Chlorine-rich lithium argyrodites enables superior performances for solid-state Li–Se batteries at wide temperature range

Lin，Jin Yan1; Chen，Shuai1,2; Li，Jia Yang1; Yu，Dian1; Xu，Xiang Ling1; Yu，Chuang1; Chen，Shao Qing3; Miao，Xue Fei4; Peng，Lin Feng1; Wei，Chao Chao1; Liu，Chong Xuan5; Cheng，Shi Jie1; Xie，Jia1

2022

10.1007/s12598-022-02093-z

RARE METALS   影响因子和分区

1001-0521

1867-7185

All-solid-state Li–Se battery shows great potential as a candidate for next-generation energy storage devices due to its high energy density and safety. However, the low ionic conductivity of the solid electrolytes and large volume changes of Se active materials are two of the major issues that limit its applications. Herein, a simple solid-state reaction method is applied to synthesize chlorine-rich argyrodite LiPSCl electrolyte with high conductivity of 6.25 mS·cm at room temperature. Carbon nanotube (CNT) is introduced as the host for Se to obtain Se/CNT composite with both enhanced electronic conductivity and lower volume expansion during the electrochemical reaction process. All-solid-state Li–Se battery using LiPSCl as solid electrolyte combined with Se/CNT cathode and Li-In anode shows a discharge capacity of 866 mAh·g for the 2nd cycle under 0.433 mA·cm at room temperature. Moreover, the assembled battery delivers a high discharge capacity of 1026 mAh·g for the 2nd cycle when cycled at the same current density at 60 °C and maintains a discharge capacity of 380 mAh·g after 150 cycles. Owing to the high Li-ion conductivity of LiPSCl electrolyte, the assembled battery displays a high discharge capacity of 344 mAh·g under 0.113 mA·cm at − 20 °C and remains 66.1% after 200 cycles. In addition, this all-solid-state Li–Se battery shows ultralong cycling performances up to 1000 cycles under 0.433 mA·cm at − 20 °C. This work offers the design clue to fabricate the all-solid-state Li–Se battery workable at different operating temperatures with an ultralong cycling life. Graphical abstract: [Figure not available: see fulltext.].

All-solid-state Li–Se batteries Chlorine-rich Lithium argyrodite Long cycling performances Operating temperatures

SCI

英语

其他

National Key Research and Development Program[2021YFB2400300] ; National Natural Science Foundation of China[52177214] ; Certificate of China Post-doctoral Science Foundation[2019M652634]

Materials Science ; Metallurgy & Metallurgical Engineering

Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000859732000003

NONFERROUS METALS SOC CHINA

MATERIALS SCIENCE

2-s2.0-85138761773

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 Materials,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
4.Key Laboratory of Advanced Metallic and Intermetallic Materials Technology,School of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing,210094,China
5.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Lin，Jin Yan,Chen，Shuai,Li，Jia Yang,等. Chlorine-rich lithium argyrodites enables superior performances for solid-state Li–Se batteries at wide temperature range[J]. RARE METALS,2022.

Lin，Jin Yan.,Chen，Shuai.,Li，Jia Yang.,Yu，Dian.,Xu，Xiang Ling.,...&Xie，Jia.(2022).Chlorine-rich lithium argyrodites enables superior performances for solid-state Li–Se batteries at wide temperature range.RARE METALS.

Lin，Jin Yan,et al."Chlorine-rich lithium argyrodites enables superior performances for solid-state Li–Se batteries at wide temperature range".RARE METALS (2022).