Shell for metal gas battery and metal gas battery

Abstract

The utility model discloses a shell for a metal gas battery and the metal gas battery, the metal gas battery comprises a cathode layer and an anode layer, and the shell comprises a first insulating layer, a second insulating layer and a third insulating layer which are stacked in sequence; a first space is reserved between the first insulating layer and the second insulating layer; a second space is reserved between the second insulating layer and the third insulating layer; a first air inlet channel is formed in the first insulating layer, an air inlet of the first air inlet channel is located in the side face of the first insulating layer, and an air outlet of the first air inlet channel is located in the surface, opposite to the second insulating layer, of the first insulating layer; the second insulating layer is provided with a containing cavity, the containing cavity penetrates through the upper surface and the lower surface of the second insulating layer, the containing cavity is filled with electrolyte, and the containing cavity communicates with the air outlet of the first air inlet channel. And the gas can be buffered in the first gas inlet channel, so that the flow rate of the gas flowing to the catalyst is reduced, and the risk that the catalyst on the cathode layer falls off when the flow rate of the gas is high is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a shell for metal gas battery and metal gas battery. BACKGROUND

[0002] Metal gas battery has been applied in some fields because of cheap price, stable performance and more energy density compared with other batteries. When the metal gas battery works, the cathode layer catalyst captures oxygen or other gas (for example, carbon dioxide, nitrogen, etc.) in the gas as the active material of the cathode, and makes the gas reduction reaction during discharging. While the metal as the anode, the metal oxidizes during discharging, and the whole battery generates electric energy through the chemical reaction between the cathode and the anode.

[0003] At present, when the external gas flows to the shell of the metal gas battery, it directly flows to the catalyst on the cathode layer, so that the catalyst on the cathode layer often falls off when the gas flow rate is high.

[0004] Therefore, the prior art still needs to be improved and developed. UTILITY MODEL CONTENT

[0005] In view of the above deficiencies of the prior art, the purpose of the utility model is to provide a shell for metal gas battery and metal gas battery to solve the problem that the metal gas battery in the prior art often has catalyst falling off on the cathode layer when the gas flow rate is high.

[0006] The utility model provides a shell for metal gas battery, the metal gas battery includes cathode layer and anode layer, the shell includes: first insulating layer, second insulating layer and third insulating layer are sequentially stacked,

[0007] The first space for stacking the cathode layer is reserved between the first insulating layer and the second insulating layer;

[0008] The second space for stacking the anode layer is reserved between the second insulating layer and the third insulating layer;

[0009] The first gas inlet channel is opened on the first insulating layer, and the gas inlet of the first gas inlet channel is located on the side surface of the first insulating layer, and the gas outlet of the first gas inlet channel is located on the opposite surface of the first insulating layer and the second insulating layer;

[0010] The accommodating cavity is opened on the second insulating layer, the accommodating cavity penetrates the upper surface and the lower surface of the second insulating layer, the accommodating cavity is filled with electrolyte, and the accommodating cavity is communicated with the gas outlet of the first gas inlet channel;

[0011] When the first space is arranged with the cathode layer and the second space is arranged with the anode layer, one end of the electrolyte is connected with the anode layer, and the other end of the electrolyte is connected with the end of the cathode layer attached with the catalyst.

[0012] The first air inlet channel comprises a first groove and a first channel.

[0013] The first groove is arranged on the surface of the first insulating layer opposite to the second insulating layer, and the opening of the first groove on the surface of the first insulating layer is the air outlet of the first air inlet channel.

[0014] One end of the first channel is the air inlet of the first air inlet channel, and the other end of the first channel is communicated with the first groove.

[0015] The first insulating layer is further provided with a first air outlet channel, the air inlet of the first air outlet channel is communicated with the first groove, and the air outlet of the first air outlet channel is arranged opposite to the air inlet of the first air inlet channel.

[0016] The overlapping area of the projection of the air inlet of the first air outlet channel and the air outlet of the first air inlet channel on the side surface where the air inlet of the first air inlet channel is located is zero.

[0017] The electrolyte is a liquid electrolyte, the second insulating layer is provided with a first liquid inlet channel and a first liquid outlet channel, the liquid outlet of the first liquid inlet channel and the liquid inlet of the first liquid outlet channel are communicated with the accommodating cavity, the liquid inlet of the first liquid inlet channel and the liquid outlet of the first liquid outlet channel are located on two side surfaces of the second insulating layer, the side surface where the liquid inlet of the first liquid inlet channel is located and the side surface where the liquid outlet of the first liquid outlet channel is located are two symmetrically arranged side surfaces, and the overlapping area of the projection of the liquid outlet of the first liquid inlet channel and the liquid inlet of the first liquid outlet channel on the side surface where the liquid outlet of the first liquid inlet channel is located is zero.

[0018] The utility model further provides a kind of shell for metal gas battery, and the metal gas battery includes the cathode layer, gel electrolyte and anode layer arranged in layers, and the shell includes: first insulating layer and fourth insulating layer.

[0019] The first insulating layer and the fourth insulating layer are reserved with third space for placing the cathode layer, the gel electrolyte and the anode layer.

[0020] The first air inlet channel is arranged on the first insulation layer, and the air inlet of the first air inlet channel is arranged on the side surface of the first insulation layer.

[0021] When the third space is arranged with the cathode layer, the gel electrolyte and the anode layer, one end of the cathode layer is arranged between the gel electrolyte and the air outlet of the first air inlet channel, and one end of the anode layer is arranged in contact with the gel electrolyte.

[0022] The first air inlet channel comprises a first groove and a first channel.

[0023] The first groove is arranged on the surface of the first insulation layer opposite to the fourth insulation layer, and the opening of the first groove on the surface of the first insulation layer is the air outlet of the first air inlet channel.

[0024] One end of the first channel is the air inlet of the first air inlet channel, and the other end of the first channel is in communication with the first groove.

[0025] The first air inlet channel comprises a first groove and a first channel.

[0026] The projection of the air inlet of the first air inlet channel on the side surface of the air inlet of the first air inlet channel is zero.

[0027] The second groove is arranged on the surface of the fourth insulation layer in contact with the anode layer, and one end of the gel electrolyte and the anode layer are arranged in the second groove.

[0028] The utility model also provides a metal gas cell, which comprises the shell for the metal gas cell.

[0029] The utility model provides a kind of shell for metal gas cell and metal gas cell, in the shell, when gas enters, from the air inlet of first air inlet channel to cathode layer and catalyst reaction, wherein, the air inlet of first air inlet channel is located on the side surface of first insulation layer, the air outlet of first air inlet channel is located on the surface of first insulation layer opposite to second insulation layer, so it can be seen, when gas flows to catalyst, gas will be buffered in first air inlet channel, therefore, it will reduce the flow rate when gas flows to catalyst, and further reduce the risk of catalyst falling off on cathode layer when gas flow rate is high. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0031] Figure 1 It is the main view structure diagram of the shell for the metal gas battery in the present application.

[0032] Figure 2 It is the left view structure diagram of the shell for the metal gas battery in the present application.

[0033] Figure 3 It is the explosion view of the main view structure diagram of the shell for the metal gas battery in the present application.

[0034] Figure 4 It is the structure diagram of the first insulation layer in an embodiment of the present application.

[0035] Figure 5 It is the structure diagram of the second insulation layer in an embodiment of the present application.

[0036] Figure 6 It is the structure diagram of the third insulation layer in an embodiment of the present application.

[0037] Figure 7 It is the main view structure diagram of another shell for the metal gas battery in the present application.

[0038] Figure 8 It is the explosion view of another shell for the metal gas battery in the present application.

[0039] Figure 9 It is the structure diagram of the first insulation layer in an embodiment of the present application.

[0040] Figure 10 It is the structure diagram of the fourth insulation layer in an embodiment of the present application.

[0041] The marks in the drawings: 11, first insulation layer; 111, first air inlet channel; 1111, first channel; 112, first air outlet channel; 1112, first groove; 12, second insulation layer; 121, containing cavity; 122, first liquid inlet channel; 123, first liquid outlet channel; 13, third insulation layer; 14, fourth insulation layer; 141, second groove. DETAILED DESCRIPTION

[0042] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the technical scheme, and do not indicate that the indicated device or element must have a particular direction, therefore it cannot be understood as a limitation of the present application.

[0043] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , a shell for a metal gas cell is provided, the metal gas cell comprising a cathode layer and an anode layer, the shell can comprise a first insulating layer 11, a second insulating layer 12 and a third insulating layer 13 arranged in sequence; wherein a first space for stacking the cathode layer is reserved between the first insulating layer 11 and the second insulating layer 12; a second space for stacking the anode layer is reserved between the second insulating layer 12 and the third insulating layer 13. A first gas inlet channel 111 is formed on the first insulating layer 11, the gas inlet of the first gas inlet channel 111 is located on the side surface of the first insulating layer 11, and the gas outlet of the first gas inlet channel 111 is located on the opposite surface of the first insulating layer 11 and the second insulating layer 12; a containing chamber 121 is formed on the second insulating layer 12, the containing chamber 121 penetrates the upper surface and the lower surface of the second insulating layer 12, the containing chamber 121 is filled with electrolyte, and the containing chamber 121 is in communication with the gas outlet of the first gas inlet channel 111; when the first space is placed with the cathode layer and the second space is placed with the anode layer, one end of the electrolyte is connected with the anode layer, and the other end of the electrolyte is connected with the end of the cathode layer attached with the catalyst.

[0044] One end of the cathode layer is connected with the electrolyte in the containing chamber 121, and the end connected with the electrolyte in the containing chamber 121 is attached with a catalyst, and one end of the cathode layer is located between the electrolyte and the gas outlet of the first gas inlet channel 111; one end of the anode layer is connected with the electrolyte.

[0045] Specifically, the first insulating layer 11, the cathode layer, the second insulating layer 12, the anode layer and the third insulating layer 13 are stacked, the first space refers to the space between the first insulating layer 11 and the second insulating layer 12 for placing the cathode layer, and the second space refers to the space between the second insulating layer 12 and the third insulating layer 13 for placing the anode layer. The first insulating layer 11, the second insulating layer 12 and the third insulating layer 13 can be but are not limited to a square plate structure, wherein any insulating material can be selected when the first insulating layer 11, the second insulating layer 12 and the third insulating layer 13 are prepared, for example, acrylic plastic.

[0046] When the first insulating layer 11, the second insulating layer 12 and the third insulating layer 13 are connected, a screw connection mode can be used. Specifically, a plurality of through holes are formed in the first insulating layer 11, which penetrate the upper surface of the first insulating layer 11 and the lower surface of the first insulating layer 11. Similarly, a plurality of through holes are formed in the second insulating layer 12, which penetrate the upper surface of the second insulating layer 12 and the lower surface of the second insulating layer 12. A plurality of through holes are formed in the third insulating layer 13, which penetrate the upper surface of the third insulating layer 13 and the lower surface of the third insulating layer 13. The through holes penetrating the upper surface and the lower surface of the first insulating layer 11, the through holes penetrating the upper surface and the lower surface of the second insulating layer 12, and the through holes penetrating the upper surface and the lower surface of the third insulating layer 13 are correspondingly arranged. The bolts are connected with the nuts after penetrating the through holes, thereby connecting the first insulating layer 11, the second insulating layer 12 and the third insulating layer 13.

[0047] The material of the anode layer can be aluminum, magnesium, zinc or the like. In a specific embodiment, the material of the anode layer is zinc.

[0048] The material of the current collector of the cathode layer can be any material that can conduct electricity and allow catalyst to adhere (which can not be metal, any material that can conduct electricity and adhere catalyst), in a specific embodiment, the material of the current collector of the cathode layer is foamed nickel.

[0049] When the cathode layer and the anode layer are arranged, one end of the cathode layer is arranged between the opening of the accommodation chamber of the second insulating layer and the third insulating layer, i.e., one end of the cathode layer is in contact with the electrolyte; the end of the cathode layer with the catalyst is arranged between the other opening of the accommodation chamber of the second insulating layer and the first insulating layer, i.e., the end of the cathode layer with the catalyst is in contact with the electrolyte.

[0050] The electrolyte can be a solid electrolyte or a liquid electrolyte. In an embodiment, the electrolyte is a liquid electrolyte, which can be an electrolyte solution formed by mixing potassium hydroxide and zinc acetate, or an electrolyte solution formed by mixing magnesium chloride and magnesium sulfate, or a liquid electrolyte such as aluminum chloride, aluminum sulfate, and aluminum fluoride. The selection of the electrolyte solution is related to the material of the anode layer, and the person skilled in the art can determine the material of the electrolyte solution and the anode layer according to the actual situation.

[0051] In this embodiment, when the gas enters the metal gas battery, the oxygen in the gas flowing from the gas inlet of the first gas inlet channel 111 to the cathode layer reacts with the catalyst. The gas inlet of the first gas inlet channel 111 is located on the side of the first insulating layer 11, and the gas outlet of the first gas inlet channel 111 is located on the surface of the first insulating layer 11 opposite to the second insulating layer 12 and adjacent to the side of the first insulating layer 11. As can be seen, when the gas flows to the catalyst of the cathode layer, the gas will be buffered in the first gas inlet channel 111, thereby reducing the flow rate of the gas flowing to the catalyst and reducing the risk of the catalyst on the cathode layer falling off when the gas flow rate is high.

[0052] The gas can be air, oxygen, nitrogen, carbon dioxide, or the like, which can be determined by the person skilled in the art according to the actual situation.

[0053] In some embodiments, as shown in Figure 4 The first gas inlet channel 111 can include a first groove 1112 and a first channel 1111. The first groove 1112 is formed on the surface of the first insulating layer 11 opposite to the second insulating layer 12, and the opening of the first groove 1112 on the surface of the first insulating layer 11 is the gas outlet of the first gas inlet channel 111. One end of the first channel 1111 is the gas inlet of the first gas inlet channel 111, and the other end of the first channel 1111 communicates with the first groove 1112.

[0054] Specifically, the first groove 1112 can be, but is not limited to, a circular groove, and when the first groove 1112 is formed, the groove opening of the first groove 1112 communicates with the accommodation chamber 121. The first channel 1111 is a straight channel, and when the first channel 1111 is arranged, one end of the straight channel penetrates one side of the first insulating layer 11, and the other end of the straight channel penetrates one side wall of the first groove 1112, that is, one end of the first channel 1111 is the gas inlet of the first gas inlet channel 111, and the other end of the first channel 1111 communicates with the first groove 1112.

[0055] In this embodiment, when the gas enters the metal gas battery, it enters from one end of the first channel 1111 (the gas inlet of the first gas inlet channel 111) of the first insulating layer 11, is buffered at the connection position of the first channel 1111 and the first groove 1112 after entering, and then flows from the first groove 1112 to the cathode layer and reacts with the catalyst.

[0056] In some embodiments, as shown in Figure 4 The first exhaust passage 112 is further provided on the first insulation layer 11, the air inlet of the first exhaust passage 112 is communicated with the first groove 1112, and the air outlet of the first exhaust passage 112 is located on the side opposite to the side on which the air inlet of the first air inlet passage 111 is located, that is, the side of the first exhaust passage 112 on the first insulation layer 11 and the side of the first air inlet passage 111 on the first insulation layer 11 are two opposite sides.

[0057] In this embodiment, the gas entering the first groove 1112 reacts with the catalyst of the cathode layer and is then discharged from the first exhaust passage 112, so that when a plurality of metal gas cells using the shell are connected in series, the air outlet of the first exhaust passage 112 of one metal gas cell can be connected with the air inlet of the first air inlet passage 111 of the connected metal gas cell, so that the gas entering one metal gas cell reacts with the catalyst and then flows to the next connected metal gas cell for reaction, achieving full utilization of the gas.

[0058] Further, as shown in Figure 4 The air inlet of the first exhaust passage 112 is opposite to the air outlet of the first air inlet passage 111, and the overlapping area of the projection of the air inlet of the first exhaust passage 112 on the side on which the air inlet of the first air inlet passage 111 is located and the air outlet of the first air inlet passage 111 is zero.

[0059] Specifically, when the first exhaust passage 112 is provided, it can be provided as a straight passage, one end of the straight passage penetrates the side wall of the first groove 1112, and the side wall is opposite to the side wall on which the air outlet of the first air inlet passage 111 is located, that is, the air outlet of the first exhaust passage 112 is opposite to the air inlet of the first air inlet passage 111. When the first exhaust passage 112 is provided, its inner diameter can be determined according to actual needs, but the specific setting position of the first exhaust passage 112 needs to consider the specific setting position of the first air inlet passage 111, and when the first exhaust passage 112 is provided, the projection of the air inlet of the first exhaust passage 112 on the side on which the air outlet of the first air inlet passage 111 is located and the air outlet of the first air inlet passage 111 need to have an overlapping area of zero, that is, the air inlet of the first exhaust passage 112 and the air outlet of the first air inlet passage 111 are in a misaligned state, that is, the position of the air inlet of the first exhaust passage 112 and the position of the air outlet of the first air inlet passage 111 are misaligned with each other.

[0060] In the embodiment, the position of the gas inlet of the first exhaust passage 112 is staggered with the position of the gas outlet of the first air passage 111, so that the gas flowing out of the first air passage 111 will not be directly exhausted from the first exhaust passage 112, the residence time of the gas in the first groove 1112 is increased, the gas can be fully contacted with the catalyst, that is, the utilization rate of the gas is improved.

[0061] In some embodiments, as shown in Figure 5 The first liquid inlet passage 122 and the first liquid outlet passage 123 are arranged on the second insulation layer 12, the liquid outlet of the first liquid inlet passage 122 and the liquid outlet of the first liquid outlet passage 123 are communicated with the containing chamber 121, the liquid inlet of the first liquid inlet passage 122 and the liquid outlet of the first liquid outlet passage 123 are located on two sides of the second insulation layer 12, and the overlapping area of the projection of the liquid outlet of the first liquid inlet passage 122 and the liquid inlet of the first liquid outlet passage 123 on the side where the liquid outlet of the first liquid inlet passage 122 is located is zero.

[0062] When the electrolyte is a liquid electrolyte, in order not to affect the performance of the metal gas battery, the liquid electrolyte in the containing chamber 121 will be replaced after being used for a period of time. In the embodiment, when the liquid electrolyte in the containing chamber 121 is replaced, the used liquid electrolyte is discharged from the first liquid outlet passage 123, and then new liquid electrolyte is supplemented from the first liquid inlet passage 122. Therefore, the arrangement of the first liquid outlet passage 123 and the first liquid inlet passage 122 facilitates the replacement of the liquid electrolyte.

[0063] Further, as shown in Figure 5 When the first liquid inlet passage 122 and the first liquid outlet passage 123 are arranged, the liquid inlet of the first liquid inlet passage 122 and the liquid outlet of the first liquid outlet passage 123 are arranged on two opposite and symmetrical sides of the second insulation layer 12. When the first liquid inlet passage 122 and the first liquid outlet passage 123 are arranged, the overlapping area of the projection of the liquid inlet of the first liquid outlet passage 123 on the side where the liquid outlet of the first liquid inlet passage 122 is located and the liquid outlet of the first liquid inlet passage 122 is zero, that is, the liquid inlet of the first liquid outlet passage 123 is in a staggered state with the liquid outlet of the first liquid inlet passage 122, that is, the position of the liquid inlet of the first liquid outlet passage 123 is staggered with the position of the liquid outlet of the first liquid inlet passage 122.

[0064] As shown in Figure 7 , Figure 8 A shell for a metal gas battery is provided in the utility model, the metal gas battery comprises a cathode layer, a gel electrolyte and an anode layer which are arranged in layers, the shell can comprise a first insulation layer 11 and a fourth insulation layer 14, and a third space for placing the cathode layer, the gel electrolyte and the anode layer is reserved between the first insulation layer 11 and the fourth insulation layer 14.

[0065] The first air inlet channel 111 is formed in the first insulation layer 11, and the air inlet of the first air inlet channel 111 is located on the side surface of the first insulation layer 11, and the air outlet of the first air inlet channel 111 is located on the surface of the first insulation layer 11 opposite to the fourth insulation layer 14; when the third space is provided with the cathode layer, the gel electrolyte and the anode layer, one end of the cathode layer is located between the gel electrolyte and the air outlet of the first air inlet channel 111, and one end of the anode layer is connected with the gel electrolyte.

[0066] Specifically, the third space refers to the space in which the cathode layer, the gel electrolyte and the anode layer are stacked and arranged between the first insulation layer 11 and the fourth insulation layer 14. The first insulation layer 11, the cathode layer, the gel electrolyte, the anode layer and the fourth insulation layer 14 are sequentially stacked. The air outlet of the first air inlet channel 111 is located on the surface of the first insulation layer 11 opposite to the fourth insulation layer 14 and adjacent to the side surface of the first insulation layer 11. The first insulation layer 11 and the fourth insulation layer 14 can be but are not limited to a square plate structure, wherein any insulating material can be selected when the first insulation layer 11 and the fourth insulation layer 14 are prepared, for example, acrylic plastic.

[0067] When the first insulation layer 11 and the fourth insulation layer 14 are connected, a screw connection mode can be used. Specifically, a plurality of through holes are formed in the first insulation layer 11, which penetrate the upper surface of the first insulation layer 11 and the lower surface of the first insulation layer 11. Similarly, a plurality of through holes are formed in the fourth insulation layer 14, which penetrate the upper surface of the fourth insulation layer 14 and the lower surface of the fourth insulation layer 14. The through holes penetrating the upper surface and the lower surface of the first insulation layer 11 and the through holes penetrating the upper surface and the lower surface of the fourth insulation layer 14 are arranged one by one. The through holes are connected with nuts through bolts, so as to connect the first insulation layer 11 and the fourth insulation layer 14.

[0068] The material of the anode layer can be aluminum, magnesium, zinc or the like. In a specific embodiment, the material of the anode layer is zinc.

[0069] The material of the cathode layer can be any material that can conduct electricity and allow catalyst to adhere (which can not be metal, and any material that can conduct electricity and adhere catalyst can be used), and in a specific embodiment, the material of the anode layer is foamed nickel.

[0070] Wherein, when the cathode layer and the anode layer are arranged, one end of the anode layer is arranged between the fourth insulating layer 14 and the gel electrolyte, so that the one end of the anode layer is connected with one end of the gel electrolyte; the end of the cathode layer attached with the catalyst is arranged between the air outlet of the first air inlet channel 111 on the first insulating layer 11 and the other end of the gel electrolyte, so that the end of the cathode layer attached with the catalyst is connected with the gel electrolyte and located at the air outlet of the first air inlet channel 111, and the gas connected by the first air inlet channel 111 flows to the end of the cathode layer attached with the catalyst to react.

[0071] In the embodiment, when the gas enters the metal gas battery, the oxygen in the gas flowing to the cathode layer from the air inlet of the first air inlet channel 111 is reduced by the catalyst. Wherein, the air inlet of the first air inlet channel 111 is located on the side surface of the first insulating layer 11, and the air outlet of the first air inlet channel 111 is located on the surface of the first insulating layer 11 opposite to the fourth insulating layer 14 and adjacent to the side surface of the first insulating layer 11. Therefore, when the gas flows to the catalyst of the cathode layer, the gas can be buffered in the first air inlet channel 111, so that the flow rate of the gas flowing to the catalyst is reduced, and the risk of the catalyst on the cathode layer falling off when the flow rate of the gas is high is reduced.

[0072] Wherein, the gas can be air, oxygen, nitrogen, carbon dioxide and the like, which can be determined by those skilled in the art according to the actual situation.

[0073] In some embodiments, as shown in Figure 9 The first air inlet channel 111 can include a first groove 1112 and a first channel 1111. The first groove 1112 is arranged on the surface of the first insulating layer 11 opposite to the fourth insulating layer 14, and the opening of the first groove 1112 on the surface of the first insulating layer 11 is the air outlet of the first air inlet channel 111. One end of the first channel 1111 is the air inlet of the first air inlet channel 111, and the other end of the first channel 1111 is communicated with the first groove 1112.

[0074] Specifically, the first groove 1112 can be but not limited to a square groove, which needs to be determined in combination with the specific size structure of the end of the gel electrolyte connected with the cathode layer when being arranged, so as to ensure that the end of the gel electrolyte connected with the cathode layer does not extend into the first groove 1112 after the first insulating layer 11 is connected with the fourth insulating layer 14.

[0075] The first channel 1111 is a straight channel, one end of which penetrates one side surface of the first insulating layer 11, and the other end of which penetrates one side wall of the first groove 1112, that is, one end of the first channel 1111 is the air inlet of the first air inlet channel 111, and the other end of the first channel 1111 is communicated with the first groove 1112.

[0076] In the embodiment, when the gas enters the metal gas cell, it enters from the first channel 1111 at one end of the first insulating layer 11 (the gas inlet of the first gas inlet channel 111), and after entering, it is buffered at the connection position of the first channel 1111 and the first groove 1112, and then flows from the first groove 1112 to the cathode layer and reacts with the catalyst.

[0077] In some embodiments, as shown in Figure 9 The first insulating layer 11 is also provided with a first exhaust channel 112, the gas inlet of the first exhaust channel 112 is in communication with the first groove 1112, and the gas outlet of the first exhaust channel 112 is arranged opposite to the gas inlet of the first gas inlet channel 111, that is, the side of the gas outlet of the first exhaust channel 112 on the first insulating layer 11 and the side of the gas inlet of the first gas inlet channel 111 on the first insulating layer 11 are two opposite sides.

[0078] In the embodiment, after the gas enters the first groove 1112 and reacts with the catalyst of the cathode layer, it is also discharged from the first exhaust channel 112. Therefore, when a plurality of metal gas cells are connected in series, the gas outlet of the first exhaust channel 112 of one metal gas cell can be connected with the gas inlet of the first gas inlet channel 111 of the connected metal gas cell, so that the gas in one metal gas cell reacts with the catalyst and then further flows into the next connected metal gas cell for reaction, achieving full utilization of the gas.

[0079] Further, the gas inlet of the first exhaust channel 112 is arranged opposite to the gas outlet of the first gas inlet channel 111, and the overlapping area of the projection of the gas inlet of the first exhaust channel 112 on the side of the gas inlet of the first gas inlet channel 111 is zero.

[0080] Specifically, when the first exhaust channel 112 is arranged, it can be arranged as a straight channel, one end of the straight channel penetrates the side wall of the first groove 1112, and the side wall is arranged opposite to the side wall where the gas outlet of the first gas inlet channel 111 is located, that is, the gas outlet of the first exhaust channel 112 is arranged opposite to the gas inlet of the first gas inlet channel 111. When the first exhaust channel 112 is arranged, its inner diameter can be determined according to actual needs, but the specific arrangement position of the first exhaust channel 112 needs to consider the specific arrangement position of the first gas inlet channel 111. When the first exhaust channel 112 is arranged, it needs to ensure that the overlapping area of the projection of the gas inlet of the first exhaust channel 112 on the side of the gas outlet of the first gas inlet channel 111 and the gas outlet of the first gas inlet channel 111 is zero, that is, the gas inlet of the first exhaust channel 112 is in a misaligned state with the gas outlet of the first gas inlet channel 111, that is, the position of the gas inlet of the first exhaust channel 112 and the position of the gas outlet of the first gas inlet channel 111 are misaligned with each other.

[0081] In the embodiment, the position of the air inlet of the first exhaust passage 112 is staggered with the position of the air outlet of the first air passage 111, so that the gas flowing out of the first air passage 111 will not directly flow out of the first exhaust passage 112, the residence time of the gas in the first groove 1112 is increased, and the utilization rate of the gas is improved.

[0082] In some embodiments, as shown in Figure 10 The surface of the fourth insulating layer 14, which is connected with the anode layer, is provided with a second groove 141, and one end of the gel electrolyte and the anode layer are arranged in the second groove 141.

[0083] Specifically, when the second groove 141 is arranged, the specific structure of the anode layer and the gel electrolyte should be considered, and it is necessary to ensure that the anode layer and one end of the gel electrolyte (the end connected with the anode layer) can be arranged in the second groove 141. For example, when the anode layer is a square electrode layer and the gel electrolyte is a square electrolyte, the second groove 141 can be a square groove, and the anode layer and one end of the gel electrolyte can be arranged in the square groove. For another example, when the anode layer is a circular electrode layer and the gel electrolyte is a circular electrolyte, the second groove 141 can be a circular groove, and the anode layer and one end of the gel electrolyte can be arranged in the circular groove. The shape of the second groove 141 can be arranged according to the shape of the gel electrolyte required by itself, and the shape of the second groove 141 can be determined by the person skilled in the art according to the actual situation.

[0084] Further, when the depth of the second groove 141 is arranged, the depth of the second groove 141 is greater than the thickness of the anode layer, so that when the anode layer is placed in the second groove 141, the anode layer will not extend out of the upper surface of the fourth insulating layer 14, and one end of the gel electrolyte is arranged in the second groove 141. The depth of the second groove 141 can be adjusted according to the required thickness of the anode metal and the required thickness of the gel electrolyte, and the depth of the second groove 141 can be determined by the person skilled in the art according to the actual situation.

[0085] In the embodiment, one end of the anode layer and the gel electrolyte is arranged in the second groove 141, so that the second groove 141 can play a limiting and fixing role for the anode layer and the gel electrolyte, and can also slow down the evaporation speed of the electrolyte in the gel electrolyte, thereby reducing the invalidation of the gel electrolyte due to the evaporation of the electrolyte.

[0086] Further, when the cathode layer and the anode layer are connected with the outside, the cathode layer and the anode layer can be led out through wires respectively. When the cathode layer is led out through the wire, one end of the wire is connected with the cathode layer, and the other end of the wire extends out of the metal gas battery. Similarly, when the anode layer is led out through the wire, one end of the wire is connected with the anode layer, and the other end of the wire extends out of the metal gas battery.

[0087] When the metal gas battery is connected with the load, the other end of the wire connected with the cathode layer is connected with the negative power supply end of the load, and the other end of the wire connected with the anode layer is connected with the positive power supply end of the load, so that the metal gas battery is connected with the load.

[0088] Further, as shown in the second groove 141 is provided, can be set to a T-shaped groove, so that the cathode layer connected with the wire can be placed in the T-shaped groove. Figure 10

[0089] In some embodiments, the utility model also provides a metal gas battery, the metal gas battery can include the shell for metal gas battery as described above.

[0090] In some embodiments, the metal gas battery includes a cathode layer and an anode layer, and the shell can include a first insulating layer 11, a second insulating layer 12 and a third insulating layer 13 arranged in sequence.

[0091] Wherein, first insulating layer 11 and second insulating layer 12 between the first space for stacking cathode layer is reserved;Second insulating layer 12 and third insulating layer 13 between the second space for stacking anode layer is reserved.Use first air passage 111 to be set up on first insulating layer 11, the air inlet of first air passage 111 is located at the side of first insulating layer 11, and the air outlet of first air passage 111 is located at the opposite surface of first insulating layer 11 and second insulating layer 12;Second insulating layer 12 is set up with containing chamber 121, containing chamber 121 penetrates the upper surface and lower surface of second insulating layer 12, containing chamber 121 is filled with electrolyte, and containing chamber 121 is communicated with the air outlet of first air passage 111;When the first space is placed with cathode layer, the second space is placed with anode layer, one end of electrolyte is connected with anode layer, and the other end of electrolyte is connected with the one end of cathode layer attached with catalyst.

[0092] In some embodiments, the metal gas battery includes a cathode layer, a gel electrolyte and an anode layer arranged in sequence, and the shell can include a first insulating layer 11 and a fourth insulating layer 14. The third space for placing the cathode layer, the gel electrolyte and the anode layer is reserved between the first insulating layer 11 and the fourth insulating layer 14. The first air passage 111 is set up on the first insulating layer 11, the air inlet of the first air passage 111 is located at the side of the first insulating layer 11, and the air outlet of the first air passage 111 is located at the opposite surface of the first insulating layer 11 and the fourth insulating layer 14;When the third space is placed with the cathode layer, the gel electrolyte and the anode layer, one end of the cathode layer is located between the gel electrolyte and the air outlet of the first air passage 111, and one end of the anode layer is connected with the gel electrolyte.

[0093] ​Here, it needs to be pointed out that the above metal gas cell embodiment description, with the above for metal gas cell shell embodiment description is similar, with the above for metal gas cell shell embodiment similar beneficial effect. For metal gas cell embodiment not disclosed technical details, please refer to the utility model for metal gas cell shell embodiment description and understand.

[0094] In summary, the utility model provides a kind of shell for metal gas cell and metal gas cell, with following effects:

[0095] When gas enters, from the gas inlet of first gas inlet channel 111 to cathode layer, oxygen in gas occurs oxygen reduction reaction under the action of catalyst, wherein, the gas inlet of first gas inlet channel 111 is located at first side, and the gas outlet of first gas inlet channel 111 is located on the surface of first insulating layer, so it can be seen that, when gas flows to cathode layer, it will be buffered in first gas inlet channel 111, therefore, it will reduce the flow rate when gas flows to cathode layer, reduce the risk of catalyst falling off on cathode layer when gas flow rate is high.

[0096] It can be understood that the above embodiment only expresses the preferred embodiment of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent; It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, the above technical features can be freely combined, and some deformations and improvements can be made, which belong to the protection scope of the utility model; Therefore, any equivalent transformation and modification within the scope of the claims of the utility model should belong to the scope of the claims of the utility model.

Claims

1. A case for a metal-gas cell comprising a cathode layer and an anode layer, characterized by, The shell comprises a first insulating layer, a second insulating layer and a third insulating layer arranged in sequence; A first space is reserved between the first insulating layer and the second insulating layer for stacking the cathode layer; A second space is reserved between the second insulating layer and the third insulating layer for stacking the anode layer; A first gas inlet channel is formed in the first insulating layer, and a gas outlet of the first gas inlet channel is located on a surface of the first insulating layer opposite to the second insulating layer; A containing cavity is formed in the second insulating layer, and the containing cavity penetrates through upper and lower surfaces of the second insulating layer, and is filled with an electrolyte, and the containing cavity is in communication with the gas outlet of the first gas inlet channel; When the first space is provided with the cathode layer and the second space is provided with the anode layer, one end of the electrolyte is in contact with the anode layer, and the other end of the electrolyte is in contact with one end of the cathode layer attached with a catalyst.

2. The case for a metal-gas cell according to claim 1, wherein The first gas inlet channel comprises a first groove and a first channel; The first groove is formed in a surface of the first insulating layer opposite to the second insulating layer, and an opening of the first groove on the surface of the first insulating layer is the gas outlet of the first gas inlet channel; One end of the first channel is the gas inlet of the first gas inlet channel, and the other end of the first channel is in communication with the first groove.

3. The case for a metal-gas cell according to claim 2, wherein A first gas outlet channel is also formed in the first insulating layer, a gas inlet of the first gas outlet channel is in communication with the first groove, and a gas outlet of the first gas outlet channel is arranged opposite to the gas inlet of the first gas inlet channel; The first gas outlet channel has a zero overlapping area with a projection of the gas outlet of the first gas outlet channel on a side surface of the gas inlet of the first gas inlet channel.

4. The case for a metal-gas cell according to any one of claims 1 to 3, characterized in that The electrolyte is a liquid electrolyte, a first liquid inlet channel and a first liquid outlet channel are formed in the second insulating layer, a liquid outlet of the first liquid inlet channel and a liquid inlet of the first liquid outlet channel are in communication with the containing cavity, the liquid inlet of the first liquid inlet channel and the liquid outlet of the first liquid outlet channel are located on two side surfaces of the second insulating layer, the side surface where the liquid inlet of the first liquid inlet channel is located and the side surface where the liquid outlet of the first liquid outlet channel is located are two symmetrically arranged side surfaces, and the first liquid inlet channel has a zero overlapping area with a projection of the liquid outlet of the first liquid inlet channel on the side surface where the liquid outlet is located.

5. A case for a metal-gas cell comprising a cathode layer, a gel electrolyte, and an anode layer arranged in a stack, characterized by, The shell comprises a first insulating layer and a fourth insulating layer; A third space is reserved between the first insulating layer and the fourth insulating layer for stacking the cathode layer, the gel electrolyte and the anode layer; A first gas inlet channel is formed in the first insulating layer, and a gas inlet of the first gas inlet channel is located on a side surface of the first insulating layer, and a gas outlet of the first gas inlet channel is located on a surface of the first insulating layer opposite to the fourth insulating layer; When the third space is provided with the cathode layer, the gel electrolyte and the anode layer, one end of the cathode layer is located between the gel electrolyte and the gas outlet of the first gas inlet channel, and one end of the anode layer is connected to the gel electrolyte.

6. The case for a metal-gas cell according to claim 5, wherein The first gas inlet channel comprises a first groove and a first channel; The first groove is formed on the surface of the first insulating layer opposite to the fourth insulating layer, and the opening of the first groove on the surface of the first insulating layer is the gas outlet of the first gas inlet channel; One end of the first channel is the gas inlet of the first gas inlet channel, and the other end of the first channel is connected to the first groove.

7. The case for a metal-gas cell according to claim 6, wherein A first gas outlet channel is also formed on the first insulating layer, the gas inlet of the first gas outlet channel is connected to the first groove, and the gas outlet of the first gas outlet channel is arranged opposite to the gas inlet of the first gas inlet channel.

8. The case for a metal-gas cell according to claim 7, wherein The overlapping area of the projection of the gas inlet of the first gas outlet channel and the gas outlet of the first gas inlet channel on the side where the gas inlet of the first gas inlet channel is located is zero.

9. The case for a metal-gas cell according to claim 7, wherein A second groove is formed on the surface of the fourth insulating layer connected to the anode layer, and one end of the gel electrolyte and the anode layer are arranged in the second groove.

10. A metal-gas cell characterized by Comprise: The housing for a metal-gas cell according to any one of claims 1 to 4, or the housing for a metal-gas cell according to any one of claims 5 to 9.

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