Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 30, Pages 15523-15528Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta03225c
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Funding
- National Natural Science Foundation of China [50972017, 21371023]
- Research Fund for the Doctoral Program of Higher Education of China [20101101110026]
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Hierarchical cubed LiNi1/3Co1/3Mn1/3O2 (CH-NCM) with enhanced growth of electrochemically active planes is synthesized using cube structured MnCO3 as a self-template, which is synthesized by a fast, simple, and surfactant-free co-precipitation method. The CH-NCM cathode has a reversible discharge capacity as high as 220.9, 216.2, 211.4, 189.6, 171.7 and 144.5 mA h g(-1) at 0.1, 0.5, 1, 2, 5, and 10 C, respectively. After 100 cycles, the capacity retention is 83.34% at 0.1 C. The superior electrochemical performance can be ascribed to the special cube-shaped hierarchical structure and enhanced growth of electrochemically active surface planes of CH-NCM. The primary nanoparticles with enhanced growth of electrochemically active surface planes guarantee ultrafast Li+ intercalation/deintercalation, while the submicroassemblies promise good structural stability.
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