LiFePO4 (LFP) Dry Electrode with High Loading (70 mg/cm2, Double-Side) for Li-Ion Battery, CLIBDEDSHLLFP
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A LiFePO4 (LFP) Double-Side High-Loading Dry Electrode (~ 70 mg/cm2 total; ~35 mg/cm2 per side) is an ultra-thick, solvent-free cathode configuration engineered for high-energy-density stationary storage, commercial EV prismatic cells, and high-capacity pouch formats. While conventional wet-slurry casting struggles to process thicknesses above 15-20 mg/cm2 due to binder migration, severe mud-cracking, and long drying times, solvent-free dry powder processing overcomes these bottlenecks to form highly cohesive thick electrodes.
The main advantages of dry-process high-loading LFP (~70 mg/cm2) are: (1) Elimination of Binder Segregation: Because no liquid solvent is used, the PTFE binder remains uniformly distributed throughout the 70 mg/cm2 cross-section without vertical migration during drying, preventing insulating skin layers. (2) Enhanced Ion Transport Kinetics: Despite the extreme thickness, dry-processed LFP films maintain a uniform pore-size distribution and lower tortuosity compared to wet-cast equivalents, facilitating efficient lithium-ion diffusion (Li+) across the bulk matrix. (3) Massive Cost and Energy Savings: Bypassing thermal NMP recovery ovens drastically reduces manufacturing footprints and capital expenditure, driving cell production costs down.
| Part Number | CLIBDEDSHLLFP (C-LIB-DE-DSHLLFP) |
| Current collector | 15 um aluminum foil with carbon coating (1 um on each side) |
| Dry Coating Material | Special LFP powder with spherical shape |
| Active Portion | ~92.8% |
| Electrode Sizes |
Rectangle sheet shape: L120 mm*W90 mm (double-side coating) |
| Area Density |
70 mg/cm2 (double-side, each side is 35 mg/cm2) |
| Compaction Density |
3.5 g/cm3 |
| Package Size |
(5 pcs/pack) |
| First Discharging Capacity |
~155 mAh/g (0.1 C, testing voltage range of 3.0-4.2 V) |
| First Columbic Efficiency | 95.5 % |
Notes: (1) Please store the LFP dry electrodes in a dry area (glovebox is preferred); (2) The battery electrodes are highly recommended to be dried at 80-100°C in a vacuum oven for 6-12 h before use.
References:
- K. Kwon, et al. Low-Resistance LiFePO4 Thick Film Electrode Processed with Dry Electrode Technology for High-Energy-Density Lithium-Ion Batteries, Small, 2024, 4, 2300302
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S. Raffenberg, et al. Influence of electrode porosity on physical properties and performance of dry processed LiFePO4-based electrodes, Journal of Power Sources, 2026, 692, 241057