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Battery separator for lithium polymer battery

  • US 20040241550A1
  • Filed: 05/28/2003
  • Published: 12/02/2004
  • Est. Priority Date: 05/28/2003
  • Status: Abandoned Application
First Claim
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1. A battery separator for a lithium battery comprises a microporous membrane, and a coating thereon, said coating being made from a mixture comprising a gel forming polymer, a first solvent and a second solvent, the first solvent being more volatile than the second solvent, and said second solvent adapted to form pores in the gel-forming polymer.

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