5 | Cycle Life 循环寿命 | A battery unit shall be repeated 100 charge/discharge cycles, charged at CC-CV 0.2CmA to 4.20V , laying the battery 5min, discharged at 0.2CmA to3.0V end voltage, After 500 cycles, recording the discharging capacity 电池用0.2CmA恒流恒压充饱电至4.2V,搁置5min,用0.2CmA电流放电到3.0V,记录放电容量,循环500次. | Nominal capacity 标称容量 Cycle life循环寿命≥500 times次 |
6 | Self-discharge 自放电 | After the standard charging, storied the cells under the condition as No.6.4 for 28 days, then measured the capacity with 0.5C till 2.5V 标准充电后,在No.6.4条件下贮存28天,再以0.5C放电至2.5V所放出的容量。 | Residual capacity:>90% 余容量: >90% |
9 | Temperature Characteristics 温度特性 | 1. According to item 5.5, at 20±5℃. 2. Capacity comparison at each temperature, measured with constant discharge current 1C with 2.5 V cut-off. Percentage as an index of the capacity compared with at 20℃ 1.在20±5℃条件下,用5.5方法将电池充电。 2.在不同温度条件下,用0.5C的电流恒流放电至截止电压2.5V。以20℃时放电容量为基准计算百分比。 | -20℃: ≥60% 20℃: 50℃: ≥85% |
10 | Storage Characteristics 储存特性 | 1. According to item 5.5, at 20±5℃. 2. The battery shall be stored at 50±5℃ for 7days and rested at room temperature for 1 hour then measured with constant discharge current 1C with 3.0V cut-off. 1. 在20±5℃条件下,用5.5方法将电池充电。 2.将电池在50±5℃条件下贮存7天,然后在常温下静置1小时,用0.5C的电流恒流放电至3.0V截止电压。 | Retained Capacity ≥85% |