Battery management specialist Sendyne has unveiled new technology it says can predict cell and pack behavior of lithium-ion batteries with better than 5 percent accuracy in real time.
CellMod, a lithium-ion battery simulation tool, has already been deployed by a US battery manufacturer. It’s designed to reduce design time and costs by employing rapid cell prototyping.
“Unlike empirical models often used today, CellMod is a true physics-based model,” says Sendyne. “It considers physical processes occurring inside the cells. Hence CellMod can predict future battery cell behavior with a high degree of accuracy.”
The CellMod software includes Sendyne’s Pseudo-2D physics-based lithium-ion battery cell model, coupled with the company’s proprietary dtSolve. The software can be used alone, or it can be integrated with other simulation packages through the Functional Mockup Interface for co-simulation.
CellMod is designed to be compact, so it can be embedded on a microcontroller in a battery management system for real-time predictive control. What’s more, several CellMod units equal to the number of cells in the pack can run simultaneously in real time. Little computing power or memory is required. As a result, “pack safety can be greatly improved and costs due to over-design can be eliminated,” according to the company.
CellMod can be adapted to any type of lithium-ion cell – the only requirement is experimental data on the cell. “CellMod can achieve high levels of accuracy without detailed knowledge of the cell design information, which is typically not made available by the cell manufacturers,” the company said.