石墨负极界面<strong>SEI</strong>膜与锂离子电池热失控

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6 SEI膜调控策略总结 (a) 调控电解液组分，例如调节碳酸酯HOMO-LUMO的相对大小^[5]；(b) 在负极电极内引入添加剂，例如通过硫的添加，原位构建具有高Li⁺ 导电性的SEI膜^[57]；(c) 无机包覆层，例如MoO _x -MoP _x 包覆石墨的示意图^[58]；(d) 有机包覆层，促进Li⁺ 在电解质和石墨负极之间传输的聚合物SEI膜^{[4, 59]}

Fig. 6 Summary of SEI regulation strategies (a) regulating the composition of the electrolyte, such as adjusting the HOMO-LUMO of solvents^[5]; (b) Incorporating additives into the anode facilitating the in-situ construction of SEI with high Li⁺ conductivity, such as sulfur element^[57]; (c) Inorganic coating layer, such as MoO _x -MoP _x coated graphite^[58]; (d) Organic coating layer, such as the polymer SEI that promotes the transport of Li⁺ between electrolyte and graphite anode^{[4, 59]}