Accurate battery monitor and integrated protection

Precise monitoring improves power usage efficiency, which increases uptime and reduces battery size and cost. In a variety of battery management systems, our monitors and weighers provide accurate readings of battery voltage, temperature and current in real time. Our comprehensive product range enables high levels of innovation in areas such as vehicle electrification, electric mobility and home appliances.

With high-precision voltage monitoring and fault detection functions, time synchronization is realized on each cell. For battery management systems in hybrid/electric vehicles, our automotive battery monitors and weighers integrate noise filtering without the need for external components. For industrial systems, our monitors with integrated protection provide full control of voltage, current and temperature for outstanding system performance.

As a device that can realize the time-space regulation of energy, battery is one of the best ways to optimize energy application and improve the comprehensive efficiency of energy use. With the increasing demand for energy storage and the wide application of large-scale energy storage systems, batteries with high energy density and long cycle life have become the focus of current research. However, with the improvement of battery performance, its safety problems have become increasingly prominent, and battery safety accidents are often closely related to the flammable and explosive properties of the battery's organic electrolytic liquid, the thermal accumulation induced by high current charge and discharge, the structure of the battery monomer and the thermoelectric loop control technology of the module. Non-destructive characterization means can avoid external interference to the maximum extent, and carry out in-situ detection and analysis of the battery under real environment and operating conditions, so as to express and monitor the battery service behavior more clearly and accurately, obtain key information such as the reaction transient and health state of the battery, and accurately analyze the performance evolution law and reaction principle such as thermal runaway and life decay of the battery. Further guide the preparation of electrode materials, the design of battery structure and module control to improve the safety and reliability of the battery. In this review, the monitoring and characterization methods of battery non-destructive testing reported in recent years are reviewed, including sensor, magnetic resonance, X-ray, neutron scattering, ultrasonic detection, Raman scattering technology, etc., respectively describing their principles, application methods and characteristics of information acquisition, and making a comprehensive comparison of each characterization technology, especially the mutually supportive relationship of battery data. It provides methods and technical means to deeply explore the relationship between the evolution of internal microstructure and electrical performance and safety of batteries under different working conditions, improve the use efficiency of batteries, and provide support for the establishment of battery accident warning and life warning mechanism.