LG Energy Solution Lands Honda Prismatic Battery Deal After Tesla Win

LG Energy Solution is turning its prismatic battery business into a major revenue engine. According to South Korean industry publication TheElec, the company has won a multi-trillion-won prismatic battery supply contract with Honda — its second major prismatic deal in months, following a roughly $4.3 billion agreement with Tesla finalized in March 2026. If the reported scale holds, the Honda project would be the larger of the two.

The claim that Honda is LGES's first automotive customer for prismatic EV batteries is notable, given that the existing LGES-Honda joint venture in Ohio — L-H Battery Company, Inc. — was originally built around pouch-type cells. That facility has since pivoted toward energy storage system (ESS) production, which makes this reported prismatic automotive deal a genuinely new chapter in the relationship.

Two Deals, One Strategic Pivot

The Tesla agreement, confirmed in March 2026, is worth approximately 6 trillion Korean won (roughly $4.3 billion) and covers lithium iron phosphate (LFP) prismatic cells for Tesla's Megapack stationary energy storage systems. Those cells will be manufactured at LGES's facility in Lansing, Michigan, with production expected to begin in 2027. That deal is squarely in the ESS space — not automotive.

The Honda deal reported by TheElec is described as a prismatic battery project for electric vehicles, which would make it structurally different from the Tesla arrangement. If accurate, LGES would be supplying prismatic cells into two distinct markets — stationary storage for Tesla and automotive EVs for Honda — simultaneously scaling a format it has historically used less than its competitors in China.

Prismatic cells have gained significant ground in the EV industry over the past several years, driven largely by Chinese manufacturers like CATL and BYD who have standardized on the format. Korean battery makers, including LGES, built their dominance on pouch and cylindrical chemistries. Winning two large prismatic contracts in quick succession signals a deliberate effort by LGES to compete across all cell formats rather than cede prismatic to Chinese suppliers.

The Honda Relationship: More Complex Than It Looks

The LGES-Honda history adds useful context here. According to public filings and company announcements, the two companies formally established L-H Battery Company, Inc. in January 2023, committing an initial $3.5 billion — eventually projected to reach $4.4 billion — toward a production facility in Fayette County near Jeffersonville, Ohio. The plant was designed for approximately 40 GWh of annual pouch-cell capacity, targeting completion by end of 2024 and mass production by end of 2025.

The trajectory shifted. As of mid-2026, the Jeffersonville facility has begun mass production of lithium-ion cells — but for energy storage systems, supplied through LG Energy Solution Vertech, not for Honda EVs. Separately, Honda Development and Manufacturing of America agreed in late 2025 and early 2026 to acquire the factory building and related non-land assets from LGES for approximately $2.86 billion (around 4.22 trillion won), a transaction described as improving joint venture operational efficiency.

Against that backdrop, a new prismatic automotive battery contract — structured separately from the existing JV — would represent Honda actively diversifying its battery supply architecture rather than relying solely on the Ohio pouch-cell arrangement.

What LGES Is Building

Why This Matters Beyond LGES

For the broader EV supply chain, a Honda prismatic battery contract with LGES carries a few implications worth tracking. First, it suggests Honda is hedging its cell format strategy — pouch cells from the Ohio JV, potentially prismatic cells from a separate LGES arrangement. That kind of multi-format sourcing gives an automaker more flexibility as battery chemistry and pack design continue to evolve.

Second, it reinforces that prismatic LFP and prismatic NMC formats are no longer a Chinese-supplier-only conversation. If LGES can win both an ESS prismatic deal with Tesla and an automotive prismatic deal with Honda, it changes the competitive calculus for other Western and Korean battery makers still weighing whether to invest in prismatic manufacturing lines.

The Tesla angle is worth noting for owners following the Megapack side of Tesla's business: LGES's Lansing facility going online in 2027 adds a domestic U.S. supply source for Megapack cells, which has implications for Tesla Energy's production capacity and potentially its ability to fulfill the large utility-scale storage backlog the company has been working through.

TheElec's report has not been independently confirmed by LGES or Honda. The specific contract value and the claim that it exceeds the Tesla deal in scale are attributed to industry sources, and both companies have yet to make a public announcement. That said, TheElec has a strong track record on Korean battery supply chain reporting, and the strategic logic of the deal fits the direction both companies have been moving. Official confirmation — or denial — will be the next signal to watch.

This report was curated by the BASENOR Editorial Desk from the sources listed above. Read our editorial standards or email editorial@basenor.com to report an error.