Title:
MANUFACTURE OF SEPARATOR FOR BATTERY
Document Type and Number:
Japanese Patent JP3422496
Kind Code:
B
Abstract:
PURPOSE: To provide a separator for a battery preventing generation of overheat and thermo-runaway.
CONSTITUTION: A method for obtaining a predetermined micro porous multi- layer sheetlike product capable of being non-porous at an increased conversion temperature is performed by first manufacturing a non-porous multi-layer initial sheet product having at least one first/second layer having a viscosity profile of each itself. Next, this initial sheetlike product is extended and annealed, so as to provide porosity to the sheet-shaped product.
Inventors:
Troffkin, Howard J.
Rein, Burton M.
Spotnitz, Robert M.
Giovannoni, Richard T.
Guo, Yihong
Rein, Burton M.
Spotnitz, Robert M.
Giovannoni, Richard T.
Guo, Yihong
Application Number:
JP1992000025850
Publication Date:
April 25, 2003
Filing Date:
January 17, 1992
Export Citation:
Assignee:
WR GRACE & CO CONNECTICUT
International Classes:
B02C13/18; B02C13/06; B02C13/286; B02C19/00; B02C23/00; B02C23/02; C08J9/26; C08J9/28; H01M2/16; (IPC1-7): H01M2/16; B23B5/32