Secondary battery charging method
A charging method and secondary battery technology, which are applied in the direction of secondary battery charging/discharging, secondary battery, and secondary battery repair/maintenance, etc. problems, to improve battery performance and user experience, increase charging speed, and slow down temperature rise.
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Embodiment 1
[0046] see figure 2 , in an environment of 25°C, use the secondary battery charging method of the present invention to charge the above-mentioned battery, the specific steps are as follows:
[0047] 1) Charge the battery with a constant current of 2C, and the charging time is 9s;
[0048] 2) Stop charging and let the battery stand still for 0.5s;
[0049] 3) Discharge the battery with a constant current of 0.05C, and the discharge time is 0.5s;
[0050] 4) Stop discharging and let the battery stand for 0.5s;
[0051] 5) Repeat steps 1) to 4) until the battery voltage reaches 4.35V;
[0052] 6) Charge the battery with a constant voltage of 4.35V until the battery current reaches 0.05C.
[0053] The steps of Examples 2-11 are basically the same as those of Example 1, the only difference is the relevant parameters, and the specific parameters of each example are shown in Table 1.
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