A123

The Situation Nobody Talks About Here is a situation that happens more often than you would think in battery development. An EV company has a working cell from Supplier A - tested, characterised, reliable. But for their next programme, they need a different cell: larger capacity, different form factor, different thermal profile. They ask the supplier: “Can you make us a 21700 version with 4000 mAh from the same chemistry?” ...

A battery’s safe operating envelope is not a fixed number. It’s a surface - varying continuously with temperature, state of charge, state of health, and operating history. Getting it wrong in the conservative direction costs performance and range. Getting it wrong in the aggressive direction costs cell life, and at the extreme, safety. The Current Limits Generator was built to define that surface correctly - from physics, not from conservative blanket rules. ...