Self-corrosion, electrochemical and discharge behavior of commercial purity Al anode via Mn modification in Al-air battery  

作　　者：Guo-Sheng Peng Jun Huang Yi-Cheng Gu Guang-Sheng Song 

机构地区：[1]School of Materials Science and Engineering,Anhui University of Technology,Ma’anshan 243002,China [2]Key Laboratory of Green Manufacturing and Surface Technology of Advanced Metal Materials,Ministry of Education,Anhui University of Technology,Ma'anshan 243002,China

出　　处：《Rare Metals》2021年第12期3501-3511,共11页稀有金属（英文版）

基　　金：financially supported by Anhui Provincial Natural Science Foundation (No. 1808085ME123);the Projects of International Cooperation and Exchanges in Anhui Provincial Key Project of Research and Development Plan (No.1804b06020363);the Priority Funding Scheme for Innovative Projects for Overseas Chinese Students in Anhui Province。

摘　　要：The self-corrosion, electrochemical and discharge behavior of commercial purity Al anode via Mn modification in Al-air battery was studied by the hydrogen evolution, weight loss, electrical conductivity, electrochemical and discharge tests. Results show that the synergetic effects of the dissolved Mn and Mn-modifying Al_(3)Fe intermetallic decrease the weight loss and inhibit the hydrogen evolution of commercial purity Al in Na OH solution when minor Mn is introduced. However, more Mn addition leads to the formation of Al_6Mn intermetallic,which has little effect on the weight loss, but accelerates the hydrogen evolution. Mn introduction plays a positive role in activating Al anodes, resulting in a decrease in the anodic polarization and an increase in the discharge voltage. Among all the commercial purity Al-x Mn anodes, 0.1 wt% Mn addition exhibits the best discharge efficiency for Al-air battery.

关 键 词：Commercial purity Al Mn addition CORROSION Electrochemical activity Discharge behavior 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TM911.41[金属学及工艺—金属材料]