Novel three-electrode battery testing device
A battery testing and three-electrode technology, which is applied in the direction of measuring devices, electrochemical variables of materials, and material analysis through electromagnetic means, can solve problems such as different battery performance, cumbersome operating procedures, and inaccurate test results, and achieve simple structure, Conducive to environmental protection and cost-saving effects
Pending Publication Date: 2022-02-08
GUANGDONG MIC POWER NEW ENERGY CO LTD
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Problems solved by technology
The existing three-electrode battery testing device is mainly used for testing laminated batteries. Even though laminated batteries and wound batteries have the same material and design, the different shapes will lead to different battery performance. Therefore, the existing The stacked three-electrode battery is not suitable for the test of the wound battery, and the guiding significance for the wound battery is limited
[0003] Further, the existing tests on winding batteries generally use copper wire lithium plating as the reference electrode. For example, in the patent CN206976495U, the reference electrode is placed between the positive electrode and the negative electrode of the battery, and between the positive electrode and the reference electrode, The reference electrode and the negative electrode are separated by a diaphragm, and then the positive electrode, negative electrode, diaphragm, and reference electrode are wound and packaged in the casing, and then tested. First, the method needs to disassemble the battery, add copper wire, and then package and operate. The process is cumbersome, and the reference electrode is actually placed in the internal structure of the wound battery. The reference electrode and separator may affect the electrochemical performance of the wound battery, resulting in inaccurate final test results
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[0033] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0034] see figure 1 and figure 2 , a novel three-electrode battery testing device 10, comprising: a housing assembly 100, a reference electrode assembly 200 and a winding core assembly 300, the housing assembly 100 includes a top cover 110 and a base 120 arranged oppositely, and the top cover 110 is mounted on the base 120, the base 120 is provided with an accommodating chamber 121; the reference electrode assembly 200 is placed in the accommodating chamber...
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Abstract
The invention discloses a novel three-electrode battery testing device which comprises a shell assembly, a reference electrode assembly, a roll core assembly and a fastening assembly, the shell assembly comprises a top cover and a base which are oppositely arranged, the top cover and the base are connected through a sealing piece, and a containing cavity is formed in the base; the reference electrode assembly is placed in the containing cavity; the roll core assembly comprises a roll core ferrule, a roll core pressing block and a to-be-tested roll core, the to-be-tested roll core is placed on the reference electrode assembly, the roll core ferrule sleeves the to-be-tested roll core, and the roll core pressing block is used for pressing the to-be-tested roll core; and the fastening assembly is used for fixing the top cover and the base. The device is particularly suitable for testing a cylindrical winding type battery cell, and has the advantages of simple structure, convenience in installation, recyclability and the like.
Description
technical field [0001] The invention relates to the field of battery testing, in particular to a novel three-electrode battery testing device. Background technique [0002] A three-electrode cell is typically a working electrode, an auxiliary electrode, and a reference electrode. By charging and discharging between the working electrode and the auxiliary electrode, and detecting the voltage curve between the working electrode, the auxiliary electrode and the reference electrode, the material properties of the working electrode can be obtained. The existing three-electrode battery testing device is mainly used for testing laminated batteries. Even though laminated batteries and wound batteries have the same material and design, the different shapes will lead to different battery performance. Therefore, the existing The stacked three-electrode battery is not suitable for the test of the wound battery, and has limited guiding significance for the wound battery. [0003] Furth...
Claims
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IPC IPC(8): G01N27/26G01N27/403
CPCG01N27/26G01N27/403Y02E60/10
Inventor 黄培英陈志勇
Owner GUANGDONG MIC POWER NEW ENERGY CO LTD