Diaphragm paper processing method for manufacturing dry battery

Abstract

The invention discloses a diaphragm paper processing method for manufacturing a dry battery. The method comprises the steps of: spraying water at a constant pressure to the diaphragm paper, supplying water to a spray gun through a water storage tank, spraying water to the diaphragm paper by the spray gun, and maintaining the pressure of the water storage tank constant; winding the diaphragm paper by a paper winding assembly comprising a paper winding rod and a paper winding mandrel, and carrying out insock on the bottom of the diaphragm paper by an insock spare so that the diaphragm paper is moulded columnar with a bottom surface; inserting the diaphragm paper into a battery and performing impurity detection, overhigh diaphragm paper detection and overlow diaphragm paper detection on the battery; removing subquality products detected in the step 3; in the step 1, maintaining the pressure of the water storage tank constant by introducing compressed air adjusted by a constant pressure valve to the water storage tank; and in the step 2, after insock, extracting the paper winding mandrel (8) from a certain distance, then falling into the inner bottom part of the diaphragm paper. According to the diaphragm paper processing method for manufacturing the dry batter provided by the invention, constant pressure water spray and non-adhesion of paper by the paper winding rod as well as multiple synchronous detection can be realized, thereby improving the quality and the reliability of the diaphragm paper.

Description

technical field [0001] The invention relates to the field of battery manufacturing, in particular to a method for treating separator paper used in dry battery manufacturing. Background technique [0002] Separator paper is an important part in battery manufacturing. The function of separator paper is to separate the positive and negative electrodes of the battery to prevent short circuits, and at the same time absorb the electrolyte in the battery to ensure high ionic conductivity. The performance of the separator paper determines the interface structure, internal resistance and electrolyte retention of the battery. Due to the large number of zigzagging micropores in the separator, the ionophores in the electrolyte can freely pass through the micropores and migrate between the positive and negative electrodes to form the internal conductive loop of the battery, while the electrons pass through the external loop between the positive and negative electrodes. The migration for...

AI Technical Summary

Problems solved by technology

In the prior art, the detection of the separator paper is mainly before the battery is inserted. For example, the patent application number 200710076009.0 disclosed by the State Intellectual Property Office is a method and device for detecting trachoma in the battery separator paper, which cannot realize the insertion of the separator paper into the battery. after detection

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