BATTERY PACK WITH IMPROVED FAST CHARGING FUNCTION
Patent Information
- Application Number
- DE602023017877
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-05-27
- Filing Date
- 2023-05-25
- Publication Date
- 2026-05-27
- Estimated Expiration
- 2043-05-25
AI Technical Summary
Existing graphite-based batteries in electric vehicles face issues with lithium plating when subjected to high currents for fast charging, leading to battery degradation, internal shorts, and safety risks such as ignition or explosion.
A battery pack design comprising a first graphite-based battery and a second silicon-based battery, controlled by a Battery Management System (BMS) that selectively connects or disconnects each battery to a charger or load based on charging type and voltage conditions, using relays to manage electrical connections and prevent lithium plating.
The solution enables fast charging while minimizing battery degradation by utilizing the silicon-based battery's resistance to lithium plating and ensuring safe operation by managing connections based on charging type and voltage, thereby extending the lifespan of the graphite-based battery.