2.8 V Aqueous Lead Dioxide–Zinc Rechargeable Battery Using H2SO4–K2SO4–KOH Three Electrolytes. Issue 2 (3rd February 2020)

• Record Type: Journal Article
• Authors: Gao, Tong; Sun, Yu; Gong, Liangyu; Ma, Chuanli; Wang, Jie; Su, Linghao
• Is Part Of: Journal of the Electrochemical Society. Volume 167:Issue 2(2020)
• Publication Date: 2020-02-03
• Subjects: Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/1945-7111/ab6f58
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Aqueous chargeable batteries always suffer from narrow voltage window due to water electrolysis. In this paper, a high-voltage aqueous lead dioxide–zinc battery is constructed by designing negative and positive materials in alkaline and acidic electrolytes, respectively. It not only exhibits an open circuit voltage of 2.8 V and a discharge voltage of 2.75 V, which is the highest among PbO2 -based aqueous batteries, but also provides a promising strategy to obtain high operating voltage without using expensive organic electrolytes or solid electrolyte separator.