An artificial Li3PO4 solid electrolyte interphase layer to achieve petal-shaped deposition of lithium

被引：14
作者：
Bai, Maohui [1 ,2 ]
Xie, Keyu [2 ]
Hong, Bo [1 ]
Yuan, Kai [2 ]
Li, Zhihao [2 ]
Huang, Zimo [1 ]
Shen, Chao [2 ]
Lai, Yanqing [1 ]
机构：
[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China
[2] Northwestern Polytech Univ Shaanxi Joint Lab Grap, Sch Mat Sci & Engn, Ctr Nano Energy Mat, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China
来源：
SOLID STATE IONICS | 2019年 / 333卷
基金：
国家重点研发计划;
关键词：
Li metal anode; Copper phosphate; Battery; Surfaces; Dendrites; METAL; MATRIX;
D O I：
10.1016/j.ssi.2019.01.016
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Inhibiting the formation of lithium (Li) dendrites for Li metal anode is of great significance to the practical application of high-energy-density battery systems. Herein, we report an artificial Li3PO4 solid electrolyte interphase (SEI) layer on a Li metal anode (LPO-Li) which fabricated by the spontaneous redox reaction of the Li metal and copper phosphate (Cu-3(PO4)(2)) in tetrahydrofuran (THF) organic solvent at room temperature. This stable Li3PO4 layer can act as a protective layer between the metallic Li and electrolyte to prevent side effects during cycling. The Li metal anode with the Li3PO4 layer can acquire optimize deposition of Li and enable a stable and prolonged cycling without formation of Li dendrites. When matching the LiNi0.6Co0.2Mn0.2O2 (NCM) cathode, the NCM/LPO-Li battery presents an excellent electrochemical performance.
引用
收藏
页码：101 / 104
页数：4
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