Battery mechanism and battery device

Abstract

The application relates to a battery mechanism and a battery device. The battery mechanism comprises a battery string, the battery string comprises a plurality of battery pieces and a welding strip, the welding strip is provided with a fixing part, one end of the welding strip is fixedly connected to one side of one battery piece through the fixing part, and a fixing assembly is arranged between the fixing part and the battery string to fix the fixing part and the battery string. Through the technical scheme, the problem that the battery piece and the welding strip are prone to being separated from each other in the related art can be solved.

Description

Technical Field

[0001] This application relates to the field of battery device technology, and in particular to battery mechanisms and battery devices. Background Technology

[0002] A photovoltaic cell device includes a cell string, which includes multiple cells connected in series. Adjacent cells are fixed together by welding strips, which have starting positions for welding to the cells.

[0003] In related technologies, when conducting reliability temperature cycling tests on battery devices, the battery string expands and contracts due to temperature. However, since the starting point of the solder ribbon is only welded to the starting point of the battery cell, the fixation between the starting point of the battery cell and the starting position of the solder ribbon is weak. Furthermore, since the starting position of the solder ribbon is under unilateral stress, the stress on the solder ribbon is unbalanced, which increases the possibility of detachment between the starting point of the battery cell and the starting position of the solder ribbon. This leads to power decay and loss of power generation efficiency in the battery device, and may even cause the electrical connection between the battery cell and the solder ribbon to fail. Utility Model Content

[0004] Therefore, it is necessary to provide a battery mechanism and battery device to address the problem of easy desoldering between the battery cells and the solder strip.

[0005] A battery mechanism, comprising:

[0006] A battery string, comprising several battery cells and a solder strip, wherein the solder strip is provided with a fixing part; one end of the solder strip is fixedly connected to one side of a battery cell through the fixing part;

[0007] A fixing component is disposed between the fixing part and the battery string to fix the fixing part and the battery string.

[0008] In one embodiment, the battery cell is provided with an interaction portion and a starting point, the starting point being located at one end of the interaction portion, and the solder strip is provided with a connecting portion and a connecting point, the connecting portion being fixedly connected to the interaction portion, the connecting point being fixedly connected to the starting point, and the fixing portion being located at the end of the connecting point away from the connecting portion.

[0009] In one embodiment, the fixing component includes:

[0010] The adhesive is applied between the mounting part and the battery cell to bond the mounting part and the battery cell together.

[0011] In one embodiment, the battery string includes a first battery cell, a first solder strip, and a second solder strip;

[0012] The first welding strip is provided with a first fixing part, and one end of the first welding strip is fixedly connected to the front side of the first battery cell through the first fixing part. A fixing adhesive is provided between the first fixing part and the front side of the first battery cell.

[0013] The second welding strip is provided with a second fixing part. One end of the second welding strip is fixedly connected to the back of the first battery cell through the second fixing part. Fixing adhesive is provided between the second fixing part and the back of the first battery cell.

[0014] In one embodiment, the battery string further includes a busbar, which is fixedly connected to the battery cells, and the fixing assembly further includes:

[0015] The clamping unit is fixedly connected to the busbar and clamps the fixing part to fix it.

[0016] In one embodiment, the clamping unit includes two clamping members spaced apart, one of which is connected to the busbar, and a fixing part is disposed between the two clamping members.

[0017] In one embodiment, the clamping member includes:

[0018] The support layer is made of insulating material;

[0019] Two adhesive layers are placed on the top and bottom sides of the support layer, respectively.

[0020] The two clamping components are fixed together by adhesive layers. The clamping components are also fixed together with the fixing part by adhesive layers, and the clamping components are also fixed together with the busbar by adhesive layers.

[0021] In one embodiment, the fixing component further includes a fixing adhesive, and the battery string includes a second battery cell, a third solder strip, and a fourth solder strip;

[0022] The third welding strip is provided with a third fixing part. One end of the third welding strip is fixedly connected to the front side of the second battery cell through the third fixing part. A clamping unit is provided between the third fixing part and the busbar.

[0023] The fourth welding strip is provided with a fourth fixing part. One end of the fourth welding strip is fixedly connected to the back of the second battery cell through the fourth fixing part. Fixing adhesive is provided between the fourth fixing part and the back of the second battery cell.

[0024] A battery device includes a front glass, a back glass, a front adhesive film, a back adhesive film, and the battery mechanism described above, wherein the front glass, the front adhesive film, the battery mechanism, the back adhesive film, and the back glass are stacked sequentially.

[0025] In one embodiment, the battery device further includes a support pad disposed between the front glass and the rear glass to limit the distance between the front glass and the rear glass.

[0026] In the aforementioned battery structure, one end of the solder strip is fixedly connected to one side of a battery cell via a fixing part, and the fixing part is fixed to the battery string via a fixing assembly. This configuration, at the initial position where the solder strip is fixedly connected to the battery cell, reduces the likelihood of detachment during thermal shock, as the forces generated by the fixed connection between the solder strip and the battery cell at other locations (excluding the solder strip itself) decrease the initial position of the solder strip from the battery cell. The forces generated by the fixing part and the battery string also reduce the likelihood of detachment. The fixed connection between the initial position of the solder strip and the battery cell is more stable, and since the two forces are in opposite directions, the initial position of the solder strip experiences balanced forces, further preventing detachment between the initial position of the solder strip and the battery cell. This avoids detachment between the solder strip and the battery cell, thereby reducing power degradation and power generation efficiency loss in the battery device, and preventing electrical connection failure between the battery cell and the solder strip. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a battery mechanism according to one embodiment;

[0028] Figure 2 This is a schematic diagram of the structure of the solder strip and the fixing component in one embodiment;

[0029] Figure 3 This is a schematic diagram of the structure of the first and second solder strips cooperating with the fixing component in another embodiment;

[0030] Figure 4 This is a schematic diagram of the structure of the welding strip and the clamping unit in another embodiment;

[0031] Figure 5 This is a schematic diagram of the clamping member according to another embodiment;

[0032] Figure 6 This is a schematic diagram of the structure in which the third and fourth solder strips mate with the fixing component, according to another embodiment.

[0033] Figure 7 This is a schematic diagram of the structure in which the fifth and sixth solder strips mate with the fixing component, according to another embodiment.

[0034] Figure 8 This is a schematic diagram of the structure in which the fifth and sixth solder strips mate with the fixing component, according to another embodiment.

[0035] Figure 9 This is a schematic diagram of the structure in which the fifth and sixth solder strips mate with the fixing component, according to another embodiment.

[0036] Figure 10 This is a schematic diagram of the structure in which the fifth and sixth solder strips mate with the fixing component, according to another embodiment.

[0037] Figure 11This is a schematic diagram of the structure of a battery device according to another embodiment.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100. Battery mechanism;

[0040] 110. Battery string;

[0041] 111. Battery cell; 1111. Interaction unit; 1112. Starting point;

[0042] 112. Welding strip; 1121. Connecting part; 1122. Fixing part; 1123. Connection point;

[0043] 1131, First solar cell; 1132, First welding strip; 11321, First fixing part; 1133, Second welding strip; 11331, Second fixing part;

[0044] 114. Busbar;

[0045] 1151, Second solar cell; 1152, Third welding strip; 11521, Third fixing part; 1153, Fourth welding strip; 11531, Fourth fixing part;

[0046] 116. Second busbar; 117. Third solar cell; 118. Fourth solar cell;

[0047] 1191, Fifth weld strip; 1192, Sixth weld strip;

[0048] 120. Fixing component; 121. Fixing adhesive; 122. Clamping unit; 1221. Clamping element; 12211. Support layer; 12212. Adhesive layer;

[0049] 200, Front glass; 300, Back glass; 400, Front adhesive film; 500, Back adhesive film; 600, Support pad. Detailed Implementation

[0050] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0051] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0052] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a fixed connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0056] See Figure 1 and Figure 2 One embodiment of this application provides a battery mechanism, which includes a battery string 110 and a fixing component 120. The battery string 110 includes a plurality of battery cells 111 and a solder strip 112. The solder strip 112 is provided with a fixing part 1122; one end of the solder strip 112 is fixedly connected to one side of a battery cell 111 through the fixing part 1122. The fixing component 120 is disposed between the fixing part 1122 and the battery string 110 to fix the fixing part 1122 and the battery string 110.

[0057] Using the technical solution of this application, one end of the welding strip 112 is fixedly connected to one side of a battery cell 111 by a fixing part 1122, and the fixing part 1122 is fixed to the battery string 110 by a fixing component 120. With this configuration, at the initial position where the solder ribbon 112 is fixedly connected to the battery cell 111, during thermal shock, the force generated by the fixed connection between the solder ribbon 112 and the battery cell 111 at other positions besides the solder ribbon 112 can reduce the possibility of the solder ribbon 112 starting position detaching from the battery cell 111. The force generated by the fixed connection between the fixing part 1122 and the battery string 110 can also reduce the possibility of the solder ribbon 112 starting position detaching from the battery cell 111. The fixed connection between the starting position of the solder ribbon 112 and the battery cell 111 is more stable, and the directions of the two forces are opposite, so the starting position of the solder ribbon 112 is under force balance, further avoiding the solder ribbon 112 starting position detaching from the battery cell 111. This can prevent the solder ribbon 112 from detaching from the battery cell 111, thereby reducing the power decay and power generation efficiency loss of the battery device, and preventing the electrical connection failure between the battery cell 111 and the solder ribbon 112.

[0058] The "one side" of the aforementioned battery cell 111 can refer to either the front or the back of the battery cell 111.

[0059] See Figure 2 When the fixing component 120 is used to fix the fixing part 1122 and the battery string 110, the initial position of the solder ribbon 112 is subjected to forces in two directions, F1 and F2, and F1 and F2 can be balanced. In related technologies, the initial position of the solder ribbon 112 only bears the force on one side.

[0060] Furthermore, by adopting the above structure, the connection between the starting position of the solder ribbon 112 and the battery cell 111 is more stable, thereby enhancing the ohmic contact between the solder ribbon 112 and the battery cell 111.

[0061] In this application, the welding strip 112 is welded and fixed to the battery cell 111, and the starting position of the welding strip 112 is welded and fixed to the starting point of the battery cell 111.

[0062] See Figure 2 The battery cell 111 is provided with an interaction part 1111 and a starting point 1112. The starting point 1112 is located at one end of the interaction part 1111. The solder ribbon 112 is provided with a connecting part 1121 and a connecting point 1123. The connecting part 1121 is fixedly connected to the interaction part 1111, and the connecting point 1123 is fixedly connected to the starting point 1112. The fixing part 1122 is located at the end of the connecting point 1123 opposite to the connecting part 1121. The connecting point 1123 is the starting position of the solder ribbon 112. With this configuration, the connecting point 1123 is subjected to both the force generated by the fixed connection between the connecting part 1121 and the interaction part 1111, and the force generated by the fixed connection between the fixing part 1122 and the battery string 110. Moreover, the directions of the two forces are opposite, making it less likely for the solder ribbon 112 to detach from the starting point 1112 during the expansion and contraction caused by temperature changes, thus improving the reliability of the connection.

[0063] When the welding strip 112 is welded and fixed to the battery cell 111, the starting point 1112 is the starting point of the welding.

[0064] Specifically, the fixing component 120 includes a fixing adhesive 121, which is disposed between the fixing part 1122 and the battery cell 111 to adhere the fixing part 1122 and the battery cell 111. This configuration allows the fixing part 1122 and the battery cell 111 to be fixed using the fixing adhesive 121, ensuring connection strength while facilitating operation by workers. Furthermore, the fixing adhesive 121 occupies a small area, avoiding interference with subsequent lamination work.

[0065] In some embodiments, the fixing adhesive 121 can be a fixing adhesive, which can be processed on one side of the battery cell by spraying or printing.

[0066] In some embodiments, the fixing adhesive 121 is designed with a cross-sectional area of ​​0.8mm × 0.5mm, a thickness between 20µm and 30µm, a peel strength of 15N / mm, the ability to withstand temperatures between -40°C and +200°C, and a volume resistance greater than 1 × 10⁻⁶. 14 Ω×cm, with a light transmittance greater than 92% after curing. Fixative 121 further secures the solder ribbon after curing.

[0067] In this embodiment, the battery cell 111 can be the battery cell 111 at the end of the battery string 110, or it can be a battery cell 111 at a non-end.

[0068] See Figure 3 In another embodiment, the battery string 110 includes a first battery cell 1131, a first solder ribbon 1132, and a second solder ribbon 1133. The first solder ribbon 1132 has a first fixing portion 11321, one end of which is fixedly connected to the front side of the first battery cell 1131 via the first fixing portion 11321. A fixing adhesive 121 is provided between the first fixing portion 11321 and the front side of the first battery cell 1131. The second solder ribbon 1133 has a second fixing portion 11331, one end of which is fixedly connected to the back side of the first battery cell 1131 via the second fixing portion 11331. A fixing adhesive 121 is provided between the second fixing portion 11331 and the back side of the first battery cell 1131. This configuration, by providing a first solder ribbon 1132 and a second solder ribbon 1133 on the front and back sides of the first battery cell 1131 respectively, and by applying adhesive between the first fixing part 11321 and the front side of the first battery cell 1131, and between the second fixing part 11331 and the back side of the first battery cell 1131, achieves a double-sided fixing structure for the first battery cell 1131. This improves the symmetry and balance of the connection between the first battery cell 1131 and the first solder ribbon 1132 and the second solder ribbon 1133, reducing deformation or desoldering caused by unilateral stress. Furthermore, the use of adhesive to bond both the first fixing part 11321 and the second fixing part 11331 simplifies the fixing method and facilitates operation by staff.

[0069] In this embodiment, the first battery cell 1131 is the battery cell at one end of the battery string 110.

[0070] Specifically, the first welding strip 1132 has a first connecting part, a first connecting point and a first fixing part arranged in sequence, and the second welding strip 1133 has a second connecting part, a second connecting point, a second fixing part and a first conductive part arranged in sequence, and the first conductive part is fixedly connected to the busbar.

[0071] The front side of the first battery cell 1131 is provided with a first interactive part and a first starting point. The first starting point is located at one end of the first interactive part. The first connecting part is fixedly connected to the first interactive part, and the first connecting point is fixedly connected to the first starting point. A fixing adhesive 121 is provided between the first fixing part and the front side of the first battery cell 1131.

[0072] The back of the first battery cell 1131 is provided with a second interactive part and a second starting point. The second starting point is located at one end of the second interactive part. The second connecting part is fixedly connected to the second interactive part, and the second connecting point is fixedly connected to the second starting point. A fixing adhesive 121 is provided between the second fixing part and the back of the first battery cell 1131.

[0073] See Figure 4 In another embodiment, the battery string 110 further includes a busbar 114, which is fixedly connected to the battery cell 111. The fixing assembly 120 further includes a clamping unit 122, which is fixedly connected to the busbar 114 and clamps the fixing part 1122 to fix it. This arrangement enhances the constraint force on the connection point 1123 through the clamping unit 122. Furthermore, by using the clamping unit 122 to clamp the fixing part 1122, stress concentration in the fixing part 1122 can be avoided, reducing the risk of desoldering and preventing damage to the fixing part 1122, thus improving the service life of the solder strip 112. At the same time, the clamping unit 122 is located on the busbar 114, which facilitates the fixing of the clamping unit 122 and prevents the clamping unit 122 from affecting subsequent lamination work.

[0074] In this embodiment, the length of the solder strip 112 is extended by 5mm to 8mm compared to the solder strip in the related art.

[0075] Specifically, the clamping unit 122 includes two clamping members 1221, which are spaced apart. One of the clamping members 1221 is connected to the busbar 114, and the fixing part 1122 is disposed between the two clamping members 1221. This arrangement, using two spaced-apart clamping members 1221, with one connected to the busbar 114, clamps the fixing part 1122 between them, improving the stability and reliability of the clamping unit 122. Furthermore, this structure allows for a uniform distribution of clamping force, preventing damage to the fixing part 1122 due to stress concentration.

[0076] See Figure 5The clamping member 1221 includes a support layer 12211 and two adhesive layers 12212. The support layer 12211 is made of insulating material. The two adhesive layers 12212 are respectively disposed on the upper and lower sides of the support layer 12211. The two clamping members 1221 are glued and fixed by the adhesive layers 12212. The clamping members 1221 are glued and fixed to the fixing part 1122 by the adhesive layers 12212, and the clamping members 1221 are glued and fixed to the busbar 114 by the adhesive layers 12212. With this configuration, the clamping member 1221 adopts a composite structure of support layer 12211 and adhesive layer 12212. The support layer 12211 is made of insulating material, which can prevent electrical short circuits and improve the safety of the clamping member 1221. The upper and lower sides of the support layer 12211 are provided with adhesive layers 12212, which realizes multiple adhesive fixation between the clamping member 1221 and the fixing part 1122, the clamping member 1221 and the busbar 114, and the clamping member 1221, thereby enhancing the firmness and stability of the connection.

[0077] In some embodiments, the support layer 12211 may be made of PET. The cross-sectional area of ​​the support layer 12211 may be 0.7mm × 180mm, and the thickness may be set between 0.1mm and 0.2mm.

[0078] See Figure 6 In another embodiment, the fixing assembly 120 further includes a fixing adhesive 121. The battery string 110 includes a second battery cell 1151, a third solder ribbon 1152, and a fourth solder ribbon 1153. The third solder ribbon 1152 is provided with a third fixing part 11521, one end of which is fixedly connected to the front side of the second battery cell 1151 through the third fixing part 11521. A clamping unit 122 is provided between the third fixing part 11521 and the busbar 114. The fourth solder ribbon 1153 is provided with a fourth fixing part 11531, one end of which is fixedly connected to the back side of the second battery cell 1151 through the fourth fixing part 11531. A fixing adhesive 121 is provided between the fourth fixing part 11531 and the back side of the second battery cell 1151. Using the above structure, by combining the clamping unit 122 and the fixing adhesive 121, the third solder ribbon 1152 and the fourth solder ribbon 1153 are applied respectively. This design avoids damage to the third fixing part 11521 and also prevents the fixed connection between the fourth fixing part 11531 and the back of the second battery cell 1151 from affecting subsequent lamination work.

[0079] In this embodiment, the second battery cell 1151 is the battery cell at one end of the battery string 110.

[0080] Specifically, the third welding strip 1152 has a third connecting part, a third connecting point and a third fixing part arranged in sequence, and the fourth welding strip 1153 has a fourth connecting part, a fourth connecting point, a fourth fixing part and a second conductive part arranged in sequence, and the second conductive part is fixedly connected to the busbar.

[0081] The second battery cell 1151 has a third interaction part and a third starting point on its front side. The third starting point is located at one end of the third interaction part. The third connecting part is fixedly connected to the third interaction part, and the third connecting point is fixedly connected to the third starting point. A clamping unit 122 is provided between the third fixing part and the busbar 114.

[0082] The back of the second battery cell 1151 is provided with a fourth interaction part and a fourth starting point. The fourth starting point is located at one end of the fourth interaction part. The fourth connecting part is fixedly connected to the fourth interaction part, and the fourth connecting point is fixedly connected to the fourth starting point. A fixing adhesive 121 is provided between the fourth fixing part and the back of the second battery cell 1151.

[0083] The battery string 110 also includes a second busbar 116, a third battery cell 117, a fourth battery cell 118, a fifth solder strip 1191, and a sixth solder strip 1192. The second busbar 116 and busbar 114 are located at opposite ends of the battery string 110, and the third battery cell 117 is located at the other end of the battery string 110. One end of the fifth solder strip 1191 is fixedly connected to the second busbar 116, and the other end is fixedly connected to the front side of the third battery cell 117. One end of the sixth solder strip 1192 is fixedly connected to the back side of the third battery cell 117, and the other end is fixedly connected to the front side of the fourth battery cell 118. The fifth solder strip 1191 has a fifth fixing part, and the sixth solder strip 1192 has a sixth fixing part.

[0084] See Figure 7 In another embodiment, the sixth fixing part is fixedly connected to the back of the third battery cell 117 by a fixing adhesive 121.

[0085] See Figure 8 In another embodiment, the sixth fixing part is fixedly connected to the back side of the third battery cell 117 by a fixing adhesive 121, and the fifth fixing part is fixedly connected to the front side of the third battery cell 117 by a fixing adhesive 121.

[0086] See Figure 9 The fifth fixing part is fixedly connected to the front side of the third battery cell 117 by fixing adhesive 121, and the sixth fixing part is fixedly connected to the second busbar 116 by clamping unit.

[0087] See Figure 10 The sixth fixing part is fixedly connected to the second busbar 116 through a clamping unit.

[0088] See Figure 11 Another embodiment of this application provides a battery device, which includes a front glass 200, a back glass 300, a front adhesive film 400, a back adhesive film 500, and the aforementioned battery mechanism 100. The front glass 200, front adhesive film 400, battery mechanism 100, back adhesive film 500, and back glass 300 are stacked sequentially. This arrangement provides a multi-layered stacked structure for the battery device, forming a stable and highly protective encapsulation system. Furthermore, using the aforementioned battery mechanism 100 improves the reliability and lifespan of the battery device.

[0089] In related technologies, due to the influence of high temperature, the front and back adhesive films melt and overflow between the front and back glass, causing the edges of the front and back adhesive films to become thinner. When the front and back glass are encapsulated, the edges of the front and back glass will bend, increasing the possibility of deformation of the front and back glass during operation. The deformation of the front and back glass will squeeze the battery mechanism 100, thereby increasing the possibility of damage to the battery mechanism 100.

[0090] Furthermore, the battery device also includes a support pad 600, which is disposed between the front glass 200 and the back glass 300 to limit the distance between them. This arrangement allows the support pad to provide edge support for the front glass 200, reducing the likelihood of deformation of the front and back glass 200 and 300. It also reduces the pressure exerted by the front and back glass 200 on the front and back adhesive films 400 and 500, decreasing the amount of adhesive film overflow. This reduces the pressure exerted by the front and back glass 200 on the battery assembly 100, preventing damage to the battery assembly 100 and improving the reliability of the battery device.

[0091] Furthermore, after sealing the edges of the battery device, it is laminated to form a laminate, then framed, fitted with a junction box, and the edges are cured with silicone. Finally, a reliability temperature cycling test is conducted.

[0092] This application is compatible with TopCon, HJT, TBC, HBC, and perovskite tandem solar cell technologies.

[0093] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A battery mechanism, characterized in that, The battery mechanism includes: A battery string (110) includes a plurality of battery cells (111) and a solder strip (112). The solder strip (112) is provided with a fixing part (1122). One end of the solder strip (112) is fixedly connected to one side of a battery cell (111) through the fixing part (1122). A fixing component (120) is disposed between the fixing part (1122) and the battery string (110) to fix the fixing part (1122) and the battery string (110).

2. The battery mechanism according to claim 1, characterized in that, The battery cell (111) is provided with an interaction part (1111) and a starting point (1112). The starting point (1112) is located at one end of the interaction part (1111). The solder strip (112) is provided with a connecting part (1121) and a connecting point (1123). The connecting part (1121) is fixedly connected to the interaction part (1111), and the connecting point (1123) is fixedly connected to the starting point (1112). The fixing part (1122) is located at the end of the connecting point (1123) away from the connecting part (1121).

3. The battery mechanism according to claim 1, characterized in that, The fixing component (120) includes: A fixing adhesive (121) is disposed between the fixing part (1122) and the battery cell (111) to bond the fixing part (1122) and the battery cell (111).

4. The battery mechanism according to claim 3, characterized in that, The battery string (110) includes a first battery cell (1131), a first solder strip (1132), and a second solder strip (1133). The first solder strip (1132) is provided with a first fixing part (11321). One end of the first solder strip (1132) is fixedly connected to the front side of the first battery cell (1131) through the first fixing part (11321). The fixing adhesive (121) is provided between the first fixing part (11321) and the front side of the first battery cell (1131). The second welding strip (1133) is provided with a second fixing part (11331). One end of the second welding strip (1133) is fixedly connected to the back side of the first battery cell (1131) through the second fixing part (11331). The fixing adhesive (121) is provided between the second fixing part (11331) and the back side of the first battery cell (1131).

5. The battery mechanism according to claim 1, characterized in that, The battery string (110) further includes a busbar (114), which is fixedly connected to the battery cell (111). The fixing assembly (120) further includes: A clamping unit (122) is fixedly connected to the busbar (114). The clamping unit (122) clamps the fixing part (1122) to fix the fixing part (1122).

6. The battery mechanism according to claim 5, characterized in that, The clamping unit (122) includes two clamping members (1221), which are spaced apart. One of the clamping members (1221) is connected to the busbar (114), and the fixing part (1122) is disposed between the two clamping members (1221).

7. The battery mechanism according to claim 6, characterized in that, The clamping member (1221) includes: A support layer (12211) is made of an insulating material; Two adhesive layers (12212) are respectively disposed on the upper and lower sides of the support layer (12211); The two clamping members (1221) are glued and fixed by the adhesive layer (12212). The clamping member (1221) and the fixing part (1122) are glued and fixed by the adhesive layer (12212). The clamping member (1221) and the busbar (114) are glued and fixed by the adhesive layer (12212).

8. The battery mechanism according to claim 5, characterized in that, The fixing component (120) also includes a fixing adhesive (121), and the battery string (110) includes a second battery cell (1151), a third solder strip (1152), and a fourth solder strip (1153). The third welding strip (1152) is provided with a third fixing part (11521). One end of the third welding strip (1152) is fixedly connected to the front side of the second battery cell (1151) through the third fixing part (11521). The clamping unit (122) is provided between the third fixing part (11521) and the busbar (114). The fourth welding strip (1153) is provided with a fourth fixing part (11531). One end of the fourth welding strip (1153) is fixedly connected to the back side of the second battery cell (1151) through the fourth fixing part (11531). The fixing adhesive (121) is provided between the fourth fixing part (11531) and the back side of the second battery cell (1151).

9. A battery device, characterized in that, The battery device includes a front glass (200), a back glass (300), a front adhesive film (400), a back adhesive film (500), and a battery mechanism (100) according to any one of claims 1 to 8, wherein the front glass (200), the front adhesive film (400), the battery mechanism (100), the back adhesive film (500), and the back glass (300) are stacked sequentially.

10. The battery device according to claim 9, characterized in that, The battery device also includes a support pad (600) disposed between the front glass (200) and the rear glass (300) to limit the distance between the front glass (200) and the rear glass (300).

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