WO2022057484A1 - 降低电磁辐射的锂离子电池 - Google Patents

降低电磁辐射的锂离子电池 Download PDF

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Publication number
WO2022057484A1
WO2022057484A1 PCT/CN2021/110554 CN2021110554W WO2022057484A1 WO 2022057484 A1 WO2022057484 A1 WO 2022057484A1 CN 2021110554 W CN2021110554 W CN 2021110554W WO 2022057484 A1 WO2022057484 A1 WO 2022057484A1
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Prior art keywords
ion battery
lithium
degaussing circuit
cover plate
lithium ion
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PCT/CN2021/110554
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English (en)
French (fr)
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陈国�
罗家文
薛云峰
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常州微宙电子科技有限公司
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Publication of WO2022057484A1 publication Critical patent/WO2022057484A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • 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
    • H01M10/05—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
    • 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 utility model relates to the technical field of lithium ion batteries, in particular to a lithium ion battery that reduces electromagnetic radiation.
  • Portable electronic equipment is not only a hardware device, but also achieves powerful functions through software support, data interaction, and cloud interaction.
  • smartphones laptops, tablets, smart watches, wireless Bluetooth headsets, smart helmets, smart glasses and more.
  • These products increasingly use wireless devices for communication, entertainment, business and information exchange.
  • These portable products generally contain lithium-ion batteries for power supply and many other electronic devices, such as antennas, wireless charging modules, speakers, PCB circuit boards, etc.
  • the main function of lithium-ion batteries is to store energy and power these electronic devices, but during the charging and discharging process, a weak electromagnetic field is generated and electromagnetic radiation is formed, which in most cases does not affect the operation of electronic devices. .
  • the electromagnetic field generated by the lithium-ion battery will interfere with the operation of other electronic devices, so it is necessary to reduce the electromagnetic radiation of the lithium-ion battery.
  • the technical problem to be solved by the present utility model is: in order to solve the technical problem that the electromagnetic field generated by the lithium ion battery will interfere with the operation of other electronic devices in the prior art, the present utility model provides a lithium ion battery that reduces electromagnetic radiation. Connect a degaussing circuit on the lithium-ion battery, or design a degaussing circuit on the lithium-ion battery body assembly, thereby reducing or eliminating the electromagnetic radiation of the lithium-ion battery.
  • a lithium ion battery for reducing electromagnetic radiation comprising a lithium ion battery body and a degaussing circuit with winding coils, the degaussing circuit is connected with the lithium ion battery body, When the lithium-ion battery is charged and discharged, the electromagnetic field generated by the degaussing circuit of the winding coil is in the opposite direction to the electromagnetic field generated by the lithium-ion battery body. According to the direction and intensity of the electromagnetic field generated by the lithium-ion battery body, the winding direction and number of windings of the coil in the degaussing circuit are designed.
  • the degaussing circuit is externally placed on the lithium ion battery body, and the positive or negative electrode of the lithium ion battery body is connected to the degaussing circuit.
  • the degaussing circuit is built into the lithium-ion battery body.
  • the built-in structure of the degaussing circuit has the following preferred methods:
  • the lithium ion battery body includes a cover plate, a winding core, a casing and an insulating seal, the winding core is arranged in the casing, the cover plate is covered on the casing, and the winding core includes a positive electrode, a separator and a negative electrode and is formed by winding, It also has a positive lead and a negative lead, the positive lead is connected to the positive electrode of the cover plate, and the negative lead is connected to the casing. Between the negative electrode lead and the casing, the insulating seal is arranged between the cover plate and the casing.
  • the winding direction of the spiral winding structure only needs to ensure that when the current passes through the lithium-ion battery, the direction of the electromagnetic field generated by the degaussing circuit is opposite to the direction of the electromagnetic field formed inside the lithium-ion battery, so as to achieve the purpose of reducing or completely eliminating the electromagnetic radiation of the lithium-ion battery. .
  • the number of turns of the helically wound structure determines the strength of the electromagnetic field produced.
  • the lithium ion battery body includes a cover plate assembly, a winding core, a casing and an insulating seal.
  • the winding core is arranged in the casing, and the cover plate assembly is covered on the casing.
  • the winding core includes a positive electrode, a separator and a negative electrode and is formed by winding, and is provided with a positive electrode lead and a negative electrode lead, and the degaussing circuit is integrated in the cover plate assembly.
  • the cover plate assembly includes a metal layer and an insulating layer, the metal layer is fixed on the surface of the insulating layer, the degaussing circuit is arranged in the insulating layer, and one end of the degaussing circuit is connected to the metal layer through a conductive wire, and the degaussing circuit is The other end is connected to the winding core through a conductive wire.
  • the lithium ion battery body includes a cover plate, a winding core, a casing assembly and an insulating seal, the winding core is arranged in the casing assembly, the cover plate cover is arranged on the casing, and the winding core is arranged on the casing.
  • the positive electrode, the separator and the negative electrode are wound and formed with a positive electrode lead and a negative electrode lead, and the degaussing circuit is integrated in the bottom of the casing assembly.
  • the beneficial effect of the present invention is that the lithium ion battery with reduced electromagnetic radiation of the present invention reduces or completely eliminates the electromagnetic radiation of the lithium ion battery during the electrification process by adding a degaussing circuit with a winding coil. Therefore, the interference of the electromagnetic field generated during the operation of the lithium ion battery to other electronic devices is reduced or eliminated, and the design is ingenious and reasonable, the structure is compact, and the effect is remarkable.
  • FIG. 1 is a schematic structural diagram of Embodiment 1 of a lithium-ion battery for reducing electromagnetic radiation according to the present invention.
  • FIG. 2 is a schematic structural diagram of a degaussing circuit 2 of a lithium-ion battery that reduces electromagnetic radiation according to the present invention.
  • Embodiment 3 is a schematic structural diagram of Embodiment 2 of a lithium-ion battery for reducing electromagnetic radiation according to the present invention.
  • Embodiment 4 is a schematic structural diagram of Embodiment 3 of a lithium-ion battery for reducing electromagnetic radiation according to the present invention.
  • FIG. 5 is a schematic structural diagram of a cover plate assembly in Embodiment 3 of the present invention.
  • Lithium-ion battery body 11, cover plate, 12, winding core, 13, shell, 14, insulating seal, 2, degaussing circuit, 201, degaussing circuit board, 202, input end of degaussing circuit, 203 , Spiral coil structure, 204, Degaussing circuit output, 101, Cover plate assembly, 110, Metal layer, 111, Insulation layer.
  • a lithium-ion battery for reducing electromagnetic radiation comprising a lithium-ion battery body 1 and a degaussing circuit 2 with winding coils, the degaussing circuit 2 and the lithium-ion battery
  • the main body 1 is connected, and when the lithium ion battery is charged and discharged, the electromagnetic field generated by the degaussing circuit 2 of the winding coil is in the opposite direction to the electromagnetic field generated by the lithium ion battery body 1 .
  • the degaussing circuit 2 is placed outside the lithium ion battery body 1 , and the positive electrode of the lithium ion battery body 1 is connected to the degaussing circuit 2 .
  • the degaussing circuit 2 includes a degaussing circuit board 201 and a helical coil structure 203 mounted on the degaussing circuit board 201.
  • the helical coil structure 203 has a degaussing circuit input end 202 and a degaussing circuit output end 204.
  • the degaussing circuit input 202 is connected.
  • the polarity of the positive cap and the negative can be switched. Can also be turned into a negative cover and a positive case
  • a degaussing circuit 2 is added to the ordinary lithium-ion battery, and one pole (positive or negative) of the lithium-ion battery is connected to the input terminal on the degaussing circuit board.
  • the degaussing circuit consists of a helical coil. When the current passes through the loop, the degaussing circuit 2 will generate an electromagnetic field, which is opposite to the direction of the electromagnetic field formed inside the lithium-ion battery, so as to achieve the purpose of reducing the electromagnetic radiation of the lithium-ion battery.
  • the routing direction and number of turns of the coil in the degaussing circuit are designed according to the direction and strength of the electromagnetic field of the lithium-ion battery.
  • the purpose of reducing or completely eliminating the electromagnetic radiation of lithium-ion batteries can be achieved.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • a lithium ion reducing electromagnetic radiation includes a lithium ion battery body 1 and a degaussing circuit 2 with a winding coil.
  • the electromagnetic field generated by the degaussing circuit 2 of the winding coil The direction of the electromagnetic field generated by the lithium-ion battery body 1 is opposite.
  • the degaussing circuit 2 is built in the lithium ion battery body 1 .
  • the lithium ion battery body includes a cover plate 11, a winding core 12 and a casing 13.
  • the winding core 12 is arranged in the casing 13, the cover plate 11 is covered on the casing 13, and the insulating seal 14 is arranged on the cover plate 11 and the casing.
  • the winding core 12 includes a positive electrode, a separator and a negative electrode, and is formed by winding a positive electrode lead and a negative electrode lead.
  • the positive electrode lead is connected to the positive electrode of the cover plate 11, and the negative electrode lead is connected to the casing 13.
  • the plate 201 and the helical coil structure 203 mounted on the degaussing circuit board 201.
  • the helical coil structure 203 has a degaussing circuit input end 202 and a degaussing circuit output end 204, and the positive cover of the lithium ion battery body 1 is in phase with the degaussing circuit input end 202. connect.
  • the degaussing circuit input end 202 of the degaussing circuit 2 is connected to the cover plate 11 , and the degaussing circuit output end 204 is connected to the positive lead of the winding core 12 .
  • the degaussing circuit 2 may also be provided between the negative lead provided in the winding core 12 and the case.
  • a degaussing circuit 2 is added to the ordinary lithium ion battery, and one pole (positive or negative) of the lithium ion battery winding core is connected to the degaussing circuit 2 .
  • the degaussing circuit 2 consists of a helical coil. When the current passes through the loop, the degaussing circuit 2 will generate an electromagnetic field, which is opposite to the direction of the electromagnetic field formed inside the lithium-ion battery, so as to achieve the purpose of reducing the electromagnetic radiation of the lithium-ion battery.
  • the lithium ion battery body includes a cover plate assembly 101, a winding core 12, a casing 13 and an insulating seal 14, the winding core 12 is arranged in the casing 13, and the cover plate
  • the assembly 101 is covered on the casing 13
  • the winding core 12 includes a positive electrode, a separator and a negative electrode, and is formed by winding a positive electrode lead and a negative electrode lead.
  • the degaussing circuit 2 is integrated in the cover plate assembly 101 .
  • the cover plate assembly 101 includes a metal layer 110 and an insulating layer 111.
  • the metal layer 110 is fixed on the surface of the insulating layer 111.
  • the degaussing circuit 2 is arranged in the insulating layer 111.
  • the degaussing circuit 2 has a spiral coil structure, and one end of the spiral coil passes through.
  • the conductive wire is connected to the metal layer 110 , the other end of the spiral coil is connected to the positive lead of the winding core 12 through the conductive wire, and the negative lead of the winding core 12 is connected to the casing 13 .
  • the outer periphery of the insulating layer 111 is connected to the insulating seal 14 .
  • the degaussing circuit 2 can also be integrated in the housing 13 via an insulating layer.
  • the degaussing circuit 2 is arranged in the cover plate or casing of the lithium ion battery body 1 to form a corresponding cover plate assembly or casing assembly.
  • the cover plate is composed of a metal layer 110 and an insulating layer 111 and is formed into one body, and the degaussing circuit 2 is embedded In the insulating layer 111 , the output end of the degaussing circuit 2 is connected to the metal layer of the cover plate, and the input end of the degaussing circuit 2 is connected to one pole of the winding core in the lithium ion battery body.
  • the lithium-ion battery thus formed has a more compact structure and lower space utilization.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种降低电磁辐射的锂离子电池，包括锂离子电池本体（1）和带有绕组线圈的消磁电路（2），消磁电路（2）与锂离子电池本体（1）相连接，锂离子电池充放电时，绕组线圈的消磁电路（2）产生的电磁场与锂离子电池本体（1）产生的电磁场方向相反。上述降低电磁辐射的锂离子电池通过增加带有绕组线圈的消磁电路（2），使得锂离子电池在通电过程中，减弱或完全消除锂离子电池的电磁辐射，从而降低或消除锂离子电池工作过程中产生的电磁场对其他电子器件的工作干扰，设计巧妙合理，结构紧凑，效果显著。

Description

降低电磁辐射的锂离子电池 技术领域
本实用新型涉及锂离子电池技术领域，尤其涉及一种降低电磁辐射的锂离子电池。
背景技术
随着科技的不断的发展，便携式电子设备的发展日新月异并对我们的生活带来很大的转变。便携式电子设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。如智能手机，便携式电脑，平板电脑，智能腕表，无线蓝牙耳机，智能头盔，智能眼镜等等。这些产品越来越多地使用无线器件用于通讯，娱乐，商务及信息交换。这些便携式产品一般均含有用于供电的锂离子电池及许多其它电子器件，如天线，无线充电模块，喇叭，PCB电路板等。锂离子电池的主要功能是用于存储能量并给这些电子器件供电，但是在充放电过程中会产生微弱的电磁场并形成电磁辐射，这些电磁辐射大多数情况下不会对电子器件的工作形成影响。但是随着便携式电子产品的设计越来越紧凑，在越来越多的应用场合，锂离子电池产生的电磁场会对其它电子器件的工作形成干扰，因此有必要降低锂离子电池的电磁辐射。
实用新型内容
本实用新型要解决的技术问题是：为了解决现有技术中锂离子电池产生的电磁场会对其它电子器件的工作形成干扰的技术问题，本实用新型提供一种降低电磁辐射的锂离子电池，通过在锂离子电池上连接消磁电路，或通过在锂离子电池本体组件上设计消磁电路，从而减弱或消除锂离子电池的电磁辐射。
本实用新型解决其技术问题所采用的技术方案是：一种降低电磁辐射的锂离子电池，包括锂离子电池本体和带有绕组线圈的消磁电路，所述消磁电路与锂离子电池本体相连接，锂离子电池充放电时，绕组线圈的消磁电路产生的电磁场与锂离子电池本体产生的电磁场方向相反。通过锂离子电池本体产生的电磁场方向及强度，设计消磁电路中线圈的绕线方向及绕线圈数。
为了便于安装，所述消磁电路外置于锂离子电池本体，锂离子电池本体的正极或负极与消磁电路连接。
为了使得锂离子电池结构紧凑，所述消磁电路内置于锂离子电池本体。消磁电路内置的结构有以下几种优选方式：
所述锂离子电池本体包括盖板、卷芯、壳体和绝缘密封件，卷芯设置在壳体内，盖板盖设在壳体上，所述卷芯包括正极、隔膜和负极卷绕形成，并带有正极引线和负极引线，正极引线与盖板的正极连接，负极引线与壳体连接，所述消磁电路呈螺旋状线圈结构，消磁电路设置在正极引线与盖板之间，或者设置在负极引线与壳体之间，所述绝缘密封件设在盖板和壳体之间。螺旋卷绕结构的卷绕方向只要保证，电流通过锂离子电池时，消磁电路产生的电磁场方向与锂离子电池内部形成的电磁场方向相反即可，从而达到减少或完全消除 锂离子电池电磁辐射的目的。螺旋卷绕结构的圈数可决定产生的电磁场强度。
为了使得锂电子电池的结构紧凑，体积小，锂离子电池本体包括盖板组件、卷芯、壳体和绝缘密封件，卷芯设置在壳体内，盖板组件盖设在壳体上，所述卷芯包括正极、隔膜和负极卷绕形成，并带有正极引线和负极引线，所述消磁电路集成在盖板组件内。
进一步，具体地，所述盖板组件包括金属层和绝缘层，金属层固定在绝缘层的表面上，消磁电路设置在绝缘层内，消磁电路的一端通过导电线和金属层连接，消磁电路的另一端通过导电线和卷芯相连接。
进一步，作为另一种优选方式，锂离子电池本体包括盖板、卷芯、壳体组件和绝缘密封件，卷芯设置在壳体组件内，盖板盖设在壳体上，所述卷芯包括正极、隔膜和负极卷绕形成，并带有正极引线和负极引线，消磁电路集成在壳体组件的底部内。
本实用新型的有益效果是，本实用新型的降低电磁辐射的锂离子电池，通过增加带有绕组线圈的消磁电路，使得锂离子电池在通电过程中，减弱或完全消除锂离子电池的电磁辐射，从而降低或消除锂离子电池工作过程中产生的电磁场对其他电子器件的工作干扰，设计巧妙合理，结构紧凑，效果显著。
附图说明
下面结合附图和实施例对本实用新型进一步说明。
图1是本实用新型一种降低电磁辐射的锂离子电池的实施例一的结构示意图。
图2是本实用新型一种降低电磁辐射的锂离子电池的消磁电路2的结构示意图。
图3是本实用新型一种降低电磁辐射的锂离子电池的实施例二的结构示意图。
图4是本实用新型一种降低电磁辐射的锂离子电池的实施例三的结构示意图。
图5是本实用新型实施例三中盖板组件的结构示意图。
图中：1、锂离子电池本体，11、盖板，12、卷芯，13、壳体，14、绝缘密封件，2、消磁电路，201、消磁电路板，202、消磁电路输入端，203、螺旋状线圈结构，204、消磁电路输出端，101、盖板组件，110、金属层，111、绝缘层。
具体实施方式
现在结合附图对本实用新型作进一步详细的说明。这些附图均为简化的示意图，仅以示意方式说明本实用新型的基本结构，因此其仅显示与本实用新型有关的构成。
如图1和2所示，是本实用新型的实施例一，一种降低电磁辐射的锂离子电池，包括锂离子电池本体1和带有绕组线圈的消磁电路2，消磁电路2与锂离子电池本体1相连接，锂离子电池充放电时，绕组线圈的消磁电路2产生的电磁场与锂离子电池本体1产生的电磁场方向相反。消磁电路2外置于锂离子电池本体1，锂离子电池本体1的正极与消磁电路2连接。
消磁电路2包括消磁电路板201和安装在消磁电路板201上的螺旋状线圈结构203，螺旋状线圈结构203具有消磁电路输入端202和消磁电路输出端204，锂离子电池本体1的正极盖和消磁电路输入端202相连接。
正极盖与负极壳极性可以切换。也可变成负极盖与正极壳
本实施例中，普通锂离子电池上增加了消磁电路2，锂离子电池的一极(正极或负极)与消磁电路板上的输入端连接。消磁电路由螺旋状线圈组成。在电流通过回路时，消磁 电路2会产生电磁场，与锂离子电池内部形成的电磁场方向相反，从而达到减少锂离子电池电磁辐射的目的。
根据需要消磁电路中线圈的走线方向及圈数根据锂离子电池的电磁场方向及强度进行设计。可达到减弱或者完全消除锂离子电池电磁辐射的目的。
实施例二：
如图2和图3所示，一种降低电磁辐射的锂离子，包括锂离子电池本体1和带有绕组线圈的消磁电路2，锂离子电池充放电时，绕组线圈的消磁电路2产生的电磁场与锂离子电池本体1产生的电磁场方向相反。消磁电路2内置于锂离子电池本体1。
锂离子电池本体包括盖板11、卷芯12和壳体13，卷芯12设置在壳体13内，盖板11盖设在壳体13上，绝缘密封件14设在盖板11和壳体13之间，卷芯12包括正极、隔膜和负极卷绕形成，并带有正极引线和负极引线，正极引线与盖板11的正极连接，负极引线与壳体13连接，消磁电路2包括消磁电路板201和安装在消磁电路板201上的螺旋状线圈结构203，螺旋状线圈结构203具有消磁电路输入端202和消磁电路输出端204，锂离子电池本体1的正极盖和消磁电路输入端202相连接。
消磁电路2的消磁电路输入端202与盖板11连接，消磁电路输出端204和卷芯12的正极引线连接。
消磁电路2也可以设置在设置在卷芯12的负极引线与壳体之间。
本实施例中，普通锂离子电池内增加了消磁电路2，锂离子电池卷芯一极(正极或负极)与消磁电路2连接。消磁电路2由螺旋状线圈组成。在电流通过回路时，消磁电路2会产生电磁场，与锂离子电池内部形成的电磁场方向相反，从而达到减少锂离子电池电磁辐射的目的。
实施例三：
如图4和5，一种降低电磁辐射的锂离子，锂离子电池本体包括盖板组件101、卷芯12、壳体13和绝缘密封件14，卷芯12设置在壳体13内，盖板组件101盖设在壳体13上，卷芯12包括正极、隔膜和负极卷绕形成，并带有正极引线和负极引线，消磁电路2集成在盖板组件101内。
盖板组件101包括金属层110和绝缘层111，金属层110固定在绝缘层111的表面上，消磁电路2设置在绝缘层111内，消磁电路2呈螺旋状线圈结构，螺旋状线圈的一端通过导电线和金属层110连接，螺旋状线圈的另一端通过导电线和卷芯12的正极引线相连接，卷芯12的负极引线和壳体13连接。绝缘层111的外周和绝缘密封件14连接。
也可以将消磁电路2通过绝缘层集成在壳体13内。
消磁电路2设于锂离子电池本体1的盖板或壳体之内，形成相应的盖板组件或壳体组件，如盖板由金属层110及绝缘层111组成并形成一体，消磁电路2埋设于绝缘层111内，消磁电路2的输出端与盖板的金属层连接，消磁电路2的输入端与锂离子电池本体内的卷芯一极连接。这样形成的锂离子电池结构更紧凑，空间利用率更低。
以上述依据本实用新型的理想实施例为启示，通过上述的说明内容，相关工作人员完全可以在不偏离本项实用新型技术思想的范围内，进行多样的变更以及修改。本项实用新型的技术性范围并不局限于说明书上的内容，必须要根据权利要求范围来确定其技术性范围。

Claims (7)

  1. 一种降低电磁辐射的锂离子电池，其特征在于：包括锂离子电池本体(1)和带有绕组线圈的消磁电路(2)，所述消磁电路(2)与锂离子电池本体(1)相连接，锂离子电池充放电时，带有绕组线圈的消磁电路(2)产生的电磁场与锂离子电池本体(1)产生的电磁场方向相反。
  2. 如权利要求1所述的降低电磁辐射的锂离子电池，其特征在于：所述消磁电路(2)外置于锂离子电池本体(1)，锂离子电池本体(1)的正极或负极与消磁电路(2)连接。
  3. 如权利要求1所述的降低电磁辐射的锂离子电池，其特征在于：所述消磁电路(2)内置于锂离子电池本体(1)。
  4. 如权利要求3所述的降低电磁辐射的锂离子电池，其特征在于：所述锂离子电池本体包括盖板(11)、卷芯(12)、壳体(13)和绝缘密封件(14)，卷芯(12)设置在壳体(13)内，盖板(11)盖设在壳体(13)上，所述卷芯(12)包括正极、隔膜和负极卷绕形成，并带有正极引线和负极引线，正极引线与盖板(11)的正极连接，负极引线与壳体(13)连接，所述消磁电路(2)呈螺旋状线圈结构(203)，消磁电路(2)设置在正极引线与盖板(11)之间，或者设置在负极引线与壳体(13)之间，所述绝缘密封件(14)设在盖板(11)和壳体(13)之间。
  5. 如权利要求3所述的降低电磁辐射的锂离子电池，其特征在于：所述锂离子电池本体包括盖板组件(101)、卷芯(12)、壳体(13)和绝缘密封件(14)，卷芯(12)设置在壳体(13)内，盖板组件(101)盖设在壳体(13)上，所述卷芯(12)包括正极、隔膜和负极卷绕形成，并带有正极引线和负极引线，所述消磁电路(2)集成在盖板组件(101)内。
  6. 如权利要求5所述的降低电磁辐射的锂离子电池，其特征在于：所述盖板组件(101)包括金属层(110)和绝缘层(111)，金属层(110)固定在绝缘层(111)的表面上，消磁电路(2)设置在绝缘层(111)内，消磁电路(2)的一端通过导电线和金属层(110)连接，消磁电路(2)的另一端通过导电线和卷芯(12)相连接。
  7. 如权利要求3所述的降低电磁辐射的锂离子电池，其特征在于：所述锂离子电池本体包括盖板(11)、卷芯(12)、壳体组件和绝缘密封件(14)，卷芯(12)设置在壳体组件内，盖板(11)盖设在壳体组件上，所述卷芯(12)包括正极、隔膜和负极卷绕形成，并带有正极引线和负极引线，所述消磁电路(2)集成在壳体组件的底部内。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1251703A (zh) * 1997-04-03 2000-04-26 艾利森公司 降低无线电电话机磁场强度的设备和方法
CN102074725A (zh) * 2009-11-23 2011-05-25 捷讯研究有限公司 具有减小的磁漏的可再充电电池
CN105493336A (zh) * 2014-01-10 2016-04-13 罗伯特·博世有限公司 具有多个电化学电池组电池并具有用于测量两个不同的电池组电池的两个电池电流之间的差的设备的电池组包
US20190051881A1 (en) * 2017-08-11 2019-02-14 Kitty Hawk Corporation Series batteries to reduce an interfering magnetic field
CN213150851U (zh) * 2020-09-16 2021-05-07 常州微宙电子科技有限公司 降低电磁辐射的锂离子电池

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1251703A (zh) * 1997-04-03 2000-04-26 艾利森公司 降低无线电电话机磁场强度的设备和方法
CN102074725A (zh) * 2009-11-23 2011-05-25 捷讯研究有限公司 具有减小的磁漏的可再充电电池
CN105493336A (zh) * 2014-01-10 2016-04-13 罗伯特·博世有限公司 具有多个电化学电池组电池并具有用于测量两个不同的电池组电池的两个电池电流之间的差的设备的电池组包
US20190051881A1 (en) * 2017-08-11 2019-02-14 Kitty Hawk Corporation Series batteries to reduce an interfering magnetic field
CN213150851U (zh) * 2020-09-16 2021-05-07 常州微宙电子科技有限公司 降低电磁辐射的锂离子电池

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