Basvah LLC

Syed Aziz

Dania Ghantous

On Kok Chang

George E Blomgren

Ou Mao

Peter Hallac

Positive electrodes for secondary batteries formed with a plurality of substantially aligned flakes within a coating. The flakes can be formed from metal oxide materials and have a number average longest dimension of greater than 60 &#x3bc;m. A variety of metal oxide or metal phosphate materials may be selected such as a group consisting of LiCoO, LiMnO, Li(M1M2Co)Owhere M1 and M2 are selected from among Li, Ni, Mn, Cr, Ti, Mg, or Al, 0&#x2266;x1&#x2266;0.5 and 0&#x2266;x2&#x2266;0.5, or alternatively, LiM1MnOwhere 0&#x3c;x&#x3c;0.8 and M1 represents one or more metal elements. Methods for making positive electrode materials are also provided involving the formation of structures with a desired longest dimension, preferably polycrystalline flakes. A cathode coating containing polycrystalline flakes may be deposited onto a conductive substrate and pressed to a desired final electrode thickness.

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Milpitas, CA, United States of America

Syed Aziz