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Slate Truck Shifts to Illinois-Made LFP Battery Technology

The electric pickup abandons NMC chemistry for a cost-effective, locally sourced LFP battery pack.

Engadget2 min

1Strategic Battery Chemistry Pivot

Slate has officially transitioned its electric pickup from nickel-manganese-cobalt (NMC) cells to a single lithium iron phosphate (LFP) pack. Originally, the company planned a dual-battery strategy with 52.7kWh and 84.3kWh options from SK On. This shift simplifies the production line while maintaining the advertised starting price of $24,950 for consumers.

2Supply Chain Localization Benefits

The new LFP packs are manufactured by Gotion in Manteno, Illinois, just 90 miles from Slate's Indiana factory. This proximity significantly outperforms the previous 710-mile logistics chain from Commerce, Georgia. By sourcing locally, the company reduces transportation costs and mitigates risks associated with long-distance supply chains for critical vehicle components.

3Impact of Tax Credit Changes

The initial design favored NMC cells to potentially qualify for federal clean-vehicle tax credits. However, since those credits expired for vehicles acquired after September 30, 2025, the pressure to meet specific mineral sourcing requirements vanished. This regulatory change allowed Slate to prioritize cost-effective LFP chemistry without losing the federal incentive advantage.

4Engineering Efficiency and Packaging

Slate moved from a modular SK On setup to a direct-stacking prismatic cell design. This structural change maximizes the available space under the truck chassis. While the new 65kWh pack occupies all available room, preventing an extended-range option, it provides a consistent 205-mile projected range for all base model buyers.

5Performance Trade-offs and Metrics

The transition to a lower-voltage LFP system resulted in a power reduction from 201 to 181 horsepower. Despite this, the truck maintains an 8-second 0-to-60-mph acceleration time. The chemistry change, combined with aerodynamic and thermal improvements, successfully increased the base range from the originally announced 150 miles to 205 miles.

6Operational Advantages of LFP

LFP chemistry is inherently cheaper than NMC because it replaces expensive nickel, manganese, and cobalt with iron and phosphate. Furthermore, LFP batteries generally withstand more frequent charging to 100% capacity. This durability is a critical feature for the Slate Truck, which relies on its full capacity to meet the 205-mile range.

7Warranty and Consumer Reliability

To build consumer confidence in the new powertrain, Slate offers a 10-year or 110,000-mile warranty on the battery and drivetrain. This commitment addresses potential concerns regarding the reliability of the new LFP configuration. The company aims to provide a reliable, low-cost utility vehicle that simplifies the purchasing decision for its customers.

8Future Outlook for Slate

By consolidating into a single battery offering, Slate streamlines its manufacturing process and reduces complexity. The company has not disclosed the status of its previous deal with SK On, focusing instead on the Gotion partnership. This pivot highlights a broader industry trend of prioritizing cost-efficiency and local sourcing over complex, multi-tier battery strategies.

Original article: Engadget — Slate Truck Shifts to Illinois-Made LFP Battery Technology