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Computed Time-Series Data 

Time-series values computed from harmonized time-series data using Voltaiq's proprietary analytical algorithms.

Power
● Units: Watts (W)
● Default axis type: Power
● Description/notes: Computed as current * voltage at datapoint.

 

dV/dt
● Units: Volts per second (V/s)
● Default axis type: dV/dt
● Description/notes: Computed using arithmetic differences between adjacent
datapoints.

 

dQ/dV
● Units: Amp-hours per volt (Ah/V)
● Default axis type: dQ/dV
● Description/notes:
○ Computed using arithmetic differences between adjacent datapoints.
○ Has positive sign during charge, negative sign during discharge.

 

Current Cycle Net Capacity
● Units: Amp-hours (Ah)
● Default axis type: Capacity
● Description/notes:
○ Running total of Current Cycle Discharge Capacity - Current Cycle Charge
Capacity for current cycle.
○ Resets to zero at the beginning of a cycle.

 

Current Cycle Net Energy
● Units: Watt-hours (Wh)
● Default axis type: Energy
● Description/notes:
○ Running total of Current Cycle Discharge Energy - Current Cycle Charge

 

Energy for current cycle.
○ Can be considered a running total of “net energy” over a cycle.
○ Resets to zero at the beginning of a cycle.

 

Test Net Capacity
● Units: Amp-hours (Ah)
● Default axis type: Capacity
● Description/notes:
○ Running total of Current Cycle Discharge Capacity - Current Cycle Charge
Capacity for the entire test up to this point.
○ For most regular cycling tests this value will oscillate and slowly decrease
from cycle to cycle, due to coulombic losses.

 

Test Net Energy
● Units: Watt-hours (Wh)
● Default axis type: Energy
● Description/notes:
○ Running total of Current Cycle Discharge Energy - Current Cycle Charge
Energy for the entire test up to this point.
○ For most regular cycling tests this value will oscillate and slowly decrease
from cycle to cycle, due to energy losses.

 

Test Cumulative Capacity
● Units: Amp-hours (Ah)
● Default axis type: Capacity
● Description/notes:
○ Running total of Current Cycle Discharge capacity + Current Cycle Charge
Capacity for the entire test up to this point.
○ For most regular cycling tests this value will increase over the entire test,
incrementing during both charge and discharge, and flat during rest steps. 

 

Test Cumulative Energy
● Units: Watt-hours (Wh)
● Default axis type: Energy
● Description/notes:
○ Running total of Current Cycle Discharge Energy + Current Cycle Charge
Energy for the entire test up to this point.
○ For most regular cycling tests this value will increase over the entire test,
incrementing during both charge and discharge, and flat during rest steps.