Global patent index - EP 0769211 A4

EP 0769211 A4 2000-02-16 - SMALL BATTERY CELL

Title (en)

SMALL BATTERY CELL

Title (de)

KLEINE BATTERIEZELLE

Title (fr)

ELEMENT DE BATTERIE DE PETITE DIMENSION

Publication

EP 0769211 A4 (EN)

Application

EP 95926745 A

Priority

  • US 27141694 A
  • US 48407995 A
  • US 9509093 W

Abstract (en)

[origin: WO9601504A1] A small battery cell (10) including a frangible pressure relief (42) and spring (36) disengagement device which vents various internal pressures to the atmosphere to prevent cell (10) bulging or explosion, and also which internally interrupts current flow through the cell (10) due to internal cell (10) over heat, excessive current flow or the like. Internal reconnection of cell members reoccurs subsequent to internal thermal or other internal abnormalities. Alternate embodiments illustrate an apparatus and method for vacuum assisted filling and an apparatus for vacuum sealing of the small battery cell (10).

IPC 1-7 (main, further and additional classification)

H01M 6/10; H01M 2/12; H01M 2/26; H01M 2/34; H01M 2/36; H01M 10/04

IPC 8 full level (invention and additional information)

H01M 2/12 (2006.01); H01M 2/34 (2006.01); H01M 2/36 (2006.01); H01M 10/04 (2006.01)

CPC (invention and additional information)

H01M 10/0431 (2013.01); H01M 2/1241 (2013.01); H01M 2/34 (2013.01); H01M 2/361 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9601504 A1 19960118; CA 2194490 A1 19960118; EP 0769211 A1 19970423; EP 0769211 A4 20000216

INPADOC legal status

2001-04-18 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20000926

2000-02-16 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20000105

2000-02-16 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

2000-02-16 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7H 01M 6/10 A, 7H 01M 10/04 B, 7H 01M 2/34 B, 7H 01M 2/12 B, 7H 01M 2/36 B, 7H 01M 2/26 B

1997-04-23 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19970130

1997-04-23 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE