Lithium-ion secondary battery and method of producing same

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United States of America Patent

PATENT NO RE49319
SERIAL NO

16808172

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Abstract

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A lithium-ion secondary battery including positive and negative electrodes, a separator element, an electrical conductor element and a binder, wherein the positive electrode includes a lithium-containing metal phosphate compound coated with a carbon material having at least one phase selected from a graphene phase and an amorphous phase, and further includes carbon black and a fibrous carbon material and wherein the negative-electrode material includes a graphite carbon material having at least one carbon phase selected from a graphene phase and an amorphous phase, and further includes carbon black and a fibrous carbon material, and wherein the binder includes a water-soluble synthetic resin or a water-dispersible synthetic resin. The most preferred positive electrode includes LiFePO4, The most preferred negative electrode includes artificial graphite or graphitazable powder. The most preferred binder is carboxyl methyl cellulose further including a surface active agent. A method of making the lithium-ion secondary battery.

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Patent Owner(s)

Patent OwnerAddress
HYDRO-QUEBEC75 RENÉ-LÉVESQUE OUEST MONTRÉAL H2Z 1A4

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barray, Francis Saint-Hyacinthe, CA 5 24
Frechette, Joel Boucherville, CA 1 0
Guerfi, Abdelbast Brossard, CA 109 691
Nakagawa, Jun Tsu, JP 49 329
Saito, Shinji Tsu, JP 330 5551
Sawai, Takehiko Tsu, JP 27 128
Urao, Kazunori Tsu, JP 21 78
Zaghib, Karim Longueil, CA 180 871

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