Method for cleaning positive plate after formation of lead-acid battery plates

Abstract

The invention relates to a method for cleaning positive plates after formation of lead-acid battery plates, which is used for solving the problems of high water consumption and uneven plate treatment in the water washing method after formation of the positive plates. The method comprises the following steps: a. soaking solution preparation: preparing a sodium hydroxide soaking solution with the concentration of 1-2%, and evenly stirring; b. soaking: soaking the positive plates after formation in the sodium hydroxide soaking solution for 2-6 minutes; c. and drying: taking out the soaked positive plates, and drying in a drying machine. The method can save a great deal of tap water, reduce the sewage generated in the production process and lower the enterprise cost. The contrast test indicates that motorcycle storage battery produced by using the positive plate cleaned by the method has favorable dry-charged property and storage property compared with the storage battery produced by the positive plate cleaned by the prior method.

Description

technical field [0001] The invention relates to a manufacturing method of a lead-acid storage battery, in particular to a method for cleaning a positive plate of a lead-acid storage battery used for motorcycles after formation, and belongs to the technical field of storage batteries. Background technique [0002] Formation is an important process in the battery manufacturing process. It is the process of chemically and electrochemically reacting raw plates in sulfuric acid solution to convert them into cooked plates. The pole plate has a porous structure. After the formation, there is still a certain amount of acid in the pole plate. It needs to be washed with water to remove the electrolyte (dilute sulfuric acid) contained in the pole plate to improve the performance of the battery. At present, the problem of water washing of the negative plate has been basically solved through a large number of tests and production practices, while the cleaning of the positive plate after ...

AI Technical Summary

Problems solved by technology

At present, after a large number of tests and production practices, the problem of water washing of the negative plate has been basically solved, while the cleaning of the positive plate after formation, the existing process still uses a large amount of tap water to rinse or soak.

The problems with this traditional method are: first, a large amount of industrial sewage will be generated, and the production enterprise needs to treat the sewage, which not only wastes water resources but also increases the production cost of the enterprise; second, it is difficult to control the electrolyte content inside the positive plate by washing the positive plate with water. , so the passivation of the positive plate is often caused during the storage of the plate, which affects the dry charging performance of the battery and makes it difficult to start the car within the specified time after adding liquid.

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