期刊
JOURNAL OF POWER SOURCES
卷 342, 期 -, 页码 495-503出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.12.095
关键词
Nickel-rich layered cathode; LiNi0.8Co0.1Mn0.1O1.1; Lithium ion batteries; Spray pyrolysis; Nanocomposite
资金
- National Basic Research Program of China [2014CB643406]
- Hunan Provincial Innovation Foundation for Postgraduate [CX2016B043]
A short process for the efficient utilization of transition-metal chlorides in lithium-ion batteries (LIBs) is proposed. A uniformly dispersed tri-component nanocomposite of Ni0.8Co0.1Mn0.1O1.1 microspheres with a porous structure has been prepared from the solution of transition-metal chlorides via spray pyrolysis. When evaluated as anode for LIBs, the Ni0.8Co0.1Mn0.1O1.1 nanocomposite exhibits a reversible capacity of 1180 mAh g(-1) after 120 cycles. More strikingly, the nanoparticles-assembled Ni0.8Co0.1Mn0.1O1.1 precursor has its unique advantages in synthesizing well-ordered layered LiNi0.8 Co(0.1)oMn(0.1)O(2) Owning to itsexcellent atomic uniformity, porous structure and Ni3+-rich surface. The as-prepared cathode material shows excellent structural stability. Discharge capacities of 173 mAh g-1 after 100 cycles at 1 C (1 C = 180 mA g(-1)) between 2.8 and 4.3 V are consistently obtained, corresponding to 95.6% capacity retention. These outstanding electrochemical results are obtained with minimal process optimization, indicating that spray pyrolysis is an efficient, robust synthesis technique for the production of Ni-rich layered cathode from solution of transition-metal chlorides. (C) 2016 Elsevier B.V. All rights reserved.
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