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全钒液流电池非等温模型
  • 期刊名称：工程热物学报
  • 时间：2014
  • 页码：1767-1771
  • 分类：TM912[电气工程—电力电子与电力传动]
  • 作者机构：西安交通大学动力工程多相流国家重点实验室, 香港科技大学机械工程学系
  • 相关基金：国家自然科学基金(No.51121092);动力工程多相流国家重点实验室开放课题
  • 相关项目：能源高效节约和可再生转化利用的多相流理论基础
作者： 张保文|雷媛|白博峰*|赵天寿*|
关键词： 全钒液流电池, 钒离子透过膜, 非等温, 动态模型
中文摘要：

本文基于多孔电极、电解液及集流体热物理性质的显著差异,考虑了钒离子透过膜对电池性能的影响,建立了全钒液流电池动态工作过程的非等温模型。与文献中的实验测量值相比,钒电池电压随时间变化的最大计算误差为2.91%,验证了模型的正确性。应用该模型,重点研究了正负电极与膜构成的区域,以及集流体区域的传热传质规律。结果表明,多次充放电循环后负极电解液钒离子总量增加而正极钒离子总量减少,电池容量降低。电池的电流密度对产热有较大影响,较大的电流密度下与外界达到热平衡时温度较高。此模型对发展大功率电池堆储能系统的有重要参考意义。

同期刊论文项目
能源高效节约和可再生转化利用的多相流理论基础
期刊论文 213 会议论文 205 专利 29 著作 7
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