lemonergy· battery engineering courses

Lemonergy · Protocol step

Discharge

Apply a discharge segment in a Battery Test Protocol.

Implementation ID
discharge
Reviewed
2026-10-27

Behavior

CC mode commands positive a amperes and CP mode positive w watts; direction is supplied by the step kind. Duration is an exact multiple of dtS. An optional until condition stops at an observed sample.

Interface

Discharge interfaceInputs or arguments on the left, observed outputs on the right. Conserving terminals appear below the component. The tables give units and behavior.DischargeProtocol step
Original Lemonergy interface view. Lines identify ports; they are not a completed simulation circuit.

This reference describes a protocol step; its configuration fields are listed below. It has no connected Studio ports.

Parameters

Defaults are initial model values. Select values for your own model and operating conditions.

Configuration fields
ParameterUnitDefaultMeaning and limits
mode
mode		cc or cpSupplied by the userDischarge control mode.
a
a		ASupplied by the userPositive CC current magnitude.
w
w		WSupplied by the userPositive CP power magnitude.
s
s		sSupplied by the userPositive programmed duration.

Equations and rules

This step is defined by its sequence and stopping conditions, described above.

Worked example

Repeat charge/discharge

Twenty 50%-depth discharges give ten discharge-equivalent full cycles at fixed nominal capacity.

Open Design → Protocol bench →

Use in a workflow

Stop at a declared limit

A discharge can end at temperature or voltage thresholds.

  1. Discharge with ending condition: Stops at threshold
    • mode: cc
    • until: tC or vCell
    • Maximum duration
Open Design → Protocol bench

Repeat charge/discharge

Cycle aging block repeats charge, discharge and rest.

  1. Discharge: Removes charge
    • mode: cc
    • a / s
Open Design → Protocol bench

Connected concepts

Limits and interpretation

  • Scheduling cycles does not supply calibrated degradation or physical lifetime evidence.
  • This simulated screen is not abuse testing or proof that the battery or protection system is safe.
  • Protocol dtS is 1e-6 to 60 s. CC and CP segments cannot share one protocol; CCCV charge must stand alone. Protocol samples use discharge-positive iPack.

Implementation sources

This reference follows Lemonergy implementation sources. Scientific articles support the linked concepts separately.

Repository: battery-design · Revision: ef9802329b75bc15bb96885f8ed5d49425106696

  • js/test-protocol.js

This implementation and its workflow uses (JSON) · Knowledge graph (JSON-LD)