GM unveils fourth-generation EV platform and LMR batteries

General Motors announced its fourth-generation EV platform and a new lithium manganese rich (LMR) battery chemistry developed with LG Energy Solution at its GM Forward event in New York on October 21. The LMR packs offer 33% more energy density than LFP, while the platform cuts drive-unit parts by 40% and wiring by 30%.

• LMR batteries offer 33% more energy density than LFP at similar cost
• Drive units use 40% fewer parts; wiring is cut by 30%
• A central compute unit delivers 40% faster processing
• AI modeling tested over 300,000 battery designs before prototyping