title: Simple fabrication of flexible electrodes with high metal-oxide content: electrospun reduced tungsten oxide/carbon nanofibers for lithium ion battery applications.
abstract: A one-step and mass-production synthetic route for a flexible reduced tungsten oxide-carbon composite nanofiber (WO(x)-C-NF) film is demonstrated via an electrospinning technique. The WO(x)-C-NF film exhibits unprecedented high content of metal-oxides (∼ 80 wt%) and good flexibility (the tensile strength of the specimen was 6.13 MPa) without the use of flexible support materials like CNTs or graphene. The WO(x)-C-NF film is directly used as an anode in a lithium ion battery (LIB). Compared with previously reported tungsten oxide electrodes, the WO(x)-C-NF film exhibits high reversible capacity (481 mA h g(-1)total electrode), stable cycle, and improved rate performance, without the use of additive carbon, a polymeric binder and a current collector. Moreover, control electrodes fabricated by conventional processes support the positive effects of both the freestanding electrode and metal-oxide embedded carbon 1-D nanofiber structure.
authors.affiliation: Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea. Jinwoo03@postech.ac.kr.
authors.forename: Jaehyuk
authors.initials: J
authors.lastname: Lee
authors.forename: Changshin
authors.initials: C
authors.lastname: Jo
authors.forename: Bangrock
authors.initials: B
authors.lastname: Park
authors.forename: Woonbong
authors.initials: W
authors.lastname: Hwang
authors.forename: Hyung Ik
authors.initials: HI
authors.lastname: Lee
authors.forename: Songhun
authors.initials: S
authors.lastname: Yoon
authors.forename: Jinwoo
authors.initials: J
authors.lastname: Lee