Functional surface modification of P2-type layered Mn-based oxide cathode by thin layer of NASICON for sodium-ion batteries

Yuqiu Shao,Xinxin Wang,Bingchen Li,Huirong Ma,Jingjing Chen,Dajian Wang,Chenlong Dong,Zhiyong Mao

Electrochimica Acta（2023）

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摘要

•Na0.612K0.056MnO2 coated by Na3Zr2Si2PO12 was synthesized by sol-gel coating method.•The composite cathode manifests enhanced capacity and stability at a high current.•The composite cathode shows excellent charge/discharge ability at −20 °C.•The performance is enhanced by high diffusion coefficient and structural stability.

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关键词

Sodium ion batteries,P2-phase,NASICON,Surface coating

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