氮掺杂碳包覆Na3V2PO42F3 钠离子电池正极材料的制备与性能
赵易飞, 杨振东, 李凤, 谢召军, 周震

Nitrogen-doped carbon-coated Na3V2PO42F3 cathode materials for sodium-ion batteriesPreparation and electrochemical performance
ZHAO Yifei, YANG Zhendong, LI Feng, XIE Zhaojun, ZHOU Zhen
图3 (a) NVPF(b) NVPF@C-N扫描电镜图;(c)(d) NVPF@C-N透射电镜图;(e)(g) NVPF@C-N元素分布图
Fig. 3 (a) SEM images of NVPF and (b) NVPF@C-N; (c) TEM image of NVPF@C-N; (d) HRTEM image of NVPF@C-N; (e)-(g) Elemental mapping images of NVPF@C-N