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Power battery top cover and power battery

A power battery and top cover technology, which is applied in the field of power battery top cover and its power battery, can solve the problems of easy fracture failure, conductive sheet conduction, etc., achieve the effect of less internal space and prevent fracture failure

Active Publication Date: 2016-08-10
JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the conductive sheet integrated with CID is connected to the flip sheet on the top, and the bare cell lug is connected to the bottom. If there are no other parts to assist in fixing, it will easily break and fail during normal assembly and use, or the conductive sheet and the flip sheet or the top will be damaged after deformation. Cover Slip Conduction

Method used

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  • Power battery top cover and power battery
  • Power battery top cover and power battery
  • Power battery top cover and power battery

Examples

Experimental program
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Embodiment Construction

[0045] The present application will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings. The "front", "rear", "left", "right", "upper" and "lower" mentioned in the text are all referred to the top cover of the power battery and the placement state of the power battery in the drawings.

[0046] like figure 1 As shown, the embodiment of the present application provides a power battery top cover, including a top cover sheet 10 , a first electrode unit 20 and a second electrode unit 30 . The top cover sheet 10 is the main structure of the top cover and needs to be made of conductive material, such as aluminum sheet. The top cover sheet 10 is provided with a first connecting portion 100 and a turning sheet connecting hole 101 . The first electrode unit 20 and the second electrode unit 30 are respectively two output poles of the power battery, and each output pole is electrically connected to a pole lug of a bare batt...

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PUM

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Abstract

The invention relates to the technical field of lithium ion battery production, and especially relates to a power battery top cover and a power battery. The power battery top cover comprises a top cover sheet, a first electrode unit and a second electrode unit. An overturning sheet connection hole and an integrally formed first connection part are arranged on the top cover sheet. The first electrode unit comprises an overturning sheet, a conductive sheet and an insulation element. A second connection part and a conductive sheet connection part are arranged on the insulation element. The overturning sheet connection hole is sealed by the overturning sheet. The conductive sheet is located under the overturning sheet and is electrically connected with the overturning sheet. The insulation element is fixed at the lower side of the top cover sheet by matching the first connection part with the second connection part. The conductive sheet is fixed on the top cover sheet by the conductive sheet connection part in an insulated mode. The power battery comprises the power battery top cover. According to the power battery, the conductive sheet can be effectively prevented from breakage, failure or deformation in the using process.

Description

technical field [0001] The present application relates to the technical field of lithium-ion battery production, in particular to a power battery top cover and a power battery thereof. Background technique [0002] For EV hard-shell batteries, in order to solve the overcharge problem, the industry generally adopts a solution to cut off the main circuit of the battery before the battery fails to prevent the battery from continuing to charge to ensure battery safety. [0003] At present, for square hard-shell batteries, some use CID (current interrupt structure). That is, there is an air pressure flip sheet and a conductive sheet integrating CID in the positive main circuit. The surroundings of the conductive sheet are connected with the bare cell lugs by welding, the CID part of the conductive sheet is connected with the flip sheet by welding, and the flip sheet and the positive pole are connected by welding to guide the current to the positive terminal. [0004] When the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/04H01M2/34H01M50/147H01M50/159H01M50/578
CPCH01M50/578H01M50/159H01M10/0525H01M2200/20H01M2220/20Y02E60/10H01M50/15
Inventor 李全坤朱凌波郭剑邓平华王鹏
Owner JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
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