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Corn Stalks ‐Derived Carbon‐SnO 2 Composite as Anodes for Lithium‐Ion Batteries
Author(s) -
Zhang Zhiqiang,
Xue Jinshen,
Song Kexian,
Wang Xiaofeng,
Yu Kaifeng,
Li Xiangji
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201803384
Subject(s) - anode , materials science , lithium (medication) , composite number , carbon fibers , nanoparticle , electrochemistry , ion , composite material , chemical engineering , current density , nanotechnology , electrode , chemistry , medicine , physics , organic chemistry , quantum mechanics , engineering , endocrinology
SnO 2 is known as a promising anode candidate for lithium‐ion batteries (LIBs), but suffers from the low electrical conductivity and severe volume variation during cycling, which restraint its practical applications. To solve these issues, we successfully fabricated the three‐dimensional structure of carbon obtained from corn stalks and SnO 2 composites. The materials exhibit excellent electrochemical performance. After 100 cycles, it shows a reversible capacity of 691 mA h g −1 at a current density of 0.2 C. Excellent cycle performance is due to the unique structure, which has a strong internal chemical bond between the SnO 2 nanoparticles (SnO 2 NPs) and the carbon skeleton, preventing SnO 2 NPs from falling off the 3D network during the cycle. This work may provide a broader vision into synthesising C‐SnO 2 composites for high‐performance anode materials of LIBs.