Insights on the mechanism of Na-ion storage in expanded graphite anode

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成果类型：

期刊论文

作者：

Li, Xiaodan;Liu, Zhibin;Li, Jinliang*;Lei, Hang;Zhuo, Wenchen;...

通讯作者：

Li, Jinliang;Mai, Wenjie

作者机构：

[Li, JL; Mai, WJ; Zhuo, Wenchen; Lei, Hang; Li, Xiaodan; Li, Jinliang; Liu, Zhibin; Mai, Wenjie] Jinan Univ, Dept Phys, Guangdong Prov Engn Technol Res Ctr Vacuum Coatin, Siyuan Lab, Guangzhou 510632, Guangdong, Peoples R China.

[Pan, Likun] East China Normal Univ, Sch Phys & Elect Sci, Shanghai Key Lab Magnet Resonance, Shanghai 200062, Peoples R China.

[Zhuo, Wenchen; Lei, Hang] Jinan Univ, Dept Chem, Guangzhou 510632, Guangdong, Peoples R China.

[Qin, Wei] Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410114, Hunan, Peoples R China.

[Cai, Xiang] Guangdong Polytech, Dept Light Chem Engn, Foshan 528041, Guangdong, Peoples R China.

通讯机构：

[Li, JL; Mai, WJ] J

Jinan Univ, Dept Phys, Guangdong Prov Engn Technol Res Ctr Vacuum Coatin, Siyuan Lab, Guangzhou 510632, Guangdong, Peoples R China.

语种：

英文

关键词：

Expanded graphite;Sodiation-desodiation process;Operando Raman spectroscopies;Na-ion batteries

期刊：

能源化学(英文)

ISSN：

2095-4956

年：

2021

卷：

期：

页码：

56-62

DOI：

10.1016/j.jechem.2020.05.022

基金类别：

financial supports from the National Natural Science Foundation of China （51702056, 51772135）； the Ministry of Education of China （6141A02022516）； the Fundamental Research Funds for the Central Universities （21617330）； the China Postdoctoral Science Foundation （2017M622902, 2019T120790）； GDHVPS （2017）；

机构署名：

本校为其他机构

院系归属：

材料科学与工程学院

摘要：

Currently,Na-ion battery（NIB） has become one of the most potential alternatives for Li-ion batteries due to the safety and low cost.As a promising anode for Na-ion storage,expanded graphite has attracted considerable attention.However,the sodiation-desodiation process is still unclear.In our work,we obtain expanded graphite through slight modified Hummer’s method and subsequent thermal treatment,which exhibits excellent cycling stability.Even at a high current density of 1 A g-1,our expanded graphite still remains a high reversible capacity ...

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Insights on the mechanism of Na-ion storage in expanded graphite anode

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