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Fast Charging at Cold ConditionsModel-Based Control Enabled by Multi-Scale Multi-Domain Plant Model AVL LIST GmbH
- Format:
- Book
- Conference/Event
- Author/Creator:
- Wurzenberger, Johann C., author.
- Conference Name:
- WCX SAE World Congress Experience (2022-04-05 : Detroit & Online, Michigan, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2022
- Summary:
- Fast charging of batteries at cold conditions faces the challenge of promoting undesired cell degradation phenomena such as lithium plating. The occurrence of lithium plating is strongly related to local surface potentials and temperatures involving the scales of the electrode surface, the unit cell and the entire module or pack. A multi-scale, multi-domain model is presented, enhancing a Newman based unit cell model with consistent models for heat generation and lithium plating and integrating this 1D+1D approach into a thermal 3D model on module level. The basic equations are presented and three different plating models from literature are discussed. The thermal model is assessed in open-loop simulations and the different plating approaches are compared in charge/discharge simulations at different operating conditions. The full multi-scale, multi-domain model is applied as a virtual sensor for model-based control of fast charging at cold conditions. The virtually given anode surface potential supports maximizing charge rates while keeping the risk of lithium plating under control
- Notes:
- Vendor supplied data
- Publisher Number:
- 2022-01-0702
- Access Restriction:
- Restricted for use by site license
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