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一种长循环硝酸酯电解液及锂金属电池
InventionUnknown
10Claims · 3 independent
§ Ⅰ
Dossier Overview
Inventor
周飞; 刘倩; 周莉莎; 何俊; 张跃钢
Filing Date
Apr 3, 2025
Publication Date
Oct 16, 2026
IPC Classification
H01M 10/0569 (2010.01)H01M 10/0567 (2010.01)H01M 10/052 (2010.01)H01M 10/42 (2006.01)
本发明公开了一种长循环硝酸酯电解液及锂金属,属于锂金属电池技术领域,所述长循环硝酸酯电解液包括非水溶剂、锂盐和稀释剂;所述锂盐占电解液的摩尔百分比为6~30%,非水溶剂占电解液的摩尔百分比为10~70%,本发明以氟代乙基硝酸酯为溶剂,其含有的硝酸酯官能团可以在金属锂负极表面生成富含L i NO和L iN的固态电解质界面,同时氟化基团会促进生成含氟的SE I结构,有效改善锂金属负极表面锂沉积和脱出的均匀性,抑制锂枝晶的产生,相较于传统的碳酸酯电解液,该电解液改善了锂金属负极枝晶生长的问题,从而提高了锂金属电池的长循环稳定性和安全性。
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