进一步分析确认不良原因：1、产品经过初步分析后，确认产品为电池折边不良

Further analysis confirmed that bad reasons: <br>1, the product after a preliminary analysis, confirm that the product is defective battery hem cause, so we will return the product Kinsale battery supplier for further confirmation, confirm that the battery is bad reason: battery hem damaged . <br>2, the hemming cause cell damage, Kinsale reply follows: <br>. A solid plant cell detecting step conditioner using two encapsulates transfer machine operation, thus detecting this eyepiece branched reservation failure batteries two Edge the pitch of the effective area is small, too close to the cell body, resulting in no retention an extensible plastic film packaging space, resulting in an aluminum layer when the packaging operation plastic film defective cell housing crack damage. In view of the eye is no way to identify the full inspection, so leading to poor hemming step into the next step. <br>b. batteries during cutting, folding, hemming machine Trinity after hot working, trimming batteries plastic film is folded up, folding close to the cell body, and then the appearance of the whole inspection process thus no way to check Edge appearance. <br>c. When the plastic film is an aluminum layer cell housing, the inner layer of hot-melt layer CPP fracture, failure of sealing batteries, and therefore can not block the water molecules in the air to penetrate internal batteries, lithium SOLUTIONS inner core hexafluorophosphate the reaction solution was made acidic water solution, the aluminum layer in direct contact with the plastic film, causing corrosion of the aluminum layer is decomposed, the electrical performance of the core fail. This bad for individual product mixing probability conditioners bad circulation, so the other normal product ease of use.

Further analysis identifies the cause of the adverse effects:<br>1, the product after a preliminary analysis, confirmed that the product is the battery folding bad cause, so we will send the product back to the battery supplier Kinsell for further confirmation, confirm that the cause of the battery is: battery folding break.<br>2, cause the battery fold break the cause, Kinsel replied as follows:<br>a. Detection workshop two-seal process transfer machine using the solid core for encapsulation transfer operation, so use a bibliography to detect this bad core two-seal edge reserved effective area spacing is small, too close to the main body of the core, resulting in the packaging of aluminum film did not retain extension space, resulting in packaging operation when the core shell aluminum film aluminum layer cracking damage. In view of the naked eye can not fully identify, so that bad flow into the next process folding process.<br>b. After the electro-core is cut, folded, hot tri-integrated machine to fold the edge operation, the core cutting edge aluminum film is folded up, the folding edge is close to the core body, so there is no way to check the appearance of the sealing process.<br>c. When the aluminum layer in the aluminum film of the electric core shell, the inner hot melt layer CPP layer breaks, the sealing of the core fails, so it is impossible to block the penetration of air water molecules into the core, the internal hefluorophosphate electrolyte of the core reacts into an acidic solution, directly contacts the aluminum layer in the aluminum film, causing the aluminum layer decomposition corrosion, the core performance failure. This bad for the individual probability of adjusting the bad products mixed flow, so other normal products please rest assured to use.

Further analyze and confirm the cause of the defect:<br>1. After preliminary analysis, it is confirmed that the product is caused by poor battery hemming, so we will send the product back to the battery supplier Kinsell for further confirmation, and confirm that the cause of poor battery is: broken battery hemming.<br>2. The reason for the damage of battery hem is as follows:<br>a. The solid electric core used in the second sealing process of the testing workshop is used for the sealing and adjusting operation. Therefore, the effective area space reserved for the second sealing edge of the defective electric core is too small, which is too close to the main body of the electric core. As a result, the aluminum layer in the aluminum plastic film of the electric core shell is pulled and damaged during the sealing operation. In view of the unavailability of full inspection and identification by naked eyes, the defective parts will flow into the next folding process.<br>b. After the cutting, folding and ironing operation of the electric core, the cutting aluminum plastic film of the electric core is folded, and the folding edge is close to the main body of the electric core, so there is no way to check the appearance of the edge sealing in the overall appearance inspection process.<br>c. When the aluminum layer and the CPP layer of the inner hot melt layer in the aluminum-plastic film of the electric core shell break, the sealing performance of the electric core fails, so it is impossible to block the air water molecules penetrating into the inner part of the electric core. The lithium hexafluorophosphate electrolyte in the electric core reacts with water to form an acid solution, which directly contacts the aluminum layer in the aluminum-plastic film, causing the decomposition corrosion of the aluminum layer and the failure of the performance of the electric core. This defect is the mixed material circulation of some bad products with probability adjustment, so please rest assured to use other normal products.