The effect of carboxymethyl cellulose swelling on the stability of natural graphite particulates in an aqueous medium for lithium ion battery anodes
- Authors
- Lee, Jin-Hyon; Choi, Young-Min; Paik, Ungyu; Park, Jea-Gun
- Issue Date
- Dec-2006
- Publisher
- SPRINGER
- Keywords
- lithium ion battery; aqueous processing; natural graphite; swelling behavior; stability
- Citation
- JOURNAL OF ELECTROCERAMICS, v.17, no.2-4, pp.657 - 660
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF ELECTROCERAMICS
- Volume
- 17
- Number
- 2-4
- Start Page
- 657
- End Page
- 660
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/180686
- DOI
- 10.1007/s10832-006-8975-4
- ISSN
- 1385-3449
- Abstract
- The effect of carboxymethyl cellulose (CMC) swelling on the stability and chemical properties of a natural graphite suspension in an aqueous medium was investigated. Suspensions prepared at different pH were characterized according to swelling behavior, rheology, green microstructural observation, and measurement of the pore size. A correlation was found between dispersion stability and electrochemical performance. It was found that the swelling of CMC was a critical factor influencing the stability of graphite suspensions. This was evidenced by observations of the green microstructures and changes noted in sedimentation behaviors. Electrochemical experiments using a Li/organic electrolyte/natural graphite anode half-cell and 750 mAh-class lithium ion cells exhibited an initial discharge capacity above 340 mAh g(-1) and an improved charge-discharge efficiency.
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