Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4767515 | Electrochimica Acta | 2017 | 8 Pages |
Abstract
Because of high lithium storage capacity, high first coulombic efficiency and low cost, Li2MoO3 has become a very attractive anode material for lithium-ion batteries. However, its cycling stability and severe polarization need further improvement. Besides, its reaction mechanism is unclear. In this work, Li2MoO3 is synthesized through ball milling and thermal reduction, and its electrochemical performance and reaction mechanism are investigated as anodes for lithium-ion batteries. The synthesized Li2MoO3 shows excellent cycling stability with high capacity. At a current density of 100 mA gâ1, it presents a first discharge capacity of about 835 mAh gâ1 with an initial coulombic efficiency of 97.6%. After 150 cycles, a discharge capacity of 902 mAh gâ1 is preserved. At a current density of 1600 mA gâ1, the compound exhibits a stable discharge capacity of about 556 mAh gâ1. It is revealed that the synthesized Li2MoO3 follows mixed insertion/conversion reaction mechanism.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Hongyan He, Dan Li, Mingqi Li,