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Ni-Doped Layered Manganese Oxide as a Stable Cathode for Potassium-Ion Batteries.
ACS Appl Mater Interfaces. 2020 Mar 04; 12(9):10490-10495.AA

Abstract

Potassium-ion batteries (PIBs) are one of the promising alternatives to lithium-ion batteries (LIBs). Layered potassium manganese oxides are more attractive as cathodes for PIBs due to their high capacity, low cost, and simple synthesis method but suffer from the Jahn-Teller effect of Mn3+ in material synthesis. Here, a layered P3-type K0.67Mn0.83Ni0.17O2 material with a suppressed Jahn-Teller effect was successfully synthesized. K0.67Mn0.83Ni0.17O2 delivers a specific capacity of 122 mAh g-1 at 20 mA g-1 in the first discharge, superior rate performance, and good cycling stability (75% capacity retention cycled at a high rate of 500 mA g-1 after 200 cycles). Besides, the K ion diffusion coefficient of the K0.67Mn0.83Ni0.17O2 electrode can reach 10-11 cm2 s-1, which are larger than the Ni-free electrode. The X-ray diffraction and electron diffraction analyses demonstrate that appropriate nickel could suppress the Jahn-Teller effect and reduce the structural deterioration, resulting in more migration pathways for K ions, thus enhancing the rate capability and cycling performance. These results provide a strategy to develop high-performance cathode materials for PIBs and deepen the understanding of structural deterioration in layered manganese-based oxides.

Authors+Show Affiliations

Center of Energy Storage Materials & Technology, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, and Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China.Center of Energy Storage Materials & Technology, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, and Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China.Center of Energy Storage Materials & Technology, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, and Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China.Center of Energy Storage Materials & Technology, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, and Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China.Center of Energy Storage Materials & Technology, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, and Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China.Center of Energy Storage Materials & Technology, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, and Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China. National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1-1-1, Tsukuba 305-8568, Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32049481

Citation

Bai, Peilai, et al. "Ni-Doped Layered Manganese Oxide as a Stable Cathode for Potassium-Ion Batteries." ACS Applied Materials & Interfaces, vol. 12, no. 9, 2020, pp. 10490-10495.
Bai P, Jiang K, Zhang X, et al. Ni-Doped Layered Manganese Oxide as a Stable Cathode for Potassium-Ion Batteries. ACS Appl Mater Interfaces. 2020;12(9):10490-10495.
Bai, P., Jiang, K., Zhang, X., Xu, J., Guo, S., & Zhou, H. (2020). Ni-Doped Layered Manganese Oxide as a Stable Cathode for Potassium-Ion Batteries. ACS Applied Materials & Interfaces, 12(9), 10490-10495. https://doi.org/10.1021/acsami.9b22237
Bai P, et al. Ni-Doped Layered Manganese Oxide as a Stable Cathode for Potassium-Ion Batteries. ACS Appl Mater Interfaces. 2020 Mar 4;12(9):10490-10495. PubMed PMID: 32049481.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ni-Doped Layered Manganese Oxide as a Stable Cathode for Potassium-Ion Batteries. AU - Bai,Peilai, AU - Jiang,Kezhu, AU - Zhang,Xueping, AU - Xu,Jialu, AU - Guo,Shaohua, AU - Zhou,Haoshen, Y1 - 2020/02/24/ PY - 2020/2/13/pubmed PY - 2020/2/13/medline PY - 2020/2/13/entrez KW - Jahn−Teller effect KW - nickel doping KW - potassium-ion batteries KW - rate capability KW - structural deterioration SP - 10490 EP - 10495 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 12 IS - 9 N2 - Potassium-ion batteries (PIBs) are one of the promising alternatives to lithium-ion batteries (LIBs). Layered potassium manganese oxides are more attractive as cathodes for PIBs due to their high capacity, low cost, and simple synthesis method but suffer from the Jahn-Teller effect of Mn3+ in material synthesis. Here, a layered P3-type K0.67Mn0.83Ni0.17O2 material with a suppressed Jahn-Teller effect was successfully synthesized. K0.67Mn0.83Ni0.17O2 delivers a specific capacity of 122 mAh g-1 at 20 mA g-1 in the first discharge, superior rate performance, and good cycling stability (75% capacity retention cycled at a high rate of 500 mA g-1 after 200 cycles). Besides, the K ion diffusion coefficient of the K0.67Mn0.83Ni0.17O2 electrode can reach 10-11 cm2 s-1, which are larger than the Ni-free electrode. The X-ray diffraction and electron diffraction analyses demonstrate that appropriate nickel could suppress the Jahn-Teller effect and reduce the structural deterioration, resulting in more migration pathways for K ions, thus enhancing the rate capability and cycling performance. These results provide a strategy to develop high-performance cathode materials for PIBs and deepen the understanding of structural deterioration in layered manganese-based oxides. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/32049481/Ni_Doped_Layered_Manganese_Oxide_as_a_Stable_Cathode_for_Potassium_Ion_Batteries_ L2 - https://dx.doi.org/10.1021/acsami.9b22237 DB - PRIME DP - Unbound Medicine ER -
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