Lithium battery management

Introduction

Lithium battery management focuses on ensuring safety, lifespan extension, and stable performance of lithium batteries.   Through a dedicated Battery Management System (BMS), it prevents risks such as overcharging, over-discharging, overheating, and short circuits, while maximizing battery utilization efficiency.

Key Components

• BMS (Battery Management System): The core control unit, coordinating monitoring and protection functions.

• Sensors: Track voltage, current, and temperature in real time.

• Protection Circuits: Trigger power-off in abnormal conditions to avoid accidents.

• Balancing Modules: Balance the voltage between individual cells to ensure overall performance.

Core Functions

• Status Monitoring: Collects real-time data on battery voltage, current, temperature, SOC (state of charge), and SOH (state of health).

• Safety Protection: Provides safeguards against overcharge, over-discharge, overcurrent, and overheating.

• Power Balancing: Maintains uniform performance across cells through active or passive balancing.

• State Estimation: Improves accuracy of SOC and SOH calculations to optimize energy use and predict battery aging.

Application Scenarios

Lithium battery management systems are widely applied in new energy vehicles (EV/HEV), energy storage systems, consumer electronics (smartphones, laptops), and unmanned aerial vehicles.   They ensure reliable power delivery and enhance safety across diverse industries.

Role of SiC, IGBT & Power Modules

Baoquan Zhijie offers SiC MOSFETs, IGBTs, diode modules, and power modules for BMS and lithium battery applications.   These devices improve power conversion efficiency, thermal stability, and system reliability, supporting the safe and efficient operation of lithium battery systems.