NaCP50160118-70E3 Sodium-Ion Cell Spec Sheet

This document is the official product specification approval sheet for the NaCP50160118-70E3 sodium-ion rechargeable battery cell manufactured by JiangSu Highstar Battery Manufacturing Co., Ltd. The cell has a nominal voltage of 3.05V and a nominal capacity of 70Ah, with a charge voltage of 3.95V and discharge cut-off at 1.8V. It supports standard charging at 0.5C and rapid charging at 1C, with a maximum discharge current of 3C for 30 seconds. Operating temperature ranges from -20°C to 55°C for charging and -40°C to 60°C for discharging. The cell weighs 1.8±0.2kg and has an impedance ≤0.5mΩ. Performance criteria include standard cycle life of ≥2000 cycles at 80% capacity retention, charge retention ≥90%, and recovery ≥95%. Safety tests cover overdischarge and overcharge conditions, requiring no leakage, fire, or explosion. The document also includes handling precautions, storage guidelines, and warranty information.