Grading constant current charging method with voltage-controlled pulse
A technology of constant current charging and pulse charging and discharging, which is applied in the direction of secondary battery charging/discharging, secondary battery repair/maintenance, etc., and can solve the problems of long charging process time and charging power loss, etc.
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[0019] As attached figure 1 As shown, charging is divided into three stages, and each stage is divided into two processes: constant current charging and pulse charging and discharging: The first stage constant current charging current I 1 The value is set according to the rated current of the battery electrode terminal and its connecting cable, the constant current charging current I of the second and third stages 2 , I 3 Respectively take the value I 1 1 / 2 and 1 / 3 of each phase; the charging current value of the charge and discharge pulse process of each stage is the same as the current value of the constant current charging at this stage, namely I 1 , I 2 And I 3 ; The discharge current of each stage of the charge and discharge pulse process uses the same small current in each stage, and the value is I f = 0.006I 1 .
[0020] The above-mentioned three-stage charging process control method: the first stage constant current I 1 The charging process continues until ...
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