Hard Carbon Anode Electrode Sheet for Sodium-Ion Batteries, 5 μm Material, High Capacity 307.5 mAh/g, 10 x 10 cm, 5 Pcs/Pack

About this item

• High Capacity & Efficiency: delivers a specific discharge capacity of 307.5 mAh/g with a first Coulombic efficiency of 87.4% (half-cell test at 0.1C, 0.00-2.00 V), providing strong energy density for sodium-ion battery anodes
• Hard Carbon Active Layer: composed of high-performance 5 μm hard carbon with a 95.5% active material ratio on a 12 μm aluminum foil current collector (areal density 3.30 mg/cm²), maximizing practical electrode capacity
• Coating Uniformity & Areal Performance: coating areal density of 6.00 mg/cm² (± 2.0% tolerance) with a stable areal capacity of 1.73 mAh/cm², ensuring consistent electrochemical behavior and reproducible SIB testing
• Compaction & Storage Condition: compaction density of 0.90 g/cm³ (calendered version available; uncalendered sheets require pressing before use); vacuum-sealed packaging provides a 6-month shelf life, recommended use within 1 month after opening
• Processing & Protocol Notes: supplied with technical guidelines including drying at 85-105°C for 4 h (vacuum drying with two gas exchanges); areal density should be calculated based on actual disc mass for accurate electrode evaluation