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Pole rod washer and power battery cover plate

A gasket and pole technology, used in battery pack components, battery boxes/jackets, circuits, etc., can solve the problems of temperature and humidity electrical properties, unstable silicon carbide performance, and large resistance variation range, to ensure sealing and connection effect, production cost reduction, production cycle reduction effect

Inactive Publication Date: 2015-05-13
SHENZHEN KEDALI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The power battery is an important part of the new energy battery. The power battery hinders the development of new energy vehicles. The safety and practical performance of the battery are its particularly important performance parameters, and the sealing and connection effects of the power battery cover are the key points. , good sealing and connection effects can increase the safety performance of the battery. At present, silicon carbide is generally used as the material of the positive pole gasket of the power battery cover plate, but the use of silicon carbide gasket has the following disadvantages: 1. The electrical performance of silicon carbide is unstable and the resistance changes. The range is large, and temperature and humidity also have a certain impact on its electrical properties; 2. The gasket made of silicon carbide has extremely poor toughness and is easy to crack

Method used

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  • Pole rod washer and power battery cover plate
  • Pole rod washer and power battery cover plate
  • Pole rod washer and power battery cover plate

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0013] A power battery cover plate of this embodiment, please refer to Figure 1 to Figure 3 , including a substrate 1, the substrate 1 is provided with two pole holes for respectively passing through the positive pole 3 and the negative pole 4, and the positive pole gasket 2 is sleeved between the positive pole 3 and the substrate 1; The positive column gasket 2 includes a conductive plastic gasket body 201, and the gasket body 201 is uniformly perforated with at least three through holes 202 in the axial direction, in this embodiment, there are 4, and each of the through holes is embedded There are ceramic cylinders 203 .

[0014] The substrate 1 of this embodiment is made of aluminum material through a mold and a punching machine and punched. The gasket body 201 of the positive pole gasket 2 is a kind of conductive p...

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Abstract

The invention discloses a pole rod washer, which includes a washer body of conductive plastic cement. The washer body is axially provided with at least three through holes uniformly, and each of the through holes is embedded with a ceramic cylinder. The invention also discloses a power battery cover plate using the pole rod washer. The pole rod washer provided by the invention has the advantages of good abrasion resistance and stable electrical performance.

Description

technical field [0001] The invention relates to battery accessories, in particular to a pole gasket and a power battery cover plate with good toughness and wear resistance and stable electrical performance. Background technique [0002] The power battery is an important part of the new energy battery. The power battery hinders the development of new energy vehicles. The safety and practical performance of the battery are its particularly important performance parameters, and the sealing and connection effects of the power battery cover are the key points. , good sealing and connection effects can increase the safety performance of the battery. At present, silicon carbide is generally used as the material of the positive pole gasket of the power battery cover plate, but the use of silicon carbide gasket has the following disadvantages: 1. The electrical performance of silicon carbide is unstable and the resistance changes. The interval is large, and temperature and humidity a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/04H01M2/08H01M50/147H01M50/184H01M50/186
CPCH01M50/172H01M50/183Y02E60/10
Inventor 励建炬
Owner SHENZHEN KEDALI IND CO LTD