气候变化领域集成服务门户(CCPortal): Understanding intercalation chemistry for sustainable aqueous zinc-manganese dioxide batteries

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DOI	10.1038/s41893-022-00919-3
	Understanding intercalation chemistry for sustainable aqueous zinc-manganese dioxide batteries
	Yuan, Yifei; Sharpe, Ryan; He, Kun; Li, Chenghang; Saray, Mahmoud Tamadoni; Liu, Tongchao; Yao, Wentao; Cheng, Meng; Jin, Huile; Wang, Shun; Amine, Khalil; Shahbazian-Yassar, Reza; Islam, M. Saiful; Lu, Jun
发表日期	2022
ISSN	2398-9629
起始页码	890
结束页码	898
卷号	5 期号:10 页码:9
英文摘要	Rechargeable aqueous Zn-MnO2 technology combines one of the oldest battery chemistries with favourable sustainability characteristics, including safety, cost and environmental compatibility. However, the ambiguous charge storage mechanism presents a challenge to fulfil the great potential of this energy technology. Here we leverage on advanced electron microscopy, electrochemical analysis and theoretical calculations to look into the intercalation chemistry within the cathode material, or alpha-MnO2 more specifically. We show that Zn2+ insertion into the cathode is unlikely in the aqueous system; rather, the charge storage process is dominated by proton intercalation to form alpha-HxMnO2. We further reveal anisotropic lattice change as a result of entering protons proceeding from the surface into the bulk of alpha-MnO2, which accounts for the structural failure and capacity decay of the electrode upon cycling. Our work not only advances the fundamental understanding of rechargeable zinc batteries but also suggests the possibility to optimize proton intercalation kinetics for better-performing cell designs. A rechargeable aqueous Zn-MnO2 battery features a combination of favourable sustainability characteristics from safety to cost. The authors deploy advanced characterizations and theoretical calculations to provide fresh insight into the charge storage mechanism, which not only closes an ongoing debate but suggests ways forward.
学科领域	Green & Sustainable Science & Technology; Environmental Sciences; Environmental Studies
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS记录号	WOS:000837600000001
来源期刊	NATURE SUSTAINABILITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272710
作者单位	Wenzhou University; University of Illinois System; University of Illinois Chicago; University of Illinois Chicago Hospital; University of Bath; United States Department of Energy (DOE); Argonne National Laboratory; University of Oxford
推荐引用方式 GB/T 7714	Yuan, Yifei,Sharpe, Ryan,He, Kun,et al. Understanding intercalation chemistry for sustainable aqueous zinc-manganese dioxide batteries[J],2022,5(10):9.
APA	Yuan, Yifei.,Sharpe, Ryan.,He, Kun.,Li, Chenghang.,Saray, Mahmoud Tamadoni.,...&Lu, Jun.(2022).Understanding intercalation chemistry for sustainable aqueous zinc-manganese dioxide batteries.NATURE SUSTAINABILITY,5(10),9.
MLA	Yuan, Yifei,et al."Understanding intercalation chemistry for sustainable aqueous zinc-manganese dioxide batteries".NATURE SUSTAINABILITY 5.10(2022):9.