How to do high temperature aging test of cadmium nickel battery?

According to the standard requirements of IEC 61951-1/EN61951-1, the high temperature aging test of nickel-cadmium batteries needs to be carried out at 70°C for 6 months. The condition of aging at 70°C for 6 months is to simulate the condition of constant endurance charging at 40°C for 4 years. Next, let's take a look at how this test method works.

1. Test sample: NiCd battery

2. Test equipment: battery explosion-proof high temperature test chamber

3. Recommended brand: Huanyi Instrument

Test steps for high temperature aging test:

1. Before the test, the cells should be discharged at 20±5°C with a current of 0.2IA to a cut-off voltage of 1.0ItA, and then stored at +40°C for 16h ~ 24h.

2. After the first charge acceptance test at +40°C, the cells are stored at room temperature of +70°C+2°C for 16h ~ 24h.

3. During the aging period of +70°C for 6 months, in order to prevent the temperature of the battery shell from exceeding 75°C during the charging process, if necessary, the high temperature box should provide forced air.

4. The discharge time of three cycles at +70°C should be recorded. There should be no leakage of electrolyte during the test.

5. After the entire aging is completed, the cells are stored at + 40°C for 16h ~ 24h.

For the above-mentioned high temperature aging test method, if you have any doubts, you can visit the official website of "Huanyi Instrument" and consult relevant technical personnel.