Brill Power

Brill Power, established in 2016 as a spin-out from the University of Oxford's Engineering Department, specializes in developing intelligent battery management systems (BMS) for lithium-ion batteries. The company's core technology optimizes the performance, safety, and longevity of battery packs by utilizing advanced control algorithms and cell-level power electronics. Brill Power's BMS ensures that cells are discharged proportionally to their capacity, preventing weaker cells from being overstressed and reducing the formation of hot spots within the battery pack. This approach can increase battery lifetime by up to 60% and improve energy yield by 15%.

The company's flagship product, the BrillMS B62 Premium BMS, was launched in 2021 for the stationary storage market. This system employs specialized hardware and software to implement cell-level current control, which allows for the full utilization of individual lithium-ion cells within a battery pack. By modulating electric current based on the health status and power capacity of each parallel-connected cell block, Brill Power's technology ensures that stronger cell blocks receive higher currents while weaker ones receive lower currents. This method has demonstrated the ability to enhance battery storage capacity by up to 129% and significantly improve energy storage reliability.

Brill Power's technology addresses a critical issue in the battery industry, where batteries are traditionally limited by their weakest cell, leading to premature disposal of battery packs with a majority of cells still functional. The company's approach not only extends battery life but also contributes to reducing waste in the industry. In June 2021, DNV, an independent energy expert and assurance provider, verified Brill Power's BMS technology, confirming its advantages in areas such as higher utilized pack capacity, potentially resulting in lower lifetime costs.

The company has been expanding its focus beyond stationary energy storage to include applications in electric vehicles, second-life batteries, and new battery chemistries. Brill Power's innovative approach to battery management positions it as a significant player in the ongoing transition to more sustainable and efficient energy storage solutions.