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Revealing the multiple cathodic and anodic involved charge storage mechanism in an FeSe2 cathode for aluminium-ion batteries by in situ magnetometry

文献类型：期刊论文

作者Wang, Huaizhi5; Zhao, Linyi5; Zhang, Hao5; Liu, Yongshuai5; Yang, Li5; Li, Fei5; Liu, Wenhao5; Dong, Xiaotong5; Li, Xiangkun5; Li, Zhaohui5
刊名ENERGY & ENVIRONMENTAL SCIENCE
出版日期2021-11-23
页码9
ISSN号1754-5692
DOI10.1039/d1ee03070a
通讯作者Li, Qiang(liqiang@qdu.edu.cn) ; Li, Hongsen(hsli@qdu.edu.cn)
英文摘要Rechargeable aluminium-ion batteries (AIBs) are considered to be promising alternatives to current lithium-ion batteries (LIBs), since they can have the advantages of low cost with high energy-to-price ratios. Unlike in LIBs, the charge storage mechanism in AIBs involving different ionic species is far more complicated and remains largely unexplored, which impedes further screening and optimization of cathode materials that can reversibly accommodate aluminium-based (complex) charge carriers with boosted cell performance. Here, we report a comprehensive study of the battery chemistry in metal selenide based cathodes in AIBs from an integrated chemical and physical point of view. Various in situ and ex situ characterization techniques and theoretical calculations reveal that both Cl- and AlCl4- can act as charge carriers in FeSe2 cathodes during the charge process, and the Al3+ can also be embedded into the host upon the discharge process. Furthermore, using in situ magnetometry, the spin-polarized surface capacitance is observed in AIBs for the first time, which proves that Al3+ can serve as a charge compensator in the formation of space charge zones with electrons. These innovative findings provide unprecedented insight into the charge storage mechanism of AIBs.
资助项目National Natural Science Foundation of China[51804173] ; National Natural Science Foundation of China[11504192] ; National Natural Science Foundation of Shandong Province[ZR2018BB030]
WOS研究方向Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
语种英语
出版者ROYAL SOC CHEMISTRY
WOS记录号WOS:000728257500001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of Shandong Province
源URL[http://ir.imr.ac.cn/handle/321006/167334]  
专题金属研究所_中国科学院金属研究所
通讯作者Li, Qiang; Li, Hongsen
作者单位1.Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
3.Shandong Univ Sci & Technol, Coll Elect Engn & Automat, Qingdao 266590, Peoples R China
4.Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Jiangsu Key Lab Mat & Technol Energy Convers, Nanjing 210016, Peoples R China
5.Qingdao Univ, Coll Phys, Ctr Marine Observat & Commun, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Huaizhi,Zhao, Linyi,Zhang, Hao,et al. Revealing the multiple cathodic and anodic involved charge storage mechanism in an FeSe2 cathode for aluminium-ion batteries by in situ magnetometry[J]. ENERGY & ENVIRONMENTAL SCIENCE,2021:9.
APA Wang, Huaizhi.,Zhao, Linyi.,Zhang, Hao.,Liu, Yongshuai.,Yang, Li.,...&Li, Hongsen.(2021).Revealing the multiple cathodic and anodic involved charge storage mechanism in an FeSe2 cathode for aluminium-ion batteries by in situ magnetometry.ENERGY & ENVIRONMENTAL SCIENCE,9.
MLA Wang, Huaizhi,et al."Revealing the multiple cathodic and anodic involved charge storage mechanism in an FeSe2 cathode for aluminium-ion batteries by in situ magnetometry".ENERGY & ENVIRONMENTAL SCIENCE (2021):9.

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来源：金属研究所

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