The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Gray (0 members)
- MolecularConcentration (0 members)
- CharacterisationData (5 members)
- NickelIINitrate (0 members)
- ChargeTimePlot (0 members)
- DrainedChargedBattery (0 members)
- ManganesePhosphateBasedElectrode (3 members)
- VoltageControlledProcess (2 members)
- CopperIINitrite (0 members)
- StrontiumBasedElectrode (0 members)
- Magnetic suspension balance (0 members)
- NickelZincBattery (0 members)
- StandardAmountConcentration (0 members)
- DeciSiemensPerMetre (0 members)
- Minus (0 members)
- HardeningByForming (4 members)
- MilliPascal (0 members)
- PropyleneCarbonate (0 members)
- LithiumPhosphate (0 members)
- ThreeManifold (1 member)
- FormingBlasting (0 members)
- Meta Knowledge Base Category (4 members)
- MaximumConcentration (2 members)
- SeparatorThickness (0 members)
- Procedure (8 members)
- ChemicalEntity (0 members)
- LithiumBasedElectrode (1 member)
- JoulePerSecond (0 members)
- Site (2 members)
- LithiumSaltCompound (25 members)
- MiniumumTemperature (3 members)
- NumberOfFiniteVolumeCells (3 members)
- Insulation measurement (0 members)
- MaximumEfficiency (0 members)
- CoherenceLength (0 members)
- SodiumTetrachloroaluminate (0 members)
- PotassiumNitrate (0 members)
- OppositeTerminalPouchWithSealingSeam (0 members)
- VanadiumIIIOxide (0 members)
- WorkPiece (0 members)
- NickelIIAcetate (0 members)
- ElectrodeSurfaceArea (3 members)
- SquareMetrePerJoule (0 members)
- Declaration (2 members)
- CubicMetrePerSquareSecond (0 members)
- CubicCentiMetrePerMoleSecond (0 members)
- Surface quality of the rolls (press rolling) (0 members)
- HotDipGalvanizing (0 members)
- PlanckFunction (0 members)
- MicroBecquerel (0 members)