Development of Stable Bifunctional Air Electrodes for Zinc-Air Flow Batteries. (25th October 2017)

• Record Type: Journal Article
• Authors: Pichler, Birgit; Weinberger, Stephan; Reščec, Lucas; Hacker, Viktor
• Is Part Of: ECS transactions. Volume 80:Number 10(2017)
• Page Start: 371
• Page End: 375
• Publication Date: 2017-10-25
• Subjects: Electrochemistry -- Periodicals; Electrochemistry; Periodicals; Electronic journals; Electronic journal; 541.37
• DOI: 10.1149/08010.0371ecst
• Languages: English
• ISSNs: 1938-5862

Abstract

Abstract : Bifunctional air electrodes for the application in zinc-air flow batteries were manufactured in a scalable manufacturing process using precious metal-free oxide catalysts. During repeated charge/discharge cycling at 50 mA cm -2 and with synthetic air supply stable performances over more than 450 h and 200 cycles were achieved. The energy efficiency was 49% at start and 45% after 200 cycles. In addition, the pulse charging method with 150 mA cm -2 pulses was successfully applied on air electrodes.