Lignode® – The Future of Fast Charge Electric Car Batteries
The struggle: material availability and consumer needs. As the struggle on critical raw materials continues to be a problem in vehicle electrification, we are going to need to mine a huge number of metals like cobalt and lithium to electrify the world’s vehicle fleet. This is where smaller batteries become important. – Currently, manufacturers of the next generation’s electric vehicles are competing on range. This means putting big and powerful batteries into future cars so they can travel farther between charges, says Otto Kivi, Senior Business Development Specialist in battery materials at Stora Enso. The solution: Lignode® by Stora Enso – an alternative to graphite. EV batteries are based on lithium-ion constructions made up of lithium, nickel, cobalt, copper, and graphite. The last-mentioned is used for the negative end of a lithium-ion battery known as the anode. While graphite deposits are not scarce, the supply of battery-grade graphite used in EV batteries is much tighter. In addition, graphite is a strictly layered material which can be slow to charge. However, Stora Enso has come up with a solution where graphite is replaced with hard carbon. Lignode® by Stora Enso has an amorphous, highly open structure enabling faster charging/discharging and higher cycling stability. This lignin-based hard carbon can replace natural or synthetic graphite either in parts or completely.