Pub Date : 2025-02-20DOI: 10.1016/j.jpowsour.2025.236556
Jieyan Li , Zeru Wang , Zhuang Xu , Xin Chen , Chen Yu , Ke Wang , Bing Guo
Solid polymer electrolytes offer intimate interfacial contact with electrodes, making them ideal for solid-state lithium metal batteries. However, the well-known tradeoff between ion conductivity and mechanical property hinders its commercial application. Herein, a novel composite polymer electrolyte (CPE) is developed, which is composed of a highly crosslinked polyurethane matrix reinforced with glass fibers for strong mechanical properties, and filled with porous metal-organic framework to boost lithium-ion transport. The CPE with abounding functional hydrogen-bonding and ion-conducting domains, yields a large tensile strength of 66.8 MPa, electrochemical stability window of 5.3 V, a high ionic conductivity of 5.57 × 10−4 S cm−1 at room temperature, and a good lithium transference number of 0.59. The stable electrolyte interphase formed on the lithium metal (Li) surface enables the Li/CPE/Li cell to maintain performance for an extraordinary 1200 h. Additionally, this CPE based LiNi0.8Co0.1Mn0.1O2 batteries can achieve an extended lifespan. This design offers a new avenue for the development of CPEs with high ionic conductivity and great mechanical properties to practical high-energy solid-state batteries.
{"title":"A glass fiber reinforced crosslinked polyurethane-based composite electrolyte with high mechanical strength and large ion conductivity","authors":"Jieyan Li , Zeru Wang , Zhuang Xu , Xin Chen , Chen Yu , Ke Wang , Bing Guo","doi":"10.1016/j.jpowsour.2025.236556","DOIUrl":"10.1016/j.jpowsour.2025.236556","url":null,"abstract":"<div><div>Solid polymer electrolytes offer intimate interfacial contact with electrodes, making them ideal for solid-state lithium metal batteries. However, the well-known tradeoff between ion conductivity and mechanical property hinders its commercial application. Herein, a novel composite polymer electrolyte (CPE) is developed, which is composed of a highly crosslinked polyurethane matrix reinforced with glass fibers for strong mechanical properties, and filled with porous metal-organic framework to boost lithium-ion transport. The CPE with abounding functional hydrogen-bonding and ion-conducting domains, yields a large tensile strength of 66.8 MPa, electrochemical stability window of 5.3 V, a high ionic conductivity of 5.57 × 10<sup>−4</sup> S cm<sup>−1</sup> at room temperature, and a good lithium transference number of 0.59. The stable electrolyte interphase formed on the lithium metal (Li) surface enables the Li/CPE/Li cell to maintain performance for an extraordinary 1200 h. Additionally, this CPE based LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> batteries can achieve an extended lifespan. This design offers a new avenue for the development of CPEs with high ionic conductivity and great mechanical properties to practical high-energy solid-state batteries.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"636 ","pages":"Article 236556"},"PeriodicalIF":8.1,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-19DOI: 10.1016/j.jpowsour.2025.236535
Shimaa Abdelnaser , Shiao-Wei Kuo , Ahmed F.M. EL-Mahdy
Conjugated microporous polymers (CMPs) are significant materials owing to their π-conjugated frameworks and microporous architecture. However, several CMPs have limited electrical conductivity and redox efficiency, making them unsuitable as dynamic supercapacitor electrodes. In this work, we prepared a particular family of redox-active CMPs, namely TPP-DBTh and BTPP-DBTh CMPs, with triphenylpyridine (TPP) and redox-active benzo[1,2-b:4,5-b′]dithiophene-4-dione (DBTh) units for effective supercapacitor energy storage devices. Combining TPP and redox-active DBTh units into CMP skeletons promotes faradaic energy storage, charge transfer, and conductivity. The final CMPs demonstrate a superior specific capacity relative to previously published conventional CMPs, achieving an impressive three-electrode capacitance of up to 221.86 F g−1 at a current density of 0.5 A g−1, along with remarkable stability of up to 87.86 % within 10,000 cycles, marking this as one of the highest specific capacities recorded for CMPs. The TPP-DBTh CMP produces a symmetric two-electrode supercapacitor device, which can maintain 91.81 % of their initial capacitance after 2000 cycles. The TPP-DBTh CMP-based device has a high capacitance of 384.61 F g−1, energy density of 77.13 W h kg−1, and power density of 461.53 W kg−1 at 1.2 V. Our findings offer a straightforward method for combining electroactive moieties to create effective supercapacitor devices.
{"title":"Conjugated microporous polymers incorporating pyridine moieties for efficient faradaic supercapacitor energy storage","authors":"Shimaa Abdelnaser , Shiao-Wei Kuo , Ahmed F.M. EL-Mahdy","doi":"10.1016/j.jpowsour.2025.236535","DOIUrl":"10.1016/j.jpowsour.2025.236535","url":null,"abstract":"<div><div>Conjugated microporous polymers (CMPs) are significant materials owing to their π-conjugated frameworks and microporous architecture. However, several CMPs have limited electrical conductivity and redox efficiency, making them unsuitable as dynamic supercapacitor electrodes. In this work, we prepared a particular family of redox-active CMPs, namely TPP-DBTh and BTPP-DBTh CMPs, with triphenylpyridine (TPP) and redox-active benzo[1,2-b:4,5-b′]dithiophene-4-dione (DBTh) units for effective supercapacitor energy storage devices. Combining TPP and redox-active DBTh units into CMP skeletons promotes faradaic energy storage, charge transfer, and conductivity. The final CMPs demonstrate a superior specific capacity relative to previously published conventional CMPs, achieving an impressive three-electrode capacitance of up to 221.86 F g<sup>−1</sup> at a current density of 0.5 A g<sup>−1</sup>, along with remarkable stability of up to 87.86 % within 10,000 cycles, marking this as one of the highest specific capacities recorded for CMPs. The TPP-DBTh CMP produces a symmetric two-electrode supercapacitor device, which can maintain 91.81 % of their initial capacitance after 2000 cycles. The TPP-DBTh CMP-based device has a high capacitance of 384.61 F g<sup>−1</sup>, energy density of 77.13 W h kg<sup>−1</sup>, and power density of 461.53 W kg<sup>−1</sup> at 1.2 V. Our findings offer a straightforward method for combining electroactive moieties to create effective supercapacitor devices.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"635 ","pages":"Article 236535"},"PeriodicalIF":8.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-19DOI: 10.1016/j.jpowsour.2025.236523
Fang-Yu Tao , Dan Xie , Dan-Hong Wang , Wan-Yue Diao , Chang Liu , Godefroid Gahungu , Xing-Long Wu , Wen-Liang Li , Jing-Ping Zhang
Sodium metal batteries (SMBs) fail to meet practical application metrics due to uncontrollable dendrite growth, undesired electrode interfacial side reactions, and infinite volume change during the stripping/plating process. Herein, a triple functional sodiophilic Ti3C2Tx-MXene-modified 3D conductive carbon cloth (Ti3C2Tx-MXene@CC) is elaborately designed to directed-regulation Na metal deposition behavior and electrode interfacial structure, as well as alleviate the volume change during cycling. Initially, the sodiophilic Ti3C2Tx-MXene nanosheets exploit their surface anchoring effect to induce Na metal along the surface of nanosheet deposition, thereby suppressing the dendrites growth. Simultaneously, introducing sodiophilic seeds facilitates the formation of stable NaF-rich solid electrolyte interface film on the electrode surface, improving Na deposition dynamics and uniformity. Then, the high specific surface area and open 3D structure of the CC skeleton effectively reduce the local current density and accommodate the Na deposits. Consequently, the Ti3C2Tx-MXene@CC electrode enables symmetric cells to cycle over 2000 h with a stable overpotential of 21 mV at 4 mA cm−2/1 mA h cm−2. And the assembled Na-Ti3C2TX-MXene@CC||NVPOF full cells deliver a high capacity of 114.8 mA h g−1 over 1300 cycles with an excellent capacity retention of 96.4 %, demonstrating the superiority of Ti3C2TX-MXene@CC electrode in the construction of high-performance SMBs.
{"title":"Directed-regulation sodium metal deposition behavior and electrode interfacial structure via surface anchoring effect enable long-life and dendrite-free sodium metal anode","authors":"Fang-Yu Tao , Dan Xie , Dan-Hong Wang , Wan-Yue Diao , Chang Liu , Godefroid Gahungu , Xing-Long Wu , Wen-Liang Li , Jing-Ping Zhang","doi":"10.1016/j.jpowsour.2025.236523","DOIUrl":"10.1016/j.jpowsour.2025.236523","url":null,"abstract":"<div><div>Sodium metal batteries (SMBs) fail to meet practical application metrics due to uncontrollable dendrite growth, undesired electrode interfacial side reactions, and infinite volume change during the stripping/plating process. Herein, a triple functional sodiophilic Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-MXene-modified 3D conductive carbon cloth (Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-MXene@CC) is elaborately designed to directed-regulation Na metal deposition behavior and electrode interfacial structure, as well as alleviate the volume change during cycling. Initially, the sodiophilic Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-MXene nanosheets exploit their surface anchoring effect to induce Na metal along the surface of nanosheet deposition, thereby suppressing the dendrites growth. Simultaneously, introducing sodiophilic seeds facilitates the formation of stable NaF-rich solid electrolyte interface film on the electrode surface, improving Na deposition dynamics and uniformity. Then, the high specific surface area and open 3D structure of the CC skeleton effectively reduce the local current density and accommodate the Na deposits. Consequently, the Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>-MXene@CC electrode enables symmetric cells to cycle over 2000 h with a stable overpotential of 21 mV at 4 mA cm<sup>−2</sup>/1 mA h cm<sup>−2</sup>. And the assembled Na-Ti<sub>3</sub>C<sub>2</sub>T<sub>X</sub>-MXene@CC||NVPOF full cells deliver a high capacity of 114.8 mA h g<sup>−1</sup> over 1300 cycles with an excellent capacity retention of 96.4 %, demonstrating the superiority of Ti<sub>3</sub>C<sub>2</sub>T<sub>X</sub>-MXene@CC electrode in the construction of high-performance SMBs.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"635 ","pages":"Article 236523"},"PeriodicalIF":8.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-19DOI: 10.1016/j.jpowsour.2025.236543
Zicheng Li, Caiwei Wang, Yan He, Bo Chen, Yuanyuan Ge, Xuemin Cui, Zhili Li
Clarifying microstructure-performance relationship is significant to rationally design high-performance porous carbon cathodes for zinc ion hybrid capacitors (ZIHCs). However, the microstructure of porous carbons evolves irregularly due to the complex preparation process. Herein, a cyanamide mediating potassium carbonate (K2CO3) activation strategy is developed to orderly regulate the micropore/mesopore and edge nitrogen/surface area ratios of nitrogen-doped lignin-derived porous carbons (NLPCs). Cyanamide units react with K2CO3 to generate KOCN and edge-nitrogen framework below 500 °C. As temperature increases from 500 to 900 °C, KOCN gradually reacts with carbon to increase surface area and generate KCN template to construct mesopore, negatively-gradient regulating the micropore/mesopore ratio from 14.0 to 0.6. Simultaneously, the edge-nitrogen framework is integrated into carbon skeleton to construct edge nitrogen, and gradually depleted by reacting with K2CO3 to generate KOCN, negatively-gradient regulating the edge nitrogen/surface area ratio from 3.6 to 0.3 at.% m−2 mg. The micropores and edge nitrogen can be maximally utilized for Zn2+ ion storage under micropore/mesopore ratio of 0.6 and edge nitrogen/surface area ratio of 0.6 at.% m−2 mg, achieving an excellent capacitance of 357 F g−1 and robust rate capability. The assembled ZIHCs display the highest energy density of 126 Wh kg−1 at 80 W kg−1.
{"title":"Microstructure-capacitive performance relationship of carbon cathodes for zinc ion hybrid capacitors: Effect of edge nitrogen/surface area and micropore/mesopore ratios","authors":"Zicheng Li, Caiwei Wang, Yan He, Bo Chen, Yuanyuan Ge, Xuemin Cui, Zhili Li","doi":"10.1016/j.jpowsour.2025.236543","DOIUrl":"10.1016/j.jpowsour.2025.236543","url":null,"abstract":"<div><div>Clarifying microstructure-performance relationship is significant to rationally design high-performance porous carbon cathodes for zinc ion hybrid capacitors (ZIHCs). However, the microstructure of porous carbons evolves irregularly due to the complex preparation process. Herein, a cyanamide mediating potassium carbonate (K<sub>2</sub>CO<sub>3</sub>) activation strategy is developed to orderly regulate the micropore/mesopore and edge nitrogen/surface area ratios of nitrogen-doped lignin-derived porous carbons (NLPCs). Cyanamide units react with K<sub>2</sub>CO<sub>3</sub> to generate KOCN and edge-nitrogen framework below 500 °C. As temperature increases from 500 to 900 °C, KOCN gradually reacts with carbon to increase surface area and generate KCN template to construct mesopore, negatively-gradient regulating the micropore/mesopore ratio from 14.0 to 0.6. Simultaneously, the edge-nitrogen framework is integrated into carbon skeleton to construct edge nitrogen, and gradually depleted by reacting with K<sub>2</sub>CO<sub>3</sub> to generate KOCN, negatively-gradient regulating the edge nitrogen/surface area ratio from 3.6 to 0.3 at.% m<sup>−2</sup> mg. The micropores and edge nitrogen can be maximally utilized for Zn<sup>2+</sup> ion storage under micropore/mesopore ratio of 0.6 and edge nitrogen/surface area ratio of 0.6 at.% m<sup>−2</sup> mg, achieving an excellent capacitance of 357 F g<sup>−1</sup> and robust rate capability. The assembled ZIHCs display the highest energy density of 126 Wh kg<sup>−1</sup> at 80 W kg<sup>−1</sup>.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"635 ","pages":"Article 236543"},"PeriodicalIF":8.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-19DOI: 10.1016/j.jpowsour.2025.236329
Jacob Faulkner, Bruce J. Tatarchuk
Ensuring the safety of Li-ion battery packs is crucial due to their widespread use in various applications. Li-ion batteries fail catastrophically, and dense packaging increases the risk of failure propagation. To design safe battery packs that prevent propagating failures, the energetics of battery failure must be well-defined for the operating conditions and selected battery chemistry. Experimental failure testing of every battery chemistry and cell size is cumbersome and labor-intensive. This study theoretically calculates failure energetics for: (i) closed failures and (ii) open failures. Calculations are based on the component masses within the cell, including the cathode, anode, and electrolyte. Failure Energies (kJ) are normalized and reported based on the Electrical Energy content (kJ) of the cell, RFE/EE. The calculated RFE/EE values for a lithium iron phosphate (LFP) battery are (i) 1.10 and (ii) 21.76, which agree with experimental studies. For open system failures, the calculated RFE/EE for the nickel manganese cobalt (NMC) cell is 13.85 and for the lithium cobalt oxide/NMC (LCO/NMC) cell it is 10.21. While the LFP chemistry is considered safe, its safety is highly dependent on the failure conditions making it critical to keep Li-ion battery packs in inert enclosures to diminish the severity of failure.
{"title":"The enthalpic reaction limits of Li-ion battery chemistries within various operating regimes and environments","authors":"Jacob Faulkner, Bruce J. Tatarchuk","doi":"10.1016/j.jpowsour.2025.236329","DOIUrl":"10.1016/j.jpowsour.2025.236329","url":null,"abstract":"<div><div>Ensuring the safety of Li-ion battery packs is crucial due to their widespread use in various applications. Li-ion batteries fail catastrophically, and dense packaging increases the risk of failure propagation. To design safe battery packs that prevent propagating failures, the energetics of battery failure must be well-defined for the operating conditions and selected battery chemistry. Experimental failure testing of every battery chemistry and cell size is cumbersome and labor-intensive. This study theoretically calculates failure energetics for: (i) closed failures and (ii) open failures. Calculations are based on the component masses within the cell, including the cathode, anode, and electrolyte. <u>F</u>ailure <u>E</u>nergies (kJ) are normalized and reported based on the <u>E</u>lectrical <u>E</u>nergy content (kJ) of the cell, R<sub>FE/EE</sub>. The calculated R<sub>FE/EE</sub> values for a lithium iron phosphate (LFP) battery are (i) 1.10 and (ii) 21.76, which agree with experimental studies. For open system failures, the calculated R<sub>FE/EE</sub> for the nickel manganese cobalt (NMC) cell is 13.85 and for the lithium cobalt oxide/NMC (LCO/NMC) cell it is 10.21. While the LFP chemistry is considered safe, its safety is highly dependent on the failure conditions making it critical to keep Li-ion battery packs in inert enclosures to diminish the severity of failure.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"635 ","pages":"Article 236329"},"PeriodicalIF":8.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-19DOI: 10.1016/j.jpowsour.2025.236559
Yousif Yahia Ahmed Abuker , Zhongyong Liu , Abdullah Shoukat , Lei Mao
Accurate fault diagnosis is crucial for enhancing the reliability of polymer electrolyte membrane fuel cells (PEMFCs), a promising clean energy technology. Traditional methods, like Electrochemical Impedance Spectroscopy (EIS), provide insights into electrochemical processes but are limited by high costs and long measurement times. Recently, alternating current (AC) voltage response signals have emerged as an effective alternative, capturing essential diagnostic information without requiring steady-state operation. Multi-sine excitation signals, which improve the depth of online diagnosis, often suffer from redundancy, noise, and increased computational load due to wide frequency ranges, affecting the accuracy and efficiency of measurements. Based on the AC voltage response, this study proposes a novel fault diagnosis framework for PEMFCs, by integrating the distribution of relaxation times (DRT) analysis with the TimesNet deep learning architecture. DRT analysis improves the selection of characteristic frequencies by isolating those related to key electrochemical processes. These frequencies guide the construction of targeted multi-sine excitation, improving signal quality and fault sensitivity. TimesNet converts one-dimensional AC voltage into two-dimensional representation capturing complex temporal patterns, enabling accurate fault diagnosis. Experimental results demonstrated the effectiveness of this framework on different PEMFC health conditions, achieving up to 99.4 % accuracy. This framework provides faster and more reliable PEMFC diagnosis.
{"title":"Efficient diagnosis of water management faults in polymer electrolyte membrane fuel cells using optimized multi-sine excitation signal and TimesNet","authors":"Yousif Yahia Ahmed Abuker , Zhongyong Liu , Abdullah Shoukat , Lei Mao","doi":"10.1016/j.jpowsour.2025.236559","DOIUrl":"10.1016/j.jpowsour.2025.236559","url":null,"abstract":"<div><div>Accurate fault diagnosis is crucial for enhancing the reliability of polymer electrolyte membrane fuel cells (PEMFCs), a promising clean energy technology. Traditional methods, like Electrochemical Impedance Spectroscopy (EIS), provide insights into electrochemical processes but are limited by high costs and long measurement times. Recently, alternating current (AC) voltage response signals have emerged as an effective alternative, capturing essential diagnostic information without requiring steady-state operation. Multi-sine excitation signals, which improve the depth of online diagnosis, often suffer from redundancy, noise, and increased computational load due to wide frequency ranges, affecting the accuracy and efficiency of measurements. Based on the AC voltage response, this study proposes a novel fault diagnosis framework for PEMFCs, by integrating the distribution of relaxation times (DRT) analysis with the TimesNet deep learning architecture. DRT analysis improves the selection of characteristic frequencies by isolating those related to key electrochemical processes. These frequencies guide the construction of targeted multi-sine excitation, improving signal quality and fault sensitivity. TimesNet converts one-dimensional AC voltage into two-dimensional representation capturing complex temporal patterns, enabling accurate fault diagnosis. Experimental results demonstrated the effectiveness of this framework on different PEMFC health conditions, achieving up to 99.4 % accuracy. This framework provides faster and more reliable PEMFC diagnosis.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"635 ","pages":"Article 236559"},"PeriodicalIF":8.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-19DOI: 10.1016/j.jpowsour.2025.236532
Aida Zaabtia , Mohamedou Ba , Mahmoud Ben Amara , Salah Ammar
This study focuses on the treatment of margin (olive mill wastewater) using the electro-Fenton process with different anodes powered by solar energy. Iron from pyrite is used as a catalyst, and hydrogen peroxide is produced in situ by bubbling air into the effluent. A three-factor Box-Behnken design is employed for optimization. The results show that a boron-doped diamond (BDD) anode achieves a chemical oxygen demand (COD) reduction rate of 98.71 % under the following conditions: current of 0.7 A, pyrite mass of 0.3 g, and electrolysis time of 90 min. Using a platinum anode, a COD reduction rate of 87.0 % is obtained with a current of 0.5 A, a pyrite mass of 0.3 g, and an electrolysis time of 75 min. Energy consumption is 10.35 kWh m−3 for BDD and 6.25 kWh m−3 for Pt, giving an operating cost of around 1.13 $ m−3 and 0.682 $ m−3 for the BDD and Pt respectively. This study demonstrates that the BDD electrode yields superior results compared to a flat platinum anode when using solar energy.
{"title":"Application of a Box-Behnken design to the optimization of margin processing conditions by the electro-Fenton process on different anodes using solar energy","authors":"Aida Zaabtia , Mohamedou Ba , Mahmoud Ben Amara , Salah Ammar","doi":"10.1016/j.jpowsour.2025.236532","DOIUrl":"10.1016/j.jpowsour.2025.236532","url":null,"abstract":"<div><div>This study focuses on the treatment of margin (olive mill wastewater) using the electro-Fenton process with different anodes powered by solar energy. Iron from pyrite is used as a catalyst, and hydrogen peroxide is produced <em>in situ</em> by bubbling air into the effluent. A three-factor Box-Behnken design is employed for optimization. The results show that a boron-doped diamond (BDD) anode achieves a chemical oxygen demand (COD) reduction rate of 98.71 % under the following conditions: current of 0.7 A, pyrite mass of 0.3 g, and electrolysis time of 90 min. Using a platinum anode, a COD reduction rate of 87.0 % is obtained with a current of 0.5 A, a pyrite mass of 0.3 g, and an electrolysis time of 75 min. Energy consumption is 10.35 kWh m<sup>−3</sup> for BDD and 6.25 kWh m<sup>−3</sup> for Pt, giving an operating cost of around 1.13 $ m<sup>−3</sup> and 0.682 $ m<sup>−3</sup> for the BDD and Pt respectively. This study demonstrates that the BDD electrode yields superior results compared to a flat platinum anode when using solar energy.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"635 ","pages":"Article 236532"},"PeriodicalIF":8.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-19DOI: 10.1016/j.jpowsour.2025.236545
Sungjun Choi , Jiseon Kim , Minseok Kim , Yongho Choa , Hayri Okcu , Daniel Bellet , David Muñoz-Rojas , Caroline Sunyong Lee
A chemiresistive gas sensor capable of sensing NO gas at near-room temperature (50 °C) is fabricated by depositing ZnO film using the dry-deposition method, Nano-Particle Deposition System (NPDS). We aim to overcome the limitations of conventional NO gas sensors that require high operating temperature of approximately 300 °C. A gas-sensing visualization system is developed to provide instant information of target gas. The gas sensor with viologen-based electrochromic device, is connected via Arduino to demonstrate a sensing system. The ZnO gas sensor exhibits high surface roughness of 0.583 μm. Due to oxygen vacancies on the surface, the sensor demonstrates a response of 14 % to 200-ppm NO gas under low temperature of 50 °C. The viologen-based electrochromic device displays various colors depending on the applied voltage, while maintaining stability over 100 cycles. Using this gas-sensing visualization system, the electrochromic device changes to a yellow state upon exposure to 200-ppm NO gas at 50 °C and switches to a green state when exposed to air. Cycling tests confirm that this response is maintained for 40 cycles. This demonstrates the feasibility of the proposed gas-sensing visualization system operable near room temperature, offering potential alternative to chemiresistive sensors that are more reactive at high temperatures.
{"title":"Fabrication of visualized NO gas sensing system operable at near room temperature","authors":"Sungjun Choi , Jiseon Kim , Minseok Kim , Yongho Choa , Hayri Okcu , Daniel Bellet , David Muñoz-Rojas , Caroline Sunyong Lee","doi":"10.1016/j.jpowsour.2025.236545","DOIUrl":"10.1016/j.jpowsour.2025.236545","url":null,"abstract":"<div><div>A chemiresistive gas sensor capable of sensing NO gas at near-room temperature (50 °C) is fabricated by depositing ZnO film using the dry-deposition method, Nano-Particle Deposition System (NPDS). We aim to overcome the limitations of conventional NO gas sensors that require high operating temperature of approximately 300 °C. A gas-sensing visualization system is developed to provide instant information of target gas. The gas sensor with viologen-based electrochromic device, is connected via Arduino to demonstrate a sensing system. The ZnO gas sensor exhibits high surface roughness of 0.583 μm. Due to oxygen vacancies on the surface, the sensor demonstrates a response of 14 % to 200-ppm NO gas under low temperature of 50 °C. The viologen-based electrochromic device displays various colors depending on the applied voltage, while maintaining stability over 100 cycles. Using this gas-sensing visualization system, the electrochromic device changes to a yellow state upon exposure to 200-ppm NO gas at 50 °C and switches to a green state when exposed to air. Cycling tests confirm that this response is maintained for 40 cycles. This demonstrates the feasibility of the proposed gas-sensing visualization system operable near room temperature, offering potential alternative to chemiresistive sensors that are more reactive at high temperatures.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"635 ","pages":"Article 236545"},"PeriodicalIF":8.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-18DOI: 10.1016/j.jpowsour.2025.236530
Xiaosheng Zhang , Yuyin Li , Jinyu Zhang , Yu Liu , Lingyang Xue , Lei Zhang , Xiupan Yue , Xuying Liu , Zhengtang Luo , Linlin Zhang
A sub-neutral aqueous electrolyte with buffering effect is desirable to stabilize the electrolyte pH value and achieve the reversible zinc storage. Herein, a pH-buffered zinc acrylate/sodium acrylate electrolyte (Zn(AA)2/NaAA) are well-proposed, which regulate the electrolyte pH value to be stable at ∼5.1 without any acid-base reagent additives. The molecular dynamics simulation results demonstrate that the acrylate anions in the (Zn(AA)2/NaAA) electrolyte participate in the coordination of Zn2+. The weakly-solvated zinc ion structure effectively weakens the zinc metal corrosion and hydrogen evolution reaction. Therefore, the assembled Zn-NaV3O8·1.5H2O with (Zn(AA)2/NaAA) battery exhibits the excellent stability over a wide range of current densities (1–5 A g−1). This work provides new insights to design the novel aqueous electrolyte salt for the reversible zinc storage.
{"title":"A sub-neutral aqueous electrolyte with pH buffering effect for the stable and reversible zinc metal electrochemistry","authors":"Xiaosheng Zhang , Yuyin Li , Jinyu Zhang , Yu Liu , Lingyang Xue , Lei Zhang , Xiupan Yue , Xuying Liu , Zhengtang Luo , Linlin Zhang","doi":"10.1016/j.jpowsour.2025.236530","DOIUrl":"10.1016/j.jpowsour.2025.236530","url":null,"abstract":"<div><div>A sub-neutral aqueous electrolyte with buffering effect is desirable to stabilize the electrolyte pH value and achieve the reversible zinc storage. Herein, a pH-buffered zinc acrylate/sodium acrylate electrolyte (Zn(AA)<sub>2</sub>/NaAA) are well-proposed, which regulate the electrolyte pH value to be stable at ∼5.1 without any acid-base reagent additives. The molecular dynamics simulation results demonstrate that the acrylate anions in the (Zn(AA)<sub>2</sub>/NaAA) electrolyte participate in the coordination of Zn<sup>2+</sup>. The weakly-solvated zinc ion structure effectively weakens the zinc metal corrosion and hydrogen evolution reaction. Therefore, the assembled Zn-NaV<sub>3</sub>O<sub>8</sub>·1.5H<sub>2</sub>O with (Zn(AA)<sub>2</sub>/NaAA) battery exhibits the excellent stability over a wide range of current densities (1–5 A g<sup>−1</sup>). This work provides new insights to design the novel aqueous electrolyte salt for the reversible zinc storage.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"635 ","pages":"Article 236530"},"PeriodicalIF":8.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Because separator serves as a pivotal component that determines the performance of sodium-ion batteries (SIBs), it is essential to develop a separator with excellent electrolyte wettability, exceptional electrochemical performance and superior safety. Herein, a high performance cellulose modified separator with numerous functional groups and a SrF2 reinforcement layer on the surface has been fabricated through organic synthesis and in situ assembly, which not only endows the separator with an electrolyte-affinitive surface, but also effectively regulates interfacial interactions in the battery. These characteristics feature the separator to accelerate the transport of Na+ and form a more stable solid electrolyte interphase (SEI), thereby significantly augment the performance of SIBs. Notably, the Na||hard carbon (HC) cell assembled with the modified separator demonstrates a remarkable discharge capacity of 250.2 (mAh g−1) at 0.5C, surpassing both unmodified cellulose separators (168.7 mAh g−1) and conventional glass fiber (GF) separators (220.2 mAh g−1). In addition, the cell with modified separator still maintains the highest discharge capacity (220.0 mAh g−1) and excellent retention (87.9 %) after 1000 cycles. Furthermore, the prussian blue half cells of modified separator exhibit a high specific capacity of 95.3 mAh g−1 at 1C, and show an enhanced initial specific capacity of 64.0 mAh g−1 at 5C. This research offers a novel strategy for the design of high-performance separator for SIBs.
{"title":"High performance sodium-ion batteries realized by design functional groups with the polar SrF2 reinforcement layer on modified cellulose separator","authors":"Qilu Zhu, Xinyu Li, Jiaqi Ding, Longkai Zhang, Wenjuan Qiu, Guojun Luo, Xin Xiao, Junmin Nan, Xiaoxi Zuo","doi":"10.1016/j.jpowsour.2025.236569","DOIUrl":"10.1016/j.jpowsour.2025.236569","url":null,"abstract":"<div><div>Because separator serves as a pivotal component that determines the performance of sodium-ion batteries (SIBs), it is essential to develop a separator with excellent electrolyte wettability, exceptional electrochemical performance and superior safety. Herein, a high performance cellulose modified separator with numerous functional groups and a SrF<sub>2</sub> reinforcement layer on the surface has been fabricated through organic synthesis and in situ assembly, which not only endows the separator with an electrolyte-affinitive surface, but also effectively regulates interfacial interactions in the battery. These characteristics feature the separator to accelerate the transport of Na<sup>+</sup> and form a more stable solid electrolyte interphase (SEI), thereby significantly augment the performance of SIBs. Notably, the Na||hard carbon (HC) cell assembled with the modified separator demonstrates a remarkable discharge capacity of 250.2 (mAh g<sup>−1</sup>) at 0.5C, surpassing both unmodified cellulose separators (168.7 mAh g<sup>−1</sup>) and conventional glass fiber (GF) separators (220.2 mAh g<sup>−1</sup>). In addition, the cell with modified separator still maintains the highest discharge capacity (220.0 mAh g<sup>−1</sup>) and excellent retention (87.9 %) after 1000 cycles. Furthermore, the prussian blue half cells of modified separator exhibit a high specific capacity of 95.3 mAh g<sup>−1</sup> at 1C, and show an enhanced initial specific capacity of 64.0 mAh g<sup>−1</sup> at 5C. This research offers a novel strategy for the design of high-performance separator for SIBs.</div></div>","PeriodicalId":377,"journal":{"name":"Journal of Power Sources","volume":"635 ","pages":"Article 236569"},"PeriodicalIF":8.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号