Title:
ELECTROCHEMICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2007/114245
Kind Code:
A1
Abstract:
An electrochemical element in which a safety mechanism can be normally operated
even when an accident happens. The electrochemical element comprises an exhaust
valve which is operated, when the internal pressure in a case (4) reaches a predetermined
value, so as to discharge the generated gas in the case to the outside; and a holed
plate (2) which has hole parts (5a, 5b) and is installed between an electrode group
(3) and the exhaust valve. The area of the holed plate (2) excluding the hole parts
(5a, 5b) is 20 to 50% of the area of the case opening. The holed plate (2) has a function
for electrically insulating the electrode group (3) from a sealing plate (1).
Inventors:
NISHINO HAJIME
UEDA TOMOMICHI
MIYATA KYOUSUKE
SHIMADA MIKINARI
UEDA TOMOMICHI
MIYATA KYOUSUKE
SHIMADA MIKINARI
Application Number:
PCT/JP2007/056850
Publication Date:
October 11, 2007
Filing Date:
March 29, 2007
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
NISHINO HAJIME
UEDA TOMOMICHI
MIYATA KYOUSUKE
SHIMADA MIKINARI
NISHINO HAJIME
UEDA TOMOMICHI
MIYATA KYOUSUKE
SHIMADA MIKINARI
International Classes:
H01M50/586; H01M50/593; H01M10/052; H01M10/36
Foreign References:
| JPH09283111A | 1997-10-31 | |||
| JPH08153541A | 1996-06-11 | |||
| JPH09259869A | 1997-10-03 | |||
| JPH09199114A | 1997-07-31 | |||
| JP2001273932A | 2001-10-05 | |||
| JPH01294355A | 1989-11-28 |
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (2-2 Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, JP)
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