Pub Date : 2022-01-01DOI: 10.20517/energymater.2022.14
Jiechun Liang, Tingting Wu2, Zi Wang, Y. Yu, Linfeng Hu, Huamei Li, Xiaohong Zhang, Xi Zhu, Yu Zhao
Perovskites are promising materials applied in new energy devices, from solar cells to battery electrodes. Under traditional experimental conditions in laboratories, the performance improvement of new energy devices is slow and limited. Artificial intelligence (AI) has recently drawn much attention in material properties prediction and new functional materials exploration. With the advent of the AI era, the methods of studying perovskites have been upgraded, thereby benefiting the energy industry. In this review, we summarize the application of AI in perovskite discovery and synthesis and its positive influence on new energy research. First, we list the advantages of AI in perovskite research and the steps of AI application in perovskite discovery, including data availability, the selection of training algorithms, and the interpretation of results. Second, we introduce a new synthesis method with high efficiency in cloud labs and explain how this platform can assist perovskite discovery. We review the use of perovskites in energy applications and illustrate that the efficiency of energy production in these fields can be significantly boosted due to the use of AI in the development process. This review aims to provide the future application prospects of AI in perovskite research and new energy generation.
{"title":"Accelerating perovskite materials discovery and correlated energy applications through artificial intelligence","authors":"Jiechun Liang, Tingting Wu2, Zi Wang, Y. Yu, Linfeng Hu, Huamei Li, Xiaohong Zhang, Xi Zhu, Yu Zhao","doi":"10.20517/energymater.2022.14","DOIUrl":"https://doi.org/10.20517/energymater.2022.14","url":null,"abstract":"Perovskites are promising materials applied in new energy devices, from solar cells to battery electrodes. Under traditional experimental conditions in laboratories, the performance improvement of new energy devices is slow and limited. Artificial intelligence (AI) has recently drawn much attention in material properties prediction and new functional materials exploration. With the advent of the AI era, the methods of studying perovskites have been upgraded, thereby benefiting the energy industry. In this review, we summarize the application of AI in perovskite discovery and synthesis and its positive influence on new energy research. First, we list the advantages of AI in perovskite research and the steps of AI application in perovskite discovery, including data availability, the selection of training algorithms, and the interpretation of results. Second, we introduce a new synthesis method with high efficiency in cloud labs and explain how this platform can assist perovskite discovery. We review the use of perovskites in energy applications and illustrate that the efficiency of energy production in these fields can be significantly boosted due to the use of AI in the development process. This review aims to provide the future application prospects of AI in perovskite research and new energy generation.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87892465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.20517/energymater.2022.66
Shumin Zheng, H. Geng, S. Eliseeva, Baoquan Wang
The demand for cryogenic applications has resulted in higher requirements for the low-temperature performance of energy storage systems. Lithium-metal batteries are the most promising energy storage systems. Lithium-metal anodes have the merits of high capacity and low potential. However, at low temperatures, especially sub-zero, the formation of lithium dendrites seriously hinders their applications. Herein, distinct from the traditional strategies of separating lithium metal from oxygen substances, we propose a new strategy to suppress dendrites by exposing lithium metal to air for short periods to generate a controlled oxidative protective layer in situ that is compact, homogeneous and mainly composed of Li3N, Li2O, LiOH and Li2CO3. Symmetrical and full cells are assembled. The air-pretreated Li metal symmetrical cell exhibits an excellent lifespan of up to 4500 h (1 mA cm-2) at 30 °C and also shows a smaller voltage polarization of 20 mV at 1.0 mA cm-2 at -20 °C. Importantly, the full cell using the air-pretreated Li metal as an anode and NCM811 as a cathode can charge-discharge normally at -20 and -40 °C. This work provides an efficient and facile approach for developing superior lithium-metal batteries for future utilization at a wide range of temperatures.
低温应用的需求对储能系统的低温性能提出了更高的要求。锂金属电池是最有前途的储能系统。锂金属阳极具有高容量、低电位的优点。然而，在低温下，特别是在零度以下，锂枝晶的形成严重阻碍了它们的应用。与传统的将金属锂从氧物质中分离的策略不同，我们提出了一种新的抑制枝晶的策略，即将金属锂短时间暴露在空气中，在原位生成一个致密、均匀的氧化保护层，主要由Li3N、Li2O、LiOH和Li2CO3组成。对称和完整的细胞组装。空气预处理的锂金属对称电池在30°C下具有长达4500 h (1 mA cm-2)的优异寿命，并且在-20°C下具有较小的电压极化，在1.0 mA cm-2下为20 mV。重要的是，使用空气预处理的锂金属作为阳极，NCM811作为阴极的全电池可以在-20和-40°C下正常充放电。这项工作为开发未来在广泛温度范围内使用的优质锂金属电池提供了一种有效而简便的方法。
{"title":"Air-exposed lithium metal as a highly stable anode for low-temperature energy storage applications","authors":"Shumin Zheng, H. Geng, S. Eliseeva, Baoquan Wang","doi":"10.20517/energymater.2022.66","DOIUrl":"https://doi.org/10.20517/energymater.2022.66","url":null,"abstract":"The demand for cryogenic applications has resulted in higher requirements for the low-temperature performance of energy storage systems. Lithium-metal batteries are the most promising energy storage systems. Lithium-metal anodes have the merits of high capacity and low potential. However, at low temperatures, especially sub-zero, the formation of lithium dendrites seriously hinders their applications. Herein, distinct from the traditional strategies of separating lithium metal from oxygen substances, we propose a new strategy to suppress dendrites by exposing lithium metal to air for short periods to generate a controlled oxidative protective layer in situ that is compact, homogeneous and mainly composed of Li3N, Li2O, LiOH and Li2CO3. Symmetrical and full cells are assembled. The air-pretreated Li metal symmetrical cell exhibits an excellent lifespan of up to 4500 h (1 mA cm-2) at 30 °C and also shows a smaller voltage polarization of 20 mV at 1.0 mA cm-2 at -20 °C. Importantly, the full cell using the air-pretreated Li metal as an anode and NCM811 as a cathode can charge-discharge normally at -20 and -40 °C. This work provides an efficient and facile approach for developing superior lithium-metal batteries for future utilization at a wide range of temperatures.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87574665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.20517/energymater.2022.30
Xiaodong Chen, Jianqiao Liu, Tiefeng Yuan, Zhiyuan Zhang, Chunyu Song, Shuai Yang, Xin Gao, N. Wang, Lifeng Cui
The oxygen evolution reaction (OER) is of fundamental importance as a half reaction and rate-controlling step that plays a predominant function in improving the energy storage and conversion efficiency during the electrochemical water-splitting process. In this review, after briefly introducing the fundamental mechanism of the OER, we systematically summarize the recent research progress for nonprecious-metal-based OER electrocatalysts of representative first-row transition metal (Fe, Co and Ni)-based composite materials. We analyze the effects of the physicochemical properties, including morphologies, structures and compositions, on the integrated performance of these OER electrocatalysts, with the aim of determining the structure-function correlation of the electrocatalysts in the electrochemical reaction process. Furthermore, the prospective development directions of OER electrocatalysts are also illustrated and emphasized. Finally, this mini-review highlights how systematic introductions will accelerate the exploitation of high-efficiency OER electrocatalysts.
{"title":"Recent advances in earth-abundant first-row transition metal (Fe, Co and Ni)-based electrocatalysts for the oxygen evolution reaction","authors":"Xiaodong Chen, Jianqiao Liu, Tiefeng Yuan, Zhiyuan Zhang, Chunyu Song, Shuai Yang, Xin Gao, N. Wang, Lifeng Cui","doi":"10.20517/energymater.2022.30","DOIUrl":"https://doi.org/10.20517/energymater.2022.30","url":null,"abstract":"The oxygen evolution reaction (OER) is of fundamental importance as a half reaction and rate-controlling step that plays a predominant function in improving the energy storage and conversion efficiency during the electrochemical water-splitting process. In this review, after briefly introducing the fundamental mechanism of the OER, we systematically summarize the recent research progress for nonprecious-metal-based OER electrocatalysts of representative first-row transition metal (Fe, Co and Ni)-based composite materials. We analyze the effects of the physicochemical properties, including morphologies, structures and compositions, on the integrated performance of these OER electrocatalysts, with the aim of determining the structure-function correlation of the electrocatalysts in the electrochemical reaction process. Furthermore, the prospective development directions of OER electrocatalysts are also illustrated and emphasized. Finally, this mini-review highlights how systematic introductions will accelerate the exploitation of high-efficiency OER electrocatalysts.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81195335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.20517/energymater.2021.25
J. Castillo, Lixin Qiao, Alexander Santiago, X. Judez, Amaia Sáenz de Buruaga, G. Jimenez, M. Armand, Heng Zhang, Chunmei Li
Li-S batteries, as the most promising post Li-ion technology, have been intensively investigated for more than a decade. Although most previous studies have focused on liquid systems, solid electrolytes, particularly all-solid-state polymer electrolytes (ASSPEs) and quasi-solid-state polymer electrolyte (QSSPEs), are appealing for Li-S cells due to their excellent flexibility and mechanical stability. Such Li-S batteries not only provide significantly improved safety but are also expected to augment the all-inclusive energy density compared to liquid systems. Therefore, this perspective briefly summarizes the recent progress on polymer-based solid-state Li-S batteries, with a special focus on electrolytes, including ASSPEs and QSSPEs. Furthermore, future work is proposed based on the existing development and current challenges. finally demonstrating the industrial viability of these electrolytes for Li-S batteries.
{"title":"Perspective of polymer-based solid-state Li-S batteries","authors":"J. Castillo, Lixin Qiao, Alexander Santiago, X. Judez, Amaia Sáenz de Buruaga, G. Jimenez, M. Armand, Heng Zhang, Chunmei Li","doi":"10.20517/energymater.2021.25","DOIUrl":"https://doi.org/10.20517/energymater.2021.25","url":null,"abstract":"Li-S batteries, as the most promising post Li-ion technology, have been intensively investigated for more than a decade. Although most previous studies have focused on liquid systems, solid electrolytes, particularly all-solid-state polymer electrolytes (ASSPEs) and quasi-solid-state polymer electrolyte (QSSPEs), are appealing for Li-S cells due to their excellent flexibility and mechanical stability. Such Li-S batteries not only provide significantly improved safety but are also expected to augment the all-inclusive energy density compared to liquid systems. Therefore, this perspective briefly summarizes the recent progress on polymer-based solid-state Li-S batteries, with a special focus on electrolytes, including ASSPEs and QSSPEs. Furthermore, future work is proposed based on the existing development and current challenges. finally demonstrating the industrial viability of these electrolytes for Li-S batteries.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74300148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.20517/energymater.2022.44
Yue Zhao, Ziqiang Liu, Zhendong Li, Zhe Peng, X. Yao
Lithium (Li) metal batteries (LMBs) have emerged as the most prospective candidates for post-Li-ion batteries. However, the practical deployment of LMBs is frustrated by the notorious Li dendrite growth on hostless Li metal anodes. Herein, a protonated Li manganese (Mn) oxide with a high Mn3+/Mn4+ ratio is used as a Li adsorbent for constructing highly stable Li metal anodes. In addition to the Mn3+ sites with high Li affinity that afford an ultralow Li nucleation overpotential, the decrease in the average Mnn+ oxidation state also induces a disordered adsorbent structure via the Jahn-Teller effect, resulting in improved Li transfer kinetics with a significantly reduced Li electroplating overpotential. Based on the mutually improved Li diffusion and adsorption kinetics, the Li adsorbent is used as a versatile host to enable dendrite-free and stable Li metal anodes in LMBs. Consequently, a modified Li||LiNi0.8Mn0.1Co0.1O2 (NMC811) coin cell with a high NMC811 loading of 4.3 mAh cm-2 delivers a high Coulombic efficiency of 99.85% over 200 cycles and the modified Li||NMC811 pouch cell also achieves a remarkable improvement in electrochemical performance. This work demonstrates a novel approach for the preparation of highly efficient Li protection structures for safe LMBs with long lifespans.
锂(Li)金属电池(lmb)已成为后锂离子电池最有前途的候选者。然而，lmb的实际部署受到了在无主锂金属阳极上臭名昭著的锂枝晶生长的阻碍。本文采用具有高Mn3+/Mn4+比例的质子化锂锰(Mn)氧化物作为锂吸附剂，构建高稳定的锂金属阳极。除了具有高Li亲和力的Mn3+位点提供了超低的Li成核过电位外，平均Mnn+氧化态的降低还通过Jahn-Teller效应诱导了无序的吸附剂结构，从而改善了Li传递动力学，显著降低了Li电镀过电位。基于相互改善的Li扩散和吸附动力学，Li吸附剂被用作lmb中无枝晶和稳定的Li金属阳极的多功能宿主。结果表明，具有4.3 mAh cm-2 NMC811负载的改性Li||LiNi0.8Mn0.1Co0.1O2 (NMC811)硬币电池在200次循环中具有99.85%的高库仑效率，改性Li||NMC811袋状电池的电化学性能也得到了显著改善。这项工作为制备具有长寿命的安全lmb的高效Li保护结构提供了一种新方法。
{"title":"Constructing stable lithium metal anodes using a lithium adsorbent with a high Mn3+/Mn4+ ratio","authors":"Yue Zhao, Ziqiang Liu, Zhendong Li, Zhe Peng, X. Yao","doi":"10.20517/energymater.2022.44","DOIUrl":"https://doi.org/10.20517/energymater.2022.44","url":null,"abstract":"Lithium (Li) metal batteries (LMBs) have emerged as the most prospective candidates for post-Li-ion batteries. However, the practical deployment of LMBs is frustrated by the notorious Li dendrite growth on hostless Li metal anodes. Herein, a protonated Li manganese (Mn) oxide with a high Mn3+/Mn4+ ratio is used as a Li adsorbent for constructing highly stable Li metal anodes. In addition to the Mn3+ sites with high Li affinity that afford an ultralow Li nucleation overpotential, the decrease in the average Mnn+ oxidation state also induces a disordered adsorbent structure via the Jahn-Teller effect, resulting in improved Li transfer kinetics with a significantly reduced Li electroplating overpotential. Based on the mutually improved Li diffusion and adsorption kinetics, the Li adsorbent is used as a versatile host to enable dendrite-free and stable Li metal anodes in LMBs. Consequently, a modified Li||LiNi0.8Mn0.1Co0.1O2 (NMC811) coin cell with a high NMC811 loading of 4.3 mAh cm-2 delivers a high Coulombic efficiency of 99.85% over 200 cycles and the modified Li||NMC811 pouch cell also achieves a remarkable improvement in electrochemical performance. This work demonstrates a novel approach for the preparation of highly efficient Li protection structures for safe LMBs with long lifespans.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80347273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A major challenge in developing zinc-air batteries (ZABs) is to exploit suitable cathodes to efficiently accelerate the key electrocatalytic processes involved. Herein, a bifunctional oxygen catalytic self-supported MnO2-based electrode is designed that displays superior oxygen reduction and evolution reaction performance over noble metal electrodes with a total overpotential of 0.69 V. In addition, the as-synthesized NiCo2O4@MnO2/carbon nanotube (CNT)-Ni foam self-supported electrode can be directly used as an oxygen electrode without externally adding carbon or a binder and shows reasonable battery performance with a high peak power density of 226 mW cm-2 and a long-term charge-discharge cycling lifetime (5 mA for 160 h). As expected, the rapid oxygen catalytic intrinsic kinetics and high battery performance of the NiCo2O4@MnO2/CNTs-Ni foam electrode originates from the unique three-dimensional hierarchical structure, which effectively promotes mass transfer. Furthermore, the CNTs combined with Ni foam form a unique “meridian” conductive structure that enables rapid electron conduction. Finally, the abundant Mn3+ active sites activated by bimetallic ions shorten the oxygen catalytic reaction distance between the active sites and reactant and reduce the surface activity of MnO2 for the O, OH, and OOH species. This work not only offers a high-performance bifunctional self-supported electrode for ZABs but also opens new insights into the activation of Mn-based electrodes.
{"title":"A bimetallic-activated MnO2 self-assembly electrode with a dual heterojunction structure for high-performance rechargeable zinc-air batteries","authors":"Zhengyu Yin, Ruinan He, Huaibin Xue, Jing-Ming Chen, Yue Wang, Xiaoxiao Ye, Nengneng Xu, Jinli Qiao, Haitao Huang","doi":"10.20517/energymater.2022.17","DOIUrl":"https://doi.org/10.20517/energymater.2022.17","url":null,"abstract":"A major challenge in developing zinc-air batteries (ZABs) is to exploit suitable cathodes to efficiently accelerate the key electrocatalytic processes involved. Herein, a bifunctional oxygen catalytic self-supported MnO2-based electrode is designed that displays superior oxygen reduction and evolution reaction performance over noble metal electrodes with a total overpotential of 0.69 V. In addition, the as-synthesized NiCo2O4@MnO2/carbon nanotube (CNT)-Ni foam self-supported electrode can be directly used as an oxygen electrode without externally adding carbon or a binder and shows reasonable battery performance with a high peak power density of 226 mW cm-2 and a long-term charge-discharge cycling lifetime (5 mA for 160 h). As expected, the rapid oxygen catalytic intrinsic kinetics and high battery performance of the NiCo2O4@MnO2/CNTs-Ni foam electrode originates from the unique three-dimensional hierarchical structure, which effectively promotes mass transfer. Furthermore, the CNTs combined with Ni foam form a unique “meridian” conductive structure that enables rapid electron conduction. Finally, the abundant Mn3+ active sites activated by bimetallic ions shorten the oxygen catalytic reaction distance between the active sites and reactant and reduce the surface activity of MnO2 for the O, OH, and OOH species. This work not only offers a high-performance bifunctional self-supported electrode for ZABs but also opens new insights into the activation of Mn-based electrodes.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81584388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.20517/energymater.2021.27
Y. Shao, Zhou Jin, Jin Li, Y. Meng, Xuejie Huang
The future development of lithium-ion battery in electric vehicles needs to improve its energy density, which is largely depends on the application of novel active materials with high specific capacity. Recently, Sn-Si hybrid materials have been proved to achieve both high specific capacity and good cycle stability. In practice, Sn-Si are mixed with graphite to form a composite electrode in order to further improve the stability. However, detailed investigation of the Sn-Si/graphite electrodes is seldom found. The current study examines the most concerned electrochemical and expansion performances of the Sn-Si/graphite anodes, accompanied with the morphology, crystalline and chemical composition analysis. The percolation model and the lattice expansion model are proven to fit well for the capacity and expansion evolution law of the composite anodes, respectively, as function of Sn-Si hybrid percentages. Base on the comparison with the conventional graphite anode, an efficient Sn-Si/graphite composite anode could be concluded that achieves a high reversible capacity (450 mAh g-1), a promising 1st coulombic efficiency (75%) and stable cycling (cycling coulombic efficiency > 98%), making it one of the Sn-based anodes closest to industrial use.
电动汽车锂离子电池的未来发展需要提高其能量密度，这在很大程度上取决于新型高比容量活性材料的应用。近年来，锡硅杂化材料已被证明具有较高的比容量和良好的循环稳定性。在实践中，为了进一步提高稳定性，将Sn-Si与石墨混合形成复合电极。然而，对锡硅/石墨电极的详细研究却很少。本文主要研究了Sn-Si/石墨阳极的电化学和膨胀性能，并对其形貌、晶体和化学成分进行了分析。结果表明，渗透模型和晶格展开模型分别能很好地拟合复合阳极的容量和膨胀随Sn-Si杂化百分比的变化规律。通过与传统石墨阳极的比较，可以得出高效的锡硅/石墨复合阳极具有高可逆容量(450 mAh g-1)，有前途的第一库仑效率(75%)和稳定的循环(循环库仑效率> 98%)，是最接近工业用途的锡基阳极之一。
{"title":"Evaluation of the electrochemical and expansion performances of the Sn-Si/graphite composite electrode for the industrial use","authors":"Y. Shao, Zhou Jin, Jin Li, Y. Meng, Xuejie Huang","doi":"10.20517/energymater.2021.27","DOIUrl":"https://doi.org/10.20517/energymater.2021.27","url":null,"abstract":"The future development of lithium-ion battery in electric vehicles needs to improve its energy density, which is largely depends on the application of novel active materials with high specific capacity. Recently, Sn-Si hybrid materials have been proved to achieve both high specific capacity and good cycle stability. In practice, Sn-Si are mixed with graphite to form a composite electrode in order to further improve the stability. However, detailed investigation of the Sn-Si/graphite electrodes is seldom found. The current study examines the most concerned electrochemical and expansion performances of the Sn-Si/graphite anodes, accompanied with the morphology, crystalline and chemical composition analysis. The percolation model and the lattice expansion model are proven to fit well for the capacity and expansion evolution law of the composite anodes, respectively, as function of Sn-Si hybrid percentages. Base on the comparison with the conventional graphite anode, an efficient Sn-Si/graphite composite anode could be concluded that achieves a high reversible capacity (450 mAh g-1), a promising 1st coulombic efficiency (75%) and stable cycling (cycling coulombic efficiency > 98%), making it one of the Sn-based anodes closest to industrial use.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83651255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.20517/energymater.2022.38
Ling Lv, Haikuo Zhang, Di Lu, Yuan Yu, Jiacheng Qi, Junbo Zhang, Shuoqing Zhang, Ruhong Li, T. Deng, Lixin Chen, Xiulin Fan
Commercial carbonate electrolytes with poor oxidation stability and high flammability limit the operating voltage of Li-ion batteries (LIBs) to ~4.3 V. As one of the most promising candidates for electrolyte solvents, sulfolane (SL) has received significant interest because of its wide electrochemical window, low flammability and high dielectric permittivity. Unfortunately, SL-based electrolytes with normal concentrations cannot achieve highly reversible Li+ intercalation/deintercalation in graphite anodes due to an ineffective solid electrolyte interface, thus undermining their potential application in LIBs. Here, a low-concentration SL-based electrolyte (LSLE) is developed for high-voltage graphite||LiNi0.8Co0.1Mn0.1O2 (NCM811) full cells. A highly reversible graphite anode can be achieved through the preferential decomposition of the dual-salt LiDFOB-LiBF4 in the LSLE. The addition of fluorobenzene further restrains the decomposition of SL, endowing uniform, robust and inorganic-rich interphases on the electrode surfaces. As a result, the LSLE with improved thermal stability can support the MCMB||NCM811 full cells at 4.4 V, evidenced by an excellent cycling performance with capacity retentions of 83% after 500 cycles at 25 ℃ and 82% after 400 cycles at 60 ℃. We believe that the design of this fluorobenzene-containing LSLE offers an effective routine for next-generation low-cost and safe electrolytes for high-voltage LIBs.
{"title":"A low-concentration sulfone electrolyte enables high-voltage chemistry of lithium-ion batteries","authors":"Ling Lv, Haikuo Zhang, Di Lu, Yuan Yu, Jiacheng Qi, Junbo Zhang, Shuoqing Zhang, Ruhong Li, T. Deng, Lixin Chen, Xiulin Fan","doi":"10.20517/energymater.2022.38","DOIUrl":"https://doi.org/10.20517/energymater.2022.38","url":null,"abstract":"Commercial carbonate electrolytes with poor oxidation stability and high flammability limit the operating voltage of Li-ion batteries (LIBs) to ~4.3 V. As one of the most promising candidates for electrolyte solvents, sulfolane (SL) has received significant interest because of its wide electrochemical window, low flammability and high dielectric permittivity. Unfortunately, SL-based electrolytes with normal concentrations cannot achieve highly reversible Li+ intercalation/deintercalation in graphite anodes due to an ineffective solid electrolyte interface, thus undermining their potential application in LIBs. Here, a low-concentration SL-based electrolyte (LSLE) is developed for high-voltage graphite||LiNi0.8Co0.1Mn0.1O2 (NCM811) full cells. A highly reversible graphite anode can be achieved through the preferential decomposition of the dual-salt LiDFOB-LiBF4 in the LSLE. The addition of fluorobenzene further restrains the decomposition of SL, endowing uniform, robust and inorganic-rich interphases on the electrode surfaces. As a result, the LSLE with improved thermal stability can support the MCMB||NCM811 full cells at 4.4 V, evidenced by an excellent cycling performance with capacity retentions of 83% after 500 cycles at 25 ℃ and 82% after 400 cycles at 60 ℃. We believe that the design of this fluorobenzene-containing LSLE offers an effective routine for next-generation low-cost and safe electrolytes for high-voltage LIBs.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88942020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.20517/energymater.2022.05
Junming Kang, Zedong Zhao, Huajing Li, Yuhuan Meng, Bo Hu, Hongbin Lu
The scarcity of lithium resources and the unsafety of organic electrolytes limit the further application of lithium-ion batteries (LIBs) in electric vehicles and grid-scale energy storage. Aqueous zinc-ion batteries (AZIBs) are potential complements for LIBs for large-scale grid energy storage because of their abundant resources, environmental friendliness, intrinsic safety and low cost. However, current AZIBs are mainly based on intercalation-type cathodes and their energy densities are not competitive with LIBs. Fortunately, conversion-type cathodes, with higher specific capacity and lower price, endow AZIBs with excellent potential for practical applications. In this review, the mechanism of energy storage and the progress in developing AZIBs based on conversion-type cathodes are summarized. Perspectives on critical scientific issues and the potential developmental directions of AZIBs are also proposed.
{"title":"An overview of aqueous zinc-ion batteries based on conversion-type cathodes","authors":"Junming Kang, Zedong Zhao, Huajing Li, Yuhuan Meng, Bo Hu, Hongbin Lu","doi":"10.20517/energymater.2022.05","DOIUrl":"https://doi.org/10.20517/energymater.2022.05","url":null,"abstract":"The scarcity of lithium resources and the unsafety of organic electrolytes limit the further application of lithium-ion batteries (LIBs) in electric vehicles and grid-scale energy storage. Aqueous zinc-ion batteries (AZIBs) are potential complements for LIBs for large-scale grid energy storage because of their abundant resources, environmental friendliness, intrinsic safety and low cost. However, current AZIBs are mainly based on intercalation-type cathodes and their energy densities are not competitive with LIBs. Fortunately, conversion-type cathodes, with higher specific capacity and lower price, endow AZIBs with excellent potential for practical applications. In this review, the mechanism of energy storage and the progress in developing AZIBs based on conversion-type cathodes are summarized. Perspectives on critical scientific issues and the potential developmental directions of AZIBs are also proposed.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82320667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.20517/energymater.2022.42
Zhaozhe Yu, Qilin Tong, Yan Cheng, P. Yang, Guiquan Zhao, H. Li, Weifeng An, D. Yan, Xia Lu, Bingbing Tian
Although Ni-rich layered materials with the general formula LiNi1-x-yCoxMnyO2 (0 < x, y < 1, NCM) hold great promise as high-energy-density cathodes in commercial lithium-ion batteries, their practical application is greatly hampered by poor cyclability and safety. Herein, a LiNi0.6Co0.2Mn0.2O2 (NCM622) cathode modified with a surface self-assembling LiLaO2 coating and subsurface La pillars demonstrates stabilized cycling at 4.6 V. The LiLaO2-coated NCM622 benefits from the suppression of interfacial side reactions, which relieves the layer-to-rock salt phase transformation and therefore improves the capacity retention under high voltages. Moreover, the La dopant, as a pillar in the NCM622 lattice, plays a dual role in expanding the c lattice parameter to enhance the Li-ion diffusion capability, as well as suppressing Ni antisite defect formation upon cycling. Consequently, the dual-modified NCM622 cathode exhibits an initial Coulombic efficiency of over 85% and a high capacity of over 200 mAh g-1 at 0.1 C. A specific capacity of 188 mAh g-1 with a capacity retention of 76% is achieved at 1 C after 200 cycles within a voltage range of 3.0-4.6 V. These findings lay a solid foundation for the materials design and performance optimization of high-energy-density cathodes for Li-ion batteries.
虽然通式为LiNi1-x-yCoxMnyO2 (0 < x, y < 1, NCM)的富镍层状材料在商用锂离子电池中作为高能量密度阴极具有很大的前景，但其可循环性和安全性差极大地阻碍了其实际应用。用表面自组装的LiLaO2涂层和亚表面La柱修饰的LiNi0.6Co0.2Mn0.2O2 (NCM622)阴极在4.6 V下表现出稳定的循环。liao2包覆的NCM622有利于抑制界面副反应，从而缓解了层向岩盐的相变，从而提高了高压下的容量保持率。此外，La掺杂剂作为NCM622晶格中的支柱，在扩展c晶格参数以增强li离子扩散能力和抑制循环后Ni反位缺陷形成方面具有双重作用。因此，双改性NCM622阴极在0.1℃下具有超过85%的初始库仑效率和超过200 mAh g-1的高容量，在3.0-4.6 V电压范围内，在1℃下经过200次循环后达到188 mAh g-1的比容量，容量保持率为76%。这些发现为锂离子电池高能量密度阴极的材料设计和性能优化奠定了坚实的基础。
{"title":"Enabling 4.6 V LiNi0.6Co0.2Mn0.2O2 cathodes with excellent structural stability: combining surface LiLaO2 self-assembly and subsurface La-pillar engineering","authors":"Zhaozhe Yu, Qilin Tong, Yan Cheng, P. Yang, Guiquan Zhao, H. Li, Weifeng An, D. Yan, Xia Lu, Bingbing Tian","doi":"10.20517/energymater.2022.42","DOIUrl":"https://doi.org/10.20517/energymater.2022.42","url":null,"abstract":"Although Ni-rich layered materials with the general formula LiNi1-x-yCoxMnyO2 (0 < x, y < 1, NCM) hold great promise as high-energy-density cathodes in commercial lithium-ion batteries, their practical application is greatly hampered by poor cyclability and safety. Herein, a LiNi0.6Co0.2Mn0.2O2 (NCM622) cathode modified with a surface self-assembling LiLaO2 coating and subsurface La pillars demonstrates stabilized cycling at 4.6 V. The LiLaO2-coated NCM622 benefits from the suppression of interfacial side reactions, which relieves the layer-to-rock salt phase transformation and therefore improves the capacity retention under high voltages. Moreover, the La dopant, as a pillar in the NCM622 lattice, plays a dual role in expanding the c lattice parameter to enhance the Li-ion diffusion capability, as well as suppressing Ni antisite defect formation upon cycling. Consequently, the dual-modified NCM622 cathode exhibits an initial Coulombic efficiency of over 85% and a high capacity of over 200 mAh g-1 at 0.1 C. A specific capacity of 188 mAh g-1 with a capacity retention of 76% is achieved at 1 C after 200 cycles within a voltage range of 3.0-4.6 V. These findings lay a solid foundation for the materials design and performance optimization of high-energy-density cathodes for Li-ion batteries.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87209364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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