Compositions suitable for electrochemical cells

C - Chemistry – Metallurgy – 08 – F

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Details

C08F 8/00 (2006.01) G01N 27/407 (2006.01) H01G 9/02 (2006.01) H01M 2/16 (2006.01) H01M 4/62 (2006.01) H01M 6/16 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2331040

The invention relates to a composition which contains (a) between 1 and 99 weight % of a pigment (I) with a primary particle size of 5 nm to 100 µm, which is a solid Ia or a compound Ib acting as cathode material in electrochemical cells or a compound Ic acting as anode material in electrochemical cells or a mixture of the solid Ia with the compound lb or Ic; (b) between 1 and 99 weight % of a polymer material (II) which contains: (IIa) between 1 and 100 weight % of a polymer or copolymer (IIa) which has reactive groups (RG) in a terminal or lateral position or at the chain, which can give rise to thermal and/or UV radiation-induced cross-linking reactions, and (IIb) between 0 and 99 weight % of at least one polymer or copolymer (IIb) which has no reactive groups (RG).

L'invention concerne une composition qui contient (a) 1à 99 % en poids d'un pigment (I) présentant une taille de particules primaires comprise entre 5 nm et 100 mu m, constitué d'un solide Ia ou d'un composé Ib agissant comme matériau de cathode dans des cellules électrochimiques ou d'un composé Ic agissant comme matériau d'anode dans des cellules électrochimiques ou d'un mélange du solide Ia avec le composé Ib ou Ic, (b) 1 à 99 % en poids d'un matériau polymère (II) contenant (IIa) 1 à 100 % en poids d'un polymère ou d'un copolymère (IIa) présentant des groupes réactifs (RG) terminaux, latéraux ou situés au niveau de la chaîne, qui peuvent donner lieu à une réaction de réticulation par voie thermique et/ou sous l'effet d'un rayonnement UV, (IIb) 0 à 99 % en poids d'au moins un polymère ou d'un copolymère (IIb) exempt de groupes réactifs (RG).

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