期刊
ACS APPLIED ENERGY MATERIALS
卷 5, 期 5, 页码 5508-5512出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.2c00648
关键词
TiNbO4; lithium battery; pseudocapacitance; intrinsic intercalation pseudocapacitance; anode; Li-ion battery; nanostructuring
资金
- Basic Science Research Program through the National Research Foundation (NRF) of Korea - Ministry of Science and ICT [NRF-2022R1A2C2006654, NRF-2020R1C1C1008588]
- Ministry of Education [NRF-2018R1A6A1A03024231]
TiNbO4 is a recently discovered Li host material that stores Li-ions via a purely single-phase reaction. It demonstrates intercalation pseudocapacitance for Li storage in both bulk and nanostructured states, indicating an intrinsic pseudocapacitance mechanism for charge storage.
TiNbO4 is a recently discovered Li host material. Unlike most mixed oxides of Ti and Nb, TiNbO4 does not show a phase transformation for Li storage. It stores Li-ions via a purely single-phase reaction. In this work, we show that TiNbO4 stores Li-ions via intercalation pseudocapacitance in both bulk and nanostructured states. The rate performance and capacity of TiNbO4 are independent of nanostructuring, indicating that TiNbO4 stores charges through an intrinsic pseudocapacitance mechanism.
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