title: Improved Lithium-Ion and Sodium-Ion Storage Properties from Few-Layered WS2Nanosheets Embedded in a Mesoporous CMK-3 Matrix.
abstract: An integrated WS2@CMK-3 nanocomposite has been prepared by a one-step hydrothermal method and then used as the anode material for lithium-ion and sodium-ion batteries. Ultrathin WS2nanosheets have been successfully embedded into the ordered mesoporous carbon (CMK-3) framework. Owing to the few-layered nanostructure of WS2, as well as the high electronic conductivity and the volume confinement effect of CMK-3, the material shows larger discharge capacity, better rate capability, and improved cycle stability than pristine WS2. When tested in lithium-ion batteries, the material delivers a reversible capacity of 720 mA h g-1after 100 cycles at a current density of 100 mA g-1. A large discharge capacity of 307 mA h g-1is obtained at a current density of 2 A g-1. When used in sodium-ion batteries, the material exhibits a capacity of 333 mA h g-1at 100 mA g-1without capacity fading after 70 cycles. A discharge capacity of 230 mA h g-1is obtained at 2 A g-1. This excellent performance demonstrates that the WS2@CMK-3 nanocomposite has great potential as a high-performance anode material for next-generation rechargeable batteries.
authors.affiliation: Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Pang
authors.affiliation: Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Gao
authors.affiliation: Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Yingying
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Yanming
authors.initials: Y
authors.lastname: Ju
authors.affiliation: Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Hailong
authors.initials: H
authors.lastname: Qiu
authors.affiliation: Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Yingjin
authors.initials: Y
authors.lastname: Wei
authors.affiliation: State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Bingbing
authors.initials: B
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Bo
authors.initials: B
authors.lastname: Zou
authors.affiliation: Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Fei
authors.initials: F
authors.lastname: Du
authors.affiliation: Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P. R. China.|State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China.
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
keywords: CMK-3; batteries; lithium; nanostructures; sodium; tungsten disulfide