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Abstract LiCoO2 nano-particles precursor was synthesized through a mixed-alkalis (LiOH-NaOH) hydrothermal reaction, and finally sintered into LiCoO2 nanobricks with a sickness of ~300 nm. This LiCoO2 nanobrick cathode delivered a specific… Click to show full abstract
Abstract LiCoO2 nano-particles precursor was synthesized through a mixed-alkalis (LiOH-NaOH) hydrothermal reaction, and finally sintered into LiCoO2 nanobricks with a sickness of ~300 nm. This LiCoO2 nanobrick cathode delivered a specific capacity of 131.8 mAh g−1 at 1 C between 3.0 and 4.2 V and 90% capacity retention after 100 cycles. Those synthesized LiCoO2 nanobricks were further treated by surface Al3+ doping to achieve much enhanced 4.5 V lithium storage capability and cycling stability. EIS results showed the surface Al3+ doping operation can signification decrease the charge-transfer resistances of the LiCoO2 cathodes for both before and after cyclings.
Journal Title: Ceramics International
Year Published: 2018
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