Report Highlights

The United States' Role in the Global Hybrid EV Battery Supply Chain

The United States functions as a net importer of finished hybrid cells and a growing assembler of hybrid packs. Japanese producers still anchor nickel-metal hydride and hybrid-specific lithium-ion chemistries, and Toyota's battery plant in North Carolina supplies packs for its hybrid lineup. Cells and cathode active material arrive principally from South Korea, Japan and China through Long Beach, Savannah and Houston, while China supplies the large majority of anode feedstock.

Value added is migrating toward domestic cell and pack integration, supported by production credits under Section 45X of the Inflation Reduction Act. Honda and LG Energy Solution's joint venture in Ohio, Samsung SDI's operations with Stellantis in Kokomo, Indiana, and SK On's plants with Ford in Tennessee and Kentucky create regional clusters. The core vulnerability lies upstream, where the United States processes only a small share of the lithium and graphite it consumes.

Growth Drivers for Hybrid EV Batteries in the United States

Hybrid electric vehicles accounted for roughly one in ten new light vehicles sold in the United States in 2024, and automakers are expanding hybrid nameplates faster than full battery-electric lines. Toyota, Honda and Hyundai-Kia have added hybrid trims across pickups, crossovers and sedans, which raises pack demand per vehicle platform. Hybrid packs are smaller than plug-in packs, but unit volumes are large enough to justify dedicated cell and module lines in Ohio, Michigan and North Carolina.

Domestic capacity expansion is the second driver, as 45X production credits reduce the cost of cells and modules made in the United States. Toyota's North Carolina facility and the Honda-LG joint venture in Ohio shift sourcing from Japanese and Korean imports toward local pack assembly. The third driver is import substitution in materials, with recovered nickel and rare earths from end-of-life hybrid packs providing domestic feedstock that reduces exposure to offshore refining.

Supply Chain Risks and Trade Barriers

Graphite dependency represents the most acute exposure. Preliminary anti-dumping duties above 90 percent on Chinese active anode material, combined with Section 301 tariffs on Chinese lithium-ion batteries and natural graphite, raise landed costs for every hybrid pack built with imported anodes. Rare earth magnets used in traction motors face parallel export licensing constraints from China, which halts hybrid drive system assembly independent of cell supply.

Logistics and regulatory risks compound the cost base. Lithium-ion and nickel-metal hydride cells ship as Class 9 hazardous materials under UN3480 and UN3496, restricting container stowage and adding inspection delays at Gulf and West Coast ports. Foreign entity of concern restrictions in 2025 federal tax legislation disqualify credit claims where material content traces to prohibited foreign entities, while yen and won volatility erodes margins on imported cell contracts.

Trade and Investment Opportunities in the United States

Graphite processing offers the clearest import-substitution play. Novonix is building synthetic graphite capacity in Chattanooga, Tennessee, and Syrah Resources operates an active anode material facility in Vidalia, Louisiana. Buyers who contract these volumes early secure Section 45X eligibility and sidestep the tariff stack applied to Chinese material.

Inbound investment into nickel-metal hydride recycling and rare earth recovery represents a second opening, since end-of-life hybrid packs contain recoverable nickel and rare earths. Gulf Coast ports such as Houston can consolidate pre-processed black mass arriving from Canada and Mexico under USMCA, feeding domestic refiners. Investors should target sites near the Ohio and Tennessee assembly clusters to reduce drayage costs and shorten delivery windows to pack plants.

Market at a Glance

Leading Market Participants

• Panasonic Energy
• LG Energy Solution
• Toyota Battery Manufacturing
• SK On
• Samsung SDI
• Prime Planet Energy and Solutions
• Envision AESC
• GS Yuasa
• Honda
• Ascend Elements

Regulatory and Trade Policy Environment

Tariff architecture sets the cost frame for hybrid battery imports. Section 301 duties on Chinese non-EV lithium-ion batteries are scheduled to rise to 25 percent in 2026, and graphite and critical mineral lines carry parallel increases. Section 232 tariffs on imported vehicles and parts apply to finished hybrids from Japan, Korea and Mexico, while USMCA rules of origin determine whether battery content qualifies for duty-free treatment.

Investment policy centers on production credits and the conditions attached to them. Section 45X grants per-kilowatt-hour and per-kilogram credits for domestic cell and critical mineral output, while 2025 federal legislation restricts eligibility where components are sourced from prohibited foreign entities. Department of Energy loan programs and state incentives in Michigan, Tennessee and Kentucky add capital support, conditional on job commitments and domestic content thresholds.

Hybrid EV Battery Supply Chain Outlook for the United States to 2032

By 2032 the United States will shift from importing finished hybrid cells toward domestically assembled packs with localized cathode and anode inputs. Domestic graphite capacity from Chattanooga and Vidalia, together with nickel-metal hydride recycling streams, will reduce reliance on Chinese anodes. Trade flows will tilt toward South Korean and Japanese cell exports to North American assembly plants rather than direct imports of finished packs.

Technology shifts will alter comparative advantage. Lithium iron phosphate chemistry, which avoids nickel and cobalt, is gaining share in hybrid cell designs, favoring suppliers with secured domestic phosphate and iron feedstock. Solid-state pilot lines from Japanese and Korean developers are positioned to enter hybrid packs by the early 2030s, rewarding producers with secured electrolyte and lithium supply rather than volume scale alone.