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Connection structure of cell polar ear and cover plate

A connection structure and electrical connection technology, applied in the direction of electrical connector introduction, structural parts, battery cover/end cover, etc., can solve the problems of battery safety and performance impact, battery performance, metal particle splashing, etc., to overcome welding Effects of adverse effects, elimination of influence, and increase of contact area

Active Publication Date: 2013-01-16
ZHENGZHOU BAK BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the production of batteries, this method is complicated to operate, especially the splash of metal particles is easy to be generated during fusion welding, which has a great impact on the safety and performance of the battery cell, and the interpenetration welding will also be caused by mechanical vibration and inconvenient operation. The connection between the tab and the plate is strained and affects the performance of the battery

Method used

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  • Connection structure of cell polar ear and cover plate
  • Connection structure of cell polar ear and cover plate
  • Connection structure of cell polar ear and cover plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] a battery such as figure 1 , figure 2 and image 3 As shown, it includes a cover plate 1 , a stretchable conductor 2 , a staple 3 , an elastic pressing piece 4 , an elastic conductive ring 5 , an insulating spacer 6 , a battery cell 8 and a battery case 9 . There are tabs 7 protruding from the end of the battery core 8 , including positive tabs and negative tabs, which are respectively located at the two ends of the battery core 8 .

[0029] The overall shape of the electric core 8 is cylindrical, and it is housed in a circular shell 9 .

[0030] The shape of the outer peripheral wall of the insulating spacer 6 matches the inner cavity of the battery casing 9 , and its bottom surface is placed on the end surface of the battery cell 8 . Holes 601 are provided on the insulating spacer 6 so that the tabs 7 of the battery core can pass through and extend from the bottom surface to the other surface.

[0031] An elastic conductive ring 5 is stacked on the insulating spa...

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PUM

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Abstract

A connection structure for connecting a tab (7) of a cell with a cover board (1) comprising a tab (7) and a cover board (1) is provided. An insulating spacer (6) and an elastic conductive ring (5) are provided at an end of the cell (8). The tab passes through an orifice of the insulting spacer (6) and then is electrically connected with the elastic conductive ring (5) which is electrically connected with the cover board (1). An elastic pressing disc (4) may be further provided on the elastic conductive ring (5). The elastic conductive ring (5) is electrically connected with the cover board (1) via the elastic pressing disc (4). A staple (3) may be further provided on the elastic pressing disc (4) and the elastic conductive ring (5). The staple (3) has a slot (302) on one end for matching with an elastic hook (603) provided on the insulating spacer (6).

Description

technical field [0001] The invention relates to a battery structure, in particular to a connection structure between tabs of a battery cell and a cover plate. Background technique [0002] A lithium-ion secondary battery consists of a negative plate, a positive plate, an electrolyte, and a separator interposed between the positive and negative plates to prevent short circuits. The positive plate and the negative plate are made into thin plates or foils, and then the electrode plates and the intervening separator are stacked in sequence or spirally wound to form a battery core, and then the battery core is filled with stainless steel, nickel-plated iron, and aluminum metal Electrolyte is poured into the casing or laminated flexible film battery container, and sealed to form a battery. Wherein, the electrical conduction between the battery core and the outside world is realized through the connection between the lug connected to the pole plate and the pole or the cover plate....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/06H01M2/20H01M50/529H01M50/172H01M50/516H01M50/531H01M50/567
CPCY02E60/12H01M2/30Y02E60/10H01M50/567H01M50/531H01M50/543H01M50/147
Inventor 郭春泰刘方朱礼仁
Owner ZHENGZHOU BAK BATTERY CO LTD