Global Patent Index - EP 1138095 A1

EP 1138095 A1 20011004 - ELECTROCHEMICAL CELL HAVING ELECTRODE ADDITIVES

Title (en)

ELECTROCHEMICAL CELL HAVING ELECTRODE ADDITIVES

Title (de)

ELEKTROCHEMISCHE ZELLE MIT ELEKTRODEN ZUSATZSTOFFEN

Title (fr)

PILE LECTROCHIMIQUE LECTRODES ADDITIV ES

Publication

EP 1138095 A1 20011004 (EN)

Application

EP 99958931 A 19991112

Priority

  • US 9926814 W 19991112
  • US 19225198 A 19981113
  • US 41273599 A 19991004

Abstract (en)

[origin: WO0030198A1] An electrochemical cell is provided having an anode, a cathode and an electrolyte, the anode and optionally the cathode comprising a barium compound such as barium sulphate (BaSO4) or barium hydroxide (Ba(OH)2) as an additive. Alternatively, the cathode comprises barium hydroxide (Ba(OH)2) as an additive. The anode comprises an anode active material such as zinc, and the cathode comprises a cathode active material such as manganese dioxide, preferably electrolytic manganese dioxide. Also provided is a method of treating active material by mixing with the barium compound additive and drying the mixture. The anode and cathode are particularly adapted for use in an electrochemical cell having an alkaline electrolyte. The barium compound additive provides improved service performance for the cell.

IPC 1-7

H01M 6/06; H01M 4/50; H01M 4/42

IPC 8 full level

H01M 4/06 (2006.01); H01M 4/42 (2006.01); H01M 4/50 (2010.01); H01M 4/62 (2006.01); H01M 6/06 (2006.01)

CPC (source: EP)

H01M 4/42 (2013.01); H01M 4/50 (2013.01); H01M 6/06 (2013.01)

Citation (search report)

See references of WO 0030198A1

Designated contracting state (EPC)

CH DE FR GB IT LI NL

DOCDB simple family (publication)

WO 0030198 A1 20000525; AU 1619900 A 20000605; CA 2351089 A1 20000525; CN 1333930 A 20020130; EP 1138095 A1 20011004; JP 2002530815 A 20020917

DOCDB simple family (application)

US 9926814 W 19991112; AU 1619900 A 19991112; CA 2351089 A 19991112; CN 99815478 A 19991112; EP 99958931 A 19991112; JP 2000583107 A 19991112