WO2020114524A1

WO2020114524A1 - Battery comprising soft packaged cell

Info

Publication number: WO2020114524A1
Application number: PCT/CN2020/070763
Authority: WO
Inventors: 李良彬; 肖海燕; 吴健; 刘晓伟; 董水金; 冯全生
Original assignee: 新余赣锋电子有限公司
Priority date: 2018-12-06
Filing date: 2020-01-07
Publication date: 2020-06-11
Also published as: CN109411642A

Abstract

A battery comprising a soft packaged cell (1), comprising the soft packaged cell (1), an electromagnetic shielding piece (2) and a lower cover (3); the soft packaged cell (1) comprises a soft packaged cell body (11), a first tab (12) and a second tab (13), the first tab (12) and the second tab (13) being located on the periphery of the soft packaged cell body (11), and free ends of the first tab (12) and the second tab (13) extending outward; the electromagnetic shielding piece (2) is adhered to the upper surface of the soft packaged cell body (11), the first tab (12) and the second tab (13) are both bent and extend to a position above the upper surface of the electromagnetic shielding piece (2), the bottom of the soft packaged cell body (11) is adhered to the bottom surface of the inner side of the lower cover (3), and the electromagnetic shielding piece (2) and the lower cover (3) are both sealed and filled with injection molding adhesive layers (4). The battery comprising the soft packaged cell (1) reduces the generated electromagnetic interference signal, reduces the generated electromagnetic interference on a product using the battery, improves the quality of the product and the user experience; and avoid the risk of leakage of electrolyte, so as to reduce hidden dangers such as short circuiting of the battery.

Description

Battery with soft-packed battery core

Technical field

The invention relates to a battery, in particular to a battery containing a soft-packed battery core.

Background technique

In some existing button batteries, there is electrolyte in the steel case, and there is a risk of liquid leakage in the structure, and the electrolyte may corrode the steel case, resulting in thinner leakage of the steel case and reduced safety. There is a risk of short circuit inside this type of battery, causing the battery to bulge, swell, heat, etc., because this type of battery is often used in wearing products such as headphones, direct contact with the human body, once the above phenomenon occurs, it will often cause greater harm to the human body , A security incident occurred.

At the same time, the shape of the existing soft-pack battery is not fixed, it is difficult to assemble in a narrow space, and the space utilization rate is low. Especially when this type of soft-pack battery is used in headphones and audio wearable products, products that use this battery will Generate electromagnetic interference, reduce product quality and user experience.

Summary of the invention

The present invention is completed to solve the shortcomings in the prior art. The object of the present invention is to provide a battery with a soft-packed battery core, which has the advantages of reducing the generation of electromagnetic interference signals and reducing the production of products using the battery Electromagnetic interference improves product quality and user experience; there is no risk of electrolyte leakage, reducing hidden safety hazards such as battery short circuits.

A battery containing a soft-packed battery core of the present invention includes a soft-packed battery core, an electromagnetic shielding sheet, and a lower cover. The soft-packed battery core includes a soft-packed battery core body, a first pole ear, and a second pole ear. The first pole ear and the second pole ear are located on the outer periphery of the soft-packed cell body and the free ends extend outward, the electromagnetic shielding sheet is glued on the upper surface of the soft-packed cell body, the The first pole ear and the second pole ear are both bent and extended above the upper surface of the electromagnetic shielding sheet, and the bottom of the soft-packed battery core body is glued to the inner bottom surface of the lower cover.

The electromagnetic shielding sheet and the lower cover are sealed and filled with an injection glue layer.

The battery with a soft-packed battery core of the present invention may also be:

A heat shrinkable sleeve made of heat shrinkable material is sleeved on the lower cover, and free ends of the first pole ear and the second pole ear extend upward from the heat shrink sleeve.

The heat shrinkable sleeve is made of polyvinyl chloride material or polyethylene or PET.

The first tab and the second tab extend outward from the upper or middle or lower portion of the outer periphery of the soft-packed cell body.

The body of the soft-packed battery cell is cylindrical or square. The soft-packed cell is provided with a winding member wound around the center. The ends of the first tab and the second tab are fixedly connected to On the winding member, both the upper and lower surfaces of the first tab and the second tab are fixedly connected to the outer periphery of the body of the soft-packed battery core through the tab glue, and radially from the outer periphery of the body of the soft-packed battery core Extend outward.

The body of the soft-packed battery core includes an upper aluminum plastic film layer, a lower aluminum plastic film layer and an electrolyte. The upper aluminum plastic film layer and the edge of the lower aluminum plastic film layer are fixedly connected by sealing hot pressing. The electrolyte is located in the cavity formed by the upper aluminum plastic film layer and the lower aluminum plastic film layer, and both the upper and lower surfaces of the end of the first pole ear are bonded to the upper aluminum plastic film layer through the pole ear glue And on the lower aluminum plastic film layer.

The lower cover is a metal layer or a plastic layer, an electromagnetic shielding material is added in the plastic layer, or an anti-electric shielding paint is sprayed on the plastic layer.

An insulator is adhered to both the upper surface of the first pole ear and the upper surface of the second pole ear.

The bottom of the body of the soft-pack battery cell is adhered to the inner bottom of the lower cover by double-sided tape or glue.

A battery containing a soft-packed battery core of the present invention includes a soft-packed battery core, an electromagnetic shielding sheet, and a lower cover. The soft-packed battery core includes a soft-packed battery core body, a first pole ear, and a second pole ear. The first pole ear and the second pole ear are located on the outer periphery of the soft-packed cell body and the free ends extend outward, the electromagnetic shielding sheet is glued on the upper surface of the soft-packed cell body, the The first pole ear and the second pole ear are both bent and extended above the upper surface of the electromagnetic shielding sheet, and the bottom of the soft-packed battery core body is glued to the inner bottom surface of the lower cover. In this way, the first pole ear on the soft-packed cell is a positive pole or a negative pole, the second pole ear is a negative pole or a positive pole, and the positive pole or the negative pole of the first pole ear and the second pole ear are set according to actual conditions. The soft cell includes a soft cell body, a first pole ear, and a second pole ear. The first pole ear and the second pole ear are located on the outer periphery of the soft body cell body, and the first pole ear free end and the second pole ear are free. The end extends radially outward from the outer periphery of the body of the soft pack cell. The first pole ear and the second pole ear may be arranged symmetrically or asymmetrically. The specific positions of the first pole ear and the second pole ear may be set according to actual conditions. The length settings of the first pole ear and the second pole ear are set according to actual conditions. The body of the soft-pack battery core can be any shape as long as it can be installed inside the lower cover. The electromagnetic shielding sheet plays an anti-interference and shielding role. The electromagnetic shielding sheet is adhered to the upper surface of the soft-packed battery core body and the entire surface of the soft-packed battery core body is covered. The first pole ear and the second pole ear are turned on the upper surface of the electromagnetic shielding sheet by turning or bending. The specific turning or bending manner of the first pole ear and the second pole ear is not limited, as long as the first pole ear and the second pole ear can be completed The free end of the dipole ear can be located above the electromagnetic shielding sheet. The soft pack battery cell and the bent first and second pole tabs are adhered to the inner bottom surface of the lower cover, and the lower cover provides a mounting location for the soft pack battery cell. The electromagnetic shielding sheet is used to wrap the upper surface of the soft-pack battery core body. The soft-pack battery core body is sheathed in the lower cover, and no electromagnetic interference signal is generated, and no electromagnetic interference is caused to the products using the battery, thereby improving product quality and user use. Experience. By providing a soft-pack battery cell, the electrolyte can be accommodated, preventing the electrolyte from directly corroding the metal casing, and reducing the risk of electrolyte leakage. Compared with the prior art, a battery containing a soft-packed battery core of the present invention has the advantages of reducing the generation of electromagnetic interference signals, reducing the electromagnetic interference of products using the battery, improving product quality and user use Experience; there will be no risk of electrolyte leakage, reducing potential safety hazards such as battery short circuits.

BRIEF DESCRIPTION

FIG. 1 is a schematic diagram of explosion of a battery containing a soft-packed battery core of the present invention.

FIG. 2 is an overall schematic diagram of a battery containing a soft-pack battery cell of the present invention.

FIG. 3 is a schematic cross-sectional view of a battery containing a soft-packed battery cell of the present invention.

4 is another exploded schematic view of a battery containing a soft-packed battery cell of the present invention.

5 is a schematic cross-sectional view of a battery containing a soft-packed battery cell of the present invention.

Description of drawing number

1. Soft-packed battery core; 11. Soft-packed battery body; 111, upper aluminum-plastic film layer; 112, lower aluminum-plastic film layer; 12, first pole ear; 13, second pole ear; 14, pole ear glue ; 2. Electromagnetic shielding sheet; 3. Lower cover; 4. Injection plastic layer; 5. Heat shrinkable sleeve; 6. Double-sided adhesive.

detailed description

The battery of the present invention will be described in further detail with reference to FIGS. 1 to 5 of the accompanying drawings.

A battery containing a soft-packed battery core of the present invention, please refer to the related figures in FIGS. 1 to 5, including a soft-packed battery core 1, an electromagnetic shielding sheet 2 and a lower cover 3, the soft-packed battery core 1 includes a soft pack A cell body 11, a first pole ear 12 and a second pole ear 13, the first pole ear 12 and the second pole ear 13 are located on the outer periphery of the soft-packed cell body 11 and their free ends extend outward, The electromagnetic shielding sheet 2 is adhered to the upper surface of the soft-pack battery core body 11, and the first tab 12 and the second tab 13 are both bent and extended above the upper surface of the electromagnetic shielding sheet 2 The bottom of the soft-pack battery core body 11 is glued to the inner bottom surface of the lower cover 3. In this way, the first tab 12 on the soft pack cell 1 is a positive electrode or a negative electrode, the second tab 13 is a negative electrode or a positive electrode, and the positive or negative electrode settings of the first and

second tabs

12 and 13 are set according to actual conditions . The flexible cell 1 includes a flexible cell body 11, a first tab 12 and a second tab 13, the first tab 12 and the second tab 13 are located on the outer periphery of the flexible cell body 11, and the first tab 12 The free ends and the free ends of the second tabs 13 extend radially outward from the outer periphery of the soft-packed cell body 11. The first pole ear 12 and the second pole ear 13 may be arranged symmetrically or asymmetrically. The specific positions of the first pole ear 12 and the second pole ear 13 may be set according to actual conditions. The length settings of the first pole ear 12 and the second pole ear 13 are set according to actual conditions. The soft-packed cell body 11 may have any shape as long as it can be installed inside the lower cover 3. The electromagnetic shielding sheet 2 plays a role of anti-interference and shielding. The electromagnetic shielding sheet 2 is adhered to the upper surface of the soft-packed cell body 11 and its entire surface covers the upper surface of the soft-packed cell body 11. The first tabs 12 and the second tabs 13 are turned toward the upper surface of the electromagnetic shielding sheet 2 by turning or bending, and the specific turning or folding manners of the first tabs 12 and the second tab 13 are not limited as long as they can be completed The free ends of the first pole ear 12 and the second pole ear 13 may be located above the electromagnetic shielding sheet 2. The battery pack 1 to be soft-packed and the bent first and

second pole tabs

12 and 13 are adhered to the inner bottom surface of the lower cover 3, and the lower cover 3 provides a mounting location for the soft pack battery 1. By arranging the electromagnetic shielding sheet 2 to wrap the upper surface of the soft-pack battery core body 11, the soft-pack battery core body 11 is sheathed in the lower cover 3, and no electromagnetic interference signal is generated, and no electromagnetic interference is caused to the product using the battery, thereby improving the product Quality and user experience. By setting the soft-pack battery cell 1 to accommodate the electrolyte, the electrolyte is prevented from directly corroding the metal casing, and the risk of electrolyte leakage is reduced. Compared with the prior art, a battery containing a soft-packed battery core of the present invention has the advantages of reducing the generation of electromagnetic interference signals, reducing electromagnetic interference on products using the battery, and improving product quality and user use Experience; there will be no risk of electrolyte leakage, reducing potential safety hazards such as battery short circuits.

For a battery containing a soft-packed battery cell of the present invention, please refer to the related drawings in FIGS. 1 to 5. On the basis of the foregoing technical solution, the electromagnetic shielding sheet 2 and the lower cover 3 may be sealed. Filled with injection glue layer 4. In this way, the injection molding layer 4 is filled into the electromagnetic shielding sheet 2 and the lower cover 3 by a low-pressure injection molding machine, so that the injection molding layer 4 can seal the soft-packed battery core 1. By installing a low-pressure injection molding machine and filling the injection molding layer 4, there will be no safety hazards such as electrolyte leakage and short circuit, resulting in battery bulging, expansion, and heat generation. More preferably, the injection-molded adhesive layer 4 is formed by a mold on the injection molding machine, and the injection-molded adhesive layer 4 is provided with an escape groove, which is used to avoid the position where the first pole lug 12 bends and the second pole lug 13 bend s position.

For a battery containing a soft-packed battery cell of the present invention, please refer to the relevant drawings in FIGS. 1 to 5. On the basis of the foregoing technical solution, the battery can also be made of a heat-shrinkable material sleeved on the lower cover 3 The heat shrinkable sleeve 5, the free ends of the first pole ear 12 and the second pole ear 13 protrude upward from the heat shrinkable sleeve 5. In this way, the heat shrinkable sleeve 5 is sleeved on the lower cover 3. The heat-shrinkable sleeve 5 is made of heat-shrinkable material, that is, it can shrink the lower cover 3 and the injection-molded adhesive layer 4 after shrinking. After the heat shrinkable sleeve 5 is installed on the lower cover 3, the heat shrinkable sleeve 5 makes the upper end of the heat shrinkable sleeve 5 abut on the injection molding adhesive layer 4, which can not only stabilize the injection molding adhesive layer 4, the first tab 12 and the second The pole ear 13 can also play an aesthetic role. Wherein, the free ends of the first pole ear 12 and the second pole ear 13 extend outward from the upper end of the heat shrinkable sleeve 5. More preferably, the ends of the first pole ear 12 and the second pole ear 13 are both turned vertically upward first, and then bent toward the soft-packed battery core body 11. The method of turning and bending the first tab 12 is not limited to the above method, as long as the first tab 12 and the second tab 13 can be bent toward the upper surface of the soft cell body 11. A further preferred technical solution is that the heat shrinkable sleeve 5 is made of polyvinyl chloride, polyethylene or PET material. In this way, the heat shrinkable tube 5 made of polyvinyl chloride, polyethylene or PET is easily heated and shrunk.

For a battery containing a soft-packed battery cell of the present invention, please refer to the related drawings in FIG. 1 to FIG. 5. On the basis of the foregoing technical solution, the first pole ear 12 and the second pole ear 13 may also be: It extends outward from the upper or middle or lower part of the outer periphery of the soft-packed cell body 11. In this way, the first tabs 12 and the second tabs 13 extend radially outward from the upper or middle or lower portion of the outer periphery of the soft-packed cell body 11, that is, the different positions are selected according to the different requirements of the soft-packed cell 1 The soft-coated cells 1 of the first pole ear 12 and the second pole ear 13.

For a battery including a soft-packed battery cell of the present invention, please refer to the related drawings in FIGS. 1 to 5. Based on the foregoing technical solution, the soft-packed battery cell body 11 may be cylindrical or square. The soft-pack battery core 1 is provided with a winding member wound around the center, and both ends of the first tab 12 and the second tab 13 are fixedly connected to the winding member, and the first Both the upper and lower surfaces of the tab 12 and the second tab 13 are fixedly connected to the outer periphery of the soft-packed cell body 11 through the tab glue 14 and extend radially outward from the outer periphery of the soft-packed cell body 11. In this way, the shape of the soft-packed battery core body 11 is cylindrical, which can just fit the shape in the lower cover 3 and save space. Or the outer shape of the soft-pack battery core body 11 may be square, and the soft-pack battery core 1 can be placed in the cover 3, and the shape can be set according to the actual situation. The free ends of the first pole ears 12 and the second pole ears 13 protrude from the winding member provided inside the flexible cell body 11. The first pole ears 12 and the second pole ears 13 can be arranged symmetrically from the winding The two sides of the winding part can also be extended asymmetrically. The winding member is wound around the flexible package core body 11 one by one, and is formed by winding a positive pole piece, a separator and a negative pole piece, and the separator plays a role of preventing short circuit of the positive pole piece and the negative pole piece. The first pole lug 12 is connected to the positive (negative) pole piece and the second pole lug 13 is connected to the negative (positive) pole piece. The specific position can be set according to the actual situation to facilitate the connection between the soft pack cell 1 and other parts connection. The upper and lower surfaces of the first pole lug 12 protruding from the center of the soft cell body 11 are bonded to the lug glue 14, the upper and lower surfaces of the lug glue 14 are adhesive, and the first pole lug 12 passes through the lugs The glue 14 is adhered to the upper part, middle part or lower part of the soft pack cell body 11 and extends outward from the outer periphery of the soft pack cell body 11; the second tab 13 is adhered to the upper part of the soft pack cell body 11 by the tab glue 14 The middle or lower part extends outward from the outer periphery of the soft-packed cell body 11. By providing the tab ear glue 14, the contact between the first tab ear 12 and the second tab ear 13 and the soft-packed battery core body 11 is prevented to play an insulating role. A further preferred technical solution is that: the soft-pack battery core body 11 includes an upper aluminum plastic film layer 111, a lower aluminum plastic film layer 112 and an electrolyte, the upper aluminum plastic film layer 111 and the lower aluminum plastic film layer 112 The edges are fixedly connected by sealing hot pressing, the electrolyte is located in a cavity formed by the upper aluminum plastic film layer 111 and the lower aluminum plastic film layer 112, and the upper and lower surfaces of the end of the first tab 12 Both of them are bonded to the upper aluminum plastic film layer 111 and the lower aluminum plastic film layer 112 by the tab glue 14. In this way, a cavity is formed between the upper aluminum-plastic film layer 111 and the lower aluminum-plastic film layer 112 and is formed in a cylindrical shape as a whole, and the cavity is filled with electrolyte. The upper aluminum plastic film layer 111 and the lower aluminum plastic film layer 112 are wrapped around each other and the edges of the upper aluminum plastic film layer 111 and the lower aluminum plastic film layer 112 are connected by hot pressing, so that the connection between the two is more tightly used for Hold electrolyte. The upper surface of the end of the first tab 12 is adhesively connected to the upper aluminum plastic film layer 111 through the tab glue 14; the lower surface of the end of the first tab 12 is adhesively connected to the lower aluminum plastic film layer 112 through the tab glue 14 so that The first tab 12 is adhesively connected to the upper aluminum plastic film layer 111 and the lower aluminum plastic film layer 112 and at the same time plays an insulating role. The upper surface of the end of the second tab 13 is adhesively connected to the upper aluminum plastic film layer 111 by the tab glue 14; the lower surface of the end of the second tab 13 is adhesively connected to the lower aluminum plastic film layer 112 by the tab glue 14 so that The second tab 13 is adhesively connected to the upper aluminum plastic film layer 111 and the lower aluminum plastic film layer 112 and simultaneously plays an insulating role. The electrolyte is loaded into the soft-pack battery body 11 to prevent the risk of the battery leaking electrolyte; if the battery diameter is 12mm and the battery height is 5.4mm, the battery capacity can reach 50mAh; the battery diameter is 14mm When the battery height is 5.4mm, the battery capacity can reach 65mAh; the battery diameter is 10mm, and when the battery height is 5.4mm, the battery capacity can reach 40mAh.

For a battery containing a soft-packed battery cell of the present invention, please refer to the related drawings in FIGS. 1 to 5. On the basis of the foregoing technical solution, the lower cover 3 may be a metal layer or a plastic layer. An electromagnetic shielding material is added in the layer, or an anti-electric shielding paint is sprayed on the plastic layer. In this way, the lower cover 3 is a metal layer, and the metal layer can play a role in reducing electromagnetic interference signals, and will not cause electromagnetic interference to products using the battery, thereby improving product quality and user experience. Or the lower cover is a plastic layer, in which an electromagnetic shielding material is added, and the plastic layer can reduce the effect of electromagnetic interference signals. Or coating anti-electric shielding paint on the outer peripheral surface of the plastic layer can prevent electromagnetic interference.

For a battery containing a soft-packed battery cell of the present invention, please refer to the related drawings in FIGS. 1 to 5. On the basis of the foregoing technical solution, the upper surface of the first pole ear 12 and the second pole may also be: An insulator is adhered to the upper surface of the ear 13. In this way, the insulator has insulating properties, and the insulator is adhered to the upper surface of the first tab 12 and the upper surface of the second tab 13. The insulator on the first tab 12 prevents the first tab 12 from puncturing the soft-cell body 11 The lower part reduces the leakage of electrolyte and the risk of leakage. The insulator on the second tab 13 prevents the second tab 13 from piercing the upper portion of the soft-packed cell body 11 to reduce the leakage of electrolyte and the risk of leakage. If the battery is used in wearable products such as headphones and audio, the risk of leakage of the battery can be reduced, and the safe use of the battery can be improved. The insulator is installed on the upper surfaces of the first tab 12 and the second tab 13 and the flexible cell body 11. More preferably, the insulator is a high-temperature adhesive, wherein the high-temperature adhesive not only plays a good insulating performance, but also can prevent the first tab 12 and the second tab 13 from puncturing the soft-packed battery 1 and reduce the leakage of electrolyte And reduce the risk of leakage.

For a battery containing a soft-packed battery cell of the present invention, please refer to the related drawings in FIGS. 1 to 5. On the basis of the foregoing technical solution, the bottom of the soft-packed battery body 11 may be double-sided tape 6 or Glue is attached to the inner bottom of the lower cover 3. In this way, the double-sided adhesive 6 or glue improves the stability between the bottom of the soft-pack battery core body 11 and the inner bottom of the lower cover 3. At the same time, double-sided adhesive 6 or glue is low in cost and easy to obtain.

The above only describes several specific embodiments of the present invention, but it does not serve as the scope of protection 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 It is considered to fall within the protection scope of the present invention.

Claims

A battery containing a soft-packed battery cell, characterized by comprising a soft-packed battery core (1), an electromagnetic shielding sheet (2) and a lower cover (3), the soft-packed battery core (1) includes a soft-packed battery core A body (11), a first pole ear (12) and a second pole ear (13), the first pole ear (12) and the second pole ear (13) are located in the soft-packed cell body (11 ) The outer periphery and its free end extend outwards, the electromagnetic shielding sheet (2) is adhered to the upper surface of the soft-packed cell body (11), the first tab (12) and the second pole The ears (13) all bend and extend above the upper surface of the electromagnetic shielding sheet (2), and the bottom of the soft-packed battery core body (11) is glued to the inner bottom surface of the lower cover (3).
The battery containing a soft-packed battery core according to claim 1, wherein the electromagnetic shielding sheet (2) and the lower cover (3) are sealed and filled with an injection molding adhesive layer (4).
A battery with a soft-packed battery core according to claim 1 or 2, characterized in that: a heat-shrinkable sleeve (5) made of heat-shrinkable material is sleeved on the lower cover (3), so The free ends of the first pole ear (12) and the second pole ear (13) protrude upward from the heat shrinkable sleeve (5).
The battery with a soft-packed battery core according to claim 3, wherein the heat shrinkable sleeve (5) is made of polyvinyl chloride, polyethylene or PET material.
A battery containing a soft-packed battery cell according to claim 1 or 2, wherein the first tab (12) and the second tab (13) are separated from the soft-packed battery body (11) The upper or middle or lower part of the outer periphery extends outward.
The battery containing a soft-packed battery cell according to claim 1 or 2, wherein the soft-packed battery cell body (11) is cylindrical or square, and the soft-packed battery cell (1) is provided inside There is a winding member wound in the center, the ends of the first tab (12) and the second tab (13) are fixedly connected to the winding member, the first tab (12) ) And the upper and lower surfaces of the second tab (13) are fixedly connected to the outer periphery of the soft-packed cell body (11) through the tab glue (14) and radially from the outer periphery of the soft-packed cell body (11) Extend outward.
The battery with a soft-packed battery core according to claim 6, characterized in that the soft-packed battery body (11) includes an upper aluminum plastic film layer (111), a lower aluminum plastic film layer (112) and Electrolyte, the upper aluminum plastic film layer (111) and the edge of the lower aluminum plastic film layer (112) are fixedly connected by sealing hot pressing, and the electrolyte is located on the upper aluminum plastic film layer (111) and The lower aluminum-plastic film layer (112) surrounds the formed cavity, and the upper and lower surfaces of the end of the first tab (12) are bonded to the upper aluminum-plastic film layer (111) through the tab glue (14) ) And the lower aluminum plastic film layer (112).
The battery with a soft-packed battery core according to claim 1 or 2, wherein the lower cover (3) is a metal layer or a plastic layer, and an electromagnetic shielding material is added in the plastic layer, or An anti-electric shielding paint is sprayed on the plastic layer.
The battery with a soft-packed battery cell according to claim 1 or 2, wherein the upper surface of the first tab (12) and the upper surface of the second tab (13) are bonded Insulator.
The battery with a soft-packed battery core according to claim 1 or 2, wherein the bottom of the soft-packed battery body (11) is adhered to the lower cover by double-sided adhesive (6) or glue (3) Inside bottom.