In-Situ Intermolecular Interaction in Composite Polymer Electrolyte for Ultralong Life Quasi-Solid-State Lithium Metal Batteries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

4 Scopus Citations
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Author(s)

  • Jieying Hu
  • Yangqian Zhang
  • Huiwen Yang
  • Yingying Liu
  • Wenchao Liao
  • Dazhu Chen
  • Chengzhu Liao
  • Xin Cheng
  • Zhouguang Lu
  • Jun He
  • Jiaoning Tang
  • Chen Liu

Detail(s)

Original languageEnglish
Pages (from-to)12116-12123
Journal / PublicationAngewandte Chemie - International Edition
Volume60
Issue number21
Online published15 Mar 2021
Publication statusPublished - 17 May 2021

Abstract

Solid-state lithium metal batteries built with composite polymer electrolytes using cubic garnets as active fillers are particularly attractive owing to their high energy density, easy manufacturing and inherent safety. However, the uncontrollable formation of intractable contaminant on garnet surface usually aggravates poor interfacial contact with polymer matrix and deteriorates Li+ pathways. Here we report a rational designed intermolecular interaction in composite electrolytes that utilizing contaminants as reaction initiator to generate Li+ conducting ether oligomers, which further emerge as molecular cross-linkers between inorganic fillers and polymer matrix, creating dense and homogeneous interfacial Li+ immigration channels in the composite electrolytes. The delicate design results in a remarkable ionic conductivity of 1.43 × 10−3 S cm−1 and an unprecedented 1000 cycles with 90 % capacity retention at room temperature is achieved for the assembled solid-state batteries.

Research Area(s)

  • batteries, electrochemistry, interfaces, lithium, ring-opening polymerization

Citation Format(s)

In-Situ Intermolecular Interaction in Composite Polymer Electrolyte for Ultralong Life Quasi-Solid-State Lithium Metal Batteries. / He, Kangqiang; Cheng, Samson Ho-Sum; Hu, Jieying; Zhang, Yangqian; Yang, Huiwen; Liu, Yingying; Liao, Wenchao; Chen, Dazhu; Liao, Chengzhu; Cheng, Xin; Lu, Zhouguang; He, Jun; Tang, Jiaoning; Li, Robert K. Y.; Liu, Chen.

In: Angewandte Chemie - International Edition, Vol. 60, No. 21, 17.05.2021, p. 12116-12123.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review