Method for evaluating performance of soft package lithium ion total battery by using button type half battery
A half-cell, lithium-ion technology, which is applied in the field of evaluating the performance of soft-pack lithium-ion full-cells, can solve the problems of lack of limited connection, reduced data reliability, etc., to achieve good practicability, saving test resources, and high test accuracy. Effect
Pending Publication Date: 2022-05-27
WANXIANG 123 CO LTD
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Abstract
The invention relates to the field of lithium ion batteries, and discloses a method for evaluating the performance of a soft-package lithium ion total battery by using button half batteries, which comprises the following steps of: manufacturing a positive plate, manufacturing a negative plate, combining and compacting to respectively manufacture two-system button half batteries and three-system button half batteries, and testing the battery performance of the manufactured button half batteries. By setting the electrolyte injection ratio and the coating surface density and selecting the negative electrode combination of the negative electrode material and the copper foil with different sizes, the prepared button type half cell can accurately reflect the battery performance of the lithium ion total battery, the data reliability of the button type half cell is improved, a series of total batteries with different positive electrode coating amounts can be evaluated, and the battery performance of the lithium ion total battery is improved. A large number of test resources are saved, the test method also has good applicability in a three-electrode system, and the difference between evaluation results of the button type half-battery lithium ion total battery is shortened.
Application Domain
Final product manufactureElectrical testing +1
Technology Topic
Copper foilLithium electrode +7
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- Comparison scheme(12)
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PUM
Property | Measurement | Unit |
Thickness | 15.0 ~ 20.0 | µm |
Thickness | 12.0 ~ 20.0 | µm |
Thickness | 200.0 | µm |
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