7号10440镍氢电池

项目Items

测试程序Testing Procedure

标准Requirements

8.1.1标称电压Rated Voltage

电池按6.1充电后，按6.2放电过程的平均工作电压

Charge according to 6.1, then calculate the average voltage during discharge process according to 6.2

1.2V

8.1.2放电性能Discharge Performance

电池按6.1充电后1小时内以0.5CA恒流放电到3.0V

Charge according to 6.1, then discharge within 1 hour with constant circuit of 0.5CA to the end voltage is 3.0V

≥120min

电池按6.1充电后1小时内以1.0CA恒流放电到3.0V

Charge according to 6.1, then discharge within 1 hour with constant circuit of 1.0CA to the end voltage is 3.0V

≥57min

8.1.3循环寿命Cycling Life

在环境温度20±5℃的条件下，以0.5CA先恒流充电至上限电压，再恒压充电至充电电流≤20mA；搁置0.5h后以0.5CA放电至3.0V，放电结束后搁置0.5-1h后进行下一个循环，直至连续两次放电时间小于72min，则认为寿命终止。

Under the ambient temperature of 20±5℃, charge with a constant circuit of0.5CA to upper limit voltage, then charge with constant voltage till the circuit is no more than 20mA; lay the battery aside for 0.5 hour, then discharge with 0.5CA till the end voltage is 3.0V; lay the battery aside for 0.5-1 hour before next cycle; when the discharge time of the consecutive discharge is both lower than 72 minutes, the cycle life is over.

≥300次Times

8.1.4荷电保持能力

Capacity Holding

按6.1充电,在温度20±5℃的环境下放置28天，然后以0.2CA放电至3.0V,电池放电容量≥90%标称容量。

Charge according to 6.1, lay the battery aside for 28 days in the ambient temperature of 20±5℃,then discharge with0.2CA till the end voltage 3.0V appears, the capacity given out should be no less than 90% of the rated capacity.

容量Capacity≥1200mAh

8.1.5存贮Storage

自生产日期到测试日期不足3个月的电池按6.1充电方式充入40%－50%的容量,然后在环境温度20±5℃,相对湿度45%－85%的环境中存贮12个月，存贮期满后按6.1充满电，0.2CA放电至3.0V。

As for the battery life less than 3 months, charge into 40-50% of the rated capacity according to 6.1, then store for 12 months under a condition of ambient temperature of 20±5℃ and 45%-85% RH; after storage, charge according to 6.1, then discharge with0.2CA till the end voltage is 3.0V.

放电时间Discharge Time≥4h.

8.2.1短路Short Circuit

电池按6.1充满电后,将接有热电偶的电池置于通风橱中，短路其正负极（线路总电阻不大于50mΩ），试验过程中监控电池温度，当电池温度低于其峰值10℃时，结束试验。

After charging according to 6.1, put a battery connected with a thermocouple into ventilation cabinet, short circuit “+” and “-”(overall resistant of the loop is no more than 50mΩ); monitor the battery temperature during the testing process, when the battery temperature is lower than the peak value for 10℃, the test is over.

电池不起火,不爆炸。电池表面温度小于150℃。

No fire, no explosion. Surface temperature is lower than 150℃.

8.2.2过充

Overcharge

电池按6.1充满电后，将接有热电偶的电池放置于通风橱内；连接正负极于一恒流恒压电源，调节电流至3CA，电压为10V，然后对电池进行充电，直至电池电压为10V，电流接近0A。实验过程中监测电池温度变化，当电池温度下降到比峰值低约10℃，结束实验。

After charging according to 6.1, put a battery connected with a thermocouple into ventilation cabinet, connect the “+” and “-” with a constant circuit and constant voltage power, adjust the circuit to 3CA and the voltage to 10V. charge the battery till the voltage is 10V and the circuit is about to 0; monitor the battery temperature during the testing process, when the battery temperature is lower than the peak value for 10℃, the test is over.

电池不起火,

不爆炸。

No fire, no explosion

8.2.3

重物冲击

Heavy Shock

电池放置于冲击台上,将10公斤重锤自1m高度自由落下,冲击已固定在夹具中的电池(电池受力位置参见附图4)。

Put a battery on the shock platform, let a hammer of 10kg fall down freely from a height of 1m, shock the battery fixing in the clamp(for the position of the battery, see figure 4)

电池不起火,

不爆炸。

No fire, no explosion

8.2.4

热冲击

Thermal

Shock

电池按6.1充电后，将电池置于热箱中，温度以（5±2℃）/ min的速率升至150±2℃并恒温10 分钟。

Charge the battery according to 6.1, then put a battery into a thermal box, heat with a temperature rising speed of（5±2℃）/ min till 150±2℃,then keep this temperature constant for 10 minutes.

电池不起火,

不爆炸。

No fire, no explosion