Battery electric vehicles (BEVs) are a key solution for sustainable mobility, reducing greenhouse gas (GHG) emissions and dependence on fossil fuels. However, BEV battery manufacturing has a significant carbon footprint, influenced by cathode material and production location. Current production relies on GHG-intensive electricity. This study compares GHG emissions of lithium-ion battery production in Europe versus conventional global routes using Life-Cycle Assessment. Results show European production can reduce emissions by ~40% across NMC111, NCA, and LFP chemistries, emphasizing local sourcing and renewable energy use. Recommendations aim to enhance sustainability in battery production.