title: Growth of copper oxide nanocrystals in metallic nanotubes for high performance battery anodes.
abstract: A rational integration of 1D metallic nanotubes and oxide nanoparticles has been demonstrated as a viable strategy for the production of both highly stable and efficient anodes for lithium ion batteries. We encapsulated copper oxide (CuO) nanoparticles in ultra-long metallic copper nanotubes with engineered interspaces, and explored their electrochemical properties. Such a hierarchical architecture provides three important features: (i) a continuous nanoscale metallic Cu shell to minimize electronic/ionic transmitting impedance; (ii) a unique quasi-one-dimensional structure with a large aspect ratio to reduce self-aggregation; (iii) free space for volume expansion of CuO nanoparticles and stable solid-electrolyte interphase (SEI) formation. The anode materials with such hierarchical structures have high specific capacity (around 600 mA h g-1at a current density of 0.1 A g-1), excellent cycling stability (over 94% capacity retention after 200 cycles) and superb reversible capacity of 175 mA h g-1at a high charging rate of 15 A g-1.
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Beijing Key Laboratory for Nanomaterials and Nanodevices, Institute of Physics, Chinese Academy of Sciences, No. 8, 3rd South Street, Zhongguancun, Haidian District, Beijing, 100190, China. wjliang@iphy.ac.cn and State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, No. 218, Yan'an 3 road, Shinan District, Shandong Qingdao, 266071, China.
authors.forename: Yuxin
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, No. 218, Yan'an 3 road, Shinan District, Shandong Qingdao, 266071, China.
authors.forename: Shanjun
authors.initials: S
authors.lastname: Mu
authors.affiliation: State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, No. 218, Yan'an 3 road, Shinan District, Shandong Qingdao, 266071, China.
authors.forename: Wanfu
authors.initials: W
authors.lastname: Sun
authors.affiliation: State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, No. 218, Yan'an 3 road, Shinan District, Shandong Qingdao, 266071, China.
authors.forename: Quanzhen
authors.initials: Q
authors.lastname: Liu
authors.affiliation: State Key Laboratory for Heavy Oil Processing, PetroChina Key Laboratory of Catalysis, China University of Petroleum, Qingdao 266580, China.
authors.forename: Yanpeng
authors.initials: Y
authors.lastname: Li
authors.affiliation: State Key Laboratory for Heavy Oil Processing, PetroChina Key Laboratory of Catalysis, China University of Petroleum, Qingdao 266580, China.
authors.forename: Zifeng
authors.initials: Z
authors.lastname: Yan
authors.affiliation: Queensland Micro- and Nanotechnology Centre Nathan campus, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia. ziyanghuo@gmail.com.
authors.forename: Ziyang
authors.initials: Z
authors.lastname: Huo
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Beijing Key Laboratory for Nanomaterials and Nanodevices, Institute of Physics, Chinese Academy of Sciences, No. 8, 3rd South Street, Zhongguancun, Haidian District, Beijing, 100190, China. wjliang@iphy.ac.cn.
authors.forename: Wenjie
authors.initials: W
authors.lastname: Liang