CARBON MATERIAL FOR NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND CARBON MATERIAL PRODUCTION METHOD

Title:

Document Type and Number:

WIPO Patent Application WO/2019/009333

Kind Code:

A1

Abstract:

Provided are: a carbon material suitable for a negative electrode active material for non-aqueous electrolyte secondary batteries having high charge and discharge capacity, suitably high charge and discharge efficiency, and low resistance, e.g., lithium ion secondary batteries, sodium ion secondary batteries, lithium sulfur batteries, and lithium air batteries; a negative electrode including said carbon material; a non-aqueous electrolyte secondary battery having said negative electrode; and a production method for said carbon material. The present invention pertains to a carbon material having, as found using element analysis, a nitrogen content of at least 1.0% by mass, an oxygen content of no more than 1.5% by mass, a ratio (RN/H) between nitrogen content and hydrogen content of 6–100, and a ratio (RO/N) between oxygen content and nitrogen content of 0.1–1.0. The carbon materila has a carbon surface interval (d002), as measured using X ray diffraction measurement, of at least 3.70Å.

Inventors:

IZAWA TAKAFUMI (JP)
TACHIKAWA KENGO (JP)
IWASAKI HIDEHARU (JP)

Application Number:

PCT/JP2018/025389

Publication Date:

January 10, 2019

Filing Date:

July 04, 2018

Export Citation:

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Assignee:

KURARAY CO (JP)

International Classes:

C01B32/05; H01M4/587; C01C1/02; C01C1/08

Domestic Patent References:

WO2017022449A1	2017-02-09
WO2015129200A1	2015-09-03
WO2014034858A1	2014-03-06
WO2014038492A1	2014-03-13

Foreign References:

JP2017084706A	2017-05-18
JP2017133040A	2017-08-03
JP2006083012A	2006-03-30
JPS5233314B2	1977-08-27
JP5477391B2	2014-04-23

Other References: