CN111224055A - Lithium battery convenient for air transportation - Google Patents

Lithium battery convenient for air transportation Download PDF

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Publication number
CN111224055A
CN111224055A CN201911221331.7A CN201911221331A CN111224055A CN 111224055 A CN111224055 A CN 111224055A CN 201911221331 A CN201911221331 A CN 201911221331A CN 111224055 A CN111224055 A CN 111224055A
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China
Prior art keywords
lithium battery
shell
electromagnet
storage box
liquid storage
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Withdrawn
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CN201911221331.7A
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Chinese (zh)
Inventor
李志鹏
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Individual
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Individual
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Priority to CN201911221331.7A priority Critical patent/CN111224055A/en
Publication of CN111224055A publication Critical patent/CN111224055A/en
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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
    • 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
    • H01M50/572—Means for preventing undesired use or discharge
    • 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
    • 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
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Hybrid Cells (AREA)

Abstract

The invention discloses a lithium battery convenient for air transportation, which comprises a shell of a shell structure, a positive electrode and a negative electrode, wherein the inner wall of the shell is hermetically and slidably connected with a diaphragm and a conductive plate, the conductive plate is positioned above the diaphragm, a liquid storage box fixedly connected to the inner wall of the shell is arranged below the diaphragm, a circuit breaking structure is connected in the liquid storage box, the circuit breaking structure comprises a through hole, the middle part of the liquid storage box is connected with an electromagnet, and the top and the bottom of the electromagnet are respectively provided with a piston. Has the advantages that: by setting the lithium battery into two states, when the planes of the anode and the cathode are in a vertical state, the lithium battery is in a working state; when the planes of the anode and the cathode are in a horizontal state, the lithium battery is in a transportation state, so that the anode and the cathode are mutually insulated by oil in the transportation state of the lithium battery, the phenomenon of micro short circuit is avoided, and when the lithium battery is in a working state, the lithium battery and the external circuit are kept in a good power-on state.

Description

Lithium battery convenient for air transportation
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a lithium battery convenient for air transportation.
Background
The transportation main body of the lithium battery is air transportation. In recent years, some unsafe accidents related to the transportation of lithium battery cargos occur to different degrees in air transportation, wherein the reasons include external reasons and internal reasons, the main reasons are that on one hand, the strength of a high polymer film is low, the film is possibly damaged by the strong collision between airplane bumping and luggage, short circuit in the battery is caused, a large amount of heat is released in a short time, and due to the fact that organic electrolyte in the battery belongs to inflammable matters, combustion or explosion is caused; on the other hand, the leakage of the process causes the electrode lug of the battery cell to be overlong, and the electrode lug of the battery cell is contacted with the pole piece or the shell to cause internal short circuit; or the tabs press the winding core to cause the short circuit of the positive electrode and the negative electrode; resulting in accidents such as explosion and combustion.
In the prior art, the positive electrode and the negative electrode of the lithium battery are in direct contact with the electrolyte, so that the safety problem is easily caused by temperature or collision in the process of aerospace transportation, and the lithium battery cannot be easily changed in the using state and cannot be vertically or horizontally installed due to the fact that the using occasions of part of the lithium battery are relatively fixed, such as furniture or electrical equipment.
Disclosure of Invention
The invention aims to solve the problem that a lithium battery in the prior art is easy to have safety in the process of aerospace transportation, and provides the lithium battery convenient for aerospace transportation.
In order to achieve the purpose, the invention adopts the following technical scheme: a lithium battery convenient for air transportation comprises a shell of a shell structure, a positive electrode and a negative electrode, wherein the inner wall of the shell is hermetically and slidably connected with a diaphragm and a conductive plate, the conductive plate is positioned above the diaphragm, a liquid storage box fixedly connected to the inner wall of the shell is arranged below the diaphragm, and a circuit breaking structure for breaking the communication between the positive electrode and the negative electrode is connected in the liquid storage box;
the circuit breaking structure comprises through holes respectively formed in the top and the bottom of a liquid storage box, an electromagnet is connected to the middle of the liquid storage box, a piston is arranged at the top and the bottom of the electromagnet respectively, the two pistons are connected to the side wall of the liquid storage box in a sealing and sliding mode, and a magnetic layer is fixedly connected to one side, close to the electromagnet, of each of the two pistons;
the joint of the electromagnet and the liquid storage box is provided with a groove, two piezoelectric ceramic rings are connected in the groove and are respectively arranged on two sides of the electromagnet, and the electromagnet is opposite to the magnetic layer on the piston in magnetism.
In the lithium battery convenient for air transportation, the inner wall of the shell is provided with a liquid flow channel, one end of the liquid flow channel is provided with two inlet parts which are respectively communicated with a space between the two pistons and the electromagnet, and the other end outlet part of the liquid flow channel is separately arranged at the top of the shell and is communicated with a space above the current-conducting plate of the shell.
In the self-cleaning water dispenser, the connection part of the conductive plate and the inner wall of the shell is fixedly connected with an annular friction plate, the space above the conductive plate, the liquid flow channel and the space of one side of the two pistons, which is close to the electromagnet, are arranged as insulating spaces, the part of the inner wall of the shell, except the insulating spaces, is arranged as a conductive space, the conductive space is filled with electrolyte, and the insulating space is filled with oil.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the lithium battery is set to be in two states, and when the planes of the anode and the cathode are in a vertical state, the lithium battery is in a working state; when the planes of the anode and the cathode are in a horizontal state, the lithium battery is in a transportation state, so that the anode and the cathode are mutually insulated by oil in the transportation state of the lithium battery, the phenomenon of micro short circuit is avoided, and when the lithium battery is in a working state, the lithium battery and the external circuit are kept in a good power-on state.
2. In the invention, under the working state, the piezoelectric ceramic ring is compressed under the action of the gravity of the electromagnet to generate current, and the magnetic layer and the piston which are opposite to the electromagnet in magnetism are mutually far away by the characteristic that the electromagnet generates a magnetic field under the action of electrification, namely the piston pushes the electrolyte in the liquid storage box outwards, so that the oil in the insulating space enters the space between the two pistons through the liquid flow channel, the conductive plate is fully contacted with the positive electrode, and the effect of communication between the positive electrode and the negative electrode is realized;
3. in the invention, under the transportation state, the electromagnet is in a horizontal state at the moment, pressure cannot be generated on the piezoelectric ceramic rings on two sides, the electromagnet can be regarded as a common iron block, the magnetic layers on the two pistons are close to the electromagnet at the moment, so that oil in the space between the two pistons is extruded to the space above the current-conducting plate through the liquid flow channel, the current-conducting plate moves downwards in the vertical position, contact with the positive electrode cannot be generated, the two electrodes are disconnected, and at the moment, the positive electrode and the negative electrode cannot be communicated through electrolyte, so that the phenomenon of micro short circuit can be avoided under the aviation transportation;
4. set up annular friction disc in the outer lane of current conducting plate simultaneously, and fully offset with the inner wall of shell, great static friction has, then realize that the current conducting plate can't take place to slide under normal condition, such a benefit lies in, under the lithium cell is in operating condition, the lithium cell appears less vibration then can't make current conducting plate and positive electrode take place to break away from the phenomenon, the stability of maintenance circuit, when great vibration takes place, the electro-magnet will be in the unstable state of magnetism this moment, and the current conducting plate can slide under hydraulic pressure's effect, make before the lithium cell is inside to be in the stable state, the static friction power of friction disc and shell inner wall is greater than the magnetic force that the electro-magnet gave all the time, make the current conducting plate be in the state that breaks away from with the positive electrode intercommunication, avoid positive.
Drawings
FIG. 1 is a lithium battery of the present invention for facilitating air transportation;
fig. 2 is an enlarged schematic view of a portion a of a lithium battery convenient for air transportation according to the present invention.
In the figure: 1 shell, 2 positive electrodes, 3 negative electrodes, 4 diaphragms, 5 conducting plates, 6 liquid storage boxes, 7 electromagnets, 8 pistons, 9 through holes, 10 liquid flow channels, 11 piezoelectric ceramic rings and 12 friction plates.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-2, a lithium battery convenient for air transportation comprises a shell 1, a positive electrode 2 and a negative electrode 3, wherein the shell is of a shell structure, the inner wall of the shell 1 is hermetically and slidably connected with a diaphragm 4 and a conductive plate 5, the conductive plate 5 is positioned above the diaphragm 4, a liquid storage box 6 fixedly connected to the inner wall of the shell 1 is arranged below the diaphragm 4, and a circuit breaking structure for breaking the communication between the positive electrode 2 and the negative electrode 3 is connected in the liquid storage box 6;
the circuit breaking structure comprises through holes 9 respectively arranged at the top and the bottom of the liquid storage box 6, the middle part of the liquid storage box 6 is connected with an electromagnet 7, and the shell structure of the electromagnet 7 is set to have a density of 7.8g/cm3The lithium battery has higher density, so that the lithium battery has a downward sliding tendency when the lithium battery is in a vertical state, a groove structure is arranged at a fixed position of the electromagnet 7, the electromagnet 7 can slide in the groove structure in a small range, the top and the bottom of the electromagnet 7 are respectively provided with a piston 8, the two pistons 8 are hermetically and slidably connected to the side wall of the liquid storage box 6, one side of each of the two pistons 8, which is close to the electromagnet 7, is fixedly connected with a magnetic layer, the electromagnet 7 is opposite to the magnetic layer on the piston 8 in the same level, so that the magnetic layer and the electromagnet 7 are mutually repelled when the electromagnet 7 is electrified;
two piezoelectric ceramic rings 11 are connected in the groove, the two piezoelectric ceramic rings 11 are respectively arranged at the upper end and the lower end of the electromagnet 7, so that when the positive electrode and the negative electrode of the lithium battery are in a vertical state, the electromagnet 7 always has a pressure effect on one piezoelectric ceramic ring 11, namely, the electromagnet 7 is always electrified and magnetized in the state, a liquid flow channel 10 is arranged on the inner wall of the shell 1, one end of the liquid flow channel 10 is provided with two inlet parts, the two inlet parts are respectively communicated with a space clamped by the two pistons 8 and the electromagnet 7, the outlet part at the other end of the liquid flow channel 10 is separately arranged at the top of the shell 1 and is communicated with the space above the current-conducting plate 5 of the shell 1, when the pistons 8 slide, liquid in the liquid flow channel is supplemented to be pumped away under the hydraulic effect, and the position.
The junction fixedly connected with annular friction disc 12 of current conducting plate 5 and shell 1 inner wall, friction disc 12 uses rubber materials, has great coefficient of friction, current conducting plate 5 top space, fluid flow channel 10 and two pistons 8 are close to 7 side spaces of electro-magnet and are established to insulating space, the part except insulating space in the shell 1 inner wall is established to electrically conductive space, be full of electrolyte in the electrically conductive space, insulating space is full of oil, make shell 1 whole be in by the liquid seal's state, under this state, the flow of liquid can produce the linkage effect of the object that contacts with it.
In the invention, the lithium battery is set to have two different states, and when the planes of the anode and the cathode are in a vertical state, the lithium battery is in a working state; when the planes of the positive electrode and the negative electrode are in a horizontal state, the lithium battery is in a transportation state, the lithium battery is in different states of the piezoelectric ceramic rings 11 through the self gravity of the electromagnet 7 in the two states, when the lithium battery is in the transportation state, the electromagnet 7 is in the horizontal state, the piezoelectric ceramic rings on the two sides cannot bear pressure, the electromagnet 7 can be regarded as a common iron block, the magnetic layers on the two pistons 8 are attracted by the electromagnet 7 and are close to the electromagnet 7, so that oil in the space between the two pistons 8 is extruded to the space above the current conducting plate 5 through the liquid flow channel 10, the current conducting plate 5 moves downwards in the vertical position, and the positive electrode 2 and the current conducting plate 5 cannot be communicated due to the insulating property of the oil, namely the positive electrode cannot be connected with electrolyte, so that the phenomenon of micro short circuit generated in the transportation process is;
when the device is in a working state, the electromagnet 7 is in a vertical state, one of the piezoelectric ceramic rings 11 is compressed under the action of the gravity of the electromagnet 7 to generate current, the electromagnet 7 generates a magnetic field under the action of electricity, so that the magnetic layer magnetically opposite to the electromagnet and the piston 8 are far away from each other, namely, the two pistons 8 are relatively far away from each other and push the electrolyte in the liquid storage box 6 outwards, meanwhile, the oil in the insulating space is supplemented into the space between the two pistons through the liquid flow channel 10 under the action of negative pressure, the oil above the conductive plate 5 is supplemented to the liquid storage box 6, so that the conductive plate 5 slides upwards and is finally in full contact with the positive electrode 2, the effect of mutual communication between the positive electrode and the negative electrode is realized, in this state, the conductive plate 5 is always in sufficient contact with the positive electrode 2 due to the negative pressure and the magnetic force to ensure the operation state of the battery.
Meanwhile, the outer ring of the current-conducting plate 5 is provided with the annular friction plate 12, the friction plate 12 is made of rubber material with larger friction coefficient, so that larger static friction force is provided, the current-conducting plate 5 can not slide under the normal state, the advantage is that when the lithium battery is in the working state, the current-conducting plate 5 and the positive electrode 2 can not be separated due to smaller vibration of the lithium battery, the stability of the circuit is maintained, when larger vibration occurs, the electromagnet 7 is in the discontinuous connection state, which means in the unstable magnetic state, the current-conducting plate 5 can slide in a small amplitude under the non-magnetic state, and is kept in a balanced state under a position, so that before the internal part of the lithium battery is in the stable state, the static friction force between the friction plate 12 and the inner wall of the shell 1 is larger than the received hydraulic pressure, so that the current-conducting plate 5 is in the state of being separated, the phenomenon that the anode and the cathode generate short circuit through the diaphragm 4 under large vibration is avoided, and after the lithium battery is stable, the current conducting plate 5 returns to the state of contacting with the anode 2 under the action of stable magnetic force to recover the electrification, so that the lithium battery has better environment service capacity.
Although the case 1, the positive electrode 2, the negative electrode 3, the separator 4, the conductive plate 5, the reservoir 6, the electromagnet 7, the piston 8, the through hole 9, the flow channel 10, the piezoelectric ceramic ring 11, and the friction plate 12 are more used herein. Etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (3)

1. The lithium battery convenient for air transportation comprises a shell (1) with a shell structure, a positive electrode (2) and a negative electrode (3), and is characterized in that the inner wall of the shell (1) is connected with a diaphragm (4) and a conductive plate (5) in a sealing and sliding manner, the conductive plate (5) is positioned above the diaphragm (4), a liquid storage box (6) fixedly connected to the inner wall of the shell (1) is arranged below the diaphragm (4), and a circuit breaking structure for breaking the communication between the positive electrode (2) and the negative electrode (3) is connected in the liquid storage box (6);
the circuit breaking structure comprises through holes (9) respectively formed in the top and the bottom of a liquid storage box (6), an electromagnet (7) is connected to the middle of the liquid storage box (6), a piston (8) is respectively arranged at the top and the bottom of the electromagnet (7), the two pistons (8) are hermetically and slidably connected to the side wall of the liquid storage box (6), and one side, close to the electromagnet (7), of each piston (8) is fixedly connected with a magnetic layer;
the joint of electro-magnet (7) and liquid storage box (6) is equipped with the recess, two piezoceramics rings (11) are connected to the recess in, two piezoceramics ring (11) are established respectively in the both sides of electro-magnet (7), magnetic layer magnetism on electro-magnet (7) and piston (8) is relative.
2. The lithium battery convenient for air transportation according to claim 1, wherein the inner wall of the housing (1) is provided with a liquid flow channel (10), one end of the liquid flow channel (10) is provided with two inlet parts which are respectively communicated with a space between the two pistons (8) and the electromagnet (7), and the other end of the liquid flow channel (10) is provided with an outlet part which is arranged at the top of the housing (1) and is communicated with a space above the conductive plate (5) of the housing (1).
3. The lithium battery convenient for air transportation according to claim 1, wherein the joint of the conductive plate (5) and the inner wall of the shell (1) is fixedly connected with an annular friction plate (12), the space above the conductive plate (5), the liquid flow channel (10) and the space of one side of the two pistons (8) close to the electromagnet (7) are set as insulating spaces, the part of the inner wall of the shell (1) except the insulating spaces is set as conductive spaces, the conductive spaces are filled with electrolyte, and the insulating spaces are filled with oil.
CN201911221331.7A 2019-12-03 2019-12-03 Lithium battery convenient for air transportation Withdrawn CN111224055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911221331.7A CN111224055A (en) 2019-12-03 2019-12-03 Lithium battery convenient for air transportation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911221331.7A CN111224055A (en) 2019-12-03 2019-12-03 Lithium battery convenient for air transportation

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Publication Number Publication Date
CN111224055A true CN111224055A (en) 2020-06-02

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CN201911221331.7A Withdrawn CN111224055A (en) 2019-12-03 2019-12-03 Lithium battery convenient for air transportation

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112103524A (en) * 2020-10-16 2020-12-18 湖州海明机械科技有限公司 Easy-to-take dry battery
CN112234321A (en) * 2020-10-21 2021-01-15 张晓磊 Leak-proof safety battery capable of being placed for long time
CN112713064A (en) * 2020-12-21 2021-04-27 湖南久森新能源有限公司 Lithium ion battery with protection mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112103524A (en) * 2020-10-16 2020-12-18 湖州海明机械科技有限公司 Easy-to-take dry battery
CN112234321A (en) * 2020-10-21 2021-01-15 张晓磊 Leak-proof safety battery capable of being placed for long time
CN112234321B (en) * 2020-10-21 2023-04-07 广东电将军能源有限公司 Leak-proof safety battery capable of being placed for long time
CN112713064A (en) * 2020-12-21 2021-04-27 湖南久森新能源有限公司 Lithium ion battery with protection mechanism
CN112713064B (en) * 2020-12-21 2022-10-28 湖南久森新能源有限公司 Lithium ion battery with protection mechanism

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