First simulation model for aging in sodium ion battery cells
Twaice in Germany has developed an aging model for sodium-ion battery cells, the first time a simulation model for battery aging is compatible with non-lithium batteries.
The sodium ion battery cell model developed by Twaice will give battery operators a valuable tool in understanding how to best deploy emerging sodium-ion batteries.
The simulation software provides a tool for developers of stationary storage systems. The technology operates on similar principles to lithium-ion batteries, where energy is stored through the intercalation of ions in the electrodes. At 90-150 Wh/kg, the energy density is currently lower than that of modern lithium-ion batteries, whereby a density of up to 200 Wh/kg is expected in the future. Overall, sodium-ion batteries offer many of the advantages of lithium-ion batteries and score with superior environmental compatibility and abundant supply of raw materials.
Compared to lithium-ion batteries, sodium-ion batteries are made of more accessible, affordable and environmentally friendly materials. Their lifetime, safety and performance at low temperatures are also better than those of lithium-ion batteries, depending on system design.
The model is based on measurements in the Twaice battery research centre and uses the company’s proprietary and standardized approach.
“As the demand for energy storage continues to surge, innovative new options like sodium-ion are attracting the attention of battery operators, and we’re keen to help them better understand how to best deploy these new batteries,” says Michael Baumann, CEO of Twaice. “While lithium-ion batteries are a proven quantity and we’ll continue innovating our simulation and analytics software to get the most out of lithium storage, we also want to be sure we’re meeting a demand for alternative batteries and stay at the forefront of technology. We look forward to working with our customers in applying our new simulation models to sodium-ion battery storage.”
The sodium ion battery cell model enables researchers and engineers to delve deeper into the intricacies of sodium-ion batteries, facilitating a more comprehensive understanding of their properties and aging behaviour. As these batteries grow more common, the simulation model will enable a deeper understanding and more effective use of sodium-ion batteries, supporting the development of lithium-ion battery alternatives.
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