SEPARATOR FOR ELECTROCHEMICAL DEVICE AND METHOD FOR PRODUCING THE SAME, AND ELECTROCHEMICAL DEVICE

Title:

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND METHOD FOR PRODUCING THE SAME, AND ELECTROCHEMICAL DEVICE

Document Type and Number:

WIPO Patent Application WO/2001/093350

Kind Code:

A1

Abstract:

A separator for an electrochemical device having an excellent heat resistance, excellent electrolyte holding properties, excellent inner short-circuit preventing properties excellent winding properties, a low internal resistance, and a long life, a method for producing the same, and an electrochemical device. The separator is characterized in that it is made of a wet nonwoven fabric containing one or more kinds of organic fibers fibrillated at least partially to a fiber diameter of 1 $g(m)m or less and one or more kinds of not fibrillated organic fibers having fineness of 0.5 dtex or less.

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Inventors:

TSUKUDA TAKAHIRO (JP)
MIDORIKAWA MASATOSHI (JP)
YOSHIDA MITSUO (JP)
SHIGEMATSU TOSHIHIRO (JP)
TAKAOKA KAZUCHIYO (JP)
HYODO KENJI (JP)

Application Number:

PCT/JP2001/004492

Publication Date:

December 06, 2001

Filing Date:

May 29, 2001

Export Citation:

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Assignee:

MITSUBISHI PAPER MILLS LTD (JP)
TSUKUDA TAKAHIRO (JP)
MIDORIKAWA MASATOSHI (JP)
YOSHIDA MITSUO (JP)
SHIGEMATSU TOSHIHIRO (JP)
TAKAOKA KAZUCHIYO (JP)
HYODO KENJI (JP)

International Classes:

D21H15/02; H01G9/00; H01G9/02; H01G11/22; H01G11/28; H01G11/38; H01G11/42; H01G11/52; H01G11/54; H01G11/84; H01G11/86; H01M50/403; H01M50/414; H01M50/423; H01M50/491; H01M50/494; H01M50/497; D21H13/08; D21H13/24; D21H13/26; D21H13/40; D21H15/10; D21H25/04; (IPC1-7): H01M2/16; D21H13/26; D21H15/02; H01G9/02; H01G9/155

Foreign References:

JP2001185455A	2001-07-06
EP0834936A1	1998-04-08
EP0898316A1	1999-02-24
JP2000299098A	2000-10-24
JP2001035754A	2001-02-09
JPH1154101A	1999-02-26
JP2000048792A	2000-02-18
JPH0931817A	1997-02-04
JPH0963560A	1997-03-07
JPH1064504A	1998-03-06
JPH06163324A	1994-06-10

Attorney, Agent or Firm:

Tsukuni, Hajime (Toranomon 1-chome Minato-ku Tokyo, JP)

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