CN112749491A - Method, device and storage medium for estimating thickness of single body of winding type energy storage device - Google Patents

Method, device and storage medium for estimating thickness of single body of winding type energy storage device Download PDF

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CN112749491A
CN112749491A CN202110033464.2A CN202110033464A CN112749491A CN 112749491 A CN112749491 A CN 112749491A CN 202110033464 A CN202110033464 A CN 202110033464A CN 112749491 A CN112749491 A CN 112749491A
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thickness
winding
monomer
determining
winding layers
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CN112749491B (en
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刘伟
刘陆洲
杨宇
杨阳
孟繁志
徐泽洋
陈修强
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CRRC Qingdao Sifang Rolling Stock Research Institute Co Ltd
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Abstract

The invention relates to a method for estimating the thickness of a single body of a winding type energy storage device, which comprises the following steps: obtaining the size of a reel of a winding machine, and establishing an estimation model according to the size of the reel; determining the number of winding layers of the single body according to the estimation model; and determining the thickness of the monomer according to the thickness of the anode, the thickness of the cathode, the thickness of the diaphragm and the number of winding layers of the monomer. The winding type energy storage device can be universally applied to various soft packages, has universality, and can reduce a large amount of raw material cost such as an electrode or a diaphragm and the like through pre-evaluation, and meanwhile can reduce corresponding labor and time cost. The invention also discloses a device and a storage medium for estimating the thickness of the single body of the winding type energy storage device.

Description

Method, device and storage medium for estimating thickness of single body of winding type energy storage device
Technical Field
The present disclosure relates to the field of energy storage devices, and more particularly, to a method and an apparatus for estimating a thickness of a single body of a wound energy storage device, and a storage medium.
Background
Compared with columnar and hard-shell energy storage devices, the soft-package energy storage device has the advantages of large volume energy density, good heat dissipation performance, low cost and the like, and gradually becomes a trend of future development. The soft package energy storage device is divided into a winding type and a laminated type. Compared with a laminated device, the winding type energy storage device has higher production efficiency and lower equipment cost and is convenient for batch production. When designing an energy storage device, the matching between the wound battery cell and the punching depth of the aluminum-plastic film at the rear end is very important, and the compatibility of equipment is directly determined.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: in actual production, the thickness of the wound battery cell cannot be obtained only by the lengths of the positive electrode, the negative electrode and the diaphragm calculated according to design requirements, and incompatibility between the front end winding process and the size of the rear end battery cell in a pit can be caused; if it takes a lot of time and labor costs to make calculations to obtain different electrode lengths and corresponding cell thicknesses after winding of the separator length, a lot of raw material loss and a reduction in productivity may result.
Disclosure of Invention
The embodiment of the disclosure provides a method and a device for estimating the thickness of a single body of a winding type energy storage device and a storage medium, so as to solve the technical problem that the thickness of a wound battery cell cannot be obtained to a certain extent, which causes incompatibility in the front-end winding process and the size of a pit of a rear-end battery cell.
In a first aspect, a method for estimating a cell thickness of a wound energy storage device is provided, the method comprising: obtaining the size of a reel of a winding machine, and establishing an estimation model according to the size of the reel; determining the number of winding layers of the single body according to the estimation model; and determining the thickness of the monomer according to the thickness of the anode, the thickness of the cathode, the thickness of the diaphragm and the number of winding layers of the monomer.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the determining the thickness of the monomer includes: and determining a first thickness and a second thickness of the single body after winding according to the degree of tightness of the single body winding, wherein the first thickness is greater than the second thickness.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the determining the thickness of the monomer further includes: and averaging the first thickness and the second thickness to obtain a third thickness, wherein the third thickness is the thickness of the monomer.
With reference to the first aspect, in a third possible implementation manner of the first aspect, the determining, according to the estimation model, the number of winding layers of the single body includes: determining the circumference of the reel according to the estimation model; and determining the number of winding layers according to the winding length and the circumference of the single electrode.
With reference to the first aspect or the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the number of winding layers includes: the number of winding layers of the single positive electrode, the number of winding layers of the single negative electrode, and the number of winding layers of the single separator.
With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the positive electrode thickness T of the single body is determinedIs justA thickness T of the negative electrodeNegative poleThickness T of the diaphragmDiaphragmAnd the number of winding layers, determining the thickness T of the single bodyMonomerComprising determining the thickness of said monomer by the formula: t isMonomer＝TWinding of+TIs just×nIs just+TNegative pole×nNegative pole+TDiaphragm×nDiaphragm
Wherein, TWinding ofN is determined according to different winding tightness degrees of the single bodiesIs justIs the number of winding layers of the positive electrode, nNegative poleIs the number of winding layers of the negative electrode, nDiaphragmThe number of winding layers of the separator.
With reference to the first aspect, in a sixth possible implementation manner of the first aspect, the obtaining a reel size of a winding machine, and establishing an estimation model according to the reel size includes: obtaining the length 2a and the width 2b of the scroll and the included angle alpha of the two side surfaces of the end part of the scroll, and approximating the section of the scroll to be an ellipse according to the length, the width and the included angle.
With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, determining the number of winding layers of the single body according to the estimation model includes calculating the number of winding layers n by using the following formula:
Figure BDA0002892530630000031
where T is the thickness of the electrode and b' is the minor semi-axis length of the ellipse.
In a second aspect, an apparatus for estimating a cell thickness of a wound energy storage device is provided, comprising: the modeling module is used for acquiring the size of a reel of the winding machine and establishing an estimation model according to the size of the reel; the winding layer number obtaining module is used for determining the winding layer number of the single body according to the estimation model; and the monomer thickness obtaining module is used for determining the thickness of the monomer according to the thickness of the anode, the thickness of the cathode, the thickness of the diaphragm and the number of winding layers of the monomer.
In a third aspect, a storage medium is provided, the storage medium storing a computer program comprising program instructions which, when executed by a processor, cause the processor to carry out the aforementioned method for estimating the thickness of a cell of a wound energy storage device.
The method, the device and the storage medium for estimating the thickness of the single body of the winding type energy storage device provided by the embodiment of the disclosure can realize the following technical effects:
the winding type energy storage device can be universally applied to various soft packages, has universality, and can reduce a large amount of raw material cost such as an electrode or a diaphragm and the like through pre-evaluation, and meanwhile can reduce corresponding labor and time cost.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
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One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic flow diagram of a method for estimating a cell thickness of a wound energy storage device according to an embodiment of the disclosure;
FIG. 2 is a cross-sectional view of a plane in which the axis of the spool having a greater length is located, as provided by an embodiment of the present disclosure;
FIG. 3 is a schematic illustration of modeling the spool profile of FIG. 2 provided by an embodiment of the present disclosure;
FIG. 4 is another schematic illustration of modeling the spool profile of FIG. 2 provided by an embodiment of the present disclosure;
FIG. 5 is a schematic illustration of a cell electrode and separator wrap provided by an embodiment of the present disclosure;
FIG. 6 is another schematic illustration of a cell electrode and separator wrap provided by an embodiment of the present disclosure;
fig. 7 is a diagram illustrating the results of comparing the estimated thickness of the wound cell with the measured cell thickness provided by an embodiment of the present disclosure;
fig. 8 is an error between simulated and experimental values provided by embodiments of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application.
It is obvious that the drawings in the following description are only examples or embodiments of the present application, and that it is also possible for a person skilled in the art to apply the present application to other similar contexts on the basis of these drawings without inventive effort. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.
Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Lithium ion battery and ultracapacitor system have obtained extensive attention and research as two kinds of most common energy storage component at present, and on this basis, in order to compromise lithium ion battery's great energy density and ultracapacitor system's great power density, on the basis of original two kinds of energy storage component, new energy storage device emerges gradually, if: lithium ion capacitors, hybrid capacitors, battery-type supercapacitors, and the like.
Both the traditional lithium ion battery and the supercapacitor as well as the novel energy storage device are designed by a material system and a structure aiming at improving the energy density and the power density, at present, the material system of the energy storage device is basically stable, the mass production difficulty of pioneering materials is high, and the possibility of improving the mass energy density or the volume energy density from the material perspective is not high, so that the method for effectively improving the energy density of the energy storage device by designing the structure of the energy storage device is provided.
Fig. 1 is a schematic flow chart diagram of a method for estimating a cell thickness of a wound energy storage device according to an embodiment of the present disclosure. As shown in fig. 1, an embodiment of the present disclosure provides a method for estimating a cell thickness of a wound energy storage device, the method including: step S1: obtaining the size of a reel of a winding machine, and establishing an estimation model according to the size of the reel; step S2: determining the number of winding layers of the single body according to the estimation model; step S3: and determining the thickness of the monomer according to the thickness of the anode, the thickness of the cathode, the thickness of the diaphragm and the number of winding layers of the monomer.
The method for estimating the thickness of the single body of the winding type energy storage device provided by the embodiment of the disclosure can realize the following technical effects: the winding type energy storage device can be universally applied to various soft packages, has universality, and can reduce a large amount of raw material cost such as an electrode or a diaphragm and the like through pre-evaluation, and meanwhile can reduce corresponding labor and time cost.
In some embodiments, obtaining spool dimensions of a winding machine and building an estimation model based on the spool dimensions includes: the length 2a and the width 2b of the reel and the included angle alpha of two side surfaces of the end part of the reel are obtained, and the section of the reel is approximate to an ellipse according to the length, the width and the included angle. FIG. 2 is a cross-sectional view of a plane in which the axis of the spool having a greater length is located, according to an embodiment of the present disclosure. As shown in fig. 2, obtaining the reel size of the winding machine includes: the length of the obtained reel is 2a, the width of the reel is 2b, and the included angle of two side surfaces of the end part of the reel is alpha. Fig. 2 is a cross-sectional view of a reel provided in an embodiment of the present disclosure, which may be approximately elliptical. FIG. 3 is a schematic diagram of modeling the spool profile of FIG. 2 provided by an embodiment of the present disclosure. As shown in fig. 3, the inflection points A, B, C, D, E and F of the cross-sectional surface shown in fig. 2 are taken as end points, an estimation model is established to obtain a hexagonal ABCDEF, and a rectangular coordinate system is established with the direction of the axis with the longer length as the abscissa, the direction of the axis with the shorter length as the ordinate, and the origin as O. As can be seen from fig. 2 and 3, the hexagon ABCDEF is approximated as an ellipse O, where OA and OD are the major half length a, OH is half the spool width b, angle BAF is α, the major axis length of the ellipse is the spool length 2a, and the minor axis length of the ellipse is 2 b'.
FIG. 4 is another schematic illustration of modeling the spool profile of FIG. 2 provided by an embodiment of the present disclosure. In some embodiments, the minor semi-axis length of the ellipse is obtained from the length and width of the reel and the included angle between the two sides of the end of the reel, and the minor semi-axis length b' of the ellipse is calculated by the following formula:
Figure BDA0002892530630000061
as shown in fig. 4, a perpendicular line passing through point B to make OA intersects OA at point G, GB ═ OH ═ B,
Figure BDA0002892530630000062
the coordinates of the point B can be obtained
Figure BDA0002892530630000063
From standard equations of ellipses
Figure BDA0002892530630000064
The relation between the short semi-axis length B' of the ellipse and the width B of the reel can be obtained by substituting the coordinates of the point B into the standard equation of the ellipse.
In some embodiments, when estimating the number of winding layers of the single body, the winding of the electrode and the separator on the reel can be simplified. Root of herbaceous plantAccording to the estimation model, the first circle of electrode and diaphragm winding is wound along the perimeter of an ellipse O, then the wound electric cores take the O as the center of the ellipse to form a series of concentric ellipses, and the first circle of electrode and diaphragm winding along the perimeter C of a reel1In order to realize the purpose,
C1＝2×π×b′+4×(a-b′)
according to C1The calculation formula (2) can obtain that the circumference of the Nth circle wound on the reel is Cn，
Cn＝2×π×b′n+4×(an-b′n)
Wherein, anIs the intercept on the abscissa of the ellipse corresponding to the winding n-th circle, b'nThe intercept on the ordinate of the ellipse corresponding to the winding n-th turn is shown. Can be obtained asn＝a+n×T，b′nT is the thickness of the electrode, and comprises a foil and electrode material layers on both sides. The circumference of the cell wound in each winding layer can be expressed as:
C1＝2×π×b′+4×(a-b′)
C2＝2×π×(b′+T)+4×(a+n×T-b′-n×T)
＝2×π×(b′+T)+4×(a-b′)
C3＝2×π×(b′+2×T)+4×(a-b′)
C4＝2×π×(b′+3×T)+4×(a-b′)
…
according to C1、C2、C3And C4And can be obtained by analogy,
Cn＝2×π×[b′+(n-1)×T]+4×(a-b′)
the total length L of the electrode and separator wound N turns along the reel is,
Figure BDA0002892530630000071
the formula is arranged to obtain:
π×T×n2+[2×π×b′+4×(a-b′)-π×T]×n-L＝0
and then obtaining the number n of winding layers:
Figure BDA0002892530630000072
in some embodiments, the total length L of the single positive winding is takenIs justTotal length L of single negative electrode windingNegative poleAnd total length L of winding of the monomer separatorDiaphragm. The total length of the single anode and single cathode windings can be obtained according to the energy design of the energy storage device and the parameters of the electrodes. The winding length of the single separator may be determined according to the fact that the winding length of the separator is 1.25 times the winding length of the negative electrode. The total winding lengths of the single positive electrode, negative electrode and separator can be determined by those skilled in the art according to actual design requirements.
In some embodiments, determining the number of winding layers of the single body according to an estimation model comprises: determining the circumference C of the reel according to the estimation model; the number of winding layers is determined according to the winding length and the circumference C of the electrode of the single body.
In some embodiments, determining the number of winding layers of the single body according to an estimation model comprises calculating the number of winding layers n by the following formula:
Figure BDA0002892530630000081
where T is the thickness of the electrode and b' is the minor semi-axis length of the ellipse.
In some embodiments, the number of layers wound includes: the number of winding layers of the single positive electrode, the number of winding layers of the single negative electrode, and the number of winding layers of the single separator. Mixing L withIs just、LNegative poleAnd LDiaphragmSubstituting the formula into the formula for calculating the winding layer number n, and calculating the winding layer number n of the single anodeIs justThe number n of winding layers of the single negative electrodeNegative poleAnd the number n of winding layers of the single separatorDiaphragm。
In some embodiments, the thickness of the anode T depends on the monomerIs justA thickness T of the negative electrodeNegative poleThickness of the diaphragmDegree TDiaphragmAnd the number of winding layers, determining the thickness T of the single bodyMonomerComprising determining the thickness of the monomer by the formula:
Tmonomer＝TWinding of+TIs just×nIs just+TNegative pole×nNegative pole+TDiaphragm×nDiaphragm
Wherein, TWinding ofDetermined according to the different winding tightness of the single bodies, nIs justIs the number of winding layers of the positive electrode, nNegative poleThe number of winding layers of the negative electrode, nDiaphragmThe number of wound layers of the separator. The person skilled in the art can determine different winding tightness degrees of the single body according to actual production needs or design requirements, and further determine TWinding of。
In some embodiments, determining the thickness of the monomer comprises: and determining a first thickness and a second thickness of the wound single body according to the degree of tightness of the single body winding, wherein the first thickness is smaller than the second thickness. The first thickness may be a minimum of the thickness of the monolith and the second thickness may be a maximum of the thickness of the monolith. Fig. 5 is a schematic diagram of a cell electrode and separator wrap provided by an embodiment of the present disclosure. Fig. 6 is another schematic diagram of a cell electrode and separator wrap provided by an embodiment of the present disclosure. As shown in fig. 5 and fig. 6, fig. 5 is a schematic diagram of a loose cell after winding, and the thickness T of the wound cell can be obtained according to fig. 5Loosening，TLooseningCan be calculated by the following formula,
Tloosening＝TWinding of+TIs just×nIs just+TNegative pole×nNegative pole+TDiaphragm×nDiaphragm
＝TReel shaft+TIs just×nIs just+TNegative pole×nNegative pole+TDiaphragm×nDiaphragm
＝2×b+TIs just×nIs just+TNegative pole×nNegative pole+TDiaphragm×nDiaphragm
FIG. 6 is a schematic diagram of a compact cell after winding, and the thickness T of the wound cell can be obtained according to FIG. 6Compact，TCompactCan be calculated by the following formulaCompact＝TLoosening-2×b+2×b′-2×b＝2×(b′-b)+TIs just×nIs just+TNegative pole×nNegative pole+Diaphragm×nDiaphragm。
In some embodiments, determining the thickness of the monomer further comprises: averaging the first thickness and the second thickness to obtain a third thickness, wherein the third thickness is the thickness T of the monomerMonomer. In the course of implementing embodiments of the present disclosure, T may beLooseningAs a value of the first thickness, TCompactAs the value of the second thickness, other T determined by those skilled in the art according to the winding condition of the monomer can be usedWinding ofAs a value of the first thickness or the second thickness. The thickness of the rolled monomer can be obtained
Figure BDA0002892530630000091
The embodiment of the present disclosure also provides an apparatus for estimating a thickness of a single body of a wound energy storage device, including: the modeling module is used for acquiring the size of a reel of the winding machine and establishing an estimation model according to the size of the reel; the winding layer number obtaining module is used for determining the winding layer number of the single body according to the estimation model; and the monomer thickness obtaining module is used for determining the thickness of the monomer according to the thickness of the anode, the thickness of the cathode, the thickness of the diaphragm and the number of winding layers of the monomer.
The above modules may be functional modules or program modules, and may be implemented by software or hardware. For a module implemented by hardware, the modules may be located in the same processor; or the modules can be respectively positioned in different processors in any combination.
The embodiment of the present disclosure also provides an apparatus for estimating a thickness of a wound energy storage device, including: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the aforementioned method for estimating a thickness of a wound energy storage device.
Embodiments of the present disclosure also provide a storage medium storing a computer program comprising program instructions which, when executed by a processor, cause the processor to perform the aforementioned method for estimating a thickness of a wound energy storage device.
Fig. 7 is a diagram illustrating a comparison result between an estimated thickness of a wound cell and a measured cell thickness provided by an embodiment of the present disclosure. For the positive electrode, the negative electrode and the diaphragm of different lengths wound by the winding machine, by adopting the method, the device or the storage medium for estimating the thickness of the wound energy storage device monomer provided by the embodiment of the disclosure, the estimated thickness of the wound battery cell and the actually measured battery cell thickness are compared to obtain a result, as shown in fig. 7, the abscissa in fig. 7 is the experiment number, the ordinate is the battery cell thickness, the square point in the figure represents the simulation value, the circular point represents the experiment value, and according to the curve in fig. 7, the experiment value and the simulation value are almost coincident, which indicates that the method, the device or the storage medium has stronger accuracy for estimating the thickness of the wound battery cell. Fig. 8 is an error between simulated and experimental values provided by embodiments of the present disclosure. As shown in fig. 8, the abscissa in fig. 8 is the experiment number, the ordinate is the deviation between the simulated value and the experimental value, the deviation range between the experimental value and the simulated value is 0.16% to 0.17% according to fig. 8, the simulation accuracy reaches about 99%, and the method has a strong guiding significance for production evaluation of a production line, product design and compatibility evaluation of processes in front and rear sections of the production line.
The embodiment of the disclosure starts from a winding process, and realizes calculation of the number of winding layers and the final winding thickness of a formed monomer according to the monomer parameters by reasonably establishing a mathematical estimation model, and verifies the accuracy of the model through experiments, thereby providing early technical support for the monomer design of a battery or capacitor manufacturer, and avoiding waste of raw materials and increase of labor cost.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, so that those skilled in the art may apply the above-described modifications and variations to the present invention without departing from the spirit of the present invention.

Claims (10)

1. A method for estimating cell thickness of a wound energy storage device, comprising:
obtaining the size of a reel of a winding machine, and establishing an estimation model according to the size of the reel;
determining the number of winding layers of the single body according to the estimation model;
and determining the thickness of the monomer according to the thickness of the anode, the thickness of the cathode, the thickness of the diaphragm and the number of winding layers of the monomer.
2. The method of claim 1, wherein determining the thickness of the monomer comprises: and determining a first thickness and a second thickness of the single body after winding according to the degree of tightness of the single body winding, wherein the first thickness is greater than the second thickness.
3. The method of claim 2, wherein determining the thickness of the monomer further comprises: and averaging the first thickness and the second thickness to obtain a third thickness, wherein the third thickness is the thickness of the monomer.
4. The method of claim 1, wherein determining the number of winding layers of the cells based on the estimation model comprises: determining the circumference of the reel according to the estimation model; and determining the number of winding layers according to the winding length and the circumference of the single electrode.
5. The method according to claim 1 or 4, wherein the number of winding layers comprises: the number of winding layers of the single positive electrode, the number of winding layers of the single negative electrode, and the number of winding layers of the single separator.
6. The method of claim 5, wherein the positive electrode thickness T is determined by the monomerIs justA thickness T of the negative electrodeNegative poleThickness T of the diaphragmDiaphragmAnd the number of winding layers, determining the thickness T of the single bodyMonomerComprising determining the thickness of said monomer by the formula:
Tmonomer＝TWinding of+TIs just×nIs just+TNegative pole×nNegative pole+TDiaphragm×nDiaphragm
Wherein, TWinding ofN is determined according to different winding tightness degrees of the single bodiesIs justIs the number of winding layers of the positive electrode, nNegative poleIs the number of winding layers of the negative electrode, nDiaphragmThe number of winding layers of the separator.
7. The method of claim 1, wherein obtaining reel sizes of a winding machine, and building an estimation model based on the reel sizes comprises:
obtaining the length 2a and the width 2b of the scroll and the included angle alpha of the two side surfaces of the end part of the scroll, and approximating the section of the scroll to be an ellipse according to the length, the width and the included angle.
8. The method according to claim 7, wherein determining the number of winding layers of the single body according to the estimation model comprises calculating the number of winding layers n by the following formula:
Figure FDA0002892530620000021
where T is the thickness of the electrode and b' is the minor semi-axis length of the ellipse.
9. An apparatus for estimating the cell thickness of a wound energy storage device, comprising:
the modeling module is used for acquiring the size of a reel of the winding machine and establishing an estimation model according to the size of the reel;
the winding layer number obtaining module is used for determining the winding layer number of the single body according to the estimation model;
and the monomer thickness obtaining module is used for determining the thickness of the monomer according to the thickness of the anode, the thickness of the cathode, the thickness of the diaphragm and the number of winding layers of the monomer.
10. A storage medium, characterized in that the storage medium stores a computer program comprising program instructions which, when executed by a processor, cause the processor to carry out the method for estimating the cell thickness of a wound energy storage device according to any one of claims 1 to 8.
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