Compositions suitable for electrochemical cells

US6475663B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Helmut Möhwald · Annweiler am Trifels, DE
• Gerhard Dötter · Ludwigshafen, DE
• Rainer Blum · Ludwigshafen, DE
• Peter Keller · Bruchmühlbach-Miesau, DE
• Stephan Bauer · Ostercappeln, DE
• Bernd Bronstert · Otterstadt, DE

Key dates

• Filing date: Feb 1, 2001
• Grant date: Nov 5, 2002
• Expiry date: Feb 1, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A composition comprising:(a) from 0 to less than 1% by weight of a pigment (I) having a primary particle size of from 5 nm to 100 &mgr;m which is a solid Ia or a compound Ib which acts as cathode material in electrochemical cells or a compound Ic which acts as anode material in electrochemical cells or a mixture of the solid Ia with the compound Ib or the compound Ic,(b) more than 99 to 100% by weight of a polymeric material (II) which comprises:(IIa)from 1 to 100% by weight of a polymer or copolymer (IIa) containing reactive groups (RG) on the chain in terminal and/or lateral positions which are capable of crosslinking reactions in the presence of heat and/or with UV radiation, and(IIb) from 0 to 99% by weight of at least one polymer or copolymer (IIb) which contains no reactive groups (RG).