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Battery cell assembly, battery module and battery system

A battery module and battery system technology, applied to battery components, electrical components, circuits, etc., can solve the problems of low battery module utilization and volume utilization

Pending Publication Date: 2022-03-25
EVERGRANDE NEW ENERGY TECH SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a battery cell assembly to solve the technical problem that the existing battery module has a low utilization rate in the length direction, resulting in a low volume utilization rate.

Method used

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  • Battery cell assembly, battery module and battery system
  • Battery cell assembly, battery module and battery system
  • Battery cell assembly, battery module and battery system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] see figure 1 , figure 2 , the embodiment of the present invention provides a cell assembly 100 , including two cell units 110 , two cell units 110 and at least one insulating support 130 . Among them, the two cell units 110 are arranged in an array along its thickness direction, and the two ends of the cell unit 110 in the length direction are connected with sealing edges 111; the support plate 120 is arranged between the two cell units 110, and is connected The unit 110 is fixedly connected; the insulating bracket 130 includes a main body 131 fixedly connected to the end of the support plate 120 and arranged between the sealing edges 111 of the two cell units 110, the main body 131 is provided with a fixing hole 1311, and the extension direction of the fixing hole 1311 perpendicular to the length direction of the cell unit 110 .

[0068] It should be noted here that, in the cell assembly 100 provided in this embodiment, the opposite sides of the two cell units 110 a...

Embodiment 2

[0120] The difference between this embodiment and Embodiment 1 is:

[0121] see Figure 9 , Figure 10 , in this embodiment, the cell assembly 100 further includes an electrical connector 140 fixedly connected to the side of the vertical plate 132 away from the support plate 120 , and an electrical connector 140 arranged on the horizontal plate 133 and vertically connected to one end of the electrical connector 140 The confluence part 150 is provided with a confluence hole 151 which is arranged through and aligned with the fixing hole 1311 .

[0122] It should be noted here that, in this embodiment, after one end of the two cell units 110 of the cell assembly 100 is fixed to the support plate 120, the lugs at the ends can be welded to the electrical connector 140 first. , so as to realize the power connection of the two battery cells 110 at the end. Subsequently, the electricity of the two battery cells 110 can be conducted to the bus 150 integrally connected with the elect...

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Abstract

The invention relates to the field of batteries, and provides a battery cell assembly, a battery module and a battery system. The battery cell assembly comprises two battery cell units, a supporting plate and an insulating support, the two battery cell units are arranged in an array mode in the thickness direction, and the two ends, in the length direction, of each battery cell unit are connected with sealing edges; the supporting plate is arranged between the two battery cell units and is fixedly connected with the two battery cell units; the insulating bracket comprises a main body which is fixedly connected to the end part of the supporting plate and is arranged between the sealing edges of the two battery cell units, a fixing hole is formed in the main body, and the extending direction of the fixing hole is vertical to the length direction of the battery cell units. Based on the structure, the end part of the battery cell assembly can be directly fixed through the fixing hole, and the main body can share a space with the sealing edge in the length direction of the battery cell assembly without additionally increasing the size of the battery cell assembly in the length direction, so that the ratio of the length of the battery cell unit to the length of the battery cell assembly is favorably increased; and the utilization rate of the battery cell assembly in the length direction is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a battery cell assembly, a battery module and a battery system. Background technique [0002] A battery module usually includes a plurality of battery cells and structural components such as end plates, side plates, bottom plates, and cover plates for fixing each battery cell unit. Based on the VDA standard (German automotive industry quality standard), the length of the battery module in the form of a soft package generally has three specifications: 355mm, 390mm, and 590mm. Since the fixed structural parts will occupy more space in the length direction, the battery module The length of the battery unit is usually 308mm, 354mm, and 545mm, that is, the utilization rate of the battery module in the length direction is 86.7%, 90.7%, and 92.3%. Therefore, the utilization rate of the traditional battery module is low at least in the length direction, resulting in a low ...

Claims

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Application Information

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IPC IPC(8): H01M50/209H01M50/258H01M50/244H01M50/242H01M50/298H01M50/287H01M50/519H02G3/34
CPCH02G3/34Y02E60/10
Inventor 何标
Owner EVERGRANDE NEW ENERGY TECH SHENZHEN CO LTD
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