Negative electrode material for lithium-ion secondary battery and use thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12155065
APP PUB NO 20230207780A1
SERIAL NO

17927591

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Abstract

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A negative electrode material for a lithium-ion secondary battery containing a composite (C) that contains a porous carbon (A) and a Si-containing compound (B). The porous carbon (A) satisfies V1/V0>0.80 and V2/V0<0.10. When a total pore volume at the maximum value of a relative pressure P/P0 is defined as V0 and P0 is a saturated vapor pressure, a cumulative pore volume at a relative pressure P/P0=0.1 is defined as V1, and a cumulative pore volume at a relative pressure P/P0=10−7 is defined as V2 in a nitrogen adsorption test. Further, the porous carbon (A) has a BET specific surface area of 800 m2/g or more, and the Si-containing compound (B) is contained in pores of the porous carbon (A). Also disclosed is a negative electrode sheet including the negative electrode material and a lithium-ion secondary battery including the negative electrode sheet.

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Patent OwnerAddress
GROUP14 TECHNOLOGIES INC8502 MALTBY RD WOODINVILLE WA 98072

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inoue, Hirofumi Tokyo, JP 157 2962
Ito, Yuji Tokyo, JP 305 3334
Kurita, Takayuki Tokyo, JP 10 7

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