SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a testing apparatus for metal-air battery, which can realize the tests under different testing conditions and has a lower cost.
Based on above-mentioned purpose the utility model provides a pair of metal-air battery's testing arrangement, include: the device comprises an air source, a battery jar unit and a tester; the battery container unit includes: a groove body and a semi-sealed cavity; the tank body is used for accommodating an air cathode, a metal anode and electrolyte; the air cathode is arranged on the side wall of the tank body, one side of the air cathode can be contacted with the electrolyte, and the other side of the air cathode is exposed out of the side wall of the tank body and can be contacted with a test gas; the semi-sealed cavity is arranged outside the side wall of the tank body, a sealed cavity is formed by the semi-sealed cavity and the side wall, and one side of the air cathode exposed out of the side wall of the tank body is sealed in the sealed cavity; the gas source is connected with the sealed cavity through a first gas guide pipe, and a first valve is arranged on the first gas guide pipe; the tester is respectively connected with the air cathode and the metal anode.
in some optional embodiments, a buffer tank is arranged on the first air duct.
in some alternative embodiments, the buffer tank is provided with a pressure relief valve.
In some optional embodiments, the first valve is disposed on a portion of the first gas duct between the gas source and the buffer tank.
In some optional embodiments, a first gas flow meter is arranged on a part of the first gas guide pipe between the buffer tank and the sealed cavity.
In some optional embodiments, the mouth of the tank body is further provided with a tank cover.
In some alternative embodiments, the gas source comprises: a first tank for providing oxygen and a second tank for providing an auxiliary gas; the first gas tank is connected with the first gas guide pipe through a first gas guide branch pipe, and a second gas flowmeter is arranged on the first gas guide branch pipe; the second air tank is connected with the first air guide pipe through a second air guide branch pipe, and a third air flow meter is arranged on the second air guide branch pipe.
In some optional embodiments, the sealed cavity is detachably connected with the side wall of the groove body.
In some alternative embodiments, the battery well unit is provided in plurality; the plurality of battery jar units are arranged in series, and the sealed cavities of two adjacent battery jar units are connected through a second air duct; and the gas source is connected with the sealed cavity of the battery jar unit at the initial end through the first gas-guide tube.
In some optional embodiments, a second valve is disposed on the second airway tube.
From the above, the testing device for the metal-air battery provided by the utility model provides a testing gas for realizing different testing conditions through the gas source; meanwhile, through the arrangement of the sealed cavity, the effective reaction part of the air cathode is completely covered and is positioned in the sealed cavity, and the air cathode is matched with an air source to introduce test gas for testing, so that different testing requirements are met, the overall cost is low, and the air cathode is suitable for practical application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.
The embodiment of the utility model provides a metal-air battery's testing arrangement, refer to fig. 1, it includes: an air source 1, a battery jar unit 2 and a tester 3. The gas source 1 is used for providing a test gas, and the test gas is generally oxygen or a mixed gas of oxygen and other gases; in a specific implementation, the gas source 1 may be configured as a storage device of the test gas, such as a gas tank, an air bag, etc., and the gas source 1 may also be configured as a generation device of the test gas, such as an oxygen generator, etc. The battery container unit 2 is for constituting a metal-air battery to be tested. The tester 3 is connected with the battery jar unit 2, and forms a metal air battery loop together with the battery jar unit 2 as an electronic load, and the test is completed by controlling and adjusting the tester 3.
Specifically, the battery container unit 2 includes: a groove body 201 and a semi-sealed cavity 202. The tank 201 is used for accommodating an air cathode 001, a metal anode 002 and an electrolyte. According to the structure of the metal-air battery, the electrolyte is contained in the tank 201, and the air cathode 001 and the metal anode 002 are placed in the electrolyte to form the metal-air battery. Wherein, the air cathode 001 is arranged on the side wall of the tank body 201, one side of the air cathode 001 faces the inside of the tank body 201, and the side is contacted with the electrolyte; the other side of the air cathode 001 is exposed outside the sidewall of the tank 201 as an effective reaction site. Further, a semi-sealed cavity 202 is arranged outside the side wall of the tank body 201, and the semi-sealed cavity 202 and the side wall of the tank body 201 form a sealed cavity 203; the sealed cavity 203 can seal the side of the air cathode 001 exposed outside the sidewall of the tank 201.
in this embodiment, the gas source 1 is connected to the sealed cavity 203 via a first gas-guide tube 4. A first valve 401 is arranged on the first gas guide pipe 4 close to one side of the gas source 1, and a first gas flow meter 402 is arranged on the first gas guide pipe close to one side of the sealed cavity 203. The supply of the test gas can be controlled easily by opening and closing the first valve 401. Can monitor the gaseous flow of test through first gas flowmeter 402, cooperate first valve 401 simultaneously, can control the regulation to the gaseous flow of test to the realization is to the test of the battery performance under the different gas velocity of flow.
In this embodiment, the tester 3 is connected to the air cathode 001 and the metal anode 002, respectively. Specifically, the test terminals of the tester 3 are connected to the air cathode 001 and the metal anode 002, respectively, by wires. When the air cathode 001 and the metal anode 002 are fixedly connected, crocodile clips, metal connecting sheets, plug terminals and the like can be selected. During testing, the battery cell unit 2 including the air cathode 001, the metal anode 002 and the electrolyte constitutes a metal-air battery, and the tester 3 serves as an electronic load. The tester 3 is connected to the air cathode 001 and the metal anode 002 via wires, and as a whole, forms a battery circuit. The operation and the closing of the tester 3 are controlled through the switch of the tester 3, so that the battery jar unit 2 works, and the performance and the service life of the battery jar unit 2 can be tested by combining the tester included by the tester 3.
It can be seen that, in the testing device of this embodiment, the effective reaction part of the air cathode 001 is located in the sealed cavity 203 formed by the half-sealed cavity 202 and the side wall of the tank body 201, and the sealed cavity 203 is connected with the air source 1, and the inside of the sealed cavity 203 can form a testing gas environment meeting different testing conditions according to the supply of the air source 1, so as to meet different testing requirements. In general, the testing device of the embodiment has simple structure and low cost.
As an alternative embodiment, referring to fig. 2, the testing apparatus for a metal-air battery of this embodiment further includes, on the basis of the foregoing embodiment: a buffer tank 5. Further, in the present embodiment, the battery container unit 2 is provided in plurality.
Specifically, the buffer tank 5 is arranged on a pipeline of the first air duct 4 and is positioned between the air source 1 and the sealed cavity 203, and the buffer tank 5 forms a space for containing the test gas on the first air duct 4. At the beginning of the test, the flow rate of the test gas is generally high, and when the test gas is conveyed into the sealed cavity 203 through the long and narrow gas guide tube, the air cathode 001 may be damaged by the test gas with high flow rate. Through the arrangement of the buffer tank 5 in the embodiment, the test gas is buffered in the buffer tank 5 in the conveying process, the flow rate of the test gas is reduced to a certain degree, and the air cathode 001 can be effectively prevented from being damaged. Further, the buffer tank 5 is also provided with a pressure relief valve 501. By opening the pressure relief valve 501, the test gas can be discharged to the outside to adjust the pressure inside the test apparatus.
In this embodiment, referring to fig. 2, a first valve 401 is disposed on a portion of the first air duct 4 between the air source 1 and the buffer tank 5; and the first gas flowmeter 402 is provided with a first gas guide pipe 4 at a portion between the buffer tank 5 and the sealed chamber 203.
In the present embodiment, referring to fig. 2, a plurality of battery container units 2 are provided, and the plurality of battery container units 2 are provided in series. Specifically, two adjacent battery jar units 2 are connected through a second air duct 6, and two ends of the second air duct 6 are respectively connected with the sealing cavities 203 of the two adjacent battery jar units 2. The gas source 1 is connected with the sealed cavity 203 of the battery jar unit 2 at the initial end in the plurality of battery jar units 2 arranged in series through the first gas-guide tube 4. The battery jar units 2 are arranged in series, and the battery jar unit 2 at the starting end is the battery jar unit 2 directly connected with the first air duct 4. Based on above-mentioned result, when the test, the test gas that air supply 1 provided gets into the seal chamber 203 who is located the battery jar unit 2 of initial end through first air duct 4 after, passes through second air duct 6 again, can enter into the seal chamber 203 of a plurality of battery jar units 2 that establish ties and set up in proper order promptly to accomplish the test to a plurality of battery jar units 2, the promotion that is showing the efficiency of test.
further, in this embodiment, a second valve 601 is further disposed on the second gas-guiding tube 6. The supply of the test gas to each battery container unit 2 can be controlled easily and flexibly by opening and closing the second valve 601.
It should be noted that, in this embodiment, only three battery jar units 2 are taken as an example, and the embodiment of three battery jar units 2 does not constitute a limitation on the number of battery jar units 2, that is, in the implementation process of the present invention, the number of battery jar units 2 can be flexibly set according to the test requirement.
In an alternative embodiment, referring to fig. 3, the gas source 1 comprises: a first gas tank 101 and a second gas tank 102. The first gas tank 101 is connected with the first gas guide pipe 4 through a first gas guide branch pipe 7, and a second gas flowmeter 701 is arranged on the first gas guide branch pipe 7. The second gas tank 102 is connected with the first gas guide pipe 4 through a second gas guide branch pipe 8, and a third gas flow meter 801 is arranged on the second gas guide branch pipe 8.
In this embodiment, the first gas tank 101 is used for providing oxygen, the second gas tank 102 is used for providing auxiliary gas, and the oxygen and the auxiliary gas can be mixed to form the test gas for testing. The first gas tank 101 and the second gas tank 102 are connected with the first gas guide pipe 4 through the first gas guide branch pipe 7 and the second gas guide branch pipe 8 respectively, oxygen and auxiliary gas are collected to generate test gas, and the test gas is conveyed to the battery jar unit 2 through the first gas guide pipe 4 for testing. The second gas flowmeter 701 and the third gas flowmeter 801 are respectively arranged on the first gas guide branch pipe 7 and the second gas guide branch pipe 8, and the flow rates of oxygen and auxiliary gas can be respectively controlled through the second gas flowmeter 701 and the third gas flowmeter 801 and correspondingly arranged valves, so that test gas with different proportions can be mixed to meet different test requirements.
Note that, in the present embodiment, the number of the second gas tanks 102 is not limited to one. Obviously, it is also possible to provide a plurality of second gas tanks 102, store and supply different kinds of auxiliary gas in the plurality of second gas tanks 102, respectively, and provide the final test gas by mixing the different kinds of auxiliary gas supplied from the plurality of second gas tanks 102 with the first gas tank 101 and the supplied oxygen. That is, in a specific implementation, the number of the second gas tanks 102 and the different auxiliary gases respectively provided by the second gas tanks can provide a plurality of different types of test gases, and the application range of the test device of the embodiment is remarkably expanded.
In an alternative embodiment, in the battery well unit, the mouth of the well body is further provided with a well cover. Through the arrangement of the tank cover, the electrolyte in the tank body is isolated from the external air environment to a certain degree, so that the excessive evaporation of the electrolyte can be prevented, the pressure error caused by the evaporation of the electrolyte is eliminated, and the test accuracy is improved; meanwhile, the arrangement of the tank cover slows down the evaporation of the electrolyte, and the test cost is also reduced.
In an optional embodiment, the sealed cavity is detachably connected with the tank body, that is, the sealed cavity is detachably arranged on the side wall of the tank body. Specifically, the sealing cavity can be detachably connected with the groove body in a clamping structure, a negative pressure adsorption structure, a magnetic adsorption structure and other modes.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also combinations between technical features in the above embodiments or in different embodiments are possible, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.