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Tuning local chemistry of P2 layered-oxide cathode for high energy and long cycles of sodium-ion battery by Wang, Chenchen (author);Liu, Luojia (author);Zhao, Shuo (author);Liu, Yanchen (author);Yang, Yubo (author);Yu, Haijun (author);Lee, Suwon (author);Lee, Gi-Hyeok (author);Kang, Yong-Mook (author);Liu, Rong (author);Li, Fujun (author);Chen, Jun (author) is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
What is Tuning local chemistry of P2 layered-oxide cathode for high energy and long cycles of sodium-ion battery about?
Layered transition-metal oxides have attracted intensive interest for cathode materials of sodium-ion batteries. However, they are hindered by the limited capacity and inferior phase transition due to the gliding of transition-metal layers upon Na^+^ extraction and insertion in the cathode materials. Here, we report that the large-sized K^+^ is riveted in the prismatic Na^+^ sites of P2-Na~0.612~K~0.056~MnO~2~ to enable more thermodynamically favorable Na^+^ vacancies. The Mn-O bonds are reinforced to reduce phase transition during charge and discharge. 0.901 Na^+^ per formula are reversibly extracted and inserted, in which only the two-phase transition of P2 ↔ P’2 occurs at low voltages. It exhibits the highest specific capacity of 240.5 mAh g^−1^ and energy density of 654 Wh kg^−1^ based on the redox of Mn^3+^/Mn^4+^, and a capacity retention of 98.2% after 100 cycles. This investigation will shed lights on the tuneable chemical environments of transition-metal oxides for advanced cathode materials and promote the development of sodium-ion batteries.
Who reads Tuning local chemistry of P2 layered-oxide cathode for high energy and long cycles of sodium-ion battery?
It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.
- Author
- Wang, Chenchen (author);Liu, Luojia (author);Zhao, Shuo (author);Liu, Yanchen (author);Yang, Yubo (author);Yu, Haijun (author);Lee, Suwon (author);Lee, Gi-Hyeok (author);Kang, Yong-Mook (author);Liu, Rong (author);Li, Fujun (author);Chen, Jun (author)
- Publisher
- Springer Science and Business Media LLC
- Published
- 2021
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Life Sciences)