Carbon-Coated Li<sub>3</sub> VO<sub>4</sub> Spheres as Constituents of an Advanced Anode Material for High-Rate Long-Life Lithium-Ion Batteries.
basic_science · Level V
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- Record sourced from PubMed, PMID 28640524.
- Also identified by DOI 10.1002/adma.201701571.
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Abstract
Lithium-ion batteries are receiving considerable attention for large-scale energy-storage systems. However, to date the current cathode/anode system cannot satisfy safety, cost, and performance requirements for such applications. Here, a lithium-ion full battery based on the combination of a Li<sub>3</sub> VO<sub>4</sub> anode with a LiNi<sub>0.5</sub> Mn<sub>1.5</sub> O<sub>4</sub> cathode is reported, which displays a better performance than existing systems. Carbon-coated Li<sub>3</sub> VO<sub>4</sub> spheres comprising nanoscale carbon-coating primary particles are synthesized by a morphology-inheritance route. The observed high capacity combined with excellent sample stability and high rate capability of carbon-coated Li<sub>3</sub> VO<sub>4</sub> spheres is superior to other insertion anode materials. A high-performance full lithium-ion battery is fabricated by using the carbon-coated Li<sub>3</sub> VO<sub>4</sub> spheres as the anode and LiNi<sub>0.5</sub> Mn<sub>1.5</sub> O<sub>4</sub> spheres as the cathode; such a cell shows an estimated practical energy density of 205 W h kg<sup>-1</sup> with greatly improved properties such as pronounced long-term cyclability, and rapid charge and discharge.