New coating test improves conductivity of lithium-ion batteries in under 5 minutes

Researchers in Japan upgraded rheo-impedance spectroscopy to test lithium iron phosphate battery slurries under simulated coating conditions.

They found that an intermediate shear rate created the best conductive network, reducing resistance and improving performance.

The method can help manufacturers identify optimal coating settings earlier, improving quality and reducing material waste.

The work, led by Tokyo University of Science and published in Journal of Power Sources, could speed up battery development.