A Membraneless Direct Borohydride Fuel Cell Using LaNiO3-Catalysed Cathode

✍ Scribed by J. Ma; Y. Liu; Y. Liu; Y. Yan; P. Zhang

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 204 KB
• Volume: 8
• Category: Article
• ISSN: 1615-6846
• DOI: 10.1002/fuce.200800048

✦ Synopsis

Abstract

Direct borohydride fuel cell (DBFC) is one of the most exciting energy technologies that solve the hydrogen storage and safety issues by using aqueous solution of KBH~4~ or NaBH~4~. Here, we present a membraneless DBFC with perovskite‐type oxide LaNiO~3~/C‐catalysed cathode. A significant finding from the electrochemical experiments is that it obviously shows that the existence of $ {\rm BH}_4^- $ ions has almost no negative influence on the discharge performances of the LaNiO~3~‐catalysed cathode. Therefore, the DBFC is designed without using an ion exchange membrane. The maximal power density of 127 mW cm^–2^ is obtained at 65 °C under atmospheric pressure. A 500 h life test shows that the DBFC has good stability.