A highly efficient Li2O2 oxidation system in Li–O2 batteries. Issue 82 (23rd August 2016)

• Record Type: Journal Article
• Authors: Hase, Yoko; Seki, Juntaro; Shiga, Tohru; Mizuno, Fuminori; Nishikoori, Hidetaka; Iba, Hideki; Takechi, Kensuke
• Is Part Of: Chemical communications. Volume 52:Issue 82(2016)
• Page Start: 12151
• Page End: 12154
• Publication Date: 2016-08-23
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c6cc04543j
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : We demonstrated a novel indirect charging system for Li–O2 batteries, chemical regeneration, which reduces both charging time and capacity fade. Abstract : A novel indirect charging system that uses a redox mediator was demonstrated for Li–O2 batteries. 4-Methoxy-2, 2, 6, 6-tetramethylpiperidinyl-1-oxyl (MeO-TEMPO) was applied as a mediator to enable the oxidation of Li2 O2, even though Li2 O2 is electrochemically isolated. This system promotes the oxidation of Li2 O2 without parasitic reactions attributed to electrochemical charging and reduces the charging time.