Electrically conducting polymers

H - Electricity – 01 – B

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402/1, 31/154, 2

H01B 1/12 (2006.01) C08G 61/12 (2006.01) C25B 3/10 (2006.01) G02F 1/15 (2006.01) H01M 4/60 (2006.01)

Patent

CA 1336847

An electrically conducting organic material for use on battery electrodes and the like, which comprises a polymer optionally doped with an n- or p- type dopant, wherein the polymer contains along its backbone at least one .pi.-conjugated linear unit of formula I Image I wherein A is a divalent optionally-substituted conjugated organic cyclic group containing a .pi.-conjugated sequence of single bonds and at least two double bonds, B is a tetravalent optionally- substituted conjugated organic cyclic group containing a .pi.- conjugated sequence of single bonds and at least one double bond; A and B have the same molecular and structural formula except that they contain a different configuration of double and single bonds; Y is a trivalent group containing m linking atoms between adjacent groups A and B where m is an odd number from 1 to 11, provided that when Y contains more than one linking atom between said adjacent groups, the linking atoms from a .pi.-conjugated chain of atoms between said adjacent groups A and B, and n is an integer from 1 to 4. One example of the material is poly(2,2'- dipyrrylmethane) doped with CF3SO? ions, which is relatively air- and water-stable and has a conductivity of about 1.05 cm-1.

513565

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