Activating C-Coordinated Iron of Iron Hexacyanoferrate for Zn Hybrid-Ion Batteries with 10 000-Cycle Lifespan and Superior Rate Capability

doi:10.1002/adma.201901521

	Activating C-Coordinated Iron of Iron Hexacyanoferrate for Zn Hybrid-Ion Batteries with 10 000-Cycle Lifespan and Superior Rate Capability
	Yang, Qi 2; Mo, Funian 2; Liu, Zhuoxin 2; Ma, Longtao 2; Li, Xinliang 2; Fang, Daliang 1; Chen, Shimou 1; Zhang, Suojiang 1; Zhi, Chunyi 2,3
刊名	ADVANCED MATERIALS
	2019-08-01
卷号	31 期号:32 页码:9
关键词	activation C-coordinated Fe Prussian blue analogue ultralong lifespan zinc hybrid-ion batteries
ISSN号	0935-9648
DOI	10.1002/adma.201901521
英文摘要	Prussian blue analogue (PBA)-type metal hexacyanoferrates are considered as significant cathodes for zinc batteries (ZBs). However, these PBA-type cathodes, such as cyanogroup iron hexacyanoferrate (FeHCF), suffer from ephemeral lifespan (<= 1000 cycles), and inferior rate capability (1 A g(-1)). This is because the redox active sites of multivalent iron (Fe(III/II)) can only be very limited activated and thus utilized. This is attributed to the spatial resistance caused by the compact cooperation interaction between Fe and the surrounded cyanogroup, and the inferior conductivity. Here, it is found that high-voltage scanning can effectively activate the C-coordinated Fe in FeHCF cathode in ZBs. Thanks to this activation, the Zn-FeHCF hybrid-ion battery achieves a record-breaking cycling performance of 5000 (82% capacity retention) and 10 000 cycles (73% capacity retention), respectively, together with a superior rate capability of maintaining 53.2% capacity at superhigh current density of 8 A g(-1) (approximate to 97 C). The reversible distortion and recovery of the crystalline structure caused by the (de)insertion of zinc and lithium ions is revealed. It is believed that this work represents a substantial advance on PBA electrode materials and may essentially promote application of PBA materials.
WOS关键词	COPPER HEXACYANOFERRATE ; TRANSFORMATION ; NATI2(PO4)(3) ; NANOSHEETS ; CATHODE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000484239200008
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/30739]
专题	中国科学院过程工程研究所
通讯作者	Chen, Shimou; Zhang, Suojiang; Zhi, Chunyi
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.City Univ Hong Kong, Dept Mat Sci & Engn, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China 3.City Univ Hong Kong, Shenzhen Res Inst, Shenzhen 518057, Peoples R China
推荐引用方式 GB/T 7714	Yang, Qi,Mo, Funian,Liu, Zhuoxin,et al. Activating C-Coordinated Iron of Iron Hexacyanoferrate for Zn Hybrid-Ion Batteries with 10 000-Cycle Lifespan and Superior Rate Capability[J]. ADVANCED MATERIALS,2019,31(32):9.
APA	Yang, Qi.,Mo, Funian.,Liu, Zhuoxin.,Ma, Longtao.,Li, Xinliang.,...&Zhi, Chunyi.(2019).Activating C-Coordinated Iron of Iron Hexacyanoferrate for Zn Hybrid-Ion Batteries with 10 000-Cycle Lifespan and Superior Rate Capability.ADVANCED MATERIALS,31(32),9.
MLA	Yang, Qi,et al."Activating C-Coordinated Iron of Iron Hexacyanoferrate for Zn Hybrid-Ion Batteries with 10 000-Cycle Lifespan and Superior Rate Capability".ADVANCED MATERIALS 31.32(2019):9.