Utility model content
The utility model is intended to overcome the defect that lithium-air battery in existing mold cannot realize easy connection in series-parallel and connection in series-parallel conversion, and the utility model provides a kind of easy-to-assemble lithium-air battery mould.
The utility model provides a kind of easy-to-assemble lithium-air battery mould, described lithium-air battery mould comprises the battery container of insulation, and the battery cap of the insulation can mated with battery container, described battery container is being provided with the first groove mated with lithium-air battery part dimension towards the side of battery cap, described battery container also has at least one pair of first duct arranged in described first groove bilateral symmetry vertically running through described battery container, described battery cap has protruding towards battery container and the top cover that can snap in described first groove is protruding, described battery cap also has at least one pair of second duct of the setting of the bilateral symmetry in described top cover projection vertically running through described battery cap, when battery cap and battery container are combined, described first duct is aimed at the second duct, described battery cap also has and described second hole link, and extend at least one pair of the 3rd duct symmetrically arranged of the bottom surface of described top cover projection.
In the utility model, lithium-air battery component combination mode can be, lithium sheet negative pole places barrier film, and on barrier film, drip appropriate electrolyte, air cathode pole piece is placed at the diaphragm adding electrolyte, and appropriate electrolyte is dripped on air cathode pole piece, place collector adding above the air cathode pole piece of electrolyte.Lithium-air battery parts are positioned over (lithium sheet is positioned on the conducting strip of bottom portion of groove) in the first groove, then are connected with external circuit by wire;
Lithium-air battery mould in the utility model, outlet, the entrance (the first duct and the combination of the second duct) of airflow field passage are one and run through (battery cap) end face of lithium-air battery mould and the vertical channel conducting of (battery container) bottom surface.Adopt such design, by the connection in series-parallel of lithium-air battery in convenient moulds.Specifically, in the utility model, mould is upper and lower stacking, and docks with the airflow field passage entry and exit (vertical channel) of upper and lower mould, forms the vertical channel shared that at least one pair of is long.So, block a hole of the vertical channel as shared air inlet in use, and oxygen another hole from the vertical channel of air inlet is imported, then can give the multiple series-parallel lithium-air battery oxygen supply in stack mold simultaneously, without the need to multiple source of oxygen, simplify structure during mould connection in series-parallel.In addition, because described first duct and the second duct are for being symmetrical arranged, therefore in mould, the connection in series-parallel of lithium-air battery is also very easily changed, and only can need be realized by the rotation of mould.
Preferably, the bottom surface of described lithium duct battery mould and end face are plane.
Preferably, also there is at least one power spring being arranged on the protruding central portion of described top cover.
The utility model, by the adjustment of spring force, regulates the compression degree of lithium-air battery parts.
Preferably, described top cover projection is provided with at least one second groove in the central portion, and described second groove is set to hold described power spring.
Preferably, described first recess sidewall has step.
Preferably, the shape of cross section of described first groove and/or top cover projection comprises square, circular, triangle, trapezoidal or fan-shaped.
Preferably, the sidewall of described battery container is provided with the negative wire be connected with negative plate, and described battery cap is provided with the positive wire be connected with described positive plate.
Preferably, described positive wire is connected with positive plate by described power spring.
Embodiment
Further illustrate the utility model below in conjunction with accompanying drawing and following execution mode, should be understood that accompanying drawing and following execution mode are only for illustration of the utility model, and unrestricted the utility model.
The purpose of this utility model can not share to solve existing lithium-air battery mold gases duct, and positive and negative lead wires connects complicated, and pole piece pressure is unadjustable, the uncontrollable technical problem of gas flowfield, provides a kind of easy-to-assemble lithium-air battery mould.
Described lithium-air battery mould comprises the battery container 1-1 of insulation, and the battery cap 1-2 of the insulation can mated with battery container 1-1, described battery container 1-1 is being provided with the first groove 1-5 mated with lithium-air battery part dimension towards the side of battery cap 1-2, described battery container 1-1 also has at least one pair of the first duct 1-7 arranged in described first groove bilateral symmetry vertically running through described battery container 1-1, described battery cap has the protruding 1-6 of the top cover that can snap in described first groove towards battery container projection, described battery cap 1-2 also has at least one pair of the second duct 1-7 ' arranged in the bilateral symmetry of the protruding 1-6 of described top cover vertically running through described battery cap 1-2, when battery cap 1-2 and battery container 1-1 is combined, described first duct 1-7 aims at the second duct 1-7 ', described battery cap also has and is communicated with described second duct 1-7 ', and extend at least one pair of the 3rd duct 1-9 symmetrically arranged of the bottom surface of the protruding 1-6 of described top cover.
Fig. 1-5 particularly illustrates the correlation circumstance of lithium-air battery mould in the utility model respectively.
Fig. 1 shows the structural representation of a lithium-air battery mould of the present utility model.
As can be seen from Figure 1, this mould includes battery container 1-1, battery cap 1-2, and battery cap 1-2, by the lug boss 1-6 on the first groove 1-5 on the housing of mutual coupling and top cover, realizes engaging at the first groove 1-5 1-10 place of topping bar.The sidewall of the first groove is step-like to be used for laying O type rubber ring, to reach air-tightness object.
In the cell housing, be provided with and extend to the wiring duct of hull outside at housing groove (the first groove) 1-5 of battery cap side and with housing groove 1-5 conducting, wherein, in this first groove 1-5, lithium-air battery parts can be placed.The assembling sequence of lithium-air battery parts can be: lithium sheet negative pole places barrier film, and on barrier film, drip appropriate electrolyte, air cathode pole piece is placed at the diaphragm adding electrolyte, and appropriate electrolyte is dripped on air cathode pole piece, place collector adding above the air cathode pole piece of electrolyte.Place conducting strip in the bottom of the first groove 1-5, then put into lithium-air battery parts, lithium sheet is connected with conducting strip, and conducting strip is connected with external circuit by the negative wire of wiring in duct again.
On battery cap, the second groove above the first groove and the wiring duct with the second groove conducting can be arranged on.This second groove can arrange and realize collector in lithium-air battery parts and stablize the device of connection, then by the positive wire that connect this device of wiring in duct, realizes the connection of lithium-air battery and external circuit.
Further, described in be arranged at the second groove to stablize with collector in lithium-air battery parts the device be connected can be metal spring 1-8, this metal spring is pressed on the surface of collector.By using the spring of different size, elastic force, the pressure be applied on lithium-air battery parts can be changed, changing the tightness between lithium-air battery parts.Metal spring 1-8 can arrange multiple, and the 3rd duct 1-9 can arrange (see Fig. 2) around metal spring 1-8.
Described positive wire 1-3 in top cover sidewall (insulation), the inner and mutual conducting of power spring 1-8 with top cover;
Described negative wire 1-4 is distributed in the sidewall of housing, with the mutual conducting of conducting strip in the first groove but be insulate with sidewall.
The shape of the cross section of the protruding 1-6 of described housing groove 1-5 and top cover can be square, circular, triangle, rhombus, trapezoidal or fan-shaped;
The middle part of described housing 1-1 is provided with groove 1-5; Described housing bottom surface is provided with symmetrical air inlet/outlet road 1-7;
The middle part of described top cover 1-2 is provided with protruding 1-6, and end face is provided with symmetrical air inlet/outlet road 1-7 '; The middle part of described protruding 1-6 is provided with power spring 1-8.
The airflow field passage of the first groove is provided with, for being anode pole piece oxygen supply in lithium-air battery parts in described lithium-air battery mould.At least one pair of vertical channel running through mould bottom surface and end face that first duct and the docking of the second duct are formed, as the outlet of airflow field passage and entrance, extends to the other parts of symmetrically arranged 3rd duct as airflow field passage of the bottom surface of described top cover projection with described second hole link.Wherein, the import and export of airflow field passage is one and runs through the end face of described lithium-air battery mould and the vertical channel (being formed by the first duct 1-7 and the 1-7 ' docking of the second duct) of bottom surface, and the end face of described lithium-air battery mould and bottom surface are plane, for the connection in series-parallel of lithium-air battery in this mould, it is convenient greatly to produce.
Specifically, as illustrated in figures 4-5, in the utility model, mould is upper and lower stacking, and docks with the airflow field passage entry and exit (vertical channel) of upper and lower mould, forms at least two long vertical channels shared.So, block a hole of the vertical channel as shared air inlet in use, and oxygen another hole from the vertical channel as shared air inlet is imported, then can give the multiple series-parallel lithium-air battery oxygen supply in stack mold simultaneously, without the need to multiple source of oxygen, simplify structure during mould connection in series-parallel;
In addition, owing to being symmetrical arranged as the vertical channel of airflow field channel outlet, entrance in mould, series-parallel conversion in mould between battery becomes very convenient, such as, be illustrated in figure 4 lithium-air battery group in parallel, only the lithium-air battery mould turnback on top can need be changed into the lithium-air battery group of the series connection shown in Fig. 5.
Described 3rd duct 1-9 can design as required, such as, can partly be arranged in top cover lug boss 1-6.The middle part of described top cover is provided with projection, and projection is provided with airflow field, and top cover is provided with symmetrical turnover gas the 3rd duct.
Fig. 2-3 respectively illustrates the vertical view of a lithium-air battery mould top cover and the vertical view of housing in the utility model.
As can be seen from Fig. 2-3, lithium-air battery mould in the utility model, except passing through snap-in structure (the first groove 1-5 1-6 protruding with top cover), on housing and top cover, be also provided with corresponding bolt hole 2-1,3-1, realize fixing further between housing and top cover by bolt.And when in this mould, lithium-air battery carries out connection in series-parallel by stacked on top, such bolt can be carried out fix: bolt hole housing and top cover being arranged the symmetry of coupling, when mould upper and lower stacking time, the bolt hole of each mould is corresponding, form the bolt hole shared, realize fixing between each mould by a stay bolt.
The material of housing 1-1 described in the utility model and top cover 1-2 is stainless steel, copper alloy, aluminium alloy, magnesium alloy, nickel alloy, titanium alloy, polyethylene, polytetrafluoroethylene, Kynoar, polypropylene, polyimides, linear polyphenyl materials, polystyrene or polyacetylene.The shape of cross section of lithium-air battery mould can be square, circular, triangle, trapezoidal or fan-shaped.
Described groove and air inlet/outlet junction all have sealing ring to seal.
The utility model discloses a kind of easy-to-assemble lithium-air battery mold configuration.The parts such as described battery mould is by top cover, housing, positive wire, negative wire, housing groove, and top cover is protruding, enters outlet passageway, power spring, gas flow field channels, fastening bolt composition.Particularly, the pressure of pole piece when discharge and recharge of this utility model can be regulated by spring, and gas according to the flow channels of design, and to be shared by the turnover gas circuit shared and other mould in the flow field of setting, but also can be used alone; Mould of the present utility model can pass through rotation direction, is realized the connection in series-parallel work of each monomer mould by simple circuit; The surface of this mould is insulation, and positive and negative lead wires is distributed in the both sides of top cover and housing, and can carry out connection in series-parallel work between mould.Mould designed by the utility model can make the pressure adjustable of pole piece in charge and discharge process, flowing to of air-flow is adjustable, and the connection in series-parallel sharing gas circuit and circuit between multiple mould can be made, make the 26S Proteasome Structure and Function of battery more rationally efficient, when testing for lithium-air battery, performance is normal, has a good application prospect.
Compared with existing battery configuration technology, the easy-to-assemble lithium-air battery mould that the utility model provides has following good effect:
1. air inlet/outlet is shared, and when connection in series-parallel, mould enjoys same air inlet and gas outlet, the minimizing of mould volume when being not only conducive to saving connection in series-parallel, and can reduce the connection of air inlet/outlet complexity, also can be used alone simultaneously;
2. gas can circulate according to the runner designed in advance by controllable airflow field, and can slow down the amount that electrolyte taken away by gas;
3. the positive and negative lead wires of this mould is symmetrically distributed in housing and top cover sidewall, facilitates the connection of both positive and negative polarity during battery module connection in series-parallel;
4. can be regulated the pressure of electrode slice by power spring, and synergy can be produced with airflow field;
5. the easy-to-assemble lithium-air battery mould that provides of the utility model, there is easy to assembly, that compact conformation, practicality are wide feature, not only can be used for assembling lithium-air battery, and be applicable to other metal-air cells, as aluminum-air cell, magnesium air cell or zinc-air cell.
Exemplify embodiment below further to describe the utility model in detail.Should understand equally; following examples are only for being further described the utility model; can not be interpreted as the restriction to the utility model protection range, some nonessential improvement that those skilled in the art makes according to foregoing of the present utility model and adjustment all belong to protection range of the present utility model.The technological parameter etc. that following example is concrete is also only an example in OK range, and namely those skilled in the art can be done in suitable scope by explanation herein and select, and do not really want the concrete numerical value being defined in Examples below.
Embodiment 1
As shown in Figure 1, housing 1-1 and top cover 1-2 material all adopt aluminium alloy to make, and surface is through insulation processing, and overall dimension is 80 × 80mm
2.The material of positive conductive spring and lead-in wire 1-3, cathode conductive film and lead-in wire 1-4 is stainless steel;
The assembling process of lithium-air battery carries out in glove box, detailed process is: by lithium sheet negative pole as on the conducting strip 1-3 in the groove 1-5 of housing 1-1, lithium sheet negative pole places barrier film, and on barrier film, drip appropriate electrolyte, air cathode pole piece is placed at the diaphragm adding electrolyte, and appropriate electrolyte is dripped on air cathode pole piece, place collector adding above the air cathode pole piece of electrolyte, finally top cover (spring) 1-2 is fixed to housing, and is fastened by bolts battery container;
As shown in Figure 4, the cell assembled is stacked to according to a certain direction the battery pile that just can form parallel connection together;
First the cell of assembling or battery pile are passed into the air or oxygen of circulation by air admission hole 1-7 (bubbling mode closes 1-7 '), discharge argon gas residual in housing groove 1-5, connecting test circuit carries out charge-discharge performance test to battery again, or connecting circuit is powered to electrical appliance;
Fig. 6 is the first charge-discharge cycle performance figure of the lithium-air battery with the easy-to-assemble lithium-air battery mould assembling of the present embodiment 1.This figure describes the lithium-air battery comprising above-mentioned easy-to-assemble lithium-air battery mould and has larger discharge energy.
Embodiment 2
As shown in Figure 1, housing 1-1 and top cover 1-2 material all adopt stainless steel (304) to make, and surface is through insulation processing, and size is 100 × 150mm
2.The material of positive conductive spring and lead-in wire 1-3, cathode conductive film and lead-in wire 1-4 is copper alloy;
The assembling process of battery is identical with embodiment 1, after battery pack installs into, as shown in Figure 5, multiple cell assembled is stacked to according to a certain direction and can forms series-connected cell heap together, air or oxygen appropriate time is passed into by air inlet/outlet road 1-7 (bubbling mode closes 1-7 '), discharge the argon gas in housing groove 1-5, then connecting test circuit carries out charge-discharge performance test to battery, or connecting circuit is powered to electrical appliance.
Embodiment 3
As shown in Figure 1, housing 1-1 and top cover 1-2 material all adopt magnesium alloy to make, and surface is through insulation processing, and size is 120 × 200mm
2.The material of positive conductive spring and lead-in wire 1-3, cathode conductive film and lead-in wire 1-4 is titanium alloy;
The assembling process of battery is identical with embodiment 1, after battery pack installs into, air or oxygen appropriate time is passed into by air inlet/outlet road 1-7 (bubbling mode closes 1-7 '), discharge the argon gas in housing groove 1-5, connecting test circuit carries out charge-discharge performance test to battery again, or connecting circuit is powered to electrical appliance.