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Battery grouping method and power battery pack

A grouping and battery technology, which is applied in battery pack components, secondary batteries, and secondary battery manufacturing, etc., can solve the problems of occupying the internal space of the battery box, reducing the efficiency of battery grouping, and low battery grouping efficiency, and achieves The effect of improving energy density, improving endurance, and increasing load capacity

Pending Publication Date: 2022-05-13
HUBEI JINQUAN NEW MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing solutions to improve the efficiency of battery packs are to convert the original small modules into large modules to reduce the number of components used in the pack. However, when the battery module is packaged, it is usually necessary to use structural glue to connect the battery to the box. Bonding, at the same time, the battery needs to be confined in the box with the help of end plates and straps. There are many components and occupy the internal space of the battery box, and the grouping process is complicated, thereby reducing the grouping efficiency of the battery.
[0004] Therefore, it is urgent to propose a battery grouping method to solve the above-mentioned problem of low battery grouping efficiency.

Method used

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  • Battery grouping method and power battery pack
  • Battery grouping method and power battery pack
  • Battery grouping method and power battery pack

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Embodiment Construction

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention belongs to the technical field of batteries, and discloses a battery grouping method and a power battery pack. The method comprises the following steps: S1, preparing a battery monomer; s2, electrically connecting a plurality of battery monomers to form a battery pack, and loading the battery pack into a battery box, wherein a first gap is formed between adjacent battery monomers; s3, the battery pack is charged to a preset electric quantity value, the volume of the charged single batteries is expanded, the battery box and the single batteries and the adjacent single batteries abut against each other, extrusion force is generated, and the gap between the battery box and the single batteries and the gap between the adjacent single batteries are zero. According to the method, battery grouping can be realized without adopting structures such as end plates, side plates or bandages and the like and without gluing, the battery grouping efficiency is high, and the preparation cost is low.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery grouping method and a power battery pack. Background technique [0002] With the rapid development of the lithium battery industry, power batteries have been widely used as power sources for electric vehicles, electric bicycles and other tools. In the production and preparation process of power batteries, battery grouping technology has attracted more and more attention from producers. Reducing the process of battery grouping and improving the efficiency of battery grouping are crucial to improving the production efficiency of power batteries. [0003] Most of the existing solutions to improve the efficiency of battery packs are to convert the original small modules into large modules to reduce the number of components used in the pack. However, when the battery module is packaged, it is usually necessary to use structural glue to connect the battery to the box. Bond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04H01M50/249H01M50/244H01M50/209H01M50/264
CPCH01M10/0431H01M50/249H01M50/244H01M50/209H01M50/264H01M10/0525Y02P70/50
Inventor 苑丁丁刘汉祥吕超
Owner HUBEI JINQUAN NEW MATERIALS CO LTD
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