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Calculation method, device, equipment and storage medium of battery winding core parameters

A battery roll and roll core technology, applied in secondary battery manufacturing, battery pack components, circuits, etc., can solve problems such as large amount of calculation, large cumulative deviation, and deviation in calculation length, so as to avoid calculation errors and make accurate judgments. , the effect of reducing the amount of calculation

Active Publication Date: 2020-03-17
EVE ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When using the concentric circle model to calculate the diameter of the winding core, not only the amount of calculation is large, but also in the actual winding length of each circle, the calculated length of the concentric circle model has deviations, and the more the number of winding turns, the greater the cumulative deviation, which cannot be achieved Accurately analyze the end position of the pole piece
In addition, the concentric circle model can only be used to calculate the maximum diameter when calculating the core diameter, and it cannot accurately calculate the end position of the pole piece, the angle between the tabs and the welding position of the tab in the core structure.

Method used

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  • Calculation method, device, equipment and storage medium of battery winding core parameters
  • Calculation method, device, equipment and storage medium of battery winding core parameters
  • Calculation method, device, equipment and storage medium of battery winding core parameters

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Embodiment 1

[0031] Figure 2a It is a flow chart of a method for calculating battery core parameters provided in Embodiment 1 of the present invention, Figure 2b It is a schematic diagram of a negative plate spiral line provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of accurately calculating battery core parameters. This method can be executed by a calculation device for battery core parameters. The device can be controlled by software and / or hardware, and generally can be integrated in a computing device, the method includes the following operations:

[0032] S110. Calculate the spiral parameters according to the preset parameters of the battery winding core, and obtain the spiral information of the negative electrode sheet of the battery winding core according to the spiral parameters and the spiral model, wherein the negative electrode sheet spiral information includes the negative electrode The total number of winding turns of the s...

Embodiment 2

[0056] image 3 It is a schematic diagram of a calculation device for battery core parameters provided by Embodiment 2 of the present invention, which can execute the calculation method for battery core parameters provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method. The embodiment is applicable to the case of accurately calculating the parameters of the battery core.

[0057] The devices include:

[0058] The first parameter acquisition module 310 is used to calculate the spiral parameters according to the preset parameters of the battery core, and obtain the spiral information of the negative plate of the battery core according to the spiral parameters and the spiral model, wherein the Negative electrode spiral information includes the total number of windings of the negative electrode and the end position of the negative electrode;

[0059]The second parameter acquisition module 320 i...

Embodiment 3

[0071] Figure 4 It is a schematic structural diagram of a computing device provided by Embodiment 3 of the present invention. Figure 4 A block diagram of a computing device 412 suitable for implementing embodiments of the invention is shown. Figure 4 The shown computing device 412 is only an example and should not impose any limitation on the functions and scope of use of the embodiments of the present invention.

[0072] Such as Figure 4 As shown, computing device 412 takes the form of a general-purpose computing device. Components of computing device 412 may include, but are not limited to: one or more processors 416, storage 428, bus 418 connecting various system components including storage 428 and processor 416.

[0073] Bus 418 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus structures. These architectur...

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Abstract

The embodiment of the present invention discloses a calculation method, device, equipment and storage medium for battery core parameters, including the following steps: calculating the helical parameter according to the preset parameters of the battery core, and then combining the helical model to obtain the negative electrode of the battery core sheet helix information; according to the preset parameters and the negative electrode sheet helical line information draw the winding core structure model diagram, then set the positions of the positive tab and the negative tab according to the preset rules, and obtain the angle between the tabs, the position of the positive tab and the end position of the positive tab angle and the radius of the circle where the positive tab is located; obtain the diameter of the core where the positive tab and negative tab are located according to the core structure model diagram and the thickness of the component material; determine the cutting size, The welding position of the positive tab and the welding position of the negative tab can avoid the calculation error caused by the traditional concentric circle model, reduce the amount of calculation, and accurately determine the end position of the pole piece, the position of the tab and the angle between the tabs.

Description

technical field [0001] The present invention relates to the technical field of battery winding cores, in particular to a calculation method, device, equipment and storage medium for parameters of battery winding cores. Background technique [0002] As an energy source with high energy density, batteries have attracted widespread attention from all over the world. First-class equipment manufacturers in Europe, America, Japan and South Korea have started the research and development and industrialization of cylindrical power battery related technologies in the early years. [0003] Usually, the winding core of the battery is formed by spirally winding and laminating the positive electrode sheet, negative electrode sheet, two-layer separator, positive electrode tab, negative electrode tab, and protective tape. In order to ensure that the winding core can be directly assembled into the casing, the diameter of the winding core needs to be within the specified value range. In ord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/04H01M2/26G06F30/20H01M50/531
CPCH01M10/0431G06F30/20H01M50/531Y02E60/10Y02P70/50
Inventor 黄利明宋鹏元徐悦斌何巍宋志新祝媛刘金成
Owner EVE ENERGY CO LTD