Trilayer battery separator

Chemistry: electrical current producing apparatus – product – and – With control means responsive to battery condition sensing... – Temperature control

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Details

429145, 156163, 26417311, 4283159, H01M 216

Patent

active

060805072

ABSTRACT:
A trilayer shutdown battery separator is provided having two strength layers sandwiching a shutdown layer that is made by a particle stretch method. The preferred method of making such a trilayer separator comprises: making microporous strength layers; forming a microporous shutdown layer by a particle stretch method; and bonding two microporous strength layers and one microporous shutdown layer into the trilayer battery separator wherein the first and third layers are strength layers, and the second membrane is a microporous shutdown layer made by a particle stretch method.

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U.S. Application Serial No. 08/896,513, filed Jun. 22, 1997 entitled Ultra-thin, Single-ply Battery Separator; Inventor: Wei-Ching Yu; application consisting of 12 pages and 0 sheets of drawings.
U.S. Continuation Application Serial No. 08/650,210; filed May 20, 1996 entitled Shutdown, Trilayer Battery Separator; Inventor: Wei-Ching Yu; application consisting of 27 pgs. and 2 sheets of drawings.

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