Phase-pure 3-NiMoO4 yolk-shell spheres for lithium-ion battery anodes were prepared for the first time by one-pot spray pyrolysis, and their electrochemical properties were investigated. The yolk-shellstructured 3-NiMoO4 powders exhibited high initial discharge/charge capacities (1634/1253 mA h g1) at a current density of 1000 mAg1. After 200 cycles, these powders exhibited a high discharge capacity of 1292 mAhg1, whereas the initial discharge capacity (1341 mAhg1) of the filled structured NiMoO4 powders was dramatically decreased to 479 mAhg1. The significant enhancement of the cycling performance of the 3-NiMoO4 powders with ultrafine crystallite size was attributed to the structural stability of the yolk-shell structure.
Bibliographical noteFunding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST) (No. 2013R1A2A1A01006545 ).
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- Energy conversion
- Energy storage materials
- Lithium ion batteries
- Synthesis design
ASJC Scopus subject areas
- Chemical Engineering(all)