CN108172948A - A kind of metal-air batteries system - Google Patents
A kind of metal-air batteries system Download PDFInfo
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- CN108172948A CN108172948A CN201611115144.7A CN201611115144A CN108172948A CN 108172948 A CN108172948 A CN 108172948A CN 201611115144 A CN201611115144 A CN 201611115144A CN 108172948 A CN108172948 A CN 108172948A
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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
- 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
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04276—Arrangements for managing the electrolyte stream, e.g. heat exchange
- H01M8/04283—Supply means of electrolyte to or in matrix-fuel cells
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04701—Temperature
- H01M8/04708—Temperature of fuel cell reactants
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- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Hybrid Cells (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The present invention provides a kind of metal-air batteries system, including metal-air batteries group, liquid pump, heat exchanger and liquid storage unit；The inlet of the liquid pump is connected with liquid storage unit, and the liquid outlet of the liquid pump is connected with heat exchanger inlet, and heat exchanger leakage fluid dram is connected with the injecting electrolytic solution mouth of metal-air batteries group；The electrolyte liquid outlet of the metal-air batteries group is connected with liquid storage unit, forms closed circuit；The monocell includes a monocell housing, the metal anode perpendicular to monocell housing bottom in monocell housing face, it is placed in opposite sides and the air cathode parallel with metal anode, the electrolyte cavities being made of monocell housing, metal anode and air cathode in battery case；The monocell housing of N sections is mutually parallel, is arranged in order from left to right, has liquid fluid injection sprue, drain sprue and air flow channel between the adjacent monocell housing；Flow equalization unit is provided in the fluid injection sprue.
Description
Technical field
The present invention relates to metal-air batteries system, specifically a kind of high consistency metal-air batteries system.
Background technology
Metal-air batteries are a kind of to use metal (such as magnesium, aluminium, zinc) oxygen is as oxygen in air for anode fuel
Agent, electrochemical reaction appts of the lye as electrolyte solution.The metals such as China's magnesium, aluminium, zinc rich reserves and cheap,
Therefore metal-air batteries are in movable power sources such as China's communication power supply, field emergency power supply, mains lighting supply and redundant electrical powers
Numerous areas has broad application prospects.
Since the operating voltage of metal-air batteries monomer only has 1-1.5V, the demand that has relative-high voltage rated is being encountered
Electrical equipment when, need that multiple metal/air cells in series get up to use, to obtain higher output voltage more；With this
Meanwhile powerful metal-air battery is then due to the chemical reaction heat of the generations such as internal irreversibility and ohmic polarization,
50% or so energy dissipation is heat, this partial heat makes battery temperature rise rapidly, battery electrolyte is caused when serious
It evaporates too fast, cell reaction area is caused to reduce or even cause cathode breakdown.So powerful metal-air batteries system
It is the temperature for reducing battery pack by the way of circular electrolyte is needed to take circulation products to exterior simultaneously more.In order to ensure
The cycle of electrolyte, battery pack generally use the endless form of electrolyte bottom in and top out, and multiple battery pack series connection then need to pass through master
Runner realizes connection, and as series-connected cell quantity increases, the flow difference in the unit interval in each single pond is gradually apparent, causes
Temperature difference is big in single pond, and then the difference of guiding discharge performance, because temperature control leads to the damage of cathode when serious.At present
Common solution is to increase the sectional area of sprue, but such that the size of battery pack increased dramatically, and reduces system
Ratio energy.
In the prior art, battery can be increased with bye-pass diameter ratio two ways by reducing flow velocity and increase main line
The consistency of each monocell injecting electrolytic solution of system.But reducing flow velocity has a certain range, and flow velocity is too low, and heat dissipation is unsatisfactory for requiring；
And increase main line and bye-pass diameter ratio, also have certain limitation, on the one hand because but bye-pass have row impurity in products demand it is same
When need to meet short circuit current, i.e. branch cannot be meticulous；The another aspect main line the big, more occupies volume.
Invention content
The present invention realizes that fluid uniformly divides in view of the above-mentioned problems, a kind of high consistency metal-air batteries system of invention
Match, improve battery system than energy and extend the actual life of cathode.
A kind of metal-air batteries system, including metal-air batteries group, liquid pump, heat exchanger and liquid storage unit；It is described
The inlet of liquid pump is connected with liquid storage unit, and the liquid outlet of the liquid pump is connected with heat exchanger inlet, heat exchanger leakage fluid dram
It is connected with the main liquid injection port of metal-air batteries group；The main leakage fluid dram of the metal-air batteries group is connected with liquid storage unit
It is logical, form closed circuit；The metal-air batteries group, include N section the monocell being connected in series with, the N be more than or equal to
2 integer；The monocell includes a monocell housing, is equipped in monocell housing central section perpendicular to monocell housing bottom
Metal anode is placed in opposite sides and the air cathode parallel with metal anode in battery case, by monocell housing, metal sun
Pole and air cathode form electrolyte cavities, and monocell lower part of the housing is equipped with the liquid liquid injection port of monocell and top is arranged equipped with liquid
Liquid mouth, the liquid injecting pipeline of both ends open is equipped at liquid liquid injection port, and liquid liquid injection port passes through side wall surface and the fluid injection of liquid injecting pipeline
Pipeline is connected；The Drainage pipe of both ends open is equipped at liquid leakage fluid dram, liquid leakage fluid dram passes through the side wall surface of Drainage pipe
It is connected with Drainage pipe；The monocell housing of N sections is mutually parallel, is arranged in order from left to right, the note of the monocell of the N sections
Liquid pipe road contacts to form fluid injection sprue successively, and the Drainage pipe of the monocell of the N sections contacts to form drain sprue successively,
There are gaps between the adjacent monocell housing to form air flow channel；The fluid injection sprue one or both ends are equipped with master
Liquid injection port is provided with flow equalization unit in fluid injection sprue, realizes the consistency of electrolyte flow.
Described fluid injection sprue one end is equipped with main liquid injection port, and the other end is closed, and the flow equalization unit is for one along fluid
Fluid injection sprue is separated into two independent regions by the partition board of flow direction setting, partition board, at the liquid liquid injection port of monocell
In in one of region, main liquid injection port is separated into two parts by partition board one end, the other end and fluid injection sprue sealed end there are
Main liquid injection port fluid is assigned as two strands by gap, partition board, and the liquid fluid injection of monocell is flowed into from battery pack fluid injection sprue both ends
Mouthful region, the fluid in fluid injection sprue is flowed into out of fluid injection sprue in the liquid liquid injection port of monocell, in limited sky
It is interior to shorten unidirectional flow channel length.
Described fluid injection sprue one end is equipped with main liquid injection port, and the other end is closed, and the flow equalization unit is a wedge block,
Wedge block is placed in along fluid flow direction in fluid injection sprue, make fluid injection sprue perpendicular to fluid flow direction sectional area from
Liquid injection port direction gradually uniformly reduces to sealed end or steps reduction, and the fluid in fluid injection sprue is out of fluid injection sprue
It flows into the liquid liquid injection port of monocell.
The fluid injection sprue is circular pipe, and one end is equipped with main liquid injection port, and the other end is closed, the flow equalization list
Member for one along axis coiled coil catch, length is identical with the length of fluid flow direction in the main fluid injection runner of battery pack, spiral shell
Away from for adjacent single cells liquid injection port spacing, excircle dimension is main fluid injection runner internal diameter；Monocell liquid injection port be in adjacent sea whelk it
Between.
Described fluid injection sprue one end is equipped with main liquid injection port, and the other end is closed, and the flow equalization unit can be a height
Incremental array protrusion partition board, the height of projection are gradually incremented by from main fluid injection direction to sealed end；Raised partition board is placed in phase
Between the liquid liquid injection port of adjacent monocell, height of projection refers to the height of the fluid flow direction in main fluid injection runner.
The flow equalization unit is the combination of above structure.
Described fluid injection sprue one end is equipped with main liquid injection port, and the other end is closed, and the flow equalization unit is for one along fluid
The partition board of flow direction setting is equipped with the through-hole of 2 or more in partition board upper edge fluid flow direction, and partition board divides fluid injection sprue
Be divided into two independent regions, the liquid liquid injection port of monocell is in one of region, the fluid that main liquid injection port flows into from
Another region is flowed into the liquid liquid injection port region of monocell, gradual from through-hole aperture in main liquid injection port to closed endplate
It reduces, the fluid in fluid injection sprue is flowed into out of fluid injection sprue in the liquid liquid injection port of monocell, is contracted in a limited space
Short unidirectional flow channel length.
The fluid injection sprue or be integrated with monocell or with monocell be two independent parts.
The balanced unit is processed as one with fluid injection sprue or is individually placed in fluid injection sprue after processing；
Compared with prior art, metal-air batteries of the present invention have the following advantages：
(1) electrolyte flow of high consistency effectively controls single pond performance (voltage, temperature etc.), and the electric discharge for improving system is held
Amount improves anode utilization rate, effectively extends cathode actual condition service life；
(2) flow equalization unit is built in fluid injection sprue, and stream is rationally promoted in the case where not increasing sprue dimensional conditions
Dynamic consistency, reduces system bulk, and raising system compares energy.
Description of the drawings
A kind of metal-air battery group structure diagrams of Fig. 1；
A kind of metal-air battery group structure diagram of both ends fluid-filling structures of Fig. 2；
The flow equalization cellular construction schematic diagram of diaphragm structure in Fig. 3 embodiments 1；
2 cross-sectional shapes of Fig. 4 embodiments are the flow equalization cellular construction schematic diagram of triangle wedge shape block structure；
Flow equalization cellular construction schematic diagram of 2 cross-sectional shapes of Fig. 5 embodiments for trapezoidal wedge-shaped block structure；
The flow equalization cellular construction schematic diagram of height incremental array protrusion diaphragm structure in Fig. 6 embodiments 3；
The flow equalization cellular construction schematic diagram of another incremental array protrusion diaphragm structure in Fig. 7 embodiments 3；
The flow equalization cellular construction schematic diagram of gradual change through-hole diaphragm structure in Fig. 8 embodiments 4；
The flow equalization cellular construction schematic diagram of coiled coil baffle structure in Fig. 9 embodiments 5.
In figure, 1- monocells, 2- fluid injection sprues, 3- drain sprues, the main liquid injection ports of 4-, the main leakage fluid drams of 5-, the main rows of 6-
The main fluid injection pipelines of liquid mouth A, 7-；8- partition boards, 9- partition boards one end, the 10- partition board other ends, the main fluid injection runner A sides of 11-, the main fluid injections of 12-
Runner B sides, 13- monocell liquid injection ports side
Specific embodiment
Comparative example 1：
Battery system is formed using 30 cells in series, and wherein single battery anode containing two panels, four cathodes, anode are
Aluminium alloy, size be 160mm × 150mm × 3mm, single battery cathode size be 170mm × 160mm × 3mm, single pond interpolar away from
For 2mm, electrolyte is the NaOH solution of 7mol/L, and 30 cells in series connection in battery pack (shown in Fig. 1) forms fluid injection
Sprue (2) and drain sprue, in battery system, main liquid injection port (4) connect with heat exchanger outlet, main leakage fluid dram (5) with
Reservoir connects, and forms electrolyte circulation system.Fig. 1 is metal-air battery group structure diagram.Electricity is carried out by circulating pump
Liquid cycle is solved, the autonomous liquid injection port of electrolyte flows into battery pack, each monocell is flowed by the liquid liquid injection port of each monocell, reaches
Drain is carried out after certain liquid level, drain sprue is flowed through and returns in reservoir.Table 1 is prior art metal-air battery system list
Battery data on flows table, the monocell far from main liquid injection port are as can be seen from the table, minimum between monocell labeled as monocell 1
Flow 49ml/min and maximum stream flow 493ml/min differ 430ml/min, and gap is larger, seriously affect cell system lifetime and
Discharge performance.Consider test error and battery difference, between taking monocell flow average value compared with maximum stream flow and minimum discharge,
Maximum stream flow is bigger 155ml/min than average value, and minimum discharge is smaller 256ml/min than average value.
1 prior art metal-air battery group monocell data on flows table of table
Comparative example 2：
Battery pack is formed using 30 cells in series, wherein single battery anode containing two panels, four cathodes, and anode is aluminium
Alloy, size be 160mm × 150mm × 3mm, single battery cathode size be 170mm × 160mm × 3mm, single pond interpolar away from for
2mm, electrolyte are the NaOH aqueous solutions of 7mol/L, 30 each own liquid injection ports of monocell (1) in battery pack (shown in Fig. 2) with
Leakage fluid dram is serially connected superposition, and the fluid injection sprue (2) and drain sprue (3), both ends for forming battery pack then form main fluid injection
Mouth A (4), main liquid injection port B (6), the metal-air battery group structure diagram that main leakage fluid dram A (5), Fig. 2 are both ends fluid-filling structure.
In practical engineering application, to reduce the flow difference between monocell, using improved procedure shown in Fig. 2, by two main liquid injection port A
(4) summarize to main fluid injection pipeline (7) with B (6) while fluid injection and carry out injecting electrolytic solution, shorten the fluid injection runner of battery pack with this
Length.Table 2 is the monocell flow distribution table of metal-air battery group in comparative example 1, and as can be seen from the table, monocell is minimum
Flow 164ml/min and maximum stream flow 415ml/min differs 251ml/min, is alleviated compared to comparative example 1, but due to outer
The main fluid injection pipeline put and the setting of two liquid injection ports, increase the volume of battery pack, while increase the difficulty of processing assembling
Degree and cost reduce the reliability of system.
Metal-air battery group monocell flow distribution table in 2 comparative example 2 of table
Embodiment 1
Battery pack structure is same as Example 1, but a main liquid injection port and a main leakage fluid dram are used only in the present embodiment,
A flow balanced unit is built-in in main fluid injection runner, the flow equalization unit is a diaphragm structure, along fluid flowing side
To setting, spacer width is main liquid injection pipe pipeline diameter 30mm, and length and sprue length are all mutually 600mm, partition board one end (9)
Bonding is close to main liquid injection port A (4) end point, injection electrolyte will be evenly dividing as two parts among sprue, and a part is from master
Start to be directly injected into each monocell of battery pack along monocell liquid injection port at liquid injection port A, another part is by marking off far from single
The fluid injection runner of battery side brings electrolyte to main liquid injection port B (6) side, and B sides are then sealed by end plate, electrolyte then along
Partition groove (10) partly flows back to monocell liquid injection port side runner, is injected inside monocell since B sides, in main fluid injection runner
In the confined space, the uniform filling of electrolyte is realized.Fig. 3 is that the flow equalization cellular construction of diaphragm structure in the present embodiment shows
It is intended to.Table 3 is metal-air battery group monocell flow distribution table in embodiment 1, as can be seen from the table, monocell minimum stream
210ml/min is measured, with average value 98ml；Maximum stream flow 392ml/min, with average value 88ml；Single pond 30 and comparison
Example 2 has clear improvement, and at the same time, embodiment 1 has very big simplification in structure, reduces the bulking value and cost of system.
Metal-air battery group monocell flow distribution table in 3 embodiment 1 of table
Embodiment 2
Battery pack structure is same as Example 1, but increases a wedge-shaped partition board, institute in the present embodiment in fluid injection sprue
Partition board cross sectional shape is stated as right angled triangle, the long edge lengths in right-angle side are main fluid injection flow channel length 600mm, in right-angle side
Bond length is that 4/5 main fluid injection flow diameter is 24mm, and bevel edge then corresponds to monocell liquid injection port side, triangle baffle on sprue
Thickness is about the 1/2 of main fluid injection flow diameter, is 15mm thick.It is main when main liquid injection port A sides injection electrolyte flows through triangle baffle
Runner inner section product is gradually reduced so that each monocell inlet static pressure is equal, in the more uniform injection monocell of electrolysis liquid energy
Portion, main liquid injection port B sides are then sealed by end plate, only A sides fluid injection.Fluid injection is carried out with 9L/min, measures each monocell
Between flow value it is as shown in table 4 below.In metal-air battery system feed rate difference, right-angle side bond length is with fluid injection stream
Amount is adjusted.Fig. 4 is the flow equalization cellular construction schematic diagram of the present embodiment intermediate cam shape diaphragm structure.Fig. 5 is 2 interval of embodiment
Plate cross sectional shape is the flow equalization cellular construction schematic diagram of trapezium structure.The test result and triangle of embodiment illustrated in fig. 5
Partition board approaches, but the flow value in single pond 30 increases 30ml/min relative to triangle baffle, it is known that minimum for improving system
Flow value is acted on, and reduces difference value.
Metal-air battery group monocell flow distribution table in 4 embodiment 2 of table
Embodiment 3
Battery pack structure is same as Example 1, but it is convex to increase in fluid injection sprue by an incremental array in the present embodiment
Partition board is played, septum plate length is main fluid injection flow channel length 600mm, and it is 24mm that width, which is 4/5 main fluid injection flow diameter, between ladder protrusion
Away from for monocell liquid injection port spacing 20mm, since main liquid injection port A sides, each ladder protrusion left side is located at monocell liquid injection port
Right side, the height of stepped protrusion longest edge is 2/3 main fluid injection flow diameter, and 20mm, stepped gradient is bevel edge side correspondence master
Monocell liquid injection port side on runner.When main liquid injection port A sides injection electrolyte flows through stepped partition board, electrolyte is due to ladder protrusion
Effect, generate tangential force injection monocell in, electrolysis liquid energy it is more uniform injection monocell inside, main liquid injection port B sides then lead to
It crosses end plate to be sealed, only the fluid injection of A sides.Fig. 6 and 7 is the flow equalization of incremental array protrusion diaphragm structure in embodiment
Cellular construction schematic diagram.By test result it is found that Fig. 6 embodiment test results corresponding with Fig. 7, uniform flow degree are slightly below
Embodiment 2, but flow difference is obviously reduced compared with comparative example 1, several single ponds of single Chi30Chu especially near liquid injection port, stream
Magnitude has apparent raising, significantly reduces the reaction temperature in monocell 30, avoids destruction of the cathode because of high temperature, and Fig. 6 is corresponded to
The weight of embodiment be less than embodiment 2, help to improve the ratio energy of system.
Embodiment 4
Battery pack structure is same as Example 1, but increases gradual change through-hole partition board in the present embodiment in main fluid injection runner, every
Plate length is main fluid injection flow channel length 600mm, spacer width 28mm, thickness 2mm, and Diameter Gradual Change is evenly arranged on partition board
Hole, hole quantity can be identical with monocell, are 30 or his 1/2, it is illustrated that are 15, spacing is noted for 2 times of monocells
Liquid mouth spacing is 40mm, and by 4-28 gradual changes, main fluid injection uniform flow passage is divided into two parts by gradual change hole partition board in aperture, during fluid injection, electricity
It solves liquid to inject from fluid injection flow passage side (13), monocell liquid injection port side (14) runner is entered by the hole on partition board, with electrolysis
The flowing of liquid, liquid outlet area constantly become smaller, and keep the variation of fluid injection sprue overall length static pressure, liquid outlet speed differs, and then makes
The flow that each monocell must be flowed through is equal.Fig. 8 is the flow equalization cellular construction signal of gradual change hole diaphragm structure in the present embodiment
Figure.After tested, the flow distribution in monocell has clear improvement compared to embodiment 1, but the branch flow passage length pair in monocell
Uniformity coefficient has larger impact, relatively a little less suitable for series connection joint number, the shorter battery system of monocell runner.
Embodiment 5
Battery pack structure is same as Example 1, but increases coiled coil catch in the present embodiment in fluid injection sprue, long
Degree with the main fluid injection flow channel length of battery pack is all mutually 600mm, screw pitch is monocell liquid injection port spacing 20mm, based on excircle dimension
Fluid injection runner internal diameter 30mm, spiral profile are rectangle 8mm*3mm, can be according to fluid injection flow-rate adjustment, when flow is big, rectangular area
Greatly, rotation direction can be it is left-handed can be dextrorotation, when main liquid injection port A sides injection electrolyte passes through helical baffle, by spiral tangential force
Effect, more uniform to inject inside monocell, main liquid injection port B sides are then sealed by end plate, only side fluid injection.Fig. 9
Flow equalization cellular construction schematic diagram for helical baffle structure in the present embodiment.After tested it is found that battery pack under the structure
Middle monocell flow distribution is greatly improved compared to embodiment 1, but slightly below embodiment 2, and because of the structure to electrolyte
Flow resistance it is smaller, in the case where ensureing flow of electrolyte, the voltage of liquid pump is substantially reduced, i.e., system power dissipation is dropped
It is low, be conducive to the discharge capacity of raising system.
Through the experimental verification in above-described embodiment, the increase of above-mentioned flow equalization unit or pass through internal both ends fluid injection reduce
Flow velocity shortens quantity of the monocell in side liquid flow path direction, improves the consistency of each monocell injecting electrolytic solution；Or by that will note
It is divided into both sides fluid injection inside liquid sprue, fluid injection sprue overall length static pressure is kept to change by gradual change hole, liquid outlet speed phase
Deng, it is ensured that the fluid injection flow near each monocell is equal, improves the consistency of each monocell injecting electrolytic solution；Or by gradually
Change sectional area of the fluid injection sprue along fluid injection direction so that each monocell inlet static pressure is equal, i.e., in guarantor unit's time
The equal raising consistency of flow in injection monocell is changed by spiral and waits internal flow-disturbing, is generated tangential force, is improved each single electric
The consistency of pond injecting electrolytic solution；Single pond performance (voltage, temperature are effectively controlled by the electrolyte flow of the high consistency of battery system
Degree etc.), the discharge capacity of system is improved, anode utilization rate is improved, effectively extends cathode actual condition service life；In addition, stream
Amount balanced unit is built in fluid injection sprue, and flowing consistency is rationally promoted in the case where not increasing sprue dimensional conditions, is reduced
System bulk weight, raising system compare energy.
Claims (9)
1. a kind of metal-air batteries system, including metal-air batteries group, liquid pump, heat exchanger and liquid storage unit；The liquid
The inlet of pump is connected with liquid storage unit, and the liquid outlet of the liquid pump is connected with heat exchanger inlet, heat exchanger leakage fluid dram with
The main liquid injection port of metal-air batteries group is connected；The main leakage fluid dram of the metal-air batteries group is connected with liquid storage unit,
Form closed circuit；The metal-air batteries group, includes the monocell being connected in series with of N sections, and the N is more than or equal to 2
Integer；The monocell includes a monocell housing, and the gold perpendicular to monocell housing bottom is equipped in monocell housing central section
Belong to anode, opposite sides and the air cathode parallel with metal anode in battery case are placed in, by monocell housing, metal anode
And air cathode forms electrolyte cavities, monocell housing is equipped with the liquid liquid injection port of monocell and liquid leakage fluid dram, liquid fluid injection
The liquid injecting pipeline of both ends open is equipped at mouthful, liquid liquid injection port passes through the side wall surface of liquid injecting pipeline to be connected with liquid injecting pipeline；Liquid
The Drainage pipe of both ends open is equipped at body leakage fluid dram, liquid leakage fluid dram passes through the side wall surface of Drainage pipe to be connected with Drainage pipe
It is logical；The monocell housing of N sections is mutually parallel, is arranged in order from left to right, and the liquid injecting pipeline of the monocell of the N sections is contacted successively
Fluid injection sprue is formed, the Drainage pipe of the monocell of the N sections contacts to form drain sprue successively, in described adjacent
There are gaps between monocell housing to form air flow channel；It is characterized in that：
The fluid injection sprue one or both ends are equipped with main liquid injection port, and flow equalization unit is provided in fluid injection sprue, realize
The consistency of electrolyte flow.
2. metal-air batteries system as described in claim 1, it is characterised in that：Described fluid injection sprue one end is equipped with main note
Liquid mouth, the other end is closed, and the partition board that the flow equalization unit is set for one along fluid flow direction, partition board is by fluid injection sprue
Two independent regions are separated into, the liquid liquid injection port of monocell is in one of region, and partition board one end is by main liquid injection port
Two parts are separated into, for the other end with fluid injection sprue sealed end there are gap, main liquid injection port fluid is assigned as two strands by partition board, from
Battery pack fluid injection sprue both ends flow into the liquid liquid injection port region of monocell, and the fluid in fluid injection sprue is from fluid injection master
It is flowed into the liquid liquid injection port of monocell in runner, shortens unidirectional flow channel length in a limited space.
3. metal-air batteries system as described in claim 1, it is characterised in that：Described fluid injection sprue one end is equipped with main note
Liquid mouth, the other end is closed, and the flow equalization unit is a wedge block, and wedge block is placed in fluid injection sprue along fluid flow direction
It is interior, make fluid injection sprue perpendicular to fluid flow direction sectional area from liquid injection port direction to sealed end gradually uniformly reduce or
Steps reduction, the fluid in fluid injection sprue are flowed into out of fluid injection sprue in the liquid liquid injection port of monocell.
4. metal-air batteries system as described in claim 1, it is characterised in that：The fluid injection sprue is circular pipe,
One end be equipped with main liquid injection port, the other end is closed, the flow equalization unit for one along axis coiled coil catch, length with electricity
The length of fluid flow direction is identical in the main fluid injection runner of pond group, and screw pitch is adjacent single cells liquid injection port spacing, and excircle dimension is
Main fluid injection runner internal diameter；Monocell liquid injection port is between adjacent sea whelk.
5. metal-air batteries system as described in claim 1, it is characterised in that：Described fluid injection sprue one end is equipped with main note
Liquid mouth, the other end is closed, and the flow equalization unit can be a height incremental array protrusion partition board, and the height of projection is from master
Fluid injection direction, which is risen to sealed end, to be gradually incremented by；Raised partition board is placed between the liquid liquid injection port of adjacent single cells, and height of projection is
Refer to the height of the fluid flow direction in main fluid injection runner.
6. metal-air batteries system as described in claim 1, it is characterised in that：The flow equalization unit is claim 3
With the combination of 5 structures.
7. metal-air batteries system as described in claim 1, it is characterised in that：Described fluid injection sprue one end is equipped with main note
Liquid mouth, the other end is closed, the partition board that the flow equalization unit is set for one along fluid flow direction, in partition board upper edge fluid stream
Dynamic direction is equipped with the through-hole of 2 or more, and fluid injection sprue is separated into two independent regions, the liquid fluid injection of monocell by partition board
For mouth in one of region, the fluid that main liquid injection port flows into flows into the liquid liquid injection port location of monocell from another region
It in domain, is gradually reduced from through-hole aperture in main liquid injection port to closed endplate, the fluid in fluid injection sprue is from fluid injection sprue
It is interior to flow into the liquid liquid injection port of monocell, shorten unidirectional flow channel length in a limited space.
8. the metal-air batteries system as described in claim 1-7 is any, it is characterised in that：The fluid injection sprue or with list
Battery is integrated or is two independent parts with monocell.
9. metal-air batteries system as claimed in claim 8, it is characterised in that：The balanced unit or with fluid injection sprue
It is processed as one or individually after processing in merging fluid injection sprue.
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| CN110071307A (en) * | 2019-04-29 | 2019-07-30 | 北京理工大学 | A kind of metal-air battery system and vehicle |
| CN111326832A (en) * | 2018-12-14 | 2020-06-23 | 中国科学院大连化学物理研究所 | Metal/air battery pack |
| CN112542637A (en) * | 2020-12-30 | 2021-03-23 | 绿业中试低碳科技（镇江）有限公司 | Aluminum air battery module |
| CN112751059A (en) * | 2021-01-06 | 2021-05-04 | 清华大学 | Monomer body for metal-air battery monomer and metal-air battery monomer |
| CN112864496A (en) * | 2021-02-02 | 2021-05-28 | 绿业中试低碳科技（镇江）有限公司 | Large-scale aluminum-air battery pressurization and drying system and pressurization and drying control method thereof |
| CN112886102A (en) * | 2021-01-20 | 2021-06-01 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle and metal air fuel cell, electrolyte tank and tank cover thereof |
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