Manual blade battery lamination device

Abstract

An embodiment of the utility model discloses a manual blade battery lamination device which is used for performing manual lamination treatment on blade batteries and relates to the field of battery assembly.The manual blade battery lamination device comprises a device base plate, two positioning bosses are arranged on the device base plate, a limiting groove is formed between the two positioning bosses, the limiting groove is placed in the blade battery, and the blade battery is placed in the limiting groove. The positioning boss is arranged on the blade battery and is used for limiting the blade battery, the positioning boss is provided with tab positioning grooves, and the tab positioning grooves are arranged corresponding to the positions of a positive tab and a negative tab of the blade battery; the periphery of the device substrate is also provided with a lamination height control baffle plate; the device substrate is provided with a gap, and the gap is arranged corresponding to the position of the limiting groove. And by arranging the limiting grooves, the tab positioning grooves and the notches in the device substrate, the lamination efficiency and the lamination quality can be improved in the manual lamination process.

Description

Technical Field

[0001] The present application relates to the field of battery assembly, and particularly to a manual laminating device for blade batteries. Background Art

[0002] As a representative of secondary batteries, lithium-ion batteries have dominated the markets of portable electronic products and electric vehicles, and have also started to enter the energy storage field in recent years. However, the resources of lithium are limited. The reserves of lithium in the earth's crust are 0.0065%, far lower than the reserves of sodium at 2.74%. Lithium is not sufficient to support the rapid expansion of large-scale energy storage stations. The principles of sodium-ion batteries and lithium-ion batteries are the same, and the development experience of lithium-ion batteries can be borrowed for sodium-ion batteries. Based on the abundance of materials and the availability of production equipment and processes, sodium-ion batteries are regarded as a promising choice for energy storage, meeting the national new energy strategic plan.

[0003] However, sodium batteries are new products, and both the material system and the structural design are in the initial stage of the industry. Development and research at the laboratory stage are essential. Compared with the large-scale investment in automated production lines, manual manufacturing of batteries in small-scale laboratories in the early stage is the best choice for small and medium-sized enterprises. In the manual manufacturing of blade batteries, due to the large number of laminated layers, the lamination efficiency is low, and it is difficult to control the phase difference of each layer of the positive and negative electrode plates and the separator. It is very inefficient to ensure the phase difference control during manual lamination, and the uneven control of the lamination phase difference leads to poor coating and even potential safety hazards.

[0004] Therefore, for the manual lamination of blade sodium batteries, how to improve the lamination efficiency and lamination quality is an important technical problem that needs to be solved urgently at present. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the present utility model provides a manual laminating device for blade batteries, which can improve the lamination efficiency and lamination quality during the manual lamination process by setting limit grooves, tab positioning grooves and notches on the device substrate.

[0006] The technical solutions adopted by the present utility model to solve the above technical problems are as follows:

[0007] The present application provides a manual laminating device for blade batteries, which is used for manually laminating blade batteries. It is characterized in that it includes a device substrate, two positioning bosses are arranged on the device substrate, a limit groove is formed between the two positioning bosses, the limit groove is used to place the separator of the blade battery and limit the separator of the blade battery, and tab positioning grooves are opened on the positioning bosses, and the tab positioning grooves are arranged corresponding to the positions of the positive tab and the negative tab of the blade battery;

[0008] A lamination height control baffle is further arranged on the periphery of the device substrate;

[0009] A notch is provided on the device substrate, and the notch is arranged corresponding to the position of the limiting groove.

[0010] Optionally, in some embodiments of the present application, the length of the limiting groove is equal to the length of the separator of the blade battery, the width of the limiting groove is equal to the width of the separator of the blade battery, and the height of the limiting groove is equal to the overall height of the blade battery.

[0011] Optionally, in some embodiments of the present application, the tab positioning groove includes a negative tab positioning groove and a positive tab positioning groove. The length of the negative tab positioning groove is equal to the height of the negative tab of the blade battery minus the phase difference between the separator and the negative electrode sheet, and the depth of the negative tab positioning groove is consistent with the height of the lamination height control baffle of the blade battery.

[0012] Optionally, in some embodiments of the present application, the lateral positioning position of the positive tab positioning groove relative to the device substrate is consistent with the lateral position of the positive tab of the blade battery relative to the separator.

[0013] Optionally, in some embodiments of the present application, the lateral positioning position of the negative tab positioning groove relative to the device substrate is consistent with the lateral position of the negative tab of the blade battery relative to the separator.

[0014] Optionally, in some embodiments of the present application, the height of the positioning boss is greater than or equal to the thickness of the stacked core of the blade battery.

[0015] Compared with the prior art, the beneficial effects in the present utility model are as follows:

[0016] Through the size design of the negative tab positioning groove and the positive tab positioning groove, the alignment degree of manual lamination is ensured, and the phase difference between the positive and negative electrode sheets and the separator is effectively controlled, improving the efficiency and quality of manual lamination of the blade battery. At the same time, several notches are provided in the length direction of the device substrate, which is convenient for taking out the stacked core from the substrate after lamination is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of the manual lamination device for the blade battery provided in the embodiment of the present application assembled with the blade battery;

[0019] Figure 2Explosion structure schematic diagram of the manual lamination device for the blade battery provided by the embodiment of the present application and the blade battery assembly;

[0020] Figure 3 For Figure 2 Enlarged structure schematic diagram at position A in

[0021] Figure 4 For Figure 2 Enlarged structure schematic diagram at position B in

[0022] Explanation of reference numerals:

[0023] 100, device substrate; 110, positioning boss; 120, negative tab positioning groove; 130, positive tab positioning groove; 140, notch; 200, limiting groove; 300, blade battery; 400, height control baffle. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. It can be understood that the accompanying drawings are only for reference and illustration, and are not used to limit the present application. The connection relationships shown in the drawings are only for clear description and do not limit the connection manners.

[0025] Specifically, as Figure 1 shown, in the embodiment of the present application, a manual lamination device for the blade battery 300 is provided. This device can laminate the lamination layers of the blade battery 300 to facilitate the production of the blade battery 300. This lamination process is processed by the manual lamination device for the blade battery 300. The device is specifically as follows:

[0026] The manual laminating device for the blade battery 300 includes a device substrate 100. Two positioning bosses 110 are provided on the device substrate 100. A limiting groove 200 is formed between the two positioning bosses 110 through the device substrate 100. The limiting groove 200 is used to place the lamination layer of the blade battery 300, facilitating manual lamination to form the blade battery 300. Among them, the length of the limiting groove 200 is equal to the length of the separator of the blade battery 300, the width of the limiting groove 200 is equal to the width of the separator of the blade battery 300, and the height of the limiting groove 200 is equal to the overall height of the blade battery 300. To facilitate the lamination process of the blade battery 300, ear positioning grooves are provided on the positioning boss 110. The ear positioning grooves are set corresponding to the positive and negative electrodes of the blade battery 300, so that the positive and negative electrodes on the blade battery 300 can be placed corresponding to the positions of the ear positioning grooves, facilitating the limitation of the blade battery 300. The specific limiting method is as follows:

[0027] The size of the ear positioning grooves is set to process the blade battery 300. Specifically, the ear positioning grooves include a negative ear positioning groove 120 and a positive ear positioning groove 130. The negative ear positioning groove 120 is set corresponding to the negative electrode of the blade battery 300, and the length of the negative ear positioning groove 120 is equal to the height of the negative ear of the blade battery 300 minus the phase difference between the separator and the negative electrode sheet. The depth of the negative ear positioning groove 120 is consistent with the height of the lamination height control baffle 400 of the blade battery 300.

[0028] In the positive ear positioning groove 130, the positive ear positioning groove 130 is set corresponding to the positive electrode of the blade battery 300, and the length of the positive ear positioning groove 130 is equal to the height of the positive ear of the blade battery 300 minus the phase difference between the separator and the positive electrode sheet. The depth of the positive ear positioning groove 130 is consistent with the height of the lamination height control baffle 400 of the blade battery 300.

[0029] In the above, through the settings of the negative ear positioning groove 120 and the positive ear positioning groove 130, the lamination layer of the blade battery 300 can be well limited, avoiding the situation of position deviation during the lamination process.

[0030] Among them, the lateral positioning position of the positive ear positioning groove 130 relative to the device substrate 100 is the same as the lateral position of the positive ear of the blade battery 300 relative to the separator; the lateral positioning position of the negative ear positioning groove 120 relative to the device substrate 100 is the same as the lateral position of the negative ear of the blade battery 300 relative to the separator.

[0031] Among them, the height of the positioning boss 110 is greater than or equal to the thickness of the stacked core of the blade battery 300, facilitating the positioning boss 110 to limit the blade battery 300.

[0032] For the above structure, in the embodiment of the present application, a manual laminating device for a blade battery 300 is specifically provided. Among them, assuming that in the design of the blade battery 300, the width of the separator is 115 mm, the length of the separator is designed to be 341 mm, the length of the negative electrode sheet is 336 mm, the width of the negative electrode sheet is 112 mm, the length of the positive electrode sheet is 331 mm, and the width of the positive electrode sheet is 109 mm, then the longitudinal phase difference X1 between the separator and the negative electrode sheet = (341 - 336) / 2 = 2.5 mm, the transverse phase difference X2 between the separator and the negative electrode sheet = (115 - 112) / 2 = 1.5 mm, the longitudinal phase difference Y1 between the separator and the positive electrode sheet = (341 - 331) / 2 = 5 mm, the transverse phase difference Y2 between the separator and the positive electrode sheet = (115 - 109) / 2 = 3 mm, the height of the positive electrode tab is 30 mm, the width of the positive electrode tab is 30 mm, the distance between the edge of the positive electrode tab and the edge of the separator is 20 mm, the height of the negative electrode tab is 30 mm, the width of the negative electrode tab is 30 mm, the distance between the edge of the negative electrode tab and the edge of the separator is 20 mm, and the thickness of the stacked core is 18 mm; then in the manual laminating device of this embodiment, the length of the substrate is 341 mm, the width of the substrate is 115 mm, the length of the positive electrode tab positioning groove 130 is 25 mm, the width is 30 mm, and the depth is 20 mm ≥ 18 mm. The distance between the edge of the positive electrode tab positioning groove 130 and the edge of the substrate is 20 mm. The length of the negative electrode tab positioning groove 120 is 27.5 mm, the width is 30 mm, and the depth is 20 mm ≥ 18 mm. The distance between the edge of the negative electrode tab positioning groove 120 and the edge of the substrate is 20 mm. The height of the laminating height control baffle 400 is 20 mm ≥ 18 mm.

[0033] During the manual laminating process, first place the separator on the device substrate 100, specifically in its limit groove 200, then place a negative electrode sheet. The top of the tab of the negative electrode sheet is completely placed in the negative electrode tab positioning groove 120, then place another separator, then place a positive electrode sheet. The top of the tab of the positive electrode sheet is completely placed in the positive electrode tab positioning groove 130, then place another separator, and so on. Repeat the operation to complete the laminating step of the blade battery 300. After laminating, through the notch 140 on the substrate, lift the stacked core upward to facilitate the quick removal of the stacked core from the device substrate 100; due to the positioning functions of the negative electrode tab positioning groove 120 and the positive electrode tab positioning groove 130, the phase difference between the separator and the electrode sheet in each layer of the stacked core can be guaranteed, and there is no need for human eyes or a measuring ruler to measure and control the phase difference, which greatly improves the manual laminating efficiency and the laminating quality.

[0034] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A blade battery manual lamination device, used for manually laminating blade batteries, characterized in that: The device substrate comprises two positioning bosses, a limiting groove is formed between the two positioning bosses, the limiting groove is used to place the diaphragm of the blade battery and to limit the diaphragm of the blade battery, and the positioning boss is provided with a tab positioning groove, and the tab positioning groove is arranged corresponding to the position of the positive tab and the negative tab of the blade battery; A stack height control baffle is also provided on the periphery of the device substrate; A notch is provided on the device substrate, and the notch is arranged corresponding to the position of the limiting groove.

2. A blade battery manual stacking device according to claim 1, characterized in that: The length of the limiting groove is equal to the length of the diaphragm of the blade battery, the width of the limiting groove is equal to the width of the diaphragm of the blade battery, and the height of the limiting groove is equal to the overall height of the blade battery.

3. A blade battery manual stacking device according to claim 1, characterized in that: The tab positioning groove includes a negative tab positioning groove and a positive tab positioning groove. The length of the negative tab positioning groove is equal to the negative tab height of the blade battery minus the phase difference between the diaphragm and the negative electrode sheet. The depth of the negative tab positioning groove is consistent with the height of the stacking height control baffle of the blade battery.

4. A blade battery manual stacking device according to claim 3, characterized in that: The lateral positioning position of the positive electrode ear positioning groove relative to the device substrate is consistent with the lateral position of the positive electrode ear of the blade battery relative to the diaphragm.

5. The blade battery manual stacking device according to claim 3, characterized in that: The lateral positioning position of the negative electrode ear positioning groove relative to the device substrate is consistent with the lateral position of the blade battery negative electrode ear relative to the diaphragm.

6. A blade battery manual stacking device according to claim 1, characterized in that: The height of the positioning boss is greater than or equal to the thickness of the stacked core of the blade battery.

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