A carbon nanotube-reinforced noble tin anode structure for lithium-ion batteries

A carbon nanotube (CNT)-reinforced noble tin anode structure in which CNTs fasten the tin layer to a copper underlayer has been fabricated using plating techniques so as to improve the cyclability of lithium-ion batteries. In this process, a Cu/CNTs composite layer, on one side of which CNTs protrud...

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Veröffentlicht in:Journal of applied electrochemistry 2016-03, Vol.46 (3), p.331-338
Hauptverfasser: Arai, Susumu, Fukuoka, Ryosuke
Format: Artikel
Sprache:eng
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Zusammenfassung:A carbon nanotube (CNT)-reinforced noble tin anode structure in which CNTs fasten the tin layer to a copper underlayer has been fabricated using plating techniques so as to improve the cyclability of lithium-ion batteries. In this process, a Cu/CNTs composite layer, on one side of which CNTs protrude from the surface, is formed using a reverse current electrodeposition technique. The surface of this composite layer is subsequently coated with a tin layer by a substitution-type electroless plating technique, resulting in the CNT-reinforced noble tin anode structure. The electrochemical characteristics of this noble tin anode structure have been evaluated and compared to those of a tin anode structure without CNTs. The noble tin anode structure shows significantly improved cyclability compared with the tin anode structure and maintains a higher reversible capacity of 591 mAh g −1 , a value that is 1.6 times the theoretical capacity of graphite, even after 30 cycles. Graphical Abstract
ISSN:0021-891X
1572-8838
DOI:10.1007/s10800-016-0933-5