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Carbon‐Coated Li 3 VO 4 Spheres as Constituents of an Advanced Anode Material for High‐Rate Long‐Life Lithium‐Ion Batteries
Author(s) -
Shen Laifa,
Chen Shuangqiang,
Maier Joachim,
Yu Yan
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201701571
Subject(s) - anode , materials science , cathode , lithium (medication) , carbon fibers , battery (electricity) , chemical engineering , coating , ion , energy storage , nanotechnology , composite material , electrode , composite number , organic chemistry , chemistry , medicine , power (physics) , physics , quantum mechanics , engineering , endocrinology
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 3 VO 4 anode with a LiNi 0.5 Mn 1.5 O 4 cathode is reported, which displays a better performance than existing systems. Carbon‐coated Li 3 VO 4 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 3 VO 4 spheres is superior to other insertion anode materials. A high‐performance full lithium‐ion battery is fabricated by using the carbon‐coated Li 3 VO 4 spheres as the anode and LiNi 0.5 Mn 1.5 O 4 spheres as the cathode; such a cell shows an estimated practical energy density of 205 W h kg −1 with greatly improved properties such as pronounced long‐term cyclability, and rapid charge and discharge.