Full-tab top cover assembly and full-tab battery

An all-pole ear and top cover technology, applied in battery pack parts, circuits, structural parts, etc., can solve problems such as poor battery performance and shaking, and achieve high assembly process accuracy, fast positioning, and excellent battery performance. Effect

Pending Publication Date: 2022-05-17
昆山聚创新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the present invention proposes a full-tab top cover assembly, which is fast and convenient to assemble, and solves the problem in the related art that shaking easily occurs during assembly and leads to poor battery performance after assembly.

Method used

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  • Full-tab top cover assembly and full-tab battery
  • Full-tab top cover assembly and full-tab battery
  • Full-tab top cover assembly and full-tab battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0119] A full tab top cover assembly 100, such as figure 1 As shown, it includes: a top cover sheet 1 , a lower plastic sheet 2 , a first connecting sheet 3 and a second connecting sheet 4 .

[0120] Among them, such as figure 1 and figure 2 As shown, the lower plastic 2 fits on the bottom of the top cover sheet 1 .

[0121] like figure 2 As shown, the bottom of the lower plastic 2 is provided with a first groove 21 and a second groove 22 that are concave upward toward the direction of the top cover sheet 1, and the first groove 21 and the second groove 22 are respectively arranged on the lower plastic 2 at intervals. sides in the long direction. Continue to refer to figure 2 As shown, the first groove 21 has a first locking groove 23 on the groove wall of the side away from the second groove 22, and the first locking groove 23 communicates with the first groove 21; the second groove 22 is far away from the first groove. A second locking groove 24 is formed on one sid...

Embodiment 2

[0125] An all-tab battery 1000, comprising: two battery cells 200, a housing 300 and a full-tab top cover assembly 100, wherein the assembled all-tab battery 1000 can refer to Figure 6 shown.

[0126] like Figure 7 As shown, two battery cells 200 are housed in the casing 300 .

[0127] like Figure 7 and Figure 9 As shown, pole pieces of different polarities of the battery cell 200 protrude from both sides of the battery core 200, and some areas of the protruding pole piece are not coated with a coating, and the uncoated area protruding from the negative pole piece is formed as The first connecting portion 210 and the uncoated area protruding from the positive electrode tab are formed as the second connecting portion 220 .

[0128] like Figure 7 and Figure 8 As shown, the full-tab top cover assembly 100 is the full-tab top cover assembly 100 in Embodiment 1, as Figure 6 As shown, the full tab top cover assembly 100 is covered on the shell 300, as Figure 8 As sho...

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Abstract

The invention discloses a full-tab top cover assembly and a full-tab battery. The full-tab top cover assembly comprises a top cover sheet, lower plastic, a first connecting sheet and a second connecting sheet, the lower plastic is matched with the bottom of the top cover piece, and a first groove and a second groove which are concave upwards and arranged at intervals are formed in the bottom of the lower plastic in the direction facing the top cover piece. A first clamping groove is formed in the groove wall of the side, away from the second groove, of the first groove, and the first clamping groove communicates with the first groove. A second clamping groove is formed in the groove wall of the side, away from the first groove, of the second groove, and the second clamping groove communicates with the second groove. The first assembling part on the first connecting piece is clamped in the first groove, and the first transition part is clamped in the first clamping groove. The second assembling part of the second connecting piece is clamped in the second groove, and the second transition part is clamped in the second clamping groove. The pins on the two connecting pieces extend out in the direction away from the top cover piece. The full-tab top cover assembly provided by the embodiment of the invention is rapid in assembly and positioning, high in efficiency and accurate in pin orientation after assembly.

Description

technical field [0001] The invention belongs to the technical field of power batteries, in particular to an all-tab top cover assembly and an all-tab battery. Background technique [0002] Assembling and manufacturing lithium-ion batteries with excellent performance is a key step in the development of new energy vehicles. [0003] Lithium-ion batteries usually have a laminated type and a wound type. The tabs of the wound lithium battery are divided into two types, one is the heterogeneous tab connected to the positive and negative electrodes, and the other is the positive and negative electrodes. There is an uncoated area on the side of the base body of the battery. After the pole piece is wound, this area is directly welded to the conductive connecting piece on the top cover to form an all-tab battery. [0004] However, due to the large number of structural parts that make up the top cover, the assembly process is relatively slow, especially for the full tab top cover with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/15H01M50/528
Inventor 胡中良刘宏陈晓兵谢世平
Owner 昆山聚创新能源科技有限公司
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