Storage battery staged internal formation charging process

Abstract

The invention discloses a storage battery staged internal formation charging process and relates to the field of storage battery formation, solving the technical problems of long formation time and low electricity utilization rate in the prior art. In the internal formation charging process disclosed by the invention, staged treatment is carried out according to the principle of the formation process, different internal formation charging methods are adopted according to different characteristics of each stage, and depolarization is carried out on a storage battery by virtue of deep discharging and standing, so that the process time of internal formation can be shortened, and the electricity consumption can be reduced.

Description

【Technical field】 [0001] The invention relates to a storage battery processing method, in particular to a charging process for internal formation of the storage battery. 【Background technique】 [0002] The battery formation process is divided into two methods: internal formation process and external formation process. The existing internal formation process of the battery is completed by one-time charging with acid, and the density of the added electrolyte is too high, resulting in long charging time and low activity during the internal formation process of the battery. In the process of material conversion, the efficiency of electrochemical reaction is low. Moreover, in the internal formation process, the formation current is an important process parameter. The magnitude of the forming current has a great influence on the forming efficiency, the forming cost and the forming quality of the plate. When the formation current is low, the current density decreases, and the for...

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Problems solved by technology

When the formation current is low, the current density decreases, and the formation charge is insufficient, resulting in impermeable formation of the plate.

If the formation time is prolonged, on the one hand, the production efficiency will be reduced; on the other hand, the long-term immersion of the plate in the sulfuric acid electrolyte will make the lead sulfate crystals on the surface of the plate larger, making it difficult to form and transform the plate.

When the formation current is too high, the polarization of the electrode will increase, the battery voltage will rise higher, and the gas evolution will intensify, which will not only reduce the current efficiency, increase energy consumption, but also easily cause the active material of the plate to loose, fall off or crack.