2026-10-12T01:54:21Z https://www.scidb.cn/oai

10.57760/sciencedb.17306 2024-12-02T12:58:43Z

2024-12-02 Engineering the Solid Electrolyte Interphase for Enhancing High-Rate Cycling and Temperature Adaptability of Lithium-Ion Batteries doi:10.57760/sciencedb.17306 en In overcoming the barrier of rapid Li+ transfer in lithium-ion batteries under extreme temperatures, the desolvation process and interfacial charge transport play critical roles. However, tunning the solvation structure and designing kinetically-stable electrode-electrolyte interface to achieve high-rate charging and discharging remains challenges. Here, a lithium nonafluoro-1-butanesulfonate (NFSALi) additive is introduced to optimize a stability and robust solid electrolyte interface film (SEI), realizing the rapid Li+ transfer process and the structural integrity of electrode materials. The NFSALi-derived thinner, fluorine-rich, and sulfur-containing SEI in nitrile-assistant carbonate electrolytes effectively suppresses decomposition of valeronitrile solvent during high-rate cycling and wide-temperature operation (−40~55 ℃). More importantly, the graphiteǁLiNi0.5Co0.2Mn0.3O2 pouch cell demonstrates a capacity retention of 66.88% after 200 high-rate cycles with 3 C charging and 5 C discharging at a high-temperature condition of 55 °C. This work provides significant guidance to develop inorganic-rich interfacial chemistry for lithium-ion batteries under extreme operating conditions. Lithium-ion Battery; Electrolyte Additive; Lithium Nonafluoro-1-Butanesulfonate; Electrode/Electrolyte Interface. Wangzhongming He Zhiyuan Wang Zhongsheng Long Kecheng Yang Jixu Huang Shaozhen Wu Zhibin Mei Lin Chen Libao RESTRICTED dataset http://www.doi.org/10.1039/d4sc07916g Science Data Bank