摘要
分析了质子交换膜燃料电池(PEMFC)电流密度的超调现象,从机理上进行了解释。结果表明:电流密度的超调现象是水、气传输的综合作用引起的,水浓度的升高使氧气浓度下降,而氧气浓度的下降是引起电流密度出现超调的原因。
The overshoot behavior of current density of proton exchange membrane fuel ccU(PEMFC) was analyzed and its mechanism was explained. The results showed that the overshoot behavior was totally caused by the water and gas transport, the decreasing of oxygen concentration was due to the increasing of water concentration, which was the reason of the overshoot behavior of current density.
出处
《电池》
CAS
CSCD
北大核心
2008年第2期85-87,共3页
Battery Bimonthly
基金
国家自然科学基金重点项目(50632050)
关键词
质子交换膜
燃料电池
瞬态响应
超调
水传输
proton exchange membrane
fuel cell
transient response
overshoot
water transport