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An AlCl3 coordinating interlayer spacing in microcrystalline graphite facilitates ultra-stable and high-performance sodium storage
Li, Zheng1; Tian, Zhongliang1; Zhang, Chengzhi2,3; Wang, Fei3; Ye, Chong4; Han, Fei4; Tan, Jun2; Liu, Jinshui4
Corresponding AuthorTian, Zhongliang(tianzhongliang@csu.edu.cn) ; Zhang, Chengzhi(zhangchz@jihualab.com) ; Tan, Jun(tanjun@jihualab.com)
2021-05-07
Source PublicationNANOSCALE
ISSN2040-3364
Pages10
AbstractMetal chloride-intercalated graphite intercalation compounds (MC-GICs) show a perfect sandwich structure with high electronic conductivity and chemical stability, but there are few applications for MC-GICs in anode materials of sodium ion batteries (SIBs). Herein, we selected a splendid host microcrystalline graphite (MG) to synthesize an AlCl3 intercalated MG intercalation compound (AlCl3-MGIC) anode material and demonstrated that it is suitable for SIBs via electrolyte optimization. The AlCl3-MGIC electrode is primarily compared in four electrolytes. Sodium storage is proposed for co-intercalation and conversion reactions by simultaneously selecting a compatible NaPF6/diethylene glycol dimethyl ether (DEGDME) electrolyte. As a result, the AlCl3-MGIC anode delivers a specific capacity of 202 mA h g(-1) at a current density of 0.2 A g(-1) after 100 cycles and still exhibits a satisfactory capacity of 198 mA h g(-1) after 900 cycles. Density functional theory calculations further illustrate that DEGDME solvent molecules offer moderate adsorption energy to sodium ions that guarantees structure stabilization of GICs during repeated cycling. This work provides a theoretical basis for designing sodium ion storage with a graphite layered structure and unveiling the prospects of MC-GIC materials as high-performance anodes.
Funding OrganizationNational Natural Science Foundation of China ; Key R&D Plan of Jihua Laboratory
DOI10.1039/d1nr01660a
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51974380] ; Key R&D Plan of Jihua Laboratory[X200191TL200]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000657057100001
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160307
Collection中国科学院金属研究所
Corresponding AuthorTian, Zhongliang; Zhang, Chengzhi; Tan, Jun
Affiliation1.Cent South Univ, Sch Met & Environm, Changsha 410082, Peoples R China
2.Ji Hua Lab, Foshan 528000, Guangdong, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
4.Hunan Univ, Coll Mat Sci & Engn, Hunan Prov Key Lab Adv Carbon Mat & Appl Technol, Changsha 410082, Hunan, Peoples R China
Recommended Citation
GB/T 7714
Li, Zheng,Tian, Zhongliang,Zhang, Chengzhi,et al. An AlCl3 coordinating interlayer spacing in microcrystalline graphite facilitates ultra-stable and high-performance sodium storage[J]. NANOSCALE,2021:10.
APA Li, Zheng.,Tian, Zhongliang.,Zhang, Chengzhi.,Wang, Fei.,Ye, Chong.,...&Liu, Jinshui.(2021).An AlCl3 coordinating interlayer spacing in microcrystalline graphite facilitates ultra-stable and high-performance sodium storage.NANOSCALE,10.
MLA Li, Zheng,et al."An AlCl3 coordinating interlayer spacing in microcrystalline graphite facilitates ultra-stable and high-performance sodium storage".NANOSCALE (2021):10.
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