Effect of crystallinity and particle size on coke-based anode for lithium ion batteries

Lee Seung Eun; Kim Ji Hong (김지홍); Lee, Young-Seak (이영석); Bai Byong Chol (배병철); Im Ji Sun (임지선)

doi:10.1007/s42823-020-00196-0

Effect of crystallinity and particle size on coke-based anode for lithium ion batteries

Carbon Letters
Abbr : Carbon Lett.
2021, 31(5), pp.911-920
DOI : 10.1007/s42823-020-00196-0
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : July 14, 2020
Accepted : October 12, 2020
Published : October 1, 2021

Lee Seung Eun ¹, Kim Ji Hong ¹, Lee, Young-Seak ², Bai Byong Chol ³, Im Ji Sun ¹

¹한국화학연구원
²충남대학교
³한국융합섬유연구원

Accredited

ABSTRACT

This study examined the efects of micro- (crystallinity) and macro (orientation)-crystalline properties of graphite on the initial efciency, discharge capacity, and rate performance of anodic materials. Needle coke and regular coke were selected as raw materials and pulverized to 2–25 μm to determine the efects of crystalline properties on particle shape after pulverization. Needle coke with outstanding crystallinity had high initial efciency, and smaller particles with larger specifc surface areas saw increased irreversible capacity due to the formation of SEI layers. Because of cavities existing between crystals, the poorer the crystalline properties were, the greater the capacity of the lithium ions increased. As such, regular coke had a 30 mAh/g higher discharge capacity than that of needle coke. Rate performance was more afected by particle size than by crystalline structure, and was the highest at a particle distribution of 10–15 μm.

KEYWORDS

Needle coke · Regular coke · Crystallinity · Particle size · Lithium ion batteries

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-27)

Total Citation Counts(KCI+WOS) (24) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (24) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-07-01)

* References for papers published after 2023 are currently being built.

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Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 4.82

Effect of crystallinity and particle size on coke-based anode for lithium ion batteries

ABSTRACT

KEYWORDS

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-27)

Total Citation Counts(KCI+WOS) (24) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (24) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-07-01)

* References for papers published after 2023 are currently being built.

Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 4.82

Effect of crystallinity and particle size on coke-based anode for lithium ion batteries

ABSTRACT

KEYWORDS

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KCI Citation Counts (10)

WoS Citation Counts (14) This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-27)

Total Citation Counts(KCI+WOS) (24) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (24) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-07-01)

REFERENCES (26) * References for papers published after 2023 are currently being built.

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-27)

* References for papers published after 2023 are currently being built.