Top 9 EV Battery Pack Manufacturers in the United States

As the electric vehicle revolution accelerates across North America, battery pack manufacturers play an increasingly critical role in powering this transformation. The United States has emerged as a strategic hub for EV battery production, driven by federal incentives, supply chain localization efforts, and surging demand for electric vehicles.

This comprehensive guide explores the ten most influential EV battery pack manufacturers operating in the U.S. market, highlighting their capabilities, innovations, and contributions to the electric mobility ecosystem.

1. LEAPENERGY

LEAPENERGY stands as a pioneering force in the lithium battery systems industry, originally established as LEAPMOTOR’s battery division before evolving into an independent leader by 2021. The company has distinguished itself through comprehensive vertical integration capabilities that span the entire production chain—from cell integration and BMS algorithm development to final delivery. With over a decade of specialized experience, LEAPENERGY delivers high-safety, long-life, and intelligent battery systems that serve global customers across passenger vehicles, commercial fleets, and energy storage applications.

The company holds dual UL 2580 and ISO 26262 certifications, operates 18 automated production lines with 100% AI inspection, and is scaling annual capacity from 420,000 to 950,000 units by 2025, positioning them as a trusted partner for B2B clients worldwide.

2. Tesla Energy

Tesla continues to dominate as the most influential vertically-integrated EV battery manufacturer in North America, producing both battery cells and complete pack systems for its vehicle lineup. The company is also establishing its own lithium refinery in Corpus Christi, Texas, targeting 50 GWh capacity to reduce dependence on foreign battery materials. Tesla’s aggressive expansion includes LFP battery production facilities nearing completion at Gigafactory Nevada, specifically designed for stationary energy storage products like Powerwall and Megapack. With combined North American battery production capacity exceeding 100 GWh annually and ambitious plans to reach 1,000 GWh globally, Tesla’s vertical integration strategy positions them as a transformative force reshaping the entire EV battery supply chain in the United States.

3. Panasonic Energy of North America

Panasonic Energy has established itself as the cornerstone battery supplier for Tesla and a major independent manufacturer in North America with nearly 100 years of battery innovation heritage. The company operates the world-renowned Gigafactory Nevada facility producing over 5 million battery cells daily with a workforce exceeding 4,000 employees, having delivered more than 10 billion cells to date. The company is advancing next-generation battery technology with plans to introduce products using advanced materials that increase cell capacity by 5%, while maintaining leadership in high-performance, high-quality battery cells specifically designed to meet North American customers’ demanding requirements for range, capacity, and safety in electric vehicles.

4. LG Energy Solution (LGES)

LG Energy Solution has rapidly emerged as one of the world’s premier battery manufacturers with extensive North American operations spanning multiple facilities and strategic partnerships. The company’s comprehensive portfolio includes advanced BMS technology, cylindrical 4680 cells, and prismatic formats, with total North American capacity approaching 100+ GWh as facilities reach full production, solidifying LGES’s position as a cornerstone of America’s EV battery manufacturing infrastructure.

5. General Motors (Ultium Platform)

General Motors has positioned itself as a vertically-integrated battery powerhouse through its comprehensive Ultium battery platform strategy and strategic joint ventures. The Ultium Cells joint venture with LG Energy Solution operates two major facilities—a plant in Warren, Ohio, and another in Spring Hill, Tennessee—producing large-format pouch cells featuring proprietary nickel-cobalt-manganese-aluminum (NCMA) chemistry with 127 Wh/lb gravimetric energy density. This multi-chemistry, multi-form-factor approach gives GM unprecedented flexibility with approximately 160 GWh of total U.S. battery capacity when all facilities reach full operation, establishing the company as America’s most diversified EV battery manufacturer.

6. Ford Motor Company

Ford Motor Company has made a monumental commitment to domestic EV battery production through its BlueOval SK joint venture with South Korean battery manufacturer SK On, representing one of the largest manufacturing investments in American automotive history. This comprehensive battery infrastructure positions Ford to compete aggressively across all EV segments from affordable transportation to premium electric trucks, with production creating over 7,500 manufacturing jobs and establishing a vertically-integrated North American supply chain.

7. SK On (SK Battery America)

SK On has rapidly established itself as one of the fastest-growing EV battery producers globally with substantial U.S. manufacturing footprint centered in Georgia. The company’s flagship SK Battery America facility in Commerce operates two state-of-the-art plants across 283 acres along I-85, representing a $2.6 billion investment that employs over 3,000 workers producing 22 GWh annually—enough to power approximately 300,000 electric vehicles. The company is investing more than $50 billion in its U.S. operations, contributing significantly to President Biden’s goal of domestic EV production leadership. SK On’s aggressive expansion strategy and commitment to advanced battery technology position it as a critical supplier for North America’s electric vehicle transformation.

8. Samsung SDI America

Samsung SDI has strategically entered the North American EV battery market through high-value joint ventures with leading automakers, leveraging decades of battery manufacturing expertise from its Korean operations. With extensive global patents on battery design, manufacturing technologies, and packaging solutions, Samsung SDI brings world-class prismatic battery expertise that complements and diversifies America’s EV battery supply ecosystem.

9. A123 Systems (Wanxiang A123)

A123 Systems pioneered lithium iron phosphate battery technology in the United States and remains a significant player in specialized battery applications despite shifting primarily to Chinese ownership. Founded by MIT researchers, the company developed revolutionary Nanophosphate® technology based on nano-scale doped lithium iron phosphate materials offering exceptional power density, safety, and cycle life. While the company pivoted focus toward automotive low-voltage systems and Asian production following bankruptcy and acquisition, A123’s U.S. operations continue supporting specialized applications where its proprietary Nanophosphate chemistry delivers unmatched safety and power performance.

No.	Company Name	Location	Core Products	Official Website
1	LEAPENERGY	Headquarters in China; Global distribution via HIITIO	EV Battery Packs, PHEV Systems, Low-Voltage Batteries, BESS Solutions	https://leap.hiitio.com/
2	Tesla Energy	Fremont, CA; Sparks, NV; Austin, TX	4680 & 2170 Cylindrical Cells, LFP Cells, Battery Packs	https://www.tesla.com/
3	Panasonic Energy of North America	Sparks, NV; De Soto, KS	2170 Cylindrical Lithium-ion Batteries, Advanced Materials	https://na.panasonic.com/panasonic-energy
4	LG Energy Solution (LGES)	Holland, MI; Lansing, MI; Queen Creek, AZ	Pouch & Cylindrical Cells, LFP/NCM/NCA Battery Packs	https://www.lgensol.com/
5	General Motors (Ultium Platform)	Warren, OH; Spring Hill, TN; New Carlisle, IN	Ultium Pouch Cells (NCMA), LFP & Prismatic Cells	https://www.gm.com/
6	Ford Motor Company	Glendale, KY; Stanton, TN; Michigan	Lithium-ion Battery Cells and Packs (BlueOval SK JV)	https://corporate.ford.com/
7	SK On (SK Battery America)	Commerce, GA; TN & KY (JV with Ford); Bartow County, GA	High-Nickel NCM Battery Cells and Packs	https://www.sk-on.com/
8	Samsung SDI America	New Carlisle, IN (JV with GM)	Prismatic & Cylindrical Battery Cells (NCA Chemistry)	https://www.samsungsdi.com/
9	A123 Systems (Wanxiang A123)	Livonia, MI; Global Manufacturing in Asia & Europe	Nanophosphate® LFP Batteries, 12V/48V Systems, HEV/PHEV Packs	https://www.a123systems.com/

Choose LEAPENERGY for Your Next EV Battery Pack Solution

As the EV battery landscape continues evolving rapidly, selecting a reliable, innovative partner is crucial for your electric mobility success. LEAPENERGY stands apart as a next-generation battery systems provider combining over a decade of specialized expertise with cutting-edge technology and comprehensive vertical integration.

Our dual UL 2580 and ISO 26262 certifications guarantee the highest safety and functional standards, while our 18 AI-powered automated production lines ensure zero-defect manufacturing quality. With proven partnerships including the prestigious Stellantis-Leapmotor alliance, we deliver battery packs that power thousands of vehicles globally every day. Our Gen3 CTC 2.0 platform offers unparalleled value—20% lower costs, 18% fewer components, and 10% weight reduction—all while providing 4C fast charging capability and energy capacities up to 100kWh for 350-500km range.

Whether you need passenger EV solutions, or energy storage applications, LEAPENERGY provides customized, reliable, and high-performance battery packs tailored to your specific requirements. Visit https://leap.hiitio.com/ today to discover how our industry-leading technology, responsive technical support, and commitment to excellence can power your electric future. Partner with LEAPENERGY—where innovation meets reliability in every battery pack we deliver.