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Lithium battery electrode plate welding resistance testing device and method

A technology for resistance testing and lithium batteries, applied in measuring devices, measuring resistance/reactance/impedance, measuring electrical variables, etc., can solve problems such as high maintenance costs, achieve high equipment integration, facilitate data retrieval and consultation, and improve testing The effect of the beat

Pending Publication Date: 2020-06-09
上海映晓电子科技有限公司
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Problems solved by technology

[0002] At present, there is no method and equipment on the market that can detect whether the welding of the electrode sheet is good or bad after the lithium battery is assembled and formed. It can only be analyzed by detecting the temperature of the electrode sheet after the lithium battery is installed and used to analyze whether the welding is good or bad, which leads to Once it is detected that the electrode sheet welding is not good, the subsequent maintenance costs are too high, so a method for testing the welding resistance of lithium battery electrode sheets based on the four-lead method measurement principle is designed, which can realize the lithium battery before installation. Detect the size of the welding resistance of the electrode sheet, and analyze whether it is good or bad through the size of the welding resistance

Method used

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  • Lithium battery electrode plate welding resistance testing device and method
  • Lithium battery electrode plate welding resistance testing device and method
  • Lithium battery electrode plate welding resistance testing device and method

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Embodiment Construction

[0022] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0023] refer to Figure 1-5 , the specific implementation method adopts the following technical solutions: a lithium battery electrode piece welding resistance test device, including the main structure of the equipment and the test tool, the main structure of the equipment is provided with the test tool, the main structure of the equipment includes the frame of the equipment 1. Display 2, industrial computer 3, No. 1 DC power supply 4, No. 2 DC power supply 5, Fuma wheel 6, nanovolt meter 7, back panel 8, cylinder 9, lithium battery 10, operating table 11, test start button 12 , electric control box 13, fluorescent lamp 14, fault indicator light 15, power switch 16 and emergency stop button 17, the bottom of the equipment frame 1 is provided with ...

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Abstract

The invention discloses a lithium battery electrode plate welding resistance testing device and method, and the front end of a testing clamp is provided with a cambered surface, thereby guaranteeing that a battery electrode plate is inserted into the middle of the testing clamp without any obstacle when the battery electrode plate is contacted, and avoiding the damage to the battery electrode plate. A lithium battery positioning hole is formed in the working table, so that errors in measurement due to the fact that the lithium battery is not placed in place can be prevented; according to the test method, the problems of power cables, contact resistance, non-repetitive measurement points and the like are eliminated, and the resistance value of the weld joint of the battery electrode plate can be reflected more accurately; instruments capable of directly measuring resistance on the market are all handheld, the measurement precision can only reach the milliohm level, double electrodes areused for measurement at the same time, each lithium battery is provided with a cathode and an anode, each electrode is formed by welding two electrode plates, the device can measure the cathode and the anode at the same time, and the measurement efficiency is doubled.

Description

technical field [0001] The invention relates to a lithium battery electrode piece welding resistance testing device and method, in particular to a lithium battery electrode piece welding resistance testing method designed based on the four-lead method measurement principle. Background technique [0002] At present, there is no method and equipment on the market that can detect whether the welding of the electrode sheet is good or bad after the lithium battery is assembled and formed. It can only be analyzed by detecting the temperature of the electrode sheet after the lithium battery is installed and used to analyze whether the welding is good or bad, which leads to Once it is detected that the electrode sheet welding is not good, the subsequent maintenance costs are too high, so a method for testing the welding resistance of lithium battery electrode sheets based on the four-lead method measurement principle is designed, which can realize the lithium battery before installat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/14
CPCG01R27/14
Inventor 郑一强朱柳慧王继唯
Owner 上海映晓电子科技有限公司
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