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Battery cell, battery cell assembly method and battery

A cell assembly and cell technology, applied in battery cover/end cover, battery pack components, secondary battery manufacturing, etc., can solve problems such as inability to meet fast charging, low overcurrent capacity of tabs, etc., to ensure charging Speed, improve the effect of flow

Inactive Publication Date: 2022-03-04
SVOLT ENERGY TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this application is to provide a battery cell, a battery cell assembly method and a battery to solve the technical problem in the prior art that the tabs have low overcurrent capacity and cannot meet the requirements of fast charging.

Method used

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  • Battery cell, battery cell assembly method and battery
  • Battery cell, battery cell assembly method and battery
  • Battery cell, battery cell assembly method and battery

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0067] Example 1, the liquid injection part may be disposed on the anode cover plate 220, and the anode top sticker 230 is formed with a gap exposing the liquid injection hole.

example 2

[0068] Example 2, the liquid injection part may be disposed on the cathode cover plate 320, and the cathode top sticker 330 is formed with a gap exposing the liquid injection hole.

example 3

[0069] Example 3, both the anode cover plate 220 and the cathode cover plate 320 are formed with a liquid injection part, similarly, the anode top tab 230 and the cathode top tab 330 may both be formed with a gap exposing the liquid injection hole.

[0070] In addition, similarly, the battery cell can also include an explosion-proof valve, which can be arranged on the anode cover plate 220 and / or the cathode cover plate 320, the anode top sticker 230 and / or the cathode top sticker There are gaps at the positions corresponding to the explosion-proof valves on both sheets 330, and the setting positions of the explosion-proof valves also include three examples, which are similar to the setting of the above-mentioned liquid injection holes and will not be repeated here.

[0071] According to the second aspect of the present application, a battery assembly method is provided, which is used for the assembly of the above-mentioned battery cells, such as figure 2 and image 3 As sho...

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Abstract

The invention relates to the technical field of power batteries, in particular to a battery cell, a battery cell assembly method and a battery, the battery cell comprises a pole group, an anode lug and a cathode lug, the pole group is cuboid, the pole group comprises a first end and a second end which are opposite to each other, the anode lug and the cathode lug are both connected with the pole group, the anode lug is arranged at the first end, and the cathode lug is arranged at the second end. The cathode tab is arranged at the second end. According to the battery cell, the battery cell assembly method and the battery provided by the invention, the anode lug and the cathode lug are respectively arranged at the two ends of the cuboid pole group in the length direction, and larger setting spaces are respectively provided for the anode lug and the cathode lug, so that enough spaces are provided for setting the anode lug and the cathode lug with larger height values of the pole lugs; therefore, the overcurrent of the anode lug and the cathode lug is ensured, and the charging speed of the battery is ensured.

Description

technical field [0001] The present application relates to the technical field of power batteries, in particular to a battery cell, a battery cell assembly method and a battery. Background technique [0002] With the continuous development of power battery technology, the pursuit of battery charging speed continues to increase. However, the tabs of current power batteries (such as prismatic batteries) have low overcurrent capability, which cannot meet the requirements of fast charging. Contents of the invention [0003] The purpose of the present application is to provide a battery cell, a battery cell assembly method and a battery to solve the technical problem existing in the prior art that the tabs have low overcurrent capacity and cannot meet the requirements of fast charging. [0004] According to the first aspect of the present application, there is provided a battery cell, including an electrode group, an anode lug and a cathode lug, the shape of the electrode group...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/531H01M10/04H01M50/147
CPCH01M10/04H01M50/531H01M50/147Y02E60/10Y02P70/50
Inventor 王俊夏天军左帆帆于东朋姬嘉帅宁亚军刘峰娄佳训高顺航
Owner SVOLT ENERGY TECHNOLOGY CO LTD
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