Title:
METHOD FOR PRODUCING NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERIES, AND NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERIES
Document Type and Number:
WIPO Patent Application WO/2019/009422
Kind Code:
A1
Abstract:
This method for producing a negative electrode material for lithium ion secondary batteries comprises: a step for preparing an activated carbonaceous substance A that is obtained by subjecting a carbonaceous substance A to a treatment that increases the BET specific surface area thereof by 2% to 50%; a step for obtaining a mixture by mixing the activated carbonaceous substance A with a carbonaceous substance precursor which serves as a starting material for a carbonaceous substance B that is different from the carbonaceous substance A; and a step for obtaining a baked product by subjecting the mixture to a heat treatment.
Inventors:
HOSHI KENTO (JP)
TSUCHIYA HIDEYUKI (JP)
KUBOTA TAKASHI (JP)
TSUCHIYA HIDEYUKI (JP)
KUBOTA TAKASHI (JP)
Application Number:
PCT/JP2018/025776
Publication Date:
January 10, 2019
Filing Date:
July 06, 2018
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD (JP)
International Classes:
H01M4/587; C01B32/05; C01B32/205; H01M4/36
Foreign References:
| JP2016143448A | 2016-08-08 | |||
| JP2014170724A | 2014-09-18 | |||
| JP2018092916A | 2018-06-14 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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