Natural halloysite nano-clay electrolyte for advanced all-solid-state lithium-sulfur batteries

Yue Lin, Xuming Wang, Jin Liu, Jan D. Miller

Research output: Contribution to journalArticle

  • 8 Citations

Abstract

Solid polymer electrolytes (SPEs) show increasing potential for application in high energy lithium sulfur batteries due to good flexibility and high safety. However, low room temperature ionic conductivity of SPEs has become the main limitation. Herein, a novel SPE film using natural halloysite nano-clay has been fabricated, which exhibits exceptional ionic conductivity of 1.11×10−4 S cm−1 and lithium ion transference number of 0.40 at 25 °C. The mechanism of enhanced lithium ion transport is considered. The oppositely charged halloysite nanotube surfaces separate lithium salt into lithium ions that are absorbed on the negatively charged outer silica surface, and anions may be accommodated on the positively charged inner aluminol surface. So, an ordered 3D structure for free lithium ion transport is suggested. This potential application of the natural halloysite nano-clay has been demonstrated by an all-solid-state lithium-sulfur battery over a wide temperature range of 25–100 °C. These results reveal the possibility of realizing sustainable high energy storage at a reduced cost.

LanguageEnglish (US)
Pages478-485
Number of pages8
JournalNano Energy
Volume31
DOIs
StatePublished - Jan 1 2017

Fingerprint

Lithium
Electrolytes
Clay
Ions
Polymers
Ionic conductivity
Silicon Dioxide
Energy storage
Nanotubes
Anions
Negative ions
Salts
Silica
clay
Lithium sulfur batteries
Temperature
Costs

Keywords

  • Flexible film
  • Halloysite nanotube
  • Lithium-sulfur battery
  • Nano-clay
  • Solid polymer electrolyte

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

Cite this

Natural halloysite nano-clay electrolyte for advanced all-solid-state lithium-sulfur batteries. / Lin, Yue; Wang, Xuming; Liu, Jin; Miller, Jan D.

In: Nano Energy, Vol. 31, 01.01.2017, p. 478-485.

Research output: Contribution to journalArticle

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