title: Electrochemical Performance and Storage Mechanism of Ag2Mo2O7Micro-rods as the Anode Material for Lithium-Ion Batteries.
abstract: Ag2Mo2O7micro-rods are prepared by one-step hydrothermal method and their lithium electrochemical properties, as the anode for lithium-ion batteries, are comprehensively studied in terms of galvanostatic charge-discharge cycling, cyclic voltammetry, and rate performance measurements. The electrode delivers a high reversible capacity of 825 mAh g-1at a current density of 100 mA g-1and a superior rate capability with a discharge capacity of 263 mAh g-1under the high current density of 2 Ag-1. The structural transition and phase evolution of Ag2Mo2O7were investigated by using ex situ XRD and TEM. The Ag2Mo2O7electrode is likely to be decomposed into amorphous molybdenum, Li2O, and metallic silver based on the conversion reaction. Silver nanoparticles are not involved in the subsequent electrochemical cycles to form a homogeneous conducting network. Such in situ decomposition behavior provides an insight into the mechanism of the electrochemical reaction for the anode materials and would contribute to the design of new electrode materials in future.
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: Meina
authors.initials: M
authors.lastname: Zhang
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: Nan
authors.initials: N
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Rare Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun, 130022, P.R. China.
authors.forename: Xin
authors.initials: X
authors.lastname: Ge
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: Hong
authors.initials: H
authors.lastname: Chen
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: 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.identifier: http://orcid.org/0000-0001-6413-0689
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, Jilin University, Changchun, 130012, P.R. China.
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
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, Jilin University, Changchun, 130012, P.R. China.
authors.forename: Chunzhong
authors.initials: C
authors.lastname: Wang
keywords: Ag2Mo2O7 micro-rods; anode materials; energy conversion; lithium-ion batteries; storage mechanism