Description
I. Core Parameters of Pouch Bare Cell (NCM811 – Li Metal, 5/6 Layers)
| Category | Parameter Item | Specification |
|---|---|---|
| Basic Parameters | Nominal Capacity | 1.5 Ah |
| Voltage Range | 3 V ~ 4.3 V | |
| Cell Structure | Stacked | |
| N/P Ratio | – | |
| Separator | 12 μm PE + 2 μm ceramic coating | |
| Cathode | Material | NCM 811 |
| Active Material Ratio | 97.4% | |
| Compaction Density | 3.4 g/cc | |
| Single-Side Areal Density | 24 mg/cm² | |
| Specific Capacity | 220 mAh/g | |
| Number of Layers | 5 layers | |
| Dimensions | 45.5 × 64 mm | |
| Anode | Material | Li (Lithium Metal) |
| Active Material Ratio | 100 μm (thickness) | |
| Compaction Density | – | |
| Single-Side Areal Density | – | |
| Specific Capacity | – | |
| Number of Layers | 6 layers | |
| Dimensions | 46.5 × 65 mm |
II. Coulomb Cell Customization & Service List
| Service Category | Details |
|---|---|
| High-Performance Cathode & Anode Supply | Cathode and anode materials for high-performance lithium-ion and sodium-ion batteries |
| Custom Electrolyte Formulation | High-purity battery-grade lithium salts, sodium salts, additives, solvents; custom synthesis of new molecules; standard high-performance electrolyte formulations matching mainstream manufacturers |
| Custom Electrode Sheets | Customizable cathode/anode materials (commercial-grade or customer-synthesized), adjustable areal density, formulation, compaction, etc.
Single-side areal density: 6–40 mg/cm² Supports wet and dry coating processes |
| Custom Separator Coating | Custom coating services for various separator material systems |
| Solid-State Battery Materials | Lithium niobium oxide, sulfide solid electrolytes, sodium-ion sulfide electrolytes, and other solid-state electrolyte materials |
| Special Finished Cell Customization | – High energy density: >380 Wh/kg with stable cycling
– High rate: for FPV drone batteries – High safety: >300 Wh/kg, nail-penetration resistant, 180°C hot-box test qualified – Anode-free lithium battery: >500 Wh/kg |
| Bare Cell Customization | Full material system customization available
<strong>Cathode</strong>: Li-ion (NCM, LFP, LCO, Li-rich, LMFP); Na-ion (NFM, NMO, NFPP, NVP, NFS) <strong>Anode</strong>: Graphite, Si-C, hard carbon, Li metal, carbon-coated Al/Cu foil, alloy anode, Sn anode |
| Battery Test Fixtures | Standard battery test fixtures, dedicated fixtures for solid-state batteries |
| Battery Safety Performance Testing | Nail penetration, short circuit, AR test, heating, overcharge, overdischarge, etc. |
| Battery Environmental Performance Testing | Ambient-temperature cycling & rate performance; high-temperature performance at 45°C; low-temperature performance from −10°C to −50°C |
III. Reference Process: Electrolyte Filling & Formation for Long-Cycle Industrial Liquid Batteries
| Process Step | Operating Parameters |
|---|---|
| 1. Cell Electrolyte Filling | Filling ratio: 2.0 g/Ah
Completed in a glove box |
| 2. Electrolyte Wetting | Temperature: 45°C
Duration: 24 h Performed in an oven |
| 3. Cell Formation | Conducted on formation equipment with heating and pressurization
Temperature: 45°C Pressure: 10.0 kg/cm² Procedure: 0.05C charge for 3 h → 0.1C CC charge up to 4.0 V |
| 4. Cell Aging | Temperature: 45°C
Duration: 12 h |
| 5. Cell Grading & Capacity Testing | 0.1C constant-current charge/discharge between cutoff voltages (3.0–4.3 V), 2 full cycles |
| 6. Cell Performance Testing | Cycling steps set according to target rate requirements |
IV. Performance Curves
(Performance curve diagrams)
V. Soft Pack Cell Design Dimensions (with Tolerances)
| Item | Dimension / mm | Tolerance / mm |
|---|---|---|
| Cell Width (W) | 50 | ±1.0 |
| Cell Folded Edge Width (W1) | 1 | ±0.5 |
| Cell Length (H) | 80 | ±1.0 |
| Tab Height (H1) | 14.5 | ±1.0 |
| Cell Top Edge Height (H2) | 10 | ±1.0 |
| Cathode Tab Width (B1) | 8 | ±0.2 |
| Anode Tab Width (B2) | 8 | ±0.2 |
| Anode Tab Edge Width (W2) | 12 | ±1.0 |
| Cathode Tab Edge Width (W3) | 12 | ±1.0 |
| Sealant Exposure Height (D) | 1 | ±1.0 |
VI. Electrode & Cell Customization Service Notes
- Electrode Sheet Customization
- Low MOQ: Available from 3 kg of active material
- Transparent formulation: Coated strictly per customer’s formula
- Adjustable parameters: Current collector specifications, electrode dimensions, etc.
- Process options: Supports both dry and wet electrode manufacturing
- Cell Customization
- Customizable specifications: Cell dimensions, nominal capacity, cathode/anode materials, separator coating
- Process support: Dry-process electrode customization available
If you are interested, have any questions, or require specific customization, please contact us at: inquiry@atomfair.com
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