Effect of Deformation on Electrochemical Performance of Aluminum-Air Battery. Issue 10 (1st June 2020)

• Record Type: Journal Article
• Authors: Alexander Listyawan, Timothy; Lee, Hansol; Lee, Yoon Ho; Baek, Jong Dae; Kim, Guntae; Park, Nokeun; Chang, Ikwhang
• Is Part Of: Journal of the Electrochemical Society. Volume 167:Issue 10(2020)
• Publication Date: 2020-06-01
• Subjects: Aluminum-air battery -- Dislocation density -- Microstructure -- Cold-rolling process -- Deformation; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/1945-7111/ab95c4
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : In this paper, the dependency on the metal deformation of the anode and electrochemical performance in an Al-air battery is investigated. We notably find a strong dependency in which the electrochemical performance is significantly governed by the dislocation density of the metal. Three specimens of different dislocation densities are prepared through a cold-rolling press: (і) 3.0 × 10 15 m −2, (ⅱ) 6.5 × 10 15 m −2, and (ⅲ) 19 × 10 15 m −2 . The peak power densities of the three Al-air batteries show 252, 219 and 174 mWcm −2, respectively. We conclude that the high mechanical properties (i.e., high dislocation density and hardness) are related to the electrochemical performances in Al-air battery.