Hochleistungs-Batteriesysteme für Mild-Hybride mit kobaltfreier Natrium-Ionen-Technologie

Autoren

F. Dhaussy - Plastic Omnium, A. El Mejdoubi - Tiamat Energy company

Zusammenfassung

This paper will present the simulation work and result that were performed in the context of the development of a 48V battery pack with innovative cell electrochemistry based on Sodium-ion instead of usual Lithium-ion technology. With a complete simulation platform composed of all elements of a battery pack, we are able to design sub-component of the pack as well as predict its future performance.

First chapter gives a brief approach to the Sodium-ion cell chemistry. NVPF cells cathodes present interesting characteristics especially for power applications needed for Mild-HEV, Full-HEV and also FCEV.

The focus here is given to the battery pack and its internal components. While simulations at vehicle level are interesting, we here focus on the behavior of subcomponents inside the pack, and simulation of every cell independently in the pack.

We run WLTC type cycle in our simulation platform to assess the behavior of our pack, prior to evaluation in real driving (RDE) cycles and validate the behavior at -10°C where 48V benefit are expected for euro 7 regulation