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

doi:10.1039/d1ee03070a

IMR OpenIR

	Revealing the multiple cathodic and anodic involved charge storage mechanism in an FeSe2 cathode for aluminium-ion batteries by in situ magnetometry
	Wang, Huaizhi 1; Zhao, Linyi 1; Zhang, Hao 1; Liu, Yongshuai 1; Yang, Li 1; Li, Fei 1; Liu, Wenhao 1; Dong, Xiaotong 1; Li, Xiangkun 1; Li, Zhaohui 1; Qi, Xiaodong 2; Wu, Langyuan 2; Xu, Yunfei 3; Wang, Yaqun 3; Wang, Kuikui 1; Yang, Huicong 4; Li, Qiang 1; Yan, Shishen 5; Zhang, Xiaogang 2; Li, Feng ; Li, Hongsen 1
通讯作者	Li, Qiang(liqiang@qdu.edu.cn) ; Li, Hongsen(hsli@qdu.edu.cn)
	2021-11-23
发表期刊	ENERGY & ENVIRONMENTAL SCIENCE
ISSN	1754-5692
页码	9
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.
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of Shandong Province
DOI	10.1039/d1ee03070a
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS记录号	WOS:000728257500001
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：74[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/167335
专题	中国科学院金属研究所
通讯作者	Li, Qiang; Li, Hongsen
作者单位	1.Qingdao Univ, Coll Phys, Ctr Marine Observat & Commun, Qingdao 266071, Peoples R China 2.Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Jiangsu Key Lab Mat & Technol Energy Convers, Nanjing 210016, Peoples R China 3.Shandong Univ Sci & Technol, Coll Elect Engn & Automat, Qingdao 266590, Peoples R China 4.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 5.Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, 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.