title: Synthesis of one-dimensional copper sulfide nanorods as high-performance anode in lithium ion batteries.
abstract: Nanorod-like CuS and Cu2 S have been fabricated by a hydrothermal approach without using any surfactant and template. The electrochemical behavior of CuS and Cu2 S nanorod anodes for lithium-ion batteries reveal that they exhibit stable lithium-ion insertion/extraction reversibility and outstanding rate capability. Both of the electrodes exhibit excellent capacity retentions irrespective of the rate used, even at a high current density of 3200 mA g(-1) . More than 370 mAh g(-1) can be retained for the CuS electrode and 260 mAh g(-1) for the Cu2 S electrode at the high current rate. After 100 cycles at 100 mA g(-1) , the obtained CuS and Cu2 S electrodes show discharge capacities of 472 and 313 mAh g(-1) with retentions of 92% and 96%, respectively. Together with the simplicity of fabrication and good electrochemical properties, CuS and Cu2 S nanorods are promising anode materials for practical use the next-generation lithium-ion batteries.
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (PR China).
authors.forename: Xue
authors.initials: X
authors.lastname: Li
authors.forename: Xinyi
authors.initials: X
authors.lastname: He
authors.forename: Chunmei
authors.initials: C
authors.lastname: Shi
authors.forename: Bo
authors.initials: B
authors.lastname: Liu
authors.forename: Yiyong
authors.initials: Y
authors.lastname: Zhang
authors.forename: Shunqing
authors.initials: S
authors.lastname: Wu
authors.forename: Zizong
authors.initials: Z
authors.lastname: Zhu
authors.forename: Jinbao
authors.initials: J
authors.lastname: Zhao
mesh_terms: D003300:Copper; D011211:Electric Power Supplies; D004566:Electrodes; D008094:Lithium; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D043942:Nanotubes; D013440:Sulfides / Q000138:chemical synthesis*; D013501:Surface-Active Agents; D014961:X-Ray Diffraction
chemical_list: D013440:Sulfides; D013501:Surface-Active Agents; C099343:cuprous sulfide; D003300:Copper; D008094:Lithium
keywords: anode; batteries; copper sulfide; high performance; lithium