Coated particles for lithium battery cathodes

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United States of America Patent

PATENT NO 9711797
SERIAL NO

13889335

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Abstract

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Particles of cathodic materials are coated with polymer to prevent direct contact between the particles and the surrounding electrolyte. The polymers are held in place either by a) growing the polymers from initiators covalently bound to the particle, b) attachment of the already-formed polymers by covalently linking to functional groups attached to the particle, or c) electrostatic interactions resulting from incorporation of cationic or anionic groups in the polymer chain. Carbon or ceramic coatings may first be formed on the surfaces of the particles before the particles are coated with polymer. The polymer coating is both electronically and ionically conductive.

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Patent Owner(s)

Patent OwnerAddress
SEEO INC3906 TRUST WAY HAYWARD CA 94545

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eitouni, Hany Basam Oakland, US 78 813
Mullin, Scott Allen San Leandro, US 7 99
Pratt, Russell Clayton Foster City, US 58 414
Singh, Mohit Berkeley, US 68 1574
Wang, Xiao-Liang Fremont, US 11 166

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