Cleaning method of steel shell of lithium battery
A lithium battery and steel shell technology, applied in the field of lithium battery steel shell cleaning, can solve problems such as difficult to clean, long CT time, affecting use, etc., to achieve the effect of clean steel shell appearance, simplified process, and improved production efficiency
Pending Publication Date: 2021-09-10
苏州橙柳电子精密有限公司
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Problems solved by technology
In the prior art, hydrocarbon cleaning agents are generally used, and after hydrocarbon rough cleaning and degreasing (100-200s), hydrocarbon fine cleaning and degreasing (100-200s) and hydrocarbon bath washing (150-200s), then drying is carried out. The CT time of this method process is long, the process is c
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[0023] A cleaning method for a lithium battery steel case mainly comprises the following steps:
[0024] Place the steel shell in the vacuum cleaning chamber, use modified alcohol cleaning agent to clean and degrease, and the steel shell rotates clockwise during the cleaning process;
[0025] Place the mouth of the steel shell up and stand still, use modified alcohol cleaning agent to wash in the opposite direction to the mouth of the steel shell, place the bottom of the steel shell upward and stand still, use modified alcohol cleaning agent to rinse the bottom of the steel shell, the washing speed is 38~60m 3 / h;
[0026] The rinsed steel shell is dried.
[0027] The cleaning and degreasing time of the modified alcohol in this embodiment is 150-300s, the temperature of the modified alcohol cleaning and degreasing is 80-90°C, and the vacuum degree is 80-85Kpa. Under this condition, the ability to remove oil stains is the best Strong, and compared with the existing hydrocarb...
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The invention discloses a cleaning method of a steel shell of a lithium battery. The method mainly comprises the following steps: performing one-time cleaning and oil removal by using a modified alcohol cleaning agent, flushing the outer bottom and the inner bottom of the steel shell at a high speed, and drying the flushed steel shell. According to the cleaning method, the three-step hydrocarbon cleaning and oil removal are optimized, so that not only can a better cleaning and oil removal effect be obtained, but also the process is simplified, the CT time is greatly shortened, and the production efficiency is remarkably improved. A high-speed flushing process is adopted, black ring-shaped dirt at the inner bottom and yellow spot-shaped stains at the outer bottom are efficiently removed, the appearance of the steel shell is cleaner, and the percent of pass is remarkably increased. According to the method, all the procedures are in a vacuum environment, impurity pollution is avoided, and meanwhile harmful gas volatilization is avoided.
Description
technical field [0001] The invention belongs to the technical field of battery steel shell cleaning, and more particularly relates to a cleaning method for lithium battery steel shells. Background technique [0002] Existing lithium batteries are all wrapped with cylindrical steel shells outside the battery inner core, and the battery steel shells need to be cleaned before use. In the prior art, hydrocarbon cleaning agents are generally used, and after hydrocarbon rough cleaning and degreasing (100-200s), hydrocarbon fine cleaning and degreasing (100-200s) and hydrocarbon bath washing (150-200s), then drying is carried out. The CT time of the process of this method is long, the process is cumbersome, the efficiency is low, and the energy consumption is high. Moreover, macular-like stains on the outer bottom of the steel shell and black circles on the inner bottom are common chronic problems in this field. It is difficult to remove them with existing cleaning techniques, whi...
Claims
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Login to View More IPC IPC(8): B08B9/093C23G5/032H01M50/691H01M10/0525H01M50/224
CPCB08B9/093C23G5/032H01M50/691H01M10/0525H01M50/224Y02E60/10
Inventor 邵伟刘锡军陈忠林有余
Owner 苏州橙柳电子精密有限公司