Mersen Solutions for Battery Energy Storage System (BESS)

Mersen is dedicated to pushing the boundaries of innovation by introducing groundbreaking and disruptive technologies that enhance the safety and reliability of BESS applications. 

Along with advanced solutions for overcurrent and voltage surge protection, such as fuses and SPDs, Mersen offers a comprehensive range of customized laminated bus bars and DC link capacitors for optimized connections and power conversion. We also provide tailored cooling solutions designed to maximize the thermal management of the complete system at PCS and battery level.

Mersen is recognized for its comprehensive suite of connection and cooling solutions, engineered to meet the rigorous demands of modern energy storage and management systems.

Solutions for Power conversion

Laminated busbars

Mersen’s low inductance laminated busbars connecting power modules and capacitors not only improve overall system reliability but greatly optimize its electrical performance.

Cooling Solutions

Mersen’s cooling solutions are vital for maintaining the optimal temperature of always more demanding power conversion designs of the BESS inverters.

DC link Capacitors

The Mersen film capacitors are recognized for their very low inductance, robust design and long lifetime. 
Mersen offers a wide range of DC-link capacitors to meet the constraints of today’s need for compacity, high current, temperature, and connection options. 

Solutions for Batteries

Infinicell busbars for smart battery cell connection

The lightweight single layer Infini∞cell bus bar solution is a combination of laminated insulation and thin conductive materials. Thanks to the thin conductive layer, battery cells can be easily welded to the bus bar connections using laser welding. The Infini∞cell bus bar design has two conductive layers: one for conducting power to the cells and the other layer used to monitor the status of battery cells. 

Battery Thermal management

Li-ion batteries are increasingly used in EV and Electrical Storage applications. However, its chemistry is extremely sensitive to thermal management conditions. Proper battery cooling technology can dramatically reduce the negative influence of temperature on battery pack, effectively improve power battery efficiency, improve the safety in use, reduce the aging rate, and extend its service life.
Mersen has developed a complete range of battery cooling solutions to address every application, from low to very high C-rate.