High rate capability of Cu-coated activated carbon electrodes for Li-ion capacitors using non-aqueous electrolytes

Title
High rate capability of Cu-coated activated carbon electrodes for Li-ion capacitors using non-aqueous electrolytes
Authors
김상옥김형선이중기
Keywords
Microporous materials; coatings; Surface properties; Electrochemical techniques
Issue Date
2012-03
Publisher
Materials chemistry and physics
Citation
VOL 133, NO 1, 38-41
Abstract
A novel type surface modified activated carbon (AC) was prepared using the electroless deposition method as a new attempt to modify AC for Li-ion capacitors. The resulting Cu-coated AC exhibited higher specific capacitance than that of AC under a high cycling rate of 100 C. This result suggests that Cu nanoparticles play an important role in enhancing the rate capability of AC. The improved cell performance might be attributed to the reduced charge transfer resistance between the Cu-coated AC electrode and organic electrolyte while maintaining surface stability.
URI
http://pubs.kist.re.kr/handle/201004/42077
ISSN
02540584
Appears in Collections:
KIST Publication > Article
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