Where are Chevy Volt batteries made?
Chevy Volt batteries are made from lithium-ion cells produced by LG Chem in South Korea, with final battery-pack assembly handled by General Motors at the Brownstown Battery Assembly Plant in Brownstown Township, Michigan.
This article explains where the key manufacturing steps occurred and how the Volt’s battery supply chain was organized during its production years (2010–2019). It highlights who made the cells, where the packs were assembled, and how regional variants fit into the overall process.
Battery supply chain and key manufacturing steps
Here's how the main manufacturing steps are organized for the Volt's battery packs.
- Cell manufacturing: lithium-ion cells for the Volt were supplied by LG Chem and produced in LG Chem’s facilities in South Korea (with some regional variations during the program).
- Pack assembly: completed battery packs were assembled by General Motors at the Brownstown Battery Assembly Plant in Brownstown Township, Michigan, USA.
In summary, the Volt’s battery packs reflected a cross-border collaboration: LG Chem supplied the cells, GM assembled the packs in Michigan, and the same technology underpinned the Opel/Opel Ampera variants in Europe.
Historical context and regional variants
The Chevy Volt was produced from 2010 to 2019. Throughout that period, the primary battery supply chain involved LG Chem as the cell supplier and GM as the pack assembler in Michigan. The European Opel Ampera variant used the same underlying battery technology and chemistry, adapted for regional markets. Since 2019, GM has shifted toward a broader, multi-supplier approach for newer EV programs, but the Volt’s battery arrangement remained tied to LG Chem cells and GM’s Michigan assembly during its run.
Regional variants
In Europe, the Opel Ampera used the same basic battery design and LG Chem-supplied cells, with final packaging and integration managed through GM’s European operations. The core supplier-assembler model—LG Chem cells plus GM pack assembly—was the defining arrangement for the Volt family during its production years.
Summary
Chevy Volt batteries were primarily manufactured from LG Chem-supplied cells produced in South Korea, with the complete battery packs assembled by General Motors at the Brownstown Battery Assembly Plant in Michigan. This setup characterized the Volt program from 2010 through 2019, underscoring GM’s early reliance on LG Chem for essential battery cells in a cross-border manufacturing model.
Summary: The Volt’s battery packs were created through a collaboration: LG Chem provided the cells (Korea), GM assembled the packs (Michigan), with regional variants like the Opel Ampera sharing the same foundational technology. The Volt program ended in 2019, after which GM continued evolving its EV battery strategy with newer suppliers and facilities.
