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Combined battery pack and assembly method thereof

An assembly method and battery pack technology, which are applied in the direction of assembling battery machines, battery pack components, and isolation of batteries from their environment, etc., can solve the problem of low battery stability, achieve a simple and fast assembly process, improve assembly efficiency, and ensure stable performance. Effect

Pending Publication Date: 2021-07-23
蜻蜓实验室(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the new energy combined lithium battery of this invention uses a fixed spring and a splint to fix the battery body. Because the spring is elastic, when the combined battery is hit by an external force, the battery body may shake in the storage box, and the stability of the battery is not high.

Method used

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  • Combined battery pack and assembly method thereof
  • Combined battery pack and assembly method thereof
  • Combined battery pack and assembly method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a combined battery pack, such as figure 1 It is a schematic top view structure diagram of the combined battery pack according to Embodiment 1 of the invention, figure 2 It is a schematic diagram of the front section structure of the combined battery pack according to the first embodiment of the present invention. refer to figure 1 with figure 2 , The combined battery pack of the present invention includes a plastic casing 1 , and at least two inner cavities 10 are arranged inside the plastic casing 1 . A battery cell 5 is installed inside each cavity 10 , and a cover plate 4 is sealed and fixed at the top opening of each cavity 10 . At least one positive pole 40 and one negative pole 41 are arranged on each cover plate 4, and each battery cell 5 is connected with one positive pole 40 and one negative pole 41, and the positive pole 40 on the cover plate 4 is connected ...

Embodiment 2

[0073] The invention provides a combined battery pack, such as Figure 5 as shown, Figure 5 It is a schematic plan view of the combined battery pack according to the second embodiment of the present invention; it includes a plastic casing 1, and six inner cavities 10 are arranged inside the plastic casing 1, and a battery cell 5 is installed inside each inner cavity 10 (Fig. not shown), the number of cover plates 4 is three, and each cover plate 4 covers two adjacent inner cavities 10, and each cover plate 4 is provided with two positive poles 40 and two negative poles 41. Each cover plate 4 is connected to its two battery cells. Each battery cell is connected to a positive pole 40 and a negative pole 41 , specifically, a positive pole 40 and a negative pole 41 are provided on the cover plate 4 directly above each inner cavity 10 . The connection between the battery cell (not shown in the figure) and the positive pole in the inner cavity 10, the connection method between th...

Embodiment 3

[0076] The invention provides a combined battery pack, such as Figure 7 as shown, Figure 7It is a schematic top view structure diagram of the combined battery pack according to the third embodiment of the present invention, which includes a plastic casing 1 and six inner cavities 10 are arranged inside the plastic casing 1 . The top openings of the six inner cavities 10 are jointly sealed and fixed with a cover plate 4, and six positive poles 40 and six negative poles 41 are arranged on the cover plate 4. The positive poles 40 on the cover plate 4 are connected in series with the adjacent negative poles 41 through the third connecting piece 42 .

[0077] Such as Figure 8 as shown, Figure 8 It is a schematic diagram of the front section structure of the combined battery pack according to Embodiment 3 of the present invention; a battery cell 5 is installed inside each cavity 10, and each battery cell 5 is connected to a positive pole 40 and a negative pole 41 Specificall...

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Abstract

The invention provides a combined battery pack and an assembly method thereof. The combined battery pack comprises a plastic shell and at least one cover plate, the plastic shell is internally provided with at least two inner cavities, each inner cavity is internally provided with a battery monomer, the cover plate is fixed at an opening at the top end of the inner cavity, and the cover plate is provided with a plurality of positive poles and a plurality of negative poles; and each battery monomer is connected with one positive pole and one negative pole, and adjacent battery monomers are connected in series. According to the invention, the plastic shell is used as the shell of the battery pack so that the cost of the combined battery pack is reduced, the stability of the battery is ensured, the battery monomers are fixed more firmly, the structure is simple, the processing cost is low, and the assembly efficiency of the battery pack is improved. The assembly method comprises the following steps: connecting an electrode leading-out end of a pole core of the battery monomer with a cover plate; injecting an electrolyte into the inner cavity, inserting the pole core into the inner cavity, and covering an opening of the inner cavity with the cover plate; connecting the positive pole with the adjacent negative pole in series; and sealing the cover plate and the plastic shell.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a combined battery pack and an assembly method thereof. Background technique [0002] Lithium-ion batteries have the advantages of high working voltage, high energy density, long cycle life, and no memory effect. Lithium-ion batteries have become the main power source of various portable electronic products. With the further promotion of new energy industries such as energy storage batteries, the demand for power and energy storage lithium-ion batteries will increase significantly. [0003] With the development of new energy vehicles and energy storage markets, in current applications, lithium-ion batteries are basically connected in series and parallel. The existing traditional battery shell materials are still mainly aluminum shells, steel shells or aluminum-plastic films, and basically all appear in the form of monomers (the most basic elements that make up battery packs an...

Claims

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Application Information

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IPC IPC(8): H01M10/04H01M50/51H01M50/24
CPCH01M10/0404Y02P70/50
Inventor 王爱萍
Owner 蜻蜓实验室(深圳)有限公司
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