WO2019161594A1 - 一种扣式聚合物锂离子电池及制造方法 - Google Patents
一种扣式聚合物锂离子电池及制造方法 Download PDFInfo
- Publication number
- WO2019161594A1 WO2019161594A1 PCT/CN2018/081586 CN2018081586W WO2019161594A1 WO 2019161594 A1 WO2019161594 A1 WO 2019161594A1 CN 2018081586 W CN2018081586 W CN 2018081586W WO 2019161594 A1 WO2019161594 A1 WO 2019161594A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- metal conductor
- lithium ion
- ion battery
- casing
- Prior art date
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 16
- 229920000642 polymer Polymers 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 47
- 239000004020 conductor Substances 0.000 claims abstract description 44
- 238000004804 winding Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000002955 isolation Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 claims description 4
- 229920006255 plastic film Polymers 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 239000004033 plastic Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
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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
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- 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
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/109—Primary casings; Jackets or wrappings characterised by their shape or physical structure of button or coin shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/121—Organic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/191—Inorganic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/179—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the invention relates to the field of lithium batteries, in particular to a button polymer lithium ion battery.
- This invention relates to the field of manufacturing lithium ion batteries.
- the button battery is a relatively common battery, which is active in various fields.
- the traditional button battery needs to be installed in the outer casing.
- the outer casing is an outer casing insulated from each other, and then the electrode tab is welded to the outer casing. At both ends, the positive and negative electrodes are prevented from being short-circuited.
- it is difficult to solder the electrode tabs to both ends of the casing which is prone to failure and scrapping, and the production is troublesome, and the conventional button-type battery uses stacked electrodes and the amount of electricity storage. Lower.
- an object of the present invention is to provide a button battery which is simpler to manufacture and has a higher storage capacity.
- a button polymer lithium ion battery comprising:
- a housing composed of two or more outer casings, wherein a cavity is formed in the housing;
- An isolation device located between the positive electrode and the negative electrode for preventing direct contact between the positive electrode and the negative electrode;
- At least two metal conductors one of the metal conductors being electrically connected to the at least one positive electrode, and the other metal conductor being electrically connected to the at least one negative electrode, the metal conductor extending through one of the sides of the housing to The outside of the housing.
- the outer casing is made of a metal material
- the metal conductor is further provided with an insulating device capable of preventing the metal conductor from coming into contact with the casing.
- the outer casing is made of an aluminum plastic film.
- the isolating device is a separator.
- the shape of the wound electrode is a cylinder.
- the metal conductor is a metal foil.
- a method for manufacturing a button polymer lithium ion battery is as follows:
- the positive electrode, the isolating device and the negative electrode are sequentially stacked in the order of the positive electrode, the isolating device, the negative electrode, and the isolating device, and then wound into a wound electrode by a winding device;
- the wound electrode in a recess of one of the outer casings, joining all the outer casings, the metal conductor may extend to the outside of the outer casing, and the insulating device is located between the metal conductor and the outer casing;
- the manufacturing method of the outer casing is:
- outer casings punching two or more grooved outer casings by punching equipment, the outer casings further comprising a connecting joint between the outer casings, and all the outer casings are turned and joined together to form a casing with a cavity, all The outer casing also includes a flank on the face that is joined together.
- the invention has the beneficial effects that the invention comprises a wound electrode, at least two outer casings, a metal conductor, and a positive electrode and a negative electrode are formed by connecting a metal conductor to the positive and negative electrodes of the wound electrode, and then the wound electrode is It is housed in one of the outer casings, and the metal conductor can be extended to the outside of the outer casing, and then the remaining outer casings are joined together, and all the outer casings are sealed by heat sealing.
- the wound electrode can store more power and is more convenient to manufacture, eliminating the need to solder the electrode to the inside of the casing.
- FIG. 1 is a schematic structural view of a wound electrode according to a first embodiment of the present invention
- FIG. 2 is a schematic structural view of a wound electrode of the first embodiment of the present invention after being mounted in a casing;
- FIG. 3 is a schematic structural view of the first embodiment of the present invention after heat sealing the outer side of the outer casing;
- FIG. 4 is a schematic structural view of a finished product according to a second embodiment of the present invention.
- Figure 5 is a schematic view showing the structure of a wound electrode according to a second embodiment of the present invention.
- FIG. 6 is a schematic structural view of a winding electrode according to a second embodiment of the present invention after being mounted in a casing;
- FIG. 7 is a schematic structural view of a second embodiment of the present invention after heat-sealing the outer side of the outer casing;
- FIG. 8 is a schematic structural view of a finished product according to a second embodiment of the present invention.
- Figure 9 is a schematic view showing the structure of a preferred housing of the present invention.
- a button-type polymer lithium ion battery includes: a casing composed of two or more outer casings, a cavity formed in the casing; and a wound electrode 10 having a spiral shape
- the winding electrode 10 includes at least one positive electrode and at least one negative electrode, the wound electrode 10 is disposed in the cavity; and an isolating device is disposed between the positive electrode and the negative electrode to prevent
- the positive electrode is in direct contact with the negative electrode, and the isolating device is preferably a separator, and secondarily preferably an isolation frame; at least two metal conductors 20, wherein one metal conductor 20 is electrically connected to at least one positive electrode, and the other metal conductor 20 is electrically connected to at least one negative electrode, and the metal conductor 20 extends through one of the sides of the housing to the outside of the housing.
- the metal conductor 20 is connected to the positive and negative electrodes to form positive and negative electrodes for winding the electrode 10.
- the metal conductor 20 is preferably a metal foil.
- the material of the outer casing 40 may be selected from a material such as plastic, and is preferably a metal-based material in view of strength and use problems, and is preferably made of an aluminum-plastic film in view of convenience in manufacture.
- the positive and negative electrodes cannot be short-circuited, so that the metal conductor 20 is sheathed with an insulating device 30 capable of preventing the metal conductor 20 from coming into contact with the casing, thereby preventing The negative electrode ear is short-circuited after contact with the housing, and the insulating device 30 is preferably a rubber sleeve, and the second preferred is an insulating plastic.
- the metal conductor 20 may be attached to the positive electrode and the negative electrode prior to winding, preferably by soldering, and secondarily preferably by bolting.
- the wound electrode 10 is preferably wound into a cylinder.
- a method for preparing the above button polymer lithium ion battery is as follows:
- the outer casing 40 is two, and the method is preferably that the aluminum plastic film is punched out of the two recessed outer casings 40 by a punching device, the grooves are all semi-cylindrical, and the two outer casings 40 pass through a joint 60.
- the two outer casings 40 are oppositely rotated, a housing having a cavity is formed, and the two outer casings 40 further include a flange 50 on the mutually contacting surface, and the extension 50 is used to enlarge the two outer casings 40. The area of contact between them is thus better sealed after flattening.
- At least one metal conductor 20 with an insulating device 30 is electrically connected to the negative electrode.
- the positive electrode, the isolating device and the negative electrode are wound into a wound electrode 10 in the order of a positive electrode, an isolating device, a negative electrode, and an isolating device by a winding device.
- the wound electrode 10 is placed in a recess of one of the outer casings 40, and all the outer casings 40 are joined together.
- the metal conductor 20 may extend outside the outer casing 40, and the insulating device 30 is located between the metal conductor 20 and the outer casing 40.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
一种扣式聚合物锂离子电池及制造方法，包括卷绕电极（10），至少两个外壳（40），金属导体（20），通过将金属导体（20）与所述卷绕电极（10）的正负极连接，形成正极耳和负极耳，然后将卷绕电极（10）装入其中一个外壳（40）中，所述金属导体（20）刚好可以延伸至外壳（40）的外部，然后盖上其余的外壳（40），通过热封对所有外壳（40）进行密封。相对于现有技术而言，卷绕电极所能储存的电量更大，且制造更为方便，省去了将电极焊接至外壳内侧的工序。
Description
技术领域
本发明涉及锂电池领域，特别是一种扣式聚合物锂离子电池。
本发明涉及锂离子电池的制造领域。
技术背景
扣式电池是一种比较常见的电池，活跃在各个领域，传统的扣式电池，需要将电芯装入外壳内，所述外壳为两端相互绝缘的外壳，然后将电极极耳焊接于外壳的两端，防止正负电极短接，然而将电极极耳焊接于外壳两端较为困难，容易出现失误出现报废，生产较为麻烦，且传统的扣式电池多使用的是堆叠电极，电量存储量较低。
发明内容
为了解决上述技术问题，本发明的目的在于提供一种制造更为简单，储电量较高的扣式电池。
本发明为解决问题所述采用的技术方案是：
一种扣式聚合物锂离子电池，包括：
壳体，所述壳体由两个以上的外壳组成，所述壳体内形成一个容腔；
卷绕电极，所述卷绕电极呈螺旋状，所述卷绕电极上包括至少一个正电极以及至少一个负电极，该卷绕电极设置于所述容腔内；
隔离装置，所述隔离装置位于正电极与负电极之间，用以防止正电极与负电极直接接触；
至少两根金属导体，其中一根金属导体与至少一个正电极电性连接，另一根金属导体与至少一个负电极电性连接，所述金属导体穿过所述壳体的其中一个侧面延伸至所述壳体外部。
作为上述技术方案的进一步改进，所述外壳为金属材料制成，所述金属导体上还套设有一个能防止金属导体与壳体接触的绝缘装置。
作为上述技术方案的进一步改进，所述外壳为铝塑膜制成。
作为上述技术方案的进一步改进，所述隔离装置为隔离膜。
作为上述技术方案的进一步改进，所述卷绕电极的形状为圆柱体。
作为上述技术方案的进一步改进，所述金属导体为金属箔。
一种用于制造扣式聚合物锂离子电池的方法，方法如下：
a.准备正电极，负电极，带有绝缘装置的金属导体，隔离装置，至少两个外壳，所述外壳上设置有凹槽；
b将至少一根带有绝缘装置的金属导体与正电极电性连接；
将至少一根带有绝缘装置的金属导体与负电极电性连接；
c.将正电极，隔离装置和负电极以正电极、隔离装置、负电极、隔离装置的顺序依次层叠起来，然后通过卷绕设备卷绕成卷绕电极；
d.将卷绕电极放入其中一个外壳的凹槽中，将所有外壳拼合，所述金属导体可以延伸至外壳外侧，所述绝缘装置位于金属导体与外壳之间；
e.将所有外壳之间进行密封成壳体，从而得到需要的产品。
作为上述技术方案的进一步改进，所述外壳的制造方法为：
a.准备外壳的材料；
b.通过冲压设备对材料冲压出两个以上带有凹槽的外壳，所述外壳之间还包括一相连的连边，所有外壳相向转动拼合即可形成一个带有容腔的壳体，所有外壳在拼合接触的面上还包括有延边。
本发明的有益效果是：本发明包括卷绕电极，至少两个外壳，金属导体，通过将金属导体与所述卷绕电极的正负极连接，形成正极耳和负极耳，然后将卷绕电极装入其中一个外壳中，所述金属导体刚好可以延伸至外壳的外部，然后拼合上其余的外壳，通过热封对所有外壳进行密封即可。相对于现有技术而言，卷绕电极所能储存的电量更大，且制造更为方便，省去了将电极焊接至外壳内侧的工序。
附图说明
下面结合附图和具体实施方式对本发明作进一步详细的说明。
图1为本发明第一种实施案例的卷绕电极结构示意图；
图2为本发明第一种实施案例的卷绕电极安装于外壳内后的结构示意图；
图3为本发明第一种实施案例将外壳外的延边热封后的结构示意图；
图4为本发明第二种实施案例的成品结构示意图；
图5为本发明第二种实施案例的卷绕电极结构示意图；
图6为本发明第二种实施案例的卷绕电极安装于外壳内后的结构示意图；
图7为本发明第二种实施案例将外壳外的延边热封后的结构示意图；
图8为本发明第二种实施案例的成品结构示意图；
图9为本发明优选壳体的结构示意图。
具体实施方式
一种扣式聚合物锂离子电池，包括：壳体，所述壳体由两个以上的外壳组成，所述壳体内形成一个容腔；卷绕电极10，所述卷绕电极呈螺旋状，所述卷绕电极10上包括至少一个正电极以及至少一个负电极，该卷绕电极10设置于所述容腔内；隔离装置，所述隔离装置位于正电极与负电极之间，用以防止正电极与负电极直接接触，所述隔离装置优选为隔离膜，次优选为隔离框架；至少两根金属导体20，其中一根金属导体20与至少一个正电极电性连接，另一根金属导体20与至少一个负电极电性连接，所述金属导体20穿过所述壳体的其中一个侧面延伸至所述壳体外部。所述金属导体20与正负电极连接后形成了卷绕电极10的正负极耳，所述金属导体20优选为金属箔。所述外壳40的材料可选择塑料等材料，考虑到强度以及使用问题，优选为金属类材料，考虑到制造的方便性，最优选为铝塑膜制成。当使用金属类材料作为外壳40时，考虑到正负极耳不能短接，因此在所述金属导体20上套设有一个能防止金属导体20与壳体接触的绝缘装置30，从而防止因为正负极耳与壳体接触后造成短接，所述绝缘装置30优选为橡胶套，次优选为绝缘塑料。
所述金属导体20可以在卷绕前就连接于正电极以及负电极上，所述连接方式优选为焊接，次优选为螺栓连接。所述卷绕电极10优选为卷绕成圆柱体。
一种用于制备上述扣式聚合物锂离子电池的方法，方法如下：
a.准备正电极，负电极，带有绝缘装置30的金属导体，隔离装置，至少两个外壳40，所述外壳上设置有凹槽；
所述外壳40优选为两个，所用方法优选为用冲压设备将铝塑膜冲出两个带有凹槽的外壳40，所述凹槽均为半圆柱体，两外壳40间通过一连边60相连接，两个外壳40相向转动拼合即可形成一个带有容腔的壳体，两个外壳40在相互接触的面上还包括有延边50，所述延边50用于增大两个外壳40之间的接触面积，从而在拼合后更好的进行密封。
b.将至少一根带有绝缘装置30的金属导体20与正电极电性连接；
将至少一根带有绝缘装置30的金属导体20与负电极电性连接。
c.将正电极，隔离装置和负电极通过卷绕设备以正电极、隔离装置、负电极、隔离装置的顺序卷绕成卷绕电极10。
d.
将卷绕电极10放入其中一个外壳40的凹槽中，将所有外壳40拼合，所述金属导体20可以延伸至外壳40外侧，所述绝缘装置30位于金属导体20与外壳40之间
e.将所有外壳40之间进行密封，优选为通过加热加压两个外壳40之间的延边50从而将所述两个外壳40之间进行密封，然后将多余的延边50剪去，折叠包好。
以上仅为本发明的优选实施案例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接或间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。
Claims (8)
- 一种扣式聚合物锂离子电池，其特征在于，包括：壳体，所述壳体由两个以上的外壳（40）组成，所述壳体内形成一个容腔；卷绕电极（10），所述卷绕电极呈螺旋状，所述卷绕电极（10）上包括至少一个正电极和至少一个负电极，该卷绕电极（10）设置于所述容腔内；隔离装置，所述隔离装置位于正电极与负电极之间，用以防止正电极与负电极直接接触；至少两根金属导体（20），其中一根金属导体（20）与至少一个正电极电性连接，另一根金属导体（20）与至少一个负电极电性连接，所述金属导体（20）穿过所述壳体的其中一个侧壁延伸至所述壳体外部。
- 如权利要求1所述的一种扣式聚合物锂离子电池，其特征在于：所述外壳（40）为金属材料制成，所述金属导体（20）上还套设有一个能防止金属导体（20）与壳体接触的绝缘装置（30）。
- 如权利要求2所述的一种扣式聚合物锂离子电池，其特征在于：所述外壳（40）为铝塑膜制成。
- 如权利要求1所述的一种扣式聚合物锂离子电池，其特征在于：所述隔离装置为隔离膜。
- 如权利要求1所述的一种扣式聚合物锂离子电池，其特征在于：所述卷绕电极（10）的形状为圆柱体。
- 如权利要求1所述的一种扣式聚合物锂离子电池，其特征在于：所述金属导体（20）为金属箔。
- 一种用于制造扣式聚合物锂离子电池的方法，其特征在于：a.准备正电极，负电极，带有绝缘装置（30）的金属导体，隔离装置，至少两个外壳，所述外壳上设置有凹槽；b将至少一根带有绝缘装置（30）的金属导体（20）与正电极电性连接；将至少一根带有绝缘装置（30）的金属导体（20）与负电极电性连接；c.将正电极，隔离装置和负电极以正电极、隔离装置、负电极、隔离装置的顺序依次层叠起来，然后通过卷绕设备卷绕成卷绕电极（10）；d.将卷绕电极（10）放入其中一个外壳（40）的凹槽中，将所有外壳（40）拼合，所述金属导体（20）可以延伸至外壳（40）外侧，所述绝缘装置（30）位于金属导体（20）与外壳（40）之间；e.将所有外壳（40）之间进行密封成壳体，从而得到需要的产品。
- 如权利要求7的方法，其特征在于：所述外壳（40）的制造方法为：a.准备外壳（40）的材料；b.通过冲压设备对材料冲压出两个以上带有凹槽的外壳（40），所述外壳之间还包括一相连的连边（60），所有外壳（40）相向转动拼合即可形成一个带有容腔的壳体，所有外壳（40）在拼合接触的面上还包括有延边（50）。
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| CN109830745A (zh) * | 2019-01-23 | 2019-05-31 | 广东美尼科技有限公司 | 一种凝胶扣式软包装锂电池及制备工艺 |
| CN110783615B (zh) * | 2019-08-06 | 2023-05-02 | 松栢投资有限公司 | 软包扣式锂电池的制造方法以及软包扣式锂电池 |
| WO2021065340A1 (ja) * | 2019-09-30 | 2021-04-08 | 株式会社村田製作所 | 二次電池およびその製造方法 |
| CN111129367A (zh) * | 2019-12-30 | 2020-05-08 | 广东微电新能源有限公司 | 一种储能装置以及储能装置的组装方法 |
| CN112952242B (zh) * | 2021-03-31 | 2022-10-21 | 东莞新能德科技有限公司 | 电芯组件、电池模组及电子设备 |
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