Open AccessSynthesis and electrochemical performance of ropelike LiNi0.8Co0.15Al0.05O2 fiber with nano-building blocks
Author(s) -
Linsen Zhang,
Zhenjiang Zhao,
Xiaofeng Li,
Hua Fang,
Lixia Wang,
Yanhua Song,
Xiaodong Jia
Publication year - 2020
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/ab67fb
Subject(s) - materials science , electrochemistry , electrospinning , cathode , fiber , diffusion , sintering , chemical engineering , nano , ion , nanoparticle , electrode , nanotechnology , composite material , chemistry , polymer , organic chemistry , physics , engineering , thermodynamics
A ropelike LiNi 0.8 Co 0.15 Al 0.05 O 2 (NCA) fiber with superior rate capability and cycling stability was successfully synthesized via electrospinning and sintering as a cathode material for Li-ion batteries. The NCA fiber that exhibited excellent electrochemical performance as a cathode for Li-ion batteries was stacked and assembled from numerous nanoparticles. The NCA fiber delivered a high reversible capacity of 206.4 mAh g −1 at 0.1 C, and maintained 75% capacity retention after 100 cycles at 1 C. The high rate capability and outstanding cyclic stability were due to the ropelike fiber structure that shorten the Li + diffusion path, improved the Li + diffusion coefficient, and maintained the fiber structure during cycling.