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Synthesis of Nanostructured Mat as Flexible Electrode for Advanced Lithium Ion Batteries Via Electrospinning
Author(s) -
Liu Jifei,
Dai Jianfeng,
Wang Qing,
Li Weixue
Publication year - 2018
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201700112
Subject(s) - electrochemistry , lithium (medication) , materials science , electrode , electrospinning , battery (electricity) , microstructure , ion , chemical engineering , cathode , amorphous solid , lithium ion battery , nanoparticle , nanotechnology , carbon fibers , diffusion , composite material , chemistry , polymer , organic chemistry , medicine , power (physics) , physics , quantum mechanics , engineering , endocrinology , composite number , thermodynamics
The ions transport channel like network structure is build between active materials, due to its unique low dimensional properties. Microstructure indicates that the tiny LiFePO 4 nanoparticles with average size of ≈7–9 nm embedded in the amorphous carbon matrix. When the LiFePO 4 ‐CNFs is directly applied as flexible cathode electrode for lithium‐ion battery, which has high initial discharge capacity of 134 mAh g −1 at 0.5 C (1C = 170 mAh g −1 ) rate and stability cycling performance after 300 cycles. Further electrochemistry investigation reveals that the flexible one‐dimentional structure of CNFs enable it to release the mechanical deformation resulting from lithium ion insert and extract the electrodes, which resulted in a superior diffusion coefficient of lithium ions up to 2.4 × 10 −12 cm 2 s −1 .