Ag-modification argyrodite electrolytes enable high-performance for all-solid-state lithium metal batteries

Wu，Zhongkai1,2; Yu，Chuang1,2; Wei，Chaochao1,2; Jiang，Ziling1,2; Liao，Cong1,2; Chen，Shuai1,2; Chen，Shaoqing3; Peng，Linfeng1,2; Cheng，Shijie1,2; Xie，Jia1,2

2023-06-15

10.1016/j.cej.2023.143304

Chemical Engineering Journal   影响因子和分区

1385-8947

1873-3212

Solid-state batteries combined with high-voltage layered cathode and lithium metal anode display good safety and high energy density, showing great potential as next-generation energy storage devices. However, the low ionic conductivity and poor stability with lithium metal of most solid electrolytes inhibit the development of solid-state lithium metal batteries. Herein, Ag is successfully integrated into LiPSCl structure with improved ionic conductivity and better lithium metal stability for the yielded LiAgPSCl (x = 0, 0.02, 0.05, 0.10) electrolytes. Ag dopant is carefully tailored to achieve the optimal LiAgPSCl electrolyte with a high Li-ion conductivity of up to 9.1 mS cm and a large CCD value of 1.8 mA cm. The corresponding battery with LiNiMnCoO cathode and Li-In anode delivers a high initial discharge capacity of 154.9 mAh g at 1.0C and maintains 94.5% of this value after 100 cycles. However, the same cathode shows low discharge capacities and fast degradation of capacities with bare lithium metal anode in solid-state batteries. A facial 3D host lithium metal with Ag and LiNO particles on the surface is designed as the anode for this battery, showing much higher capacities and superior cyclability at different C-rates. The corresponding battery delivers discharge capacities of 140.6 mAh g and 105.4 mAh g when cycled at 0.1C and 0.5C. These superior electrochemical performances are attributed to the dual modification of Ag both in solid electrolytes and lithium metal anodes.

3D lithium metal anode Ag-modification All-solid-state lithium metal batteries Argyrodite electrolytes Electrochemical performances Lithium compatibility

SCI ; EI

英语

其他

National Key Research and Development Program[2021YFB2500200] ; National Natural Science Foundation of China[52177214]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:001006636100001

ELSEVIER SCIENCE SA

20231914059197

Anodes ; Binary alloys ; Cathodes ; Chlorine compounds ; Cobalt compounds ; Display devices ; Electric discharges ; Ionic conduction in solids ; Ionic conductivity ; Lithium compounds ; Lithium-ion batteries ; Manganese compounds ; Phosphorus compounds ; Potentiometric sensors ; Solid state devices ; Solid-State Batteries ; Sulfur compounds

Electricity: Basic Concepts and Phenomena:701.1 ; Secondary Batteries:702.1.2 ; Electron Tubes:714.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Computer Peripheral Equipment:722.2 ; Chemical Agents and Basic Industrial Chemicals:803

ENGINEERING

2-s2.0-85156204995

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,518055,China

Wu，Zhongkai,Yu，Chuang,Wei，Chaochao,et al. Ag-modification argyrodite electrolytes enable high-performance for all-solid-state lithium metal batteries[J]. Chemical Engineering Journal,2023,466.

Wu，Zhongkai.,Yu，Chuang.,Wei，Chaochao.,Jiang，Ziling.,Liao，Cong.,...&Xie，Jia.(2023).Ag-modification argyrodite electrolytes enable high-performance for all-solid-state lithium metal batteries.Chemical Engineering Journal,466.

Wu，Zhongkai,et al."Ag-modification argyrodite electrolytes enable high-performance for all-solid-state lithium metal batteries".Chemical Engineering Journal 466(2023).