宽温域、高电压、安全无EC电解液研究进展

刘志浩, 杜童, 李瑞瑞, 邓涛

Developments of wide temperature range， high voltage and safe EC-free electrolytes

Zhihao LIU, Tong DU, Ruirui LI, Tao DENG

图8 高电压失效机制 (a) 富镍正极与含EC和不含EC电解液的降解途径示意图；(b) 基于EC电解液失效机制 [73]；(c) 抑制镍离子溶解对SEI膜形态影响的示意图[40]

Fig. 8 High voltage Failure Mechanisms. (a) Schematic illustration of the proposed degradation pathways for Ni-rich cathodes with EC-containing and EC-free electrolytes; (b) Mechanism of rollover fading of EC-based electrolyte[73]; (c) Schematics showing the effect of the suppressed nickel ions dissolution on the morphology of the anode SEI layer[40]