Temperature-dependent compatibility study on halide solid-state electrolytes in solid-state batteries

Gaoshuai Jia; Zhi Deng; Dixing Ni; Zhaoran Ji; Diancheng Chen; Xinxin Zhang; Tao Wang; Tao Wang; Shuai Li; Yusheng Zhao

doi:10.3389/fchem.2022.952875

Frontiers in Chemistry (Aug 2022)

Temperature-dependent compatibility study on halide solid-state electrolytes in solid-state batteries

Gaoshuai Jia,
Zhi Deng,
Dixing Ni,
Zhaoran Ji,
Diancheng Chen,
Xinxin Zhang,
Tao Wang,
Tao Wang,
Shuai Li,
Yusheng Zhao

Affiliations

Gaoshuai Jia: Department of Physics and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, China
Zhi Deng: Department of Physics and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, China
Dixing Ni: Department of Physics and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, China
Zhaoran Ji: Department of Physics and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, China
Diancheng Chen: Department of Physics and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, China
Xinxin Zhang: 21C Innovation Laboratory, Contemporary Amperex Technology Ltd. (CATL), Ningde, China
Tao Wang: School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, China
Tao Wang: Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology, Dongguan, China
Shuai Li: Department of Physics and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, China
Yusheng Zhao: Department of Physics and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, China

DOI: https://doi.org/10.3389/fchem.2022.952875
Journal volume & issue: Vol. 10

Abstract

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All-solid-state lithium batteries (ASSLBs) have attracted much attention owing to their high safety and energy density compared to conventional organic electrolytes. However, the interfaces between solid-state electrolytes and electrodes retain some knotty problems regarding compatibility. Among the various SSEs investigated in recent years, halide SSEs exhibit relatively good interfacial compatibility. The temperature-dependent interfacial compatibility of halide SSEs in solid-state batteries is investigated by thermal analysis using simultaneous thermogravimetry and differential scanning calorimetry (TG–DSC) and X-ray diffraction (XRD). Halide SSEs, including rock-salt-type Li3InCl6 and anti-perovskite-type Li2OHCl, show good thermal stability with oxides LiCoO2, LiMn2O4, and Li4Ti5O12 up to 320 °C. Moreover, anti-perovskite-type Li2OHCl shows a chemical reactivity with other battery materials (eg., LiFePO4, LiNi0.8Co0.1Mn0.1O2, Si-C, and Li1.3Al0.3Ti1.7(PO4)3) at 320°C, which reaches the melting point of Li2OHCl. It indicated that Li2OHCl has relatively high chemical reactivity after melting. In contrast, rock-salt-type Li3InCl6 shows higher stability and interfacial compatibility. This work delivers insights into the selection of suitable battery materials with good compatibility for ASSLBs.

Published in Frontiers in Chemistry

ISSN: 2296-2646 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: http://journal.frontiersin.org/journal/chemistry

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