A battery containing a soft-pack battery cell

Abstract

The present invention discloses a battery containing a soft-pack battery cell, comprising an upper cover, a soft-pack battery cell, a lower cover and a bracket. The soft-pack battery cell comprises a soft-pack battery cell body, a first pole ear and a second pole ear. The ends of the first pole ear and the second pole ear are both located at the lower part of the outer periphery of the soft-pack battery cell body and the free ends thereof extend outward. The soft-pack battery cell is arranged in the bracket. The free end of the first pole ear is fixedly connected to the upper cover or the lower cover, and the free end of the second pole ear is fixedly connected to the lower cover or the upper cover. The upper cover is sealed and fixedly connected to the top of the bracket. The bracket is arranged in the lower cover, and the upper end of the outer periphery of the lower cover abuts against the outer periphery wall of the upper end of the bracket. The battery containing a soft-pack battery cell of the present invention reduces the corrosion problem of the upper cover and the lower cover and the risk of electrolyte leakage of the battery, and increases the service life. At the same time, there will be no safety hazards such as short circuit, thereby improving the safety of the battery, and no electromagnetic interference signal will be generated, and no electromagnetic interference will be generated to the product using the battery, thereby improving product quality and user experience.

Description

Technical Field

[0001] The invention relates to a battery, in particular to a battery containing a soft-pack battery cell. Background Art

[0002] Some existing button batteries have electrolytes in steel shells, and their structure has the risk of leakage. In addition, the electrolyte may corrode the steel shell, causing the steel shell to become thinner and leak, reducing safety. Such batteries have the risk of short circuits inside, causing the battery to bulge, expand, and heat up. Since such batteries are often used in wearable products such as headphones, which are in direct contact with the human body, once the above phenomena occur, they often cause great harm to the human body and lead to safety accidents.

[0003] At the same time, the existing soft-pack batteries have irregular shapes, making them difficult to assemble in a small space, resulting in low space utilization. Especially when such soft-pack batteries are used in wearable products such as headphones and audio equipment, they will cause electromagnetic interference to the products using the batteries, reducing product quality and user experience. Summary of the invention

[0004] The present invention is completed to solve the deficiencies in the prior art. The purpose of the present invention is to provide a battery containing a soft-pack battery cell, which has the advantages of reducing the corrosion problem of the upper cover and the lower cover and the risk of electrolyte leakage of the battery, thereby increasing the service life. At the same time, there will be no safety hazards such as short circuit, thereby improving the safety of the battery, and no electromagnetic interference signal will be generated, and no electromagnetic interference will be generated to the product using the battery, thereby improving product quality and user experience.

[0005] A battery containing a soft-pack battery cell of the present invention comprises an upper cover, a soft-pack battery cell, a lower cover and a bracket, wherein the soft-pack battery cell comprises a soft-pack battery cell body, a first pole ear and a second pole ear, wherein the ends of the first pole ear and the second pole ear are both located at the lower part of the periphery of the soft-pack battery cell body and their free ends extend outward, the soft-pack battery cell is arranged in the bracket, the free end of the first pole ear is fixedly connected to the upper cover or the lower cover, the free end of the second pole ear is fixedly connected to the lower cover or the upper cover, the upper cover is sealed and fixedly connected to the top of the bracket, the bracket is arranged in the lower cover, and the upper end of the periphery of the lower cover abuts against the outer peripheral wall of the upper end of the bracket.

[0006] A battery containing a soft-pack battery cell of the present invention may also be:

[0007] The soft-pack battery cell body is cylindrical, and a winding piece wound in the center is arranged inside the soft-pack battery cell body. The ends of the first pole ear and the second pole ear are fixedly connected to the winding piece, and the upper and lower surfaces of the first pole ear and the second pole ear are fixedly connected to the lower part of the soft-pack battery cell body through pole ear glue and extend radially outward from the lower part of the soft-pack battery cell body.

[0008] The soft-pack battery cell body includes an upper aluminum-plastic film layer, a lower aluminum-plastic film layer and an electrolyte. The edges of the upper aluminum-plastic film layer and the lower aluminum-plastic film layer are fixedly connected by sealing and hot pressing. The electrolyte is located in a cavity surrounded by the upper aluminum-plastic film layer and the lower aluminum-plastic film layer. The upper and lower surfaces of the first pole ear end are bonded to the upper aluminum-plastic film layer and the lower aluminum-plastic film layer by pole ear glue, and the upper and lower surfaces of the second pole ear are bonded to the upper aluminum-plastic film layer and the lower aluminum-plastic film layer by pole ear glue.

[0009] An upper extension layer is provided radially outwardly extending from the outer periphery of the upper aluminum-plastic film layer, and a lower extension layer is provided radially outwardly extending from the outer periphery of the lower aluminum-plastic film layer. The upper extension layer and the lower extension layer are sealed, hot-pressed and fixedly connected.

[0010] The first pole ear end is vertically flipped upward, bent vertically downward and bent toward the bottom center of the soft-pack battery body in sequence, and the second pole ear end is vertically flipped upward and bent horizontally at the top center of the soft-pack battery body in sequence.

[0011] An insulator is bonded to the lower surface of the first pole tab and the upper surface of the second pole tab.

[0012] A first groove is formed at the lower end of the bracket, and a second groove is formed at the upper end of the bracket. The position of the first groove corresponds to the position of the first pole lug, and the width of the first groove is greater than the width of the first pole lug. The position of the second groove corresponds to the position of the second pole lug, and the width of the second groove is greater than the width of the second pole lug.

[0013] The top of the bracket is provided with a step surface, and the bottom of the upper cover is fixed on the step surface.

[0014] The bracket is made of plastic material.

[0015] The upper cover and the lower cover are both made of metal material.

[0016] A battery containing a soft-pack cell of the present invention comprises an upper cover, a soft-pack cell, a lower cover and a bracket, wherein the soft-pack cell comprises a soft-pack cell body, a first pole ear and a second pole ear, wherein the ends of the first pole ear and the second pole ear are both located at the lower part of the outer periphery of the soft-pack cell body and the free ends thereof extend outward, the soft-pack cell is arranged in the bracket, the free end of the first pole ear is fixedly connected to the upper cover or the lower cover, the free end of the second pole ear is fixedly connected to the lower cover or the upper cover, the upper cover is sealed and fixedly connected to the top of the bracket, the bracket is arranged in the lower cover, and the upper end of the outer periphery of the lower cover abuts against the outer periphery wall of the upper end of the bracket. In this way, the upper cover is equivalent to the positive or negative pole of the battery, and the lower cover is equivalent to the negative or positive pole of the battery, and the upper cover and the lower cover determine the positive or negative pole of the battery according to actual conditions. The first pole ear on the soft-pack cell is the positive or negative pole, and the second pole ear is the negative or positive pole. The positive or negative pole of the first pole ear and the second pole ear are arranged according to the positive or negative pole of the upper cover and the lower cover. The soft-pack battery cell includes a soft-pack battery cell body, a first pole ear and a second pole ear, the first pole ear and the second pole ear are located at the lower part of the soft-pack battery cell body, and the first pole ear free end and the second pole ear free end extend radially outward from the lower part of the soft-pack battery cell body. The first pole ear and the second pole ear can be arranged symmetrically or asymmetrically, and the specific position setting of the first pole ear and the second pole ear can be set according to actual conditions. The length setting of the first pole ear and the second pole ear is set according to actual conditions. The free end of the first pole ear is located at the lower part of the soft-pack battery cell body and is fixedly connected to the lower cover, and the connection between the first pole ear and the lower cover can be other connection methods. The free end of the second pole ear is located at the upper end of the top of the soft-pack battery cell body and is fixedly connected to the upper cover, and the second pole ear is fixedly connected to the upper cover, and the connection can be other connection methods. There is no specific limitation on the specific bending and flipping methods of the first pole ear and the second pole ear, as long as the connection between the free end of the first pole ear and the lower cover and the free end of the second pole ear and the upper cover can be finally completed. The soft-pack battery cell is located inside the bracket, and the bracket can isolate the upper cover and the lower cover to avoid the risk of short circuit caused by the connection between the upper cover and the lower cover. The upper end of the bracket for installing the soft-pack battery cell is connected to the upper cover, and then placed together in the lower cover. The upper end of the outer periphery of the lower cover abuts against the outer periphery wall of the upper end of the bracket. The lower cover is squeezed inward by a jig, and the lower cover changes from the original straight edge to a curled edge, pressing the bracket. The bracket is fixed in the lower cover and will not loosen, thereby abutting and fixing the bracket in the lower cover. By arranging the electrolyte to be located in the body of the soft-pack battery cell instead of directly installing it in the accommodating cavity, the corrosion problem of the upper and lower covers and the risk of electrolyte leakage of the battery are reduced, the service life is increased, and the safety of the battery is improved. The soft-pack battery cell is arranged in the bracket to reduce its occupied space.The battery containing a soft-pack battery cell of the present invention has the advantages over the prior art in that the corrosion problem of the upper cover and the lower cover and the risk of electrolyte leakage of the battery are reduced, the service life is increased, and there are no safety hazards such as short circuits, thereby improving the safety of the battery, and no electromagnetic interference signals are generated, and no electromagnetic interference is generated to products using the battery, thereby improving product quality and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of an explosion of a battery containing a soft-pack battery cell according to the present invention.

[0018] Figure 2 A schematic cross-sectional view of a battery containing a soft-pack battery cell according to the present invention.

[0019] Figure 3 A schematic diagram of a soft-pack battery cell containing a soft-pack battery cell according to the present invention.

[0020] Description of Figure Number

[0021] 1. Upper cover; 2. Soft-pack battery cell; 21. Soft-pack battery cell body; 211. Upper aluminum-plastic film layer; 212. Lower aluminum-plastic film layer; 22. First pole ear; 23. Second pole ear; 3. Lower cover; 4. Bracket; 41. First groove; 42. Second groove; 43. Step surface; 5. Pole ear glue; 6. Insulator. DETAILED DESCRIPTION

[0022] The following is combined with the attached drawings Figures 1 to 3 A battery containing a soft-pack battery cell of the present invention is further described in detail.

[0023] A battery containing a soft-pack battery cell of the present invention, please refer to Figures 1 to 3The relevant figures include an upper cover 1, a soft-packed cell 2, a lower cover 3 and a bracket 4. The soft-packed cell 2 includes a soft-packed cell body 21, a first pole ear 22 and a second pole ear 23. The ends of the first pole ear 22 and the second pole ear 23 are both located at the lower part of the outer periphery of the soft-packed cell body 21 and their free ends extend outward. The soft-packed cell 2 is arranged in the bracket 4. The free end of the first pole ear 22 is fixedly connected to the upper cover 1 or the lower cover 3, and the free end of the second pole ear 23 is fixedly connected to the lower cover 3 or the upper cover 1. The upper cover 1 is sealed and fixedly connected to the top of the bracket 4. The bracket 4 is arranged in the lower cover 3, and the upper end of the outer periphery of the lower cover 3 abuts against the outer periphery wall of the upper end of the bracket 4. In this way, the upper cover 1 is equivalent to the positive or negative electrode of the battery, and the lower cover 3 is equivalent to the negative or positive electrode of the battery. The upper cover 1 and the lower cover 3 determine the positive or negative electrode of the battery according to actual conditions. The first pole ear 22 on the soft-pack battery cell 2 is a positive electrode or a negative electrode, and the second pole ear 23 is a negative electrode or a positive electrode. The first pole ear 22 and the second pole ear 23 are set as positive or negative electrodes, according to the positive or negative electrode settings of the upper cover 1 and the lower cover 3. The soft-pack battery cell 2 includes a soft-pack battery cell body 21, a first pole ear 22 and a second pole ear 23. The first pole ear 22 and the second pole ear 23 are located at the lower part of the soft-pack battery cell body 21, and the free end of the first pole ear 22 and the free end of the second pole ear 23 extend radially outward from the lower part of the soft-pack battery cell body 21. The first pole ear 22 and the second pole ear 23 can be symmetrically arranged or asymmetrically arranged. The specific position setting of the first pole ear 22 and the second pole ear 23 can be set according to actual conditions. The length setting of the first pole ear 22 and the second pole ear 23 is set according to actual conditions. The free end of the first pole ear 22 is located at the lower part of the soft-pack battery cell body 21 and is fixedly connected to the lower cover 3. The connection between the first pole ear 22 and the lower cover 3 can be other connection methods. The free end of the second pole ear 23 is located at the top upper end of the soft-pack battery body 21 and is fixedly connected to the upper cover 1. The second pole ear 23 is fixedly connected to the upper cover 1, and the connection can be other connection methods. There is no specific limitation on the specific bending and flipping methods of the first pole ear 22 and the second pole ear 23, as long as the connection between the free end of the first pole ear 22 and the lower cover 3 and the free end of the second pole ear 23 and the upper cover 1 can be finally completed. The soft-pack battery 2 is located inside the bracket 4, and the bracket 4 can isolate the upper cover 1 and the lower cover 3 to avoid the risk of short circuit caused by the connection between the upper cover 1 and the lower cover 3. The upper end of the bracket 4 for installing the soft-pack battery 2 is connected to the upper cover 1, and then placed together in the lower cover 3. The upper end of the outer periphery of the lower cover 3 abuts against the outer periphery wall of the upper end of the bracket 4, and the lower cover 3 is squeezed inward by a jig, and the lower cover 3 changes from the original straight edge to a curled edge, pressing the bracket 4, and the bracket 4 is fixed in the lower cover 3 and will not loosen, thereby abutting and fixing the bracket 4 in the lower cover 3. By arranging the electrolyte to be located in the soft-pack battery cell body 21 instead of being directly installed in the accommodating cavity, the corrosion problem of the upper cover 1 and the lower cover 3 and the risk of electrolyte leakage of the battery are reduced, the service life is increased, and the safety of the battery is improved.The soft-pack battery cell 2 is arranged in the bracket 4, which can reduce the space occupied by the soft-pack battery cell. Compared with the prior art, the battery containing the soft-pack battery cell of the present invention has the advantages of reducing the corrosion problem of the upper cover 1 and the lower cover 3 and the risk of electrolyte leakage of the battery, and improving the service life. At the same time, there will be no safety hazards such as short circuit, and the safety of the battery will be improved. It will not generate electromagnetic interference signals, and will not generate electromagnetic interference to the product using the battery, thereby improving product quality and user experience.

[0024] A battery containing a soft-pack battery cell of the present invention, please refer to Figures 1 to 3The relevant figures, on the basis of the previous technical scheme, can also be: the soft-pack battery body 21 is cylindrical, and a winding member wound in the center is arranged inside the soft-pack battery body 21, and the ends of the first pole ear 22 and the second pole ear 23 are fixedly connected to the winding member, and the upper and lower surfaces of the first pole ear 22 and the second pole ear 23 are fixedly connected to the lower part of the soft-pack battery body 21 through the pole ear glue 5 and extend radially outward from the lower part of the soft-pack battery body 21. In this way, the shape of the soft-pack battery body 21 is cylindrical, which can just fit the shape of the bracket 4. At the same time, it also makes the soft-pack battery body 21 occupy a small space and save space. The free end of the first pole ear 22 and the free end of the second pole ear 23 extend from the winding member arranged inside the soft-pack battery body 21. The first pole ear 22 and the second pole ear 23 can be symmetrically arranged to extend from both sides of the winding member, or they can be asymmetrically arranged. The winding is wound in circles inside the soft-pack battery body 21, which is formed by winding the positive electrode sheet, the separator and the negative electrode sheet. The separator plays a role in preventing the positive electrode sheet and the negative electrode sheet from short-circuiting. The first pole ear 22 is connected to the positive (negative) electrode sheet and the second pole ear 23 is connected to the negative (positive) electrode sheet. The specific position can be set according to actual conditions to facilitate the connection between the soft-pack battery body 21 and other components. The upper and lower surfaces of the first pole ear 22 extending from the center of the soft-pack battery body 21 are both bonded to the pole ear glue 5. The upper and lower surfaces of the pole ear glue 5 are adhesive. The first pole ear 22 is bonded to the lower part of the soft-pack battery body 21 through the pole ear glue 5 and extends outward from the lower part of the soft-pack battery body 21; the second pole ear 23 is bonded to the lower part of the soft-pack battery body 21 through the pole ear glue 5 and extends outward from the lower part of the soft-pack battery body 21. By providing the ear glue 5, the first ear 22 and the second ear 23 are prevented from contacting with the soft-pack battery body 21, and an insulating effect is played. The ear glue 5 can extend to the outside, or it can be located only in the lower part of the soft-pack battery body 21 and not extend out. A further preferred technical solution is: the soft-pack battery body 21 includes an upper aluminum-plastic film layer 211, a lower aluminum-plastic film layer 212 and an electrolyte, the edges of the upper aluminum-plastic film layer 211 and the lower aluminum-plastic film layer 212 are fixedly connected by sealing and hot pressing, the electrolyte is located in a cavity formed by the upper aluminum-plastic film layer 211 and the lower aluminum-plastic film layer 212, the upper and lower surfaces of the end of the first ear 22 are both bonded to the upper aluminum-plastic film layer 211 and the lower aluminum-plastic film layer 212 through the ear glue 5, and the upper and lower surfaces of the second ear 23 are both bonded to the upper aluminum-plastic film layer 211 and the lower aluminum-plastic film layer 212 through the ear glue 5. In this way, a cavity is formed between the upper aluminum-plastic film layer 211 and the lower aluminum-plastic film layer 212 and is cylindrical in shape as a whole, and the cavity is filled with electrolyte. The electrolyte is arranged in the cavity, rather than being directly installed in the receiving cavity, which reduces the corrosion problem of the upper cover 1 and the lower cover 3 and the risk of electrolyte leakage of the battery, thereby increasing the service life.The upper aluminum-plastic film layer 211 is first punched out into a pit shape by a mold, and then the edges of the upper aluminum-plastic film layer 211 and the lower aluminum-plastic film layer 212 are connected by hot pressing, so that the connection between the two is tighter and used to accommodate the electrolyte. At the same time, the first pole ear 22 and the second pole ear 23 extend radially outward from the lower part of the soft-pack battery body 21, and it is only necessary to punch the pit on the upper aluminum-plastic film layer 211, which simplifies the installation steps, has a simple structure, and also increases the capacitance of the soft-pack battery body 21. The upper surface of the end of the first pole ear 22 is bonded to the upper aluminum-plastic film layer 211 through the pole ear glue 5; the lower surface of the end of the first pole ear 22 is bonded to the lower aluminum-plastic film layer 212 through the pole ear glue 5, so that the first pole ear 22 is bonded to the upper aluminum-plastic film layer 211 and the lower aluminum-plastic film layer 212 and acts as an insulator at the same time. The upper surface of the end of the second pole ear 23 is bonded to the upper aluminum-plastic film layer 211 through the pole ear glue 5; the lower surface of the end of the second pole ear 23 is bonded to the lower aluminum-plastic film layer 212 through the pole ear glue 5, so that the second pole ear 23 is bonded to both the upper aluminum-plastic film layer 211 and the lower aluminum-plastic film layer 212 and acts as an insulator at the same time. The electrolyte is loaded into the soft-pack battery body 21 to prevent the risk of electrolyte leakage of the battery; if the battery diameter is 12mm and the battery height is 5.4mm, the battery capacity can reach 50mAh; if the battery diameter is 14mm and the battery height is 5.4mm, the battery capacity can reach 65mAh; if the battery diameter is 10mm and the battery height is 5.4mm, the battery capacity can reach 40mAh. A further preferred technical solution is: an upper extension layer is provided on the outer periphery of the upper aluminum-plastic film layer 211 extending radially outward, a lower extension layer is provided on the outer periphery of the lower aluminum-plastic film layer 212 extending radially outward, and the upper extension layer and the lower extension layer are sealed and hot-pressed and fixedly connected. In this way, the upper extension layer is formed by extending the outer peripheral edge of the upper aluminum-plastic film layer 211 outward, and the lower extension layer is formed by extending the outer peripheral edge of the lower aluminum-plastic film layer 212 outward, and the upper extension layer and the lower extension layer are fixedly connected by hot pressing, so that the upper aluminum-plastic film layer 211 and the lower aluminum-plastic film layer 212 can be more closely combined to prevent leakage of electrolyte. When the soft-pack battery cell 2 is assembled into the upper cover 1 and the lower cover 3 of the battery, the upper extension layer and the lower extension layer can be folded and flipped onto the outer periphery of the soft-pack battery cell body 21, so that the internal space of the battery can be saved and the capacity of the battery cell can be maximized. Alternatively, the end of the first pole tab 22 is vertically flipped upward, vertically bent downward, and bent toward the bottom center of the soft-pack battery body 21, and the end of the second pole tab 23 is vertically flipped upward and horizontally bent at the top center of the soft-pack battery body 21. In this way, the end of the first pole tab 22 is vertically flipped upward, then vertically bent downward, and the lower end of the first pole tab 22 is vertically bent toward the bottom of the soft-pack battery body 21, that is, the top of the upper aluminum-plastic film layer 211 is vertically bent, and then the free end of the first pole tab 22 is fixed to the lower cover 3, completing the connection between the first pole tab 22 and the lower cover 3.The flipping and bending method of the first pole ear 22 is not limited to the above method, as long as the first pole ear 22 can be connected to the lower cover 3. The end of the second pole ear 23 is flipped vertically upward, and then vertically bent toward the top of the soft-pack battery 2, that is, the top of the upper aluminum-plastic film layer 211 is vertically bent, and then fixed to the upper cover 1 through the free end of the second pole ear 23 to complete the connection between the second pole ear 23 and the upper cover 1. The flipping and bending method of the second pole ear 23 is not limited to the above method, as long as the second pole ear 23 can be connected to the upper cover 1. Preferably, the first pole ear 22 is connected to the lower cover 3 by spot welding, and the second pole ear 23 is connected to the upper cover 1 by spot welding, and the welding is more precise and stronger.

[0025] A battery containing a soft-pack battery cell of the present invention, please refer to Figures 1 to 3 The relevant figures, on the basis of the previous technical solution, can also be: the lower surface of the first pole ear 22 and the upper surface of the second pole ear 23 are both bonded with an insulator 6. In this way, the insulator 6 has insulating properties, and the insulator 6 is bonded to the lower surface of the first pole ear 22 and the upper surface of the second pole ear 23. The insulator 6 on the first pole ear 22 prevents the first pole ear 22 from piercing the lower part of the soft-pack battery body 21, reducing the risk of electrolyte leakage and reducing the risk of leakage. The insulator 6 on the second pole ear 23 prevents the second pole ear 23 from piercing the upper part of the soft-pack battery body 21, reducing the risk of electrolyte leakage and reducing the risk of leakage. If the battery is used in wearable products such as headphones and speakers, the risk of leakage of the battery can be reduced and the safe use of the battery can be improved. The installation position of the insulator 6 is related to the connection method between the first pole ear 22 and the upper cover 1 or the lower cover 3. Preferably, the insulator 6 is high temperature glue, which not only has better insulation performance, but also can prevent the first pole ear 22 and the second pole ear 23 from piercing the soft-pack battery body 21, thereby reducing the leakage of electrolyte and the risk of leakage.

[0026] A battery containing a soft-pack battery cell of the present invention, please refer to Figures 1 to 3In the related figures, on the basis of the previous technical solution, it can also be: the lower end of the bracket 4 is provided with a first groove 41, and the upper end of the bracket 4 is provided with a second groove 42, the position of the first groove 41 corresponds to the position of the first pole ear 22, the width of the first groove 41 is greater than the width of the first pole ear 22, the position of the second groove 42 corresponds to the position of the second pole ear 23, and the width of the second groove 42 is greater than the width of the second pole ear 23. In this way, the bracket 4 is annular, the lower end of the bracket 4 is provided with a first groove 41, the width of the first groove 41 is greater than the width of the first pole ear 22, the first groove 41 is provided with a position for the installation of the first pole ear 22 on the soft-pack battery body 21, which is convenient for the soft-pack battery 2 to be placed in the bracket 4, and also convenient for the fixed connection between the first pole ear 22 and the lower cover 3. The upper end of the bracket 4 is provided with a second groove 42, wherein the second groove 42 is provided with a position for the installation of the second pole ear 23 on the soft-pack battery body 21, which is convenient for the soft-pack battery 2 to be placed in the bracket 4, and at the same time, it is also convenient for the installation of the soft-pack battery 2.

[0027] A battery containing a soft-pack battery cell of the present invention, please refer to Figures 1 to 3 In the related figures, on the basis of the previous technical solution, it can also be: the top of the bracket 4 is provided with a step surface 43, and the bottom of the upper cover 1 is fixed on the step surface 43. In this way, the top of the bracket 4 is provided with a step surface 43, and when the upper cover 1 and the first pole ear 22 are fixed, the upper cover 1 just covers and is fixedly connected to the step surface 43, so that the plane of the upper cover 1 and the bracket 4 are in the same plane. Among them, the second groove 42 is provided on the step surface 43. More preferably, the upper cover 1 and the bracket 4 are fixed to the bracket 4 by dispensing glue or using double-sided tape, and are also fixedly and stably connected to the step surface 43.

[0028] A battery containing a soft-pack battery cell of the present invention, please refer to Figures 1 to 3 In the relevant figures, on the basis of the above technical solution, the bracket 4 can also be made of plastic material. In this way, plastic is easy to obtain and the mold is easy to form. The bracket 4 is made of plastic, which has low cost and can play an insulating role.

[0029] A battery containing a soft-pack battery cell of the present invention, please refer to Figures 1 to 3 In the relevant figures, on the basis of the previous technical solution, the upper cover 1 and the lower cover 3 are both made of metal materials. In this way, the upper cover 1 and the lower cover 3 made of metal materials make the battery not generate electromagnetic interference signals. The battery is particularly suitable for products with high requirements for electromagnetic interference, such as wearable products such as earphones and audio equipment. It will not generate electromagnetic interference signals, and will not generate electromagnetic interference to the products using the battery, thereby improving product quality and user experience.

[0030] During installation, the end of the first pole ear 22 is vertically flipped upward, bent vertically downward, and the bottom of the soft-pack battery body 21 is bent, and the end of the second pole ear 23 is vertically flipped upward and bent horizontally at the top center of the soft-pack battery body 21 in sequence; the lower surface of the first pole ear 22 is bonded with insulating glue, and the insulating glue is connected to the bottom of the soft-pack battery body 21, and the upper surface of the second pole ear 23 is bonded with insulating glue, and the insulating glue is connected to the bottom of the soft-pack battery body 21; the soft-pack battery 2 is placed in the bracket 4 from the bottom; the upper cover 1 is spot welded, the second pole ear 23 is spot welded, and the upper cover 1 is welded to the second pole ear 23, and the upper cover 1 is also placed on the step surface 43 on the bracket 4; the welded upper cover 1 and the bracket 4 are pressed into the lower cover 3, and then the lower cover 3 is crimped by a jig to press the bracket 4; finally, the upper cover 1 and the bracket 4 are fixed to the bracket 4 by dispensing glue or fixing with double-sided tape.

[0031] The above only describes several specific embodiments of the present invention, but cannot be regarded as the protection scope of the present invention. Any equivalent changes or modifications or proportional enlargement or reduction made according to the design spirit of the present invention should be considered to fall within the protection scope of the present invention.

Claims

1. A battery containing a soft-pack cell, characterized in that: The invention comprises an upper cover (1), a soft-pack battery cell (2), a lower cover (3) and a bracket (4); the soft-pack battery cell (2) comprises a soft-pack battery cell body (21), a first pole ear (22) and a second pole ear (23); the ends of the first pole ear (22) and the second pole ear (23) are both located at the lower part of the outer periphery of the soft-pack battery cell body (21) and their free ends extend outward; the soft-pack battery cell (2) is arranged in the bracket (4); the free end of the first pole ear (22) is fixedly connected to the upper cover (1) or the lower cover (3); the free end of the second pole ear (23) is fixedly connected to the lower cover (3) or the upper cover (1); The upper cover (1) is sealed and fixedly connected to the top of the bracket (4); the bracket (4) is arranged in the lower cover (3); the upper end of the outer periphery of the lower cover (3) abuts against the outer periphery wall of the upper end of the bracket (4); the bracket (4) is made of plastic material; the soft-pack battery body (21) is cylindrical, and a winding member wound at the center is arranged in the soft-pack battery body (21); the ends of the first pole ear (22) and the second pole ear (23) are fixedly connected to the winding member, and the upper and lower surfaces of the first pole ear (22) and the second pole ear (23) are fixedly connected to the said winding member by the pole ear glue (5). The soft-pack battery cell body (21) is located at the bottom of the soft-pack battery cell body (21) and extends radially outward from the bottom of the soft-pack battery cell body (21); the soft-pack battery cell body (21) comprises an upper aluminum-plastic film layer (211), a lower aluminum-plastic film layer (212) and an electrolyte; the edges of the upper aluminum-plastic film layer (211) and the lower aluminum-plastic film layer (212) are fixedly connected by sealing and hot pressing; the electrolyte is located in a cavity formed by the upper aluminum-plastic film layer (211) and the lower aluminum-plastic film layer (212); the upper and lower surfaces of the end of the first pole ear (22) are bonded to the upper aluminum-plastic film layer (211) and the lower aluminum-plastic film layer (212) by pole ear glue (5); 12), the upper and lower surfaces of the second pole ear (23) are both bonded to the upper aluminum-plastic film layer (211) and the lower aluminum-plastic film layer (212) by pole ear glue (5); the upper aluminum-plastic film layer (211) is provided with an upper extension layer extending radially outwardly on the outer periphery, and the lower aluminum-plastic film layer (212) is provided with a lower extension layer extending radially outwardly on the outer periphery, and the upper extension layer and the lower extension layer are sealed and hot-pressed and fixedly connected; the top end of the bracket (4) is provided with a step surface (43), and the bottom of the upper cover (1) is fixed on the step surface (43); the upper cover (1) and the lower cover (3) are both made of metal material.

2. A battery containing a soft-pack cell according to claim 1, characterized in that: The end of the first pole lug (22) is sequentially vertically flipped upward, bent vertically downward, and bent toward the bottom center of the soft-pack battery cell body (21), and the end of the second pole lug (23) is sequentially vertically flipped upward and bent horizontally at the top center of the soft-pack battery cell body (21).

3. A battery containing a soft-pack cell according to claim 1 or 2, characterized in that: An insulator (6) is bonded to the lower surface of the first pole tab (22) and the upper surface of the second pole tab (23).

4. A battery containing a soft-pack cell according to claim 1 or 2, characterized in that: A first groove (41) is formed at the lower end of the bracket (4), and a second groove (42) is formed at the upper end of the bracket (4); the position of the first groove (41) corresponds to the position of the first pole lug (22), and the width of the first groove (41) is greater than the width of the first pole lug (22); the position of the second groove (42) corresponds to the position of the second pole lug (23), and the width of the second groove (42) is greater than the width of the second pole lug (23).

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