Blog về Powertech Launches Modular BMS for Scalable Lithiumion Batteries

Imagine a world where batteries are no longer fixed-capacity black boxes, but flexible energy modules that can be combined, expanded, and customized like Lego bricks. A world where electric vehicle range anxiety disappears, and energy storage systems become precisely adjustable, efficient solutions rather than expensive burdens. This vision is becoming reality through PowerTech Systems' revolutionary BMS-Matrix® technology.

Before exploring BMS-Matrix®'s capabilities, let's examine the critical role of Battery Management Systems (BMS) in lithium-ion battery systems. The BMS acts as both guardian and brain, monitoring, controlling, and optimizing battery operation to ensure safety, efficiency, and longevity.

Traditional BMS designs are typically customized for specific battery packs, creating limitations in capacity, voltage, and application flexibility. This approach proves costly and inefficient in today's rapidly evolving market.

PowerTech Systems' BMS-Matrix® technology disrupts this paradigm with a fully modular approach, breaking down the BMS into interchangeable "energy brick" units. These components can be flexibly combined like building blocks to create battery systems of varying capacities and power outputs, revolutionizing design and deployment while reducing costs and complexity.

The core philosophy of BMS-Matrix® combines modularity, scalability, and configurability into a comprehensive hardware-software-service solution:

• Modular: Composed of independent "energy brick" units, each containing a BMS module and battery cell(s), these components can operate independently or connect via high-speed communication to form unified systems.
• Scalable: The system easily expands to hundreds of series/parallel battery module combinations, accommodating applications from small e-bikes to large-scale energy storage.
• Configurable: Each unit's software allows customization for different battery characteristics and applications, adjusting parameters like peak power, average power, maximum depth of discharge (DoD), and pre-charge settings.

BMS-Matrix®'s most striking feature is its fully software-based configuration capability. Critical parameters can be precisely controlled through software without hardware modifications, offering unprecedented flexibility:

• Adjust peak power for electric vehicle acceleration demands
• Configure maximum discharge depth to extend battery life
• Set pre-charge systems to protect capacitors from surge currents

This approach enhances integration efficiency while reducing development costs and risks through software simulation before physical deployment.

In battery systems, safety and reliability are paramount. BMS-Matrix® simplifies certification by validating at the "energy brick" unit level, allowing final systems to inherit module certifications. This modular certification method reduces time, costs, and risks while improving system reliability through early problem detection.

For e-bikes, scooters, motorcycles, and electric vehicles, the system provides efficient battery management to extend lifespan, increase range, and ensure safety.

In remote areas, the technology manages renewable energy storage from solar or wind sources, delivering reliable power with optimized charge cycles.

The system ensures stable operation for robots and automated guided vehicles (AGVs) through precise battery management.

Large-scale applications like grid peak-shaving and demand response benefit from optimized charge cycles and smart grid communication.

Marine and heavy electric vehicle applications gain robust power management with enhanced safety features.

Developed through years of independent research, BMS-Matrix® received support from the EU's Horizon 2020 program as part of the MARBEL project focused on future electric vehicle batteries.

• Cell and pack voltage measurement
• Temperature monitoring at cell and system levels
• Current measurement via shunt resistors and Hall effect sensors

• Support for hundreds of series/parallel modules
• Comprehensive cell protection (overvoltage, undervoltage, overcurrent, overtemperature)
• Active/passive thermal management
• Passive/active cell balancing
• Redistribution (active balancing) between cells
• Pre-charge system for capacitor protection
• Safety lifeline for emergency disconnection

• Precise State of Charge (SOC) calculation
• Accurate State of Health (SOH) assessment
• Depth of Discharge (DOD) monitoring
• Internal resistance measurement
• Remaining capacity evaluation

• Multiple interface options (CAN bus, CAN Open, WiFi, 4G)
• Charger management via CAN bus
• Cloud data logging through REST API
• Remote cloud monitoring capabilities

BMS-Matrix® technology represents a revolutionary advancement in large lithium-ion battery system management, enhancing performance and reliability while reducing development costs. As electric mobility and energy storage sectors grow, this innovation will play an increasingly vital role.

Future developments may include:

• Support for higher energy density batteries
• Faster charging capabilities
• Extended battery lifespan through smarter management
• Enhanced safety features for diverse operating conditions

More than just a battery management system, BMS-Matrix® serves as a key to unlocking energy's infinite potential, driving progress toward a cleaner, sustainable energy future.