Title:
MANUFACTURING METHOD OF BATTERY CELL, AND BATTERY SEPARATOR
Document Type and Number:
Japanese Patent JP3502370
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a battery cell having a separator which has more excellent strength than the strength of conventional microporous film separator.
SOLUTION: The battery cell having a positive electrode sheet, a negative electrode sheet, and a separator sheet lying between the above, is manufactured by (a) preparing a roll of a cross layer separator, having the first and the second layers of a uniaxially oriented microporous film of which the direction of uniaxial orientation of the first film and the second film are biased from each other; (b) forming an inner composite battery cell structure by laying the cross layer separator between continuously extended positive electrode sheet and negative electrode sheet; (c) winding or folding the inner composite battery cell structure; and (d) mounting the wound or folded inner battery cell complex structure to the battery cell housing of outside.
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Inventors:
Way-Ching You
Carlton F Dougins
Carlton F Dougins
Application Number:
JP2001309710A
Publication Date:
March 02, 2004
Filing Date:
December 22, 1995
Export Citation:
Assignee:
CELGARD INC.
International Classes:
B29C55/02; B29C55/06; B29C70/04; B29C70/06; B32B5/32; B32B27/32; H01M6/16; H01M50/403; H01M50/417; H01M50/449; B29K23/00; B29L9/00; H01M6/50; (IPC1-7): H01M2/16; B32B5/32; B32B27/32; H01M6/16; H01M10/40
Domestic Patent References:
| JP278163A | ||||
| JP6372063A | ||||
| JP5626105B1 |
Attorney, Agent or Firm:
Takehiko Saito (1 outside)