Films for electrochemical components and a method for...

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Patent

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Details

H01M 10/052 (2010.01) H01M 4/13 (2010.01) H01M 4/139 (2010.01) H01M 10/058 (2010.01) H01M 4/62 (2006.01)

Patent

CA 2392702

The invention relates to a paste-like mass, which may be used in electrochemical components and which comprises a heterogeneous mixture of (1.) a matrix (A), comprising at least one organic polymer, pre-cursors or pre- polymers thereof, or the named components, (2.) an inorganic material in the form of a solid substance (B), which may be electrochemically activated and is not soluble in either water or the matrix and (3.) a material (C), which can improve the transport and storage of electrolyte fluids in(to) the component, with the proviso, that said material (C) is not a material which possesses conductivity-improving properties when the solid substance (B) is made from a material suitable as electrode material. Layers (foils) and layered electrochemical composites may be produced from said mass, which may subsequently be impregnated with an electrolyte solution, preferably an electrolyte dissolved in the plastifier agents for matrix (A). Electrochemically active components, for example batteries and accumulators, may be produced in this manner.

L'invention concerne une matière pâteuse utilisable dans des composants électrochimiques, comprenant un mélange hétérogène qui contient : (1.) une matrice (A) renfermant au moins un polymère organique, ses précurseurs ou ses prépolymères ou bien constituée des composants mentionnés ; (2.) un matériau inorganique activable électrochimiquement, insoluble dans la matrice et dans l'eau, se présentant sous la forme d'une substance solide (B) ; et (3.) un matériau (C) qui peut améliorer le transport et le stockage du liquide électrolytique dans le composant électrochimique, à condition que le matériau (C) ne soit pas un matériau présentant simultanément des propriétés améliorant la conductivité lorsque la substance solide (B) est un matériau approprié en tant que matériau d'électrode. On peut produire à partir de cette matière des couches (feuilles) et des ensembles de couches électrochimiques qui sont ensuite imprégnés d'une solution électrolytique, de préférence d'électrolytes dissous dans des plastifiants destinés à la matrice (A). On obtient ainsi des composants électrochimiquement actifs, par exemple des batteries et des accumulateurs.

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