Solid Power SPAC Presentation Deck

2017 vs Now 2017 Material Development Charging Rate 0.1C Max for rechargeable pouch cells Power Up to 3.5ms/ cm Room temperature electrolyte conductivity Temperature 70°C Nominal operating temperature Pouch Cell Energy 250 Wh / kg Stack-level specific energy of 0.17 Ah cells Energy / Cost 100 μm Separator thickness for rechargeable pack cells Scale 170m Ah Maximum capacity for rechargeable pack cells Manufacturing Throughput ~2/week Maximum 1-Ah cell throughput Scale <1kg Electrolyte produced per month Quality Hand-built cells with no formal QC steps in place Material Development Charging Rate 2C (¹) Max at room temperature 20x increase Power Up to 10ms / cm Room temperature electrolyte conductivity +3x increase Temperature 29°C Nominal operating temperature Commercialization Roadmap TODAY Solid Power Pouch Cell Energy 320 Wh / kg As-measured specific energy of 20 Ah cells 60% increase Energy / Cost (2) 25 μm Separator thickness 75% decrease Scale (3) 20 Ah Current capacity Manufacturing Throughput >100 / week Maximum 2-Ah cell throughput 50x scale inc. Scale 100kg Electrolyte produced per month 100x increase Quality Semi-automated production with quality checks throughout 41°C decrease 133x increase Scaled QC 1. Si anode cells sustain a 2C charge rate at room temperature. 2. Si anode cells incorporate 25 micron separators; Li metal anode cells incorporate 50 microns or higher. 3. Li metal anode cells have been produced at 20 Ah scale. Si anode cells transitioning to the 20 Ah scale in Q3 2021. Solid Power DCRC 34

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