Lithium-ion full cell with high energy density using nickel-rich LiNi0.8Co0.1Mn0.1O2 cathode and SiO−C composite anode
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A high-energy-density Li-ion battery with excellent rate capability and long cycle life was fabricated with a Ni-rich layered Li- Ni0.8Mn0.1Co0.1O2 cathode and SiO−C composite anode. The Ni0.8Mn0.1Co0.1O2 and SiO−C exhibited excellent electrochemical performance in both half and full cells. Specifically, when integrated into a full cell configuration, a high energy density (280 Wh·kg−1) with excellent rate capability and long cycle life was attained. At 0.5C, the full cell retained 80% of its initial capacity after 200 charge/discharge cycles, and 60% after 600 cycles, indicating robust structural tolerance for the repeated insertion/extraction of Li+ ions. The rate performance showed that, at high rate of 1C and 2C, 96.8% and 93% of the initial capacity were retained, respectively. The results demonstrate strong potential for the development of high energy density Li-ion batteries for practical applications.
Keywordshigh energy density full cell rate performance high capacity cathode
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This work was financially supported by National R&D Program of China (No. 2016YFB0100301).
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