VoltMatrix Secures $800M to Build Highway-Side Solid-State Battery Swap Network
Startup VoltMatrix has raised $800 million Series C to deploy the world's first highway-side solid-state battery swap stations, targeting 2,000 locations across North America by 2029.
VoltMatrix Secures $800M to Build Highway-Side Solid-State Battery Swap Network
VoltMatrix, a San Jose-based clean energy startup, announced an $800 million Series C funding round led by Breakthrough Energy Ventures, with participation from General Motors and a consortium of sovereign wealth funds. The company plans to use the proceeds to deploy the world's first highway-side solid-state battery swap network, targeting 2,000 locations across North America by 2029.
The Technology
Unlike conventional lithium-ion packs, VoltMatrix's proprietary SSB-X3 solid-state cells offer 450 Wh/kg energy density — nearly double the industry average. A complete swap takes 87 seconds, compared to the 15-20 minutes required for ultra-fast DC charging. The company's stations will stock swappable packs rated at 120 kWh, 200 kWh, and 350 kWh to serve passenger vehicles, light trucks, and commercial fleets respectively.
How It Works
Drivers pull into a designated swap lane and authorize the transaction via a mobile app or in-vehicle prompt. A robotic exchange arm — capable of handling vehicles up to 10,000 lbs GVW — removes the depleted pack from the vehicle floor and replaces it with a fully charged unit in under 90 seconds. The entire process is fully automated and requires no attendant.
Revenue Model
VoltMatrix will operate on a per-swap subscription model: $89/month for passenger vehicles (unlimited swaps), $199/month for light trucks, and custom fleet contracts for commercial operators. Depleted packs are automatically cycled through a second-life storage network before being refurbished or recycled.
Industry Implications
The announcement comes as solid-state battery technology finally approaches commercialization after decades of development. Toyota, QuantumScape, and Samsung SDI have all announced production timelines for solid-state packs, but VoltMatrix's swap infrastructure could accelerate adoption by removing the charging bottleneck entirely.
"We don't think people should wait for batteries to charge," said CEO Maya Ramirez. "Infrastructure changes behavior. If you can swap in less time than a gas stop, range anxiety becomes a non-issue."
The company expects to break ground on its first 50 stations in Q1 2028, with the network operational across major interstate corridors by late 2029.
VoltMatrix is a fictional company created for illustration purposes.
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