Rational manipulation of electrolyte to induce homogeneous SEI on hard carbon anode for sodium-ion battery  

作　　者：Lu Liu Lingling Xiao Zhi Sun Shahid Bashir Ramesh Kasi Yonghong Gu Ramesh Subramaniam 

机构地区：[1]Research Center for Clean Utilization Technology Phosphorous Resources,Hubei Three Gorges Polytechnic,Yichang 443000,Hubei,China [2]Department of Physics,Faculty of Science,Universiti Malaya,Kuala Lumpur 50603,Malaysia [3]UM Power Energy Dedicated Advanced Centre(UMPEDAC),Level 4,Wisma R&D,Universiti Malaya,Kuala Lumpur 59990,Malaysia [4]Department of Chemistry,Saveetha School of Engineering,Institute of Medical and Technical Science,Saveetha University,Chennai 602105,Tamilnadu,India

出　　处：《Journal of Energy Chemistry》2024年第7期414-429,共16页能源化学（英文版）

基　　金：financially supported by the Ministry of Higher Education through the Fundamental Research Grant Scheme (FRGS/1/2022/STG05/UM/01/2) awarded to Ramesh T Subramaniam;by Technology Development Fund 1 (TeD1)from the Ministry of Science,Technology,and Innovation (MOSTI),Malaysia (MOSTI002-2021TED1);supported by the Key Research Program of Yichang City(2023KYPT0303)

摘　　要：Sodium-ion batteries (SIBs) have great potential to be the next major energy storage devices due to their obvious advantages and developing advanced electrodes and electrolytes is urgently necessary to promote its future industrialization.However,hard carbon as a state-of-the-art anode of SIBs still suffers from the low initial Coulomb efficiency and unsatisfactory rate capability,which could be improved by forming desirable solid electrolyte interphases (SEI) to some extent.Indeed,the chemistry and morphology of these interfacial layers are fundamental parameters affecting the overall battery operation,and optimizing the electrolyte to dictate the quality of SEI on hard carbon is a key strategy.Hence,this review summarizes the recent research on SEI design by electrolyte manipulation from solvents,salts,and additives.It also presents some potential mechanisms of SEI formation in various electrolyte systems.Besides,the current advanced characterization techniques for electrolyte and SEI structure analyses have been comprehensively discussed.Lastly,current challenges and future perspectives of SEI formation on hard carbon anode for SIBs are provided from the viewpoints of its compositions,evolution processes,structures,and characterization techniques,which will promote SEI efficient manipulation and improve the performance of hard carbon,and further contribute to the development of SIBs.

关 键 词：SEI Electrolyte optimization Hard carbon Electrochemical performance Sodium-ion batteries 

分 类 号：TM912[电气工程—电力电子与电力传动] O646.1[理学—物理化学]