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Flexible SnO 2 /N‐Doped Carbon Nanofiber Films as Integrated Electrodes for Lithium‐Ion Batteries with Superior Rate Capacity and Long Cycle Life
Author(s) -
Xia Lu,
Wang Suqing,
Liu Guoxue,
Ding Liangxing,
Li Dongdong,
Wang Haihui,
Qiao Shizhang
Publication year - 2016
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201503315
Subject(s) - anode , lithium (medication) , materials science , electrospinning , nanotechnology , flexibility (engineering) , carbon fibers , nanofiber , electrode , doping , optoelectronics , composite material , chemistry , composite number , medicine , endocrinology , polymer , statistics , mathematics
A freestanding SnO 2 @N‐CNF film prepared by electrospinning exhibits excellent flexibility and a high surface area of 506 m 2 g −1 . When used as an anode for lithium‐ion batteries, a high reversible capacity of 754 mAh g −1 is maintained after the 300 th cycle at 1 A g −1 . Even when the current density increases to 5 A g −1 , the SnO 2 @N‐CNF still delivers 245.9 mAh g −1 .