Contribution of titanium substitution on improving the electrochemical properties of P2-Na0.67Ni0.33Mn0.67O2 cathode material for sodium-ion storage

时间:2020-07-07作者:浏览量:65


Contribution of titanium substitution on improving the electrochemical properties of P2-Na0.67Ni0.33Mn0.67O2 cathode material for sodium-ion storage

作者:Cao, ZJ (Cao, Zhijie)[ 1 ] ; Li, LJ (Li, Lijiang)[ 1 ] ; Zhou, CJ (Zhou, Chaojin)[ 2 ] ; Ma, XB (Ma, Xiaobo)[ 1 ] ; Wang, HL (Wang, Hailong)[ 1 ]


FUNCTIONAL MATERIALS LETTERS


卷: 13  期: 3

文献号: 2051010


DOI: 10.1142/S1793604720510108


出版年: APR 2020


文献类型:Article


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摘要

P2-type Na0.67Ni0.33Mn0.67-xTixO2(0 <= x <= 0.4) have been synthesized as cathode materials for sodium-ion batteries, and the effect of Ti substitution on the structural evolution and electrochemical properties of Na0.67Ni0.33Mn0.67O2 are investigated in detail. Analysis results indicate that an appropriate substituted amount of Mn with Ti in the MO2 layers effectively stabilize the crystal lattice of these layered electrodes during the Na+ insertion/extraction process, which significantly improves their electrochemical performances between 2.5 and 4.4V. The discharge/charge patterns and in situ X-ray diffraction measurements expound the successful suppression of Na+/vacancy ordering and multiphase transition during the de-sodiation/sodiation process to resist the structure-induced degradation, which provide possible guidelines for exploring high performances sodium-ion batteries.


关键词

作者关键词:Sodium-ion batteries; cathode material; Na0.67Ni0.33Mn0.67O2; Ti-substitution


KeyWords Plus:P2-TYPE NA2/3NI1/3MN2/3O2; HIGH-CAPACITY; PERFORMANCE; BATTERIES; TRANSITION; ELECTRODE; OXIDE


作者信息

通讯作者地址: Cao, ZJ (通讯作者)


显示更多Ningxia Univ, Sch Phys & Elect Elect Engn, Adv Energy Storage Mat & Devices Lab, Yinchuan 750021, Ningxia, Peoples R China.

地址:


显示更多[ 1 ]‎ Ningxia Univ, Sch Phys & Elect Elect Engn, Adv Energy Storage Mat & Devices Lab, Yinchuan 750021, Ningxia, Peoples R China

显示更多[ 2 ]‎ South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China

电子邮件地址:caozhijie@nxu.edu.cn; merrick_whl@126.com


基金资助致谢

基金资助机构显示详情授权号

Ningxia Key Research and Development Program

2018BEE03002

Natural Science Foundation of Ningxia province

2018AAC03052

National Natural Science Foundation of China


51801107

Third Batch of Ningxia Youth Talents Supporting Program

TJGC2018090

Natural Science Foundation of Ningxia

2018AAC03050

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出版商

WORLD SCIENTIFIC PUBL CO PTE LTD, 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE


期刊信息

Impact Factor (影响因子): Journal Citation Reports

类别 / 分类

研究方向:Materials Science


Web of Science 类别:Materials Science, Multidisciplinary