QuantumScape Battery Technology Advancement
The Gold
Standard Test*
Captures key requirements
simultaneously under what we
believe are uncompromised
test conditions
4-,10-,16-, 24-Layer Capacity Retention Mirrors
Single-Layer Cycling Performance
Cycle Energy Retention vs Cycle Count
100
80
00
Discharge energy [%]
40
40
60
60
20
20
Charge/Discharge Rate
Cathode Loading
1C-1C avg
3.1-3.5 mAh/cm²
Current Density
3.1-3.5 mAh/cm²
Temperature
25-30 °C
Anode
Depth of Discharge
Area+
Pressure
Anode-free Li metal
100%
Commercially relevant
<~3.4 atm
Layers
1, 4, 10, 16 or 24
+Commercially relevant dimensions may vary from 60x75 mm to 70x85 mm depending on cell format
1-layer
4-layer
10-layer
16-layer
24-layer
3rd-party; 1-layer
0
0
100
200
300
400
500
600
700
800
Cycle number
QuantumScape®
*Our gold-standard test conditions include: average charge/discharge rates of 1C or faster, temperatures of 25 °C, 100% depth
of discharge, and externally applied pressure of no more than ~3.4 atmospheres, all simultaneously.
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