QuantumScape Battery Technology Advancement

Charge C-rate [1/hr] 0.5 Summary of Published Results with Lithium-Metal Anodes SUPERCHARGER 1 QS Compromised Test Conditions " Low Charging Current Density Slower than supercharger 0 0 SAMSUNG CORNING CUBERG SAMSUNG Solid Power Solid Power r! Factorial SES Hydro Québec 500 Cycles Excess anode Anode free Room T Elevated T and/or P Room T 2<P<5 atm 1 atm (absolute) Temperature & pressure conditions during cycling 1000 Excess Lithium Low energy density ✓ Low Cycle Life < 800 cycles ° Limited Temperature Range Elevated only High Pressure Above 5 atm QuantumScapeⓇ The data presented above is made as of March 31, 2023, and is based on information that we have been able to obtain, infer or derive from publicly disclosed materials. This information will likely change over time and we do not make any representations as to the accuracy/completeness of the competitive data presented, nor any claims about the actual performance of competitors' cells. We do not undertake any obligation to update this chart to reflect events or circumstances after the date they were made, whether as a result of new information, except as may be required under applicable laws. 16

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