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Author

Cho, Jaephil
Nano Energy Storage Materials Lab (NESM)
Research Interests
  • Li-ion battery, metal-air battery, redox-flow battery, flexible battery .

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Direct carbon-black coating on LiCoO2 cathode using surfactant for high-density Li-ion cell

Cited 40 times inthomson ciCited 37 times inthomson ci
Title
Direct carbon-black coating on LiCoO2 cathode using surfactant for high-density Li-ion cell
Author
Kim, JisukKim, ByoungsooLee, Joon-GonCho, JaephilPark, Byungwoo
Keywords
Capacity; Carbon-black coating; Density; Lithium cobalt oxide; Lithium-ion battery; Surfactant
Issue Date
200501
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF POWER SOURCES, v.139, no.1-2, pp.289 - 294
Abstract
Direct carbon-black coating of the cathode material using a surfactant increases the capacity of a Li-ion cell by similar to10% compared with using bare LiCoO2. The coating method comprises two steps: (i) dispersion of aggregated carbon black using orotano(R)-a polyacrylate dispersant; (ii) carbon-black coating of the cathode material using a gelatin-an amphoteric surfactant. This technology reduces the carbon content in the electrode without sacrificing the cycle-life performance of the cell, and also improves the rate capability of the Li-ion cell. Moreover, the direct carbon-black-coated cathode exhibits excellent capacity recovery and restricted expansion of the cell thickness compared with a bare cathode during storage at 85 degreesC.
URI
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DOI
http://dx.doi.org/10.1016/j.jpowsour.2004.07.008
ISSN
0378-7753
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