A method for detecting damage to soft-pack lithium batteries
A soft-pack lithium battery and lithium battery technology, applied in sorting and other directions, can solve problems affecting product quality, etc., and achieve the effects of improving quality stability, improving detection efficiency, and reducing detection costs.
Active Publication Date: 2019-01-25
ZHEJIANG CHAOWEI CHUANGYUAN INDUSTRAIAL
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[0003] The purpose of the present invention is to provide a method for detecting damage to soft-pack lithium batteries, which can effectively Reducing misjudgments and missed judgments in lithium battery damage detection is conducive to improving the quality stability of lithium batteries, improving detection efficiency, and reducing detection costs
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[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0023] Such as figure 1 Shown, a kind of method for detecting the damage of soft pack lithium battery comprises the steps:
[0024] a. The inspectors first conduct a preliminary inspection of the lithium battery, pick out the severely damaged lithium battery with electrolyte leakage, and paste the unqualified product mark, and then put it into the unqualified product area. For lithium batteries with no obvious signs of damage Batteries are included in the area to be tested. It should be noted that since the detection in step a is only a preliminary distinction, the purpose is to pick out the damaged lithium batteries that can be confirmed with certainty, so as to reduce the workload of subsequent detection procedures. Damaged lithium batteries can be included in the area to be tested as much as possible for subsequent testing to avoid misjudg...
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The invention discloses a breakage detection method for soft-packing lithium batteries. The breakage detection method comprises the following steps: a, lithium batteries are primarily detected by detection personnel, badly broken lithium batteries with electrolyte leakage are picked out, labeled with unqualified product marks and delivered to an unqualified product area, and lithium batteries with no obvious breakage signs are delivered to a detection waiting area; b, the lithium batteries in the detection waiting area are placed in a sealable detection box in a temperature and humidity constant status, the temperature of the detection box is controlled within 55-65 DEG C, the relative humidity is controlled within 93%-97% DEG C; c, after 46-50 hours, the lithium batteries are taken out of the detection box for observation, lithium batteries with the bulging problem are labeled with unqualified product marks and delivered to the unqualified product area, and the rest of lithium batteries are delivered to a qualified product area. According to the breakage detection method for soft-packing lithium batteries, false and missed judgment during lithium battery breakage detection is effectively reduced, the quality stability of lithium batteries is improved, the detection efficiency is improved, and the detection cost is reduced.
Description
technical field [0001] The invention relates to the technical field of aluminum-plastic film soft-pack batteries, in particular to a method suitable for detecting damage to soft-pack lithium batteries during the production process of soft-pack batteries. Background technique [0002] The proportion of aluminum-plastic film soft-pack batteries in power batteries is getting higher and higher. The packaging of soft-pack batteries is usually completed by using a packaging machine to heat-press the opening of the aluminum-plastic film packaging bag. For example, a kind of The "Packaging Device for Lithium Battery Aluminum-Plastic Film" disclosed in the patent literature has a notification number of CN205376586U, which includes a fixing part and a pressing part arranged on the fixing part. The top surface of the press-fit part is a press-fit surface in contact with the aluminum-plastic film, and the press-fit surface is provided with a number of holes arranged at intervals and pas...
Claims
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IPC IPC(8): B07C5/34B07C5/36B07C5/02
CPCB07C5/02B07C5/34B07C5/36
Inventor 梁水塘任宁吴耀辉孙延先樊海英
Owner ZHEJIANG CHAOWEI CHUANGYUAN INDUSTRAIAL