The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- ManganeseOxideCompound (4 members)
- DeviceSample (0 members)
- ElectricCurrentAssistedSintering (0 members)
- Anion (12 members)
- PotentiostaticCycling (0 members)
- Total formation time (0 members)
- LawOfMassAction (0 members)
- Active materials, binders, additives (0 members)
- LeadIIChloride (0 members)
- SecondPerRadianCubicMetre (0 members)
- MetalElectrode (4 members)
- SpecificActivity (0 members)
- SolidSol (0 members)
- MembranelessFlowBattery (0 members)
- IridiumAtom (0 members)
- LinearDensityOfElectricCharge (0 members)
- CubicDecaMetre (0 members)
- ZincFlowBattery (3 members)
- Matter (1 member)
- Formation protocol (lab scale) (0 members)
- Hydroxylamine (0 members)
- AttoJoule (0 members)
- SurfaceAB (0 members)
- TwoSidedHeating (0 members)
- PerSquareSecond (0 members)
- Voltage range (formation) (0 members)
- TrisPentafluorophenylBorane (0 members)
- MathematicalSymbol (0 members)
- GasSolution (0 members)
- Line Speed Measurement (0 members)
- CarbonMonofluorideElectrode (0 members)
- IRI (1 member)
- WattPerMetre (0 members)
- BruggemanCoefficient (0 members)
- Tool (0 members)
- BerkeliumSymbol (0 members)
- SourceVoltage (0 members)
- Meeting (0 members)
- NanoGramPerCubicMetre (0 members)
- Temperature (insertion) (0 members)
- KilogramSquareMilliMetre (0 members)
- TitaniumIIIOxide (0 members)
- AqueousSolution (1 member)
- NegativeElectrodeCoatingPorosity (0 members)
- Electrocapillarity (0 members)
- ElectricChargeDensity (0 members)
- PhysicalPhenomenon (0 members)
- Niobium (0 members)
- TappedDensity (0 members)
- HardCarbon (0 members)