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Polymer lithium-garnet interphase for an all-solid-state rechargeable battery

  • Weidong Zhou
  • , Ye Zhu
  • , Nicholas Grundish
  • , Xin Sen Xin
  • , Shaofei Wang
  • , Ya You
  • , Nan Wu
  • , Jian Gao
  • , Zhiming Cui
  • , Yutao Li
  • , John B. Goodenough

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Garnet electrolytes having a room-temperature Li+ conductivity of 10−3 S cm−1 suffer from adsorbents that prevent wetting by a lithium anode; formation and growth of lithium-anode dendrites into grain boundaries and a huge interfacial resistance to anode plating and stripping result. A thin coating of a garnet surface by a Li+-conducting polymer with a transfer number of 0.9 is shown to suppress dendrite formation and to reduce greatly the interfacial resistance. A coulombic efficiency near 100% with a single thin polymer coat can provide Li/garnet/LiFePO4 all-solid-state cell with a long cycle life.

Original languageEnglish
Pages (from-to)926-931
Number of pages6
JournalNano Energy
Volume53
DOIs
Publication statusPublished - Nov 2018

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Cycle life
  • Garnet electrolyte
  • Lithium rechargeable batteries
  • Polymer interphase

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • General Materials Science
  • Electrical and Electronic Engineering

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