| LAB | Lead-acid batterie(s) |
| GF | Graphite felt |
| NIT | Nitrate electrolyte |
| ACT | Acetate electrolyte |
| MSA | Methanesulfonate electrolyte |
| CV | Cyclic voltammetry |
| L | Ligninsulfonate additive |
| T | Triton X-100 additive |
| GF + Pb | GF sample modified with Pb (polarized negatively during modification) |
| GF + PbO2 | GF sample modified with PbO2 (polarized positively during modification) |