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Electrode Porosity Solid Volume Term Tool

Split an explicitly supplied electrode bulk volume into pore and solid volumes using a supplied porosity.

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Description

Split bulk electrode volume into supplied porosity and solid terms.

Electrochemical quantities require explicit electrode references, current sign, area definition and time basis. Geometric area differs from active-area conventions, charge differs from charge equivalents, and a logarithmic current coordinate needs a same-unit reference magnitude. Local sign changes and coordinate terms do not fit kinetics or establish a valid experiment.

Split bulk electrode volume into supplied porosity and solid terms.

When to use this tool

Use Electrode Porosity Solid Volume Term when you already have bulkVolume, porosity and need to split bulk electrode volume into supplied porosity and solid terms.

How to use the tool and how it works

  1. Enter bulkVolume, porosity. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read poreVolume, solidVolume. Use the output convention below.

Require bulkVolume>=0 and porosity in [0,1]; pore=bulk*porosity, solid=bulk*(1-porosity).1

Input fieldMeaning and unitsAccepted input
bulkVolumeBulk VolumeRequired. Finite number; minimum 0.
porosityPorosityRequired. Finite number; minimum 0; maximum 1.
Output fieldInterpretationReturned shape
poreVolumePore VolumeRequired. Finite number.
solidVolumeSolid VolumeRequired. Finite number.
json
{
  "input": {
    "bulkVolume": 100,
    "porosity": 0.25
  },
  "output": {
    "poreVolume": 25,
    "solidVolume": 75
  }
}

Limitations and assumptions

  • Porosity is supplied and dimensionless. No accessible pore volume, surface area, transport, composition or actual structure is measured.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Inspect calibrated instrument records, reference-electrode details, area definitions and the complete experiment before interpreting results. Use the full electrochemical model and verified operating conditions when a local current, charge, sweep or impedance-representation term cannot answer the scientific question.

References

  1. Calculation and input contract: electrochemistry/electrode-porosity-solid-volume-term — tool.io

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