High capacity electrode paste and process for fabrication
AssigneeMitsubishi Chemical Corporation
InventorsMichael McLin, Arthur A. Massucco, Denis G. Fauteux
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Abstract
The present invention is directed to a high capacity electrode paste and process for the fabrication of same. The resultant paste has a plurality of electrochemically active particles dispersed in solution. Additionally, during fabrication of the electrode paste, the electrochemically active material is subjected to a grinding step. After grinding the material to the desired particle sizes, the grinding medium is removed. However, the particles remain dispersed in solution, even after removal of the grinding medium. Accordingly, each of the individual particles have at least a portion of their respective surfaces in contact with the solution.
Claims19
A process for manufacturing an electrode paste for use in an electrolytic cell comprising the steps of:
- mixing electrochemically active material with a solution, wherein the solution includes a grinding medium/solvent,
- generating a plurality of electrochemically active particles, from the electrochemically active material, within the solution;
- contacting and maintaining at least a portion of a surface of each of the electrochemically active particles with the solution;
- the step of generating includes the step of grinding the mixed electrochemically active material in the solution, into particles;
- at least partially evaporating the grinding medium/solvent after the step of grinding without further evaporation of the solution;
- and
- separately maintaining each of the ground electrochemically active particles in the remaining solution.
Dependencies are inferred from the claim text.