Energy storage product battery cell matching

Can a machine learning driven battery pack reconfiguration improve cell SoC equalization?

Recently, we have shown that using a machine learning driven battery pack reconfiguration technique based on a network of controllable switches, one can periodically change the battery pack topology to effectively achieve better cell SoC equalization. As a result, the driving runtime achieved with a better balanced battery pack is increased.

How do smart batteries work?

Smart batteries usually rely on some form of reconfiguration of the cells arrangement. Reconfiguration of the battery pack provides a mechanism to achieve cell SoC equalization, which becomes very challenging in the case of static battery packs.

How many topologies can a battery pack have?

There are thousands of topologies that can be formed for a battery pack with 16 cells; however, most of them are not realistic for practical use. For example, when all cells are connected in series or all cell are connected in parallel can have limitations in terms of required levels of current and voltage levels.

What is state of charge cell balancing?

State of charge (SoC) cell balancing is one of the most important roles of battery management systems (BMS). The performance and lifespan of a battery pack can be significantly degraded and reduced by the presence of imbalance in cells SoC.