Ag/Br dual-doped Li6PS5Br electrolyte with superior conductivity for all-solid-state batteries

Jiang，Ziling1,2; Yu，Chuang1; Chen，Shaoqing3; Wei，Chaochao1; Liao，Cong1; Wu，Zhongkai1; Chen，Shuai1; Cheng，Shijie1; Xie，Jia1

2023-04-01

10.1016/j.scriptamat.2023.115303

SCRIPTA MATERIALIA   影响因子和分区

1359-6462

1872-8456

Lithium argyrodites electrolyte with high ionic conductivity and relatively lower cost show great potential as candidates for solid-state batteries. Further improvement of their conductivities can accelerate their applications. One of the means to significantly promote the conductivity of Li-ion is dual doping. Herein, Ag/Br dual-doping strategy is applied on LiPSBr (2.76 mS cm) to boast its conductivity to 6.15 mS cm for LiAgPSBr. The structural variations and chemical/electrochemical stability of the obtained electrolyte are carefully investigated. LiInCl electrolyte is introduced in the new battery configuration to mitigate the interfacial instability with LiNiMnCoO active material enabling good electrochemical performances. The assembled battery delivers a discharge capacity of 160.8 mAh g for the 1st cycle and maintains 85.9% of the initial value after 50 cycles at 0.5C. This modification strategy was proved effective for increasing the conductivity of sulfide electrolytes in this work.

Ag/Br dual-doping Ionic conductivity Li6PS5Br Solid electrolytes Solid-state batteries

SCI ; EI

英语

其他

National Key Research and Development Program[2021YFB2500200] ; National Natural Science Foundation of China[52177214] ; Department of Science and Technology of Guangdong Province[2017ZT07Z479] ; China Fujian Energy Devices Science and Technology Innovation Laboratory Open Fund[21C-OP202211]

Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000995062200001

PERGAMON-ELSEVIER SCIENCE LTD

20230313382061

Bromine compounds ; Chemical stability ; Cobalt compounds ; Electric discharges ; Ionic conduction in solids ; Ionic conductivity ; Lithium ; Lithium compounds ; Lithium-ion batteries ; Manganese compounds ; Nickel compounds ; Phosphorus compounds ; Silver compounds ; Solid electrolytes ; Solid state devices ; Solid-State Batteries

Lithium and Alloys:542.4 ; Alkali Metals:549.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Secondary Batteries:702.1.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Chemistry:801 ; Chemical Agents and Basic Industrial Chemicals:803

MATERIALS SCIENCE

2-s2.0-85146098582

Scopus

1.State Key Laboratory of Advanced Electromagnetic Engineering and Technology,School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan,430074,China
2.School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan,430074,China
3.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Jiang，Ziling,Yu，Chuang,Chen，Shaoqing,et al. Ag/Br dual-doped Li6PS5Br electrolyte with superior conductivity for all-solid-state batteries[J]. SCRIPTA MATERIALIA,2023,227.

Jiang，Ziling.,Yu，Chuang.,Chen，Shaoqing.,Wei，Chaochao.,Liao，Cong.,...&Xie，Jia.(2023).Ag/Br dual-doped Li6PS5Br electrolyte with superior conductivity for all-solid-state batteries.SCRIPTA MATERIALIA,227.

Jiang，Ziling,et al."Ag/Br dual-doped Li6PS5Br electrolyte with superior conductivity for all-solid-state batteries".SCRIPTA MATERIALIA 227(2023).