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High-capacity battery structure

A large-capacity battery technology, applied to structural parts, secondary batteries, battery pack components, etc., can solve the problems of high production cost, complicated and cumbersome connection steps, and large consumables of the battery box, so as to save materials, reduce costs, The effect of ensuring safety

Pending Publication Date: 2022-04-22
SHAANXI OLYMPUS POWER ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned existing large-capacity batteries connected in series, there are many types of connecting parts, complicated connection steps, large battery box consumables, and high production costs. The present invention proposes a large-capacity battery structure

Method used

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Examples

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Comparison scheme
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Embodiment 1

[0047] see figure 1 , a large-capacity battery structure in this embodiment, which includes a plurality of large-capacity battery units connected in series, the large-capacity battery unit includes a battery cylinder 1, and a positive electrode cover plate 2 is arranged at the opening of one side of the battery cylinder 1, and the The opening on the other side of the battery cylinder 1 is provided with a negative cover plate 3, the positive cover plate 2 is used as the positive pole of the large-capacity battery unit, and the negative cover 3 is used as the negative pole of the large-capacity battery unit; see Figure 5 , a positive electrode connection strip 21 is provided on the side of the positive electrode cover plate 2 away from the inner cavity of the battery cylinder 1, see Figure 6 , on the side of the negative cover plate 3 away from the inner cavity of the battery cylinder 1, a negative electrode connection bar 31 is provided. When multiple large-capacity units are...

Embodiment 2

[0051] This embodiment is a large-capacity battery structure. On the basis of Embodiment 1, the positive cover plate 2 is connected to the positive connecting bar 21 to form a structure with a T-shaped longitudinal section; the negative cover plate 3 is connected to the negative connecting bar 31 to form a longitudinal The cross-section is a T-shaped structure. When multiple large-capacity units are connected in series, the electrical connection between the positive cover plate 2 and the negative cover plate 3 is realized by overlapping the positive electrode connection strip 21 and the negative electrode connection strip 31, which facilitates the connection. The flow area between the positive cover plate 2 and the negative cover plate 3 is also increased.

[0052] see Figure 9 , Preferably, the positive connection bar 21 and the negative connection bar 31 of this embodiment are fixed by screws.

[0053] see figure 2 In this embodiment, a plurality of reinforcing ribs 13 a...

Embodiment 3

[0064] see image 3 , this embodiment is a large-capacity battery structure. On the basis of Embodiment 2, this embodiment also includes one or more battery modules 4, one or more battery modules 4 are placed in the battery cylinder 1, and the battery The positive electrode of the module 4 is electrically connected to the positive cover plate 2, and the negative electrode of the battery module 4 is electrically connected to the negative cover plate 3; The directions are set side by side. see Figure 4 , if there are multiple battery modules 4 , two adjacent battery modules 4 are fixedly connected by connecting pieces 44 .

[0065] It should be noted that the number of multiple battery modules 4 in this embodiment can be 2, 3, 4, 5, or even more, which is specifically set according to the capacity requirement of a single large-capacity battery unit.

[0066] see Figure 7 In this embodiment, the positive electrode of the battery module 4 is electrically connected to the pos...

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Abstract

The invention provides a high-capacity battery structure, and belongs to the technical field of energy storage batteries, the high-capacity battery structure comprises a plurality of high-capacity battery units connected in series, each high-capacity battery unit comprises a battery cylinder, a positive electrode cover plate arranged at an opening in one side of the battery cylinder and a negative electrode cover plate arranged at an opening in the other side of the battery cylinder, the positive electrode cover plate is a positive electrode column, and the negative electrode cover plate is a negative electrode column. The positive electrode cover plate is a positive electrode column, the negative electrode cover plate is a negative electrode column, a positive electrode connecting strip is arranged on one side, far away from the inner cavity of the battery barrel, of the positive electrode cover plate, and a negative electrode connecting strip is arranged on one side, far away from the inner cavity of the battery barrel, of the negative electrode cover plate. And the positive electrode connecting strips corresponding to the positive electrode cover plates and the negative electrode connecting strips corresponding to the negative electrode cover plates of two adjacent battery cylinders are electrically connected. The positive pole and the positive cover plate are integrated, and the negative pole and the negative cover plate are integrated, so that the positive pole and the negative pole are omitted, materials are saved, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of energy storage batteries and relates to the assembly technology of large-capacity batteries, in particular to a large-capacity battery structure. Background technique [0002] As of the end of 2020, among various electrochemical energy storage technologies, the cumulative installed capacity of lithium-ion batteries is the largest, about 2.9GW. [0003] At present, most of the existing large-capacity lithium-ion batteries are formed by connecting multiple small-capacity batteries in parallel to form a large-capacity lithium-ion battery. Satisfying the demand for electricity leads to a wide variety of connection parts, complex and cumbersome connection steps, time-consuming and labor-intensive, and a huge amount of battery management systems, wires, and battery boxes, resulting in high energy storage costs. [0004] For example, the authorized patent No. is CN202259564U, which discloses a high-safety lithi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/48H01M10/613H01M10/615H01M10/655H01M50/204H01M50/24H01M50/289H01M50/30H01M50/507H01M50/543H01M50/609
CPCH01M10/0525H01M10/48H01M10/613H01M10/615H01M10/655H01M50/204H01M50/24H01M50/289H01M50/30H01M50/507H01M50/543H01M50/609Y02E60/10
Inventor 蔡潇雷政军雷玮韩晓宇翟腾飞
Owner SHAANXI OLYMPUS POWER ENERGY CO LTD
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