Electrochemical device and manufacturing method
An electrochemical and external body technology, applied in the field of electrochemical devices, can solve problems such as time-consuming and achieve the effect of maintaining strength and correct insulation
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Embodiment 1
[0171] make figure 2The illustrated exterior body 20 is an exterior body in which the terminal portion 7 for conduction is formed at the center of the bottom wall 26 of the concave portion 22, and a laminated exterior battery is produced.
[0172] On the necessary position on the first surface of the metal foil layer 4 of A4 size, after affixing a 3mm×3mm masking tape 40 made of polyester with a thickness of 50 μm as a base material, the adhesive constituting the first adhesive layer 5 is coated. Mixture, and paste the heat-resistant resin layer 2. Since the masking tape 40 is also coated with an adhesive, the masking tape 40 is also bonded to the heat-resistant resin layer 2 . The adhesive constituting the second adhesive layer 6 is coated on the second surface of the metal foil layer 4 , and the thermally adhesive resin layer 3 is attached thereto. Put the above-mentioned laminate in a constant temperature bath set at 40°C for 72 hours to make a laminated exterior materia...
Embodiment 2
[0178] made as Figure 13 The laminated exterior battery 70 is shown. In this laminated exterior battery 70 , the terminal portion 7 for conduction is formed on the side of the cover plate portion 24 of the exterior body 71 from which the tabs 31 , 32 have been drawn. The current-conducting terminal portion 7 is located on the heat-sealed portion 28b at the center of the side of the heat-sealed portion 28b 1 mm inwardly from the end of the surface of the cover portion 24 .
[0179] The laminated exterior battery 70 is assembled with the bare cell 30 after fabricating the exterior body 71 in the same manner as in Example 1, except that the position of the masking tape 40 is changed when manufacturing the laminated exterior material 10 .
[0180] It should be noted that during the extrusion process of the laminated exterior material 10, the terminal portion 7 for current conduction is located near the end of the cover plate portion about 100 mm away from the concave portion 22,...
Embodiment 3
[0182] made as Figure 14 The laminated exterior battery 72 is shown. In this laminated exterior battery 72 , the terminal portion 7 for energization is formed on the flange 23 of the side of the main body portion 21 of the exterior body 71 where the tabs 31 and 32 are not drawn. The above-mentioned terminal portion 7 for conduction is located on the heat-sealed portion 28a at the center of the side of the heat-sealed portion 28a 1mm inwardly from the end of the flange 23 surface.
[0183] The laminated exterior battery 72 is assembled with the bare cell 30 after the exterior body 73 is produced in the same manner as in Example 1 except that the position of the masking tape 40 is changed when the laminated exterior material 10 is produced.
[0184] It should be noted that during the extrusion process of the laminated exterior material 10, the distance between the terminal portion 7 for current conduction 7 and the center of the inner corner of the curved portion of the openin...
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Abstract
Description
Claims
Application Information
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