Title:
微小孔性膜及びその製造及び使用
Document Type and Number:
Japanese Patent JP2011503247
Kind Code:
A
Abstract:
The present invention relates to a particular multi-layer microporous membrane having a good balance of important properties, including excellent electrochemical stability and low heat shrinkage, while maintaining high permeability and heat resistance, with good mechanical strength, compression resistance and electrolytic solution absorption. The multi-layer microporous membrane of the present invention can be produced by layering, such as for example by coextrusion, one or more microporous membrane second layers and one or more microporous membrane first layers, such as on one or both sides of a second layer. The invention further relates to battery separators comprising the multi-layer microporous membrane and batteries utilizing the battery separators.
Inventors:
Shintaro Kikuchi
Kotaro Takita
Kotaro Takita
Application Number:
JP2010528582A
Publication Date:
January 27, 2011
Filing Date:
October 10, 2008
Export Citation:
Assignee:
Tonen Chemical Co., Ltd.
International Classes:
C08J9/28; B29C55/02; B32B27/32; H01M10/0525; H01M10/36; H01M50/406; H01M50/417; H01M50/491; H01M50/494; B29K23/00; B29K105/04; B29L7/00; B29L9/00; B29L31/14
Domestic Patent References:
| JPH07216118A | 1995-08-15 | |||
| JP2011500881A | 2011-01-06 |
Foreign References:
| WO2008026780A1 | 2008-03-06 | |||
| WO2005113657A1 | 2005-12-01 |
Attorney, Agent or Firm:
Yuzo Yamazaki
Naoto Sugiyama
Shirogane Expo
Toshiaki Akamatsu
Okuko Masako
Ono Wataru
Tadao Naito
Katsuaki Tsunemitsu
Asako Ando
Hirofumi Higashino
Takeko Miko
Naoto Sugiyama
Shirogane Expo
Toshiaki Akamatsu
Okuko Masako
Ono Wataru
Tadao Naito
Katsuaki Tsunemitsu
Asako Ando
Hirofumi Higashino
Takeko Miko