Premium
Crumpled ZnMn 2 O 4 Nanosheets for Long‐Term‐Cycling Lithium‐Ion Battery Anodes
Author(s) -
Gu Shaozhen,
Xu Jing,
Lu Bingan
Publication year - 2016
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201600087
Subject(s) - anode , materials science , lithium (medication) , electrochemistry , chemical engineering , battery (electricity) , electrospinning , ion , nanotechnology , chemistry , composite material , electrode , organic chemistry , medicine , power (physics) , physics , quantum mechanics , engineering , endocrinology , polymer
Crumpled zinc manganate nanosheets (ZnMn 2 O 4 NSs) have been synthesized by electrospinning and used as anode material for high‐performance lithium‐ion batteries. The crumpled ZnMn 2 O 4 NSs exhibit a reversible capacity of 461 mAh g −1 at 100 mA g −1 even after 500 cycles, excellent rate capability, and long cycling stability (almost no capacity degradation after the 20 th cycle). The excellent electrochemical performance may be mainly attributed to the novel crumpled nanostructure of the ZnMn 2 O 4 , which provides reduced diffusion length for the transport of Li + ions as well as mechanical buffer space to accommodate the volume variation during Li + insertion/extraction. The formation mechanism of electrospun crumpled ZnMn 2 O 4 NSs is further discussed in detail.