Chinese Journal of Applied Chemistry ›› 2019, Vol. 36 ›› Issue (10): 1211-1220.DOI: 10.11944/j.issn.1000-0518.2019.10.190052

• Full Papers • Previous Articles    

Analysis of Methanol Transport and Concentration Controlling Strategy in Direct Methanol Fuel Cell

DENG Guangrongabd,LIANG Liangabd,LI Chenyangad,LIU Changpengacd*(),GE Junjieacd,XING Weiacd*()   

  1. aLaboratory of Advanced Power Sources,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
    bUniversity of Chinese Academy of Sciences,Beijing 100049,China
    cState Key Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
    dJilin Province Key Laboratory of Advanced Low Carbon Power Sources,Changchun 130022,China
  • Received:2019-02-28 Accepted:2019-05-06 Published:2019-10-01 Online:2019-09-29
  • Contact: LIU Changpeng,XING Wei
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21673221, No.U1601211), and the Jilin Province Science and Technology Development Program(No.20170203003SF)


The methanol concentration plays an important role in the performance of direct methanol fuel cells(DMFCs). This work aims to establish an effective controlling strategy of methanol concentration for DMFC power system. We combined the methanol conservation equation and the thermal conservation equation to analyze the mass transport process inside DMFC. The concentration strategy was established based on the two parameters, i.e., charge and temperature. The strategy was effective clarified by the relationship of temperature and concentration. By applying the strategy, the DMFC power system realizes stable operation over 420 min. The appropriate methanol concentration of power system range from 0.70 to 0.87 mol/L. This strategy achieves the goal of methanol concentration control and will play a vital role in the DMFC power systems.

Key words: direct methanol fuel cell, methanol transport, concentration controlling, temperature effect