Cover plate component and battery with same

A cover plate and component technology, applied in battery pack parts, circuits, structural parts, etc., can solve the problems of high defect rate and difficult preparation, and achieve the effects of high yield, easy cleaning and lower production costs

Active Publication Date: 2013-10-30
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical problems of difficult preparation and high defect rate of the existing cover assembly using ceramics as the seal

Method used

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  • Cover plate component and battery with same
  • Cover plate component and battery with same
  • Cover plate component and battery with same

Examples

Experimental program
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Effect test

Embodiment

[0041] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Herein, the same reference numerals denote the same constituents. Moreover, it should be understood that in the description of the present invention, relative orientation terms such as "upper" and "lower" indicate that each component and its components in the cover assembly are figure 1 The relative position in the cross-sectional view of the cover plate assembly is shown to facilitate the description of the components and their components; but it is not used to limit the actual installation and positional relationship of these components and their components in the lithium-ion battery. It may be different from the actual installation and is not intended to limit the scope of the present invention.

[0042] The cover plate assembly of the present invention is used for the sealing of batteries, more commonly used for the sealing of lithium-ion bat...

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Abstract

The invention provides a cover plate component and a battery with the same. The cover plate component comprises a cover plate body, a cover plate connecting element and an electrode terminal, wherein the cover plate connecting element is provided with an electrode hole which runs through the cover plate connecting element; the electrode terminal passes through the electrode hole and then is in insulation sealing with the cover plate connecting element; the cover plate body is provided with through holed running through the cover plate body; the electrode terminal passes through the through hole and leads current out; the cover plate connecting element and the cover plate body are connected in a seal mode. Through the technical scheme provided by the invention, the production efficiency can be improved, the manufacturing cost can be lowered, especially, the yield is high, and the safety performance is good; meanwhile, the cover plate component provided by the invention is stable in structure connection, has good seal performance, and lays a foundation for the actual application and development of ceramic seal batteries.

Description

technical field [0001] The invention relates to a cover plate assembly and a battery containing the cover plate assembly. Background technique [0002] Lithium-ion battery is an important product of new energy, which has the advantages of no pollution, high capacity and long cycle life. At present, lithium-ion power batteries, lithium-ion tool batteries, network energy and other fields. Lithium-ion batteries are made by winding or stacking the positive electrode sheet, diaphragm, and negative electrode sheet into the core, then putting the core into the cavity formed by the battery case and the sealed cover plate, injecting the electrolyte into the inside, and then sealing and forming. get. The sealing cover is an indispensable component of the lithium battery seal, and its safety, sealing, aging resistance, insulation, and the size of the space occupied in the battery are of great significance. In addition, the cover assembly occupies the entire A certain cost of lithium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/04H01M2/08H01M2/30H01M50/147H01M50/188H01M50/543
CPCY02E60/12Y02E60/10
Inventor 邓奇思汪鲁建何昱臣吴强
Owner BYD CO LTD
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