A novel aqueous lithium–oxygen cell based on the oxygen-peroxide redox couple. Issue 15 (21st January 2015)

• Record Type: Journal Article
• Authors: Matsui, Masaki; Wada, Ayumi; Matsuda, Yasuaki; Yamamoto, Osamu; Takeda, Yasuo; Imanishi, Nobuyuki
• Is Part Of: Chemical communications. Volume 51:Issue 15(2015)
• Page Start: 3189
• Page End: 3192
• Publication Date: 2015-01-21
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c4cc09535a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : We investigated a highly reversible oxygen-peroxide redox couple on a catalyst-free carbon-based electrode, for aqueous lithium–air battery applications. Abstract : The electrochemical process of an aqueous Li–O2 cell is investigated. Li2 O2 is detected as a discharge product of an aqueous Li–O2 cell using a catalyst-free carbon-based electrode. The electrolyte solution saturated with lithium hydroxide prevents hydrolysis of the Li2 O2 . Since the electron transfer process is based on the oxygen-peroxide redox couple, the galvanostatic charging–discharging profile shows stable cycling with an extremely low charging overpotential of <0.1 V at 1.0 mA cm −2 .