Decoupling electrolytes towards stable and high-energy rechargeable aqueous zinc–manganese dioxide batteries

Cheng Zhong (), Bin Liu, Jia Ding, Xiaorui Liu, Yuwei Zhong, Yuan Li, Changbin Sun, Xiaopeng Han, Yida Deng, Naiqin Zhao and Wenbin Hu ()
Additional contact information
Cheng Zhong: Tianjin University
Bin Liu: Tianjin University
Jia Ding: Tianjin University
Xiaorui Liu: Tianjin University
Yuwei Zhong: Tianjin University
Yuan Li: Tianjin University
Changbin Sun: Tianjin University
Xiaopeng Han: Tianjin University
Yida Deng: Tianjin University
Naiqin Zhao: Tianjin University
Wenbin Hu: Tianjin University

Nature Energy, 2020, vol. 5, issue 6, 440-449

Abstract: Abstract Aqueous battery systems feature high safety, but they usually suffer from low voltage and low energy density, restricting their applications in large-scale storage. Here, we propose an electrolyte-decoupling strategy to maximize the full potential of Zn–MnO2 batteries by simultaneously enabling the optimal redox chemistry of both the Zn and MnO2 electrodes. The decoupled Zn–MnO2 battery exhibits an open-circuit voltage of 2.83 V (in contrast to the typical voltage of 1.5 V in conventional Zn–MnO2 batteries), as well as cyclability with only 2% capacity fading after deep cycling for 200 h. Benefiting from the full utilization of MnO2, the Zn–MnO2 battery is also able to maintain approximately 100% of its capacity at various discharge current densities. We also demonstrate the feasibility of integrating the Zn–MnO2 battery with a wind and photovoltaic hybrid power generating system. This electrolyte-decoupling strategy is shown to be applicable for other high-performance zinc-based aqueous batteries such as Zn–Cu and Zn–Ag batteries.

Date: 2020
References: Add references at CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.nature.com/articles/s41560-020-0584-y Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natene:v:5:y:2020:i:6:d:10.1038_s41560-020-0584-y

Ordering information: This journal article can be ordered from
https://www.nature.com/nenergy/

DOI: 10.1038/s41560-020-0584-y

Access Statistics for this article

Nature Energy is currently edited by Fouad Khan

More articles in Nature Energy from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().