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Composite conducting strip for realizing series connection and parallel connection of cylindrical single batteries

A cylindrical battery and composite conductive technology, applied in the field of conductive sheets, can solve problems such as hidden dangers in quality and safety, and achieve the effects of low cost, convenient battery installation and removal, and fast processing

Pending Publication Date: 2020-05-19
王怀云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a new composite conductive sheet (hereinafter referred to as the composite conductive sheet) that realizes the series and parallel connection of cylindrical cells, which solves many problems of the existing technology, such as potential quality and safety hazards, and also It will not be limited by battery diameter, manufacturing process and material elongation. It can provide a variety of cylindrical single battery connection structures in series and parallel, and can adapt to various process requirements for battery electrode welding and non-welding. The processing technology of composite conductive sheets simple and low cost

Method used

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  • Composite conducting strip for realizing series connection and parallel connection of cylindrical single batteries
  • Composite conducting strip for realizing series connection and parallel connection of cylindrical single batteries
  • Composite conducting strip for realizing series connection and parallel connection of cylindrical single batteries

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Experimental program
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specific Embodiment approach 1

[0020] Attached below Figure 1-5 The present invention adopts the implementation example of the combination of welding conductive sheet attached body to form a battery pack to further illustrate:

[0021] The main body (1) of the conductive sheet is stamped, drawn and bent by 0.2mm thick stainless steel plate, and there are frames (1-1) around it, and there are 16 deep-drawn round holes for installing batteries (3) on the plane of the main conductive sheet (1-2), there are 4 radial shrapnels (1-3) around each deep-drawing hole that are interference fit with the diameter of the battery, and there are 2 radial shrapnel (1-3) around the deep-drawing hole that have a gap with the diameter of the battery Cooperating L-shaped connecting pieces (1-4). The welding conductive sheet (2) is stamped and deep-drawn by a 0.2mm thick stainless steel plate. There is a welding platform (2-1) in the middle of the welding conductive sheet, and there are 2 flanks (2-2) around the welding conduc...

specific Embodiment approach 2

[0024] Attached below figure 1 And attached Figure 6-8 The embodiment that the present invention adopts the combination of the end surface elastic sheet conductive sheet attachment to form a battery pack is further described:

Embodiment approach 2

[0025] Embodiment 2 is based on Embodiment 1, and the battery pack is assembled by replacing the soldered conductive sheet attachment with the elastic conductive sheet attachment on the end surface. For the same part, refer to Embodiment 1.

[0026] The conductive piece (5) of the end surface shrapnel is formed by stamping and deep drawing of a 0.2mm thick phosphor bronze plate. There are 4 convex and concave shrapnel pieces (5-1) in the center of the conductive piece of the end surface convex and concave shrapnel. The distance between the cap electrode (3-2) and the upper battery steel shell electrode (3-1) can realize the connection of two upper and lower batteries in series under non-welding conditions.

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Abstract

The invention provides a novel composite conducting strip for realizing series connection and parallel connection of cylindrical single batteries. The composite conducting strip comprises a conductingstrip main body, a conducting strip appendage and the like, the conducting strip main body is formed by stretching and bending a metal sheet; a frame is arranged on the periphery of the conducting strip body, a plurality of stretching round holes in clearance fit with the diameter of a battery are formed in the plane of the conducting strip body, a plurality of radial elastic pieces in interference fit with the diameter of the battery are arranged on the periphery of the stretching round holes, and a plurality of L-shaped connecting pieces in clearance fit with the diameter of the battery arefurther arranged on the periphery of the stretching round holes. The conducting strip appendage can be processed into a welding conducting strip and an end surface elastic sheet conducting strip according to process requirements; the cylindrical single batteries can be connected in series and in parallel to form various cylindrical single battery series and parallel connection structures, the battery steel shell electrodes do not need to be welded, the requirements of battery cap electrode welding and non-welding can be met, the batteries are very convenient to mount and dismount, and batterypack maintenance and battery reutilization are facilitated.

Description

technical field [0001] The invention relates to a series-connected and parallel-connected conductive sheet of a battery pack, and is particularly suitable for a composite conductive sheet for realizing the series-connected and parallel-connected cylindrical batteries. Background technique [0002] The battery pack usually needs to be realized by connecting multiple single cells in series and in parallel. The series and parallel connection of batteries not only affects the assembly efficiency of the battery pack, but also affects the main technical performance, service life and safety of the battery pack. . At present, the series and parallel connections of batteries usually use metal strips to weld the positive and negative electrodes of the single cells of the parallel battery pack together. Potential quality and safety hazards, low production efficiency, battery packs after welding cannot be disassembled, battery pack maintenance and battery cascade utilization cannot be ...

Claims

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Application Information

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IPC IPC(8): H01M2/20H01M50/502H01M50/514H01M50/521
CPCH01M50/502Y02E60/10
Inventor 王怀云
Owner 王怀云