锂离子电池产气机制及基于电解液的抑制策略

徐冲, 徐宁, 蒋志敏, 李中凯, 胡洋, 严红, 马国强

Mechanisms of gas evolution and suppressing strategies based on the electrolyte in lithium-ion batteries

Chong XU, Ning XU, Zhimin JIANG, Zhongkai LI, Yang HU, Hong YAN, Guoqiang MA

图7 (a) LiPF6 水解产生的HF[53]；(b) 除水抑酸类电解液添加剂作用机制；(c) 亚磷酸酯和含硼化合物作为添加剂吸附电解液中O2 和?O2-[53]

Fig. 7 (a) HF arisen from the hydrolysis of LiPF6[53]; (b) Mechanism of electrolyte additives scavenging H2O and HF in electrolyte; (c) Phosphite and borane as additives scavenging O2 or ·O2-in electrolyte[53]