source:Geerady       date: 2022-06-17
There are mainly: a. Constant voltage limit flow charge; b. The constant voltage value in the final stage of charging is increased and the current is limited to a lower value (charge 1-2h). The charging method for the battery long life cycle should be constant pressure limit stream charging (IU), or the constant voltage value of the charging final stage (charge 1-2h) current is limited to the lower value, this charging method is referred to IUI charging method.
This method charging usual life cycle up to 250-350 times, because there is no deadly grid corrosion or "dry" battery does not fail. If you continue to use a suitable charging method, the negative electrode will undermine, and the sulfate will be serious. For batteries, IU charging and iUI charging for new batteries or electrolytic liquid saturation, which is the same as the rich liquid-rich battery, the positive and negative is polarized.
When the gas passage has been opened, oxygen successfully reaches the negative electrode, the battery has been fully charged. Although the charging coefficient is still very low (1.05? 1.10), the overcharge fluid is the normal hydrogenation process and the grid corrosion process, which is also a process of reducing the electrolyte saturation in the partition. Once the saturation is lowered, the oxygen transmission is smooth.
The charge current is involved in oxygen reduction, fully charged, special application IUI charging method, but the charging termination voltage is low, the charging coefficient is high. Since the charge coefficient is limited before the negative electrode is fully charged, the current is involved in oxygen circulation, and the battery capacity is significantly lower at a certain point.
This process is in the next loop. The problem is not to control the amount of charge, in fact, more and more side effects that are coexisting with oxygen circulation must be suppressed, although it is difficult to overcome, if not overcome, the greater the final current, the more heat more, The process of restrictive factors are made. For this reason, a "current interrupt" technology has developed, which can allow between each current pulse. Can provide heat dissipation.
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