CN1233861A - Cell for metal-air battery - Google Patents
Cell for metal-air battery Download PDFInfo
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- CN1233861A CN1233861A CN 98107340 CN98107340A CN1233861A CN 1233861 A CN1233861 A CN 1233861A CN 98107340 CN98107340 CN 98107340 CN 98107340 A CN98107340 A CN 98107340A CN 1233861 A CN1233861 A CN 1233861A
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Abstract
The invention provides a modular zinc air cell use in an electrochemical zinc-air multi-cell battery, each cell being of the type provided with a housing having, two outer major surfaces, and two spaced-apart inner walls, the inner walls defining a first inner chamber for containing therein a zinc electrode, and in conjunction with the outer major surfaces defining two outer chambers for receiving reaction air,two generally planar, gas-permeable, but liquid-impermeable air electrodes, each of the electrodes being installed in a window-like opening provided in each of the inner walls, an electrolyte in content with the zinc electrode and the air electrodes, and means for directing a flow of the reaction air into a first inlet provided in a first outer side surface of the housing through both of the outer chambers substnatially in a uniform flow distribution across the outer face of both of the air electrodes, and out of a second outlet provided in an opposite outer side surface of the housing.
Description
The present invention relates to a kind of modular battery, be used for a kind of many battery metals-air cell group system, in more detail, be used for a kind of system that uses at motor vehicle; And relate to more a kind of cool metal-air cell group that described batteries wherein are housed.
In No. the 94307391.6th, the european patent application of announcing with publication No. 0673076 in September 20 nineteen ninety-five, describe and apply for a kind of modular battery that is used for many battery metals-air cell group system, it comprises a more flat battery case with two first type surfaces, and the negative electrode of a pair of air electrode form, that relatively settle, spaced apart, air permeable and impermeable liquid is housed.Limit a space between this target, this space is open to the top edge of described battery case, then seals in the lateral edge and the bottom surface of described battery case; This space is configured to hold an anode of described battery pack.Sizable part of the first type surface of described shell is cut away, to expose the major part of described air electrode.It is characterized in that described two first type surfaces partly slot with a kind of like this mode,, form a air space with air inlet and outlet so that combine with the outer surface of the same fluting of a main wall of an adjacent cell shell; The exposed portions serve that also is described air electrode is to support and strengthen with the rib be made up of a plurality of fillets at least, these fillets limit some paths, be used to guide air, make through flowing to described outlet from the described part of described air intlet by described air electrode.
Write the spirit of described published application and the state of the art that wherein reflects at this, for reference.
According to the design of the basic module described in the described patent, prepare and tested the battery pack that is used for motor vehicle, these battery pack have obtained some great achievements: reach 400km with the speed drive motor vehicle up to 100kmh, and need not the storage battery group.
All have the battery pack of electricity all to produce heat during operation, one of them thermal source is the chemical reaction that takes place in all batteries, and second thermal source is that the electric current that resists the Ohmic resistance of battery pack own flows.In most of battery pack, above-mentioned heat mainly dissipates naturally by convection current.Yet the battery pack that is used for driving motor vehicle is intended to supply high power from a compact battery group bag, and if do not take the cooling provision that adds, high temperature may occur and raise.Consider to be designed to road vehicle to allow under and to work, just make this problem more serious up to 45-50 ℃ ambient temperature; Under these conditions, the heat that is produced may make battery pack temperature rise to a level that causes that battery pack is damaged.
Though high working temperature not necessarily impairs battery performance, some reason explanations are arranged: it is correct that certain cooling device is provided in this battery pack.At first, in the battery pack of natural cooling, the working temperature of inboard battery is far above the working temperature of peripheral battery in the battery pack, thereby causes between all batteries operational differences being arranged.The second, utilize the heat that takes out from battery pack to go to heat between automotive occupant when needed, this is usually favourable.With the 3rd, must prevent the performance premature deterioration of being heated and causing owing to solid in the battery pack and fluent material.
At United States Patent (USP) 754,969; 3,767,468; 4,007,315; 4,463,064; 4,578,324; With 5,212, in 024, the cooling system that some are used to have electric battery pack is described.These specifications disclose various in battery pack the system of circulating air and so on refrigerating gas or water and so on cooling liquid, be used for removing heat from battery pack.
At United States Patent (USP) 3,290, in 176 and 5,093,213, the cooling system that some are used for electrolyte is described.Though said system has some advantage, especially have more advantage aspect the concentration difference realizing that electrolyte mixes to even up, these systems need pumping installations, and more complicated and heavy than using direct air cooled system.Surprising is, is about each battery cell of 24cm * 24cm for the size that for example is applicable to road vehicle engine battery group, and the electrolyte cooling system is only got rid of about 40 watts heat from it.
For above-mentioned battery cell size, be used for making the system that cooling air directly flows through the metal collector arch can only keep about 20 watts removal capacity, it probably has only 25% of actual road vehicle engine battery group desired volume.Might fully improve the flowing velocity of the reaction air of ingress of air electrode by using a big fan, to get rid of excessive heat.This device is well suited for short application use, for example is used for the battery pack that working life has only the torpedo engine of a few minutes.Yet, substantially exceed the required speed of supply reaction oxygen if flow through the speed air flow of air electrode, finally can make electrolyte drying, thereby make battery produce unacceptable power loss from air electrode.
Because contain about 0.0314% carbon dioxide by volume in the air, known this gas can worsen the efficient operation of metal-air battery, and this also can hinder the flow velocity that improves fully as the reaction air of coolant.Therefore, the inventor has proposed a kind of suitable gas cleaner that uses with battery pack, is described in the european patent application 95301398.4, and its publication No. is 0677883.Be used to get rid of CO
2Gas cleaner need use a kind of CO usually
2Absorbing material, particulate alkali metal hydroxide and be adsorbed in aqueous alkali metal hydroxide on the porous carrier for example.No matter use which kind of absorbing material, absorbent has chemical depletion after long-term the use, needs replacing or chemistry to replenish.Only the air capacity that contains the required oxygen of enough cell reactions is handled with gas cleaner, can be avoided the too early absorbent that exhausts.Yet, have found that battery operated required air capacity is not enough to realize high cooling rate.
At United States Patent (USP) 5,447, in 805, also describe and apply for being used for the cooling system of battery pack, the cooling system of application in No. the 94307391.6th, european patent application for example, this patent relates to a kind of modular battery that is used for many battery metals-air cell group system.This battery comprises a more flat battery case with two first type surfaces, and a pair of air electrode form is housed, the negative electrode of that relatively settle, spaced apart, air permeable and impermeable liquid.Limit a space between this target, this space is open to the top edge of described battery case, then seals in the lateral edge and the bottom surface of described battery case; This space is configured to hold the anode and the electrolyte of described battery pack.Sizable part of the first type surface of described shell is cut away, to expose the major part of described air electrode.It is characterized in that described two first type surfaces partly slot with a kind of like this mode,, form a air space with air inlet and outlet so that combine with the outer surface of the same fluting of a main wall of an adjacent cell shell; The exposed portions serve that also is described air electrode is to support and strengthen with the rib be made up of a plurality of fillets at least, these fillets limit some paths, be used to guide air, make it flow to described outlet from the described part of described air intlet by described air electrode.Its feature is that also the top of at least one first type surface of described shell is equipped with a fluid flowing passage with an import and an outlet, these import and export are contained in the wall of subsurface of described shell, this passage is used to guide the cooling fluid that enters described import to pass the upper area of described battery, by the inwall of described housing parts, carry out heat exchange with the electrolyte on the top that is contained in described open space.
In European patent 0744784, describe and apply for a kind of electrochemical zinc air multi-unit battery group, each element cell all belongs to following pattern: it is equipped with a shell, this shell has a base and two first type surfaces and two subsurfaces, and they limit an interior space that is used for holding therein a zinc electrode; Be equipped with at least one common flat shape, permeable gas but the air electrode of impermeable liquid, each described at least one air electrode all is loaded in the window opening, and this opening is provided at least one first type surface; The electrolyte of described zinc electrode of contact and described air electrode is housed; Be used to guide the reaction air to flow through the device of the outer surface of two adjacent butt joint air electrodes from gas cleaner with being equipped with.Described battery pack also has the mobile guiding device of cooling air, and this device comprises a pair of thin plate spaced apart that is loaded between the adjacent cell, and each thin plate all has the size that is similar to described first type surface; And have for force cooling air flow through described thin plate between and the device that provides, the outer surface of described thin plate is arranged to contact and cools off described reaction air.
The modular battery that No. the 94307391.6th, european patent application comprises the battery case of a separation, and wherein two shells are identical to split, and combines at battery assembly process and a seam that forms along battery circumferential; This periphery is exactly all jointing edges, comprises its top margin and base.
Yet two shells weld side by side to this periphery of split, find to have some leakage problem.
In addition, make the reaction air flow through the devices of outer surface of two butt joint air electrodes, be to the needs preparation and use the shells of a large amount of batteries that purify the reaction air open.
In addition, the making of described battery, comprise aim at two symmetries to minute battery so that gummed mechanically is difficult.
Another problem that runs into is that the electrical interconnection lines between the current-collector of adjacent cell is exposed, damages easily and short circuit.
According to the present invention, a kind of modular battery that is used for electrochemical zinc air multi-unit battery group is provided now, each battery all belongs to following pattern: it is equipped with a shell, this shell has two outer first type surfaces and two isolated inwalls, one of described inner wall limit is equipped with first inner chamber of a zinc electrode therein, and limits two exocoels that are used to receive the reaction air with described outer first type surface; Be equipped with two common flat shapes, permeable gas but the air electrode of impermeable liquid, each described electrode is loaded in the window-like opening, provides this opening in each described inwall; The electrolyte of described zinc electrode of contact and described air electrode is housed; With the device that is used to guide described reaction air flows is housed, make first import that this air flows into to be provided in first outer surface of described shell, by two described exocoels, basically flow through the outer surface of two described air electrodes in even flow distribution mode, and flow out from one second outlet that a relative outer surface of described shell, provides.
In preferred embodiments more of the present invention, modular battery is by some symmetrical split cells piecemeal to be formed, wherein first described inwall is equipped with a frame-like opening, its big or small available tight friction fit mode receives and holds one second described inwall, at the bottom of one of described first inwall and opposite flank forms the base and the side of described shell respectively, and the top of described first inwall constitutes the seamless top of assembling back battery.
In more particularly preferred embodiment of the present invention, each described inwall all has a peripheral groove, and its big I is accepted one of described two outer first type surfaces; With a fenestra, its big I is accepted one of described two air electrodes.Each described groove and each described opening all are used for settling a described electrode and a described surface, and can form the seam of an impermeable air between described outer surface and described peripheral groove.
Described battery preferably is equipped with an independent import and independent outlet that is used to react air, and be used to make described reaction air stream to flow through the described device of the described outer surface of two described air electrodes basically in even flow distribution mode, preferably include a series of substantially horizontal, they prop up in the described window-like opening that is held in the described inwall.Form some at interval between described all of the upper and lower wall that limits all horizontal pathways, described path is guided the described reaction air that receives from described independent import into described independent outlet.
Can understand: with the design of being expected originally by european patent application No.94307391.6 and completely different with this patent that is designed to the basis, modular battery of the present invention is self-contained, has many than the good advantage of battery before described.More precisely, in aforementioned battery design and battery pack based on this, the reaction air flows through between two adjacent cell from a common manifold, if sew in arbitrary battery, then electrolyte all can flow into described common manifold.
In addition, though the part of supporting that air electrode is subjected to settling on its outer surface and ribs protection still is being damaged when battery pack is extracted a complete battery out easily for replacing.
Completely different therewith, the present invention provides a kind of self-contained battery first, wherein air electrode is loaded in the inwall of described double-walled battery, and the circulation of reaction air in each battery is to carry out in a reaction air chamber that is formed by described double-walled, promptly, be between each surface of adjacent interior and outer wall, rather than between adjacent battery, carry out.
In the present invention, preferably by the battery pack that described battery is housed being installed the mobile guiding device of cooling air, carry out the cooling of each battery, described device is used to make the outer surface of cooling air along the first type surface of two butt joint adjacent cell, flows between two batteries that are adjacent to settle; Described all surfaces are arranged to respectively, contact and cool off described reaction air in each exocoel that is the boundary with described each surface.
Like this, of the present invention one further preferred aspect, a kind of electrochemical zinc air multi-unit battery group is provided, each element cell all belongs to such one type: it is equipped with a shell, this shell has two outer first type surfaces and two inwalls spaced apart, one of described inner wall limit is used for settling therein first inner chamber of a zinc electrode, and limits two exocoels that are used to receive the reaction air together with described outer first type surface; Air electrode two common flat shapes, permeable gas but impermeable liquid is housed, and each described electrode all is installed in the window-like opening, provides this opening in each described inwall; The electrolyte of described zinc electrode of contact and described air electrode is housed; Be used to guide the device of described reaction air flows, first import that provides on first outer surface of described shell is provided, basically flow through the outer surface of two described air electrodes in even flow distribution mode by two described exocoels, and flow out from one second outlet that a relative outer surface of described shell, provides; With the mobile guiding device of cooling air, be used to make the outer surface of cooling air along the first type surface of two butt joint adjacent cell, between two batteries that are adjacent to settle, flow, described surface is arranged to respectively, contact and cool off described reaction air in each exocoel of delimiting with described each surface.
In the preferred embodiment in this aspect of the invention, described air flows guiding device comprises fan assembly.
In another preferred embodiment in this aspect of the invention, the mobile guiding device of described cooling air comprises the exhaust apparatus that is loaded in the described shell, is used to guide the natural air flow between the described battery.
Will appreciate that the battery pack that is formed by element cell according to the present invention has the device that is used for two separate air flows, heat is from reacting air transfer to cooling air.Yet two air stream can be from an independent air fan, perhaps preferably from source independently, so that allow reaction air behind the pure qi (oxygen) that utilizes negligible amounts.So that operate electric group of group, use the cooling air of larger amt from the reaction air, to take out undesired heat with liberal quantity supply reaction air simultaneously.
In more particularly preferred embodiment of the present invention, the outer first type surface of described shell is made of plastic material.Merit attention, plastics are not regarded as candidate suitable in the heat exchange applications usually, because the thermal conductivity of metal is bigger 1,000 times than typical solid plastics thermal conductivity approximately.Yet this consideration is based on the actual view of too simplifying that a situation arises when shifting heat by a wall by conduction.There is one deck to contact the respective media film of above-mentioned wall, such as the air film among the present invention, the area of heating surface of topped wall and cooling surface.The film coefficient value depends on many factors, and thermal conductivity, viscosity, density and specific heat etc. are wherein arranged.Accurate calculating is complicated, but in general, is not end stream if flow, and heat exchange walls is not thick, and then the hot-fluid resistance of each independent film is usually than the big manyfold of resistance of the solid material that comprises wall; Naturally have two above-mentioned air films, and be a very poor heat conductor with still air film that wall contacts closely.
In the present invention, above-mentioned consideration is very actual; The wall thickness of outer first type surface described herein is very little, is approximately 1 millimeter, and because the restriction fan power consumption estimates that air flows belongs to laminar flow.Final result is, when considering entire thermal resistance, and during just single thermal conductivity of considering wall material, a thin-walled of being made by solid plastic is mediumly inferior to metal in this application.
Plastics have some compensatory attractive character in the application of the outer surface of shell of the present invention, resistance height for example, in light weight, cost of manufacture is low, and the chemical corrosion that is caused by alkaline medium commonly used in the described types of battery sets is had outstanding resistance.For example, the copper of same thickness and polypropylene are made comparisons, plastics have 9.9 times advantage on weight.The battery pack that this advantage is used for the road vehicle engine is considerable, and wherein light weight is to realize the key request of acceptable vehicle performance.
In more particularly preferred embodiment of the present invention, the common flat conducting matrix grain member that is surrounded by the reactive metal parts forms described zinc electrode, the porous zinc particle that comprises is made the static bed of a paste that soaks into electrolyte, and the described inner space of described shell is communicated in an opening with respect to described base, by the replaceable described zinc electrode of this opening, so that carry out the machinery replacing with the metal electrode of a new charging.
At United States Patent (USP) 5,354, in 625, describe and apply for a kind of metal-air power supply and air-manager system and a kind of metal-air battery that uses therein.Yet, described patent proposes a kind of zinc-air battery that an air electrode negative electrode is arranged at its top and a solid state battery box is arranged in its bottom, wherein react air and be drawn towards a cathode pressure ventilating system on the battery top, cooling air then is drawn towards a cooling air forced air-ventilating system at battery bottom.Like this, very clear, this patent is not lectured or is proposed to use cooling air to remove cooling reaction air, and just cooling air is guided into the different surfaces of battery,, does not have air cathode that is.
As what in the 6th hurdle 6-13 of described patent is capable, spell out: " in addition; owing in these parts, form some frame dish registers that change of battery; so battery case and dish form one adjacent to the cathode pressure ventilating system in each chamber of each air cathode; and cooling air forced air-ventilating system that separates with this air electrode; can make the reactant air guide air cathode into whereby and can make cooling air guide the part of each battery case that separates with each air cathode into ".
In conjunction with some preferred embodiment the present invention is described referring now to following key diagram, so that can understand the present invention more fully.
Point out emphatically now specially in detail with reference to all figure, shown in details be exemplary, its purpose is that preferred embodiments more of the present invention are discussed on illustrative ground; And the purpose of introducing is principle of the present invention and notion aspect provided thinks the most useful and comprehensible description.In this respect, do not attempt to describe CONSTRUCTED SPECIFICATION of the present invention in more detail than basic understanding is required for the present invention, the description of being done is to make the professional and technical personnel to understand in conjunction with the accompanying drawings, can how to implement forms more of the present invention in practice.
In the accompanying drawings:
Fig. 1 is the non-details segment of the perspective figure of the preferred embodiment of a battery pack that a plurality of modular batteries are housed according to the present invention;
Fig. 2 is the perspective segment figure of battery after the assembling, and the electrolyte of being adorned is described;
Fig. 3 is the exploded view of a battery shown in Figure 2;
Fig. 3 a is a perspective view of going up the angle of a battery shown in Figure 2;
Fig. 3 b is a perspective view of going up the angle of a battery shown in Figure 2, from wherein removing closure elements;
Fig. 3 c is a side cross-sectional view of three complete batteries;
Fig. 4 is the schematic diagram of an embodiment, and a preferred embodiment of air flows is described;
Fig. 5 is the plane graph of an embodiment, and the battery pack that wherein is used for moving vehicle is equipped with the ventilating system of collecting cooling air;
Fig. 6 is a battery detail view, and two inwalls spaced apart when being assembled into a sealing unit are described;
Fig. 7 is the perspective view of an embodiment, is equipped with to be used to make reaction air stream to flow through the device of air electrode outer surface in even flow distribution mode.
Electrochemical zinc-air multi-unit battery group 10 shown in Fig. 1, such battery pack are used for multiple discharge and recharge circulation.Battery pack 10 comprises many element cells 12, and 12a is applicable to vehicle motor.Each of the interior a series of element cells of battery pack supplied with the reaction air by a manifold 13.
With reference now to Fig. 2 and 3,, a battery cell 12 that is loaded in the battery pack 10 is described in more detail.
In this embodiment, can be more clearly visible with reference to Fig. 3, first described inwall 18L settles a frame-like opening 19, its big I is by the reception of tight friction fit and hold one second described inwall 18R, at the bottom of one of the described first inwall 18L 25 and opposite side surfaces 40 and 44 form the end and the side of described shell 14 respectively, and the top 21 of described first inwall constitutes the seamless top of institutes' assembled battery.
As in conjunction with Fig. 3 a, shown in Figure 3 shown in 3b and the 3c, inwall 18L is equipped with the battery contact shell 3 of an integral body, and shell 3 comprises a spring clip contact 4, and described spring clip contact 4 is electrically connected on the contact 6 of air electrode by a metallic conductor 5.Contact 4 is suitable for receiving the bead 7 of extending from the anode collector member 23 of adjacent cell, and its reason is adjacent cell 12,12 ' and 12 " contact shell 3,3 ' and 3 " have the stairstepping suit and dispose, shown in Fig. 3 C.
With cover 8 closures 3, protect spring clip 4 and 7 unlikely exposing of bead whereby, the best plastic production of described shell 3 and described cover by nonconducting anti-KOH corrosion.
It will be appreciated that this device allows the internal electric interconnection between the adjacent cell, rather than outside the connection.The outside connection is by at United States Patent (USP) 5,447, and the terminal clip of seeing among Fig. 1 of 805 48 provides.
The permeable gas of two common flat shapes but the air electrode 30 of impermeable liquid are placed, and settle one in every side of zinc electrode 22.Each air electrode 30 is provided in the window-like opening 32 that provides in each inwall 18.
Each inwall 18 is all settled a peripheral groove, and its big I is accepted one of two outer first type surfaces 16 and a window 32 that is used to accept one of two air electrodes 30.Groove 31 is used to settle outer surface 16 and 16 ', as shown in Figure 3; And be used for outer surface 16 and 16 ' and peripheral groove between form the seam of an impermeable air easily.Described seam can enough epoxy radicals glue or is formed with ultra-sonic welded.In other words, main outer surface 16 and 16 ' can be made for an independent full unit with inwall 18.
A kind of electrolyte 34 is housed, potassium hydroxide for example, its contact zinc electrode 22 and air electrode 30 in first inner chamber 20.
For battery operated required oxygen is provided, be provided for guiding and react the device that air 26 flows, first import 38 that provides in one first outer surface 40 of air 26 comfortable battery cases 14 is provided.Divide reactant ligand air stream with by two exocoels 24, flow through the outer surface of two air electrodes 30 basically in even flow distribution mode.Reaction air 26, the oxygen that deduction is consumed is discharged by second outlet 42 that a relative outer surface 44 at battery case 14 provides.
The reaction air 26 that flows through battery 12 is significantly heated owing to contact hot-air electrode 30 in battery 12.
As mentioned above, in the present invention, the reaction air 26 that available cooling air 48 (as shown in Figure 1) cooling is heated, it flows along the outer surface 16 and 16 ' of each battery, and produces cooling by the heat transmission of described outer surface; Described reaction air and described cooling air preferably flow with the direction of mutual adverse current.
In an illustrated embodiment, the cooling air guiding device that flows comprises a plurality of outside ledges 46 that place at least one outer surface, at present embodiment only on the outer surface 16 ' of back.Ledge 46 serves as the sept between the adjacent cell, and makes cooling air 48 flow through space 50 between two batteries that are adjacent to settle 12 and 12a, as shown in Figure 1.Therefore, though obviously can all provide above-mentioned ledge 46 on two outer surfaces 16 and 16 ', it is enough only on a described butt joint outer surface ledge 46 being set.
Cooling air 48 does not enter battery 12, but contacts the outer first type surface 16 and 16 ' of two butt joints of two butt joint adjacent cell 12 and 12a.Surface 16 and 16 ' is arranged to contact and cools off reaction air 26 in each exocoel 24.Like this, even adopt the flowing velocity of high cooling air 48, also therefore do not produce the carbon dioxide pollution of battery 12.Like this, the battery heat can partly directly be got rid of by reaction air 26, and partly gets rid of heat by cooling air 48 from battery outer surface 16 and 16 '.In a battery pack with 24cm square cell, from each battery 12, get rid of 50 watts of heats at least.
Can understand,, under cooling air can flow in situation between the adjacent cell, also can be used for motorcycle and other vehicle, because the motion of vehicle makes air flow along battery pack with between all batteries according to battery pack of the present invention.Wherein, above-mentioned sept or ledge 46 are guiding cooling air flows required unique devices between adjacent cell, and in other undocumented embodiment, described device can comprise path, ventilation hole, fan and their combination etc.
Preferably, also provide some inside ledges 47 on two described outer surfaces 16 and 16 ', it can further guarantee to keep the space in the outer reaction chamber 24, so that the flowing of described reaction air, as previously mentioned.
In Fig. 4, can see a preferred embodiment of air flows.The mobile guiding device of cooling air comprises that fan assembly 52 is favourable.
Illustrated already that battery 12 was exposed to two independently in the air stream, makes heat be delivered to cooling air 48 from reaction air 26.
Two air streams in the present embodiment all are derived from an independent air fan 52.With liberal quantity supply reaction air 26, make battery 12 work; Cooling air 48 with bigger quantity goes to extract undesired heat from reaction air 26 simultaneously.
The big at least twice of flow of the flow-rate ratio reaction air 26 of cooling air 48, this is favourable.
Preferably, gas cleaner 54 is arranged to: before described reaction air 26 enters battery 12, remove carbon dioxide from reaction air 26.Gas cleaner 54 is equipped with a kind of CO
2Absorbing material, for example particulate alkali metal hydroxide perhaps is adsorbed in the aqueous alkali metal hydroxide on the porous carrier.Only reaction air 26 is used gas cleaner 54, can avoid material 56 to exhaust too early.The cooling air 48 of bigger quantity flows through the outer surface 16 of battery 12, does not flow through gas cleaner 54.The width in space 50 is shown large, so that explanation.
Fig. 5 describes an electrochemical zinc-air multi-unit battery group 60, and it is similar to battery pack shown in Figure 1.The battery pack 60 that is used for powered vehicle 62 is equipped with ventilating opening 64, is used to collect cooling air 48.Battery pack 60 is oriented to: make the first type surface of outer surface 16 and so on of battery case 14 consistent with the direction that vehicle 62 moves.The guide of flow device of cooling air 48 comprises the ventilation unit 66 that is loaded in the battery case 14, is used for guiding between battery natural air flow.Be used to provide the small fan 68 of reaction air 26 to choose wantonly.Do not need in the present embodiment in front with reference to figure 4 described big fans 52, thus save weight, cost and parasitic power consumption.
Fig. 6 illustrates the details of a battery: two inwall 18L that are spaced and 18R form shell 14 jointly.The left inwall 18L of a coupling and a right inwall 18R are arranged to be connected to each other.Left side inwall 18L has one and goes up path 70, and it is formed at the top 72 of described left inwall 18L.The thin tongue piece 74 of right inwall 18R is shown, and it is engaged in path 70.Left side inwall 18L has a peripheral frame shape opening 19, and it extends along the both sides and the end.The size of right inwall 18R is adapted to frame-like opening 19, and flushes with the apical margin 76 of frame-like opening 19 when assembling.The inwall 18L and the 18R of interconnection place between air electrode, zinc electrode and the electrolyte, as with reference to shown in figure 2 and 3, but for convenience of description, omit these parts and contact shell 2 at this.
Fig. 7 illustrates the details of battery 88, and battery 88 is equipped with to be used to guide and reacts the device that air 26 flows, and makes it flow through the outer surface of two air electrodes 30 shown in Figure 3 basically in even flow distribution mode.
Described device comprises a series of substantially horizontal 90, and they prop up and are held in the window-like opening 92 of inwall 94.Some are used to guide the upper and lower wall of the horizontal pathways 96 of reacting air 26 space boundary that forms between all 90, and reaction air 26 receives from first import 38.Reaction air 26 is drawn towards second outlet 42 after passing through between the bar 90.
In the preferred embodiment that illustrates, a plurality of webs 98 extend in vertical direction, interconnection and reinforcement fillet 90.Web 98 also provides supporting to the low air electrode 30 of mechanical strength.Web 98 another advantages are to set up the air flows of bigger turbulivity in horizontal pathways 96, thereby improve battery efficiency and battery cooling.
Those skilled in the art is obviously known, the invention is not restricted to the details of top illustrative embodiment, and the present invention can implement with other concrete form, and does not break away from spirit of the present invention or essential characteristic.Therefore thinking that these embodiment that introduced are illustrative in all respects, is not restrictive; Scope of the present invention pointed out by appending claims, points out and can't help top description; Therefore, all be included in wherein with the meaning of claims equivalence and the whole changes in the scope.
Claims (18)
1. modular zinc-air battery that is used for battery metal more than-air cell group comprises:
A shell, it has two outer first type surfaces and two inwalls that are spaced, and one of described inner wall limit is used for holding therein first inner chamber of a zinc electrode, and limits two exocoels that are used to receive the reaction air with described all outer first type surfaces;
Two general closed planar, permeable gas but the air electrode of impermeable liquid, each described electrode all is contained in the window-like opening that provides in each described inwall;
One electrolyte, it contacts described zinc electrode and described air electrode; And
Be used to guide the device of described reaction air flows, the reaction air is provided in first import that provides in first outer surface of described shell for it, basically flow through the outer surface of two described air electrodes in even flow distribution mode by two described exocoels, and second outlet that provides flows out from a relative outer surface of described shell.
2. according to the modular battery of claim 1, wherein, first described inwall is equipped with the frame-like opening that its big or small available tight friction fit mode received and held second described inwall, the bottom surface of described first inwall and opposite flank form the bottom surface and the side of described shell respectively, and the top of described first inwall constitutes a seamless top of institute's assembled battery.
3. according to the modular battery of claim 1, wherein, described battery is equipped with an independent import and outlet separately that is used to react air.
4. according to the modular battery of claim 1, the described outer first type surface of wherein said battery case is made by a kind of plastic material.
5. according to the modular battery of claim 1, wherein be used to make the device that described reaction air stream flows through the described outer surface of two described air electrodes in even flow distribution mode basically to comprise, a series of at the internal support of window-like opening described in the described inwall substantially horizontal; The upper and lower wall of the space boundary horizontal pathways that forms between described, described path is guided the described reaction air that receives from described first import into described second outlet.
6. according to the modular battery of claim 5, also comprise a plurality of the extension in vertical side and interconnection and strengthen described thin bar; They also provide supporting to described air electrode, set up a kind of turbulent air simultaneously and flow in described horizontal pathways.
7. according to the modular battery of claim 1, wherein, each described inwall all is equipped with its size and is suitable for accepting peripheral groove of one of described two outer first type surfaces and the window-like opening that its size is suitable for accepting one of described two air electrodes; Each described groove and each described opening all are used to settle a described electrode and a described surface, and make the seam that forms an impermeable air between described outer surface and the described peripheral groove easily.
8. according to the modular battery of claim 1, wherein, described outer first type surface is connected in described inwall with ultrasonic bonding.
9. according to the modular battery of claim 1, a manifold is housed also, it is arranged to the reaction air is supplied with all sides of each battery.
10. according to the modular battery of claim 1, wherein, described outer surface comprises some 0.3 to 1.5mm thick plastic sheets, and its intensity is enough to protect described air electrode, makes it to avoid when battery loads and unloads physical damnification.
11. modular battery according to claim 1, wherein, first described inwall is equipped with an integral battery door contact shell, this shell contains a spring clip contact point, this contact point is electrically connected on the contact point of air electrode by a metallic conductor, and described spring clip contact point is applicable to some flanges that acceptance is extended from the anode collector member of an adjacent cell; Wherein said integral battery door contact shell has a stepped configuration, makes between the adjacent cell and can locate by suit, and the flange of the current-collector member of an adjacent cell can be inserted wherein.
12. according to the modular battery of claim 11, wherein, described integral battery door contact shell seals with a closure member.
13. according to the modular battery of claim 12, wherein, described integral battery door contact shell and described closure member all are to be made by the plastics of nonconducting anti-KOH corrosion.
14. electrochemical zinc-air multi-unit battery group, each element cell all belongs to such type, is equipped with:
A shell, it has two outer first type surfaces and two inwalls that are spaced, and one of described inner wall limit is used for holding therein first inner chamber of a zinc electrode, and limits two exocoels that are used to receive the reaction air together with described outer first type surface;
Two general closed planar shapes, permeable gas, but the air electrode of impermeable liquid, each described electrode all is loaded in the window-like opening that provides in each described inwall;
One electrolyte, it contacts described zinc electrode and described air electrode;
Be used to guide the device of described reaction air flows, it makes described air that first import that provides in first outer surface of described shell is provided, basically flow through the outer surface of two described air electrodes in even flow distribution mode by two described exocoels, and flow out from one second outlet that a relative outer surface of described shell, provides; And
The cooling air guiding device that flows, be used to make cooling air to flow between two batteries that are adjacent to settle along the outer surface of the first type surface of two butt joint adjacent cell, described surface is arranged to respectively: the described reaction air in each exocoel of being delimited by described each surface is contacted and cools off.
15. according to the electrochemical zinc-air multi-unit battery group of claim 14, wherein, the mobile guiding device of described cooling air comprises fan assembly.
16. according to the electrochemical zinc-air multi-unit battery group of claim 14, wherein, the ventilation unit that provides in the described shell is provided the mobile guiding device of described cooling air, is used to guide the natural air flow between the described battery.
17. according to the electrochemical zinc-air multi-unit battery group of claim 14, wherein, the big at least twice of the flow velocity of the described reaction air of the velocity ratio of described cooling air.
18. the electrochemical zinc-air multi-unit battery group according to claim 14 also comprises a gas cleaner, it is arranged to remove carbon dioxide from described reaction air before described reaction air enters described battery.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW087105593A TW364221B (en) | 1998-03-24 | 1998-04-14 | Cell for a metal-air battery |
| CN 98107340 CN1233861A (en) | 1998-04-24 | 1998-04-24 | Cell for metal-air battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98107340 CN1233861A (en) | 1998-04-24 | 1998-04-24 | Cell for metal-air battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1233861A true CN1233861A (en) | 1999-11-03 |
Family
ID=5219345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98107340 Pending CN1233861A (en) | 1998-03-24 | 1998-04-24 | Cell for metal-air battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1233861A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101449406B (en) * | 2006-05-17 | 2011-06-01 | 丰田自动车株式会社 | Battery pack and vehicle |
| CN102931362A (en) * | 2012-09-20 | 2013-02-13 | 北京九能京通新能源科技有限公司 | Air battery case and injection molding method thereof |
| CN103325291A (en) * | 2013-06-24 | 2013-09-25 | 台州非常新能源科技有限公司 | Demonstration device for metal-air batteries |
| CN104009270A (en) * | 2014-05-22 | 2014-08-27 | 浙江吉利控股集团有限公司 | Aluminum-air cell system |
| CN104145366A (en) * | 2012-02-22 | 2014-11-12 | 日产自动车株式会社 | Air cell |
| CN105810976A (en) * | 2016-04-29 | 2016-07-27 | 张家港讴德电池技术有限公司 | Easy-to-assemble unit fuel cell structure and fuel cell device |
| CN106025311A (en) * | 2015-03-30 | 2016-10-12 | 流体公司 | Water management system in electrochemical cells with vapor return comprising air electrodes |
| CN106356591A (en) * | 2015-07-14 | 2017-01-25 | 三星电子株式会社 | Metal air battery and operation method of the metal air battery |
| CN111293331A (en) * | 2018-12-07 | 2020-06-16 | 现代自动车株式会社 | Fuel cell with heating unit |
| CN111819710A (en) * | 2018-02-12 | 2020-10-23 | Hilabs公司 | Fluid battery, manufacturing method and application thereof |
| WO2021012306A1 (en) * | 2019-07-24 | 2021-01-28 | 超威电源有限公司 | Air battery pack |
| US11664547B2 (en) | 2016-07-22 | 2023-05-30 | Form Energy, Inc. | Moisture and carbon dioxide management system in electrochemical cells |
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1998
- 1998-04-24 CN CN 98107340 patent/CN1233861A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101449406B (en) * | 2006-05-17 | 2011-06-01 | 丰田自动车株式会社 | Battery pack and vehicle |
| CN104145366B (en) * | 2012-02-22 | 2017-12-22 | 日产自动车株式会社 | air cell |
| CN104145366A (en) * | 2012-02-22 | 2014-11-12 | 日产自动车株式会社 | Air cell |
| CN102931362A (en) * | 2012-09-20 | 2013-02-13 | 北京九能京通新能源科技有限公司 | Air battery case and injection molding method thereof |
| CN103325291A (en) * | 2013-06-24 | 2013-09-25 | 台州非常新能源科技有限公司 | Demonstration device for metal-air batteries |
| CN103325291B (en) * | 2013-06-24 | 2016-01-13 | 台州非常新能源科技有限公司 | The apparatus for demonstrating of metal-air battery |
| CN104009270A (en) * | 2014-05-22 | 2014-08-27 | 浙江吉利控股集团有限公司 | Aluminum-air cell system |
| CN106025311B (en) * | 2015-03-30 | 2021-06-25 | 南特能源公司 | Water management system in electrochemical cell with vapor return including air electrode |
| CN106025311A (en) * | 2015-03-30 | 2016-10-12 | 流体公司 | Water management system in electrochemical cells with vapor return comprising air electrodes |
| CN106356591A (en) * | 2015-07-14 | 2017-01-25 | 三星电子株式会社 | Metal air battery and operation method of the metal air battery |
| CN105810976B (en) * | 2016-04-29 | 2018-11-02 | 苏州讴德新能源发展有限公司 | A kind of easy-to-assemble monoreactant battery structure and fuel-cell device |
| CN105810976A (en) * | 2016-04-29 | 2016-07-27 | 张家港讴德电池技术有限公司 | Easy-to-assemble unit fuel cell structure and fuel cell device |
| US11664547B2 (en) | 2016-07-22 | 2023-05-30 | Form Energy, Inc. | Moisture and carbon dioxide management system in electrochemical cells |
| CN111819710A (en) * | 2018-02-12 | 2020-10-23 | Hilabs公司 | Fluid battery, manufacturing method and application thereof |
| CN111293331A (en) * | 2018-12-07 | 2020-06-16 | 现代自动车株式会社 | Fuel cell with heating unit |
| WO2021012306A1 (en) * | 2019-07-24 | 2021-01-28 | 超威电源有限公司 | Air battery pack |
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