In Situ Construction of An Ultra-Stable Conductive Composite Interface for High-Voltage All-Solid-State Lithium Metal Batteries

Shi, Kai1; Wan, Zipei1; Yang, Lu2; Zhang, Yiwen2; Huang, Yanfei1; Su, Shiming1; Xia, Heyi1; Jiang, Keling1; Shen, Lu1; Hu, Yi1; Zhang, Shiqi1; Yu, Jing1; Ren, Fuzeng2; He, Yan-Bing1; Kang, Feiyu1

2020-05-18

10.1002/anie.202000547

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   影响因子和分区

1433-7851

1521-3773

The garnet electrolyte presents poor wettability with Li metal, resulting in an extremely large interfacial impedance and drastic growth of Li dendrites. Herein, a novel ultra-stable conductive composite interface (CCI) consisting of LiySn alloy and Li3N is constructed in situ between Li6.4La3Zr1.4Ta0.6O12 (LLZTO) pellet and Li metal by a conversion reaction of SnNx with Li metal at 300 degrees C. The LiySn alloy as a continuous and robust bridge between LLZTO and Li metal can effectively reduce the LLZTO/Li interfacial resistance from 4468.0 omega to 164.8 omega. Meanwhile, the Li3N as a fast Li-ion channel can efficiently transfer Li ions and give their uniform distribution at the LLZTO/Li interface. Therefore, the Li/LLZTO@CCI/Li symmetric battery stably cycles for 1200 h without short circuit, and the all-solid-state high-voltage Li/LLZTO@CCI/LiNi0.5Co0.2Mn0.3O2 battery achieves a specific capacity of 161.4 mAh g(-1) at 0.25 C with a capacity retention rate of 92.6 % and coulombic efficiency of 100.0 % after 200 cycles at 25 degrees C.

lithium metal batteries Li3N LiySn alloy SnNx solid-state electrolytes

SCI ; EI

英语

ESI高被引 ; NI期刊 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; ESI高被引 ; NI论文

通讯

National Natural Science Foundation of China[51672156] ; Local Innovative Research Teams Project of Guangdong Pearl River Talents Program[2017BT01N111] ; Guangdong Province Technical Plan Project[2017B010119001] ; Shenzhen Technical Plan Project[JCYJ20180508152210821][JCYJ20170817161221958][JCYJ20180508152135822] ; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2018B030322001] ; Shenzhen Graphene Manufacturing Innovation Center[201901161513]

Chemistry

Chemistry, Multidisciplinary

WOS:000533322400001

WILEY-V C H VERLAG GMBH

20202108705651

Lithium alloys ; Lithium ; Solid electrolytes ; Tin alloys ; Interface states ; Solid-State Batteries ; Binary alloys

Lithium and Alloys:542.4 ; Tin and Alloys:546.2 ; Alkali Metals:549.1 ; Secondary Batteries:702.1.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Classical Physics; Quantum Theory; Relativity:931 ; High Energy Physics; Nuclear Physics; Plasma Physics:932

CHEMISTRY

Web of Science

1.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen Geim Graphene Ctr, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Shi, Kai,Wan, Zipei,Yang, Lu,et al. In Situ Construction of An Ultra-Stable Conductive Composite Interface for High-Voltage All-Solid-State Lithium Metal Batteries[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2020,59(29):11784-11788.

Shi, Kai.,Wan, Zipei.,Yang, Lu.,Zhang, Yiwen.,Huang, Yanfei.,...&Kang, Feiyu.(2020).In Situ Construction of An Ultra-Stable Conductive Composite Interface for High-Voltage All-Solid-State Lithium Metal Batteries.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,59(29),11784-11788.

Shi, Kai,et al."In Situ Construction of An Ultra-Stable Conductive Composite Interface for High-Voltage All-Solid-State Lithium Metal Batteries".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 59.29(2020):11784-11788.