CN116979189A - Metal-air battery, battery pack and thermal runaway control method - Google Patents
Metal-air battery, battery pack and thermal runaway control method Download PDFInfo
- Publication number
- CN116979189A CN116979189A CN202310648580.4A CN202310648580A CN116979189A CN 116979189 A CN116979189 A CN 116979189A CN 202310648580 A CN202310648580 A CN 202310648580A CN 116979189 A CN116979189 A CN 116979189A
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- China
- Prior art keywords
- metal
- air
- electrolyte
- negative pole
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 46
- 239000003792 electrolyte Substances 0.000 claims abstract description 37
- 239000000523 sample Substances 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000446 fuel Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/02—Details
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Hybrid Cells (AREA)
Abstract
A metal air battery, a battery pack and a thermal runaway control method belong to the technical field of batteries, and the specific scheme is as follows: the utility model provides a metal-air battery, includes air electrode plate, negative pole metal sheet, electrolyte, drive arrangement, temperature sensing probe and control system, and air electrode plate and negative pole metal sheet all contact with the electrolyte, thereby drive arrangement is connected and drive negative pole metal sheet removes the area of contact of control negative pole metal sheet and electrolyte with negative pole metal sheet, and temperature sensing probe sets up in the electrolyte, and temperature sensing probe and drive arrangement all are connected with control system electricity. The metal-air battery provided by the invention can stably control the operation of the metal-air battery under the condition that only a small amount of electrolyte is used.
Description
Technical Field
The invention belongs to the technical field of batteries, and particularly relates to a metal-air battery, a battery pack and a thermal runaway control method.
Background
The metal-air battery is a novel fuel battery formed by replacing other fuels with metal, and is a green energy source. It has the advantages of no toxicity, no pollution, high energy density and the like, and generally adopts more active metals such as: aluminum, magnesium, zinc, etc. as the negative electrode and the air electrode as the positive electrode. The metal-air battery mainly comprises a galvanic pile, an electrolyte tank, a starting pump and a circulating pipeline, wherein the electrolyte tank occupies extremely large volume and mass, and the battery usually has the problem of thermal runaway when operated under high power for a long time, and a large amount of heat accumulation can lead to the melting deformation of plastic parts between battery connectors, so that the whole battery system is collapsed. The general idea is to control the temperature by increasing the amount of electrolyte, but this method is limited by the space of the whole cell stack and cannot effectively and thoroughly solve the problem of thermal runaway. Therefore, a new solution to the thermal runaway needs to be proposed to ensure the stable operation of the battery for an ultra-long period of time.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a metal-air battery, a battery pack and a thermal runaway control method, which can effectively control the temperature of a metal-air battery system and prevent thermal runaway, thereby realizing the ultra-long stable operation of the metal-air battery.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a metal-air battery, includes air electrode plate, negative pole metal sheet, electrolyte, drive arrangement, temperature sensing probe and control system, air electrode plate and negative pole metal sheet all contact with the electrolyte, thereby drive arrangement is connected and drive negative pole metal sheet removes the area of contact of control negative pole metal sheet and electrolyte with the negative pole metal sheet, temperature sensing probe sets up in the electrolyte, temperature sensing probe and drive arrangement all are connected with the control system electricity.
Further, the metal-air battery also comprises an outer shell, two air windows are arranged on two sides of the outer shell, two air electrode plates are respectively fixed on two sides of the inner part of the outer shell and cover the air windows on the side where the air electrode plates are located, a negative electrode metal plate is arranged between the two air electrode plates, and electrolyte is injected into the outer shell.
Further, the top of the outer shell is provided with a top cover, the negative electrode metal plate is detachably fixed on the lower surface of the top cover, and the driving device drives the top cover to move up and down relative to the outer shell.
Further, the drive arrangement includes oil pump and connecting rod, the oil pump sets up in the bottom of shell body, the one end and the oil pump of connecting rod are connected, and the other end is connected with the top cap, oil pump drive connecting rod motion.
The upper surface of top cap detachable is fixed and is provided with the handle.
Further, the thickness of the air electrode plate is 1-3mm, and the negative electrode metal plate is made of aluminum, magnesium, zinc or iron.
A battery pack comprising the metal-air battery.
Further, the battery pack further comprises a base, and the plurality of metal-air batteries are all arranged on the base.
Further, the battery pack further comprises a fan, the fan is arranged on the side face of the base, and the fan is electrically connected with the control system.
When the temperature of the electrolyte reaches a set value, which is monitored by the temperature sensing probe, information is transmitted to the control system, and the control system controls the driving device to drive the cathode metal plate to move, so that the contact area between the cathode metal plate and the electrolyte is controlled.
Compared with the prior art, the invention has the beneficial effects that:
1) The metal-air battery provided by the invention can stably control the operation of the metal-air battery under the condition that only a small amount of electrolyte is used. The single battery metal plate can continuously and stably work for more than 30 hours until the battery metal plate is consumed, and electrolyte is not needed to be replenished in the middle.
2) The metal-air battery has a simple structure, and can realize the preparation of a high-power electric pile in a mode of adding an electric pile base; meanwhile, the single battery top cover is not tightly installed with the single battery shell, so that the battery metal plate can be conveniently and quickly replaced.
Drawings
FIG. 1 is a schematic view of a metal-air battery of the present invention;
FIG. 2 is a schematic structural view of a metal-air battery cell of the present invention;
FIG. 3 is a cross-sectional view of a metal-air cell of the present invention in the position of an oil pump;
FIG. 4 is a cross-sectional view of a metal-air cell of the present invention in the position of a top cap handle;
FIG. 5 is a schematic diagram of the operating principle of the control system of the present invention;
in the figure: 0. 1, an air electrode plate, 2, a negative electrode metal plate, 3, a driving device, 4, a temperature sensing probe, 5, an outer shell, 6, a base, 7, a fan, 31, an oil pump, 32, a connecting rod, 51, an air window, 52, a top cover, 53 and a handle.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and examples, and it is apparent that the described examples are only some, but not all, of the examples of the invention, and all other examples obtained by those skilled in the art without making any inventive effort are within the scope of the present invention. For convenience of description, in the following embodiments, the positions where the air electrode plates 1 are disposed are defined as "front" and "rear", and do not particularly limit the scope of the present invention.
Detailed description of the preferred embodiments
As shown in fig. 2-4, a metal-air battery comprises an air electrode plate 1, a negative electrode metal plate 2, electrolyte, a driving device 3, a temperature sensing probe 4 and a control system, wherein the air electrode plate 1 and the negative electrode metal plate 2 are in contact with the electrolyte, the driving device 3 is connected with the negative electrode metal plate 2 and drives the negative electrode metal plate 2 to move so as to control the contact area between the negative electrode metal plate 2 and the electrolyte, the temperature sensing probe 4 is arranged in the electrolyte and used for acquiring the temperature of the electrolyte in real time, and the temperature sensing probe 4 and the driving device 3 are electrically connected with the control system. The control system can receive the electrolyte temperature information transmitted by the temperature sensing probe 4, so as to control the operation of the driving device 3. The control system is an existing control system.
Further, the metal-air battery further comprises an outer shell 5, the top of the outer shell 5 is of an opening structure, two sides of the outer shell are provided with air windows 51, the two air electrode plates 1 are respectively fixed on the front side and the rear side of the inner part of the outer shell 5 and cover the air windows 51 on one side of the outer shell, the air windows 51 are blocked from being communicated with the inner part of the outer shell 5, the negative electrode metal plate 2 is arranged between the two air electrode plates 1, electrolyte is injected into the inner part of the outer shell 5, and the temperature sensing probe 4 is fixed at the center position of the inner bottom surface of the outer shell.
Further, a top cover 52 is arranged on the top of the outer casing 5, the negative electrode metal plate 2 is detachably fixed on the lower surface of the top cover 52, and the driving device 3 drives the top cover 52 to move up and down relative to the outer casing 5. The outer shell 5 and the top cover 52 are not rigidly connected, so that free plugging can be realized.
Further, the driving device 3 includes an oil pump 31 and a connecting rod 32, the oil pump 31 is disposed at the bottom of the outer casing 5, one end of the connecting rod 32 is connected with the oil pump 31, and the other end is detachably and fixedly connected with the top cover 52. The oil pump 31 and the connecting rod 32 are integrated. Preferably, the oil pump 31 has four gears which can be regulated and controlled, and the oil pump 31 can work to lift the connecting rod 32 and the cathode metal plate 2 through input signals, and the total four gears are 2 cm, 4 cm, 6 cm and 8cm respectively, namely the lifting heights of the connecting rod 32 are 2 cm, 4 cm, 6 cm and 8cm respectively. This structure facilitates replacement of the anode metal plate 2.
Preferably, two driving devices 3 are respectively arranged at the left side and the right side of the outer shell 5. The driving means 3 are arranged in separate chambers, separated from the electrolyte.
Further, a handle 53 is detachably fixed on the upper surface of the top cover 52 by a screw.
Further, the thickness of the air electrode plate 1 is 1-3mm, and the cathode metal plate 2 is made of aluminum, magnesium, zinc or iron.
Detailed description of the preferred embodiments
A battery pack comprising a plurality of metal-air cells 0 according to one embodiment.
Further, the battery pack further comprises a base 6, the plurality of metal-air batteries 0 are all arranged on the base 6, and the plurality of metal-air batteries 0 can be freely inserted and pulled out to be placed on the base 6. Preferably, the control system is arranged inside the base 6.
Further, the battery pack further comprises a fan 7, the fan 7 is arranged on the side face of the base 6, and the fan 7 is electrically connected with the control system. The fan 7 has three gears, the wind speed can be controlled, the control system controls the on-off and the gears of the fan 7, and the number of the fans 7 can be multiple.
As shown in fig. 1, the number of metal-air cells 0 and fans 7 in one battery pack may be increased, and preferably, each base 6 may accommodate 6 metal-air cells 0 and 2 fans 7 at the same time. The base 6 can be added in series, so that the manufacture of the high-power metal-air battery pack can be realized.
Detailed description of the preferred embodiments
In one embodiment, when the temperature of the electrolyte reaches a set value, which is detected by the temperature sensing probe 4, information is transmitted to the control system, and the control system controls the driving device 3 to drive the anode metal plate 2 to move, so as to control the contact area between the anode metal plate 2 and the electrolyte.
The metal-air battery manufactured by the thermal runaway control method can realize stable operation for a very long time.
When the temperature sensing probe 4 detects that the temperature of the electrolyte is too high, information is transmitted to the control system, the control system starts to control the oil pump 31 and the fan 7 to start working, the oil pump 31 controls the contact area between the cathode metal plate 2 and the electrolyte to control the heat generation amount of the battery system, meanwhile, the fan 7 is used for external air cooling, the working condition of the fan 7 is also controlled by the control system, and the control system has three gears, so that the proper wind speed gear can be matched according to the temperature. In addition, the fan 7 can also provide sufficient oxygen for the air electrode, so that the reaction can be conveniently carried out. Finally, the control system is used for controlling the heat generation amount and the heat dissipation amount in a combined way to keep the temperature of the battery system within a proper range of 50-70 ℃, so that the battery system can realize stable operation for an ultra-long time. The single metal-air battery 0 can continue to operate stably for more than 30 hours until the negative electrode metal plate 2 is consumed, and electrolyte is not needed to be replenished in the middle.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. A metal-air battery characterized by: including air electrode board (1), negative pole metal sheet (2), electrolyte, drive arrangement (3), temperature sensing probe (4) and control system, air electrode board (1) and negative pole metal sheet (2) all contact with the electrolyte, thereby drive arrangement (3) are connected and drive negative pole metal sheet (2) remove the area of contact of control negative pole metal sheet (2) and electrolyte with negative pole metal sheet (2), temperature sensing probe (4) set up in the electrolyte, temperature sensing probe (4) and drive arrangement (3) all are connected with the control system electricity.
2. A metal-air cell according to claim 1, wherein: the metal-air battery further comprises an outer shell (5), air windows (51) are formed in two sides of the outer shell (5), two air electrode plates (1) are respectively fixed on two sides of the inner portion of the outer shell (5) and cover the air windows (51) on the side, a negative electrode metal plate (2) is arranged between the two air electrode plates (1), and electrolyte is injected into the outer shell (5).
3. A metal-air cell according to claim 2, wherein: the top of shell (5) is provided with top cap (52), negative pole metal sheet (2) can dismantle the lower surface of fixing at top cap (52), drive arrangement (3) drive top cap (52) reciprocate relative shell (5).
4. A metal-air cell according to claim 3, wherein: the driving device (3) comprises an oil pump (31) and a connecting rod (32), wherein the oil pump (31) is arranged at the bottom of the outer shell (5), one end of the connecting rod (32) is connected with the oil pump (31), and the other end of the connecting rod is connected with the top cover (52).
5. A metal-air cell according to claim 3, wherein: the upper surface of the top cover (52) is detachably and fixedly provided with a handle (53).
6. A metal-air cell according to claim 1, wherein: the thickness of the air electrode plate (1) is 1-3mm, and the negative electrode metal plate (2) is made of aluminum, magnesium, zinc or iron.
7. A battery pack, characterized in that: comprising a number of metal-air cells (0) according to any of claims 1-6.
8. The battery pack according to claim 7, wherein: the battery pack also comprises a base (6), and the plurality of metal-air batteries (0) are all arranged on the base (6).
9. The battery pack of claim 8, wherein: the battery pack further comprises a fan (7), the fan (7) is arranged on the side face of the base (6), and the fan (7) is electrically connected with the control system.
10. A method of thermal runaway control of a metal-air battery according to any one of claims 1-6, characterized by: when the temperature sensing probe (4) monitors that the temperature of the electrolyte reaches a set value, information is transmitted to a control system, and the control system controls the driving device (3) to drive the negative electrode metal plate (2) to move, so that the contact area between the negative electrode metal plate (2) and the electrolyte is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310648580.4A CN116979189A (en) | 2023-06-02 | 2023-06-02 | Metal-air battery, battery pack and thermal runaway control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310648580.4A CN116979189A (en) | 2023-06-02 | 2023-06-02 | Metal-air battery, battery pack and thermal runaway control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116979189A true CN116979189A (en) | 2023-10-31 |
Family
ID=88480541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310648580.4A Pending CN116979189A (en) | 2023-06-02 | 2023-06-02 | Metal-air battery, battery pack and thermal runaway control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116979189A (en) |
-
2023
- 2023-06-02 CN CN202310648580.4A patent/CN116979189A/en active Pending
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