title: In-situ formation of sandwiched structures of nanotube/CuxOy/Cu composites for lithium battery applications.
abstract: Development of materials and structures leading to lithium ion batteries with high energy and power density is a major requirement for catering to the power needs of present day electronic industry. Here, we report an in situ formation of a sandwiched structure involving single-walled carbon nanotube film, copper oxide, and copper during the direct synthesis of nanotube macrofilms over copper foils and their electrochemical performance in lithium ion batteries. The sandwiched structure showed a remarkably high reversible capacity of 220 mAh/g at a high cycling current of 18.6 A/g (50 C), leading to a significantly improved electrochemical performance which is extremely high compared to pure carbon nanotube and any other carbon based materials.
authors.affiliation: Department of Mechanical Engineering, University of Delaware, Newark, Delaware 19716, USA.
authors.forename: Subramanian
authors.initials: S
authors.lastname: Venkatachalam
authors.forename: Hongwei
authors.initials: H
authors.lastname: Zhu
authors.forename: Charan
authors.initials: C
authors.lastname: Masarapu
authors.forename: KaiHsuan
authors.initials: K
authors.lastname: Hung
authors.forename: Z
authors.initials: Z
authors.lastname: Liu
authors.forename: K
authors.initials: K
authors.lastname: Suenaga
authors.forename: Bingqing
authors.initials: B
authors.lastname: Wei