3D Thermal and Electrochemical Model for Spirally Wound Large Format Lithium-ion Batteries (Presentation)
In many commercial cells, long tabs at both cell sides, leading to uniform potentials along the spiral direction of wound jelly rolls, are rarely seen because of their high manufacturing cost. More often, several metal strips are welded at discrete locations along both current collector foils. With this design, the difference of electrical potentials is easily built up along current collectors inthe spiral direction. Hence, the design features of the tabs, such as number, location and size, can be crucial factors for spiral-shaped battery cells. This paper presents a Li-ion battery cell model having a 3-dimensional spiral mesh involving a wound jellyroll structure. Further results and analysis will be given regarding impacts of tab location, number, and size.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1004489
- Report Number(s):
- NREL/PR-5400-49795; TRN: US201103%%582
- Resource Relation:
- Conference: Presented at the 218th ECS Meeting, 14 October 2010, Las Vegas, Nevada
- Country of Publication:
- United States
- Language:
- English
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