Preparation of a trilayer separator and its application to lithium-ion batteries

Min Kim, Gui Young Han, Ki June Yoon, Jong Hyeok Park

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Inorganic particulate film/poly(methyl methacrylate) (PMMA)/inorganic particulate film trilayer separators are prepared by means of simple dip-coating of inorganic particle layers on to both sides of PMMA thin films. The mechanical, thermal and electrochemical characteristics of the trilayer are investigated using scanning electron microscopy, a universal tensile machine, a thermal shrinkage test and a charge-discharge test. As a polymer matrix, PMMA has exceptional compatibility with the carbonate-based liquid electrolyte, which can result in improved battery/cell performance. When inorganic Al 2O3 particles are used to coat the PMMA film, drawbacks associated with gel-type membranes, namely, poor dimensional stability and thermal stability are greatly improved. This inorganic trilayer membrane is believed to be an inexpensive, novel separator for application in lithium-ion batteries.

Original languageEnglish
Pages (from-to)8302-8305
Number of pages4
JournalJournal of Power Sources
Volume195
Issue number24
DOIs
Publication statusPublished - 2010 Aug 4

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Preparation of a trilayer separator and its application to lithium-ion batteries'. Together they form a unique fingerprint.

  • Cite this