Global Patent Index - EP 1410459 A1

EP 1410459 A1 20040421 - IMPROVEMENTS TO Ni-Zn BATTERY

Title (en)

IMPROVEMENTS TO Ni-Zn BATTERY

Title (de)

VERBESSERUNGEN IN NI-ZN AKKUMULATOR

Title (fr)

PERFECTIONNEMENTS APPORTES A L'ACCUMULATEUR Ni-Zn

Publication

EP 1410459 A1 20040421 (FR)

Application

EP 00964375 A 20000927

Priority

  • FR 0002659 W 20000927
  • FR 9912338 A 19990930

Abstract (en)

[origin: WO0124304A1] The invention concerns an alkaline Ni-Zn battery comprising both anolyte (E) partially or totally in the form of a viscous phase such as a gel, and catholyte (D) optionally in the form of a viscous phase, a microporous separator (A) between the anolyte and the catholyte, the anolyte and the catholyte having different compositions and volume, and an assembly of bipolar elements. The microporous separator is enclosed between impregnated macroporous separators (F) of the anolyte and the catholyte respectively. The total volume of the anolyte and of the catholyte is contained in the porosity of the macroporous separators and in the porosity of the electrodes. The microporous separator is for example based on cellulose or polypropylene. The inventive Ni-Zn battery has good charging/discharging cycles and low plate resistance.

IPC 1-7

H01M 10/28; H01M 10/30

IPC 8 full level

H01M 10/28 (2006.01); H01M 10/30 (2006.01); H01M 50/417 (2021.01); H01M 50/429 (2021.01); H01M 4/02 (2006.01)

CPC (source: EP KR US)

H01M 10/28 (2013.01 - KR); H01M 10/282 (2013.01 - EP US); H01M 10/30 (2013.01 - EP US); H01M 50/417 (2021.01 - EP KR US); H01M 50/429 (2021.01 - EP KR US); H01M 2004/029 (2013.01 - EP US); H01M 2300/0014 (2013.01 - EP US); H01M 2300/0085 (2013.01 - EP US); Y02E 60/10 (2013.01 - EP); Y02P 70/50 (2015.11 - EP)

Citation (search report)

See references of WO 0124304A1

Designated contracting state (EPC)

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

DOCDB simple family (publication)

FR 2799309 A1 20010406; FR 2799309 B1 20020125; CA 2422652 A1 20010405; EP 1410459 A1 20040421; JP 2003510791 A 20030318; KR 20020043602 A 20020610; US 2003165738 A1 20030904; WO 0124304 A1 20010405

DOCDB simple family (application)

FR 9912338 A 19990930; CA 2422652 A 20000927; EP 00964375 A 20000927; FR 0002659 W 20000927; JP 2001527392 A 20000927; KR 20027004129 A 20020329; US 11237402 A 20020329