Free-standing polydimethylsiloxane-based cross-linked network solid polymer electrolytes for future lithium ion battery applications

Manjit Singh Grewal, Manabu Tanaka, Hiroyoshi Kawakami

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

A series of cross-linked network solid polymer electrolytes based on dual end-functionalized polydimethylsiloxane bearing reactive thiol terminal groups with poly(ethylene glycol) diglycidyl ether and pentaerythritol tetrakis(3-mercaptopropionate) have been synthesized and characterized. The obtained results can be briefed as: ionic conductivity in the range of 1.5 × 10 −6 S cm −1 at room temperature to 1.6 × 10 −4 S cm −1 at 90 °C, lithium ion transference number ranged from 0.15 to 0.20, electrochemical window up to 5.3 V (vs. Li + /Li), thermal resistance (T d5 ca. 254.5 °C), and tensile strength (ca. 1.6 MPa at max.). The interplay taking place between structure and physico-electrochemical properties of in these systems based on merits of poly(ethylene glycol) moieties as high solvation matrix for Li + ions flexible along with smooth solid support from polydimethylsiloxane allow the tailoring of the design of polymer electrolytes for future all-solid-state lithium batteries.

Original languageEnglish
Pages (from-to)148-156
Number of pages9
JournalElectrochimica Acta
Volume307
DOIs
Publication statusPublished - 2019 Jun 1
Externally publishedYes

Keywords

  • Cross-linked network polymer
  • Ionic conductivity
  • Lithium ion batteries
  • Polydimethylsiloxane
  • Polymer electrolyte

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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