Facile synthesis and electrochemical properties of Sn-doped KMn8O16 in lithium-ion battery applications
- 10 Downloads
KMn8O16 nanorods were synthesized via a reflux method with MnSO4·H2O and KMnO4 as reactants and SnCl4·5H2O as dopant. The microstructures and morphologies of the KMn8O16 nanorods and Sn4+-doped KMn8O16 nanorods were characterized using XRD, BET, SEM, EDX, and TEM. The electrochemical measurements demonstrated that ion-doped KMn8O16 nanorods (molar ratio of Sn4+ and KMn8O16 is 0.03) presented a much higher reversible discharge capacity (151.4 mAh g−1) and went up to a discharge capacity of 159.1 mAh g−1 after 100 cycles, compared with non-doped KMn8O16 nanorods (129.8 mAh g−1) as cathode materials in lithium-ion battery (LIB). These results demonstrate that the Sn4+ doping on the crystal structure of KMn8O16 can enhance the electrochemical property of material during the charging and discharging process.
KeywordsNanorods KMn8O16 Cathode material Lithium-ion battery
This work was financially supported by an open fund by the Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (KFK1510) (a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)) and State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology (GCTKF2014013).
- 4.Zhong YJ, Wu ZG, Li JT, Xiang W, Guo XD, Zhong BH, Wang XL (2018) Synthesis and lithium-ion storage performances of LiFe0.5 Co0.5PO4/C nanoplatelets and nanorods. Ionics 24:2275–2285Google Scholar
- 28.Sun M, Ye F, Lan B, Yu L, Cheng XL, Liu SN, Zhang XQ (2012) One-step hydrothermal synthesis of Sn-doped OMS-2 and their electrochemical performance. Int J Electrochem Sci 7:9278–9289Google Scholar
- 31.Zheng H, Wang T, Zhao R, Chen J, Li L (2018) Cryptomelane-type manganese oxide (KMn8O16) nanorods cathode materials synthesized by a rheological phase for lithium ion batteries. In Proceedings of the IOP Conference Series: Earth and Environmental Science: 022012Google Scholar