期刊
COMPUTERS & STRUCTURES
卷 87, 期 23-24, 页码 1567-1579出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compstruc.2009.08.005
关键词
Multi-scale modeling; Finite element method; Homogenization; Porous electrode theory
资金
- Air Force Office of Scientific Research MURI [F9550-06-1-0326]
- National Science Foundation [CMMI 0729520]
- National Science foundation under the Graduate Research Fellowship Program
This paper presents a multi-scale finite element approach for lithium batteries to study electrochemical-mechanical interaction phenomena at macro- and micro-scales. The battery model consists of a lithium foil anode, a separator, and a porous cathode that includes solid active materials and a liquid electrolyte. We develop a multi-scale approach to analyze the surface kinetics and electrochemical-mechanical phenomena within a single spherical particle of the active material. Homogenization techniques relate parameters in the micro-scale particle model to those in the macro-scale model describing the lithium ion transport, electric potentials and mechanical response based on porous electrode theory. (c) 2009 Elsevier Ltd. All rights reserved.
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