气候变化领域集成服务门户(CCPortal): Chloride electrolyte enabled practical zinc metal battery with a near-unity Coulombic efficiency

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DOI	10.1038/s41893-023-01092-x
	Chloride electrolyte enabled practical zinc metal battery with a near-unity Coulombic efficiency
	Jiang, Heng; Tang, Longteng; Fu, Yanke; Wang, Shitong; Sandstrom, Sean K.; Scida, Alexis M.; Li, Guoxing; Hoang, David; Hong, Jessica J.; Chiu, Nan-Chieh; Stylianou, Kyriakos C.; Stickle, William F.; Wang, Donghai; Li, Ju; Greaney, P. Alex; Fang, Chong; Ji, Xiulei
发表日期	2022
ISSN	2398-9629
页码	13
英文摘要	Rechargeable aqueous zinc batteries are finding their niche in stationary storage applications where safety, cost, scalability and carbon footprint matter most. However, harnessing this reversible two-electron redox chemistry is plagued by major technical issues, notably hydrogen evolution reaction (HER) at the zinc surface, whose impacts are often not revealed under typical measurement conditions. Here we report a concentrated electrolyte design that eliminates this parasitic reaction and enables a Coulombic efficiency (CE) of 99.95% for Zn plating/stripping measured at a low current density of 0.2 mA cm(-2). With extra chloride salts and dimethyl carbonate in concentrated ZnCl2 electrolyte, the hybrid electrolyte with a unique chemical environment features low Hammett acidity and facilitates the in situ formation of a dual-layered solid electrolyte interphase, protecting zinc anodes from HER and dendrite growth. Benefiting from the near-unity CE, the pouch cell with a VOPO4 center dot 2H(2)O cathode sustains 500 deep cycles without swelling or leaking and delivers an energy density of 100 Wh kg(-1) under practical conditions. Our work represents a critical step forward in accelerating the market adoption of zinc batteries as an energy storage system with higher sustainability. Rechargeable aqueous zinc batteries are heralded as a sustainable energy technology but still face technical challenges. The hybrid electrolyte here eliminates hydrogen evolution reaction, the most thorny issue, and allows for impressive battery performance even under harsh conditions.
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:000955739600002
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/272696
作者单位	Oregon State University; University of California System; University of California Riverside; Massachusetts Institute of Technology (MIT); Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Hewlett-Packard
推荐引用方式 GB/T 7714	Jiang, Heng,Tang, Longteng,Fu, Yanke,et al. Chloride electrolyte enabled practical zinc metal battery with a near-unity Coulombic efficiency[J],2022:13.
APA	Jiang, Heng.,Tang, Longteng.,Fu, Yanke.,Wang, Shitong.,Sandstrom, Sean K..,...&Ji, Xiulei.(2022).Chloride electrolyte enabled practical zinc metal battery with a near-unity Coulombic efficiency.NATURE SUSTAINABILITY,13.
MLA	Jiang, Heng,et al."Chloride electrolyte enabled practical zinc metal battery with a near-unity Coulombic efficiency".NATURE SUSTAINABILITY (2022):13.