Power storage device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12183477
APP PUB NO 20200402683A1
SERIAL NO

16991320

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Abstract

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A power storage device with high output is provided, in which the specific surface area is increased while keeping the easy-to-handle particle size of its active material. The power storage device includes a positive electrode including a positive electrode current collector and a positive electrode active material layer, a negative electrode including a negative electrode current collector and a negative electrode active material layer, and an electrolyte. The negative electrode active material layer includes a negative electrode active material which is a particle in which a plurality of slices of graphite is overlapped with each other with a gap therebetween. It is preferable that the grain diameter of the particle be 1 μm to 50 μm. Further, it is preferable that the electrolyte be in contact with the gap between the slices of graphite.

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Patent Owner(s)

Patent OwnerAddress
SEMICONDUCTOR ENERGY LABORATORY CO LTD398 HASE ATSUGI-SHI KANAGAWA-KEN 243-0036

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Momo, Junpei Kanagawa, JP 146 2390
Nomoto, Kuniharu Saitama, JP 43 695
Todoriki, Hiroatsu Kanagawa, JP 34 472

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