The measurement and application of hydrogen diffusion coefficient in MH electrode

Dao Zhong Hu, Shi Chen*, Zi Dong Wang, Shu Hong Zhao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The average value of hydrogen diffusion coefficient in metal hydride(MH) electrode was measured by constant current discharge method. The relationship between hydrogen diffusion coefficient and state of charge (SOC) was determined by potentiostatic method. According to the MH electrode model, the fast charging performance of MH electrode can be improved by increasing hydrogen diffusion coefficient or decreasing the particle size of hydrogen storage alloy. The time when the surface hydrogen atom concentration on the MH electrode reaches maximum value under different initial states of charge and charge rates also can be calculated.

Original languageEnglish
Pages (from-to)1151-1154
Number of pages4
JournalWuli Huaxue Xuebao/ Acta Physico - Chimica Sinica
Volume22
Issue number9
Publication statusPublished - Sept 2006

Keywords

  • Fast charging
  • Hydrogen diffusion coefficient
  • Inner pressure
  • Model of MH electrode

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