Title:
METHOD FOR PREPARING PETCOKE-BASED ARTIFICIAL GRAPHITE NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY, ARTIFICIAL GRAPHITE NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY PREPARED THEREBY, AND LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/215933
Kind Code:
A1
Abstract:
The present invention provides: a method for preparing a petcoke-based artificial graphite negative electrode material for a lithium secondary battery, in which low-grade petcoke is used as a raw material, and artificial graphite having a high degree of graphitization is prepared through leaching and acid treatment of pulverized/classified low-grade petcoke in an acidic solution, followed by carbonization and graphitization; an artificial graphite negative electrode material for a lithium secondary battery, prepared thereby; and a lithium secondary battery.
Inventors:
JEON YOUNG-PYO (KR)
KO SEUNG-HYUN (KR)
KIL HYUN-SIG (KR)
HA SEUNG-JAE (KR)
LEE HYO-CHEOL (KR)
JO MIN-SEONG (KR)
KO SEUNG-HYUN (KR)
KIL HYUN-SIG (KR)
HA SEUNG-JAE (KR)
LEE HYO-CHEOL (KR)
JO MIN-SEONG (KR)
Application Number:
PCT/KR2022/004463
Publication Date:
October 13, 2022
Filing Date:
March 29, 2022
Export Citation:
Assignee:
KOREA RES INST CHEMICAL TECH (KR)
International Classes:
C01B32/205; H01M4/587; H01M10/0525
Foreign References:
| KR20190054045A | 2019-05-21 | |||
| KR19980016008A | 1998-05-25 | |||
| KR20180108707A | 2018-10-04 | |||
| KR101651835B1 | 2016-08-30 | |||
| JPH0212903B2 | 1990-03-29 | |||
| KR102305756B1 | 2021-09-27 |
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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