Pub Date : 2024-07-12DOI: 10.1007/s11581-024-05686-z
Junjie Tao, Shunli Wang, Wen Cao, Paul Takyi-Aninakwa, Carlos Fernandez, Josep M. Guerrero
With the gradual transformation of energy industries around the world, the trend of industrial reform led by clean energy has become increasingly apparent. As a critical link in the new energy industry chain, lithium-ion (Li-ion) battery energy storage system plays an irreplaceable role. Accurate estimation of Li-ion battery states, especially state of charge (SOC) and state of health (SOH), is the core to realize the safe and efficient utilization of energy storage systems. This paper presents a systematic and comprehensive evaluation and summary of the most advanced Li-ion battery state estimation methods proposed in the past 3 years, focusing on analyzing data-driven state estimation algorithms. At the same time, the latest Li-ion battery data sets and data selection methods are analyzed, and future research trends and possible challenges are proposed. This review will provide a valuable reference for future academic research in Li-ion battery state estimation.
{"title":"A comprehensive review of state-of-charge and state-of-health estimation for lithium-ion battery energy storage systems","authors":"Junjie Tao, Shunli Wang, Wen Cao, Paul Takyi-Aninakwa, Carlos Fernandez, Josep M. Guerrero","doi":"10.1007/s11581-024-05686-z","DOIUrl":"https://doi.org/10.1007/s11581-024-05686-z","url":null,"abstract":"<p>With the gradual transformation of energy industries around the world, the trend of industrial reform led by clean energy has become increasingly apparent. As a critical link in the new energy industry chain, lithium-ion (Li-ion) battery energy storage system plays an irreplaceable role. Accurate estimation of Li-ion battery states, especially state of charge (SOC) and state of health (SOH), is the core to realize the safe and efficient utilization of energy storage systems. This paper presents a systematic and comprehensive evaluation and summary of the most advanced Li-ion battery state estimation methods proposed in the past 3 years, focusing on analyzing data-driven state estimation algorithms. At the same time, the latest Li-ion battery data sets and data selection methods are analyzed, and future research trends and possible challenges are proposed. This review will provide a valuable reference for future academic research in Li-ion battery state estimation.</p>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-12DOI: 10.1007/s11581-024-05699-8
Raju Vadthya, Venkata Narendra Kumar Y, Vatsala Rani Jetti
Rechargeable magnesium batteries (RMBs) represent a promising beyond-lithium technology for energy storage due to their high energy and power densities. However, developing suitable electrolytes compatible with both electrodes and exhibiting high thermal and electrochemical stabilities remains a significant challenge for RMBs. In this study, we present the development of a novel electrolyte for RMBs based on a eutectic mixture of 1-ethyl-3-methylimidazolium chloride and 1-ethyl-3-methylimidazolium hexafluorophosphate. This electrolyte demonstrates a high ionic conductivity of ~ 6.7 mS.cm−1 at room temperature and a wide electrochemical stability window (> 4.5 V vs. Mg/Mg2+). We demonstrate that the present electrolyte enables the reversible operation of an Mg-graphite cell with a discharge capacity of ~ 120 mAh.g−1 for over 500 cycles while maintaining a Coulombic efficiency of > 95%. Furthermore, the distinctive dual-ion transport behavior of the electrolyte is substantiated through the fabrication of a symmetric graphite cell, where both anions and cations exhibit bidirectional movement during the charge and discharge processes. This cell manifests an equivalent discharge capacity to that of Mg-graphite cells. These findings underscore the potential of further optimizing RMBs utilizing this electrolyte, offering prospects for superior energy density and enhanced performance across diverse application domains.
可充电镁电池(RMB)具有高能量和高功率密度,是一种前景广阔的锂外储能技术。然而,开发与两种电极兼容并具有高热稳定性和电化学稳定性的合适电解质仍然是可充电镁电池面临的重大挑战。在本研究中,我们基于 1-乙基-3-甲基氯化咪唑和 1-乙基-3-甲基六氟磷酸盐的共晶混合物,开发了一种新型人民币电解质。这种电解质在室温下具有约 6.7 mS.cm-1 的高离子电导率和较宽的电化学稳定性窗口(> 4.5 V vs. Mg/Mg2+)。我们证明,目前的电解质可使镁-石墨电池在超过 500 个循环中以约 120 mAh.g-1 的放电容量可逆运行,同时库仑效率保持在 > 95%。此外,通过制造对称石墨电池,证实了电解质独特的双离子传输行为,其中阴离子和阳离子在充放电过程中均表现出双向运动。这种电池的放电能力与镁石墨电池相当。这些发现强调了利用这种电解质进一步优化人民币的潜力,为在不同应用领域实现更高的能量密度和更强的性能提供了前景。
{"title":"Advances in ionic-liquid-based eutectic electrolyte for high voltage rechargeable magnesium batteries","authors":"Raju Vadthya, Venkata Narendra Kumar Y, Vatsala Rani Jetti","doi":"10.1007/s11581-024-05699-8","DOIUrl":"https://doi.org/10.1007/s11581-024-05699-8","url":null,"abstract":"<p>Rechargeable magnesium batteries (RMBs) represent a promising beyond-lithium technology for energy storage due to their high energy and power densities. However, developing suitable electrolytes compatible with both electrodes and exhibiting high thermal and electrochemical stabilities remains a significant challenge for RMBs. In this study, we present the development of a novel electrolyte for RMBs based on a eutectic mixture of 1-ethyl-3-methylimidazolium chloride and 1-ethyl-3-methylimidazolium hexafluorophosphate. This electrolyte demonstrates a high ionic conductivity of ~ 6.7 mS.cm<sup>−1</sup> at room temperature and a wide electrochemical stability window (> 4.5 V vs. Mg/Mg<sup>2+</sup>). We demonstrate that the present electrolyte enables the reversible operation of an Mg-graphite cell with a discharge capacity of ~ 120 mAh.g<sup>−1</sup> for over 500 cycles while maintaining a Coulombic efficiency of > 95%. Furthermore, the distinctive dual-ion transport behavior of the electrolyte is substantiated through the fabrication of a symmetric graphite cell, where both anions and cations exhibit bidirectional movement during the charge and discharge processes. This cell manifests an equivalent discharge capacity to that of Mg-graphite cells. These findings underscore the potential of further optimizing RMBs utilizing this electrolyte, offering prospects for superior energy density and enhanced performance across diverse application domains.</p>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-11DOI: 10.1007/s11581-024-05701-3
Victor Mshi Igba, M. A. Garcia-Lobato, Ulises Matías García-Pérez, E. Oyervides-Muñoz, Eder I. Martínez-Mora
Activated carbon fibers (ACFs) were synthesized using a straightforward two-step process from dryer lint microfibers in a self-generated atmosphere. During pyrolysis and activation, a CO/CO2 environment was created based on the Boudouard equilibrium. The resulting ACFs showed a high specific surface area (1720 m2/g), a suitable pore size distribution, and good electrical conductivity (0.34–0.36 S/cm), promoting rapid ion transfer. ACFs demonstrated a high specific capacitance of 156.2 at 0.9 V and 180.3 F/g at 1 V. Notably, ACFs demonstrated outstanding rate capability with a power density exceeding 35 kW/kg, along with an extended cycle life of at least charge/discharge 104 cycles. These results are comparable to methods involving tube furnaces under inert gas with controlled heating ramps.
{"title":"Activated carbon fibers derived from dryer lint via self-generated atmosphere for supercapacitor applications","authors":"Victor Mshi Igba, M. A. Garcia-Lobato, Ulises Matías García-Pérez, E. Oyervides-Muñoz, Eder I. Martínez-Mora","doi":"10.1007/s11581-024-05701-3","DOIUrl":"https://doi.org/10.1007/s11581-024-05701-3","url":null,"abstract":"<p>Activated carbon fibers (ACFs) were synthesized using a straightforward two-step process from dryer lint microfibers in a self-generated atmosphere. During pyrolysis and activation, a CO/CO<sub>2</sub> environment was created based on the Boudouard equilibrium. The resulting ACFs showed a high specific surface area (1720 m<sup>2</sup>/g), a suitable pore size distribution, and good electrical conductivity (0.34–0.36 S/cm), promoting rapid ion transfer. ACFs demonstrated a high specific capacitance of 156.2 at 0.9 V and 180.3 F/g at 1 V. Notably, ACFs demonstrated outstanding rate capability with a power density exceeding 35 kW/kg, along with an extended cycle life of at least charge/discharge 10<sup>4</sup> cycles. These results are comparable to methods involving tube furnaces under inert gas with controlled heating ramps.</p>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This work focuses on surface modification of an innovative anionic chelating support derived from discarded polyacrylonitrile fiber (PANF) waste. The approach involves transforming nitrile groups into N,N-dicarboxymethyl amide groups through surface functionalization. Key operational parameters such as pH, temperature, chelating agent concentration, and reaction time were systematically optimized using JMP experimental design methodology. The study’s results affirm the success of the functionalization process, showcasing the efficient conversion of nitrile groups into iminodiacetic groups. Significantly, the findings underscore the economic feasibility of generating a novel chelating fiber through surface modification. The achieved optimal conversion rate for nitrile groups was approximately 81.4%, with pH, reaction temperature, and time identified as influential factors. The optimal conditions were determined as a pH of 10, a temperature of 70 °C, and a reaction time of 60 min. Additionally, comprehensive characterization revealed improved thermal stability resulting from the modification process utilizing the monochloroacetic acid (MCA) chelating agent. The study further explored the structural and thermal properties of the produced adsorbent. Measurements of ion exchange capacity confirmed the successful incorporation of additional carboxylic groups on the functionalized polyacrylonitrile fiber waste (PANFF), reaching a maximum value of 7.55 meq/g. This is notably higher than the 0.89 meq/g observed for pure polyacrylonitrile fiber (PANF) waste.