Garnet Solid Electrolyte Protected Li-Metal Batteries

ACS Applied Materials & Interfaces
Boyang LiuLiangbing Hu

Abstract

Garnet-type solid state electrolyte (SSE) is a promising candidate for high performance lithium (Li)-metal batteries due to its good stability and high ionic conductivity. One of the main challenges for garnet solid state batteries is the poor solid-solid contact between the garnet and electrodes, which results in high interfacial resistance, large polarizations, and low efficiencies in batteries. To address this challenge, in this work gel electrolyte is used as an interlayer between solid electrolyte and solid electrodes to improve their contact and reduce their interfacial resistance. The gel electrolyte has a soft structure, high ionic conductivity, and good wettability. Through construction of the garnet/gel interlayer/electrode structure, the interfacial resistance of the garnet significantly decreased from 6.5 × 104 to 248 Ω cm2 for the cathode and from 1.4 × 103 to 214 Ω cm2 for the Li-metal anode, successfully demonstrating a full cell with high capacity (140 mAh/g for LiFePO4 cathode) over 70 stable cycles in room temperature. This work provides a binary electrolyte consisting of gel electrolyte and solid electrolyte to address the interfacial challenge of solid electrolyte and electrodes and the demonstrated hybrid b...Continue Reading

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Citations

Jul 29, 2017·Chemical Reviews·Xin-Bing ChengQiang Zhang
Nov 30, 2019·Materials·Alain MaugerKarim Zaghib
May 28, 2019·Angewandte Chemie·Jingning LaiRenjie Chen
May 28, 2020·Frontiers in Chemistry·Zhongliang HuYirong Zhu
Oct 11, 2017·Angewandte Chemie·Kun Kelvin FuLiangbing Hu
Jul 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Jinhua HongYuichi Ikuhara
May 31, 2019·ACS Applied Materials & Interfaces·Syed Atif PervezMaximilian Fichtner
Jul 11, 2018·ACS Applied Materials & Interfaces·Bizhu ZhengYong Yang
Oct 17, 2019·ACS Applied Materials & Interfaces·Michael NaguibJagjit Nanda
Mar 12, 2020·ACS Applied Materials & Interfaces·Linchao ZhangQianfeng Fang
Nov 13, 2020·ACS Applied Materials & Interfaces·Huanan DuanHezhou Liu
Apr 10, 2020·Chemical Reviews·Chengwei WangLiangbing Hu
Aug 14, 2020·ACS Applied Materials & Interfaces·Ying WeiYunhui Huang
Jul 1, 2020·Chemical Reviews·Abhik BanerjeeYing Shirley Meng
Oct 9, 2020·ACS Applied Materials & Interfaces·Zizheng TongRu-Shi Liu
Jan 9, 2020·ACS Applied Materials & Interfaces·Bo WangYongzhu Fu
Nov 20, 2020·ACS Applied Materials & Interfaces·Waquar Ahmed KhokharXiangxin Guo
Dec 22, 2021·ACS Applied Materials & Interfaces·Wuliang FengYongyao Xia

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