Commeo’s eponymous energy storage blocks build into systems with up to 1MWh capacity, intended to power mobile robots or protect the power supply of industrial plants and factories by buffering or providing emergency power. Each cube has a length of something over 20cm and contains multiple layers of lithium-ion cells with its own battery management ...

This story continues at Battery box system is modular, and uses Harting connectors

Or just read more coverage at Electronics Weekly