Modeling discontinuous potential distributions using the finite volume method, and application to liquid metal batteries
Modeling discontinuous potential distributions using the finite volume method, and application to liquid metal batteries
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DOI：
10.1016/j.electacta.2019.06.085
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发表时间：
2019-06
影响因子：
6.6
通讯作者：
N. Weber;S. Landgraf;K. Mushtaq;Michael Nimtz;P. Personnettaz;T. Weier;Ji Zhao;D. Sadoway
中科院分区：
文献类型：
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作者：
N. Weber;S. Landgraf;K. Mushtaq;Michael Nimtz;P. Personnettaz;T. Weier;Ji Zhao;D. Sadoway
电池中的电势在每个电极-电解质界面处跳跃。我们提出了一个模型，用于计算三维电流和电位分布，这占了这样的内部电压跳变。在有限体积法的框架内，我们离散的拉普拉斯和梯度算子，使他们占内部跳跃边界条件。在OpenFOAM中实现了一个简单的电池模型后，我们使用分析测试用例对其进行了验证，并通过模拟Li + Bi液态金属电池的电流分布和放电曲线来展示其功能。
The electrical potential in a battery jumps at each electrode-electrolyte interface. We present a model for computing three-dimensional current and potential distributions, which accounts for such internal voltage jumps. Within the framework of the finite volume method we discretize the Laplace and gradient operators such that they account for internal jump boundary conditions. After implementing a simple battery model in OpenFOAM we validate it using an analytical test case, and show its capabilities by simulating the current distribution and discharge curve of a Li‖Bi liquid metal battery.