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Method for testing resistance of battery diaphragm

A battery diaphragm and resistance technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve problems such as environmental pollution, and achieve the effects of being environmentally friendly, avoiding environmental pollution, and saving experimental costs.

Pending Publication Date: 2018-12-18
SHANGHAI ENERGY NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a method for testing the resistance of the battery diaphragm, which is used to solve the problem that the organic electrolyte in the prior art requires glove boxes, drying rooms, etc. to remove water and oxygen during experimental testing. Environmental requirements for high-cost testing environment; avoiding contact or excessive inhalation of volatile, toxic and harmful organic electrolytes by testers; avoiding environmental pollution of organic electrolytes; and improving the accuracy of experimental data

Method used

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  • Method for testing resistance of battery diaphragm
  • Method for testing resistance of battery diaphragm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] First, proceed to step S1: provide a battery pole piece, a battery diaphragm, and an aqueous electrolyte to prepare a battery to be tested; the battery pole piece includes a metal sheet with stable chemical properties as the positive pole piece and the negative pole piece of the battery to be tested, and the positive pole piece The battery separator and the negative electrode sheet are separated by the battery separator, and the water-based electrolyte is located between the battery separator, the positive electrode sheet, and the negative electrode sheet; the water-based electrolyte is either acidic or alkaline. , the aqueous electrolyte contains one of the first metal ions or the second metal ions used for migration and conduction, and the first metal ions include a group consisting of lithium ions, sodium ions, potassium ions, and magnesium ions A combination of one or more of them, the second metal ion includes a combination of one or more of the group consisting of ...

Embodiment 2

[0051] Compared with Example 1, this example uses different test equipment, and the preparation of the battery to be tested is the same as that of Example 1, and will not be repeated here.

[0052] Specifically, in this embodiment, the test equipment uses a multi-channel battery internal resistance tester to measure the internal resistance of the battery to be tested, and the experiment is repeated three times.

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PUM

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Abstract

The invention provides a method for testing the resistance of a battery diaphragm. The method comprises the steps that battery pole pieces, the battery diaphragm and aqueous electrolytes are providedto prepare a to-be-tested battery; the battery pole pieces comprise metal pieces with the stable chemical properties to serve as an anode piece and a cathode piece of the to-be-tested battery; the anode piece and the cathode piece are separated through the battery diaphragm; the aqueous electrolytes are arranged between the battery diaphragm and the anode piece as well as between the battery diaphragm and the cathode piece; the aqueous electrolytes are acidic or alkaline and contain first metal ions or second metal ions for migrating conduction; the first metal ions comprise one or more of groups constituted by lithium ions, sodium ions, potassium ions and magnesium ions; and the second metal ions comprise one or more of groups constituted by zinc ions and manganese ions. The to-be-testedbattery is connected with testing equipment, and under the testing environment, the to-be-tested battery is tested to obtain the resistance of the battery diaphragm.

Description

technical field [0001] The invention belongs to the field of battery testing and relates to a method for testing battery diaphragm resistance. Background technique [0002] Lithium-ion batteries have been widely used in electronic products such as portable phones, digital cameras, notebook computers, power tools, equipment such as electric vehicles. [0003] Lithium-ion batteries generally include four basic components: electrodes, electrolytes, diaphragms, and casings. At present, most lithium-ion batteries using organic electrolytes are on the market. Although organic electrolytes are the first choice for the production, research and development, and experiments of lithium-ion batteries, they still have many disadvantages such as volatile, poor electrical conductivity, high production costs, toxic and harmful, and unfriendly to the environment. [0004] Batteries using aqueous solutions as electrolytes have the advantages of low cost, environmental friendliness, higher ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
Inventor 程跃方宏晨胡园鲍晋珍庄志
Owner SHANGHAI ENERGY NEW MATERIALS TECH CO LTD