| US 7,524,580 B1 | ||
| Films for electrochemical components and method for producing the same | ||
| Peter Birke, Ellwangen (Germany); and Fatima Salam, Ellwangen (Germany) | ||
| Assigned to Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Munich (Germany) | ||
| Appl. No. 10/129,029 PCT Filed Oct. 18, 2000, PCT No. PCT/EP00/10259 § 371(c)(1), (2), (4) Date Apr. 29, 2002, PCT Pub. No. WO01/33656, PCT Pub. Date May 10, 2001. |
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| Claims priority of application No. 199 52 335 (DE), filed on Oct. 29, 1999. | ||
| Int. Cl. H01M 6/16 (2006.01); H01M 6/18 (2006.01); H01M 4/62 (2006.01) | ||
| U.S. Cl. 429—217 [429/129; 429/215; 429/303; 429/316; 429/338] | 11 Claims |
| 1. Method for producing a self-supporting flexible film or a flexible film that is placed on a substrate,
comprising a heterogeneous mixture of
(1.) a matrix (A) containing at least one fluorinated hydrocarbon polymer and a plasticizer, the plasticizer being a carbonate
compound; and
(2.) an electrochemically activatable inorganic material in the form of a solid substance (B), said material not being soluble
in said matrix and said electrochemically activatable material (B) being a lithium ion containing electrode or electrolyte
material,
with the proviso that an ion conductor that is soluble in the plasticizer and that is different from (B) is not present in
the mixture, wherein the plasticizer is present in a quantity of up to about 5% by weight, relative to the quantity of the
electrochemically activatable material,
characterized in that a paste-like mass, comprising
a heterogeneous mixture of the matrix (A) containing a polymer as defined in (1.) above, a precursor thereof or a prepolymer
thereof, and a plasticizer as defined in (1.) above, and an electrochemically activatable inorganic material in the form of
a solid substance (B) as defined in (2.) above
is applied on a base to have layer form, and the layer thus obtained is dried so that the plasticizer remains in the film.
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