Method and system for manufacturing a battery
A manufacturing method and battery technology, applied in the direction of measuring electricity, measuring electrical variables, instruments, etc., can solve problems such as the consistency test of battery modules and packaged batteries that cannot be fundamentally solved
Active Publication Date: 2021-04-09
深圳市富鑫产业科技有限公司
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[0004] The invention provides a battery manufacturing method and system, aiming to solve the problem that the existing battery evaluation usually uses the AC internal resistance plus voltage test method for consistency testing, which cannot fundamentally solve the consistency testing of battery modules and packaged batteries question
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[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Meanwhile, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.
[0042] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude one or more other features. , whole, step, operation, element, component and / or the presence or addition of a collection thereof.
[0043] It should also be und...
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The invention belongs to the technical field of batteries, and mainly provides a battery manufacturing method and system, which can classify multiple batteries consistently through the DC impedance of multiple batteries and preset impedance screening conditions; The bathtub curve screens and evaluates a plurality of battery cells after consistency classification, and screens out qualified cells, and screens and evaluates multiple battery modules according to the bathtub curve of the preset battery module, and screens out qualified batteries Module, according to the preset bathtub curve of the packaged battery, screens and evaluates multiple packaged batteries, and screens out qualified packaged batteries, so that users can complete the consistency test of the battery cell, battery module and packaged battery at one time, reliable Consistency testing and screening, which solves the problem that the existing battery evaluation usually uses the AC internal resistance plus voltage test method for consistency testing, which cannot fundamentally solve the problem of consistency testing of battery modules and packaged batteries.
Description
technical field [0001] The invention belongs to the field of battery technology, and in particular relates to a battery manufacturing method and system. Background technique [0002] With the continuous development of power batteries, power batteries are playing an increasingly important role in the fields of new energy electric vehicles, boats, agricultural machinery and construction machinery. Because the consistency of the power battery is very important to the quality of the battery, if the consistency of the power battery is not good, the battery's electric capacity will be seriously attenuated, and the normal service life cannot be achieved. Therefore, the power battery usually needs to be consistent before leaving the factory. To ensure the reliability of the ex-factory batteries, the consistency of the ex-factory quality of the single cells is inspected. [0003] However, the existing battery evaluation usually uses the AC internal resistance plus voltage test metho...
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IPC IPC(8): B07C5/344G01R31/367
CPCB07C5/344
Inventor 张建华
Owner 深圳市富鑫产业科技有限公司