Substantial doping engineering in Na 3 V 2-x Fe x (PO 4 ) 3 (0≤x≤0.15) as high-rate cathode for sodium-ion battery
Institute of Materials Research and Engineering, Hubei University of Education, Wuhan, 430205, PR China;
Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore;
Institute for Functional Materials, Hubei University of Education, Wuhan, 430205, PR China;
National University of Singapore Suzhou Research Institute, Suzhou, 215123, China;
Abstract(#br)Due to its high theoretical capacity and stable structure, Na 3 V 2 (PO 4 ) 3 has gained much attention as a potential cathode for sodium-ion batteries (SIBs) in large-scale energy storage applications. However, poor electronic conductivity usually results in the low rate capacity and poor cyclability, limiting its application. Herein, we successfully introduce Fe 3+ to substitute V 3+ through doping engineering. Compared with Na 3 V 2 (PO 4 ) 3 /C, an excellent initial high-rate ca... 更多
NASICON-Structure; Sodium-ion battery; Doping engineering; High-rate performance;
Materials & Design
Elsevierjournal
2020
Elsevier Ltd