Graphite particles and lithium secondary battery using the same as negative electrode

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United States of America Patent

PATENT NO 8802297
SERIAL NO

14072821

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Abstract

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A method for forming a negative electrode for a lithium secondary battery, includes providing a paste comprising graphite particulates comprise assembled or bound graphite particles in each of which a plurality of flat-shaped particles are assembled or bound together so that the planes of orientation are not parallel to one another, and the mixture including 3 to 10 parts by weight of the organic binder per 100 parts by weight of the graphite particulates, a binder and a solvent, coating the paste on a current collector, drying the paste coated on the current collector to form a mixture of the graphite particulates and the binder, and integrating the mixture with the current collector by pressing to provide a density of the mixture of graphite particulates and organic binder of 1.5 to 1.9 g/cm3.

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Patent Owner(s)

  • HITACHI CHEMICAL COMPANY, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujita, Atsushi Ibaraki, JP 132 792
Ishii, Yoshito Ibaraki, JP 29 156
Nishida, Tatsuya Ibaraki, JP 34 607
Yamada, Kazuo Ibaraki, JP 159 2272

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