A mixed-pH dual-electrolyte microfluidic aluminum-air cell with high performance

Binbin Chen, Dennis Y C Leung, Jin Xuan, Huizhi Wang

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Energy storage capacity has been a major limiting factor in pursuit of increasing functionality and mobility for portable devices. To increase capacity limits, novel battery designs with multi-electron redox couples and increased voltages have been listed as a priority research direction by the US Department of Energy. This study leverages the benefits of microfluidics technology to develop a novel mixed-pH media aluminum-air cell which incorporates the advantages of the trivalence of aluminum and mixed-pH thermodynamics. Experimentally, the new cell exhibited an open circuit potential of 2.2V and a maximum power density of 176mWcm-2, which are respectively 37.5% and 104.6% higher than conventional single alkaline aluminum-air cell under similar conditions. With further optimization of channel thickness, a power density of 216mWcm-2 was achieved in the present study.

Original languageEnglish
JournalApplied Energy
DOIs
Publication statusE-pub ahead of print - 23 Oct 2015

Keywords

  • Aluminum-air cell
  • Co-laminar flow
  • Dual-electrolyte
  • Microfluidic

ASJC Scopus subject areas

  • Energy(all)
  • Civil and Structural Engineering

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