WO2021103292A1 - 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
WO2021103292A1
WO2021103292A1 PCT/CN2020/070766 CN2020070766W WO2021103292A1 WO 2021103292 A1 WO2021103292 A1 WO 2021103292A1 CN 2020070766 W CN2020070766 W CN 2020070766W WO 2021103292 A1 WO2021103292 A1 WO 2021103292A1
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WIPO (PCT)
Prior art keywords
soft
plastic film
packed
film layer
battery
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Application number
PCT/CN2020/070766
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English (en)
French (fr)
Inventor
李良彬
肖海燕
刘晓伟
余小旦
简文龙
李维义
刘祥郡
董水金
Original Assignee
新余赣锋电子有限公司
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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 WO2021103292A1 publication Critical patent/WO2021103292A1/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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • 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 the technical field of batteries, in particular to a battery containing a soft-packed battery cell.
  • lithium-ion power batteries have the advantages of high specific energy, many cycles of use, and long storage time. Not only are they often used in portable electronic devices such as mobile phones, digital cameras, and notebook computers, they are also used more and more. In terms of large and medium-sized electric equipment such as electric vehicles, electric bicycles, and electric tools, the performance requirements for lithium-ion power batteries are becoming higher and higher.
  • soft-packed lithium-ion batteries For soft-packed lithium-ion batteries, they are welcomed by the market due to their simple design, safety, and high energy density.
  • the prior art soft-packed lithium-ion batteries contain electrolyte in their soft-packed cells, which can be exposed to external forces or other conditions. , Its structure may be bent and there is a risk of leakage, and the electrolyte may corrode the shell, which will cause the shell to become thinner and leak, and safety is reduced.
  • soft-packed lithium-ion batteries are often used in portable electronic devices, they have a large capacity when they are in direct contact with the human body, and even when used in large-scale electric equipment such as electric vehicles, once the above phenomenon occurs, they will often cause greater harm to the human body. A major 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 soft-packed battery cell with simple structure, flexible layout, strong practicability, good safety and can effectively enhance the value of the product Battery.
  • the utility model relates to a battery containing a soft-packed battery cell, comprising an injection molding layer, a wire group, a soft-packing battery core, and a shell.
  • the outer periphery of the injection molding layer is sealed and clamped on the inner periphery of the shell.
  • the injection molding layer The inner periphery of the soft-packed battery is sealed and clamped on the outer periphery of the soft-packed battery, the injection layer and the outer shell are surrounded by a cavity for accommodating the soft-packed battery, and the soft-packed battery is accommodated in the
  • the wire group includes a positive wire and a negative wire, and the fixed end of the positive wire and the fixed end of the negative wire are both arranged inside the housing and are respectively connected to the soft package at corresponding positions.
  • the core is fixed, the free end of the positive wire and the free end of the negative wire both extend to the outside of the housing, and the angle between the positive wire and the negative wire is 0-180°.
  • the battery containing soft-packed batteries of the present invention can also be:
  • the soft-packed battery cell includes a soft-packed battery core body, a positive electrode ear and a negative electrode ear provided on the soft-pack battery core body at intervals, and the fixed end of the positive electrode ear and the fixed end of the negative electrode ear are respectively connected to the The soft-pack battery body is connected, and the free end of the positive electrode ear and the free end of the negative electrode ear are respectively fixed on the upper surface of the soft-pack battery core body.
  • the fixed end of the positive lead and the free end of the positive lug are connected inside the housing, and the fixed end of the negative lead and the free end of the negative lug are connected inside the housing.
  • the width of the positive electrode ear and the negative electrode ear are both 1.0-5.0 mm.
  • the soft-packed battery core body is cylindrical or square, the soft-packed battery core body is provided with a winding piece wound in the center, and the fixed end of the positive electrode ear and the fixed end of the negative electrode ear are fixedly connected to On the winding member, the positive electrode ear and the negative electrode ear are fixedly connected to the outer periphery of the soft battery core body at an overlapping position with the soft battery core body, and the free end of the positive electrode ear and The free ends of the negative electrode ears all extend along the outer circumference of the soft-packed cell body to the upper surface of the soft-packed cell body.
  • 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 connected in a sealed and hot-pressing fixed manner.
  • the electrolyte is filled in the cavity formed by the upper aluminum-plastic film layer and the lower aluminum-plastic film layer, and the positive lug overlaps the upper aluminum-plastic film layer and the lower aluminum-plastic film layer.
  • the position is fixed with the upper aluminum-plastic film layer and the lower aluminum-plastic film layer in three layers, and the negative electrode ear is at the position where it overlaps with the upper aluminum-plastic film layer and the lower aluminum-plastic film layer.
  • the upper aluminum-plastic film layer and the lower aluminum-plastic film layer are fixed in three layers.
  • Both the free end of the positive electrode ear and the free end of the negative electrode ear are attached to the outer surface of the upper aluminum-plastic film layer by double-sided adhesive.
  • the outer periphery of the upper aluminum-plastic film layer is provided with an upper extension layer
  • the outer periphery of the lower aluminum-plastic film layer is provided with a lower extension layer
  • the upper extension layer and the lower extension layer are provided with sealing hot pressing
  • the formed pattern, the upper extension layer and the lower extension layer both extend along the straight side of the soft-pack battery core body to the top of the soft-pack battery core body.
  • the housing is made of stainless steel material.
  • the injection layer is made of hot melt glue.
  • the utility model relates to a battery containing a soft-packed battery cell, comprising an injection molding layer, a wire group, a soft-packing battery core, and a shell.
  • the outer periphery of the injection molding layer is sealed and clamped on the inner periphery of the shell.
  • the injection molding layer The inner periphery of the soft-packed battery is sealed and clamped on the outer periphery of the soft-packed battery, the injection layer and the outer shell are surrounded by a cavity for accommodating the soft-packed battery, and the soft-packed battery is accommodated in the
  • the wire group includes a positive wire and a negative wire, and the fixed end of the positive wire and the fixed end of the negative wire are both arranged inside the housing and are respectively connected to the soft package at corresponding positions.
  • the core is fixed, the free end of the positive wire and the free end of the negative wire both extend to the outside of the housing, and the angle between the positive wire and the negative wire is 0-180°.
  • the soft-clad cell is contained inside the casing, and then one end of the positive wire and one end of the negative wire are both arranged outside the casing, and the free end of the positive wire and The free ends of the negative wires are respectively fixed to the soft-clad cells at corresponding positions, and then the positive and negative electrodes of the soft-clad cells are led out of the housing, and the positive and negative wires include an angle
  • the position of the positive wire and the negative wire can be arbitrarily arranged outside the housing, and the length of the positive wire and the negative wire can be adjusted at will, so even the positive wire and the negative wire can be adjusted at will.
  • the peripheral interface to which the negative wire needs to be connected is far away, and it is convenient to connect the positive wire and the negative wire to the peripheral interface conveniently.
  • the injection-molded layer seals the soft-packed batteries inside the casing, thereby avoiding short circuits and leakage caused by cell damage when the soft-packed batteries are impacted by an external force. Due to the sealing effect, Even if the soft-packed battery cell leaks liquid, it will not cause safety problems due to the liquid flowing out of the casing.
  • the battery containing a soft-packed battery cell of the utility model has the advantages of simple structure, flexible layout, strong practicability, good safety, and can effectively enhance product value.
  • Figure 1 is an exploded view of a battery with soft-packed batteries according to the utility model.
  • Figure 2 is a perspective view of a battery with soft-packed batteries according to the present invention.
  • Fig. 3 is a cross-sectional view of Fig. 2A-A of a battery with soft-packed cells according to the present invention.
  • Fig. 4 is a cross-sectional view of Fig. 2B-B of a battery with a soft-packed cell according to the present invention.
  • FIGS. 1 to 4 of the accompanying drawings a battery containing a soft-packed cell of the present invention will be further described in detail with reference to FIGS. 1 to 4 of the accompanying drawings.
  • the battery of the present invention contains a soft-packed battery cell, please refer to the relevant figures in Figures 1 to 4, including the injection layer 1, the wire group, the soft-packed battery cell 12 and the shell 8.
  • the outer periphery of the injection layer 1 The inner periphery of the injection layer 1 is sealed and clamped on the inner periphery of the casing 8, and the inner periphery of the injection layer 1 is sealed and clamped on the outer periphery of the soft package cell 12, and the injection layer 1 and the casing 8 are surrounded by A cavity for accommodating the soft-clad battery 12, the soft-clad battery 12 is accommodated in the injection molding layer 1,
  • the wire group includes a positive wire 2 and a negative wire 3, and a fixed end of the positive wire 2 and The fixed ends of the negative wire 3 are all arranged inside the housing 8 and are respectively fixed to the soft-clad cell 12 at corresponding positions, the free end of the positive wire 2 and the free end of the negative wire 3 Both extend to the outside of the housing 8, and the angle between the positive
  • the soft-packed cell 12 is housed inside the casing 8, and then one end of the positive wire 2 and one end of the negative wire 3 are both arranged outside the casing 8, and the positive
  • the free end of the wire 2 and the free end of the negative wire 3 are respectively fixed to the soft-clad cell 12 at corresponding positions, and then the positive and negative electrodes of the soft-clad cell 12 are led out of the housing 8, and
  • the angle between the positive wire 2 and the negative wire 3 is 0-180°, and the positions of the positive wire 2 and the negative wire 3 can be freely arranged outside the housing 8, and the positive wire can be adjusted at will 2 and the length of the negative wire 3, so even if the positive wire 2 and the negative wire 3 need to be connected to the peripheral interface is far away, it is convenient to connect the positive wire 2 and the negative wire 3 to the outside.
  • the injection molding layer 1 seals the soft-packed batteries 12 inside the casing 8, and fills the gap between the casing 8 and the soft-packed batteries 12, and then the soft-packed batteries
  • the core body 7 is completely fixed in the casing 8 to avoid short circuit and liquid leakage caused by the cell damage caused by the collision with the casing 8 when the soft cell 12 is impacted by an external force. Due to the sealing effect, Even if the soft-packed battery cell 12 leaks liquid, it will not cause safety problems due to the liquid flowing out of the housing 8.
  • the battery containing a soft-packed battery cell of the utility model has the advantages of simple structure, flexible layout, strong practicability, good safety, and can effectively enhance product value.
  • the soft-packed cell 12 includes a soft-packed cell body 7.
  • Positive lugs 4 and negative lugs 5 arranged on the soft-pack battery core body 7 at intervals, the fixed end of the positive electrode lug 4 and the fixed end of the negative electrode lug 5 are respectively connected to the soft-pack battery core body 7 Connected, the free end of the positive electrode lug 4 and the free end of the negative electrode lug 5 are respectively fixed on the upper surface of the soft-packed battery core body 7.
  • the positive electrode ear 4 and the negative electrode ear 5 are arranged on the soft-pack battery core body 7 at intervals, and the positive electrode ear 4 and the negative electrode ear 5 can be symmetrically arranged on the soft-pack battery core body 7. Both sides can also be arranged asymmetrically on the soft-pack battery core body 7, and finally one end of the positive electrode lug 4 and one end of the negative electrode lug 5 are both connected to the soft-pack battery core body 7, so The other end of the positive electrode lug 4 and the other end of the negative electrode lug 5 can be fixed to the upper part of the soft-packed battery core body 7, so that the space required by the soft-packed battery core 12 is reduced to make it It can be completely contained in the casing 8, which is convenient for the casing 8 and the injection layer 1 to completely wrap and seal the soft package cell 12, thereby protecting the soft package in the event of an external force or impact The battery cell 12 will not leak, and even if the soft-packed battery cell 12 leaks, it will not leak out due to the sealing effect of the cas
  • the positive lead 2 and the negative lead 3 lead the positive lug 4 and the negative lug 5 out of the injection molding layer 1 and the casing 8, so that the positive lug 4 and the negative lug 5 are always It is located inside the housing 8, preventing the positive electrode ear 4 and the negative electrode ear 5 from being easily broken when they are directly connected to products using soft-packed lithium-ion batteries, thereby eliminating the hidden dangers of open circuit and short circuit.
  • a further preferred technical solution is that the positive lead 2 and the positive lug 4 are welded and fixed inside the housing 8, and the negative lead 3 and the negative lug 5 are welded and fixed inside the housing 8. In this way, the connection between the positive lead 2 and the positive lug 4 is stronger, and the connection between the negative lead 3 and the negative lug 5 is stronger, and the hidden dangers of disconnection and short circuit are further eliminated.
  • the widths of the positive lug 4 and the negative lug 5 Both are 1.0-5.0mm.
  • the width of the positive lug 4 and the negative lug 5 is set to 1.0-5.0mm, which facilitates the connection of the positive lug 4 and the negative lug 5 with other parts during use, or the soft.
  • the positive electrode ear 4 and the negative electrode ear 5 have enough width to be fixed on the soft battery core body 7, and the positive electrode ear 4 and the The negative ear 5 will not occupy more accommodating space due to its excessively wide width, and the soft-packed battery cell 12 requires a tighter space in the housing 8, and furthermore, when the housing 8 has a certain space , The electric capacity of the soft-packed battery cell 12 is larger.
  • the soft-packed cell body 7 is cylindrical or square.
  • the soft-packed battery core body 7 is provided with a winding piece wound at the center, and the fixed end of the positive electrode lug 4 and the fixed end of the negative electrode lug 5 are both fixedly connected to the winding piece. Both the positive electrode ear 4 and the negative electrode ear 5 are fixedly connected to the outer periphery of the soft battery core body 7 at the overlapping position with the soft battery core body 7.
  • the free end of the positive electrode ear 4 and the negative electrode ear all extend along the outer circumference of the soft-packed cell body 7 to the upper surface of the soft-packed cell body 7.
  • the soft-pack battery core body 7 has a cylindrical shape, so that the space occupied by the soft-pack battery core body 7 is small and space is saved.
  • the free end of the positive electrode lug 4 and the free end of the negative electrode lug 5 may be symmetrically arranged to protrude from both sides of the winding member, or may be arranged asymmetrically.
  • the winding member is wound around the inside of the soft-packed battery core body 7, which is formed by winding the positive pole piece, the separator and the negative pole piece.
  • the separator is used to prevent the positive pole piece and the negative pole piece from contacting and short-circuiting.
  • the role of. The positive lug 4 is connected to the positive pole piece, and the negative electrode lug 5 is connected to the negative pole piece.
  • the specific position can be set according to the actual situation to facilitate the communication between the soft-packed battery core body 7 and other parts. Connection.
  • a further preferred technical solution is that the positive electrode lug 4 and the negative electrode lug 5 are both fixedly connected to the outer periphery of the soft-pack battery core body 7 through the lug glue 11 at the overlapping position with the soft-pack battery core body 7.
  • both the positive electrode lug 4 and the negative electrode lug 5 are bonded to the lower part of the soft-packed cell body 7 through the tab glue 11 and extend outward from the lower part of the soft-packed cell body 7.
  • the positive electrode tab 4 and the negative electrode tab 5 are prevented from contacting the soft-packed battery core body 7, respectively, which plays a role of insulation.
  • the soft pack battery body 7 includes an upper aluminum-plastic film layer 9, a lower aluminum-plastic film layer 10, and electrolyte, and the edges of the upper aluminum-plastic film layer 9 and the lower aluminum-plastic film layer 10
  • the electrolytic solution is filled in the cavity formed by the upper aluminum-plastic film layer 9 and the lower aluminum-plastic film layer 10, and the positive lug 4 is in contact with the upper
  • the overlapping position of the aluminum-plastic film layer 9 and the lower aluminum-plastic film layer 10 is fixed in three layers with the upper aluminum-plastic film layer 9 and the lower aluminum-plastic film layer 10, and the negative electrode lug 5 is in contact with the
  • the overlapping position of the upper aluminum plastic film layer 9 and the lower aluminum plastic film layer 10 is fixed in three layers with the upper aluminum plastic film layer 9 and the lower aluminum plastic film layer 10.
  • a cavity is formed between the upper aluminum-plastic film layer 9 and the lower aluminum-plastic film layer 10, and the cavity is cylindrical as a whole, the cavity is filled with the electrolyte, and the electrolyte is set in
  • the reason that the upper aluminum-plastic film layer 9 and the lower aluminum-plastic film layer 10 is not directly arranged between the shell 8 and the injection molding layer 1 is to reduce the injection molding layer 1 and the shell 8 because The corrosive effect of the electrolyte causes the risk of leakage, thereby increasing the life of the soft-packed lithium-ion battery.
  • the upper aluminum-plastic film layer 9 is first punched out of a pit shape with a mold, and then the upper aluminum-plastic film layer 9 and the lower aluminum-plastic film layer 10 are connected by hot pressing to form a cavity for accommodating the electrolyte.
  • the hot pressing step makes the connection between the upper aluminum plastic film layer 9 and the lower aluminum plastic film layer 10 closer, and only the upper aluminum plastic film layer 9 needs to be punched in this process, which simplifies the installation steps.
  • the structure is simple, and the capacitance of the soft-packed battery core body 7 is also improved.
  • the positive electrode ear 4 is in a three-layer type with the upper aluminum plastic film layer 9 and the lower aluminum plastic film layer 11 at the overlapping position 11 with the upper aluminum plastic film layer 9 and the lower aluminum plastic film layer 10 Fixed, the negative electrode ear 5 and the upper aluminum plastic film layer 9 and the lower aluminum plastic film layer 10 overlap with the three layers of the upper aluminum plastic film layer 9 and the lower aluminum plastic film layer 10 ⁇ Type fixed.
  • a further preferred technical solution is that the positive electrode lug 4 passes through the lug glue 11 and the upper aluminum plastic film layer 9 at the overlapping position with the upper aluminum plastic film layer 9 and the lower aluminum plastic film layer 10.
  • the lower aluminum-plastic film layer 10 is fixed in three layers, and the negative electrode lug 5 passes through the lug glue 11 and the upper aluminum-plastic film layer 9 and the lower aluminum-plastic film layer 10 at the overlapping position.
  • the upper aluminum plastic film layer 9 and the lower aluminum plastic film layer 10 are fixed in three layers. In this way, the insulating effect of the tab glue 11 prevents the positive tab 4 from contacting the upper aluminum plastic film layer 9 and the lower aluminum plastic film layer 10, and the negative tab 5 and the upper aluminum
  • the plastic film layer 9 is in contact with the lower aluminum plastic film layer 10.
  • a further preferred technical solution is that the free end of the positive electrode ear 4 and the free end of the negative electrode ear 5 are both adhered to the outer surface of the upper aluminum-plastic film layer 9 through a double-sided adhesive 6.
  • the positive electrode ear 4 and the negative electrode ear 5 protrude from the lower part of the soft-packed cell body 7 and then extend along the straight side of the soft-packed cell body 7, and then free the positive electrode ear 4
  • the end and the free end of the negative electrode ear 5 are glued to the outer surface of the upper aluminum-plastic film layer 9, the soft-packed battery core 12 is cylindrical, and the positive electrode ear 4 and the negative electrode ear 5 are completely fixed.
  • the positive lead 2 and the positive lug 4 it is convenient for the positive lead 2 and the positive lug 4 to be connected and fixed, and the negative lead 3 and the negative lug 5 are connected and fixed, so that the soft-packed battery 12
  • the inside of the housing 8 and the wire group are more tidy and beautiful, thereby reducing the space occupied by the soft-packed battery cell 12 and the wire group when connecting, and facilitating the wire group and the soft bag Connection of the battery body 7.
  • the outer periphery of the upper aluminum plastic film layer 9 extends outward.
  • the outer periphery of the lower aluminum plastic film layer 10 is provided with a lower extension layer, the upper extension layer and the lower extension layer are provided with a pattern formed by sealing and hot pressing, the upper extension layer and the The lower extension layers all extend along the straight side of the soft-packed cell body 7 to the top of the soft-packed cell body 7.
  • the upper aluminum-plastic film layer 9 is provided with an upper extension layer extending outward from the outer periphery
  • the lower aluminum-plastic film layer 10 is provided with a lower extension layer extending outward from the outer periphery. Setting, widening the width of the upper aluminum-plastic film layer 9 and the lower aluminum-plastic film layer 10, so that the upper aluminum-plastic film layer 9 and the lower aluminum-plastic film layer 10 are bonded together It is firmer and reduces the risk of leakage of the soft-packed battery core body 7.
  • the upper extension layer and the lower extension layer are sealed and hot-pressed to form a pattern.
  • the cross section of the pattern may be zigzag or wavy extending along the straight side of the soft-packed cell body 7. In this way, the distance between the outer circumference of the upper extension layer and the lower extension layer is evenly dispersed in each zigzag or each wave, and then the upper extension layer and the lower extension layer are in the shell 8 The shape of the interior becomes more regular.
  • the outer casing 8 is made of stainless steel.
  • the housing 8 made of stainless steel has an isolation effect on its internal and external electromagnetic field signals, thereby shielding the electromagnetic interference signals generated by the soft-packed lithium-ion battery during operation.
  • This soft-packed lithium-ion battery is particularly suitable for For products with high electromagnetic interference requirements, such as earphones and audio wearable products, the soft-packed lithium-ion battery will not cause electromagnetic interference to other parts, thereby improving product quality and user experience.
  • the material of the shell 8 can also be other metal materials besides stainless steel.
  • the outer surface of the casing 8 can also be treated with a surface treatment process such as electrophoresis, etc., so that the surface of the casing 8 has various colors, thereby increasing the product value of the soft-packed lithium ion battery.
  • the injection layer 1 is made of hot melt glue.
  • the low-pressure injection molding process is an encapsulation process that uses an injection pressure of 1.5-50Bar to inject the hot melt into the mold in a molten state and quickly solidify, and the melting temperature of the hot melt is generally 180-240°, In this way, delicate and sensitive electronic components can be packaged gently without harming them.
  • the soft-packed battery core 12 and the wire group inside the housing 8, and then use a low-pressure injection molding machine to inject the hot melt adhesive in a molten state onto the upper surface of the housing 8, and then the The hot melt adhesive begins to cool and solidify.
  • the curing time varies depending on the amount of glue, about 10 seconds to 50 seconds.
  • the hot melt adhesive and the shell 8 are tight. Bonding, so that there is a seal between the injection molding layer 1 and the casing 8, thereby preventing the soft-packed cell body 7 from leaking the electrolyte from between the casing 8 and the injection molding layer 1. A safety accident occurred due to seepage.
  • the hot melt adhesive can also play a role in impact resistance and stress buffering when the soft-packed lithium ion battery is subjected to external force or impact at the injection molding layer 1 after cooling.
  • the hot melt adhesive also has electrical insulation, and the use of the hot melt adhesive on the injection molding layer 1 can also prevent the contact between the connection between the wire set and the soft-clad cell body 7 and other external components. Avoid short circuits.
  • a further preferred technical solution is that the upper part of the injection molding layer 1 extends to the outside of the housing 8 and is clamped and fixed to the outer periphery of the housing 8. In this way, the injection-molded layer 1 completely covers the opening of the casing 8 and increases the sealing performance of the injection-molded layer 1 and the casing 8.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
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Abstract

一种含软包电芯（12）的电池，包括注塑层（1）、导线组、软包电芯（12）和外壳（8），所述注塑层（1）的外周密封卡接于所述外壳（8）的内周上，所述注塑层（1）的内周密封卡接于所述软包电芯（12）的外周上，所述注塑层（1）与所述外壳（8）围设形成有容纳所述软包电芯（12）的空腔，所述软包电芯（12）容纳在所述注塑层（1）内，所述导线组包括正导线（2）和负导线（3），所述正导线（2）的固定端和所述负导线（3）的固定端均设置在所述外壳（8）的内部且分别在对应位置处与所述软包电芯（12）固定，所述正导线（2）的自由端和所述负导线（3）的自由端均延伸至所述外壳（8）的外部，所述正导线（2）和所述负导线（3）夹角为0-180°。一种含软包电芯（12）的电池结构简单、布置灵活、实用性强、安全性好和可以有效提升产品价值。

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技术领域，特别是涉及一种含软包电芯的电池。
背景技术
目前，锂离子动力电池具有比能量高，循环使用次数多、存储时间长等优点，不仅经常被用在便携式电子设备上如移动电话、数码摄像机和笔记本电脑上，而且被越来越多的用在电动汽车、电动自行车以及电动工具等大中型电动设备方面，因此对锂离子动力电池的性能要求越来越高。
对于软包锂离子电池，以其设计简单、安全、能量密度高等特点受到市场欢迎，但是现有技术的软包锂离子电池在其软包电芯内部含有电解液，在受到外力或者其他情况下，其结构可能会受到弯折而有漏液的风险，而且电解液有可能会腐蚀外壳，进而导致外壳变薄漏液，安全性降低。并且由于软包锂离子电池经常用在便携式电子设备上，与人体直接接触，甚至用在电动汽车等大型电动设备方面时的容量较大，一旦发生上述现象，往往会对人体造成较大伤害，出现重大安全事故。
并且该类软包锂离子电池在使用过程中，会对使用此类软包锂离子电池产生电磁干扰，降低产品质量和用户使用体验。
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结构简单、布置灵活、实用性强、安全性好和可以有效提升产品价值的含软包电芯的电池。
本实用新型的一种含软包电芯的电池，包括注塑层、导线组、软包电芯和外壳，所述注塑层的外周密封卡接于所述外壳的内周上，所述注塑层的内周密 封卡接于所述软包电芯的外周上，所述注塑层与所述外壳围设形成有容纳所述软包电芯的空腔，所述软包电芯容纳在所述注塑层内，所述导线组包括正导线和负导线，所述正导线的固定端和所述负导线的固定端均设置在所述外壳的内部且分别在对应位置处与所述软包电芯固定，所述正导线的自由端和所述负导线的自由端均延伸至所述外壳的外部，所述正导线和所述负导线夹角为0-180°。
本实用新型的一种含软包电芯的电池还可以是：
所述软包电芯包括软包电芯本体、间隔设置于所述软包电芯本体上的正极耳和负极耳，所述正极耳的固定端和所述负极耳的固定端分别与所述软包电芯本体连接，所述正极耳的自由端和所述负极耳的自由端分别固定于所述软包电芯本体的上表面。
所述正导线的固定端和所述正极耳的自由端在所述外壳的内部连接，所述负导线的固定端和所述负极耳的自由端在所述外壳的内部连接。
所述正极耳和所述负极耳的宽度均为1.0-5.0mm。
所述软包电芯本体呈圆柱状或方形，所述软包电芯本体内设置有卷设于中心的卷绕件，所述正极耳的固定端和所述负极耳固定端均固定连接于所述卷绕件上，所述正极耳和所述负极耳均在与所述软包电芯本体的重叠位置处固定连接于所述软包电芯本体外周，所述正极耳的自由端和所述负极耳的自由端均沿所述软包电芯本体的外周延伸至所述软包电芯本体的上表面。
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密封热压式固定连接，所述电解液充设于所述上铝塑膜层和所述下铝塑膜层围设形成的腔体内，所述正极耳在与所述上铝塑膜层和所述下铝塑膜层的重叠位置处与所述上铝塑膜层和所述下铝塑膜层三层式固定，所述负极耳在与所述上铝塑膜层和所述下铝塑膜层的重叠位置处与所述上铝塑膜层和所述下铝塑膜层三层式固定。
所述正极耳的自由端和所述负极耳的自由端均通过双面胶粘设于所述上铝塑膜层的外表面。
所述上铝塑膜层外周向外延伸设置有上延伸层，所述下铝塑膜层外周向外 延伸设置有下延伸层，所述上延伸层和所述下延伸层设有密封热压形成的花纹，所述上延伸层和所述下延伸层均沿所述软包电芯本体的直边延伸至所述软包电芯本体的顶部。
所述外壳由不锈钢材料制成。
所述注塑层由热熔胶制成。
本实用新型的一种含软包电芯的电池，包括注塑层、导线组、软包电芯和外壳，所述注塑层的外周密封卡接于所述外壳的内周上，所述注塑层的内周密封卡接于所述软包电芯的外周上，所述注塑层与所述外壳围设形成有容纳所述软包电芯的空腔，所述软包电芯容纳在所述注塑层内，所述导线组包括正导线和负导线，所述正导线的固定端和所述负导线的固定端均设置在所述外壳的内部且分别在对应位置处与所述软包电芯固定，所述正导线的自由端和所述负导线的自由端均延伸至所述外壳的外部，所述正导线和所述负导线夹角为0-180°。这样，将所述软包电芯容纳在所述外壳的内部，然后将所述正导线的一端和所述负导线的一端均设置在所述外壳的外部，将所述正导线的自由端和所述负导线的自由端分别在对应位置处和所述软包电芯固定，进而将所述软包电芯的正负极引出所述外壳，并且所述正导线和所述负导线夹角为0-180°，可以在所述外壳的外部随意布置所述正导线和所述负导线的位置，并且可以随意调节所述正导线和所述负导线的长度，因此即使所述正导线和所述负导线需要连接的外设接口距离较远，也方便将所述正导线和所述负导线方便与外设接口连接。最后所述注塑层将所述软包电芯密封在所述外壳内部，进而避免所述软包电芯在受到外力冲击时造成的电芯破损引起的短路、漏液等，由于有密封作用，即便是所述软包电芯漏液也不会因为液体流出所述外壳而造成安全问题。本实用新型的一种含软包电芯的电池，相对于现有技术的优点是：结构简单、布置灵活、实用性强、安全性好和可以有效提升产品价值。
附图说明
图1本实用新型一种含软包电芯的电池爆炸图。
图2本实用新型一种含软包电芯的电池立体图。
图3本实用新型一种含软包电芯的电池图2A-A剖面图。
图4本实用新型一种含软包电芯的电池图2B-B剖面图。
图号说明
1…注塑层          2…正导线           3…负导线
4…正极耳          5…负极耳           6…双面胶
7…软包电芯本体    8…外壳             9…上铝塑膜层
10…下铝塑膜层     11…极耳胶          12…软包电芯
具体实施方式
下面结合附图的图1至图4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4中相关各图，包括注塑层1、导线组、软包电芯12和外壳8，所述注塑层1的外周密封卡接于所述外壳8的内周上，所述注塑层1的内周密封卡接于所述软包电芯12的外周上，所述注塑层1与所述外壳8围设形成有容纳所述软包电芯12的空腔，所述软包电芯12容纳在所述注塑层1内，所述导线组包括正导线2和负导线3，所述正导线2的固定端和所述负导线3的固定端均设置在所述外壳8的内部且分别在对应位置处与所述软包电芯12固定，所述正导线2的自由端和所述负导线3的自由端均延伸至所述外壳8的外部，所述正导线2和所述负导线3夹角为0-180°。这样，将所述软包电芯12容纳在所述外壳8的内部，然后将所述正导线2的一端和所述负导线3的一端均设置在所述外壳8的外部，将所述正导线2的自由端和所述负导线3的自由端分别在对应位置处和所述软包电芯12固定，进而将所述软包电芯12的正负极引出所述外壳8，并且所述正导线2和所述负导线3夹角为0-180°，可以在所述外壳8的外部随意布置所述正导线2和所述负导线3的位置，并且可以随意调节所述正导线2和所述负导线3的长度，因此即使所述正导线2和所述负导线3需要连接的外设接口距离较远，也方便将所述正导线2和所述负导线3方便与外设接口连接。最后所述注塑层1将所述软包电芯12密封在所述外壳8内部，并且充满在所述外壳8和所述软包 电芯12之间的缝隙中，进而将所述软包电芯本体7完整固定在所述外壳8中，避免所述软包电芯12在受到外力冲击时因为和所述外壳8碰撞造成的电芯破损引起的短路、漏液等，由于有密封作用，即便是所述软包电芯12漏液也不会因为液体流出所述外壳8而造成安全问题。本实用新型的一种含软包电芯的电池，相对于现有技术的优点是：结构简单、布置灵活、实用性强、安全性好和可以有效提升产品价值。
本实用新型的一种含软包电芯的电池，请参考图1至图3中相关各图，在前面技术方案的基础上具体可以是：所述软包电芯12包括软包电芯本体7、间隔设置于所述软包电芯本体7上的正极耳4和负极耳5，所述正极耳4的固定端和所述负极耳5的固定端分别与所述软包电芯本体7连接，所述正极耳4的自由端和所述负极耳5的自由端分别固定于所述软包电芯本体7的上表面。这样，所述正极耳4和所述负极耳5间隔设置在所述软包电芯本体7上，所述正极耳4和所述负极耳5可以对称设置在所述软包电芯本体7的两侧，也可以是不对称设置在所述软包电芯本体7上，最终将所述正极耳4的一端和所述负极耳5的一端均与所述软包电芯本体7连接，所述正极耳4的另一端和所述负极耳5的另一端分别固定于所述软包电芯本体7的上部即可，这样便缩小了所述软包电芯12所需要的空间，使其能完全容纳在所述外壳8中，方便所述外壳8和所述注塑层1将所述软包电芯12完全包裹住并密封，进而在受到外力或者撞击的情况下保护了所述软包电芯12不会发生漏液，就算所述软包电芯12发生漏液，也会因为所述外壳8和所述注塑层1的密封作用而不会渗出发生安全事故。
本实用新型的一种含软包电芯的电池，请参考图1至图3中相关各图，在前面技术方案的基础上还可以是：所述正导线2的固定端和所述正极耳4的自由端在所述外壳8的内部连接，所述负导线3的固定端和所述负极耳5的自由端在所述外壳8的内部连接。这样，所述正导线2和所述负导线3将所述正极耳4和所述负极耳5引出所述注塑层1和所述外壳8，使所述正极耳4和所述负极耳5始终位于所述外壳8内部，杜绝了所述正极耳4和所述负极耳5直接和使用软包锂离子电池的产品直接连接时容易发生折断的情况，进而消除了断 路、短路的隐患。进一步优选的技术方案为所述正导线2和所述正极耳4在所述外壳8的内部焊接固定，所述负导线3和所述负极耳5在所述外壳8的内部焊接固定。这样，所述正导线2和所述正极耳4的连接更加牢固，所述负导线3和所述负极耳5的连接更加牢固，进一步杜绝了断路、短路的隐患。
本实用新型的一种含软包电芯的电池，请参考图1至图4中相关各图，在前面技术方案的基础上还可以是：所述正极耳4和所述负极耳5的宽度均为1.0-5.0mm。这样，将所述正极耳4和所述负极耳5的宽度设置为1.0-5.0mm，方便所述正极耳4和所述负极耳5在使用时与其他零部件的连接，或者将所述软包电芯12容纳进所述外壳8内时，所述正极耳4和所述负极耳5有足够的宽度分别固定于所述软包电芯本体7上，并且所述正极耳4和所述负极耳5不会因为其宽度过宽而占用更多的容纳空间，所述软包电芯12在所述外壳8内所需的空间更紧密，进而在所述外壳8的空间一定的情况下，所述软包电芯12的电容量更大。
本实用新型的一种含软包电芯的电池，请参考图1至图4中相关各图，在前面技术方案的基础上还可以是：所述软包电芯本体7呈圆柱状或方形，所述软包电芯本体7内设置有卷设于中心的卷绕件，所述正极耳4的固定端和所述负极耳5固定端均固定连接于所述卷绕件上，所述正极耳4和所述负极耳5均在与所述软包电芯本体7的重叠位置处固定连接于所述软包电芯本体7外周，所述正极耳4的自由端和所述负极耳5的自由端均沿所述软包电芯本体7的外周延伸至所述软包电芯本体7的上表面。这样，所述软包电芯本体7呈圆柱状，使得所述软包电芯本体7所占有的空间小，节省了空间。所述正极耳4的自由端和所述负极耳5的自由端可以对称设置为分别从所述卷绕件的两侧伸出，也可以不对称设置。卷绕件一圈一圈绕设在所述软包电芯本体7的内部，其由正极极片、隔膜和负极极片卷绕形成，隔膜是为了防止正极极片和负极极片接触而短路的作用。所述正极耳4连接于所述正极极片上，所述负极耳5连接于所述负极极片上，具体位置可以根据实际情况进行设置，方便所述软包电芯本体7与其他零部件之间的连接。进一步优选的技术方案为所述正极耳4和所述负极耳5均在与所述软包电芯本体7的重叠位置处通过极耳胶11固定 连接于所述软包电芯本体7外周。这样，所述正极耳4和所述负极耳5均通过所述极耳胶11粘接于所述软包电芯本体7的下部且从所述软包电芯本体7的下部向外延伸，通过设置所述极耳胶11，杜绝了所述正极耳4和所述负极耳5分别与所述软包电芯本体7的接触，起到了绝缘作用。进一步优选的技术方案为所述软包电芯本体7包括上铝塑膜层9、下铝塑膜层10和电解液，所述上铝塑膜层9和所述下铝塑膜层10边缘之间密封热压式固定连接，所述电解液充设于所述上铝塑膜层9和所述下铝塑膜层10围设形成的腔体内，所述正极耳4在与所述上铝塑膜层9和所述下铝塑膜层10的重叠位置处与所述上铝塑膜层9和所述下铝塑膜层10三层式固定，所述负极耳5在与所述上铝塑膜层9和所述下铝塑膜层10的重叠位置处与所述上铝塑膜层9和所述下铝塑膜层10三层式固定。这样，所述上铝塑膜层9和所述下铝塑膜层10之间围设形成腔体且此腔体整体呈圆柱状，腔体内填充所述电解液，将所述电解液设置在所述上铝塑膜层9和所述下铝塑膜层10之间而不是直接设置在所述外壳8和所述注塑层1之间是为了降低所述注塑层1和所述外壳8因为所述电解液的腐蚀作用而产生漏液的风险，进而提高软包锂离子电池的寿命。所述上铝塑膜层9先用模具冲压出凹坑形状，然后将所述上铝塑膜层9和所述下铝塑膜层10通过热压方式连接形成腔体用于容纳电解液，热压步骤使得所述上铝塑膜层9和所述下铝塑膜层10之间连接更加紧密，而且此过程中只需要冲压所述上铝塑膜层9即可，简化了安装步骤，并且结构简单，同时也提高了所述软包电芯本体7的电容量。所述正极耳4在与所述上铝塑膜层9和所述下铝塑膜层10的重叠位置处11与所述上铝塑膜层9和所述下铝塑膜层10三层式固定，所述负极耳5在与所述上铝塑膜层9和所述下铝塑膜层10的重叠位置处与所述上铝塑膜层9和所述下铝塑膜层10三层式固定。进一步优选的技术方案为所述正极耳4在与所述上铝塑膜层9和所述下铝塑膜层10的重叠位置处通过极耳胶11与所述上铝塑膜层9和所述下铝塑膜层10三层式固定，所述负极耳5在与所述上铝塑膜层9和所述下铝塑膜层10的重叠位置处通过所述极耳胶11与所述上铝塑膜层9和所述下铝塑膜层10三层式固定。这样，所述极耳胶11的绝缘作用杜绝了所述正极耳4与所述上铝塑膜层9和所述下铝塑膜层10的接触，以及所 述负极耳5与所述上铝塑膜层9和所述下铝塑膜层10的接触。更进一步优选的技术方案为所述正极耳4的自由端和所述负极耳5的自由端均通过双面胶6粘设于所述上铝塑膜层9的外表面。这样，所述正极耳4和所述负极耳5由所述软包电芯本体7的下部伸出后沿所述软包电芯本体7的直边延伸，然后将所述正极耳4的自由端和所述负极耳5的自由端均粘设在所述上铝塑膜层9的外表面，所述软包电芯12呈圆柱状，所述正极耳4和所述负极耳5完全固定在所述软包电芯本体7上，方便所述正导线2和所述正极耳4连接并固定，所述负导线3和所述负极耳5连接并固定，使得所述软包电芯12和所述导线组在所述外壳8的内部更加整洁美观，进而减小了所述软包电芯12和所述导线组连接时所占用的空间，方便了所述导线组和所述软包电芯本体7的连接。
本实用新型的一种含软包电芯的电池，请参考图1至图4中相关各图，在前面技术方案的基础上还可以是：所述上铝塑膜层9外周向外延伸设置有上延伸层，所述下铝塑膜层10外周向外延伸设置有下延伸层，所述上延伸层和所述下延伸层设有密封热压形成的花纹，所述上延伸层和所述下延伸层均沿所述软包电芯本体7的直边延伸至所述软包电芯本体7的顶部。这样，所述上铝塑膜层9外周向外延伸设置有上延伸层，所述下铝塑膜层10外周向外延伸设置有下延伸层，所述上延伸层和所述下延伸层的设置，加宽了所述上铝塑膜层9和所述下铝塑膜层10粘接在一起的宽度，使得所述上铝塑膜层9和所述下铝塑膜层10的粘接更加牢固，减少了所述软包电芯本体7漏液的危险。所述上延伸层和所述下延伸层密封热压形成花纹，当所述花纹沿所述软包电芯本体7的直边延伸至所述软包电芯本体7的顶部时，因为所述上延伸层和所述下延伸层在远离所述软包电芯本体7的外周的一端周长比所述软包电芯本体7的外周周长更大，进而在所述上延伸层和所述下延伸层向所述软包电芯12的顶部发生弯折时所受到的挤压均匀分布到所述花纹中，使得所述软包电芯本体7容纳在所述外壳8的内部中时形状更加规律而不会发生漏液的危险。更进一步优选的技术方案为所述花纹的截面可以是沿所述软包电芯本体7的直边延伸的锯齿状或者波浪状。这样，所述上延伸层和所述下延伸层的外周比内周的距离差均匀分散到每个锯齿或者每个波浪中，进而所述上延伸层和所述下延伸层在所述 外壳8的内部的形状变得更加规律。
本实用新型的一种含软包电芯的电池，请参考图1至图4中相关各图，在前面技术方案的基础上还可以是：所述外壳8由不锈钢材料制成。这样，由不锈钢制成的所述外壳8对其内部和外部的电磁场信号有隔离作用，进而屏蔽了软包锂离子电池在工作时所产生的电磁干扰信号，此软包锂离子电池尤其适用于对电磁干扰要求高的产品如耳机音响类穿戴产品上，该软包锂离子电池不会对其他零部件产生电磁干扰作用，进而提高产品质量和用户使用体验。当然，所述外壳8的制成材料还可以是除不锈钢之外的其他金属材料。所述外壳8的外表面还可以采用表面处理工艺如电泳等，这样所述外壳8的表面便有了各种各样的颜色，进而提高了软包锂离子电池的产品价值。
本实用新型的一种含软包电芯的电池，请参考图1至图4中相关各图，在前面技术方案的基础上还可以是：所述注塑层1由热熔胶制成。这样，因为低压注塑工艺是使用一般在1.5-50Bar的注塑压力将热熔胶在熔融的状态下注入模具并快速固化成型的封装工艺，而热熔胶的熔融温度范围一般在180-240°，通过这种方法可以温和的将精密、敏感的电子元器件封装起来而不会对其产生伤害。先将所述软包电芯12和所述导线组布置到所述外壳8的内部，然后用低压注塑机将熔融状态的所述热熔胶注入到所述外壳8的上表面，随即所述热熔胶开始冷却和固化，固化的时间因为胶量的不同而不同，大约在10秒到50秒之间，当所述热熔胶完全固化之后，所述热熔胶和所述外壳8紧密贴合，使所述注塑层1和所述外壳8之间具有密封性，进而防止所述软包电芯本体7漏液之后所述电解液从所述外壳8和所述注塑层1之间渗出而发生安全事故。并且所述热熔胶在冷却之后还可以在软包锂离子电池在所述注塑层1处受到外力作用或者撞击时起到抗冲击和缓冲应力等作用。所述热熔胶还具有电绝缘性，所述注塑层1使用所述热熔胶还可以杜绝所述导线组和所述软包电芯本体7连接处和外部其他零部件之间的接触而避免发生短路现象。更进一步优选的技术方案为所述注塑层1的上部延伸至所述外壳8的外部与所述外壳8的外周卡接固定。这样，所述注塑层1将所述外壳8的开口处完全包覆住，增加了所述注塑层1和所述外壳8的密封性。
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。

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  1. 一种含软包电芯的电池，其特征在于：包括注塑层、导线组、软包电芯和外壳，所述注塑层的外周密封卡接于所述外壳的内周上，所述注塑层的内周密封卡接于所述软包电芯的外周上，所述注塑层与所述外壳围设形成有容纳所述软包电芯的空腔，所述软包电芯容纳在所述空腔内，所述导线组包括正导线和负导线，所述正导线的固定端和所述负导线的固定端均设置在所述外壳的内部且分别在对应位置处与所述软包电芯固定，所述正导线的自由端和所述负导线的自由端均延伸至所述外壳的外部，所述正导线和所述负导线夹角为0-180°。
  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：所述软包电芯包括软包电芯本体、间隔设置于所述软包电芯本体上的正极耳和负极耳，所述正极耳的固定端和所述负极耳的固定端分别与所述软包电芯本体连接，所述正极耳的自由端和所述负极耳的自由端分别固定于所述软包电芯本体的上表面。
  3. 根据权利要求2所述的一种含软包电芯的电池，其特征在于：所述正导线的固定端和所述正极耳的自由端在所述外壳的内部连接，所述负导线的固定端和所述负极耳的自由端在所述外壳的内部连接。
  4. 根据权利要求2所述的一种含软包电芯的电池，其特征在于：所述正极耳和所述负极耳的宽度均为1.0-5.0mm。
  5. 根据权利要求2-4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：所述软包电芯本体呈圆柱状或方形，所述软包电芯本体内设置有卷设于中心的卷绕件，所述正极耳的固定端和所述负极耳固定端均固定连接于所述卷绕件上，所述正极耳和所述负极耳均在与所述软包电芯本体的重叠位置处固定连接于所述软包电芯本体外周，所述正极耳的自由端和所述负极耳的自由端均沿所述软包电芯本体的外周延伸至所述软包电芯本体的上表面。
  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 铝塑膜层边缘之间密封热压式固定连接，所述电解液充设于所述上铝塑膜层和所述下铝塑膜层围设形成的腔体内，所述正极耳在与所述上铝塑膜层和所述下铝塑膜层的重叠位置处与所述上铝塑膜层和所述下铝塑膜层三层式固定，所述负极耳在与所述上铝塑膜层和所述下铝塑膜层的重叠位置处与所述上铝塑膜层和所述下铝塑膜层三层式固定。
  7. 根据权利要求6所述的一种含软包电芯的电池，其特征在于：所述正极耳的自由端和所述负极耳的自由端均通过双面胶粘设于所述上铝塑膜层的外表面。
  8. 根据权利要求6所述的一种含软包电芯的电池，其特征在于：所述上铝塑膜层外周向外延伸设置有上延伸层，所述下铝塑膜层外周向外延伸设置有下延伸层，所述上延伸层和所述下延伸层设有密封热压形成的花纹，所述上延伸层和所述下延伸层均沿所述软包电芯本体的直边延伸至所述软包电芯本体的顶部。
  9. 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：所述外壳由不锈钢材料制成。
  10. 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：所述注塑层由热熔胶制成。
PCT/CN2020/070766 2019-11-27 2020-01-07 一种含软包电芯的电池 WO2021103292A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN213184390U (zh) * 2020-06-23 2021-05-11 曙鹏科技（深圳）有限公司 扣式软包电芯及纽扣电池
WO2022000424A1 (zh) * 2020-07-02 2022-01-06 宁德新能源科技有限公司 电池及电子装置
CN112366396A (zh) * 2020-10-13 2021-02-12 新余赣锋电子有限公司 一种扣式电池
CN114976399B (zh) * 2022-05-20 2024-01-26 华勤技术股份有限公司 软包扣式电池模块、发声装置及电子设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108172700A (zh) * 2017-12-15 2018-06-15 珠海微矩实业有限公司 纽扣电池及其制作方法
CN109546017A (zh) * 2018-11-21 2019-03-29 新余赣锋电子有限公司 一种含软包电芯的电池
CN209119242U (zh) * 2018-12-11 2019-07-16 深圳市格瑞普电池有限公司 扣式锂离子电池
CN209496973U (zh) * 2019-01-31 2019-10-15 新余赣锋电子有限公司 一种含软包电芯的电池

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108172700A (zh) * 2017-12-15 2018-06-15 珠海微矩实业有限公司 纽扣电池及其制作方法
CN109546017A (zh) * 2018-11-21 2019-03-29 新余赣锋电子有限公司 一种含软包电芯的电池
CN209119242U (zh) * 2018-12-11 2019-07-16 深圳市格瑞普电池有限公司 扣式锂离子电池
CN209496973U (zh) * 2019-01-31 2019-10-15 新余赣锋电子有限公司 一种含软包电芯的电池

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