Global Patent Index - EP 0687386 A4

EP 0687386 A4 2000-09-06 - AN ELECTRODE PLATE CONSTRUCTION

Title (en)

AN ELECTRODE PLATE CONSTRUCTION

Title (de)

KONSTRUKTION EINER ELEKTRODENPLATTE

Title (fr)

FABRICATION D'UN ELEMENT D'ELECTRODE

Publication

EP 0687386 A4 (EN)

Application

EP 93906231 A

Priority

US 9301714 W

Abstract (en)

[origin: WO9419837A1] A battery electrode (12) for use in an electrolytic bipolar battery (10) comprises a structurally rigid and electrically conductive core member (18), at least one corrosion resistant layer (20), an interface layer (22), a positive-side active layer (14) and a negative-side active layer (26). The corrosion resitant layer (20) is in intimate contact with and is interposed between one surface of the core member (18) and the interface layer (22). The corrosion resistant layer is comprised of a material which can participate in a corrosive electrochemical reaction with the material of the positive active layer, but does so less effectively than does the interface layer. The interface layer (22) is in intimate contact with and is interposed between the corrosion resistant layer (20) and the positive-side active layer (14). The negative-side active material (26) is in intimate contact with the surface of the core member opposite the core member surface carrying the corrosion resistant layer. The margins of the electrode are connected to nonconductive components (30) of the battery which space plural ones of the electrodes from each other. Those connections are made via marginal surface portions (40) of the electrodes from which oxides (36) have been removed. The connections form seals which are secure from leakage of electrolyte through the seals.

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

H01M 4/68; H01M 4/66

IPC 8 full level (invention and additional information)

H01M 2/06 (2006.01); H01M 4/14 (2006.01); H01M 4/66 (2006.01); H01M 4/68 (2006.01); H01M 4/70 (2006.01); H01M 10/12 (2006.01); H01M 10/18 (2006.01); H01M 4/02 (2006.01); H01M 6/48 (2006.01)

CPC (invention and additional information)

H01M 4/68 (2013.01); H01M 2/06 (2013.01); H01M 4/14 (2013.01); H01M 10/18 (2013.01); H01M 6/48 (2013.01); H01M 2004/029 (2013.01)

Citation (search report)

  • [X] US 5143806 A 19920901 - BULLOCK NORMA K [US], et al
  • [A] EP 0079666 A1 19830525 - WESTINGHOUSE ELECTRIC CORP [US]
  • [XA] DATABASE WPI Section Ch Week 197945, Derwent Publications Ltd., London, GB; Class L03, AN 1979-81247B, XP002142670
  • See also references of WO 9419837A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 9419837 A1 19940901; AU 3733993 A 19940914; AU 668547 B2 19960509; CA 2156489 A1 19940901; CA 2156489 C 19990629; EP 0687386 A1 19951220; EP 0687386 A4 20000906; JP H08506926 A 19960723; MX 9401371 A 19940831; TW 237567 B 19950101; TW 364667 U 19990711

INPADOC legal status


2004-03-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030829

2000-09-06 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000726

2000-09-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

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

2000-09-06 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7H 01M 4/68 A, 7H 01M 4/66 B

1995-12-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19950822

1995-12-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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