WO2020156061A1 - 一种含软包电芯的电池 - Google Patents

一种含软包电芯的电池 Download PDF

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Publication number
WO2020156061A1
WO2020156061A1 PCT/CN2020/070765 CN2020070765W WO2020156061A1 WO 2020156061 A1 WO2020156061 A1 WO 2020156061A1 CN 2020070765 W CN2020070765 W CN 2020070765W WO 2020156061 A1 WO2020156061 A1 WO 2020156061A1
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WO
WIPO (PCT)
Prior art keywords
tab
soft
packed
protective plate
battery
Prior art date
Application number
PCT/CN2020/070765
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English (en)
French (fr)
Inventor
李良彬
肖海燕
刘晓伟
吴洪枫
吴健
张国超
董水金
Original Assignee
新余赣锋电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 新余赣锋电子有限公司 filed Critical 新余赣锋电子有限公司
Publication of WO2020156061A1 publication Critical patent/WO2020156061A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the utility model relates to a battery, in particular to a battery containing a soft pack electric core.
  • Some of the existing button batteries have electrolyte in the steel shell, and the structure has the risk of leaking, and the electrolyte may corrode the steel shell, causing the steel shell to become thinner and leaking, and safety is reduced. There is a risk of short circuit inside this type of battery, which may cause the battery to bulge, swell, heat, etc. Because this type of battery is often used in wearable products such as earphones, and it is in direct contact with the human body. Once the above phenomenon occurs, it will often cause great harm to the human body. , A safety incident occurred.
  • the utility model is completed in order to solve the deficiencies in the prior art.
  • the purpose of the utility model is to provide a battery containing soft-packed cells.
  • the advantage of the utility model is that the battery overcharge can be controlled by setting a protective plate and electrical components.
  • Over-discharge and over-current have the functions of short-circuit protection and temperature protection; reduce electromagnetic interference signals, reduce electromagnetic interference to products using the battery, improve product quality and user experience; there is no risk of electrolyte leakage, Reduce safety hazards such as battery short circuit.
  • the utility model relates to a battery containing a soft-packed battery, which includes a soft-packed battery, an electromagnetic shielding sheet, a lower cover, an injection molding glue layer and a protective plate.
  • the bottom of the soft-packed battery body is glued to the inside of the lower cover
  • the soft-pack battery core includes a soft-pack battery core body, a first tab and a second tab, the first tab and the second tab are located on the outer periphery of the soft-pack battery core
  • the free end extends outward, the electromagnetic shielding sheet is glued to the upper surface of the soft-packed battery core body, the injection molding glue layer is sealed and filled on the electromagnetic shielding sheet and the lower cover, and the protective plate is fixed
  • the protective plate is fixed
  • the protective plate is fixedly connected with a positive lead and
  • the battery of the utility model containing soft-packed cells can also be:
  • the protective plate is provided with insertion holes, the first tab and the second tab are respectively inserted into the corresponding insertion holes, and the free ends of the first tab and the second tab It is fixedly connected to the surface of the protection board.
  • the protection board is a flexible circuit board or a glass fiber epoxy copper clad laminate.
  • An insulating layer is adhered on the surface of the protective board, and the free ends of the first tab and the second tab are adhered to the lower surface of the insulating layer.
  • a heat shrinkable sleeve made of heat shrinkable material is sleeved on the edges of the lower cover and the protective plate.
  • the heat shrinkable sleeve is made of polyvinyl chloride or polyethylene or PET material.
  • the first tab and the second tab extend outward from the upper part or the middle part or the lower part of the outer periphery of the soft-packed battery core body.
  • the body of the soft-packed battery core is cylindrical or square, a winding piece wound around the center is arranged in the soft-packed battery core, and the ends of the first tab and the second tab are both fixedly connected to On the winding member, the upper and lower surfaces of the first tab and the second tab are fixedly connected to the outer periphery of the soft-packed battery core body by a tab glue, and radially from the outer periphery of the soft-packed battery core body. Extend outward.
  • the soft-pack battery core body includes an upper aluminum-plastic film layer, a lower aluminum-plastic film layer and an electrolyte, and 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 the cavity formed by the upper aluminum-plastic film layer and the lower aluminum-plastic film layer, and the upper and lower surfaces of the end of the first tab are bonded to the upper aluminum-plastic film layer by tab glue And the lower aluminum plastic film layer.
  • the lower cover is a metal layer.
  • the utility model relates to a battery containing a soft-packed battery, which includes a soft-packed battery, an electromagnetic shielding sheet, a lower cover, an injection molding glue layer and a protective plate.
  • the bottom of the soft-packed battery body is glued to the inside of the lower cover
  • the soft-pack battery core includes a soft-pack battery core body, a first tab and a second tab, the first tab and the second tab are located on the outer periphery of the soft-pack battery core
  • the free end extends outward, the electromagnetic shielding sheet is glued to the upper surface of the soft-packed battery core body, the injection molding glue layer is sealed and filled in the electromagnetic shielding sheet and the lower cover, and the protective plate is fixed
  • the protective plate is fixed
  • the protective plate is fixedly connected with a positive lead and
  • the first tab on the soft-packed battery cell is a positive electrode or a negative electrode
  • the second tab is a negative electrode or a positive electrode
  • the positive or negative electrode settings of the first tab and the second tab are set according to actual conditions.
  • the soft-packed battery cell includes a soft-packed battery core body, a first tab and a second tab.
  • the first tab and the second tab are located on the outer periphery of the soft-packed cell body.
  • the free end of the first tab and the second tab are free The ends extend radially outward from the outer circumference of the soft-packed battery core body.
  • the first tab and the second tab can be set symmetrically or asymmetrically, and the specific positions of the first tab and the second tab can be set according to actual conditions.
  • the length setting of the first tab and the second tab is set according to the actual situation.
  • the body of the soft-packed battery cell can have any shape as long as it can be installed inside the lower cover.
  • the electromagnetic shielding sheet plays a role of anti-interference and shielding. By setting the electromagnetic shielding sheet to wrap the upper surface of the soft-packed cell body, the soft-packed cell body is sleeved in the lower cover, which will not generate electromagnetic interference signals and will not cause electromagnetic interference to products using the battery, improving product quality and user use Experience.
  • the first tab and the second tab are turned or bent toward the upper surface of the electromagnetic shielding sheet.
  • the specific flipping or bending method of the first tab and the second tab is not limited, as long as the first tab and the second tab can be completed.
  • the free end of the dipole ear can be located above the electromagnetic shielding sheet.
  • the injection molding glue layer is filled into the electromagnetic shielding sheet and the lower cover by a low-pressure injection molding machine, so that the injection molding glue layer can seal the soft-packed batteries.
  • the protective plate is fixedly connected to the plastic injection layer, and the connection can be other connection methods.
  • the first tab and the second tab are bent and extended from the upper surface of the electromagnetic shielding sheet and the injection molding rubber layer. After the free ends of the first tab and the second tab pass through the protective plate, they extend upward and bend and are fixedly connected to the protective plate.
  • the positive wire and the negative wire are fixedly connected to the protective plate, and the connection can be other connection methods.
  • the free ends of the positive lead and negative lead are connected to the desired product.
  • Electrical components are fixedly connected to the protection board, and the connection can be other connection methods. There can be one or more electrical components, which can be set according to actual conditions. Electrical components include, but are not limited to, integrated circuits, field effect transistors (MOSFETs), capacitors, resistors, etc.
  • the electrical components can provide overcharge protection detection and overdischarge protection detection.
  • the overcharge protection detection voltage component After charging and the voltage reaches a predetermined value, the overcharge protection detection voltage component will shut off the circuit and can no longer be recharged to prevent the soft-pack battery cell voltage from being too high, damaging the soft-pack battery cell, and causing explosion and fire. After discharging and the voltage reaches a predetermined value, the over-discharge protection detection voltage component turns off the circuit and can no longer discharge, preventing damage to the soft-packed cell. Electrical components can also provide other protection functions according to design requirements, such as temperature protection, short-circuit protection, over-current protection, etc.
  • the first tab and the second tab are fixedly connected to the protection board, so that the electricity on the cell is conducted to the protection board, and the positive wire and the negative wire are fixedly connected to the protection board, so that the positive wire and the negative wire are also electrically connected.
  • a protection board is set on the plastic injection layer.
  • the electrical components on the protection board can be used to control the current and voltage of the battery. When the current or voltage does not meet the set requirements, the circuit will be automatically cut off. Electrical components can also provide other protection functions according to design requirements, such as temperature protection, short-circuit protection, over-current protection, etc.
  • the soft-packed battery core is inserted and bonded to the inner surface of the lower cover; the electromagnetic shielding sheet covers the soft-packed battery On the upper surface of the core, bend the first tab and the second tab; the low-pressure injection molding machine is used to inject rubber to form an injection molded rubber layer.
  • the injection molded rubber layer is filled into the electromagnetic shielding sheet and the lower cover, so that the injection molded rubber layer can seal the soft package.
  • a battery containing a soft-packed battery cell of the present invention has the advantages of providing the battery with overcharging, overdischarging and overcurrent protection by providing a protective plate and electrical components. Temperature protection and other functions; reduce the generation of electromagnetic interference signals, reduce electromagnetic interference to products using the battery, improve product quality and user experience; there will be no risk of electrolyte leakage, and reduce potential safety hazards such as battery short circuit.
  • Figure 1 is an exploded schematic diagram of a battery containing soft-packed batteries according to the utility model.
  • Figure 2 is a schematic cross-sectional view of a battery with soft-packed batteries according to the present invention.
  • Figure 3 is a schematic diagram of a soft-packed battery cell in a battery containing soft-packed batteries according to the present invention.
  • Soft pack battery cell 11. Soft pack cell body; 111, upper aluminum plastic film layer; 112, lower aluminum plastic film layer; 113, electrolyte; 12. first tab; 13, second tab; 2. Electromagnetic shielding sheet; 3. Lower cover; 4. Plastic injection layer; 5. Protective plate; 51. Positive wire; 52. Negative wire; 53, Insertion hole; 54. Electrical components; 6. Insulation layer; 7. Heat Shrink the casing.
  • the soft-packed cell body 11 is glued to the inner bottom surface of the lower cover 3.
  • the soft-packed cell body 1 includes a soft-packed 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 soft-packed cell body 11 and the free ends thereof extend outward, and the electromagnetic shielding sheet 2 is adhered to the upper surface of the soft-packed cell body 11
  • the injection molding glue layer 4 is sealed and filled in the electromagnetic shielding sheet 2 and the lower cover 3
  • the protective plate 5 is fixedly connected to the injection molding glue layer 4
  • the first tab 12 and the The second tabs 13 are bent and extended above the upper surface of the electromagnetic shielding sheet 2 and the injection molding layer 4, and the free ends of the first tabs 12 and the second tabs 13 are penetrated and fixedly connected
  • a positive lead 51 and a negative lead 52 are fixedly connected to the protective plate 5
  • at least one electrical component 54 is fixedly connected to the protective plate 5.
  • the first tab 12 on the soft battery cell 1 is a positive electrode or a negative electrode
  • the second tab 13 is a negative electrode or a positive electrode
  • the positive or negative electrode settings of the first tab 12 and the second tab 13 are set according to actual conditions.
  • the soft pack cell 1 includes a soft pack 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 periphery of the soft pack cell body 11, and the first tab 12 The free end and the free end of the second tab 13 extend radially outward from the outer circumference of the soft-packed cell body 11.
  • the first tab 12 and the second tab 13 can be arranged symmetrically or asymmetrically.
  • the specific positions of the first tab 12 and the second tab 13 can be set according to actual conditions.
  • the length settings of the first tab 12 and the second tab 13 are set according to actual conditions.
  • the soft-packed battery core body 11 can 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. By setting the electromagnetic shielding sheet 2 to wrap the upper surface of the soft-packed cell body 11, and the soft-packed cell body 11 is sleeved in the lower cover 3, electromagnetic interference signals will not be generated, and electromagnetic interference will not be generated to products using the battery, which improves the product Quality and user experience.
  • the first tab 12 and the second tab 13 face the upper surface of the electromagnetic shielding sheet 2 by turning or bending.
  • the specific flipping or bending method of the first tab 12 and the second tab 13 is not limited, as long as it can be completed.
  • the free ends of the first tab 12 and the second tab 13 are just above the electromagnetic shielding sheet 2.
  • the injection rubber 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 rubber layer 4 can seal the soft-packed cell 1. By setting the low-pressure injection molding machine to inject and fill the injection molding layer 4, there will be no safety hazards such as leakage of electrolyte 113, short circuit, etc., which may cause the battery to bulge, swell, and heat.
  • the protective plate 5 is fixedly connected to the plastic injection layer 4, and the connection may be other connection methods.
  • the first tab 12 and the second tab 13 are bent and extended from the upper surface of the electromagnetic shielding sheet 2 and the injection molding layer 4. After the free ends of the first tab 12 and the second tab 13 penetrate the protective plate 5, they extend upward and bend and are fixedly connected to the protective plate 5.
  • the positive wire 51 and the negative wire 52 are fixedly connected to the protective plate 5, and the connection may be other connection methods. The free ends of the positive lead 51 and the negative lead 52 are connected to the desired product.
  • An electrical component 54 is fixedly connected to the protection board 5, and the connection thereof can be in other connection methods. There can be one or more electrical components 54 and can be set according to actual conditions.
  • the electrical components 54 include but are not limited to integrated circuits, field effect transistors (MOS transistors), capacitors and resistors, etc.
  • the electrical components 54 can provide overcharge protection detection and overdischarge protection detection. After charging and the voltage reaches a predetermined value, the overcharge protection detection voltage component will shut off the circuit and can no longer be charged to prevent the soft-pack battery cell 1 from being too high voltage, damaging the soft-pack battery cell 1, causing explosion and fire. After discharging and the voltage reaches a predetermined value, the over-discharge protection detection voltage component turns off the circuit and can no longer discharge, preventing the soft-packed cell 1 from being damaged.
  • the electrical component 54 can also provide other protection functions according to design requirements, such as temperature protection, short circuit protection, and overcurrent protection.
  • the first tab 12 and the second tab 13 are fixedly connected to the protective plate 5, so that the electricity on the soft-packed cell 1 is conducted to the protective plate 5.
  • the positive lead 51 and the negative lead 52 are fixedly connected to the protective plate 5.
  • the positive electrode lead 51 and the negative electrode lead 52 are also formed with electricity.
  • the plastic injection layer 4 is provided with a protection board 5, and the electrical components 54 on the protection board 5 can be used to control the current and voltage of the battery. When the current or voltage does not meet the set requirements, the circuit will be automatically cut off.
  • the soft-pack battery 1 is put in and glued to the inner surface of the lower cover 3; the electromagnetic shielding sheet 2 wraps the upper surface of the soft-pack battery 1 and bends the first tab 12 and the second tab 13;
  • the injection molding machine injection molding compound to form the injection molding layer 4 is filled into the electromagnetic shielding sheet 2 and the lower cover 3, so that the injection molding layer 4 can seal the soft package cell 1; insert the protective plate 5, and the first pole
  • the ear 12 and the second tab 13 pass through the protective plate 5, and the free ends of the first tab 12 and the second tab 13 are fixedly connected to the upper surface of the protective plate 5, and the protective plate 5 is just fixedly connected in the lower cover 3;
  • the positive lead 51 and the negative lead 52 are fixedly connected to the protective plate 5, and at least one electrical component 54 is fixedly connected to the upper surface of the protective plate 5 at the same time.
  • the battery containing soft-packed cells of the present invention has the advantage that by providing the protective plate 5 and the electrical components 54, it can provide the battery with overcharge, overdischarge and overcurrent, and short circuit. Protection, temperature protection and other functions; reduce the generation of electromagnetic interference signals, reduce electromagnetic interference to products using the battery, improve product quality and user experience; there will be no risk of leakage of electrolyte 113, and reduce battery short circuit and other safety hazards .
  • the injection rubber layer 4 is formed by a mold on an injection molding machine, and an escape groove is provided on the injection rubber layer 4, and the escape groove is used to avoid the bending position of the first lug 12 and the bending of the second lug 13 s position.
  • an insertion hole 53 is opened on the protective plate 5.
  • the first tab 12 and the second tab 13 are respectively inserted into the corresponding insertion holes 53, and the free ends of the first tab 12 and the second tab 13 are fixedly connected to the protection plate 5 on the surface.
  • the protection plate 5 is provided with an insertion hole 53, and the shape of the insertion hole 53 can be set according to the shape of the first tab 12 and the second tab 13.
  • the first tab 12 and the second tab 13 are inserted into the corresponding insertion holes 53 on the protection plate 5 to facilitate the extension of the first tab 12 and the second tab 13, and also define the first tab 12 and the second tab.
  • the free end of the dipole ear 13 is fixedly connected to the protection board 5. More preferably, the insertion hole 53 may be an arc groove or a square shape.
  • the protective board 5 is a flexible circuit board or glass fiber epoxy Resin copper clad laminate.
  • flexible circuit boards also known as "FPC flexible boards” are printed circuits made of flexible insulating substrates, and have many advantages that rigid printed circuit boards do not have.
  • the flexible circuit board can be freely bent, wound, and folded, and can be arbitrarily arranged according to the space layout requirements, and can be moved and stretched arbitrarily in three-dimensional space, so as to achieve the integration of component assembly and wire connection.
  • the upper surface of the protective plate 5 is bonded with an insulating layer 6 ,
  • the free ends of the first tab 12 and the second tab 13 are bonded to the lower surface of the insulating layer 6.
  • the insulating layer 6 is bonded to the protective plate 5 and also to the electrical component 54, the positive lead 51, the negative lead 52, the first tab 12 and the second tab 13.
  • the free ends of the positive electrode lead 51 and the negative electrode lead 52 protrude from the insulating layer 6.
  • the insulating layer 6 can play a role in preventing electricity, water and dust.
  • the insulating layer 6 is a part made of insulating material.
  • the lower cover 3 and the edge of the protective plate 5 are sleeved
  • a heat shrinkable sleeve 7 made of heat shrinkable material is provided.
  • the heat shrinkable sleeve 7 is sleeved on the outer circumference of the lower cover 3 and also sleeved on the edge of the protective plate 5 or the insulating layer 6.
  • the heat-shrinkable sleeve 7 is made of heat-shrinkable material, that is, it shrinks to wrap the edges of the lower cover 3, the protective plate 5 or the insulating layer 6 after being heated.
  • the heat shrinkable sleeve 7 is made of polyvinyl chloride, polyethylene or PET. In this way, the heat-shrinkable sleeve 7 made of polyvinyl chloride, polyethylene or PET is easy to heat and shrink.
  • the battery of the present invention contains a soft-packed battery cell. Please refer to the related figures of Figures 1 to 3. On the basis of the previous technical solutions, it can also be: the first tab 12 and the second tab 13 extends outward from the upper part or the middle part or the lower part of the outer circumference of the soft-packed cell body 11. In this way, the first tab 12 and the second tab 13 extend radially outward from the upper part or the middle part or the lower part of the outer periphery of the soft-packed cell body 11, that is, according to the different needs of the soft-packed cell 1, select the ones in different positions The soft-packed battery cell 1 of the first tab 12 and the second tab 13.
  • the soft-packed battery body 11 may be cylindrical or square.
  • the soft-packed battery core 1 is provided with a winding member wound at the center, the ends of the first tab 12 and the second tab 13 are fixedly connected to the winding member, and the Both the upper and lower surfaces of one tab 12 and the second tab 13 are fixedly connected to the outer periphery of the soft-packed cell body 11 by tab glue and extend radially outward from the outer periphery of the soft-packed cell body 11.
  • the outer shape of the soft-pack battery core body 11 is cylindrical, which can fit the shape of the lower cover 3, saving space.
  • the shape of the soft-packed battery core body 11 can be square, and the soft-packed battery core 1 can be placed in the cover 3, and the shape can be set according to actual conditions.
  • the free end of the first tab 12 and the free end of the second tab 13 protrude from the winding member arranged inside the soft-packed cell body 11.
  • the first tab 12 and the second tab 13 can be symmetrically arranged from the coil
  • the winding piece extends on both sides, and it can also be arranged asymmetrically.
  • the winding member is wound around the inside of the soft-packed cell body 11, and is formed by winding the positive pole piece, the diaphragm and the negative pole piece.
  • the diaphragm plays a role in preventing the positive pole piece and the negative pole piece from being short-circuited.
  • 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 communication between the soft-packed battery cell 1 and other parts. connection.
  • the upper and lower surfaces of the first tab 12 protruding from the center of the soft-packed battery core body 11 are bonded with tab glue.
  • the upper and lower surfaces of the tab have adhesiveness.
  • the first tab 12 is glued by the tab It is connected to the upper or middle or lower part of the soft-packed cell body 11 and extends outward from the outer periphery of the soft-packed cell body 11; the second tab 13 is glued to the upper or middle or lower part of the soft-packed cell body 11 through tab glue.
  • the soft pack battery body 11 includes an upper aluminum plastic film layer 111, a lower aluminum plastic film layer 112 and an electrolyte 113, the upper aluminum plastic film layer 111 and the lower aluminum plastic film layer The edges of 112 are fixedly connected by sealing and hot pressing.
  • the electrolyte 113 is located in the cavity formed by the upper aluminum plastic film layer 111 and the lower aluminum plastic film layer 112.
  • the end of the first tab 12 The upper and lower surfaces are both bonded to the upper aluminum plastic film layer 111 and the lower aluminum plastic film layer 112 by tab glue. In this way, a cavity is formed between the upper aluminum-plastic film layer 111 and the lower aluminum-plastic film layer 112 and the whole is cylindrical, and the cavity is filled with electrolyte 113.
  • the upper aluminum plastic film layer 111 and the lower aluminum plastic film layer 112 are wrapped with 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 closer and used The electrolyte 113 is accommodated.
  • the upper surface of the end of the first lug 12 is adhesively connected to the upper aluminum plastic film layer 111 through lug glue; the lower surface of the end of the first lug 12 is adhesively connected to the lower aluminum plastic film layer 112 through lug glue, so that the first The 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 functions as an insulation.
  • the upper surface of the end of the second tab 13 is bonded and connected to the upper aluminum-plastic film layer 111 through tab glue; the lower surface of the end of the second tab 13 is bonded to the lower aluminum-plastic film layer 112 through tab glue, so that the second The tabs 13 are adhesively connected to the upper aluminum plastic film layer 111 and the lower aluminum plastic film layer 112 and at the same time serve as insulation.
  • Putting the electrolyte 113 into the soft-pack battery cell body 11 can prevent the battery from leaking electrolyte 113; if the battery diameter is 12mm and the battery height is 5.4mm, the battery capacity can reach 50mAh; the battery diameter When the battery height is 14mm and the battery height is 5.4mm, the battery capacity can reach 65mAh; when the battery diameter is 10mm and the battery height is 5.4mm, the battery capacity can reach 40mAh.
  • the lower cover 3 is a metal layer.
  • 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.

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  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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Abstract

一种含软包电芯(1)的电池，软包电芯本体(11)底部粘设于下盖(3)内侧底表面，第一极耳(12)和第二极耳(13)位于软包电芯本体(11)外周且其自由端向外延伸，电磁屏蔽片(2)粘设于软包电芯本体(11)上表面上，注塑胶层(4)密封填充于电磁屏蔽片(2)和下盖(3)内，保护板(5)固定连接于注塑胶层(4)上，第一极耳(12)和第二极耳(13)均弯折延伸出电磁屏蔽片(2)和注塑胶层(4)上表面上方，第一极耳(12)和第二极耳(13)自由端穿设且固定连接于保护板(5)上，保护板(5)上固定连接有正极导线(51)和负极导线(52)，保护板(5)上固定连接有至少一个电器元件(54)。一种含软包电芯(1)的电池通过设置保护板(5)和电器元件(54)可以避免电池过充、过放和过流，有短路保护、温度保护的功能；减小产生电磁干扰信号；不会有漏电解液风险，降低电池短路风险。

Description

一种含软包电芯的电池 技术领域
本实用新型涉及一种电池，特别是涉及一种含软包电芯的电池。
背景技术
现有部分纽扣电池是钢壳内有电解液，其结构有漏液的风险，而且电解液有可能腐蚀钢壳，导致钢壳变薄漏液，安全性降低。该类电池内部会有短路的风险，导致电池起鼓，膨胀，发热等，由于该类电池常用于穿戴产品上如耳机，与人体直接接触，一旦出现上述现象，往往会对人体产生较大伤害，出现安全事故。
电池中没有保护装置，充电或放电过程中，对电池容易损坏，同时可能导致电池起火爆炸等。
发明内容
本实用新型是为了解决现有技术中的不足而完成的，本实用新型的目的是提供一种含软包电芯的电池，其优点是通过设置保护板和电器元件，可以控制电池过充，过放和过流，有短路保护，温度保护的功能；减小产生电磁干扰信号，减小对使用该电池的产品产生电磁干扰，提高产品质量和用户使用体验；不会有漏电解液风险，降低电池短路等安全隐患。
本实用新型的一种含软包电芯的电池，包括软包电芯、电磁屏蔽片、下盖、注塑胶层和保护板，所述软包电芯本体底部粘设于所述下盖内侧底表面，所述软包电芯包括软包电芯本体、第一极耳和第二极耳，所述第一极耳和所述第二极耳位于所述软包电芯本体外周且其自由端向外延伸，所述电磁屏蔽片粘设于所述软包电芯本体上表面上，所述注塑胶层密封填充于所述电磁屏蔽片和所述下盖上，所述保护板固定连接于所述注塑胶层上，所述第一极耳和所述第二极 耳均弯折延伸出所述电磁屏蔽片和所述注塑胶层上表面上方，所述第一极耳和所述第二极耳自由端穿设且固定连接于所述保护板上，所述保护板上固定连接有正极导线和负极导线，所述保护板上固定连接有至少一个电器元件。
本实用新型的一种含软包电芯的电池还可以是：
所述保护板上开设有插入孔，所述第一极耳和所述第二极耳分别穿设于对应的所述插入孔内，所述第一极耳和所述第二极耳自由端固定连接于所述保护板上表面上。
所述保护板为柔性电路板或玻璃纤维环氧树脂覆铜板。
所述保护板上表面上粘接有绝缘层，所述第一极耳和所述第二极耳自由端粘接于所述绝缘层下表面上。
所述下盖和所述保护板边缘上套设有可热缩材料制成的热缩套管。
所述热缩套管由聚氯乙烯或聚乙烯或PET材料制成。
所述第一极耳和所述第二极耳从所述软包电芯本体外周上部或者中部或下部向外延伸。
所述软包电芯本体呈圆柱状或方形，所述软包电芯内设置有卷设于中心的卷绕件，所述第一极耳和所述第二极耳端部均固定连接于所述卷绕件上，所述第一极耳和所述第二极耳上下表面均通过极耳胶固定连接于所述软包电芯本体外周且从所述软包电芯本体外周径向向外延伸。
所述软包电芯本体包括上铝塑膜层、下铝塑膜层和电解液，所述上铝塑膜层和所述下铝塑膜层边缘之间通过密封热压固定连接，所述电解液位于所述上铝塑膜层和所述下铝塑膜层围设形成的腔体内，所述第一极耳端部上下表面均通过极耳胶粘接于所述上铝塑膜层和所述下铝塑膜层上。
所述下盖为金属层。
本实用新型的一种含软包电芯的电池，包括软包电芯、电磁屏蔽片、下盖、注塑胶层和保护板，所述软包电芯本体底部粘设于所述下盖内侧底表面，所述软包电芯包括软包电芯本体、第一极耳和第二极耳，所述第一极耳和所述第二极耳位于所述软包电芯本体外周且其自由端向外延伸，所述电磁屏蔽片粘设于所述软包电芯本体上表面上，所述注塑胶层密封填充于所述电磁屏蔽片和所述 下盖内，所述保护板固定连接于所述注塑胶层上，所述第一极耳和所述第二极耳均弯折延伸出所述电磁屏蔽片和所述注塑胶层上表面上方，所述第一极耳和所述第二极耳自由端穿设且固定连接于所述保护板上，所述保护板上固定连接有正极导线和负极导线，所述保护板上固定连接有至少一个电器元件。这样，软包电芯本体底部粘设在下盖内部底表面，能将软包电芯安装在下盖内部。软包电芯上的第一极耳为正极或负极，第二极耳为负极或正极，第一极耳和第二极耳正极或负极设置根据实际情况进行设定。软包电芯包括软包电芯本体、第一极耳和第二极耳，第一极耳和第二极耳位于软包电芯本体外周，第一极耳自由端和第二极耳自由端从软包电芯本体外周径向向外延伸。第一极耳和第二极耳可以对称设置，也可以不对称设置，第一极耳和第二极耳的具体位置设定，可以根据实际情况进行设定。第一极耳和第二极耳的长度设置根据实际情况进行设定。软包电芯本体可以为任意形状，只要能安装在下盖内部即可。电磁屏蔽片起到抗干扰和屏蔽作用。通过设置电磁屏蔽片包裹住软包电芯本体上表面，软包电芯本体套在下盖内，不会产生电磁干扰信号，不会对使用该电池的产品产生电磁干扰，提高产品质量和用户使用体验。第一极耳和第二极耳通过翻转或者弯折方式朝向电磁屏蔽片上表面上，其中第一极耳和第二极耳具体翻转或者弯折方式没有限定，只要能完成第一极耳和第二极耳自由端位于电磁屏蔽片上方即可。通过低压注塑机将注塑胶层填充到电磁屏蔽片和下盖内，使得注塑胶层能密封软包电芯。通过设置低压注塑机注塑且填充注塑胶层，不会有漏电解液，短路等安全隐患，导致的电池起鼓，膨胀，发热等。注塑胶层上固定连接保护板，其连接可以是其他连接方式。第一极耳和第二极耳从电磁屏蔽片和注塑胶层上表面弯折延伸。第一极耳和第二极耳自由端从保护板上穿出后，向上延伸弯折且固定连接于保护板上。保护板上固定连接正极导线和负极导线，其连接可以是其他连接方式。正极导线和负极导线自由端连接到所需产品上。保护板上固定连接有电器元件，其连接可以是其他的连接方式。电器元件可以为一个或者多个，可以根据实际情况进行设定。电器元件包括但不限于集成电路,场效应管(mos管),电容，电阻等，电器元件可以提供过充保护检测和过放保护检测等。在充电且电压达到预定值后，过充保护检测电压元件会使电路关 断，无法再充电进入，防止软包电芯电压太高，损坏软包电芯，导致爆炸起火等。在放电且电压达到预定值后，过放保护检测电压元件使电路关断，无法再放电，防止软包电芯损坏。电器元件还可以根据设计要求提供其他保护功能，如温度保护，短路保护，过流保护等。第一极耳和第二极耳固定连接在保护板上，使电芯上的电传导到保护板上，正极导线和负极导线固定连接在保护板上，使得正极导线和负极导线也形成有电。注塑胶层上设置保护板，保护板上的电器元件可以用于控制电池的电流和电压，当电流或电压不符合设定要求时，电路会自动切断。电器元件还可以根据设计要求提供其他保护功能，如温度保护，短路保护，过流保护等，安装时，软包电芯放入且粘接于下盖内部表面；电磁屏蔽片包住软包电芯上表面，折弯第一极耳和第二极耳；通过低压注塑机注塑胶料形成注塑胶层，注塑胶层填充到电磁屏蔽片和下盖内，使得注塑胶层能密封软包电芯；装入保护板，将第一极耳和第二极耳穿过保护板，进而将第一极耳和第二极耳自由端固定连接在保护板上表面上，保护板刚好固定连接在下盖内；将正极导线和负极导线固定连接在保护板上，同时也将至少一个电器元件固定连接在保护板上表面上。通过设置软包电芯能容纳电解液，防止电解液直接对金属壳体直接进行腐蚀，降低漏电解液风险。本发明的一种含软包电芯的电池，相对于现有技术而言具有的优点是：通过设置保护板和电器元件，可以为电池提供过充，过放和过流，有短路保护，温度保护等的功能；减小产生电磁干扰信号，减小对使用该电池的产品产生电磁干扰，提高产品质量和用户使用体验；不会有漏电解液风险，降低电池短路等安全隐患。
附图说明
图1本实用新型一种含软包电芯的电池爆炸示意图。
图2本实用新型一种含软包电芯的电池截面示意图。
图3本实用新型一种含软包电芯的电池中软包电芯示意图。
图号说明
1、软包电芯；11、软包电芯本体；111、上铝塑膜层；112、下铝塑膜层；113、电解液；12、第一极耳；13、第二极耳；2、电磁屏蔽片；3、下盖；4、 注塑胶层；5、保护板；51、正极导线；52、负极导线；53、插入孔；54、电器元件；6、绝缘层；7、热缩套管。
具体实施方式
下面结合附图的图1至图3对本实用新型的一种含软包电芯的电池作进一步详细说明。
本实用新型的一种含软包电芯的电池，请参考图1至图3相关各图，包括软包电芯1、电磁屏蔽片2、下盖3、注塑胶层4和保护板5，所述软包电芯本体11底部粘设于所述下盖3内侧底表面，所述软包电芯1包括软包电芯本体11、第一极耳12和第二极耳13，所述第一极耳12和所述第二极耳13位于所述软包电芯本体11外周且其自由端向外延伸，所述电磁屏蔽片2粘设于所述软包电芯本体11上表面上，所述注塑胶层4密封填充于所述电磁屏蔽片2和所述下盖3内，所述保护板5固定连接于所述注塑胶层4上，所述第一极耳12和所述第二极耳13均弯折延伸出所述电磁屏蔽片2和所述注塑胶层4上表面上方，所述第一极耳12和所述第二极耳13自由端穿设且固定连接于所述保护板5上，所述保护板5上固定连接有正极导线51和负极导线52，所述保护板5上固定连接有至少一个电器元件54。这样，软包电芯本体11底部粘设在下盖3内部底表面，能将软包电芯1安装在下盖3内部。软包电芯1上的第一极耳12为正极或负极，第二极耳13为负极或正极，第一极耳12和第二极耳13正极或负极设置根据实际情况进行设定。软包电芯1包括软包电芯本体11、第一极耳12和第二极耳13，第一极耳12和第二极耳13位于软包电芯本体11外周，第一极耳12自由端和第二极耳13自由端从软包电芯本体11外周径向向外延伸。第一极耳12和第二极耳13可以对称设置，也可以不对称设置，第一极耳12和第二极耳13的具体位置设定，可以根据实际情况进行设定。第一极耳12和第二极耳13的长度设置根据实际情况进行设定。软包电芯本体11可以为任意形状，只要能安装在下盖3内部即可。电磁屏蔽片2起到抗干扰和屏蔽作用。通过设置电磁屏蔽片2包裹住软包电芯本体11上表面，软包电芯本体11套在下盖3内，不会产生电磁干扰信号，不会对使用该电池的产品产生电磁干扰，提高产 品质量和用户使用体验。第一极耳12和第二极耳13通过翻转或者弯折方式朝向电磁屏蔽片2上表面上，其中第一极耳12和第二极耳13具体翻转或者弯折方式没有限定，只要能完成第一极耳12和第二极耳13自由端位于电磁屏蔽片2上方即可。通过低压注塑机将注塑胶层4填充到电磁屏蔽片2和下盖3内，使得注塑胶层4能密封软包电芯1。通过设置低压注塑机注塑且填充注塑胶层4，不会有漏电解液113，短路等安全隐患，导致的电池起鼓，膨胀，发热等。注塑胶层4上固定连接保护板5，其连接可以是其他连接方式。第一极耳12和第二极耳13从电磁屏蔽片2和注塑胶层4上表面弯折延伸。第一极耳12和第二极耳13自由端从保护板5上穿出后，向上延伸弯折且固定连接于保护板5上。保护板5上固定连接正极导线51和负极导线52，其连接可以是其他连接方式。正极导线51和负极导线52自由端连接到所需产品上。保护板5上固定连接有电器元件54，其连接可以是其他的连接方式。电器元件54可以为一个或者多个，可以根据实际情况进行设定。电器元件54包括但不限于集成电路,场效应管(mos管),电容和电阻等，电器元件54可以提供过充保护检测和过放保护检测等。在充电且电压达到预定值后，过充保护检测电压元件会使电路关断，无法再充电进入，防止软包电芯1电压太高，损坏软包电芯1，导致爆炸起火等。在放电且电压达到预定值后，过放保护检测电压元件使电路关断，无法再放电，防止软包电芯1损坏。电器元件54还可以根据设计要求提供其他保护功能，如温度保护，短路保护，过流保护等。第一极耳12和第二极耳13固定连接在保护板5上，使软包电芯1上的电传导到保护板5上，正极导线51和负极导线52固定连接在保护板5上，使得正极导线51和负极导线52也形成有电。注塑胶层4上设置保护板5，保护板5上的电器元件54可以用于控制电池的电流和电压，当电流或电压不符合设定要求时，电路会自动切断。安装时，软包电芯1放入且粘接于下盖3内侧表面；电磁屏蔽片2包住软包电芯1上表面，折弯第一极耳12和第二极耳13；通过低压注塑机注塑胶料形成注塑胶层4，注塑胶层4填充到电磁屏蔽片2和下盖3内，使得注塑胶层4能密封软包电芯1；装入保护板5，将第一极耳12和第二极耳13穿过保护板5，进而将第一极耳12和第二极耳13自由端固定连接在保护板5上表面上，保护板5刚好固定连接在 下盖3内；将正极导线51和负极导线52固定连接在保护板5上，同时也将至少一个电器元件54固定连接在保护板5上表面上。通过设置软包电芯1能容纳电解液113，防止电解液113直接对金属壳体直接进行腐蚀，降低漏电解液113风险。本发明的一种含软包电芯的电池，相对于现有技术而言具有的优点是：通过设置保护板5和电器元件54，可以为电池提供过充，过放和过流，有短路保护，温度保护等的功能；减小产生电磁干扰信号，减小对使用该电池的产品产生电磁干扰，提高产品质量和用户使用体验；不会有漏电解液113风险，降低电池短路等安全隐患。较优选的是，注塑胶层4通过注塑机注塑上的模具形成的，注塑胶层4上设置避让槽，避让槽用于避让第一极耳12弯折的位置和第二极耳13弯折的位置。
本实用新型的一种含软包电芯的电池，请参考图1至图3相关各图，在前面技术方案的基础上还可以是:所述保护板5上开设有插入孔53，所述第一极耳12和所述第二极耳13分别穿设于对应的所述插入孔53内，所述第一极耳12和所述第二极耳13自由端固定连接于所述保护板5上表面上。这样，保护板5上开设插入孔53，插入孔53形状可以根据第一极耳12和第二极耳13的形状而设定。第一极耳12和第二极耳13插入到保护板5上对应的插入孔53内，方便第一极耳12和第二极耳13的伸出，同时也限定第一极耳12和第二极耳13自由端固定连接在保护板5上。较优选的是，插入孔53可以为弧形槽或方形。
本实用新型的一种含软包电芯的电池，请参考图1至图3相关各图，在前面技术方案的基础上还可以是:所述保护板5为柔性电路板或玻璃纤维环氧树脂覆铜板。这样，柔性电路板又称“FPC柔性板”，是用柔性的绝缘基材制成的印刷电路，具有许多硬性印刷电路板不具备的优点。柔性电路板可以自由弯曲、卷绕、折叠，可依照空间布局要求任意安排，并在三维空间任意移动和伸缩，从而达到元器件装配和导线连接的一体化。
本实用新型的一种含软包电芯的电池，请参考图1至图3相关各图，在前面技术方案的基础上还可以是:所述保护板5上表面上粘接有绝缘层6，所述第一极耳12和所述第二极耳13自由端粘接于所述绝缘层6下表面上。这样，绝缘层6粘接在保护板5上，也粘接在电器元件54、正极导线51、负极导线52、第一极耳12 和第二极耳13上。正极导线51和负极导线52自由端从绝缘层6中伸出。绝缘层6可以起到防电、防水和防尘的作用。绝缘层6由绝缘材料制成的零件。
本实用新型的一种含软包电芯的电池，请参考图1至图3相关各图，在前面技术方案的基础上还可以是:所述下盖3和所述保护板5边缘上套设有可热缩材料制成的热缩套管7。这样，热缩套管7套设在下盖3外周上，同时也套设在保护板5或绝缘层6边缘上。热缩套管7为可热缩材料制成，即受热后收缩能包紧下盖3、保护板5或绝缘层6边缘即可。当热缩套管7安装在下盖3上后，通过热缩后，使得热缩套管7上端抵接在保护板5或者绝缘层6上，不仅能稳固保护板5或绝缘层6，而且也能起到美观作用。进一步优选的技术方案为：所述热缩套管7由聚氯乙烯或聚乙烯或PET材料制成。这样，聚氯乙烯或聚乙烯或PET制成的热缩套管7容易加热收缩。
本实用新型的一种含软包电芯的电池，请参考图1至图3相关各图，在前面技术方案的基础上还可以是:所述第一极耳12和所述第二极耳13从所述软包电芯本体11外周上部或者中部或下部向外延伸。这样，第一极耳12和第二极耳13从软包电芯本体11外周上部或中部或下部处径向向外延伸，即根据软包电芯1不同的需求，来选择处于不同位置的第一极耳12和第二极耳13的软包电芯1。
本实用新型的一种含软包电芯的电池，请参考图1至图3相关各图，在前面技术方案的基础上还可以是:所述软包电芯本体11呈圆柱状或方形，所述软包电芯1内设置有卷设于中心的卷绕件，所述第一极耳12和所述第二极耳13端部均固定连接于所述卷绕件上，所述第一极耳12和所述第二极耳13上下表面均通过极耳胶固定连接于所述软包电芯本体11外周且从所述软包电芯本体11外周径向向外延伸。这样，软包电芯本体11外形呈圆柱状，能刚好适合下盖3内的形状，节省空间。或者软包电芯本体11外形可以为方形，软包电芯1能放下盖3内即可，形状可以根据实际情况进行设定。第一极耳12的自由端和第二极耳13的自由端从软包电芯本体11内部设置的卷绕件上伸出，第一极耳12和第二极耳13可以对称设置从卷绕件两侧伸出，也可以不对称设置。卷绕件一圈一圈绕设在软包电芯本体11内部，其由正极极片、隔膜和负极极片卷绕形成的，隔膜起到防止正极极片和负极极片短路的作用。第一极耳12连接在正(负)极片上和第二 极耳13连接在负(正)极片上，具体位置可以根据实际情况进行设置，方便软包电芯1与其他零部件之间的连接。第一极耳12从软包电芯本体11中心伸出部分的上表面和下表面均粘接极耳胶，极耳胶上下表面均有粘接性，第一极耳12通过极耳胶粘接在软包电芯本体11上部或中部或下部且从软包电芯本体11外周向外延伸；第二极耳13通过极耳胶粘接在软包电芯本体11上部或中部或下部且从软包电芯本体11外周向外延伸。通过设置极耳胶，杜绝第一极耳12和第二极耳13与软包电芯本体11的接触，起到绝缘作用。进一步优选的技术方案为：所述软包电芯本体11包括上铝塑膜层111、下铝塑膜层112和电解液113，所述上铝塑膜层111和所述下铝塑膜层112边缘之间通过密封热压固定连接，所述电解液113位于所述上铝塑膜层111和所述下铝塑膜层112围设形成的腔体内，所述第一极耳12端部上下表面均通过极耳胶粘接于所述上铝塑膜层111和所述下铝塑膜层112上。这样，上铝塑膜层111和下铝塑膜层112之间围设形成腔体且整体上形成圆柱状，腔体内填充有电解液113。上铝塑膜层111和下铝塑膜层112之间相互包裹且上铝塑膜层111和下铝塑膜层112边缘通过热压方式连接的，使得两者之间连接更加紧密，用于容纳电解液113。第一极耳12端部上表面通过极耳胶与上铝塑膜层111粘接连接；第一极耳12端部下表面通过极耳胶与下铝塑膜层112粘接连接，使得第一极耳12与上铝塑膜层111和下铝塑膜层112均粘接连接且同时起到绝缘作用。第二极耳13端部上表面通过极耳胶与上铝塑膜层111粘接连接；第二极耳13端部下表面通过极耳胶与下铝塑膜层112粘接连接，使得第二极耳13与上铝塑膜层111和下铝塑膜层112均粘接连接且同时起到绝缘作用。将电解液113装入软包电芯本体11内，能达到防止该电池漏电解液113的风险；如该电池直径为12mm，电池高度为5.4mm时，该电池容量能达到50mAh；该电池直径为14mm，电池高度为5.4mm时，该电池容量能达到65mAh；该电池直径为10mm，电池高度为5.4mm时，该电池容量能达到40mAh。
本实用新型的一种含软包电芯的电池，请参考图1至图3相关各图，在前面技术方案的基础上还可以是:所述下盖3为金属层。这样，下盖3为金属层，金属层可以起到减小电磁干扰信号的作用，不会对使用该电池的产品产生电磁干扰，提高产品质量和用户使用体验。
上述仅对本实用新型中的几种具体实施例加以说明，但并不能作为本实用新型的保护范围，凡是依据本实用新型中的设计精神所作出的等效变化或修饰或等比例放大或缩小等，均应认为落入本实用新型的保护范围。

Claims (10)

  1. 一种含软包电芯的电池，其特征在于：包括软包电芯(1)、电磁屏蔽片(2)、下盖(3)、注塑胶层(4)和保护板(5)，所述软包电芯本体(11)底部粘设于所述下盖(3)内侧底表面，所述软包电芯(1)包括软包电芯本体(11)、第一极耳(12)和第二极耳(13)，所述第一极耳(12)和所述第二极耳(13)位于所述软包电芯本体(11)外周且其自由端向外延伸，所述电磁屏蔽片(2)粘设于所述软包电芯本体(11)上表面上，所述注塑胶层(4)密封填充于所述电磁屏蔽片(2)和所述下盖(3)内，所述保护板(5)固定连接于所述注塑胶层(4)上，所述第一极耳(12)和所述第二极耳(13)均弯折延伸出所述电磁屏蔽片(2)和所述注塑胶层(4)上表面上方，所述第一极耳(12)和所述第二极耳(13)自由端穿设且固定连接于所述保护板(5)上，所述保护板(5)上固定连接有正极导线(51)和负极导线(52)，所述保护板(5)上固定连接有至少一个电器元件(54)。
  2. 根据权利要求1所述的一种含软包电芯的电池，其特征在于：所述保护板(5)上开设有插入孔(53)，所述第一极耳(12)和所述第二极耳(13)分别穿设于对应的所述插入孔(53)内，所述第一极耳(12)和所述第二极耳(13)自由端固定连接于所述保护板(5)上表面上。
  3. 根据权利要求1所述的一种含软包电芯的电池，其特征在于：所述保护板(5)为柔性电路板或玻璃纤维环氧树脂覆铜板。
  4. 根据权利要求1所述的一种含软包电芯的电池，其特征在于：所述保护板(5)上表面上粘接有绝缘层(6)，所述第一极耳(12)和所述第二极耳(13)自由端粘接于所述绝缘层(6)下表面上。
  5. 根据权利要求1-4任意一项权利要求所述的一种含软包电芯的电池，其特征在于：所述下盖(3)和所述保护板(5)边缘上套设有可热缩材料制成的热缩套管(7)。
  6. 根据权利要求5所述的一种含软包电芯的电池，其特征在于：所述热缩套管(7)由聚氯乙烯或聚乙烯或PET材料制成。
  7. 根据权利要求1-4任意一项权利要求所述的一种含软包电芯的电池，其特征在于：所述第一极耳(12)和所述第二极耳(13)从所述软包电芯本体(11)外周上部或者中部或下部向外延伸。
  8. 根据权利要求1-4任意一项权利要求所述的一种含软包电芯的电池，其特征在于：所述软包电芯本体(11)呈圆柱状或方形，所述软包电芯(1)内设置有卷设于中心的卷绕件，所述第一极耳(12)和所述第二极耳(13)端部均固定连接于所述卷绕件上，所述第一极耳(12)和所述第二极耳(13)上下表面均通过极耳胶固定连接于所述软包电芯本体(11)外周且从所述软包电芯本体(11)外周径向向外延伸。
  9. 根据权利要求8所述的一种含软包电芯的电池，其特征在于：所述软包电芯本体(11)包括上铝塑膜层(111)、下铝塑膜层(112)和电解液(113)，所述上铝塑膜层(111)和所述下铝塑膜层(112)边缘之间通过密封热压固定连接，所述电解液(113)位于所述上铝塑膜层(111)和所述下铝塑膜层(112)围设形成的腔体内，所述第一极耳(12)端部上下表面均通过极耳胶粘接于所述上铝塑膜层(111)和所述下铝塑膜层(112)上。
  10. 根据权利要求1-4任意一项权利要求所述的一种含软包电芯的电池，其特征在于：所述下盖(3)为金属层。
PCT/CN2020/070765 2019-01-31 2020-01-07 一种含软包电芯的电池 WO2020156061A1 (zh)

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CN210723171U (zh) * 2019-11-27 2020-06-09 新余赣锋电子有限公司 一种含软包电芯的电池
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