4662 Dry Pouch Cell (Unfilled)

4662 Dry Pouch Cell (Unfilled)
Application: Research and Development of Electrolytes, Formation Protocols, and Performance Testing
Product Overview: This is an unfilled dry pouch cell (Model 4662) with stable, pre-assembled electrodes, suitable for direct electrolyte injection and performance evaluation across multiple lithium-ion and sodium-ion chemistries.

Key Specifications (Electrode Parameters – Refer to Raw Materials Table):
– Cell Dimensions: Model 4662 (4.6 mm T x 62 mm W, nominal)
– Common Active Material Content (Graphite): 93.20%
– Common Current Collector Density: 1.4 g/cm^3 (Graphite Anode Base)

Detailed Specifications by Chemistry (Reference Data for 1.5 Ah / 2 Ah Stacks):

1. Li-ion: LFP / Graphite (1.5 Ah Stack)
– Cathode Model: DF-5 (95.40% active mass)
– Double-Sided Areal Density: 30.2 mg/cm^2
– Compaction Density: 2.3 g/cm^3
– Recommended Voltage Range: 2.5 V ~ 3.65 V
– Recommended Injection Volume: 4.5 g/Ah
– Reference Resistance: <= 18 mOhm

2. Li-ion: NCM523 / Graphite (1.5 Ah Stack)
– Cathode Model: T52S (95.50% active mass)
– Double-Sided Areal Density: 23 mg/cm^2
– Compaction Density: 3.3 g/cm^3
– Recommended Voltage Range: 3.0 V ~ 4.3 V
– Recommended Injection Volume: 3.5 g/Ah
– Reference Resistance: <= 15 mOhm

3. Li-ion: NCM622 / Graphite (1.5 Ah Stack)
– Cathode Model: T61R (97.50% active mass)
– Double-Sided Areal Density: 22.3 mg/cm^2
– Compaction Density: 3.3 g/cm^3
– Recommended Voltage Range: 3.0 V ~ 4.3 V
– Recommended Injection Volume: 3.5 g/Ah
– Reference Resistance: <= 15 mOhm

4. Li-ion: NCM811 / Graphite (1.5 Ah Stack)
– Cathode Model: KY-183 (95% active mass)
– Double-Sided Areal Density: 21 ± 0.4 mg/cm^2
– Compaction Density: 3.27 g/cm^3
– Recommended Voltage Range: 3.0 V ~ 4.3 V
– Recommended Injection Volume: 3.5 g/Ah
– Reference Resistance: <= 15 mOhm

5. Li-ion: LCO / Graphite (1.5 Ah Stack)
– Cathode Model: LC95X (96% active mass)
– Double-Sided Areal Density: 22.8 mg/cm^2
– Compaction Density: 4.0 g/cm^3
– Recommended Voltage Range: 3.0 V ~ 4.5 V
– Recommended Injection Volume: 3.5 g/Ah
– Reference Resistance: <= 15 mOhm

6. Na-ion: Layered Oxide / Hard Carbon (1.5 Ah Stack)
– Cathode Model: MS-XN-33S (95.50% active mass)
– Anode Material: Hard Carbon (type-2) (92% active mass)
– Double-Sided Areal Density: Cathode 28.6 mg/cm^2, Anode 12.68 mg/cm^2
– Compaction Density: Cathode 2.8 g/cm^3, Anode 0.9 g/cm^3
– Recommended Voltage Range: 1.5 V ~ 4.0 V
– Recommended Injection Volume: 8.0 g/Ah
– Reference Resistance: <= 15 mOhm

7. Li-ion: NCM811 / Silicon-Carbon (2 Ah Stack)
– Cathode Model: KY-183 (95.5% active mass)
– Anode Material: Silicon-Carbon (SL450B-SC) (94% active mass)
– Double-Sided Areal Density: Cathode 32 ± 0.2 mg/cm^2, Anode 15 ± 0.2 mg/cm^2
– Compaction Density: Cathode 3.4 ± 0.1 g/cm^3, Anode 1.4 ± 0.1 g/cm^3
– Recommended Voltage Range: 2.8 V ~ 4.25 V
– Recommended Injection Volume: 3.5 g/Ah
– Reference Resistance: <= 15 mOhm Operating Procedure Reference: 1. Electrolyte Injection: Injection amount references recommended values; process must be completed in a glove box. 2. Cell Pre-Aging (Chen Hua): Pre-aging temperature 45deg C, duration >= 15 hours. Process must be completed in an oven.
3. Cell Formation (Li-ion): Rest 5 min, 0.02C constant current charge 5h, then 0.1C constant current charge 3h, 1 cycle.
4. Cell Formation (Na-ion): 45deg C, pressure 4 kg/cm^2, 0.02C constant current charge 5h or 6h, rest 3 min, 0.2C constant current charge to 3.95 V or 5h, 1 cycle (Neware test cabinet setup) OR 45deg C, pressure 3.5 kg/cm^2, 0.02C constant current charge 5h, then 0.1C constant current charge 3h, 1 cycle (Hot press formation machine setup).
5. Cell Aging: Aging temperature 45deg C, duration >= 24 hours.
6. Cell Testing: Set rate capability or cycle test steps.