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Solvothermal Synthesis of Yolk–Shell CeVO 4 /C Microspheres as a High‐Performance Anode for Lithium‐Ion Batteries
Author(s) -
Jin Rencheng,
Liu Chunping,
Sun Lin,
Zhang Zhenjiang,
Chen Gang
Publication year - 2016
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201500466
Subject(s) - anode , materials science , carbonization , lithium (medication) , microsphere , chemical engineering , current density , porosity , shell (structure) , specific surface area , lithium ion battery , phase (matter) , nanotechnology , battery (electricity) , electrode , composite material , chemistry , catalysis , organic chemistry , scanning electron microscope , medicine , power (physics) , physics , quantum mechanics , engineering , endocrinology
Yolk–shell CeVO 4 /C microspheres are fabricated by a facile solvothermal method, followed by a carbonization process, by using glucose as a precursor. The hierarchical structures supply a high specific surface area and alleviate volume changes during the lithiation–delithiation process. Owing to the unique porous structural features, the yolk–shell CeVO 4 /C microspheres present a high lithium storage capacity, reaching 580 mAh g −1 at a current density of 100 mA g −1 . Furthermore, the microspheres exhibit good cycle stability and high rate performance, for example, in the 100th cycle they display a capacity of 448 mAh g −1 at a current density 100 mA g −1 and a capacity of 292 mAh g −1 at 1000 mA g −1 in the 40th cycle; these values are better than those of pure‐phase yolk–shell CeVO 4 microspheres.