Method for efficiently and automatically clearing residual alkali solution after formation of zinc-silver battery pole piece

An automatic cleaning technology for zinc-silver batteries, which is applied in the manufacture of silver storage batteries, alkaline storage batteries, and alkaline storage batteries. The risk of residual alkaline solution corroding electrodes, reducing the amount of pure water used for cleaning, and saving resources

Pending Publication Date: 2017-05-10
SHANGHAI INST OF SPACE POWER SOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The problem solved by the present invention is to solve the problem of low manual cleaning efficiency of zinc-silver battery pole pieces and the difficulty of completely removing the lye in the pores of the pole piece. It provides an efficient and automatic residual lye removal system and method, and proposes a Quantitative determination of the remaining amount of pores in the pole piece, so as to eliminate the risk of the zinc-silver battery remaining in the alkali solution during the storage period, resulting in a decrease in the performance of the pole piece

Method used

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  • Method for efficiently and automatically clearing residual alkali solution after formation of zinc-silver battery pole piece
  • Method for efficiently and automatically clearing residual alkali solution after formation of zinc-silver battery pole piece
  • Method for efficiently and automatically clearing residual alkali solution after formation of zinc-silver battery pole piece

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Embodiment Construction

[0023] The system for efficiently and automatically removing residual lye from zinc-silver battery pole pieces of the present invention is shown in image 3 . The specific implementation instructions are as follows:

[0024] The pole piece to be cleaned is suspended in the cleaning basket and placed in the system station 1, the automatic cleaning process is started, the cleaning basket is sent to the station 2 by the chain transmission, and the mechanical arm 8 moves to the station and the cleaning basket is lifted vertically and sent to the station. Station 3 is lowered, and station 3 is equipped with a lateral reciprocating jet injection device to quickly rinse the surface of the suspended pole piece, taking away a large amount of KOH solution on the surface of the pole piece, and then station 3 automatically enters the cleaning solution and starts the configured ultrasonic device 1 (25kHz) for 3 minutes, using the cavitation effect of ultrasound to make the internal pores ...

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Abstract

The invention discloses a method for efficiently and automatically clearing a residual alkali solution inside a pole piece after formation of a zinc-silver battery. While the automatic process is realized, the alkali solution on the surface of the pole piece is taken away by using a fast jet flow, and the diffusion rate of ions around the pole piece is accelerated by using an ultrasonic cavitation effect and direct inflow effect, so that the exudation of the alkali solution inside the pole piece is greatly accelerated, and pressure pulse cleaning is used for strengthening the cleaning effect, therefore, the residual alkali solution inside the pole piece can be lowered by more than 80% to effectively improve the dry storage performances of a battery pack. By adopting the method for efficiently and automatically clearing the residual alkali solution after the formation of the zinc-silver battery pole piece, the automatic production of zinc-silver battery pole piece alkali removing cleaning is realized, and the efficiency and effect of alkali solution removal are improved, furthermore, the service life of battery pack dry storage is effectively prolonged.

Description

technical field [0001] The invention relates to an efficient and automatic method for removing residual lye after formation of zinc-silver battery pole pieces, and the invention is used in the field of post-formation cleaning of zinc-silver battery pole pieces. Background technique [0002] In the manufacturing process of the zinc-silver battery, after the pole piece is formed and charged, the pole piece needs to be cleaned to remove the alkaline electrolyte on the surface of the pole piece and in the internal pores. The purpose of this manufacturing process is to minimize the residual KOH solution inside the pole piece, so as to reduce its corrosion effect on the electrode during the dry storage of the zinc-silver battery. According to domestic zinc-silver battery research work and related literature reports, during the battery dismantling, washing and drying process after formation, there will inevitably be residual alkali and water on the plate. Self-discharge and corros...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/28H01M10/32
CPCH01M10/28H01M10/32Y02E60/10Y02P70/50
Inventor 倪作恒马军王冠吕世银钱晶李克峰
Owner SHANGHAI INST OF SPACE POWER SOURCES
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