CN213150851U - Lithium ion battery capable of reducing electromagnetic radiation - Google Patents

Lithium ion battery capable of reducing electromagnetic radiation Download PDF

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Publication number
CN213150851U
CN213150851U CN202022020954.2U CN202022020954U CN213150851U CN 213150851 U CN213150851 U CN 213150851U CN 202022020954 U CN202022020954 U CN 202022020954U CN 213150851 U CN213150851 U CN 213150851U
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China
Prior art keywords
lithium ion
ion battery
casing
circuit
electromagnetic radiation
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CN202022020954.2U
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Chinese (zh)
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陈国�
罗家文
薛云峰
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Changzhou Weizhou Electronic Technology Co ltd
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Changzhou Weizhou Electronic Technology Co ltd
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Priority to PCT/CN2021/110554 priority patent/WO2022057484A1/en
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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

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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)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model relates to a lithium ion battery technical field especially relates to a reduce electromagnetic radiation's lithium ion battery, including lithium ion battery body and the demagnetization circuit that has the winding coil, the demagnetization circuit is connected with the lithium ion battery body, and during lithium ion battery charge-discharge, the electromagnetic field that the demagnetization circuit of winding coil produced is opposite with the electromagnetic field direction that the lithium ion battery body produced. The utility model discloses a reduce electromagnetic radiation's lithium ion battery through increasing the demagnetization circuit that has the winding coil for lithium ion battery weakens or eliminates lithium ion battery's electromagnetic radiation completely at the circular telegram in-process, thereby reduces or eliminates the electromagnetic field that produces in the lithium ion battery working process and disturbs the work of other electron device, design benefit is reasonable, compact structure, and the effect is showing.

Description

Lithium ion battery capable of reducing electromagnetic radiation
Technical Field
The utility model relates to a lithium ion battery technical field especially relates to a reduce electromagnetic radiation's lithium ion battery.
Background
With the continuous development of science and technology, the development of portable electronic devices is changing day by day and brings great changes to our lives. The portable electronic device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. Such as smart phones, laptops, tablet computers, smart wristwatches, wireless bluetooth headsets, smart helmets, smart glasses, and the like. These products are increasingly using wireless devices for communication, entertainment, commerce 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 boards, etc. The main function of lithium ion batteries is to store energy and supply power to these electronic devices, but during charging and discharging, weak electromagnetic fields are generated and electromagnetic radiation is formed, which in most cases does not affect the operation of the electronic devices. However, as portable electronic products are designed to be more compact, in more and more applications, the electromagnetic field generated by the lithium ion battery interferes with the operation of other electronic devices, so that it is necessary to reduce the electromagnetic radiation of the lithium ion battery.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the technical problem that the electromagnetic field that lithium ion battery produced among the prior art can form the interference to the work of other electron device, the utility model provides a reduce electromagnetic radiation's lithium ion battery through connect demagnetization circuit on lithium ion battery, or through design demagnetization circuit on lithium ion battery body subassembly to weaken or eliminate lithium ion battery's electromagnetic radiation.
The utility model provides a technical scheme that its technical problem adopted is: a lithium ion battery capable of reducing electromagnetic radiation comprises a lithium ion battery body and a demagnetization circuit with a winding coil, wherein the demagnetization circuit is connected with the lithium ion battery body, and when the lithium ion battery is charged and discharged, an electromagnetic field generated by the demagnetization circuit of the winding coil is opposite to an electromagnetic field generated by the lithium ion battery body in direction. The direction and the intensity of an electromagnetic field generated by the lithium ion battery body are used for designing the winding direction and the number of winding turns of the coil in the degaussing circuit.
In order to facilitate installation, the demagnetization circuit is externally arranged on the lithium ion battery body, and the anode or the cathode of the lithium ion battery body is connected with the demagnetization circuit.
In order to make the structure of the lithium ion battery compact, the degaussing circuit is arranged in the lithium ion battery body. The built-in structure of the degaussing circuit has the following preferred modes:
the lithium ion battery body includes apron, book core, casing and insulating sealing member, and the book core sets up in the casing, and the apron lid is established on the casing, roll up the core and include positive pole, diaphragm and negative pole coiling formation to have positive lead wire and negative lead wire, positive lead wire is connected with the positive pole of apron, and the negative lead wire is connected with the casing, the demagnetization circuit is heliciform coil structure, and the demagnetization circuit sets up between positive lead wire and apron, perhaps sets up between negative lead wire and casing, insulating sealing member establishes between apron and casing. The winding direction of the spiral winding structure is ensured only by ensuring that when current passes through the lithium ion battery, the direction of an electromagnetic field generated by the demagnetization circuit is opposite to the direction of an electromagnetic field formed inside the lithium ion battery, so that the aim of reducing or completely eliminating the electromagnetic radiation of the lithium ion battery is fulfilled. The number of turns of the spiral wound structure may determine the strength of the electromagnetic field generated.
In order to make lithium ion battery's compact structure, small, lithium ion battery body includes apron subassembly, book core, casing and insulating seal, rolls up the core setting in the casing, and apron subassembly lid is established on the casing, it includes that positive pole, diaphragm and negative pole are convoluteed and is formed to roll up the core to have anodal lead wire and negative pole lead wire, demagnetization circuit integration is in the apron subassembly.
Further, specifically, the cover plate assembly comprises a metal layer and an insulating layer, the metal layer is fixed on the surface of the insulating layer, the demagnetization circuit is arranged in the insulating layer, one end of the demagnetization circuit is connected with the metal layer through a conducting wire, and the other end of the demagnetization circuit is connected with the winding core through a conducting wire.
Further, as another preferred mode, the lithium ion battery body includes apron, book core, casing subassembly and insulating sealing member, and the book core setting is in the casing subassembly, and the apron lid is established on the casing, roll up the core and include that positive pole, diaphragm and negative pole are convoluteed and are formed to have anodal lead wire and negative pole lead wire, degaussing circuit integration is in the bottom of casing subassembly.
The beneficial effects of the utility model are that, the utility model discloses a reduce electromagnetic radiation's lithium ion battery is through increasing the demagnetization circuit that has the winding coil for lithium ion battery weakens or eliminates lithium ion battery's electromagnetic radiation completely at the circular telegram in-process, thereby reduces or eliminates the electromagnetic field that produces in the lithium ion battery course of operation and disturbs the work of other electron devices, design benefit is reasonable, compact structure, and the effect is showing.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a first embodiment of the lithium ion battery for reducing electromagnetic radiation according to the present invention.
Fig. 2 is a schematic structural diagram of a demagnetization circuit 2 of a lithium ion battery for reducing electromagnetic radiation according to the present invention.
Fig. 3 is a schematic structural diagram of a second embodiment of the lithium ion battery for reducing electromagnetic radiation according to the present invention.
Fig. 4 is a schematic structural diagram of a third embodiment of the 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 the third embodiment of the present invention.
In the figure: 1. the lithium ion battery comprises a lithium ion battery body, 11, a cover plate, 12, a winding core, 13, a shell, 14, an insulating sealing piece, 2, a degaussing circuit, 201, a degaussing circuit board, 202, a degaussing circuit input end, 203, a spiral coil structure, 204, a degaussing circuit output end, 101, a cover plate assembly, 110, a metal layer, 111 and an insulating layer.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 and 2, it is a first embodiment of the present invention, a lithium ion battery with reduced electromagnetic radiation, including lithium ion battery body 1 and demagnetization circuit 2 with winding coil, demagnetization circuit 2 is connected with lithium ion battery body 1, and when lithium ion battery is charged and discharged, the electromagnetic field that demagnetization circuit 2 of winding coil produced is opposite to the electromagnetic field direction that lithium ion battery body 1 produced. The demagnetization circuit 2 is arranged outside the lithium ion battery body 1, and the anode of the lithium ion battery body 1 is connected with the demagnetization circuit 2.
The degaussing circuit 2 comprises a degaussing circuit board 201 and a spiral coil structure 203 arranged on the degaussing circuit board 201, the spiral coil structure 203 is provided with a degaussing circuit input end 202 and a degaussing circuit output end 204, and a positive cover of the lithium ion battery body 1 is connected with the degaussing circuit input end 202.
The polarity of the positive electrode cover and the negative electrode shell can be switched. Can also be changed into a negative electrode cover and a positive electrode shell
In this embodiment, a degaussing circuit 2 is added to a common lithium ion battery, and one pole (positive pole or negative pole) of the lithium ion battery is connected to an input terminal of the degaussing circuit board. The demagnetization circuit consists of spiral coils. When current passes through the loop, the demagnetizing circuit 2 can generate an electromagnetic field, which is opposite to the direction of the electromagnetic field formed inside the lithium ion battery, thereby achieving the purpose of reducing the electromagnetic radiation of the lithium ion battery.
The wiring direction and the number of turns of the coil in the demagnetization circuit are designed according to the electromagnetic field direction and the strength of the lithium ion battery. The purpose of weakening or completely eliminating the electromagnetic radiation of the lithium ion battery can be achieved.
Example two:
as shown in fig. 2 and fig. 3, a lithium ion for reducing electromagnetic radiation includes a lithium ion battery body 1 and a demagnetizing circuit 2 with a winding coil, wherein when the lithium ion battery is charged and discharged, an electromagnetic field generated by the demagnetizing circuit 2 with the winding coil is opposite to an electromagnetic field generated by the lithium ion battery body 1. The degaussing circuit 2 is built in the lithium ion battery body 1.
The lithium ion battery body includes apron 11, roll up core 12 and casing 13, roll up core 12 and set up in casing 13, apron 11 lid is established on casing 13, insulating seal 14 is established between apron 11 and casing 13, roll up core 12 and include the positive pole, diaphragm and negative pole coiling form, and have positive lead wire and negative lead wire, positive lead wire is connected with the positive pole of apron 11, the negative lead wire is connected with casing 13, demagnetization circuit 2 includes demagnetization circuit board 201 and the heliciform coil structure 203 of installing on demagnetization circuit board 201, heliciform coil structure 203 has demagnetization circuit input 202 and demagnetization circuit output 204, the positive plate of lithium ion battery body 1 is connected with demagnetization circuit input 202.
The input end 202 of the degaussing circuit 2 is connected with the cover plate 11, and the output end 204 of the degaussing circuit is connected with the anode lead of the winding core 12.
The demagnetization circuit 2 may be provided between the negative electrode lead of the winding core 12 and the case.
In this embodiment, a degaussing circuit 2 is added in the ordinary lithium ion battery, and one pole (positive pole or negative pole) of the lithium ion battery roll core is connected with the degaussing circuit 2. The degaussing circuit 2 consists of a helical coil. When current passes through the loop, the demagnetizing circuit 2 can generate an electromagnetic field, which is opposite to the direction of the electromagnetic field formed inside the lithium ion battery, thereby achieving the purpose of reducing the electromagnetic radiation of the lithium ion battery.
Example three:
referring to fig. 4 and 5, a lithium ion battery for reducing electromagnetic radiation includes a cover plate assembly 101, a winding core 12, a case 13 and an insulating sealing member 14, the winding core 12 is disposed in the case 13, the cover plate assembly 101 covers the case 13, the winding core 12 is formed by winding a positive electrode, a separator and a negative electrode and has a positive electrode lead and a negative electrode lead, and a degaussing circuit 2 is integrated in the cover plate assembly 101.
The cover plate assembly 101 comprises a metal layer 110 and an insulating layer 111, the metal layer 110 is fixed on the surface of the insulating layer 111, the demagnetizing circuit 2 is arranged in the insulating layer 111, the demagnetizing circuit 2 is in a spiral coil structure, one end of the spiral coil is connected with the metal layer 110 through a conductive wire, the other end of the spiral coil is connected with an anode lead of the winding core 12 through a conductive wire, and a cathode lead of the winding core 12 is connected with the shell 13. The outer periphery of the insulating layer 111 is connected to the insulating seal 14.
The degaussing circuit 2 may also be integrated in the housing 13 by means of an insulating layer.
The demagnetization circuit 2 is arranged in a cover plate or a shell of the lithium ion battery body 1 to form a corresponding cover plate component or a corresponding shell component, if the cover plate is composed of a metal layer 110 and an insulating layer 111 and is integrated, the demagnetization circuit 2 is embedded in the insulating layer 111, the output end of the demagnetization circuit 2 is connected with the metal layer of the cover plate, and the input end of the demagnetization circuit 2 is connected with one pole of a winding core in the lithium ion battery body. The lithium ion battery formed in this way is more compact in structure and lower in space utilization rate.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (7)

1. A lithium ion battery for reducing electromagnetic radiation, comprising: the demagnetizing circuit comprises a lithium ion battery body (1) and a demagnetizing circuit (2) with a winding coil, wherein the demagnetizing circuit (2) is connected with the lithium ion battery body (1), and when the lithium ion battery is charged and discharged, an electromagnetic field generated by the demagnetizing circuit (2) with the winding coil is opposite to the electromagnetic field generated by the lithium ion battery body (1).
2. The lithium ion battery for reducing electromagnetic radiation of claim 1, wherein: the demagnetization circuit (2) is externally arranged on the lithium ion battery body (1), and the anode or the cathode of the lithium ion battery body (1) is connected with the demagnetization circuit (2).
3. The lithium ion battery for reducing electromagnetic radiation of claim 1, wherein: the demagnetization circuit (2) is arranged in the lithium ion battery body (1).
4. The lithium ion battery for reducing electromagnetic radiation of claim 3, wherein: the lithium ion battery body includes apron (11), book core (12), casing (13) and insulating sealing member (14), and book core (12) sets up in casing (13), and apron (11) lid is established on casing (13), roll core (12) including anodal, diaphragm and negative pole coiling formation to have anodal lead wire and negative pole lead wire, anodal lead wire is connected with the positive pole of apron (11), and the negative pole lead wire is connected with casing (13), demagnetization circuit (2) are heliciform coil structure (203), and demagnetization circuit (2) set up between anodal lead wire and apron (11), perhaps set up between negative pole lead wire and casing (13), insulating sealing member (14) are established between apron (11) and casing (13).
5. The lithium ion battery for reducing electromagnetic radiation of claim 3, wherein: the lithium ion battery body includes apron subassembly (101), book core (12), casing (13) and insulating seal spare (14), and book core (12) set up in casing (13), and apron subassembly (101) lid is established on casing (13), it forms to roll up core (12) including anodal, diaphragm and negative pole coiling to have anodal lead wire and negative pole lead wire, demagnetization circuit (2) are integrated in apron subassembly (101).
6. The lithium ion battery for reducing electromagnetic radiation of claim 5, wherein: the cover plate assembly (101) comprises a metal layer (110) and an insulating layer (111), the metal layer (110) is fixed on the surface of the insulating layer (111), the demagnetizing circuit (2) is arranged in the insulating layer (111), one end of the demagnetizing circuit (2) is connected with the metal layer (110) through a conducting wire, and the other end of the demagnetizing circuit (2) is connected with the winding core (12) through a conducting wire.
7. The lithium ion battery for reducing electromagnetic radiation of claim 3, wherein: the lithium ion battery body includes apron (11), rolls up core (12), casing subassembly and insulating seal spare (14), rolls up core (12) and sets up in the casing subassembly, and apron (11) lid is established on the casing subassembly, roll up core (12) and include that anodal, diaphragm and negative pole are convoluteed and are formed to have anodal lead wire and negative pole lead wire, demagnetization circuit (2) integration is in the bottom of casing subassembly.
CN202022020954.2U 2020-09-16 2020-09-16 Lithium ion battery capable of reducing electromagnetic radiation Active CN213150851U (en)

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CN202022020954.2U CN213150851U (en) 2020-09-16 2020-09-16 Lithium ion battery capable of reducing electromagnetic radiation
PCT/CN2021/110554 WO2022057484A1 (en) 2020-09-16 2021-08-04 Lithium ion battery capable of reducing electromagnetic radiation

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CN202022020954.2U CN213150851U (en) 2020-09-16 2020-09-16 Lithium ion battery capable of reducing electromagnetic radiation

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CN213150851U true CN213150851U (en) 2021-05-07

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113381079A (en) * 2021-06-08 2021-09-10 歌尔科技有限公司 Winding type battery and TWS Bluetooth headset
CN113381078A (en) * 2021-06-08 2021-09-10 歌尔科技有限公司 Winding type battery and TWS Bluetooth headset
WO2022052737A1 (en) * 2020-09-11 2022-03-17 Oppo广东移动通信有限公司 Battery assembly and electronic device
WO2022057484A1 (en) * 2020-09-16 2022-03-24 常州微宙电子科技有限公司 Lithium ion battery capable of reducing electromagnetic radiation

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
US5960346A (en) * 1997-04-03 1999-09-28 Ericsson, Inc. Apparatus and method for reducing magnetic fields in radio telephones
EP2330667B1 (en) * 2009-11-23 2017-03-22 BlackBerry Limited Rechargeable battery with reduced magnetic leak
DE102014200304A1 (en) * 2014-01-10 2015-07-16 Robert Bosch Gmbh Battery pack with a plurality of electrochemical battery cells with a device for measuring a difference between two cell currents of two different battery cells
US10573870B2 (en) * 2017-08-11 2020-02-25 Cora Aero Llc Series batteries to reduce an interfering magnetic field
CN213150851U (en) * 2020-09-16 2021-05-07 常州微宙电子科技有限公司 Lithium ion battery capable of reducing electromagnetic radiation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022052737A1 (en) * 2020-09-11 2022-03-17 Oppo广东移动通信有限公司 Battery assembly and electronic device
WO2022057484A1 (en) * 2020-09-16 2022-03-24 常州微宙电子科技有限公司 Lithium ion battery capable of reducing electromagnetic radiation
CN113381079A (en) * 2021-06-08 2021-09-10 歌尔科技有限公司 Winding type battery and TWS Bluetooth headset
CN113381078A (en) * 2021-06-08 2021-09-10 歌尔科技有限公司 Winding type battery and TWS Bluetooth headset

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