凤凰新能源手机电芯适用：小米BM3F：小米8透明探索版纯钴4.4v3000mah电芯/原装工艺/黑皮/现货供应/厂家直销

5.3.1

标准充电

Standard Charge

先以 0.5C 恒流充电，当电芯达到上限电压 4.4V 后，改为恒压充电直到充电电流小于或等于 0.02C

Charging the cell initially with constant current at 0.5C and then with

constant voltage at 4.4V till charge current declines to 0.02C.

5.3.2

标准放电/容量

Standard Discharge

/Capacity

电芯满充电后，以 0.5C 电流连续放电至 3.0V 截止电压所放出的容量。

The capacity means the discharge capacity of the cell, which is measured

with discharge current of 0.5C to 3.0V cut-off voltage after the standard charge.

容量 Capacity≥2900mAh

5.3.3

倍率性能Capacity Ratio

1.标准模式充满电 2.搁置 5 分钟 3.分别以0.2C/0.5C/1.0C/2.0C 电流放电至 3.0V。

1.Charge the cells with standard charging model 2.Set aside 5 minutes 3.Discharge the cells to 3.0V with constant current 0.2C/0.5C/1.0C/2.0C.

0.5C 放电容量≥0.2C 放电容量*95%，1.0C放电容量≥0.2C 放电容量*90%，2.0C 放电容量≥0.2C 放电容量*70%

The discharge capacity:0.5C≥0.2C*95%,

1.0C≥0.2C*90%, 2.0C≥0.2C*70%

5.3.4

充放电循环

Charge/Discharge Cycle

25±2℃条件下 0.5C 充放电循环 300 次

The capacity on 0.5C discharge shall be measured after 300 cycles Of 0.5C charge and discharge at 25±2℃

容量保持率≥80% Capacity Retention≥80%

5.3.5

荷电保持能力

Retention Capability

电芯满充电后，在 20±5℃的环境条件下存放 28 天，然后以 0.5C电流连续放电至 3.0V 终止电压。

After Standard charging , storing the cell 28 days at 20 ± 5°C and then

discharge with constant current of 0.5C till 3.0V cut-off voltage.

容量保持率≥85% Capacity Retention≥85%

5.4.1

高温

High Temperature

满电态的电池放置在（55±2）℃的高温箱里 2 小时后，以0.5C 恒流放电至 3.0V

After standard charging,Put the cell into oven for 2 hours at

（55±2）℃,then discharge to cut-off 3.0V with 0.5C current

容量保持率≥95%,厚度变化率≤5%,无漏液、无冒烟、无起火、无爆炸

Capacity Retention≥95%,Thickness ratio≤

5%,no leak, no smoke, no fire, no explosion.

5.4.2

低温

Low Temperature

满电态电池放置在（-10±2）℃的烤箱里(16~24)小时后，以0.2C 恒流放电至 3.0V

After standard charging,Put the cell into oven for (16~24) hours at

（-10±2）℃,then discharge to cut-off 3.0V with 0.2C current

容量保持率≥70%,厚度变化率≤5%,无漏液、无冒烟、无起火、无爆炸

Capacity Retention≥70%,Thickness ratio≤

5%,no leak, no smoke, no fire, no explosion.

5.4.3

恒温恒湿Constant Temperature and Humidity

满电态电池放置在温度为（40±2）℃、湿度为 90%-95%的恒温恒湿箱里 48 小时后，取出搁置 2 小时，以 0.5C 恒流放电至 3.0V

After standard charging,Put the cell into oven for 48 hours at（40±2）℃

& humidity is 90%-95%,set aside for 2 hours at （23±5）℃, then discharge to cut-off 3.0V with 0.5C current

容量保持率≥90%,厚度变化率≤5%,无漏液、无锈蚀、无起火、无爆炸

Capacity Retention≥90%,Thickness ratio≤ 5%,no leak, no rust, no fire, no explosion.

满充电电芯从 1 米高处自由跌落到 20mm 厚的硬木板上，从 X，Y，Z

正负方向每个方向自由跌落一次

5.4.4

自由跌落

Drop

After  standard  charging,  the  cell  is  to  be  dropped  from  a  height of

1  meter  onto  a  thickness  of  20mm  board,  dropped    once  in the

无漏液、无冒烟、无起火、无爆炸

No leak, no smoke, no fire, no explosion.

positive  and  negative  directions  of  three  mutually  perpendicular  X,

Y,   Z axes.

5.4.5

振动

Vibration

满电态的电芯在三个相互垂直的方向按振幅0.8mm 的谐振形式进行振动, 频率在 10-55HZ 以 1Hz/min 的速率变化，往复振动 90 至100min。

After standard charging, fixed the cell to vibration table and subjected to vibration cycling that the frequency is to be varied at the rate of 1Hz per minute between 10Hz and 55Hz, the excursion of the vibration is 0.8mm.

The cell shall be vibrated for 90~100minutes per axis of X/Y/Z axes.

无漏液、无冒烟、无起火、无爆炸

No leak, no smoke, no fire, no explosion

5.5.1

过充Over-Charge

满电态的电芯，以 3C 电流对电池进行充电,当电压达到 4.8V 时转为恒压充电,直到充电流流降到 5mA

After standard charging,charge the cells with 3C current, charge with constant voltage 4.8V when the voltage reaches 4.8V , until the charge

current down to 5mA

无起火、无爆炸

No fire, no explosion

5.5.2

过放Over-Discharge

满电态电池放置在保护箱内，接好测试导线,外接 30Ω电阻负载放电24h

After standard charging,Put the cells in the protective box, connect the

test wires, and connected a resistance of   30 ohm,discharge for 24 hours

无起火、无爆炸

No fire, no explosion