Zheng Kunxiong, Xu Shitan, Yao Yu, Chen Dong, Liu Lin, Xu Chen, Feng Yuezhan, Rui Xianhong, Yu Yan
School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.
Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, China.
Chem Commun (Camb). 2022 Sep 15;58(74):10349-10352. doi: 10.1039/d2cc03281c.
A functional NaV(PO)OF (NVPOF) cathode with a multi-component (NaV(PO), VO, and reduced graphene oxide) surface coating is developed a facile hydrothermal reaction followed by calcination, and exhibits high reversible capability, and long-term cycling stability even at a low temperature of -40 °C. It is demonstrated that the multi-component-coating layer can significantly accelerate the e/Na transport and reduce the interfacial resistance at low temperature. This work provides a novel strategy to boost the kinetics and stability of electrode materials for low-temperature sodium ion batteries.
