Solid Power SPAC Presentation Deck

The All-Solid-State Value Proposition Step function improvements over lithium-ion projected in essential areas 353 Vehicle range¹ 482 miles (↑ 80%) Safety Not-volatile due to removal of all liquid and gels Cycle life 1,000+ cycles (369,000 miles) Power¹ 922 HP (↑ 15%) Calendar life >2x (Li-ion: 8 years) Cost Simplified and lower cost packs Reduced warranty cost Vehicle design flexibility Charge rate <20 minutes (10-90% charge) Environment No material recycling concerns $142/kWh Compelling ASSB Price Net of Incremental Value to Auto OEM² $/kWh cell price Lithium-Ion Today Market Opportunity $85/kWh ↓ 10-20% Solid Power Energy Density Premium ↓0-5% Safety Premium 5-10% Pack-Level Cost Savings $55-70/kWh Net Value Adj. Price Initial demand driven by premium vehicles Rapid mass market adoption expected as cost parity achieved c. 2030 Source: Solid Power cell performance metrics are initial commercialization design targets for lithium metal anode cell. 1. Comparison based on a 77 kWh lithium-ion pack with cylindrical cells (i.e. Tesla Model 3 Pack) with a system volume of 329 L. Solid Power mileage assumes a constant 329 L system volume delivering 138 kWh with a pack mass of 481 kg, utilizing lithium metal anode cell design. 2. Solid Power estimates. Solid Power DCRC 19

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