快离子导体
电化学
阴极
钠
插层(化学)
钠离子电池
化学工程
材料科学
化学
无机化学
纳米技术
电解质
物理化学
电极
冶金
工程类
法拉第效率
作者
He Fa,Jiyang Kang,Tongli Liu,Hongjie Deng,Benhe Zhong,Yan Sun,Zhenguo Wu,Xiaodong Guo
标识
DOI:10.1021/acs.iecr.2c04054
摘要
The polyanion sodium vanadium phosphate Na3V2(PO4)3 (NVP) belongs to the sodium superionic conductors (NASICON) material. Its NASICON structural backbone forms a stable sodium accommodation site, and the open three-dimensional ion transport channel is conducive to the rapid intercalation/deintercalation of Na ions. As a cathode material for batteries, Na3V2(PO4)3 has an extremely high specific capacity, voltage plateau, and cycle stability, meeting the requirements of low cost and high safety. It is a large-scale energy storage material with ideal potential and has received extensive attention. However, the low electronic conductivity of Na3V2(PO4)3 material hinders its further application. Based on the current demand for large-scale application of sodium-ion batteries, this paper re-examines the effect of existing research progress on promoting practical applications and the problems that need to be solved in the future from the perspective of raw material cost system and process complexity. The paper first introduces the structural characteristics of Na3V2(PO4)3 material and the mechanism of sodium-ion intercalation/deintercalation. Then it introduces the synthesis methods, such as the sol–gel method, hydrothermal method, and solid-phase reaction method. In addition, it summarizes the modification studies of Na3V2(PO4)3, including carbon coating, ion doping and, morphology control, design of composite materials and structures based on Na3V2(PO4)3. Finally, it discusses the possible future development of Na3V2(PO4)3.
科研通智能强力驱动
Strongly Powered by AbleSci AI