Lithium battery electrode connecting process

A lithium battery and electrode technology, which is applied in the field of lithium battery electrode connection technology, can solve problems such as high welding cost, human injury, and easy splashing of welding slag

Pending Publication Date: 2021-03-23
东莞仁海科技股ふん有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Direct welding of copper and aluminum will produce welding slag, which is easy to splash, and the welding slag is mainly solder, which is easy to cause certain damage to the human body when splashed on the human body
Currently, pulse welding is used, and the welding cost of this method is high, and the welding efficiency is high, so it is necessary to further improve the electrode welding of lithium batteries

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] like Figure 1 ~ Figure 2 As shown, a lithium battery electrode connection process, including electrode poles;

[0024] The lithium battery electrode connection process includes the following steps:

[0025] S1, processing and forming the electrode pole;

[0026] S2, cleaning the electrode pole to form a spraying position;

[0027] S3, spraying a spray layer on the surface of the spraying position.

[0028] The electrode pole 100 is based on an aluminum sheet, an aluminum alloy sheet, a copper sheet or a copper-aluminum composite sheet, which is selected according to the heat dissipation environment. Generally, it is an aluminum plate or an aluminum alloy plate, which has good heat conduction and heat dissipation performance.

[0029] In step S3, the electrode pole 100 is an aluminum or aluminum alloy sheet; the sprayed material is sprayed on the surface of ...

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Abstract

The invention relates to the technical field of battery electrode welding, and particularly relates to a lithium battery electrode connecting process. The lithium battery electrode connecting processcomprises the steps of processing and molding an electrode; cleaning the electrode to form a spraying position; and spraying a spraying layer on the surface of the spraying position. According to theinvention, the spraying layer is sprayed on a battery pole piece, so that the subsequent connector assembly or welding connection is facilitated, the cost is lower than that of the traditional electromagnetic pulse welding, the cold spraying layer is rooted in the base material, the contact resistance is low, the spraying layer formed by spraying is strong in integration, and the stability is good.

Description

technical field [0001] The invention relates to the technical field of battery electrode welding, in particular to a lithium battery electrode connection process. Background technique [0002] With the development of science and technology, lithium batteries have become the mainstream. The positive electrode of a single lithium battery is an aluminum sheet, and the negative electrode is a copper sheet. The single lithium battery needs to be connected in series to form a battery pack. The connection of the battery plays a vital role in the performance of the battery pack. The resistance of the single lithium battery is very high, and the mechanical connection between the electrodes is unreliable. Therefore, welding is used to realize the connection of copper and aluminum to improve the copper and aluminum. Comprehensive performance of aluminum. [0003] Direct welding of copper and aluminum will produce welding slag, which is easy to splash, and the welding slag is mainly so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/528H01M50/526H01M50/536H01M50/566H01M10/052
CPCH01M10/052Y02E60/10
Inventor 赵汉高
Owner 东莞仁海科技股ふん有限公司
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