CN218039398U - Polymer battery - Google Patents
Polymer battery Download PDFInfo
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- CN218039398U CN218039398U CN202222106236.6U CN202222106236U CN218039398U CN 218039398 U CN218039398 U CN 218039398U CN 202222106236 U CN202222106236 U CN 202222106236U CN 218039398 U CN218039398 U CN 218039398U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application discloses polymer battery relates to the relevant technical field of battery for solve battery protection board drunkenness and lead to utmost point ear to receive and pull, can lead to utmost point ear to produce the bad problem of fatigue fracture even. The polymer battery comprises a battery cell, an insulating connecting piece and a battery protection plate, wherein the battery cell comprises a battery cell body and a lug extending out of the battery cell body, the battery cell body comprises a packaging top wall and a packaging side wall which are connected, the packaging top wall is used for packaging the battery cell body, and the packaging side wall extends along the extending direction of the lug; the insulating connecting piece comprises a first insulating part, a second insulating part and a connecting part connected between the first insulating part and the second insulating part, the first insulating part is attached to the top wall of the package, and the second insulating part is attached to the side wall of the package; the battery protection board is bonded on one side of the insulating connecting piece, which deviates from the battery core body, and is connected with the lug. This application is used for avoiding leading to utmost point ear to receive to drag or even produce fatigue fracture bad because battery protection board drunkenness.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a polymer battery.
Background
At present, polymer batteries, especially polymer lithium batteries, are widely applied to portable electronic equipment due to the characteristics of high energy density, no liquid leakage and strong appearance plasticity. Such as mobile terminals, digital video cameras and notebook computers.
The polymer battery generally comprises a battery core and a battery protection plate, wherein the battery core comprises a battery core body and a lug extending out of the battery core body, the battery core body comprises a packaging side wall extending towards the direction far away from the battery core body and used for supporting the lug, and the battery protection plate is electrically connected with the lug and is bonded on the packaging side wall of the battery core body through a double faced adhesive tape. However, due to the small size and unevenness of the package side wall, the double-sided adhesive provided on the package side wall cannot be completely activated, so that the battery protection plate is not bonded firmly enough, and therefore, in the above polymer battery, the battery protection plate moves during a mechanical test, so that the tab is pulled and even has poor fatigue fracture.
Therefore, it is desirable to design a polymer battery to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The application provides a polymer battery to solve battery protection board drunkenness and lead to utmost point ear to receive and pull, can lead to utmost point ear to produce the bad problem of fatigue fracture even.
To achieve the above object, in one aspect, the present application provides a polymer battery including:
the battery cell comprises a battery cell body and a lug extending out of the battery cell body, wherein the battery cell body comprises a packaging top wall and a packaging side wall which are connected, the packaging top wall is used for packaging the battery cell body, and the packaging side wall extends along the extension direction of the lug;
the insulating connecting piece comprises a first insulating part, a second insulating part and a connecting part connected between the first insulating part and the second insulating part, wherein the first insulating part is attached to the top wall of the package, and the second insulating part is attached to the side wall of the package;
and the battery protection plate is bonded on one side of the insulating connecting piece, which deviates from the battery cell body, and is connected with the lug.
In some embodiments of the present application, the first insulation portion comprises top wall foam disposed on the top wall of the package and the second insulation portion comprises side wall foam disposed on the side wall of the package.
In some embodiments of the present application, the connection portion includes:
connect the bubble cotton, connect and seted up a plurality of trompils on the bubble cotton, the roof bubble cotton the lateral wall bubble cotton with it is cotton double faced adhesive tape of bubble, just constitutes the integral type structure to connect the bubble cotton.
In some embodiments of the present application, the first insulating portion further comprises a first insulating gummed paper adhered to the package top wall and located between the top wall foam and the package top wall;
the second insulating part also comprises second insulating gummed paper which is adhered to the packaging side wall and is positioned between the side wall foam and the packaging side wall;
the connecting part comprises a connecting insulating gummed paper connected between the first insulating gummed paper and the second insulating gummed paper.
In some embodiments of the present application, the first insulating adhesive tape, the second insulating adhesive tape and the connecting insulating adhesive tape are of an integrated structure to constitute an insulating adhesive paper layer.
In some embodiments of the present application, a gap S is provided between the top wall foam and the side wall foam, and the value range of the gap S is: 0.5 mm-1 mm.
In some embodiments of the present application, the top wall foam and/or the side wall foam have thermal conductivity.
In some embodiments of the application, the battery cell has a plurality of and arrange side by side, be equipped with on the insulating connecting piece and dodge the mouth to dodge adjacent two the concatenation department of battery cell.
In some embodiments of the present application, the polymer battery further comprises:
the protective plate gummed paper wraps the battery protective plate;
the battery cell comprises a battery cell body and is characterized in that the battery cell body further comprises a head, the tab extends out of the head, and the head is wrapped by the head adhesive tape.
In some embodiments of the present application, the polymer battery further comprises:
the electric core body further comprises a tail part far away from the head part, and the tail part is wrapped by the insulating gummed paper.
Compared with the prior art, this application is through inciting somebody to action first insulating part laminating in the insulating connecting piece is in on the encapsulation roof, the laminating of second insulating part in the insulating connecting piece is in on the encapsulation lateral wall to connect first insulating part and second insulating part through connecting portion, thereby increased the laminating area between insulating connecting piece and the electric core body, guarantee that insulating connecting piece's connection reliability is higher, when bonding above-mentioned battery protection shield on this insulating connecting piece again from this, the connection that above-mentioned setting also can guarantee battery protection shield is more firm reliable, thereby has avoided effectively because battery protection shield drunkenness and result in utmost point ear receives to drag and produces the bad problem of fatigue fracture even.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cell body in an embodiment of the present application;
FIG. 2 is a schematic view of the structure of a polymer battery header in an embodiment of the present application;
fig. 3 is a sectional view of a polymer battery head in an embodiment of the present application;
FIG. 4 is a schematic view of an insulating connector according to an embodiment of the present application;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is a schematic structural diagram of an insulating connecting member according to a second embodiment of the present application;
FIG. 7 is a right side view of the insulated connector of FIG. 6;
fig. 8 is an exploded view of a polymer battery in the example of the present application.
The main reference numbers in the drawings accompanying the present specification are as follows:
1-electric core; 11-a cell body; 111-package top wall; 112-package sidewalls; 12-a tab; 121-an intermediate connecting section;
2-an insulating connector; 21-a first insulating portion; 211-top wall foam; 212-first insulating adhesive tape; 22-a second insulation; 221-side wall foam; 222-second insulating gummed paper; 23-a connecting part; 231-opening holes; 24-avoidance port;
3-battery protection plate;
4-fixing adhesive tape;
5-protecting the board gummed paper;
6-head gummed paper; 61-first head gummed paper; 62-second head gummed paper;
7-tail gummed paper.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of a cell body in an embodiment of the present application, fig. 2 is a schematic structural diagram of a polymer battery header in the embodiment of the present application, and fig. 3 is a cross-sectional view of the polymer battery header in the embodiment of the present application. Referring to fig. 1 to 3, the present application provides a polymer battery including a battery cell 1, an insulating connector 2, and a battery protection plate 3. Electric core 1 includes electric core body 11 and stretches out utmost point ear 12 of electric core body 11, electric core body 11 is including continuous encapsulation roof 111 and encapsulation lateral wall 112, encapsulation roof 111 sets up the head at electric core body 11 for the encapsulation electric core body 11, encapsulation lateral wall 112 is followed the extending direction of utmost point ear 12 extends, promptly, the extending direction of encapsulation lateral wall 112 with the extending direction of utmost point ear 12 is the same. The insulating connector 2 includes a first insulating portion 21, a second insulating portion 22, and a connecting portion 23 connected between the first insulating portion 21 and the second insulating portion 22, wherein the first insulating portion 21 is attached to the package top wall 111, and the second insulating portion 22 is attached to the package side wall 112. The battery protection plate 3 is bonded on one side of the insulating connecting piece 2 departing from the battery cell body 11 and is connected with the lug 12.
This application is through inciting somebody to action first insulating part 21 in the insulating connecting piece 2 laminates on encapsulation roof 111, the laminating of second insulating part 22 in the insulating connecting piece 2 is in on the encapsulation lateral wall 112 to connect first insulating part 21 and second insulating part 22 through connecting portion 23, thereby increased the laminating area between insulating connecting piece 2 and the electric core body 11, guarantee that insulating connecting piece 2's connection reliability is higher, bond above-mentioned battery protection board 3 when this insulating connecting piece 2 from this again, the connection that above-mentioned setting can guarantee battery protection board 3 is more firm reliable, thereby avoided effectively because battery protection board 3 drunkenness leads to utmost point ear 12 receives to drag and even produces the bad problem of fatigue fracture.
More specifically, the tab 12 is in a horizontal state in an initial state, and the tab 12 includes a head end connected to the cell body 11, a tail end connected to the battery protection plate 3, and an intermediate connection segment 121 connecting the head end and the tail end. The head end of the tab 12 is connected to the cell body 11, the cell body 11 is led out from the packaging side wall 112, and the tail end of the tab 12 is connected to the battery protection plate 3. In the concrete manufacture process, an operator can weld the tail ends of the battery protection plate 3 and the lug 12 together, and then bends the lug 12 to bend the battery protection plate 3 connected to the tail end of the lug to the insulating connecting piece 2 deviates from one side of the battery core body 11 and is bonded with the insulating connecting piece 2 so as to realize the installation and fixation of the battery protection plate 3. In other words, the intermediate connection section 121 of the tab 12 is a U-shaped bending section, an opening of the U-shaped bending section faces the battery cell body 11, and one side of the second insulating portion 22 away from the connection portion 23 is at least partially wrapped in the opening of the U-shaped bending section and does not contact each other in the U-shaped bending section.
The battery protection plate 3 is bonded on one side of the insulating connecting piece 2 departing from the battery cell body 11. It is understood that the battery protection plate 3 is adhered to the side of the first insulating portion 21 facing away from the package top wall 111, and it is also understood that the battery protection plate 3 is adhered to the side of the second insulating portion 22 facing away from the package side wall 112.
Meanwhile, it should be noted that, the first insulating portion 21 is attached to the package top wall 111, and the battery protection plate 3 and the cell body 11 can be separated from each other, so that the cell body 11 is prevented from being damaged by burrs or edges of the battery protection plate 3, which may cause liquid leakage.
Hereinafter, the structure of the insulating connector 2 will be described in detail by using two embodiments.
Example one
Fig. 4 is a schematic structural diagram of an insulating connector according to an embodiment of the present application, and fig. 5 is an enlarged view of a portion a in fig. 4. Referring to fig. 3, 4 and 5, in some embodiments of the present application, the first insulating portion 21 includes a top wall foam 211 disposed on the package top wall 111, and the second insulating portion 22 includes a side wall foam 221 disposed on the package side wall 112. From this, the aforesaid setting of this application guarantees that in machinery type test process (for example drop test, vibration test) through utilizing the cotton 211 of roof bubble and the cotton 221 characteristics of inhaling of lateral wall bubble, antidetonation and anti bounce-back, and roof bubble is cotton 211 and the cotton 221 of lateral wall bubble can absorb partly because utmost point ear 12 that external forces such as battery protection shield 3 drunkenness, vibrations caused is dragged, reduces utmost point ear 12's atress and utmost point ear 12 fatigue fracture's risk.
Based on the above embodiment, connecting portion 23 is cotton including connecting the bubble, connecting and having seted up a plurality of trompils 231 on the bubble is cotton, roof bubble cotton 211, lateral wall bubble cotton 221 and it is cotton that the bubble is the cotton double faced adhesive tape of bubble to connect the bubble, and constitute the integral type structure. That is, in some embodiments, the insulating connector 2 is a foam double-sided adhesive tape, the foam double-sided adhesive tape is an integral sheet or strip structure when the material is supplied, the connection portion of the foam double-sided adhesive tape corresponding to the package top wall 111 and the package side wall 112 is the connection foam, and the connection foam is provided with a plurality of openings 231, so that the foam double-sided adhesive tape is conveniently bent. In addition, the top wall foam 211 may serve as the first insulating portion 21, the side wall foam 221 may serve as the second insulating portion 22, and the connection foam may serve as the connection portion 23.
The cell body 11 is substantially a flat plate, and has a height direction X, a width direction Y, and a thickness direction Z, as shown in fig. 1. The plurality of openings 231 are uniformly arranged along the width direction Y of the cell body 11. The plurality of openings 231 are elongated holes, and the length direction of the elongated holes is the same as the width direction Y of the cell body 11. Meanwhile, referring to fig. 1 to 3, the package top wall 111 and the package side wall 112 are substantially L-shaped, and a double-sided foam adhesive is respectively bonded to and covers the package top wall 111 and the package side wall 112. That is, the foam double-sided tape is also substantially L-shaped when attached to the package top wall 111 and the package side wall 112.
Example two
Fig. 6 is a schematic view of the insulating connector 2 according to the second embodiment of the present application when laid flat, and fig. 7 is a right side view of the insulating connector 2 of fig. 6. Referring to fig. 3, 6 and 7, in some embodiments of the present application, the first insulating portion 21 includes top wall foam 211 and first insulating adhesive paper 212, which are stacked, the top wall foam 211 is disposed on the package top wall 111 through the first insulating adhesive paper 212, and the first insulating adhesive paper 212 is adhered to the package top wall 111 and between the top wall foam 211 and the package top wall 111. The second insulating portion 22 includes side wall foam 221 and second insulating gummed paper 222, which are stacked, the side wall foam 221 is disposed on the package side wall 112 through the second insulating gummed paper 222, and the second insulating gummed paper 222 is adhered to the package side wall 112 and is located between the side wall foam 221 and the package side wall 112. The connection portion 23 includes a connection insulation adhesive sheet connected between the first insulation adhesive sheet 212 and the second insulation adhesive sheet 222. That is, in some embodiments, the top wall foam 211 and the side wall foam 221 are of a split structure, and both are supported by the first insulating adhesive paper 212, the second insulating adhesive paper 222, and the connecting portion 23 (e.g., connecting insulating adhesive paper). In other words, the first insulating gummed paper 212 is used for bearing the top wall foam 211, the second insulating gummed paper 222 is used for bearing the side wall foam 221, and no foam is arranged on the connecting insulating gummed paper for connecting the first insulating gummed paper 212 and the second insulating gummed paper 222. Therefore, when the first insulating gummed paper 212 is attached to and covers the package top wall 111, and the second insulating gummed paper 222 is attached to and covers the package side wall 112, since the connection insulating gummed paper is not provided with foam, the first insulating gummed paper 212 and the second insulating gummed paper 222 are respectively bonded with the package top wall 111 and the package side wall 112 after the connection insulating gummed paper is bent.
Based on the above embodiment, the first insulating gummed paper 212, the second insulating gummed paper 222 and the connecting insulating gummed paper (i.e. the connecting portion 23) are integrated to form an insulating gummed paper layer, so that the insulating gummed paper layer can be realized conveniently, and when in specific manufacture, the top wall foam 211 and the side wall foam 221 are bonded on the insulating gummed paper layer at intervals.
With reference to fig. 6, when the above-mentioned insulating adhesive paper layer is planar (that is, when the insulating adhesive paper layer is not attached to the package top wall 111 and the package side wall 112 of the electric core body 11), a gap S is formed between the top wall foam 211 and the side wall foam 221, and the value range of the gap S is: 0.5mm ~ 1mm is favorable to guaranteeing on the cotton 211 of roof bubble with the cotton 221 of lateral wall bubble is convenient for buckle into the basis of L type, can also guarantee that the cotton 211 of roof bubble and the cotton 221 of lateral wall bubble can closely laminate when buckling into the L type to further realize the isolation effect to battery protection shield 3 (the reference numeral is seen in figure 3) and electric core body 11 (the reference numeral is seen in figure 3).
In some embodiments of the present application, the top wall foam 211 and/or the side wall foam 221 have heat conductivity, so that the temperature of the battery protection board 3 bonded to the side wall foam 221 can be rapidly transmitted to the side wall foam 221, the top wall foam 211 and the battery cell body 11, the temperature rise of the battery protection board 3 can be rapidly equalized through the top wall foam 211 and the side wall foam 221, the problem of too high local temperature rise of the current battery protection board 3 is solved, and the service life of an electronic device on the battery protection board 3 is prolonged.
Meanwhile, since the top wall foam 211 and/or the side wall foam 221 have heat conduction performance, it is not necessary to increase the width of the battery protection plate 3 (i.e., the size of the battery protection plate 3 in the height direction X of the cell body 11) to obtain a larger copper sheet width, so as to reduce the internal resistance and further reduce the temperature rise of the battery protection plate 3. That is, the above-mentioned setting of this application can reduce the too high problem of the local temperature rise of battery protection shield 3 on the basis that does not increase battery protection shield 3. It should be noted that in the embodiment where the connection portion 23 includes the connection foam, the connection foam also has a thermal conductivity.
Referring to fig. 2, 4 and 6, the battery cells 1 are provided with a plurality of ports arranged in parallel, and the insulating connecting member 2 is provided with an avoidance port 24 to avoid the splicing position of two adjacent battery cells 1. Because during the specific manufacturing, peripheral adhesive tape is attached to the periphery of each electric core 1, in order to facilitate the installation of the battery protection board 3, the peripheral adhesive tape at the splicing position of two adjacent electric cores needs to be folded to be attached to the packaging top wall 111, and the avoiding opening 24 is used for avoiding the folding position. Illustratively, the escape opening 24 extends through the top wall foam 211 and partially onto the sidewall foam 221, but does not extend through the sidewall foam 221.
It should be noted that, with reference to fig. 2, fig. 6, and fig. 7, in the second insulating connector 2 in this application, the top wall foam 211 of the integral sheet structure is attached to the first insulating adhesive tape 212 in advance, the side wall foam 221 of the integral sheet structure is attached to the second insulating adhesive tape 222, and then the avoiding opening 24 is formed in the insulating connector 2, where the forming position of the avoiding opening 24 corresponds to the splicing position of two adjacent electric cores 1.
Or, the top wall bubble cotton 211 in the insulating connector 2 in this application embodiment two is cotton including the first top wall bubble and the second top wall bubble that are sheet structure, when specifically making, can laminate lateral wall bubble cotton 221 on second insulating adhesive tape 222 earlier, offers afterwards and dodge mouthful 24 on insulating adhesive tape layer, in order to cut first insulating adhesive tape 212 into first insulation district and second insulation district through dodging mouthful 24, at last with the cotton laminating of first top wall bubble in first insulation district, with the cotton laminating of second top wall bubble in the second insulation district. For example, as shown in fig. 6, the first insulation region of the first insulation tape 212 is located at the left side of the avoiding opening 24, and the second insulation region of the first insulation tape 212 is located at the right side of the avoiding opening 24.
Fig. 8 is an exploded view of a polymer battery according to an embodiment of the present invention, which further includes a fixing tape 4 for connecting a plurality of battery cells. Illustratively, the battery cell 1 includes an upper surface and a lower surface that are opposite to each other, and the fixing adhesive tapes 4 include two and are respectively adhered to the upper surface and the lower surface of the battery cell 1.
The polymer battery also comprises a protective plate gummed paper 5, and the protective plate gummed paper 5 wraps the battery protective plate 3 so as to protect and insulate the battery protective plate 3 and electronic devices installed on the battery protective plate 3. Moreover, the polymer battery further comprises a head adhesive tape 6, the battery cell body 11 further comprises a head, the tab 12 extends out of the head, and the head adhesive tape 6 wraps the head.
Illustratively, the head gummed paper 6 includes a first head gummed paper 61 and a second head gummed paper 62, the battery protection board 3 includes an FPC board, the first head gummed paper 61 is wrapped around the packaging sidewall 112 and is U-shaped, an opening of the U-shaped first head gummed paper faces the battery protection board 3, and the second head gummed paper 62 is connected at the opening to fix and limit the FPC board on the battery protection board 3.
In addition, the polymer battery further comprises a tail adhesive tape 7, the battery cell body 11 further comprises a tail part far away from the head part, and the tail part is wrapped by the tail adhesive tape 7.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims. In addition, the principle and the implementation manner of the present application are explained by applying specific examples in the specification, the above description of the embodiments is only for helping understanding the method and the core idea of the present application, and the content of the present application should not be construed as limiting the present application.
Claims (10)
1. A polymer battery, comprising:
the battery cell comprises a battery cell body and a lug extending out of the battery cell body, wherein the battery cell body comprises a packaging top wall and a packaging side wall which are connected, the packaging top wall is used for packaging the battery cell body, and the packaging side wall extends along the extension direction of the lug;
the insulating connecting piece comprises a first insulating part, a second insulating part and a connecting part connected between the first insulating part and the second insulating part, wherein the first insulating part is attached to the top wall of the package, and the second insulating part is attached to the side wall of the package;
and the battery protection plate is bonded on one side of the insulating connecting piece, which deviates from the battery cell body, and is connected with the lug.
2. The polymer battery of claim 1, wherein the first insulating portion comprises top wall foam disposed on the top wall of the package and the second insulating portion comprises side wall foam disposed on the side walls of the package.
3. The polymer battery according to claim 2, wherein the connection portion comprises:
connect the bubble cotton, connect and seted up a plurality of trompils on the bubble cotton, the roof bubble cotton the lateral wall bubble cotton with it is cotton double faced adhesive tape of bubble, just constitutes the integral type structure to connect the bubble cotton.
4. The polymer battery of claim 2, wherein the first insulating portion further comprises a first insulating gummed paper bonded to the package top wall between the top wall foam and the package top wall;
the second insulating part also comprises second insulating gummed paper which is adhered to the packaging side wall and is positioned between the side wall foam and the packaging side wall;
the connecting part comprises a connecting insulating gummed paper connected between the first insulating gummed paper and the second insulating gummed paper.
5. The polymer battery according to claim 4, wherein the first, second and connection adhesive papers are in an integrated structure to constitute an adhesive paper layer.
6. The polymer battery of claim 5, wherein a gap S is formed between the top wall foam and the side wall foam, and the value range of the gap S is as follows: 0.5 mm-1 mm.
7. The polymer battery of claim 2, wherein the top wall foam and/or the side wall foam has thermal conductivity.
8. The polymer battery according to any one of claims 1 to 7, wherein the battery cells are arranged in parallel, and an avoidance port is formed in the insulating connecting member to avoid a splicing position of two adjacent battery cells.
9. The polymer battery according to claim 8, further comprising:
the protective plate gummed paper wraps the battery protective plate;
the battery cell comprises a battery cell body and is characterized in that the battery cell body further comprises a head, the lug extends out of the head, and the head is wrapped by the head gummed paper.
10. The polymer battery according to claim 9, further comprising:
the battery cell body further comprises a tail part far away from the head part, and the tail part is wrapped by the tail part adhesive paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222106236.6U CN218039398U (en) | 2022-08-10 | 2022-08-10 | Polymer battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222106236.6U CN218039398U (en) | 2022-08-10 | 2022-08-10 | Polymer battery |
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| Publication Number | Publication Date |
|---|---|
| CN218039398U true CN218039398U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222106236.6U Active CN218039398U (en) | 2022-08-10 | 2022-08-10 | Polymer battery |
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| CN (1) | CN218039398U (en) |
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- 2022-08-10 CN CN202222106236.6U patent/CN218039398U/en active Active
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