Global Patent Index - EP 0996987 A1

EP 0996987 A1 2000-05-03 - METHOD FOR THE CONTINUOUS MANUFACTURE OF POSITIVE BATTERY GRIDS AND POSITIVE GRIDS OBTAINED BY SAID METHOD

Title (en)

METHOD FOR THE CONTINUOUS MANUFACTURE OF POSITIVE BATTERY GRIDS AND POSITIVE GRIDS OBTAINED BY SAID METHOD

Title (de)

VERFAHREN ZUR HERSTELLUNG DURCH STRANGGIESSEN VON POSITIVEN GITTERN VON AKKUMULATOREN UND GITTERN, HERGESTELLT NACH DIESEM VERFAHREN

Title (fr)

PROCEDE DE FABRICATION EN CONTINU DE GRILLES POSITIVES D'ACCUMULATEURS, ET GRILLE POSITIVE OBTENUE SELON UN TEL PROCEDE

Publication

EP 0996987 A1 (FR)

Application

EP 98940332 A

Priority

  • FR 9801643 W
  • FR 9709485 A

Abstract (en)

[origin: FR2766622A1] The invention concerns a method for the continuous manufacture of acid lead positive battery grids, comprising the following steps: a) preparing a lead alloy containing calcium, at a relative concentration ranging between 0.04 wt.% and 0.12 wt.%, of tin at a relative concentration less than 3 wt.%, aluminium, at a relative concentration ranging between 0.001 wt.% and 0.035 wt.%, and barium, at a relative concentration ranging between 0.02 wt.% and 0.1 wt.%; b) carrying out a continuous casting of said lead alloy; c) mechanically treating said continuous alloy casting to form said positive grids.

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

H01M 4/16; C22C 11/06; H01M 4/68; H01M 4/73

IPC 8 full level (invention and additional information)

C22C 11/06 (2006.01); H01M 4/56 (2006.01); H01M 4/68 (2006.01); H01M 4/73 (2006.01); H01M 4/84 (2006.01)

CPC (invention and additional information)

C22C 11/06 (2013.01); H01M 4/56 (2013.01); H01M 4/73 (2013.01); H01M 4/84 (2013.01)

Citation (search report)

See references of WO 9905732A1

Designated contracting state (EPC)

AT BE DE ES FR GB IT NL PT

EPO simple patent family

FR 2766622 A1 19990129; FR 2766622 B1 19991022; AU 8868198 A 19990216; BR 9811290 A 20000829; CA 2297768 A1 19990204; EP 0996987 A1 20000503; JP 2001511587 A 20010814; PL 338604 A1 20001106; WO 9905732 A1 19990204

INPADOC legal status


2002-04-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010904

2001-07-11 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010523

2000-05-03 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000207

2000-05-03 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE DE ES FR GB IT NL PT