Cylindrical battery and electronic equipment
A cylindrical battery, cylindrical technology, applied in the direction of battery pack parts, circuits, electrical components, etc., can solve the problems of limited welding space, inconvenient welding operation, difficult welding energy control, etc., and achieve high safety effect
Pending Publication Date: 2022-08-09
ENVISION DYNAMICS TECH (JIANGSU) CO LTD +1
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Problems solved by technology
Torque welding or penetration welding is usually used to weld the adapter piece to the pole. Torque welding needs to be welded inside the cell, and the welding space is limited, which is not convenient for welding operations; penetration welding is performed outside the shell, because the pole The thickness of the column is large, the control of welding energy is difficult, and the welding effect is not good
Method used
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[0051] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.
[0052] In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements....
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The invention belongs to the technical field of batteries, and discloses a cylindrical battery and electronic equipment. The cylindrical battery provided by the invention comprises a shell, a pole, an adapter plate and a sealing nail, the shell comprises a cylindrical side wall and an end wall connected with the side wall, and a first through hole is formed in the end wall; the pole comprises a second through hole, and the pole penetrates through the first through hole; the adapter piece is arranged in the shell, the adapter piece comprises a bulge, the bulge extends into the second through hole, and the bulge is fixedly connected with the inner wall of the second through hole; the sealing nail is fixed in the second through hole in a sealed mode. According to the cylindrical battery, the second through hole is formed in the pole, the bulge is arranged on the adapter plate, so that the bulge is fixedly connected with the inner wall of the second through hole, and then the second through hole is sealed by the sealing nail, so that the sealing property of the pole is ensured. The electronic equipment provided by the invention is high in safety by applying the cylindrical battery.
Description
technical field [0001] The invention relates to the technical field of batteries, in particular to a cylindrical battery and electronic equipment. Background technique [0002] With its advantages of high energy density, high safety and low cost, large cylindrical batteries have become one of the important research directions of power batteries for new energy vehicles. For example, the 4680 series of large cylindrical batteries, which are currently mainly used in power batteries, have outstanding safety and economy, do not deform during use, and have an extremely reliable standard system. At present, the large cylindrical battery mainly includes a casing, a battery core, a cover plate and a pole. The first end of the casing is open, and the end face of the second end is provided with a through hole; the battery core is arranged in the casing, and the The first pole tab faces the first end of the casing, and the second pole lug faces the second end of the casing; the negativ...
Claims
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IPC IPC(8): H01M50/528H01M50/503H01M50/516H01M50/559H01M50/179H01M50/184H01M50/186
CPCH01M50/528H01M50/503H01M50/516H01M50/559H01M50/179H01M50/184H01M50/186H01M2220/20Y02P70/50H01M50/152H01M50/56H01M50/566Y02E60/10H01M50/107H01M50/169
Inventor 单雪燕
Owner ENVISION DYNAMICS TECH (JIANGSU) CO LTD