Solid Power DCRC+ Financial Overview
Key Performance Metric Definitions
Appendix
Category
Description
Energy Density
Measure of how much energy a battery contains relative to its weight (Wh/kg) or volume (Wh /L)
Power Density
Measure of the max rate of charge / discharge per weight of battery
Charge Rate
Time (in minutes) it takes to recharge the battery often defined as the C Rating; a battery with a 1C rate will take 60 minutes to full charge
Cycle Life
Calendar Life
Operating Temperature
Safety
Conductivity
Manufacturability
Thermal Stability
Li Metal Stability
Moisture Stability
Number of charge and discharge cycles that a battery can sustain until its capacity falls below 80% of the original capacity
The time for which a battery can be stored, as inactive or with minimal use, such that its capacity remains above 80% of the original capacity
Ability of the battery to perform across a wide range of temperatures, particularly are ambient and low temperatures; EVs use thermal management systems
to support stable operation in required temperature ranges
Robustness of cell design and operation with respect to minimizing the risk of fire or explosion on battery failure
Measure of how electrical current moves within the solid electrolyte in Siemens per meter (S/m)
Ease of processability to work electrolyte into a battery cell in a scalable process
Stability of electrolyte material over a wide temperature range, especially at high temperatures
Degree of reactivity/interfacial resistance the solid electrolyte has with a Li Metal anode
Degree of reactivity the solid electrolyte has with moisture or water
Solid Power DCRC+
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