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Morphology and size controlled synthesis of the hierarchical structured Li1.2Mn0.54Ni0.13Co0.13O2 cathode materials for lithium ion batteries
- Source :
- Electrochimica Acta. 297:406-416
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Rational morphology design and size control have been demonstrated an effective strategy to improve the electrochemical performance of cathode materials for lithium ion batteries. In this work, different morphologic Li-rich layered cathode materials Li1.2Mn0.54Ni0.13Co0.13O2 with hierarchical structures are conveniently synthesized through a facile solvothermal route followed by calcination treatment. The morphology and size of the as-prepared precursors are easily regulated by changing the addition of organic solvent with different viscosity and polarity. And their critical impacts on the microstructure and electrochemical property of Li-rich layered electrodes are further systematically investigated. In particular, the hierarchical structured Li1.2Mn0.54Ni0.13Co0.13O2 microspheres exhibit superior electrochemical performance and excellent cycling stability among all samples, delivering a discharge capacity of 281.9 mAh g−1 at 0.1 C with 84.8% retention after 100 cycles. A high discharge capacity of 143.0 mAh g−1 still can be achieved even at a high current density of 5 C. Besides, this work would also provide an effective and feasible strategy for the morphology controllable synthesis of high energy density oxide electrode materials for lithium ion batteries.
- Subjects :
- Materials science
General Chemical Engineering
Oxide
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Microstructure
Electrochemistry
01 natural sciences
Cathode
0104 chemical sciences
law.invention
chemistry.chemical_compound
chemistry
Chemical engineering
law
Electrode
Lithium
Calcination
0210 nano-technology
Current density
Subjects
Details
- ISSN :
- 00134686
- Volume :
- 297
- Database :
- OpenAIRE
- Journal :
- Electrochimica Acta
- Accession number :
- edsair.doi...........739002f7b7d4ae622e03f8bef11b7d85