A high-power and long-life aqueous rechargeable Zn-ion battery based on hierarchically porous sodium vanadate. Issue 64 (13th July 2020)

• Record Type: Journal Article
• Authors: Qiu, Nan; Yang, Zhaoming; Wang, Yuan; Zhu, Yingming; Liu, Wei
• Is Part Of: Chemical communications. Volume 56:Issue 64(2020)
• Page Start: 9174
• Page End: 9177
• Publication Date: 2020-07-13
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc02375b
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A high-power and long-life aqueous rechargeable Zn-ion battery with consequent capacitive- and diffusion-controlled mechanism. Abstract : Recently, there has been renewed interest in aqueous Zn-ion batteries. Here, electrochemical and structural changes of hierarchically porous sodium vanadate (NVO) in aqueous Zn-ion batteries are demonstrated. The hierarchically porous NVO cathode exhibits a high power density of 7139 W h kg −1 at 10 A g −1 and excellent long-term cyclability. Moreover, the consequent capacitive- and diffusion-controlled mechanism in Zn/NVO battery chemistry has been first reported. Such a hybrid control mechanism may certainly trigger new opportunities in the rapid development of Zn-ion batteries.