期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 164, 期 6, 页码 A1076-A1088出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0571706jes
关键词
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资金
- U.S. Department of Energy [DE-AC36-08GO28308]
- National Renewable Energy Laboratory
- U.S. DOE Office of Vehicle Technologies Energy Storage Program
- U.S. Government
Complex physics and long computation time hinder the adoption of computer aided engineering models in the design of large-format battery cells and systems. A modular, efficient battery simulation model-the multiscale multidomain (MSMD) model-was previously introduced to aid the scale-up of Li-ion material & electrode designs to complete cell and pack designs, capturing electrochemical interplay with 3-D electronic current pathways and thermal response. This paper enhances the computational efficiency of the MSMD model using a separation of time-scales principle to decompose model field variables. The decomposition provides a quasi-explicit linkage between the multiple length-scale domains and thus reduces time-consuming nested iteration when solving model equations across multiple domains. In addition to particle-, electrode- and cell-length scales treated in the previous work, the present formulation extends to bus bar-and multi-cell module-length scales. Example simulations are provided for several variants of GH electrode-domain models. (C) The Author(s) 2017. Published by ECS.
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