Complaint
| Time | Model | Batch number | Quantity | ||||
| 2019-9-18 | TOB-NCA-88 | 190918 | 25KG | ||||
| NO. | ITEM | UNIT | STANDARD | RESULT | OK/NG | TEST METHOD | |
| 1 | Appearance | \ | Black powder | Black powder | OK | Visual | |
| 2 | Tap density | G/cm3 | ≥2.4 | 2.86 | OK | Tap density meter | |
| 3 | Compacted density | G/cm3 | ≥3.5 | 3.65 | OK | Carver | |
| 4 | Moisture | ppm | ≤600 | 425.8 | OK | Metrohm 831-860 | |
| 5 | Particle size | D10 | um | 5.5±2.0 | 5.85 | OK | Malvern particle size tester |
| 6 | D50 | um | 11.5±2.0 | 11.67 | OK | ||
| 7 | D90 | um | 21.0±4.0 | 21.55 | OK | ||
| 8 | DMax | um | ≤50.0 | 33.57 | OK | ||
| 9 | PH | \ | ≤11.7 | 11.35 | OK | PH Meter | |
| 10 | BET | M2/g | 1.8±0.5 | 1.82 | OK | MicroxeriticsTristar 3000 | |
| 11 | Total magnetic matter | ppb | ≤100 | 46 | OK | ICP | |
| 12 | OH- | Wt% | ≤0.2 | 0.106 | OK | METTLER TOLEDO G20 | |
| 13 | CO2-2 | Wt% | ≤0.4 | 0.164 | OK | ||
| 14 | Efficiency | % | ≥87 | 89.08 | OK | CR2016 coin cell | |
| 15 | Capacity | mAh/g | ≥195 | 205.3 | OK | ||
| Test result: OK | |||||||
| Inspector | Auditor | Approver | |||||
