The Chevy Bolt uses a lithium-ion battery pack with nickel manganese cobalt oxide (NMC) cathode chemistry, supplied by LG Chem.
Across its model years, the Bolt’s pack has varied in size—from about 60 kWh in the early cars to about 65 kWh in later versions—affecting EPA range and efficiency depending on configuration.
Battery chemistry and construction
Understanding what powers the Bolt starts with the chemistry and how the pack is built. The vehicle relies on a lithium-ion battery pack that uses NMC (nickel manganese cobalt oxide) cathodes. LG Chem supplies the cells, which are arranged in pouch-cell modules that are integrated into a larger pack with active thermal management and safety systems. This combination is designed to deliver the energy density needed for a practical electric driving range while meeting GM’s safety standards.
Before we dive into how the battery varies by model year, here are the key facts that define the Bolt’s battery configuration.
• Type: Lithium-ion battery pack
• Chemistry: Nickel manganese cobalt oxide (NMC) cathodes
• Manufacturer: LG Chem (cell supplier)
• Energy capacity: roughly 60 kWh in early vehicles and about 65 kWh in later updates
• Cell format: pouch cells arranged in modular groups within the pack
Concluding the above points, the Bolt’s battery is a lithium-ion NMC pack from LG Chem, with a capacity that evolved over time to improve range and efficiency while maintaining the same overall packaging concept.
Model-year and variant variations
Bolt EV (2017–2019)
Early Bolt models shipped with a 60 kWh lithium-ion battery pack from LG Chem. This configuration delivered the EPA range typical of the era, around the mid-200s miles, with performance and charging behavior aligned to a standard 400-volt system.
Bolt EV (2020–2022) and Bolt EUV (2022–present)
Updated Bolts continued to use LG Chem NMC cells, with refinements in software, thermal management, and pack integration. The Bolt EUV, a slightly larger crossover variant, shares the same general battery chemistry and cell supplier, with packaging optimized for its SUV footprint and a small uptick in usable energy capacity on some trims.
In short, while the Bolt’s battery chemistry—lithium-ion with NMC cathodes—remained consistent, GM and LG Chem made incremental adjustments to pack size and packaging across model years to balance range, efficiency, and safety.
Summary
The Chevy Bolt relies on a lithium-ion battery pack featuring nickel manganese cobalt oxide (NMC) cathodes, produced by LG Chem. The energy capacity has varied over time—from around 60 kWh in the original models to roughly 65 kWh in later variants—while the fundamental chemistry and supplier have remained consistent. This setup underpins the Bolt’s practical electric range and charging behavior across its generations.