期刊论文

Jiang, Hongmei

英文

Powder Technology

0032-5910

2020

364

70-77

10.1016/j.powtec.2020.01.055

In summary, carbon-encapsulated, chlorine-doped Na3V2(PO4)3 cathode for sodium ion battery have been prepared by sol-gel route and subsequent high-temperature calcination. The as-prepared composite with proper doped chlorine (NVP@C/Cl-30) demonstrates outstanding rate performance and excellent cycling stability. NVP@C/Cl-30 delivers discharge capacity of 104.2, 86.4, 52.2 mAh g−1 at 40, 1000, 4000 mA g−1, severally, much higher than those for NVP@C (74.2, 46.4, 21.1 mAh g−1). Capacity retention

本校为第一且通讯机构

NASICON-structured Na3V2(PO4)3 possessing three-dimensional channel for sodium ion migration demonstrates promising prospect as cathode for sodium ion battery due to good thermal stability and large theoretical capacity. Herein, carbon encapsulation and chlorine doping are employed to improve sodium storage performances of Na3V2(PO4)3 through sol-gel method. Carbon-encapsulated chlorine-doped Na3V2(PO4)3 composites reveal raised electrochemical performance. Among composites, Na3V2(PO4)2.9Cl0.3@C ([email protected]/Cl-30) with proper chlorine ex...