CN109921152B - Metal/air battery system capable of automatically configuring electrolyte - Google Patents
Metal/air battery system capable of automatically configuring electrolyte Download PDFInfo
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- CN109921152B CN109921152B CN201711332282.5A CN201711332282A CN109921152B CN 109921152 B CN109921152 B CN 109921152B CN 201711332282 A CN201711332282 A CN 201711332282A CN 109921152 B CN109921152 B CN 109921152B
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Abstract
The invention discloses a metal/air battery system capable of automatically configuring electrolyte, which comprises a liquid storage unit for a metal/air battery, wherein the liquid storage unit consists of two independent sealed cavities and is respectively used for storing solid electrolyte and storing water or unsaturated electrolyte solution; the communication between the two cavities can be opened and closed, and the communication area can be increased and contracted, so that the adding flow of the solid electrolyte can be adjusted. The system also comprises a control unit, a temperature sensor and a conductivity meter; the opening and closing of the heat exchanger and the increase or contraction of the communication area are controlled by collecting the temperature signal and the conductivity signal. Compared with the prior art, the metal/air battery has the following advantages: the use flow of the metal/air battery system is simplified, and a separate liquid preparation device is omitted; manual operation processes are reduced, and the operation performance of the battery system is improved.
Description
Technical Field
The invention relates to a metal/air battery system capable of automatically configuring electrolyte, and belongs to the technical field of metal/air batteries.
Background
The metal/air cell is an electrochemical reaction device which adopts metal (such as magnesium, aluminum, zinc and the like) as anode fuel, oxygen in the air as an oxidant and alkali liquor as electrolyte solution. The reserves of magnesium, aluminum, zinc and other metals in China are rich and the price is low, so the metal/air battery has wide application prospect in various fields of mobile power supplies such as communication power supplies, field emergency power supplies, lighting power supplies, reserve power supplies and the like in China.
When the metal/air battery system is used as a standby power supply, the metal/air battery system is mostly required to be stored for a long time and is rapidly activated and used during starting, a large amount of electrolyte is required for activating the battery to discharge in the high-power metal/air battery system, most of the electrolyte is high-concentration alkaline solution, the long-term storage of the alkaline electrolyte has higher requirements on corrosion resistance and sealing performance of equipment, and potential safety hazards of electrolyte leakage exist, so that the metal/air battery system is mostly used by adopting a scheme of temporarily configuring the electrolyte during use, and the configuration of the electrolyte generates a large amount of heat and pungent odor when dissolved by solid electrolyte, so that the metal/air battery system has great harm to the personal health of operators and also has certain.
Patent 201611121031.8 proposes a metal-air battery system and method for automatically dispensing electrolyte, but does not mention the method of filling solid electrolyte.
Disclosure of Invention
Aiming at the problems, in order to realize the quick configuration of electrolyte and improve the practicability and safety of a battery system, the invention provides a liquid storage unit for a metal/air battery, wherein the liquid storage unit consists of two independent sealed cavities which are respectively a first cavity and a second cavity; the first cavity is used for storing solid electrolyte, and the second cavity is used for storing water or unsaturated electrolyte solution; the communication between the first cavity and the second cavity can be opened and closed, and the communication area can be increased and contracted, so that the flow of the solid electrolyte in the first cavity into the second cavity is adjusted.
Preferably, the liquid storage unit is divided into the first cavity and the second cavity by an internal partition; the separator is movably connected with the liquid storage unit; the communication area of the first cavity and the second cavity is adjusted through the position change of the separating piece.
Preferably, the partition is a partition, and the movable connection is that one end of the partition is connected with the inner wall of the liquid storage unit in a rotating, sliding or rolling manner, and the other end of the partition is connected with the wall surface of the liquid storage unit in a rotating, sliding or rolling manner to form a folding, rotating or extending variation form, so that the communication area between the first cavity and the second cavity is increased or reduced.
Preferably, the solid electrolyte is stored in a sealed package disposed in the first cavity; the end part of the clapboard is provided with a sharp part; when the position of the separator changes, the sharp member may rip the sealed package, releasing the solid electrolyte.
Preferably, the material of the liquid storage unit is alkali-resistant plastic, metal, alloy or metal or alloy with non-metal lining.
Preferably, the alkali-resistant plastic comprises at least one of ABS plastic, polyvinyl chloride PVC, polyethylene PE, polystyrene PS, nylon PA, polyformaldehyde POM, polysulfone PSF and polyphenylene sulfide PPS;
preferably, the metal comprises at least one of scandium, titanium, vanadium, chromium, cobalt, nickel, yttrium, zirconium, niobium, hafnium, tantalum, platinum, gold; the alloy comprises at least one of austenitic stainless steel, austenitic-ferritic stainless steel, martensitic stainless steel, monel alloy, hastelloy alloy, titanium alloy, zirconium alloy, tantalum alloy and niobium alloy;
preferably, the non-metal lining is at least one of lining rubber, lining porcelain plate, lining glass fiber reinforced plastic, paint anti-corrosion lining or glass flake coating lining.
The invention also provides a liquid distribution system for the metal/air battery, which comprises the liquid storage unit with the liquid pump and the heat exchanger, wherein the second cavity, the liquid pump and the heat exchanger are communicated in series to form a first circulation loop.
In another aspect, the present invention provides a liquid preparation control system for a metal/air battery, where the control system includes the above liquid preparation system, and further includes: the temperature sensor is used for detecting the temperature of the electrolyte, and the conductivity meter is used for detecting the conductivity of the electrolyte in the second cavity; the control unit is respectively connected with the sensor, the conductivity meter, the liquid pump, the heat exchanger and the liquid storage unit; the control unit is used for controlling the opening and closing of the heat exchanger and controlling the increase or contraction of the communication area of the first cavity and the second cavity by acquiring the temperature signal of the sensor and comparing the temperature signal with a target temperature value; the control unit is used for controlling the opening and closing of the heat exchanger and the liquid pump and controlling the increase or contraction of the communication area of the first cavity and the second cavity by acquiring a conductivity signal of the liquid in the second cavity and comparing the conductivity signal with a target conductivity value.
The invention also provides a method for preparing the electrolyte by the liquid preparation control system, which comprises the following steps: setting a first temperature threshold and a second temperature threshold from low to high respectively for the target temperature value; setting a conductivity threshold value for the target conductivity value; when the temperature signal value is smaller than a first threshold value, the control unit controls the communication area of the first cavity and the second cavity to be increased; when the temperature signal value is larger than a first threshold value, the control unit controls the heat exchanger to start; when the temperature signal value is larger than a second threshold value, the control unit controls the communicated area of the first cavity and the second cavity to be contracted; when the conductivity signal value is larger than the conductivity threshold value and the temperature signal value is smaller than the first threshold value, the control unit controls to close the liquid pump and the heat exchanger, and controls to cut off the communication between the first cavity and the second cavity.
The invention also provides a metal/air battery system, which comprises a metal/air battery pack and the liquid preparation system or the liquid preparation control system; the metal/air battery pack, the heat exchanger, the liquid pump and the second cavity are communicated in series to form a second circulation loop.
Compared with the prior art, the metal/air battery has the following advantages:
(1) the use flow of the metal/air battery system is simplified, and a separate liquid preparation device is omitted;
(2) manual operation processes are reduced, and the operation performance of the battery system is improved.
Drawings
FIG. 1 is a schematic diagram of a metal/air battery system
FIG. 2 is a schematic diagram of the internal structure of the liquid storage unit
FIG. 3 is a control flow chart
In the figure, 1-a solid electrolyte storage cavity, 2-a liquid storage cavity, 3-a metal/air battery pack, 4-a heat exchanger, 5-a liquid pump, 6-a control unit, 7-a partition plate, 8-a rotating shaft, 9-a sealed package body and 10-a sharp component.
Detailed Description
Examples
The metal/air battery pack 3 is formed by connecting 30 single batteries in series, wherein each single battery comprises two anodes and four cathodes, the anodes are made of aluminum alloy, and the 30 single batteries in the battery pack are respectively provided with a liquid injection port and a liquid discharge port which are mutually connected in series and overlapped to form a liquid injection main flow channel and a liquid discharge main flow channel of the battery pack.
A hinge 6 and a partition plate 7 are arranged in the liquid storage unit, the partition plate 7 divides the liquid storage unit into a solid electrolyte storage cavity 1 and a liquid storage cavity 2, and the liquid storage cavity 2 is sealed at the bottom and used for storing electrolyte after injection and configuration; the upper portion is protruded to a certain height as a solid electrolyte storage chamber 1 for storing a solid electrolyte. The rotating shaft 8 can drive the partition plate 7 to rotate, so that the solid electrolyte storage cavity 1 and the liquid storage cavity 2 are isolated and communicated, and the preparation of electrolyte solution required by the metal/air battery reaction is realized. Solid electrolyte stores in solid electrolyte storage chamber 1, rotates through motor control pivot 8, changes 7 pivoted speeds of baffle and position, and then increases and contracts the area of the intercommunication in solid electrolyte storage chamber 1 and stock solution chamber 2, adjusts the flow that solid electrolyte got into stock solution chamber 2.
The liquid storage cavity 2, the liquid pump 5 and the heat exchanger 4 (including a fan) are communicated in series to form a first circulation loop. The liquid inlet of the liquid pump 5 is communicated with the liquid storage cavity 2, the liquid outlet of the liquid pump 5 is communicated with the liquid inlet of the heat exchanger 4, the liquid outlet of the heat exchanger 4 is communicated with the liquid storage cavity 2, and the metal/air battery adopts a first circulation loop when liquid is prepared. When joining in marriage liquid, solid electrolyte stores the intercommunication area in chamber 1 and stock solution chamber 2 and begins the increase by 0 with the rotation of 8 messenger's baffles 7 in the solid electrolyte storage chamber 1, and solid electrolyte slides down along the seam under the action of gravity, gets into stock solution chamber 2 in, mixes with the electrolyte that 5 liquid pumps injected and carries out electrolyte and prepare.
The solid electrolyte can also be stored in a sealed package body 9, and then the sealed package body is placed in the solid electrolyte storage cavity 1; the end part of the clapboard 7 is provided with a sharp part 10; when the position of the partition 7 is changed, the sharp member 10 may cut the sealed package to release the solid electrolyte into the solid electrolyte storage chamber 1.
The metal/air battery pack 3, the heat exchanger 4, the liquid pump 5 and the liquid storage cavity 2 are communicated in series to form a second circulation loop. The inlet and stock solution chamber 2 intercommunication of liquid pump 5, the liquid outlet of liquid pump 5 and the inlet intercommunication of heat exchanger 4, the leakage fluid dram of heat exchanger 4 and the electrolyte of metal/air battery group 3 annotate liquid mouth intercommunication, the electrolyte liquid outlet and the stock solution chamber 2 intercommunication of metal/air battery group 3. The metal/air cell employs a second circulation loop during operation.
Control flow is as shown in fig. 3, and the liquid preparation begins, and liquid pump 5 starts, and the notice control motor drives pivot 8 and rotates, makes baffle 7 rotate, and solid electrolyte storage chamber 1 and the intercommunication in stock solution chamber 2, and solid electrolyte gets into stock solution chamber 2 and dissolves under the circulating electrolyte effect, and temperature sensor can detect stock solution 2 inside central point and put the electrolyte temperature this moment, if the temperature is less than 50 degrees, then the baffle continues the expansion, if the temperature is higher than 50 ℃, then the heat exchanger fan starts, dispels the heat. The temperature sensor continues to work, when the temperature of the temperature sensor is lower than 70 ℃, the partition plate continues to expand, the heat exchanger works, when the temperature of the temperature sensor rises to more than 70 ℃, the partition plate contracts, the temperature is repeatedly detected, the partition plate is driven to rotate, and the communication area between the solid electrolyte storage cavity 1 and the liquid storage cavity 2 is changed to be increased or reduced. When the temperature of the temperature sensor is lower than 50 ℃ and the conductivity of the electrolyte at the center of the liquid storage cavity is more than 350ms/sm, the mark indicates that the electrolyte is completely configured, the liquid preparation is finished, the pump and the fan stop working, the partition plate returns, and the communication area of the solid electrolyte storage cavity 1 and the liquid storage cavity 2 is 0.
Claims (6)
1. A liquid distribution control system for a metal/air battery is characterized by comprising a liquid distribution system for the metal/air battery, wherein the liquid distribution system comprises a liquid pump, a heat exchanger and a liquid storage unit for the metal/air battery, and the liquid storage unit consists of two independent sealed cavities, namely a first cavity and a second cavity; the first cavity is used for storing solid electrolyte, and the second cavity is used for storing water or unsaturated electrolyte solution; the communication between the first cavity and the second cavity can be opened and closed, and the communication area can be increased and contracted, so that the flow of the solid electrolyte in the first cavity into the second cavity is adjusted;
a partition plate is arranged in the liquid storage unit, the partition plate divides the liquid storage unit into a first cavity and a second cavity, the second cavity is sealed at the bottom, and the upper part of the second cavity is protruded to a certain height to serve as the first cavity;
one end of the partition board is connected with the inner wall of the liquid storage unit through a rotating shaft, the rotating shaft is controlled to rotate through a motor, the rotating speed and the rotating position of the partition board are changed, the communication area of the first cavity and the second cavity is enlarged and contracted, and the flow of the solid electrolyte entering the second cavity is adjusted;
the second cavity, the liquid pump and the heat exchanger are communicated in series to form a first circulation loop;
the control system further comprises: the temperature sensor is used for detecting the temperature of the electrolyte, and the conductivity meter is used for detecting the conductivity of the electrolyte in the second cavity; the control unit is respectively connected with the sensor, the conductivity meter, the liquid pump, the heat exchanger and the liquid storage unit; the control unit is used for controlling the opening and closing of the heat exchanger and controlling the increase or contraction of the communication area of the first cavity and the second cavity by acquiring the temperature signal of the sensor and comparing the temperature signal with a target temperature value; the control unit is used for controlling the opening and closing of the heat exchanger and the liquid pump and controlling the increase or contraction of the communication area of the first cavity and the second cavity by acquiring a conductivity signal of the liquid in the second cavity and comparing the conductivity signal with a target conductivity value.
2. The liquid distribution control system for a metal/air battery according to claim 1, wherein the solid electrolyte is stored in a sealed package body, the sealed package body being disposed in the first cavity; the end part of the clapboard is provided with a sharp part; when the position of the separator changes, the sharp member may rip the sealed package, releasing the solid electrolyte.
3. The system of claim 1, wherein the liquid storage unit is made of alkali-resistant plastic, metal, alloy, or metal or alloy with non-metal lining.
4. The liquid preparation control system for metal/air battery as claimed in claim 3, wherein the alkali-resistant plastic comprises at least one of ABS plastic, polyvinyl chloride PVC, polyethylene PE, polystyrene PS, nylon PA, polyoxymethylene POM, polysulfone PSF, polyphenylene sulfide PPS; the metal comprises at least one of scandium, titanium, vanadium, chromium, cobalt, nickel, yttrium, zirconium, niobium, hafnium, tantalum, platinum and gold; the alloy comprises at least one of austenitic stainless steel, austenitic-ferritic stainless steel, martensitic stainless steel, monel alloy, hastelloy alloy, titanium alloy, zirconium alloy, tantalum alloy and niobium alloy; the non-metal lining is at least one of lining rubber, lining porcelain plate, lining glass fiber reinforced plastic, paint anti-corrosion lining or glass flake coating lining.
5. A method of dispensing an electrolyte using the dispensing control system of claim 1, comprising the steps of:
setting a first temperature threshold and a second temperature threshold from low to high respectively for the target temperature value;
setting a conductivity threshold value for the target conductivity value;
when the temperature signal value is smaller than a first threshold value, the control unit controls the communication area of the first cavity and the second cavity to be increased;
when the temperature signal value is larger than a first threshold value, the control unit controls the heat exchanger to start;
when the temperature signal value is larger than a second threshold value, the control unit controls the communicated area of the first cavity and the second cavity to be contracted;
when the conductivity signal value is larger than the conductivity threshold value and the temperature signal value is smaller than the first threshold value, the control unit controls to close the liquid pump and the heat exchanger, and controls to cut off the communication between the first cavity and the second cavity.
6. A metal/air battery system comprising a metal/air battery pack and the liquid dispensing control system of claim 1; the metal/air battery pack, the heat exchanger, the liquid pump and the second cavity are communicated in series to form a second circulation loop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711332282.5A CN109921152B (en) | 2017-12-13 | 2017-12-13 | Metal/air battery system capable of automatically configuring electrolyte |
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| CN201711332282.5A CN109921152B (en) | 2017-12-13 | 2017-12-13 | Metal/air battery system capable of automatically configuring electrolyte |
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| CN109921152B true CN109921152B (en) | 2021-05-14 |
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| CN112670538B (en) * | 2020-12-24 | 2022-12-09 | 郑州佛光发电设备股份有限公司 | Multifunctional portable metal air power supply |
| CN113067017B (en) * | 2021-03-18 | 2022-02-08 | 清华大学 | Electrolyte circulation system applied to metal-air battery |
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| WO2015009836A1 (en) * | 2013-07-17 | 2015-01-22 | Elwha Llc | Cathode temperature regulation for metal-air batteries |
| CN105161796A (en) * | 2015-09-12 | 2015-12-16 | 哈尔滨工业大学 | Aluminum air battery circulating and filtering system and method |
| CN106165192A (en) * | 2014-02-03 | 2016-11-23 | 芬纳吉有限公司 | For heating the thermal cell of vehicle |
| CN106898845A (en) * | 2015-12-18 | 2017-06-27 | 中国科学院大连化学物理研究所 | A kind of metal-air batteries system and its quick start method |
| CN107394291A (en) * | 2012-07-09 | 2017-11-24 | 斐源有限公司 | The system and method for controlling the operation of metal-air battery group |
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2017
- 2017-12-13 CN CN201711332282.5A patent/CN109921152B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5900330A (en) * | 1997-09-25 | 1999-05-04 | Kagatani; Takeo | Power device |
| CN107394291A (en) * | 2012-07-09 | 2017-11-24 | 斐源有限公司 | The system and method for controlling the operation of metal-air battery group |
| WO2015009836A1 (en) * | 2013-07-17 | 2015-01-22 | Elwha Llc | Cathode temperature regulation for metal-air batteries |
| CN106165192A (en) * | 2014-02-03 | 2016-11-23 | 芬纳吉有限公司 | For heating the thermal cell of vehicle |
| CN105161796A (en) * | 2015-09-12 | 2015-12-16 | 哈尔滨工业大学 | Aluminum air battery circulating and filtering system and method |
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