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Title:
CARBONACEOUS MATERIAL SUITABLE FOR NEGATIVE ELECTRODE ACTIVE MATERIAL OF POWER STORAGE DEVICE, NEGATIVE ELECTRODE FOR POWER STORAGE DEVICE, AND POWER STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/059646
Kind Code:
A1
Abstract:
The present invention provides a carbonaceous material which is suitable for a negative electrode active material of a power storage device (such as a lithium-ion secondary battery, sodium-ion secondary battery, lithium sulfur battery, lithium air battery, all solid state battery, or capacitor) having high discharge capacity and high cycle durability. The present invention also provides a negative electrode which contains the carbonaceous material and a power storage device which includes the negative electrode. Disclosed is a carbonaceous material in which the nitrogen content obtained by element analysis is 1.0-4.0 mass%, the oxygen content obtained by element analysis is 1.1-2.1 mass%, and a carbon face spacing (d002) observed by X-ray diffraction measurement is not less than 3.70 Å.

Inventors:
NISHIUMI KOSUKE (JP)
NISHIMURA KEIICHI (JP)
KAJIYASHIKI TSUYOSHI (JP)
Application Number:
PCT/JP2021/033545
Publication Date:
March 24, 2022
Filing Date:
September 13, 2021
Export Citation:
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Assignee:
KURARAY CO (JP)
International Classes:
C01B32/05; H01G11/06; H01G11/32; H01G11/50; H01M4/587
Domestic Patent References:
WO2019009332A12019-01-10
WO2019009333A12019-01-10
WO2015129200A12015-09-03
WO2014038492A12014-03-13
Foreign References:
JP2019008910A2019-01-17
JP2017084706A2017-05-18
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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