Title:
CARBON MATERIAL FOR NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2024/101778
Kind Code:
A1
Abstract:
The present invention relates to a carbon material for a negative electrode active material, the carbon material including coke with an average porosity of less than 2%, a negative electrode active material using same, and a lithium secondary battery. The negative electrode active material is manufactured using coke with an average porosity of less than 2%, and thus has an increased tap density and a reduced specific surface area. Accordingly, a lithium secondary battery manufactured using the negative electrode active material has superior initial efficiency and charging output.
Inventors:
KO SEUNGHYUN (KR)
JUNG MYUNG SUN (KR)
KIM JONGCHAN (KR)
CHOI HYUN KI (KR)
JUNG MYUNG SUN (KR)
KIM JONGCHAN (KR)
CHOI HYUN KI (KR)
Application Number:
PCT/KR2023/017377
Publication Date:
May 16, 2024
Filing Date:
November 02, 2023
Export Citation:
Assignee:
POSCO FUTURE M CO LTD (KR)
International Classes:
C01B32/205; H01M4/583; H01M4/02; H01M4/62; H01M10/052
Foreign References:
| US20210218025A1 | 2021-07-15 | |||
| KR20200076498A | 2020-06-29 |
Other References:
B. GORJI: "GORJI POUR SHAFIEE, Behzad. Porous carbon derived from high-abundant and low-cost petroleum coke towards high-performance and safe supercapacitors", (PH.D. THESIS), THE UNIVERSITY OF BRITISH COLUMBIA, 1 April 2022 (2022-04-01), pages 1 - 100, XP093169556
GRAY R.J., DEVANNEY K.F.: "Coke carbon forms: Microscopic classification and industrial applications", INTERNATIONAL JOURNAL OF COAL GEOLOGY, vol. 6, no. 3, 1 September 1986 (1986-09-01), AMSTERDAM, NL, pages 277 - 297, XP093056903, ISSN: 0166-5162, DOI: 10.1016/0166-5162(86)90005-4
MICHAŁ REJDAK: "Stamp-Charged Coke-Making Technology—The Effect of Charge Density and the Addition of Semi-Soft Coals on the Structural, Textural and Quality Parameters of Coke", ENERGIES, vol. 14, no. 12, CH , pages 1 - 31, XP093169566, ISSN: 1996-1073, DOI: 10.3390/en14123401
GRAY R.J., DEVANNEY K.F.: "Coke carbon forms: Microscopic classification and industrial applications", INTERNATIONAL JOURNAL OF COAL GEOLOGY, vol. 6, no. 3, 1 September 1986 (1986-09-01), AMSTERDAM, NL, pages 277 - 297, XP093056903, ISSN: 0166-5162, DOI: 10.1016/0166-5162(86)90005-4
MICHAŁ REJDAK: "Stamp-Charged Coke-Making Technology—The Effect of Charge Density and the Addition of Semi-Soft Coals on the Structural, Textural and Quality Parameters of Coke", ENERGIES, vol. 14, no. 12, CH , pages 1 - 31, XP093169566, ISSN: 1996-1073, DOI: 10.3390/en14123401
Attorney, Agent or Firm:
JO, Min Kyung et al. (KR)
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