CN106601943A - Integrated parallel-flow lithium flow battery reactor - Google Patents

Integrated parallel-flow lithium flow battery reactor Download PDF

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Publication number
CN106601943A
CN106601943A CN201510680901.4A CN201510680901A CN106601943A CN 106601943 A CN106601943 A CN 106601943A CN 201510680901 A CN201510680901 A CN 201510680901A CN 106601943 A CN106601943 A CN 106601943A
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China
Prior art keywords
negative pole
porous
positive pole
layer
lithium
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CN201510680901.4A
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Chinese (zh)
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CN106601943B (en
Inventor
陈永翀
张晓虎
张艳萍
张萍
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Nanjing Jingyu Energy Co.,Ltd.
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BEIJING HAWAGA POWER STORAGE TECHNOLOGY Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/02Details
    • H01M8/0202Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0247Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
    • H01M8/0256Vias, i.e. connectors passing through the separator material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

Abstract

The invention provides an integrated parallel-flow lithium flow battery reactor, which comprises a battery frame and isolating windows, wherein the battery frame is an internal-hollow cuboid; multiple pairs of through hollow grooves for accommodating the isolating windows are arranged in two opposite surfaces A-A1 of the cuboid; multiple isolating windows are sequentially arranged and inserted into the through hollow grooves according to the order that current collecting layers with the same polarity are oppositely arranged to form alternately spaced positive reaction cavities and negative reaction cavities; and one positive flow channel groove is arranged between two through hollow grooves for forming each positive reaction cavity in the surfaces A-A1 and one negative flow channel groove is arranged in the position, corresponding to each negative reaction cavity, in the surfaces A-A1. An integral design is adopted by the battery reactor, so that sealing and fixing by using locking force are avoided, the sealing hidden danger caused by stress imbalance is avoided, meanwhile, the weight of an end plate and a pull rod is removed, the power-to-weight ratio of the battery reactor is relatively improved, and the battery reactor is simple to manufacture and convenient to assemble.

Description

Integrated downflow type lithium flow battery reactor
Technical field
The invention belongs to electrochemical energy storage cell field, more particularly to a kind of lithium flow battery reactor.
Background technology
Lithium flow battery is a kind of electrochemical cell art that latest development is got up, and it combines lithium ion battery and flow battery Advantage, is that a kind of output and stored energy capacitance are independent of one another, and energy density is big, cost is relatively low, the novel secondary of high safety Battery.It acts not only as the supporting energy storage device of solar energy, wind power generation system, is also used as the peak adjusting device of electrical network, Transmission of electricity quality is improved, power grid security is ensured.
Lithium flow battery reactor provides place for the mutual conversion of electric energy and chemical energy, is the core of lithium redox flow battery energy storage system Device, has important impact to performances such as battery system cost, the power of battery, energy efficiency and cycle lives.Existing liquid stream If cell reaction device is mainly layered on top of each other by dry part constituting, in order to ensure the sealing of cell reaction device, need between layers Bondd by corrosion-resistant binding agent, while end plate need to be provided with the two ends of cell reaction device, pull bar and spring or screw are equipped with by end Plate is locked and obtains required coupling mechanism force, and this stacking locking mechanism has problems with:First, coupling mechanism force needs to meet anti-simultaneously Balancing force after answering the power needed for device sealing, the support force needed for stepped construction and expanding with heat and contract with cold, and one of power can not meet Shi Junhui causes to seal hidden danger, greatly have impact on the service life of cell reaction device;2nd, stepped construction, end plate and pull bar Weight is larger, reduces the gravimetric specific power of cell reaction device;3rd, battery assembling complex procedures, and sealing is poor.
The content of the invention
For the problems referred to above for overcoming current flow battery reactor to exist, it is an object of the invention to provide a kind of lithium of integration The battery frame of inner hollow is divided into the chamber at several positive and negative intervals by isolation window for flow battery reactor, the cell reaction device Room, each chamber flow into corresponding electrode suspension.Cell reaction device accommodates fixed reaction chamber using the framework of integrated design Room, it is to avoid fixed using coupling mechanism force sealing, will not cause to seal hidden danger because of unbalance stress, while cell reaction device eliminates end The weight of plate and pull bar, the relative power-weight ratio that improve cell reaction device, and cell reaction device are simple to manufacture, easy to assembly.
It is as follows that the present invention provides technical scheme:
Integrated downflow type lithium flow battery reactor, including battery frame, isolation window, it is characterised in that:The battery frame For the cuboid of inner hollow, cuboid is containing three groups of opposite face A-A1Face, B-B1Face and C-C1Face;
The isolation window includes " returning " type forms and is located at the bipolarity sealing coat that two panels " goes back to " between type forms middle vacancy, Wherein bipolarity sealing coat be the porous anode current collector layer that is in close contact by sealing coat and positioned at sealing coat both sides and with sealing coat and Porous negative pole currect collecting layer is constituted;In the relative two sides A-A of cuboid1Face is provided with some straight-through dead slots to accommodating the isolation window, Several described isolation windows are arranged in order the straight-through dead slot of insertion according to identical polar current collector layer order staggered relatively, constitute and mutually hand over Positive pole reaction chamber and negative reaction chamber for interval;The isolation window and C-C1Face is parallel;
In A-A1Positive pole flow path groove is provided between two straight-through dead slots of face composition positive pole reaction chamber, positive pole suspension passes through positive pole stream Road groove accomplished continuously or intermittently flows in positive pole reaction intracavity, in A-A1It is provided with negative between two straight-through dead slots in face composition negative reaction chamber Pole flow path groove, negative pole suspension are accomplished continuously or intermittently flowed in negative reaction intracavity by negative pole flow path groove.
In A-A1On face, between the straight-through dead slot and positive pole flow path groove and negative pole flow path groove for accommodating isolation window, it is more than zero apart from d, And length L of straight-through dead slot1More than length L of flow path groove2, it is therefore an objective to the mutual seepage between electrode suspension is avoided, is convenient to Isolation window and battery frame fixing seal.
The battery frame material for insulation resistant material, preferably the one kind in polypropylene, polyethylene, politef or It is several, or the stainless steel and other metal materials of insulation liner resistant material;Size is:A length of 100mm~1000mm, it is excellent Elect 300mm~800mm as;A width of 80mm~800mm, preferably 100mm~600mm;A height of 80mm~800 Mm, preferably 100mm~600mm.
The distance between described two neighboring anode collection layer is 1mm~20mm, the as height of positive pole reaction chamber;The phase The distance between adjacent two negative pole currect collecting layers are 0.5mm~15mm, the as height in negative reaction chamber.
The isolation window includes bipolarity sealing coat and " returning " type forms, and two panels hollow forms are compressed by bonding, mould, normal Bipolarity sealing coat is fixed on vacancy in forms by the modes such as warm cast, hot-pressing processing, and the material of " time " the type forms is electricity Insulating sublayer material, preferably polypropylene, polyethylene, one or more in politef.
The isolation window is inserted into the sky in the straight-through dead slot of battery frame, between isolation window and straight-through dead slot by the draw-in groove for arranging Gap is sealed by modes such as bonding, room temperature cast, high-temperature injections.
The bipolarity sealing coat is the porous anode afflux being in close contact by sealing coat and positioned at sealing coat both sides and with sealing coat What layer and porous negative pole currect collecting layer were constituted.Wherein, the sealing coat for isolation porous anode current collector layer and porous negative pole currect collecting layer simultaneously The electronics in battery is prevented from passing freely through, and electrolyte or the lithium ion in gel electrolyte can freely through electronics it is exhausted Edge layer, its thickness are 0.005mm~1mm.Porous anode current collector layer and porous negative pole currect collecting layer are all lithium ion and electronics Freely through ion/electronics hybrid conductive layer, its thickness are all 10 μm~1000 μm, and its through hole porosity is 10%~85%, 0.01 μm~500 μm of pore diameter range.
Further, described sealing coat is polyethylene, polypropylene, Kynoar or the nonconducting porous polymeric of other electronics Thing material;Or, sealing coat is not led for glass fibre non-woven, non-woven fabrics of synthetic fiber, ceramic fiber paper or other electronics The Inorganic Non-metallic Materials of electricity and the composite porous material of organic polymer;Or, the material of sealing coat is nonconducting using electronics Polymeric matrix, liquid organic plasticizers and three part of lithium salts are combined the gel polymer electrolyte composite of composition.Further, The hole of the composite porous material of the nonconducting porous polymer material of described electronics, Inorganic Non-metallic Materials and organic polymer The electrolyte or polymeric colloid material of ionic conduction are impregnated with inside.
The porous anode current collector layer is the porous mixture of conductive filler and binding agent, wherein, conductive filler be titanium valve, aluminium powder, Argentum powder, rich lithium silica flour, lithium alloys powder metalloid alloy conductive particle, or one or more in material with carbon element containing lithium, lead The mass fraction of electric filler is not less than 70%.Or, the porous anode current collector layer is the metal conducting layer with loose structure, Metal conducting layer is that the metal wire knitted of tinsel or surface with conductive carbon material coating is formed, and mesh is square, rhombus, length Square or polygon etc.;Or, the metal conducting layer is the porous foam metal layer with loose structure, or golden for porous Category plate or the mechanical stamping of metal forming Jing or chemical attack are formed, the material of metal conducting layer be aluminum, alloy aluminum, rustless steel, silver, Stannum or titanium, preferably aluminum.Or, the porous anode current collector layer is electric conduction of carbon fiber cloth, tinsel is mixed with organic fiber silk Conductive fabric, surface-coated conductive carbon material coating are coated with the porous organic material of metallic film, the porous organic material bag Including natural linen-cotton, terylene, aramid fiber, nylon, polypropylene, polyethylene, politef and other electrolyte resistances can be good Organic substance.Or, the porous anode current collector layer is the polyelectrolyte floor for being added with above-mentioned conductive filler, the polymer Dielectric substrate is the gel polymer electrolyte composite wood that polymeric matrix, liquid organic plasticizers and three part of lithium salts are combined composition Material.Or, the porous anode current collector layer by above-mentioned several current collector layers in any Composite Set fluid layer that two or more constitute.
The porous negative pole currect collecting layer is conductive filler and binding agent porous mixture, wherein, conductive filler be titanium valve, copper powder, Argentum powder, rich lithium silica flour, lithium alloys powder metalloid alloy conductive particle, or carbon black, CNT, carbon fiber, graphite One or more in alkene, material with carbon element containing lithium, the mass fraction of conductive filler are not less than 70%.Or, the porous negative pole collection Fluid layer is the metal conducting layer with loose structure, and metal conducting layer is the metal of tinsel or surface with conductive carbon material coating Silk braiding is formed, and mesh is square, rhombus, rectangle or polygon etc.;Or, the metal conducting layer is to tie with porous The porous foam metal layer of structure, or be that expanded metal or the mechanical stamping of metal forming Jing or chemical attack are formed, metal conducting layer Material be rustless steel, nickel, titanium, silver, stannum, tin-coated copper, nickel-clad copper, silver-plated copper, preferably nickel-clad copper.Or, it is described Porous negative pole currect collecting layer is electric conduction of carbon fiber cloth, tinsel and organic fiber silk hybrid conductive cloth, the painting of surface-coated conductive carbon material Layer is coated with the porous organic material of metallic film, the porous organic material include natural linen-cotton, terylene, aramid fiber, nylon, The good Organic substance of polypropylene, polyethylene, politef and other electrolyte resistances energy.Or, the porous negative pole currect collecting Layer is the polyelectrolyte floor for being added with above-mentioned conductive filler, and the polyelectrolyte floor is polymeric matrix, liquid is organic Plasticizer and three part of lithium salts are combined the gel polymer electrolyte composite of composition.Or, the porous negative pole currect collecting layer is Any Composite Set fluid layer constituted by two or more in above-mentioned several current collector layers.
Preferably, electrode layer can be provided with the porous afflux layer surface, wherein electrode layer is electrode active material, conductive agent And/or the mixture of binding agent is solid by the mode such as the tape casting, infusion process or showering, thermal spraying, brushing or bonding, two-sided roll-in It is scheduled on the both sides of porous current collector layer and is dried drying and is obtained;Or, by the tape casting, showering, thermal spraying, brushing, bonding, Or the mode such as one side roll-in is fixed on opposite side that porous current collector layer contacted with sealing coat and is dried drying and is obtained;The mixture is pressed Mass percent consists of electrode active material:Conductive agent:Binding agent=40~95%:1~30%:0~20%.
The anode collection layer of the bipolarity sealing coat is provided with positive pole ear, and negative pole currect collecting layer is provided with negative lug, positive pole ear and Negative lug is drawn by " returning " type forms, the preferably diagonal extraction of positive pole ear and negative lug from bipolarity sealing coat.
In the cell reaction device, all positive pole ears are connected with Positive Poles, and the Positive Poles are conductive aluminium bar or plated surface The plastic bar of aluminum, Positive Poles are fixed on battery frame;All negative lugs are connected with negative pole pole, and the negative pole pole is The plastic bar of conductive copper bar or copper coating, negative pole pole are fixed on battery frame.
Further, present invention integration lithium flow battery reactor also includes:Flow distribution plate and cylinder manifold, wherein, flow distribution plate is located at The face A sides of battery frame and it is in close contact and fixes with face A, cylinder manifold is located at the face A of battery framework1Side and with face A1Closely Contact and fix.
The flow distribution plate is respectively provided on two sides with positive pole sprue and negative pole sprue along edge, while according to positive pole flow path groove and negative pole The position of flow path groove and quantity, correspond on flow distribution plate and arrange positive pole sub-runner and negative pole sub-runner, and sub-runner is respectively provided with Positive pole tap hole and negative pole tap hole, the positive pole sprue are communicated with positive pole sub-runner, and the negative pole sprue is shunted with negative pole Road is communicated, and positive pole sprue, positive pole sub-runner and negative pole sprue, negative pole sub-runner are not communicated with.The positive pole sprue with just Pole inlet is connected, and negative pole sprue is connected with negative pole inlet.
The cylinder manifold structure is identical with manifold structure, and positive pole sprue is connected with positive pole liquid outlet, negative pole sprue and negative pole Liquid outlet is connected.
The positive pole flow distribution plate, positive pole cylinder manifold, the negative pole flow distribution plate and negative pole panel material that confluxes is insulation resistant material, excellent Elect one or more in polypropylene, polyethylene, politef as.
When integrated downflow type lithium flow battery reactor works, positive pole suspension enters the positive pole master of flow distribution plate from positive pole inlet Runner, is reacted into positive pole reaction chamber by the positive pole tap hole of positive pole sub-runner bottom, positive pole suspension after the completion of reaction Flowed out to by the positive pole tap hole on cylinder manifold on the positive pole flow manifold on cylinder manifold, finally by positive pole sprue Jing positive poles Liquid outlet flows out;Meanwhile, negative pole suspension enters the negative pole sprue of flow distribution plate from negative pole inlet, by negative pole sub-runner bottom The negative pole tap hole in portion reacts into negative reaction chamber, and after the completion of reaction, negative pole suspension is by the negative pole point on cylinder manifold On the negative pole sub-runner that discharge orifice is entered on cylinder manifold, flow out finally by negative pole sprue Jing negative poles liquid outlet.
The type of flow of semisolid lithium flow battery reactor electrodes suspension of the present invention adopts downflow type, only with one group of flow distribution plate And cylinder manifold, simply, summation watt rating is higher for package assembly.
The technical advantage of the present invention is embodied in:
(1) compared with stacking locking mechanism, the sealing between the lithium flow battery structure of reactor of integration need not consider per layer is solid It is fixed, the safety of battery is improve, meanwhile, the structure of integration is also eliminated for providing end plate, pull bar and the bullet of coupling mechanism force The weight of the parts such as spring, improves the gravimetric specific power of cell reaction device;
(2) integrated lithium flow battery reactor is simple to manufacture, easy to assembly, reduces battery cost, reduces quantities.
Description of the drawings
Fig. 1 is lithium flow battery reactor cell circuit theory schematic diagram of the present invention, wherein, figure (a) shows for battery frame structure It is intended to, A-A1Face, B-B1Face and C-C1Three group opposites of the face for battery framework, figure (b) is battery framework in (a) figure Along M-M1The profile in direction, figure (c) is battery framework A face front view;100-battery frame;101-straight-through dead slot; 102-positive pole flow path groove;103-negative pole flow path groove;In A-A1Lead directly between dead slot and positive pole flow path groove or negative pole flow path groove on face Distance is d, leads directly to length L of dead slot1, length L of positive pole flow path groove2, length L of negative pole flow path groove2
Fig. 2 is isolation window assembly structure diagram of the present invention, wherein, 200-isolation window;201-sealing coat;202-porous is just Pole current collector layer;203-porous negative pole currect collecting layer;204-" returning " type forms;205-positive pole ear;206-negative lug;
Fig. 3 is manifold structure schematic diagram in the embodiment of the present invention 1, wherein, figure (a) is manifold structure schematic diagram, is schemed (b) It is flow distribution plate along N-N1The sectional view in direction;300-flow distribution plate;301-positive pole sprue;302-negative pole sprue;303 - positive pole sub-runner convex body;304-negative pole sub-runner convex body;305-positive pole tap hole;306-negative pole tap hole;307-hold Receive groove;308-positive pole sub-runner;309-negative pole sub-runner;
Fig. 4 is present invention integration lithium flow battery reactor assembly structure diagram, wherein 401-positive pole diversion rod;402— Negative pole diversion rod;
The integrated downflow type lithium flow battery structure of reactor schematic diagrams of Fig. 5, wherein, 500-integrated downflow type lithium liquid stream electricity Pond reactor;501-positive pole inlet;502-positive pole liquid outlet;503-negative pole inlet;504-negative pole liquid outlet;505 - cylinder manifold.
Specific embodiment
Below in conjunction with the accompanying drawings, by embodiment, the present invention will be further described.
Embodiment one:
A kind of 1kW~10kW integration downflow type lithium flow batteries reactor 500 is provided in the present embodiment, including battery frame 100th, isolation window 200, flow distribution plate 300, cylinder manifold 505, positive pole diversion rod 401, negative pole diversion rod 402, positive pole inlet 501, positive pole liquid outlet 502, negative pole inlet 503, negative pole liquid outlet 504.
Wherein, 100 material of battery frame is teflon insulation resistant material, and size is:A length of 800mm, it is a width of 500mm, a height of 500mm.The relative two sides A-A of battery frame 1001Face is provided with 100 pairs and accommodates the isolation window 200 101,100 isolation windows 200 of straight-through dead slot are arranged in order insertion battery frame according to identical polar current collector layer order staggered relatively In 100 straight-through dead slot 101, composition alternates positive pole reaction chamber and the negative reaction chamber at interval, two neighboring porous anode The chamber formed between current collector layer 202 is positive pole reaction chamber, and the chamber formed between two neighboring porous negative pole currect collecting layer 203 is Negative reaction chamber, the height of positive pole reaction chamber is 6mm, and the height in negative reaction chamber is 8mm.
In A-A1The position of face correspondence positive pole reaction chamber is provided with positive pole flow path groove 102, and positive pole suspension is by positive pole flow path groove just Pole reaction intracavity accomplished continuously or intermittently flows, in A-A1The position in face correspondence negative reaction chamber is provided with negative pole flow path groove 103, and negative pole hangs Supernatant liquid is accomplished continuously or intermittently flowed in negative reaction intracavity by negative pole flow path groove.
In A-A1On face, accommodate isolation window 200 straight-through dead slot 101 and positive pole flow path groove 102 between apart from d be 1mm, Between straight-through dead slot 101 and negative pole flow path groove 103 apart from d be 1mm, lead directly to dead slot 101 length L1For 450mm, just Length L of pole flow path groove or negative pole flow path groove2For 400mm, length L of dead slot 101 is led directly to1More than positive pole flow path groove or negative stream Length L of road groove2, it is therefore an objective to the mutual seepage between electrode suspension is avoided, facilitates isolation window 200 close with battery frame 100 Sealing is fixed.
Isolation window 200 includes " returning " type forms 204 and is located at the bipolarity in vacancy during two panels " is returned " between type forms 204 Sealing coat, two panels " return " type forms 204 and bipolarity sealing coat are fixed on vacancy in forms by bonding processing mode, described Polytetrafluoroethylmaterial material of the material of " returning " type forms for electronic isolation, bipolarity sealing coat are by sealing coat 201 and are located at 201 both sides of sealing coat and with sealing coat 201 be in close contact porous anode current collector layer 202 and porous negative pole currect collecting layer 203 constitute.
Isolation window 200 is inserted in the straight-through dead slot 101 of battery frame 100 by the draw-in groove for arranging, isolation window 200 with it is straight-through Space between dead slot 101 is sealed by modes such as bondings.
The porous anode current collector layer 202 of bipolarity sealing coat is provided with positive pole ear 205, and porous negative pole currect collecting layer 203 is provided with negative pole Lug 206, positive pole ear 205 and negative lug 206 do diagonal extraction by " returning " type forms 200.Positive pole ear 205 It is connected on positive pole diversion rod 401 by way of welding, negative lug 206 is connected to negative pole diversion rod by way of welding On 402.
In the present embodiment, flow distribution plate 300 is located at the face A sides of battery frame 100 and is in close contact with face A and fixed, fixed form Fastened using screw rod and adhesive sealing, flow distribution plate 300 is respectively provided on two sides with positive pole sprue 301 and negative pole sprue 302 along edge, Position and quantity according to positive pole flow path groove 102 and negative pole flow path groove 103, corresponds on flow distribution plate 300 and just arranges simultaneously Pole sub-runner 308 and negative pole sub-runner 309, sub-runner are respectively provided with positive pole tap hole 305 and negative pole tap hole 306, positive pole master Runner 301 is connected with positive pole sub-runner 308, and negative pole sprue 302 is connected with negative pole sub-runner 309, positive pole sprue 301, Positive pole sub-runner 308 is not communicated with negative pole sprue 302, negative pole sub-runner 309.
In the present embodiment, flow distribution plate 300 is provided with positive pole sub-runner convex body 303 and negative pole sub-runner convex body 304, and positive pole sub-runner is convex Body 303 is embedded in positive pole flow path groove 102, and negative pole sub-runner convex body 304 is embedded in negative pole flow path groove 103, improves electrode The sealing of Fibre Suspensions.
505 structure of cylinder manifold is identical with 300 structure of flow distribution plate, and flow distribution plate 300 is provided with and can accommodate positive pole ear 205 and positive pole The holding tank of diversion rod 401, cylinder manifold are provided with the holding tank that can accommodate negative lug 206 and negative pole diversion rod 402.
Positive pole sprue 301 on flow distribution plate 300 is connected with positive pole inlet 501, negative pole sprue 302 and negative pole inlet 503 connections.Positive pole sprue on cylinder manifold 505 is connected with positive pole liquid outlet 502, negative pole sprue and negative pole liquid outlet 504 Connection.
Flow distribution plate 300 and 505 material of cylinder manifold are insulation resistant material politef.
When integrated downflow type lithium flow battery reactor 500 works, positive pole suspension enters flow distribution plate from positive pole inlet 501 300 positive pole sprue 301, is reacted into positive pole reaction chamber by the positive pole tap hole 305 of 308 bottom of positive pole sub-runner, After the completion of reaction, positive pole suspension flows out to the positive pole flow manifold on cylinder manifold 505 by the positive pole tap hole on cylinder manifold 505 On, flow out finally by positive pole sprue Jing positive poles liquid outlet 502;Meanwhile, negative pole suspension is entered from negative pole inlet 503 The negative pole sprue 302 of flow distribution plate 300, enters negative reaction chamber by the negative pole tap hole 306 of 309 bottom of negative pole sub-runner React, after the completion of reaction, negative pole suspension is entered on cylinder manifold 505 by the negative pole tap hole on cylinder manifold 505 On negative pole sub-runner, flow out finally by negative pole sprue Jing negative poles liquid outlet 504.
Embodiment two:
In the present embodiment, during isolation window 200 includes " returning " type forms 205 and " returns " between type forms 205 positioned at two panels The bipolarity sealing coat in vacancy, wherein bipolarity sealing coat be by sealing coat 201 and be located at 201 both sides of sealing coat and with isolate The porous anode current collector layer 202 and porous negative pole currect collecting layer 203 that layer 201 is in close contact is constituted.
Wherein, sealing coat 201 is for the positive and negative current collector layer of isolation and prevents the electronics in battery from passing freely through, and electrolyte or Lithium ion in gel electrolyte can freely through electric insulators, its thickness be 0.2mm.Porous anode current collector layer 202 With porous negative pole currect collecting layer 203 be all lithium ion and electronics can freely through ion/electronics hybrid conductive layer, its thickness is all 200μm.Porous anode current collector layer 202 and porous negative pole currect collecting layer 203 are positioned over the both sides of sealing coat 201, and and sealing coat 201 are in close contact, and " returning " type forms 205 are by hot-pressing processing fixed form and porous anode current collector layer 202, sealing coat 201 It is combined with each other with the edge of porous negative pole currect collecting layer 203.
The material of composition sealing coat 201, porous anode current collector layer 202 and porous negative pole currect collecting layer 203 is as shown in table 1.
1 sealing coat of table, porous anode current collector layer and porous negative pole currect collecting layer material
Other contents of the present embodiment are identical with embodiment one.
The specific embodiment of the invention is not limited to the present invention.Any those of ordinary skill in the art, without departing from the present invention Under technical scheme ambit, many possibility are made to technical solution of the present invention using the methods and techniques content of the disclosure above all Variation and modification, or Equivalent embodiments for being revised as equivalent variations.Therefore, every content without departing from technical solution of the present invention, According to the technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, this is still fallen within In the range of bright technical scheme protection.

Claims (10)

1. integrated downflow type lithium flow battery reactor, including battery frame, isolation window, the battery frame is inner hollow Cuboid, cuboid contain three groups of opposite face A-A1Face, B-B1Face and C-C1Face:
The isolation window includes " returning " type forms and is located at the bipolarity sealing coat that two panels " goes back to " between type forms middle vacancy, Wherein bipolarity sealing coat be the porous anode current collector layer that is in close contact by sealing coat and positioned at sealing coat both sides and with sealing coat and Porous negative pole currect collecting layer is constituted;In the relative two sides A-A of cuboid1Face is provided with some straight-through dead slots to accommodating the isolation window, Several described isolation windows are arranged in order the straight-through dead slot of insertion according to identical polar current collector layer order staggered relatively, constitute and mutually hand over Positive pole reaction chamber and negative reaction chamber for interval;The isolation window and C-C1Face is parallel;
In A-A1Positive pole flow path groove is provided between two straight-through dead slots of face composition positive pole reaction chamber, positive pole suspension passes through positive pole stream Road groove accomplished continuously or intermittently flows in positive pole reaction intracavity, in A-A1It is provided with negative between two straight-through dead slots in face composition negative reaction chamber Pole flow path groove, negative pole suspension are accomplished continuously or intermittently flowed in negative reaction intracavity by negative pole flow path groove.
2. integration downflow type lithium flow battery reactor as claimed in claim 1, it is characterised in that:In A-A1On face, It is more than zero, and the length of straight-through dead slot apart from d between the straight-through dead slot and positive pole flow path groove and negative pole flow path groove for accommodating isolation window Degree L1More than positive pole flow path groove or length L of negative pole flow path groove2
3. integration downflow type lithium flow battery reactor as claimed in claim 1, it is characterised in that:The battery frame material Expect for the resistant material, preferably one or more in polypropylene, polyethylene, politef of insulating;A length of 100mm~ 1000mm, a width of 80mm~800mm, a height of 80mm~800mm.
4. integration downflow type lithium flow battery reactor as claimed in claim 1, it is characterised in that:The isolation window includes Bipolarity sealing coat and " returning " type forms, two panels " return " type forms poured into a mould by bonding, mould compression, room temperature, at hot pressing Bipolarity sealing coat is fixed on vacancy in forms by the modes such as reason;The material of " time " the type forms is electrical insulating material, excellent Elect one or more in polypropylene, polyethylene, politef as.
5. integration downflow type lithium flow battery reactor as claimed in claim 1, it is characterised in that:The sealing coat be every From porous anode current collector layer and the electric insulators of porous negative pole currect collecting layer, the electric insulators electronics can not pass freely through, and electric Lithium ion in solution liquid can be passed freely through, and its thickness is 0.005mm~1mm;
Sealing coat is polyethylene, polypropylene or Kynoar;Or, sealing coat be glass fibre non-woven, synthetic fibers without Spin cloth or ceramic fiber paper;Or, the material of sealing coat adopts the nonconducting polymeric matrix of electronics, liquid organic plasticizers The gel polymer electrolyte composite of composition is combined with three part of lithium salts.
6. integration downflow type lithium flow battery reactor as claimed in claim 1, it is characterised in that:The porous anode collection Fluid layer and porous negative pole currect collecting layer be lithium ion and electronics can freely through ion/electronics hybrid conductive layer, its thickness is 10 μm~1000 μm, through hole porosity is 10%~85%, 0.01 μm~500 μm of pore diameter range;
The porous anode current collector layer is the porous mixture of conductive filler and binding agent, wherein, conductive filler be titanium valve, aluminium powder, Argentum powder, rich lithium silica flour, lithium alloys powder metalloid alloy conductive particle, or one or more in material with carbon element containing lithium, lead The mass fraction of electric filler is not less than 70%;Or, the porous anode current collector layer is the metal conducting layer with loose structure, Metal conducting layer is that the metal wire knitted of tinsel or surface with conductive carbon material coating is formed, and mesh is square, rhombus, length It is square etc.;Or, the metal conducting layer is the porous foam metal layer with loose structure, or is expanded metal or gold Category paper tinsel Jing mechanical stampings or chemical attack are formed, and the material of metal conducting layer is aluminum, alloy aluminum, rustless steel, silver, stannum or titanium, Preferably aluminum;Or, the porous anode current collector layer be electric conduction of carbon fiber cloth, tinsel and organic fiber silk hybrid conductive cloth, Surface-coated conductive carbon material coating is coated with the porous organic material of metallic film, and the porous organic material includes natural cotton Fiber crops, terylene, aramid fiber, nylon, polypropylene, polyethylene or politef;Or, the porous anode current collector layer is addition Have a polyelectrolyte floor of above-mentioned conductive filler, the polyelectrolyte floor be polymeric matrix, liquid organic plasticizers and Three part of lithium salts is combined the gel polymer electrolyte composite of composition;Or, the porous anode current collector layer is above-mentioned several Any Composite Set fluid layer constituted by two or more in current collector layer;
The porous negative pole currect collecting layer is conductive filler and binding agent porous mixture, wherein, conductive filler be titanium valve, copper powder, Argentum powder, rich lithium silica flour, lithium alloys powder metalloid alloy conductive particle, or carbon black, CNT, carbon fiber, graphite One or more in alkene, material with carbon element containing lithium, the mass fraction of conductive filler are not less than 70%;Or, the porous negative pole collection Fluid layer is the metal conducting layer with loose structure, and metal conducting layer is the metal of tinsel or surface with conductive carbon material coating Silk braiding is formed, and mesh is square, rhombus, rectangle etc.;Or, the metal conducting layer is the porous with loose structure Foam metal layer, or be that expanded metal or the mechanical stamping of metal forming Jing or chemical attack are formed, the material of metal conducting layer is Rustless steel, nickel, titanium, silver, stannum, tin-coated copper, nickel-clad copper, silver-plated copper, preferably nickel-clad copper;Or, the porous negative pole Current collector layer is electric conduction of carbon fiber cloth, tinsel and organic fiber silk hybrid conductive cloth, surface-coated conductive carbon material coating or plating Have a porous organic material of metallic film, the porous organic material include natural linen-cotton, terylene, aramid fiber, nylon, polypropylene, Polyethylene or politef;Or, the porous negative pole currect collecting layer is the polyelectrolyte floor for being added with above-mentioned conductive filler, The polyelectrolyte floor is the gelatin polymer electricity that polymeric matrix, liquid organic plasticizers and three part of lithium salts are combined composition Solution composite material;Or, the porous negative pole currect collecting layer by above-mentioned several current collector layers in any two or more constitute Composite Set fluid layer.
7. integration downflow type lithium flow battery reactor as claimed in claim 1, it is characterised in that:In the porous anode Current collector layer and/or negative pole currect collecting layer surface are provided with electrode layer, and wherein electrode layer is electrode active material, conductive agent and/or binding agent Mixture is fixed on porous afflux by the mode such as the tape casting, infusion process or showering, thermal spraying, brushing or bonding, two-sided roll-in Both sides of layer to be dried drying prepared;Or, by the tape casting, showering, thermal spraying, brushing, bonding or one side roll-in etc. Mode is fixed on the opposite side that porous current collector layer contacted with sealing coat and is dried drying and is obtained;Mixture group by mass percentage Become electrode active material:Conductive agent:Binding agent=40~95%:1~30%:0~20%.
8. integration downflow type lithium flow battery reactor as claimed in claim 1, it is characterised in that:The lithium flow battery Reactor includes:Flow distribution plate and cylinder manifold, wherein, flow distribution plate is located at the face A sides of battery frame and is in close contact with face A and fixed, Cylinder manifold is located at the face A of battery framework1Side and with face A1It is in close contact and fixes.
9. flow distribution plate as claimed in claim 8 and cylinder manifold, it is characterised in that:The flow distribution plate is respectively provided on two sides with along edge Positive pole sprue and negative pole sprue, while according to the positive pole flow path groove and position and the quantity of negative pole flow path groove, in flow distribution plate Upper one-to-one corresponding arranges positive pole sub-runner and negative pole sub-runner, and sub-runner is respectively provided with positive pole tap hole and negative pole tap hole, described Positive pole sprue is communicated with positive pole sub-runner, and the negative pole sprue is communicated with negative pole sub-runner, positive pole sprue, positive pole shunting Road is not communicated with negative pole sprue, negative pole sub-runner;The positive pole sprue is connected with positive pole inlet, negative pole sprue with it is negative Pole inlet is connected;
The cylinder manifold structure is identical with manifold structure, and positive pole sprue is connected with positive pole liquid outlet, negative pole sprue and negative pole Liquid outlet is connected.
10. flow distribution plate as claimed in claim 8 and cylinder manifold, it is characterised in that:The positive pole flow distribution plate, positive pole cylinder manifold, Negative pole flow distribution plate and negative pole conflux panel material for one or more in polypropylene, polyethylene, politef.
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CN109286052A (en) * 2017-07-20 2019-01-29 北京好风光储能技术有限公司 A kind of multichannel communication type lithium flow battery reactor
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CN109286052A (en) * 2017-07-20 2019-01-29 北京好风光储能技术有限公司 A kind of multichannel communication type lithium flow battery reactor
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