A hydrogen powered battery system

Abstract

The present invention relates to the field of battery technology, and discloses a hydrogen power battery system, including a battery body, a hydrogen storage tank, an oxidant storage tank, an output conversion module and a control system, wherein an output positive electrode and an output negative electrode are arranged on the output conversion module, the battery body includes a battery shell, a battery positive electrode and a battery negative electrode, the battery negative electrode includes a negative electrode base band and a hydrogen storage material, the battery positive electrode includes a positive electrode base band and a conductive sheet, the battery shell is filled with an alkaline electrolyte, the hydrogen storage tank is connected to the battery negative electrode through a pipeline, and the oxidant storage tank is connected to the battery positive electrode through a pipeline. The control system controls the hydrogen storage tank and the oxidant storage tank to transport hydrogen and oxidant into the battery body, so that the battery is in a charged state, and can continuously supply power to the outside, and the battery is continuously supplied with power by adding fuel, which omits the charging time, and at the same time, the battery does not need precious metals as catalysts, which reduces the application cost of the battery in new energy vehicles.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a hydrogen powered battery system. Background Art

[0002] With the popularization of environmental protection concepts, people's demand for clean new energy is gradually increasing. Developing new energy vehicles to reduce carbon emissions is one of the important measures for environmental protection. Most of the existing new energy vehicles use lithium-ion batteries. Lithium-ion batteries have the advantages of high energy density and high power. However, there are the following problems with lithium-ion batteries in new energy vehicles: (1) The vehicle's endurance is weak and needs to be charged at any time; (2) The charging time is long, and it takes at least 3 hours to fully charge; (3) The mileage is seriously reduced in low temperature environments. Based on the above points, lithium-ion batteries have hindered the promotion and popularization of new energy vehicles.

[0003] Fuel cells can make up for the shortcomings of lithium-ion batteries. Fuel cells use hydrogen as an energy source. Through the reaction of hydrogen and hydrogen on a catalyst, chemical energy is directly converted into electrical energy to produce pollution-free water. Using hydrogen fuel cells as a power source allows new energy vehicles to quickly replenish energy through hydrogenation, just like fuel vehicles, similar to refueling gasoline. However, fuel cells have the following problems: (1) High-purity platinum is required as a catalyst. Platinum is a rare and precious metal with high price and small reserves on the earth. The current global proven reserves are only 70,000 tons, which is not suitable for large-scale use in industry; (2) Fuel cells themselves have no power storage function. During use, an additional secondary battery system is required, resulting in high costs, which seriously restricts their promotion and application. Therefore, it is urgent to develop a new battery system to make up for the long charging time and high application cost of lithium-ion batteries and fuel cells when they are used in new energy vehicles. Summary of the invention

[0004] The purpose of the present invention is to provide a hydrogen power battery system to solve the problems of long charging time and high application cost when the battery in the prior art is used in new energy vehicles.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a hydrogen power battery system, comprising a battery body, a hydrogen storage tank, an oxidant storage tank, an output conversion module and a control system, wherein the control system is signal-connected with the hydrogen storage tank, the oxidant storage tank and the output conversion module respectively, the output conversion module is electrically connected with the battery body, and an output positive electrode and an output negative electrode for transmitting electricity to the outside are arranged on the output conversion module, the battery body comprises a battery housing, a battery positive electrode and a battery negative electrode, the battery negative electrode comprises a negative electrode base band and a hydrogen storage material arranged on the negative electrode base band, the battery positive electrode comprises a positive electrode base band and a conductive sheet arranged on the positive electrode base band, the battery positive electrode and the battery negative electrode are separated by a diaphragm, the battery housing is filled with an alkaline electrolyte, the hydrogen storage tank is connected to the battery negative electrode through a pipeline, and the oxidant storage tank is connected to the battery positive electrode through a pipeline.

[0006] Preferably, the hydrogen storage material includes at least one of hydrogen storage alloys, carbon nanomaterials, and graphene.

[0007] Preferably, nickel hydroxide and a conductive agent are also arranged on the conductive sheet, and the nickel hydroxide and the conductive agent are fixed on the conductive sheet by an adhesive.

[0008] Preferably, the conductive agent includes conductive carbon, graphite, cobaltous oxide, and nickel powder.

[0009] Preferably, the concentration of the alkaline electrolyte is 5-11 mol / L.

[0010] Preferably, the diaphragm is arranged in two layers, and gel is arranged between the two layers of the diaphragm.

[0011] Preferably, a permeable membrane is arranged on the side of the battery positive electrode facing away from the battery negative electrode, and the permeable membrane is arranged in contact with the battery positive electrode.

[0012] Preferably, the positive electrode oxidant in the oxidant storage tank includes oxygen, hydrogen peroxide, hypochlorous acid, and ozone.

[0013] Preferably, a drain port is arranged at the bottom of the battery housing, a semi-permeable membrane for only allowing water molecules to pass through is arranged on the drain port, and a drain valve is connected to the drain port.

[0014] Preferably, the battery bodies are arranged in two groups, both groups of the battery bodies are electrically connected to the output conversion module, the hydrogen storage tank is communicated with the two groups of the battery bodies respectively, and the oxidant storage tank is communicated with the two groups of the battery bodies respectively.

[0015] Compared with the prior art, a hydrogen power battery system according to an embodiment of the present invention has the following beneficial effects: the negative electrode of the battery is formed by a negative electrode base strip and a hydrogen storage material, the battery housing is filled with an alkaline electrolyte, the hydrogen storage material can absorb hydrogen at room temperature to form an MH alloy, and the alloy has an electric potential of -0.8V in an alkaline solution. During discharge, the oxidant has a positive electrode potential in an alkaline solution, so that the battery body transmits electricity to the outside through an output conversion module, and the control system controls the hydrogen storage tank and the oxidant storage tank to transport hydrogen and oxidant into the battery body, so that the battery is in a charged state and can continuously supply power to the outside. The battery is continuously supplied with power by adding fuel, which saves charging time. At the same time, no precious metal is required as a catalyst on the battery, thereby reducing the application cost of the battery in new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the hydrogen power battery system of the present invention;

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure of the battery body of the hydrogen power battery system.

[0018] In the figure, 1. Hydrogen storage tank; 2. Oxidant storage tank; 3. Output conversion module; 31. Output positive electrode; 32. Output negative electrode; 4. Control system; 5. Battery body; 51. Battery shell; 52. Hydrogen inlet; 53. Battery negative electrode; 54. Diaphragm; 55. Battery positive electrode; 56. Permeable membrane; 57. Oxidant inlet; 58. Drain outlet; 581. Semipermeable membrane; 59. Drain valve; 6. Pipeline; 7. Regulating valve; 8. Pressure reducing valve; 9. Pressure gauge; 10. Drain pipe. DETAILED DESCRIPTION

[0019] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] A preferred embodiment of a hydrogen power battery system of the present invention is as follows: Figure 1 and Figure 2 As shown, the hydrogen power battery system includes a battery body 5, a hydrogen storage tank 1, an oxidant storage tank 2, an output conversion module 3 and a control system 4. The output conversion module 3 is electrically connected to the battery body 5. The output module is provided with an output positive electrode 31 and an output negative electrode 32 for transmitting electricity to the outside. The output conversion module 3 is used to transform the electricity generated by the battery body 5, and transmit the electricity to the electrical equipment through the output positive electrode 31 and the output negative electrode 32.

[0021] The hydrogen storage tank 1 is connected to the negative electrode 53 of the battery through a pipe 6, the oxidant storage tank 2 is connected to the positive electrode 55 of the battery through a pipe 6, and the control system 4 is signal-connected to the hydrogen storage tank 1, the oxidant storage tank 2, and the output conversion module 3. The control system 4 can control the rate at which the hydrogen storage tank 1 and the oxidant storage tank 2 transmit hydrogen and oxidant to the battery body 5, and control the output power of the output conversion module 3 at the same time.

[0022] The battery body 5 includes a battery shell 51, a battery positive electrode 55 and a battery negative electrode 53. The battery shell 51 is a rectangular parallelepiped structure. The battery positive electrode 55 and the battery negative electrode 53 are spaced apart in the battery body 5 along the up and down directions. The battery positive electrode 55 and the battery negative electrode 53 are parallel to each other. The battery negative electrode 53 is located on the upper side of the battery positive electrode 55. A hydrogen inlet 52 is opened at the top of the battery shell 51, and an oxidant inlet 57 is opened at the bottom of the battery shell 51. The hydrogen storage tank 1 is connected to the hydrogen inlet 52 through a pipeline 6, and the oxidant storage tank 2 is connected to the oxidant inlet 57 through a pipeline 6. A regulating valve 7 is arranged on each pipeline 6. The control system 4 is connected to the regulating valve 7 through a control line to control the opening of the regulating valve 7, thereby controlling the flow of the oxidant and hydrogen.

[0023] The negative electrode 53 of the battery includes a negative electrode base strip and a hydrogen storage material, and the hydrogen storage material is arranged on the negative electrode base strip. The hydrogen storage material is usually formed of a variety of rare earth elements or carbon materials, represented by M. The hydrogen storage material can absorb hydrogen at room temperature to form an MH alloy. This material has a potential of -0.8V in an alkaline solution (such as a sodium hydroxide solution or a potassium hydroxide solution).

[0024] The positive electrode 55 of the battery includes a positive electrode base band and a conductive sheet. The conductive sheet is arranged on the positive electrode base band. The conductive sheet is used to conduct electrons. The positive electrode base band and the negative electrode base band play a bearing role. The material of the negative electrode base band usually includes copper mesh, foamed nickel, steel strip, etc., and the material of the positive electrode base band usually includes foamed nickel, steel strip, etc.

[0025] The battery positive electrode 55 and the battery negative electrode 53 are separated by a diaphragm 54. The battery housing 51 is filled with an alkaline electrolyte. The diaphragm 54 separates the battery positive electrode 55 and the battery negative electrode 53 to prevent the battery positive electrode 55 and the battery negative electrode 53 from directly contacting each other and preventing a short circuit. The battery negative electrode 53, the battery positive electrode 55 and the diaphragm 54 are all arranged in the alkaline electrolyte. The battery positive electrode 55 and the battery negative electrode 53 transfer electrons through the alkaline electrolyte to achieve the purpose of current flow.

[0026] The hydrogen storage tank 1 is also provided with a pressure reducing valve 8 and a pressure gauge 9, both of which are connected to the control system 4 by signal. The pressure in the electrical body is fed back to the control system 4 through the pressure gauge 9 to control the regulating valve 7.

[0027] The hydrogen storage material generates a negative potential in the alkaline electrolyte, and the oxidant generates a positive potential in the alkaline electrolyte. When the battery positive electrode 55 uses nickel hydroxide as an active material and the oxidant uses hydrogen peroxide, the reaction principle of the battery positive electrode 55 and the battery negative electrode 53 is:

[0028] The charging reaction is:

[0029] Negative electrode 2M+H2=2MH;

[0030] Positive electrode: 2Ni(OH)2+H2O2=2NiOOH+2H2O;

[0031] The reaction to external discharge is:

[0032] Negative electrode MH+OH － =H2O+M+e;

[0033] Positive electrode NiOOH+H2O=Ni(OH)2+OH-e.

[0034] From the above reaction, it can be seen that the overall reaction is actually H2+H2O2=2H2, that is, the added hydrogen reacts with hydrogen peroxide to generate electricity.

[0035] Nickel hydroxide will generate nickel oxyhydroxide under the action of oxidant, and nickel oxyhydroxide has an electric potential of 0.4V in alkaline solution. When the voltage of the battery is greater than or equal to 1.4V / cell, it is considered to be fully charged, and when the voltage of the battery is less than or equal to 0.9V / cell, it is considered to be empty.

[0036] When the positive electrode 55 of the battery is made of metal material and is not coated with nickel hydroxide active material, the positive electrode 55 of the battery has no active material, and no reaction occurs during charging. When the voltage of the battery is greater than or equal to 0.8V / cell, it is considered to be fully charged, and when the voltage of the battery is less than or equal to 0.5V / cell, it is considered to be empty. The principle of discharge is:

[0037] Positive electrode: O2+H2O=OH-e;

[0038] Negative electrode: MH+OH － =H2O+M+e.

[0039] The battery system does not require external charging, but uses the method of adding fuel to keep it in a charged state, and can continuously supply power to the outside without any gaps in between. In actual use, the system is divided into two independent spaces, separated by a diaphragm 54, hydrogen is injected into the space on the negative electrode side, and an oxidant is added to the positive electrode side to charge the system, thereby eliminating the charging time. At the same time, the battery does not need precious metals as catalysts, which reduces the application cost of the battery in new energy vehicles.

[0040] Preferably, the hydrogen storage material includes at least one of hydrogen storage alloys, carbon nanostructures, and graphene.

[0041] The function of hydrogen storage materials is to absorb hydrogen at room temperature to form MH alloys, which have an electric potential of -0.8V in alkaline solutions (such as sodium hydroxide solutions or potassium hydroxide solutions). Hydrogen storage alloys, carbon nanotubes, and graphene are commonly used hydrogen storage materials with mature technology and good voltage stability.

[0042] Preferably, nickel hydroxide and a conductive agent are also arranged on the conductive sheet, and the nickel hydroxide and the conductive agent are fixed on the conductive sheet by an adhesive.

[0043] The conductive agent can increase the flow of electricity and reduce the loss of electricity. Nickel hydroxide forms the active agent of the positive electrode 55 of the battery. When charging, it reacts with the oxidant in the alkaline electrolyte to generate nickel peroxide and electrons, generating an electric potential. Using nickel hydroxide as an active agent can increase the electric potential of the positive electrode 55 of the battery, thereby increasing the power of the battery system.

[0044] Preferably, the conductive agent includes conductive carbon, graphite, cobaltous oxide, and nickel powder.

[0045] The function of the conductive agent is to increase the flow of electricity in the positive electrode 55 of the battery and reduce the loss of electricity. Conductive carbon, graphite, cobaltous oxide and nickel powder have good conductive effects as conductive agents.

[0046] In this embodiment, the material of the binder is CMC (sodium carboxymethyl cellulose), PTFE (Poly tetrafluoroethylene), SBR (Styrene-butadiene rubber), etc.

[0047] Preferably, the concentration of the alkaline electrolyte is 5-11 mol / L.

[0048] The reaction efficiency of alkaline electrolyte with a concentration of 5-11 mol / L is high. In this embodiment, the optimal concentration of the alkaline electrolyte is 7 mol / L. The alkaline electrolyte can be a sodium hydroxide solution, a potassium hydroxide solution, or the like.

[0049] Preferably, the diaphragm 54 is arranged in two layers, and gel is arranged between the two layers of diaphragm 54 .

[0050] The diaphragm 54 is used to isolate the positive electrode 55 of the battery and the negative electrode 53 of the battery to avoid short circuit. Another function of the diaphragm 54 is to store alkaline electrolyte and use the alkaline electrolyte to transfer electrons to achieve the purpose of current.

[0051] The main components of the diaphragm 54 include PP (polypropylene), PE (polyethylene), etc. The gel is PVA (polyisopropyl alcohol) gel. The gel can isolate the gas flow between the battery positive electrode 55 and the battery negative electrode 53. The hydrogen in the battery negative electrode 53 will not diffuse to the battery positive electrode 55, and the hydrogen in the battery positive electrode 55 will not diffuse to the battery negative electrode 53. The gel can increase the isolation effect of the diaphragm 54.

[0052] Preferably, a permeable membrane 56 is arranged on the side of the battery positive electrode 55 facing away from the battery negative electrode 53 , and the permeable membrane 56 is arranged in contact with the battery positive electrode 55 .

[0053] The impregnated membrane 56 is an alkali-resistant and water-absorbent fiber product, such as a membrane made of PP (polypropylene), PE (polyethylene) and other materials. The impregnated membrane 56 is an alkali-resistant limiting material, which is used for the battery positive electrode 55. One side of the battery positive electrode 55 is attached to the separator 54, and the other side is attached to the impregnated membrane 56. When an oxidant is dripped onto the impregnated membrane 56, the impregnated membrane 56 can penetrate the oxidant into the entire battery positive electrode 55, so that the nickel hydroxide on the battery positive electrode 55 is oxidized into nickel oxyhydroxide.

[0054] Preferably, the positive electrode oxidant in the oxidant storage tank 2 includes oxygen, hydrogen peroxide, hypochlorous acid, and ozone.

[0055] Oxygen, hydrogen peroxide, hypochlorous acid and ozone are highly active as oxidants, are easy to prepare and have low costs.

[0056] Preferably, a drain port 58 is arranged at the bottom of the battery housing, a semi-permeable membrane 581 is arranged on the drain port 58 for only water molecules to pass through, and a drain valve 59 is connected to the drain port 58 .

[0057] A drain pipe 10 is arranged on the drain port 58, and a drain valve 59 is installed at the top of the drain pipe 10. The semipermeable membrane 581 has an ion blocking function, which can only allow water molecules to pass through, and other ions cannot pass through, thereby preventing the loss of alkaline electrolyte. The material of the semipermeable membrane 581 includes polyamide membrane and the like.

[0058] The total reaction of the battery body 5 will generate water, which can be discharged through the drain port 58 to ensure the concentration of the alkaline electrolyte in the battery body 5. The main purpose of the semipermeable membrane 581 is to discharge the water reacted in the battery system in time. Since the amount of water generated is very small, it does not need to be discharged by pressure. It only needs to use the function of the semipermeable membrane 581 to make the water penetrate to the outside. When the water penetrates to the outside, it will be evaporated in the air, and the water is discharged by using the concentration difference between the outside and the inside of the system.

[0059] The drain port 58 and the semipermeable membrane 581 thereon are arranged at the bottom of the battery body 5. The alkaline electrolyte in the battery body 5 has a certain weight and exerts a certain pressure on the membrane, which can make the water slowly penetrate to the outside. At the same time, the alkaline electrolyte is in an excessive state in the battery body 5, which is mainly stored in the diaphragm 54, the battery negative electrode 53, and the battery positive electrode 55, but part of it will be stored at the bottom of the battery body 5, and the battery system will produce water during the charging and discharging process, and this water will also accumulate at the bottom of the battery system, exerting pressure on the semipermeable membrane 581, so that the water can volatilize after penetrating through the semipermeable membrane 581.

[0060] Since the amount of water generated is very small, the alkaline electrolyte and water pressure can be used to make the water penetrate to the surface of the semipermeable membrane 581, and it will be evaporated in the air. The water is discharged by utilizing the concentration difference between the surface of the semipermeable membrane 581 and the inside of the battery body 5.

[0061] Preferably, two groups of battery bodies 5 are arranged, both groups of battery bodies 5 are electrically connected to the output conversion module 3, the hydrogen storage tank 1 is communicated with the two groups of battery bodies 5 respectively, and the oxidant storage tank 2 is communicated with the two groups of battery bodies 5 respectively.

[0062] There are two groups of battery bodies 5, which can play the role of one for backup and one for use. The two groups of battery bodies 5 are defined as battery A and battery B. When the power of battery A is reduced, the control system 4 can control the hydrogen storage tank 1 and the oxidant storage tank 2 to add hydrogen and oxidant to battery A for charging, and at the same time control the battery B to be electrically connected to the output conversion module 3 for stable power output.

[0063] Regulating valves 7 are arranged on the pipelines 6 connecting battery A and battery B with the hydrogen storage tank 1 and the oxidant storage tank 2. The control system 4 adjusts the connection status of battery A, battery B and the hydrogen storage tank 1 and the oxidant storage tank 2 by controlling the state of the regulating valves 7.

[0064] The control system 4 includes a valve control center, which collects the switching information of battery A and battery B of the output control module through the PLC program to control the opening and closing of the regulating valve 7 and the drain valve 59. When the battery B outputs power, the regulating valve 7 of the battery A is opened and the drain valve 59 is closed, and the battery A replenishes energy; when the battery A outputs power, the regulating valve 7 of the battery B is opened and the drain valve 59 is closed, and the battery B replenishes energy. The drain valves 59 of the two batteries are opened once every 10-20 cycles to drain water.

[0065] The working principle of the control system 4 is that the control system 4 is arranged with IC components. When the voltage of battery A is lower than the lower limit voltage, the circuit feeds back to the IC components, and the IC components issue a command in the form of a cylinder, and the regulating valve 7 of battery A is opened and the drain valve 59 is closed. At the same time, the voltage of battery A is monitored. When the voltage reaches the upper limit voltage, it is fed back to the IC components, and the IC issues a command to close the regulating valve 7 in the form of a cylinder. At this time, battery B is in the process of discharging, and the circuit monitors the voltage of battery B. When the voltage of battery B is lower than the lower limit voltage, the above-mentioned operation of battery A is repeated.

[0066] The battery system of the present invention is described in detail below according to the embodiments:

[0067] Embodiment 1,

[0068] Production of battery A and battery B:

[0069] When the battery negative electrode 53 is filled with hydrogen, 2M+H2=2MH;

[0070] When an oxidant is added to the positive electrode 55 of the battery, 2Ni(OH)2+H2O2=2NiOOH+2H2O;

[0071] The reaction to external discharge is:

[0072] Battery negative electrode 53, MH+OH － =H2O+M+e;

[0073] Battery positive electrode 55, NiOOH + H2O = Ni (OH) 2 + OH — e.

[0074] During the battery charging and discharging process, the hydroxide ions in the alkaline electrolyte always maintain their original amount. In essence, the added hydrogen reacts with the added oxidant to produce water.

[0075] When the battery is manufactured, the battery negative electrode 53 uses AB5 type hydrogen storage alloy as the active material. 12 grams of hydrogen storage alloy powder (D50 = 49 microns) is filled into a copper mesh and compacted at a pressure of 20 MPa to make a negative electrode sheet with a size of 50 mm * 200 mm * 0.55 mm.

[0076] The battery positive electrode 55 uses 10 grams of spherical nickel hydroxide as an active material, adds 5% cobaltous oxide as a conductive agent, fills it into foamed nickel, and compacts it at a pressure of 20 MPa to make a positive electrode sheet with a size of 50 mm*200 mm*0.6 mm.

[0077] The separator 54 between the battery positive electrode 55 and the battery negative electrode 53 is made of PP material, and the cutting size of the separator 54 is 52mm*205mm. The impregnation membrane 56 is made of PP material, and the cutting size is 52mm*205mm.

[0078] Battery Assembly:

[0079] The above materials are stacked in the order of impregnation membrane 56, positive electrode sheet, separator 54 and negative electrode sheet into the battery casing 51, wherein 5.0 g of 7 mol / L potassium hydroxide solution is dripped into the separator 54 as alkaline electrolyte after placing the separator 54 and before placing the negative electrode sheet, and then the battery casing 51 is sealed.

[0080] System Assembly:

[0081] The prepared battery A and battery B are installed in the battery system, and 5.0 ml of hydrogen peroxide is introduced into the permeable membrane 56 in the two batteries by opening the regulating valve 7 on the pipeline of the two battery bodies 5; the drain valve 59 is closed, and hydrogen is introduced into the two batteries respectively, and the internal gas pressure of the battery is maintained at 0.05 MPa for 15 minutes. The switching time of battery A and battery B is 0.2 hours to ensure that when one battery is not completely discharged, it is switched to the other battery for discharge, and then a stable voltage output of 1.2V is obtained under the condition that the external circuit is connected to a load after passing through the output conversion module 3.

[0082] Embodiment 2,

[0083] Production of battery A and battery B:

[0084] The battery negative electrode 53 uses carbon nanoparticles as the active material. 12 grams of carbon nanoparticles are filled into a copper mesh and compacted at a pressure of 20 MPa to form a negative electrode sheet with a size of 50 mm*200 mm*0.55 mm.

[0085] The battery positive electrode 55 uses 10 grams of spherical nickel hydroxide as an active material, adds 5% cobaltous oxide as a conductive agent, fills it into foamed nickel, and compacts it at a pressure of 20 MPa to make a positive electrode sheet with a size of 50 mm*200 mm*0.6 mm.

[0086] The separator 54 between the battery positive electrode 55 and the battery negative electrode 53 is made of PP material, and the cutting size of the separator 54 is 52mm*205mm. The impregnation membrane 56 is made of PP material, and the cutting size is 52mm*205mm.

[0087] Battery Assembly:

[0088] The above materials are stacked in the order of impregnation membrane 56, positive electrode sheet, separator 54 and negative electrode sheet into the battery casing 51, wherein 6.0 g of 7 mol / L potassium hydroxide solution is dripped into the separator 54 as alkaline electrolyte after placing the separator 54 and before placing the negative electrode sheet, and then the battery casing 51 is sealed.

[0089] System Assembly:

[0090] The prepared battery A and battery B are installed in the battery system, and 4.0 ml of hydrogen peroxide is introduced into the permeable membrane 56 in the two batteries by opening the regulating valve 7 on the pipeline of the two battery bodies 5; the drain valve 59 is closed, and hydrogen is introduced into the two batteries respectively, and the internal gas pressure of the battery is maintained at 0.05 MPa for 15 minutes. The switching time of battery A and battery B is 0.15 hours to ensure that when one battery is not completely discharged, it is switched to the other battery for discharge, and then a stable voltage output of 1.2V is obtained under the condition that the external circuit is connected to a load after passing through the output conversion module 3.

[0091] Embodiment 5,

[0092] Production of battery A and battery B:

[0093] The battery negative electrode 53 uses La-Y-Ni type hydrogen storage alloy as the active material. 12 grams of hydrogen storage alloy powder (D50=49 microns) is filled into a copper mesh and compacted at a pressure of 20 MPa to make a negative electrode sheet with a size of 50 mm*200 mm*0.55 mm.

[0094] The battery positive electrode 55 uses 10 grams of spherical nickel hydroxide as an active material, adds 5% cobaltous oxide as a conductive agent, fills it into foamed nickel, and compacts it at a pressure of 20 MPa to make a positive electrode sheet with a size of 50 mm*200 mm*0.6 mm.

[0095] The separator 54 between the battery positive electrode 55 and the battery negative electrode 53 is made of PP material, and the cutting size is 52mm*205mm. The impregnation membrane 56 is made of PP material, and the cutting size is 52mm*205mm.

[0096] Battery Assembly:

[0097] The above materials are stacked in the order of impregnation membrane 56, positive electrode sheet, separator 54 and negative electrode sheet into the battery casing 51, wherein 5.5 g of 7 mol / L potassium hydroxide solution is dripped into the separator 54 as alkaline electrolyte after placing the separator 54 and before placing the negative electrode sheet, and then the battery casing 51 is sealed.

[0098] System Assembly:

[0099] The prepared battery A and battery B are installed in the battery system, and 5.0 ml of hydrogen peroxide is introduced into the permeable membrane 56 in the two batteries by opening the regulating valve 7 on the pipeline of the two battery bodies 5; the drain valve 59 is closed, and hydrogen is introduced into the two batteries respectively, and the internal gas pressure of the battery is maintained at 0.05 MPa for 15 minutes. The switching time of battery A and battery B is 0.2 hours to ensure that when one battery is not completely discharged, it is switched to the other battery for discharge, and then a stable voltage output of 1.2V is obtained under the condition that the external circuit is connected to a load after passing through the output conversion module 3.

[0100] Embodiment 4,

[0101] Production of battery A and battery B:

[0102] The battery negative electrode 53 uses La-Mg-Ni type hydrogen storage alloy as the active material. 12 grams of hydrogen storage alloy powder (D50=49 microns) is filled into a copper mesh and compacted at a pressure of 20 MPa to form a negative electrode sheet with a size of 50 mm*200 mm*0.55 mm.

[0103] The battery positive electrode 55 uses 10 grams of spherical nickel hydroxide as an active material, adds 5% cobaltous oxide as a conductive agent, fills it into foamed nickel, and compacts it at a pressure of 20 MPa to make a positive electrode sheet with a size of 50 mm*200 mm*0.6 mm.

[0104] The separator 54 between the battery positive electrode 55 and the battery negative electrode 53 is made of PP material, and the cutting size is 52mm*205mm. The impregnation membrane 56 is made of PP material, and the cutting size is 52mm*205mm.

[0105] Battery Assembly:

[0106] The above materials are stacked in the order of impregnation membrane 56, positive electrode sheet, separator 54 and negative electrode sheet into the battery casing 51, wherein 6.5 g of 7 mol / L potassium hydroxide solution is dripped into the separator 54 as alkaline electrolyte after placing the separator 54 and before placing the negative electrode sheet, and then the battery casing 51 is sealed.

[0107] System Assembly:

[0108] The prepared battery A and battery B are installed in the battery system, and 5.5 ml of hydrogen peroxide is introduced into the permeable membrane 56 in the two batteries by opening the regulating valve 7 on the pipeline of the two battery bodies 5; the drain valve 59 is closed, and hydrogen is introduced into the two batteries respectively, and the internal gas pressure of the battery is maintained at 0.05 MPa for 15 minutes. The switching time of battery A and battery B is 0.2 hours to ensure that when one battery is not completely discharged, it is switched to the other battery for discharge, and then a stable voltage output of 1.2V is obtained under the condition that the external circuit is connected to a load after passing through the output conversion module 3.

[0109] Embodiment 5,

[0110] Production of battery A and battery B:

[0111] The battery negative electrode 53 uses AB5 type hydrogen storage alloy as the active material. 12 grams of hydrogen storage alloy powder (D50=49 microns) is filled into a copper mesh and compacted at a pressure of 20 MPa to make a negative electrode sheet with a size of 50 mm*200 mm*0.55 mm.

[0112] The battery positive electrode 55 uses 10 grams of cobalt-coated spherical nickel hydroxide as an active material, which is filled into foamed nickel and compacted at a pressure of 20 MPa to form a positive electrode sheet with a size of 50 mm*200 mm*0.6 mm.

[0113] The separator 54 between the battery positive electrode 55 and the battery negative electrode 53 is made of PP material, and the cutting size of the separator 54 is 52mm*205mm. The impregnation membrane 56 is made of PP material, and the cutting size is 52mm*205mm.

[0114] Battery Assembly:

[0115] The above materials are stacked in the order of impregnation membrane 56, positive electrode sheet, separator 54 and negative electrode sheet into the battery casing 51, wherein 5.0 g of 7 mol / L potassium hydroxide solution is dripped into the separator 54 as alkaline electrolyte after placing the separator 54 and before placing the negative electrode sheet, and then the battery casing 51 is sealed.

[0116] System Assembly:

[0117] The prepared battery A and battery B are installed in the battery system, and 5.0 ml of hypochlorous acid is introduced into the permeable membrane 56 in the two batteries respectively by opening the regulating valve 7 on the pipeline of the two battery bodies 5; the drain valve 59 is closed, and hydrogen is introduced into the two batteries respectively, and the internal gas pressure of the battery is maintained at 0.05 MPa for 15 minutes. The switching time of battery A and battery B is 0.2 hours to ensure that when one battery is not completely discharged, it is switched to the other battery for discharge, and then a stable voltage output of 1.2 V is obtained under the condition that the external circuit is connected to a load after passing through the output conversion module 3.

[0118] Embodiment 6,

[0119] Production of battery A and battery B:

[0120] The battery negative electrode 53 uses AB5 type hydrogen storage alloy as the active material. 12 grams of hydrogen storage alloy powder (D50=49 microns) is filled into a copper mesh and compacted at a pressure of 20 MPa to make a negative electrode sheet with a size of 50 mm*200 mm*0.55 mm.

[0121] The battery positive electrode 55 uses 10 grams of cobalt-coated spherical nickel hydroxide as an active material, which is filled into foamed nickel and compacted at a pressure of 20 MPa to form a positive electrode sheet with a size of 50 mm*200 mm*0.6 mm.

[0122] The separator 54 between the battery positive electrode 55 and the battery negative electrode 53 is made of PP material, and the cutting size of the separator 54 is 52mm*205mm. The impregnation membrane 56 is made of PP material, and the cutting size is 52mm*205mm.

[0123] Battery Assembly:

[0124] The above materials are stacked in the order of impregnation membrane 56, positive electrode sheet, separator 54 and negative electrode sheet into the battery casing 51, wherein 5.0 g of 7 mol / L potassium hydroxide solution is dripped into the separator 54 as alkaline electrolyte after placing the separator 54 and before placing the negative electrode sheet, and then the battery casing 51 is sealed.

[0125] System Assembly:

[0126] The prepared battery A and battery B are installed in the battery system, and 5.0 ml of ozone is introduced into the permeable membrane 56 in the two batteries by opening the regulating valve 7 on the pipeline of the two battery bodies 5; the drain valve 59 is closed, and hydrogen is introduced into the two batteries respectively, and the internal gas pressure of the battery is maintained at 0.05 MPa for 15 minutes. The switching time of battery A and battery B is 0.2 hours to ensure that when one battery is not completely discharged, it is switched to the other battery for discharge, and then a stable voltage output of 1.2 V is obtained under the condition that the external circuit is connected to a load after passing through the output conversion module 3.

[0127] Embodiment 7,

[0128] Production of battery A and battery B:

[0129] The battery negative electrode 53 uses AB5 type hydrogen storage alloy as the active material. 12 grams of hydrogen storage alloy powder (D50=49 microns) is filled into a copper mesh and compacted at a pressure of 20 MPa to make a negative electrode sheet with a size of 50 mm*200 mm*0.55 mm.

[0130] The battery positive electrode 55 uses a metal nickel sheet (only for conductivity, other metal sheets and carbon conductive sheets can also play the same role), with a size of 50mm*200mm*0.08mm.

[0131] The separator 54 between the battery positive electrode 55 and the battery negative electrode 53 is made of PP material, and the cutting size of the separator 54 is 52mm*205mm. The impregnation membrane 56 is made of PP material, and the cutting size is 52mm*205mm.

[0132] Battery Assembly:

[0133] The above materials are stacked in the order of impregnation membrane 56, positive electrode sheet, separator 54 and negative electrode sheet into the battery casing 51, wherein 5.0 g of 7 mol / L potassium hydroxide solution is dripped into the separator 54 as alkaline electrolyte after placing the separator 54 and before placing the negative electrode sheet, and then the battery casing 51 is sealed.

[0134] System Assembly:

[0135] The prepared battery A and battery B are installed in the battery system, and 5.0 ml of hydrogen peroxide is introduced into the permeable membrane 56 in the two batteries by opening the regulating valve 7 on the pipeline of the two battery bodies 5; the drain valve 59 is closed, and hydrogen is introduced into the two batteries respectively, and the internal gas pressure of the battery is maintained at 0.05 MPa for 15 minutes. The switching time of battery A and battery B is 0.2 hours to ensure that when one battery is not completely discharged, it is switched to the other battery for discharge, and then a stable voltage output of 1.2V is obtained under the condition that the external circuit is connected to a load after passing through the output conversion module 3.

[0136] Embodiment 8,

[0137] Production of battery A and battery B:

[0138] The battery negative electrode 53 uses AB5 type hydrogen storage alloy as the active material. 12 grams of hydrogen storage alloy powder (D50=49 microns) is filled into a copper mesh and compacted at a pressure of 20 MPa to make a negative electrode sheet with a size of 50 mm*200 mm*0.55 mm.

[0139] The battery positive electrode 55 uses 10 grams of spherical nickel hydroxide as an active material, adds 5% cobaltous oxide as a conductive agent, fills it into foamed nickel, and compacts it at a pressure of 20 MPa to make a positive electrode sheet with a size of 50 mm*200 mm*0.6 mm.

[0140] The separator 54 between the battery positive electrode 55 and the battery negative electrode 53 is made of PP material, and the cutting size is 52mm*205mm. The impregnation membrane 56 is made of PP material, and the cutting size is 52mm*205mm.

[0141] Battery Assembly:

[0142] The above materials are stacked in the order of impregnation membrane 56, positive electrode sheet, diaphragm 54 and negative electrode sheet into the battery casing 51, wherein 5.0 g of 7 mol / L potassium hydroxide solution is dripped into the diaphragm 54 as alkaline electrolyte after the diaphragm 54 is placed and before the negative electrode sheet is placed, and then the battery casing 51 is sealed. Different from Example 1, a double-layer diaphragm 54 is used, and PVA gel is coated in the middle of the double-layer diaphragm 54.

[0143] System Assembly:

[0144] The prepared battery A and battery B are installed in the battery system, and 5.0 ml of hydrogen peroxide is introduced into the permeable membrane 56 in the two batteries by opening the regulating valve 7 on the pipeline of the two battery bodies 5; the drain valve 59 is closed, and hydrogen is introduced into the two batteries respectively, and the internal gas pressure of the battery is maintained at 0.05 MPa for 15 minutes. The switching time of battery A and battery B is 0.2 hours to ensure that when one battery is not completely discharged, it is switched to the other battery for discharge, and then a stable voltage output of 1.2V is obtained under the condition that the external circuit is connected to a load after passing through the output conversion module 3.

[0145] Comparative Example 1

[0146] 16g of ternary positive electrode lithium battery material was mixed with 1g of conductive carbon, 1g of PVDF and 15g of NMP solution, stirred and evenly coated on aluminum foil; 17g of graphite was mixed with 1g of conductive carbon, 0.2g of CMC and 15g of water, stirred and evenly coated on copper foil, and cegard 25 diaphragm was used, wound and loaded into a steel shell, and 18g of 1mo / L lithium hexafluorophosphate solution was injected, sealed and formed to obtain a lithium-ion battery.

[0147] Comparative Example 2

[0148] The battery negative electrode uses AB5 type hydrogen storage alloy as the active material. 12 grams of hydrogen storage alloy powder (D50 = 49 microns) is filled into a copper mesh and compacted at a pressure of 20 MPa to make a negative electrode sheet with a size of 50 mm * 200 mm * 0.55 mm.

[0149] The diaphragm is made of PP material and has a size of 52mm*520mm*0.018mm.

[0150] The positive electrode of the battery uses 10 grams of spherical nickel hydroxide as the active material, adds 5% cobaltous oxide as the conductive agent, fills it into the foamed nickel, and compacts it at a pressure of 20Mpa to make a positive electrode sheet with a size of 50mm*160mm*0.65mm.

[0151] The above components were wound and assembled into a battery casing, and 5.0 g of a 7 mol / L potassium hydroxide solution was injected, and the casing was sealed to obtain a nickel-hydrogen battery.

[0152] Comparative Example 5

[0153] 0.02g of platinum, 0.2g of yttrium oxide rod, and an electrolyte diaphragm (a porous diaphragm made of insulating materials such as asbestos film, silicon carbide SiC film, and lithium aluminate (LiAlO5) film) are pressed into a bipolar plate, and then the bipolar plates are assembled to obtain a fuel cell.

[0154] The performance and cost of the above comparative examples and embodiments are shown in the following table:

[0155]

[0156]

[0157] From the above data, we can see that the use of a new type of hydrogen-powered battery system significantly reduces the cost of the original fuel cell; using carbon nanotubes as the negative electrode will reduce the energy density; using a double-layer diaphragm and an energy system coated with PVA gel will significantly increase the energy density. The reason is that the diaphragm has a good isolation effect, the hydrogen at the negative electrode of the battery will not reach the positive electrode of the battery, and will not reduce the positive electrode of the battery; the oxidant at the positive electrode of the battery will not reach the negative electrode of the battery, and will not oxidize the negative electrode of the battery, so the positive and negative electrodes of the battery can exert their maximum capacity.

[0158] In summary, an embodiment of the present invention provides a hydrogen power battery system, wherein the negative electrode of the battery is formed by a negative electrode base band and a hydrogen storage material, and an alkaline electrolyte is filled in the battery housing. The hydrogen storage material can absorb hydrogen at room temperature to form an MH alloy, and the alloy has an electric potential of -0.8V in an alkaline solution. During discharge, the oxidant has a positive electrode potential in an alkaline solution, so that the battery body transmits electricity to the outside through an output conversion module, and the control system controls the hydrogen storage tank and the oxidant storage tank to transport hydrogen and oxidant into the battery body, so that the battery is in a charged state and can continuously supply power to the outside. The battery is continuously supplied with power by adding fuel, which omits the charging time. At the same time, the battery does not require precious metals as catalysts, thereby reducing the application cost of the battery in new energy vehicles.

[0159] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A hydrogen powered battery system, characterized in that: The invention comprises a battery body, a hydrogen storage tank, an oxidant storage tank, an output conversion module and a control system, wherein the control system is respectively connected to the hydrogen storage tank, the oxidant storage tank and the output conversion module by signals, the output conversion module is electrically connected to the battery body, and an output positive electrode and an output negative electrode for transmitting electricity to the outside are arranged on the output conversion module, the battery body comprises a battery shell, a battery positive electrode and a battery negative electrode, the battery negative electrode comprises a negative electrode base band and a hydrogen storage material arranged on the negative electrode base band, the battery positive electrode comprises a positive electrode base band and a conductive sheet arranged on the positive electrode base band, the battery positive electrode and the battery negative electrode are separated by a diaphragm, and the battery shell is filled with The battery is filled with alkaline electrolyte, the hydrogen storage tank is connected to the negative electrode of the battery through a pipeline, the oxidant storage tank is connected to the positive electrode of the battery through a pipeline, the diaphragm is arranged in two layers, a gel is arranged between the two layers of the diaphragm, and the gel is polyisopropyl alcohol gel. Nickel hydroxide and a conductive agent are also arranged on the conductive sheet, and the nickel hydroxide and the conductive agent are fixed on the conductive sheet by a binder. The concentration of the alkaline electrolyte is 5-11 mol / L, and a permeable membrane is also arranged on the side of the positive electrode of the battery away from the negative electrode of the battery, and the permeable membrane is arranged in contact with the positive electrode of the battery. The positive electrode oxidant in the oxidant storage tank includes oxygen, hydrogen peroxide, hypochlorous acid, and ozone.

2. The hydrogen power battery system according to claim 1, characterized in that: The hydrogen storage material includes a hydrogen storage alloy.

3. The hydrogen powered battery system according to claim 1, characterized in that: The conductive agent includes conductive carbon, graphite, cobaltous oxide and nickel powder.

4. The hydrogen power battery system according to any one of claims 1 to 3, characterized in that: A drain port is also arranged at the bottom of the battery housing, a semi-permeable membrane for only water molecules to pass through is arranged on the drain port, and a drain valve is connected to the drain port.

5. The hydrogen power battery system according to any one of claims 1 to 3, characterized in that: The battery bodies are arranged in two groups, and the two groups of battery bodies are electrically connected to the output conversion module. The hydrogen storage tank is communicated with the two groups of battery bodies respectively, and the oxidant storage tank is communicated with the two groups of battery bodies respectively.

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