石墨负极界面SEI膜与锂离子电池热失控

张佳怡, 翁素婷, 王兆翔, 王雪锋

Solid electrolyte interphase （SEI） on graphite anode correlated with thermal runaway of lithium-ion batteries

Jiayi ZHANG, Suting WENG, Zhaoxiang WANG, Xuefeng WANG

图1 (a) 在石墨负极上形成SEI膜的示意图[22]；(b) 正负极SEI膜的形成热力学，其中 μe-,Anode 和 μe-,Cathode 分别为负极和正极的电化学势，电解质的稳定窗口是LUMO和HOMO的能量之差，表示为 Eg[30]；(c) 定性描述热失控过程中的连锁反应[5]

Fig. 1 (a) Schematic of SEI formation on graphite anode[22]; (b) Thermodynamics of SEI formation on anode and cathode, where μe-,Anode and μe-,Cathode are the electrochemical potentials of the anode and cathode respectively, and the stability window of the electrolyte is the difference between the energies of LUMO and HOMO, expressed as Eg[30]; (c) Qualitative description of chain reactions during thermal runaway[5]