journal article·2021-09-10

Stabilization of NASICON-Type Electrolyte against Li Anode via an Ionic Conductive MOF-Incorporated Adhesive Interlayer

Ruo Zhao, Lei Gao, Manrong Song, Yu Ye, Zibin Liang, Juncao Bian, Jinlong Zhu, Shuai Li, Ruqiang Zou, Yusheng Zhao

ACS Energy Letters· Volume 6· Issue 9
Publisher page

Abstract

Sodium superionic conductor (NASICON)-type electrolytes with high ionic conductivity and moisture/air stability are essential for solid-state batteries. However, they generally suffer from poor electrochemical stability and insufficient contact against Li metal, causing severe performance degradation. To address this challenge, an ionic conductive metal–organic framework (MOF)-incorporated polymeric layer (denoted as ZCPL) is prepared and used as the coating layer of Li1.5Al0.5Ge1.5(PO4)3 (LAGP). As a protective layer, ZCPL can effectively prevent the redox reaciton between LAGP and Li metal, eliminating the formation of detrimental interphases and cracks upon battery cycling. The adhesive ZCPL can also infiltrate into the void/gaps of the LAGP surface, generating a firm connection with intimate contact. Besides, ZCPL with good ionic conductivity and a soft texture provides rich pathways for fast Li+ transport and ensures a uniform Li+ flow through the interface. Benefiting from ZCPL, both the Li symmerical cell and Li/LiFePO4 full cell show long-term cycling stability.
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Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Shenzhen Key Laboratory of Solid State Batteries, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China

Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China

Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, School of Materials Science and Engineering, Peking University, Beijing 100871, China

Funding

Guangdong Science and Technology Department · National Natural Science Foundation of China · Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology · Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices · Shenzhen Key Laboratory of Solid State Batteries, Southern University of Science and Technology · Shenzhen Science and Technology Program

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