Lithium ion battery casing, its manufacturing method and battery
A technology of lithium-ion batteries and manufacturing methods, which is applied to the manufacture of electrolyte batteries, secondary batteries, battery pack components, etc., can solve problems such as life-threatening, easy to tear, and safety issues, and achieve safety and yield , Improved safety and yield, high accuracy and safety effects
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[0017] Example 1. A lithium ion battery case, combined figure 1 , Including battery case 1 and high temperature tape 2 as an insulating layer. The high-temperature adhesive tape 2 is arranged on the inner wall of the battery housing near the opening of the battery housing 1 by a pasting method, and the distance between the high-temperature adhesive tape 2 and the cutout 3 of the battery housing is 1 mm.
[0018] When manufacturing a lithium ion battery, the battery cell 4 is placed in the battery case 1. Note that the welding curved surface of the conductive terminal 5 connecting the battery cell 4 and the cover plate 6 corresponds to the insulating layer 2 on the battery case 1, because the curved part of the conductive terminal 5 is the part closest to the inner wall of the battery case 1. Then another conductive terminal 8 is welded to the other side of the cover plate as a positive lead. The conductive terminal 5 and the conductive terminal 8 are insulated from each other at ...
Example Embodiment
[0023] Embodiment two, another lithium ion battery case, combined figure 2 The structure is basically the same as that of the first embodiment, except that an insulating layer is also provided on the inner wall of the housing opposite to the position where the insulating layer is provided in the first embodiment. The insulating layer 7 is formed by coating high temperature resistant insulating glue on the position.
[0024] Comparative analysis:
[0025] The battery case in the second embodiment is used to manufacture finished lithium-ion batteries of the model number 053048A1 according to the conventional process, as three groups, and the method for obtaining the two groups is the same as above. The short-circuit rate of the comparative analysis is shown in Table 2.
[0026] Table 2
[0027]
[0028] It can be seen from Table 1 and Table 2 that the short circuit rate of the lithium ion battery using the battery case of the present invention ...
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