A hybrid aluminum/hydrogen/air cell system

Lei Wang, Wentao Wang, Guandong Yang, Dong Liu, Jin Xuan, Huizhi Wang, Michael K. H. Leung, Fude Liu

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A hybrid aluminum/hydrogen/air cell system is developed to solve the parasitic hydrogen-generating problem in an alkaline aluminum/air battery. A H-2/air fuel cell is integrated into an Al/air battery so that the hydrogen generated by the parasitic reaction is utilized rather than wasted. A systematic study is conducted to investigate how the parasitic reaction and the added H-2/air cell affect the performance of the aluminum/air battery. The aluminum/air sub-cell has an open circuit voltage of 1.45 V and the hydrogen/air sub-cell of 1.05 V. The maximum power density of the entire hybrid system increases significantly by similar to 20% after incorporating a H-2/air sub-cell. The system maximum power density ranges from 23 to 45 mW cm(-2) in 1-5 M NaOH electrolyte. The hybrid system is adaptable in concentrated alkaline electrolyte with significantly improved power output at no sacrifice of its overall efficiency. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)14801-14809
Number of pages9
JournalInternational Journal of Hydrogen Energy
Volume38
Issue number34
DOIs
Publication statusPublished - 13 Nov 2013

Keywords

  • Aluminum air battery
  • Hydrogen air fuel cell
  • Hybrid cell system
  • Passive fuel cell
  • Parasitic self-corrosion reaction
  • Membraneless fuel cell
  • ALUMINUM-AIR BATTERIES
  • METHANOL FUEL-CELL
  • ALKALINE ELECTROLYTE
  • ELECTROCHEMICAL-BEHAVIOR
  • DIFFERENT GRADES
  • ANODIC BEHAVIOR
  • ALLOY ANODES
  • CORROSION
  • PERFORMANCE
  • CATALYSTS

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