Title:
METHOD FOR PRODUCING CARBON PRECURSOR PARTICLES AND CARBONACEOUS MATERIAL FOR SECONDARY BATTERY NEGATIVE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2022/131361
Kind Code:
A1
Abstract:
Provided is a method for producing carbon precursor particles in a short time with less processing steps. The present invention is a method for producing carbon precursor particles by oxidizing organic particles, the method comprising: using a reaction vessel 1 having a stirring means 2 provided with a rotating shaft 201 and a stirring blade 202 provided on the rotating shaft to put, into the reaction vessel, a raw material 10 containing organic particles having an average particle diameter of 1-100 μm; introducing an oxidizing gas 11 into the reaction vessel while stirring the raw material with the stirring means to perform oxidization treatment on the organic particles; and in the oxidation treatment, treating the raw material in the reaction vessel at a temperature of 150 °C or higher, and simultaneously controlling the temperature so that the maximum temperature is 180-350 °C.
Inventors:
SONOBE NAOHIRO (JP)
KOMATSU MAYU (JP)
KOMATSU MAYU (JP)
Application Number:
PCT/JP2021/046723
Publication Date:
June 23, 2022
Filing Date:
December 17, 2021
Export Citation:
Assignee:
KUREHA CORP (JP)
International Classes:
C01B32/05; H01M4/587
Domestic Patent References:
| WO2019235586A1 | 2019-12-12 |
Foreign References:
| JP2016181348A | 2016-10-13 | |||
| JP2015207428A | 2015-11-19 | |||
| JP2008305661A | 2008-12-18 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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