Apparatus and method for managing battery
The battery management device addresses the challenge of preventing battery degeneration and lithium plating during rapid charging by controlling the charging process based on voltage thresholds and the lifespan characteristics of silicon-based and graphite batteries.
Patent Information
- Application Number
- PCT/KR2024/014018
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-13
- Filing Date
- 2024-09-13
- Publication Date
- 2025-03-20
AI Technical Summary
The challenge is to develop a technology that prevents battery degeneration while enabling rapid charging, considering the lifetime characteristics of charging and discharge for high-performance batteries used in electric vehicles and energy storage systems.
A battery management device and method that controls the charging of a first battery (silicon-based) and a second battery (graphite) by measuring the voltage of the first battery and comparing it to a pre-set target voltage. If the voltage is above the target, the device charges the second battery using the first battery, thereby preventing the first battery from being stored close to full charge and reducing the risk of lithium plating.
The solution effectively prevents battery degeneration by managing the charging and discharge cycles based on the lifespan characteristics of the batteries, while also reducing the likelihood of lithium plating during rapid charging, thus enhancing the overall performance and longevity of the batteries.