Battery device

Abstract

The present invention relates to a battery device, and relates to the field of new energy technology, and is used to solve the technical problems of low efficiency and environmental safety in the prior art. The battery device of the present invention includes an electrochemical reactor and a battery, and uses iodine as the raw material of the battery device. An oxidation reaction occurs in the oxidation chamber of the electrochemical reactor, and iodic acid is oxidized to generate periodic acid. A reduction reaction occurs in the reduction chamber, and elemental iodine is reduced to generate hydroiodic acid. The battery is in the process of discharging, which is the reverse reaction of the above reaction. The starting point and end point of the reaction can be controlled by the potential value in the whole process. The device can be used to make large and super-large power storage devices as needed, and can be used for power peak regulation, and the unusable electricity can be stored to meet the peak power demand; elemental iodine is a high-value raw material, and the battery can be recycled after being scrapped, without economic value loss or hazardous waste generation, which is beneficial to social environmental protection.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, and in particular to a storage battery device. Background Art

[0002] Storage batteries are widely used in industry and life, including nickel-metal hydride batteries, lithium-ion batteries, all-solid-state lithium-ion batteries, fuel cells and lithium-air batteries. Existing battery technologies have their advantages and disadvantages, but large and ultra-large storage devices are limited by technology and are greatly affected by ambient temperature, so their efficiency is not high. In particular, the disposal of batteries is a major social and environmental issue. Summary of the invention

[0003] The present invention provides a storage battery device for solving the technical problems of low efficiency and environmental safety in the prior art.

[0004] According to a first aspect of the present invention, a battery device of the present invention comprises an electrochemical reactor and a battery;

[0005] The electrochemical reactor comprises an oxidation chamber and a reduction chamber, wherein the reduction chamber is connected to a first circulation box for carrying hydroiodic acid, and the oxidation chamber is connected to a second circulation box for carrying periodic acid;

[0006] When power is supplied to the electrochemical reactor, an oxidation reaction occurs in the oxidation chamber to oxidize iodic acid into periodic acid; a reduction reaction occurs in the reduction chamber to reduce elemental iodine into hydroiodic acid;

[0007] The battery comprises a periodic acid chamber and a hydroiodic acid chamber, the hydroiodic acid chamber is connected to the first circulation box, and the periodic acid chamber is connected to the second circulation box; an ion exchange membrane is arranged between the periodic acid chamber and the hydroiodic acid chamber;

[0008] When the storage battery is connected to a load and discharged, the iodine ions in the hydroiodic acid chamber lose electrons to generate elemental iodine, and hydrogen ions are generated at the same time. The hydrogen ions pass through the ion exchange membrane and enter the periodic acid chamber; the periodate ions in the periodic acid chamber gain electrons to generate iodate ions, and hydroxide ions are generated at the same time, which combine with the hydrogen ions entering the periodic acid chamber to form water molecules.

[0009] In one embodiment, the oxidation chamber is defined by the reactor cation membrane and the anode plate, and the reduction chamber is defined by the reactor cation membrane and the cathode plate;

[0010] Wherein, the anode plate and the cathode plate are respectively arranged on both sides of the reactor cation membrane.

[0011] In one embodiment, the cathode plate is a hydrogen suppression electrode plate.

[0012] In one embodiment, the electrochemical reactor is respectively provided with a reactor input port and a reactor output port, the reactor input port includes an oxidation chamber input port connected to the output end of the second circulation box and a reduction chamber input port connected to the output end of the first circulation box; the reactor output port includes an oxidation chamber output port connected to the input end of the second circulation box and a reduction chamber output port connected to the input end of the first circulation box.

[0013] In one embodiment, the first output end of the first circulation box is connected to the reduction chamber input port via a first circulation pump, and the first input port of the first circulation box is connected to the reduction chamber output port.

[0014] In one embodiment, the first output port of the second circulation box is connected to the input port of the oxidation chamber via a second circulation pump, and the first input port of the second circulation box is connected to the output port of the oxidation chamber.

[0015] In one embodiment, the periodic acid chamber is defined by a positive plate and a battery cation membrane, and the hydroiodic acid chamber is defined by a negative plate and the battery cation membrane;

[0016] Wherein, the positive electrode plate and the negative electrode plate are respectively arranged on both sides of the battery cation membrane.

[0017] In one embodiment, the battery is provided with a battery input port and a battery output port, the battery input port includes a periodic acid chamber input port connected to the output end of the second circulation box and a hydroiodic acid chamber input port connected to the output end of the first circulation box, and the battery output port includes a periodic acid chamber output port connected to the input end of the second circulation box and a hydroiodic acid chamber output port connected to the input end of the first circulation box.

[0018] In one embodiment, the second output port of the first circulation box is connected to the input port of the hydroiodic acid chamber via a third circulation pump, and the second input port of the first circulation box is connected to the output port of the hydroiodic acid chamber.

[0019] In one embodiment, the second output port of the second circulation box is connected to the input port of the oxidation chamber via a fourth circulation pump, and the second input port of the second circulation box is connected to the output port of the periodic acid chamber.

[0020] Compared with the prior art, the advantages of the present invention are: iodine is used as the raw material of the battery device, an oxidation reaction occurs in the oxidation chamber of the electrochemical reactor, iodic acid is oxidized to generate periodic acid, and a reduction reaction occurs in the reduction chamber, iodine is reduced to generate hydroiodic acid, and the battery is a discharge process, which is the reverse reaction of the above reaction; the whole process controls the starting point and end point of charging by the potential value. The device can be made into large and super-large power storage devices according to needs, and can be used for power peak regulation, storing unusable electricity to meet peak power consumption; the power storage device does not have the problem of being affected by ambient temperature, and elemental iodine is a high-value raw material. The battery can be recycled after being scrapped, without economic value loss or hazardous waste generation, which is beneficial to social environmental protection, and the battery will not explode. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0022] Figure 1 is a schematic structural diagram of a battery device in an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A schematic diagram of the structure of the electrochemical reactor shown;

[0024] Figure 3 Schematic diagram of the structure of the battery in the embodiment of the present invention.

[0025] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale.

[0026] Reference numerals:

[0027] 1-first circulation box; 2-electrochemical reactor; 3-battery; 4-second circulation box; 5-first circulation pump;

[0028] 6-second circulation pump; 7-third circulation pump; 8-fourth circulation pump; 9-load; 10-power supply;

[0029] 21-reactor positive membrane; 22-anode plate; 23-cathode plate;

[0030] 211- oxidation chamber; 212- reduction chamber;

[0031] 31-battery cation film; 33-positive plate; 32-negative plate;

[0032] 311-Periodic acid room; 312-Hydroiodic acid room. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] like Figure 1 As shown, the present invention provides a battery device, which includes an electrochemical reactor 2 and a battery 3. The electrochemical reactor 2 includes an oxidation chamber 211 and a reduction chamber 212, the reduction chamber 212 is connected to a first circulation box 1 for carrying hydroiodic acid, and the oxidation chamber 211 is connected to a second circulation box 4 for carrying periodic acid.

[0035] When the power source 10 supplies power to the electrochemical reactor 2, an oxidation reaction occurs in the oxidation chamber 211, and the iodate ions lose electrons to generate periodate ions; and the iodine in the reduction chamber 212 gains electrons to undergo a reduction reaction to generate hydroiodic acid.

[0036] Furthermore, the reaction end point is controlled by the potential value during the reaction process, that is, the potential values ​​in the first hydrogen circulation box 1 and the second hydrogen circulation box 4 are measured respectively to control the charging end point and the charging starting point.

[0037] The battery 3 carries an electrolyte (or electrolyte solution). The electrolyte (or electrolyte solution) of the present invention has a high concentration, so the battery 3 has the characteristics of high energy density and relatively small volume.

[0038] Among them, the electrolyte is periodic acid and hydroiodic acid. Specifically, the battery 3 includes a periodic acid chamber 311 and a hydroiodic acid chamber 312, the hydroiodic acid chamber 312 is connected to the first circulation box 1, and the periodic acid chamber 311 is connected to the second circulation box 4. An ion exchange membrane is arranged between the periodic acid chamber 311 and the hydroiodic acid chamber 312, and specifically, the ion exchange membrane is a battery positive membrane 31. When the battery 3 is connected to the load 9 for discharge, electrons move from the negative electrode to the positive electrode through the external load connection line, and the iodine ions in the hydroiodic acid chamber 312 lose electrons to generate elemental iodine, and hydrogen ions are generated at the same time, and the hydrogen ions enter the periodic acid chamber 311 through the battery positive membrane 31; the periodate ions in the periodic acid chamber 311 obtain electrons to generate iodate ions, and at the same time, hydroxide ions are generated, which are combined with the hydrogen ions entering the periodic acid chamber 311 to form water molecules.

[0039] In one embodiment, Figure 2 As shown, the oxidation chamber 211 is defined by the reactor cation membrane 21 and the anode plate 22, and the reduction chamber 212 is defined by the reactor cation membrane 21 and the cathode plate 23; wherein the anode plate 22 and the cathode plate 23 are respectively arranged on both sides of the reactor cation membrane 21.

[0040] Furthermore, the cathode plate 23 is a hydrogen suppression electrode plate, which can suppress the release of hydrogen.

[0041] Specifically, the process of the electrochemical reactor 2 performing an electrochemical reaction to obtain hydroiodic acid and iodic acid is as follows:

[0042] When the electrochemical reactor 2 is connected to the DC power supply 10, an oxidation-reduction reaction occurs in the electrochemical reactor 2, and the iodine in the reduction chamber 212 thereof obtains electrons to undergo a reduction reaction. Since the cathode plate 23 is a hydrogen-suppressing electrode plate, the iodine is first reduced to iodide ions. The iodate ions in the oxidation chamber 211 lose electrons to generate periodate ions, and corresponding hydrogen ions are generated at the same time. The hydrogen ions, under the action of the electric field, pass through the reactor cation membrane 21 and combine with the iodine ions in the reduction chamber 212 to form hydroiodic acid.

[0043] The reaction formula in the oxidation chamber 211 is: IO3 - -2e+H2O=IO4 - +2H + ;

[0044] The reaction formula of the reduction chamber 212 is: I2+2e+2H + =2HI.

[0045] In one embodiment, the electrochemical reactor 2 is provided with a reactor input port and a reactor output port, the reactor input port includes an oxidation chamber input port connected to the output end of the second circulation box 4 and a reduction chamber input port connected to the output end of the first circulation box 1; the reactor output port includes an oxidation chamber output port connected to the input end of the second circulation box 4 and a reduction chamber output port connected to the input end of the first circulation box 1. Figure 2 The arrows on the left side indicate the directions in which the liquid flows into and out of the oxidation chamber 211 , respectively, and the arrows on the right side indicate the directions in which the liquid flows into and out of the reduction chamber 212 , respectively.

[0046] Specifically, the first output end of the first circulation box 1 is connected to the reduction chamber input port through the first circulation pump 5, and the first input port of the first circulation box 1 is connected to the reduction chamber output port. The first output port of the second circulation box 4 is connected to the oxidation chamber input port through the second circulation pump 6, and the first input port of the second circulation box 4 is connected to the oxidation chamber output port.

[0047] In one embodiment, Figure 3 As shown, the periodic acid chamber 311 is defined by the positive plate 33 and the battery cation membrane 31, and the hydroiodic acid chamber 312 is defined by the negative plate 32 and the battery cation membrane 31; wherein the positive plate 33 and the negative plate 32 are respectively arranged on both sides of the battery cation membrane 31.

[0048] Specifically, the process of discharging the battery 3 is as follows:

[0049] Electrons move from the negative electrode to the positive electrode through the external load, and the iodine ions in the hydroiodic acid chamber 312 lose electrons to generate elemental iodine, and at the same time, hydrogen ions are generated. The hydrogen ions pass through the battery cation membrane 31 and enter the periodic acid chamber 311; the iodine ions in the periodic acid chamber 311 gain electrons to generate elemental iodine, and at the same time, hydroxide ions are generated, which combine with the hydrogen ions that pass through the battery cation membrane 31 to form water molecules.

[0050] The reaction formula in the periodic acid chamber 311 is: IO4 - +2H + +2e=IO3 - +H2O;

[0051] The reaction formula of the hydroiodic acid chamber 312 is: 2HI-2e=I2+2H + .

[0052] In addition, the battery 3 is provided with a battery input port and a battery output port, the battery input port includes a periodic acid chamber input port connected to the output end of the second circulation box 4 and a hydroiodic acid chamber input port connected to the output end of the first circulation box 1, and the battery output port includes a periodic acid chamber output port connected to the input end of the second circulation box 4 and a hydroiodic acid chamber output port connected to the input end of the first circulation box 1. Figure 3 The arrows on the left side of the figure respectively indicate the directions in which the liquid flows into and out of the hydroiodic acid chamber 312 , and the arrows on the right side of the figure respectively indicate the directions in which the liquid flows into and out of the periodic acid chamber 311 .

[0053] Further, the second output port of the first circulation box 1 is connected to the input port of the hydroiodic acid chamber through the third circulation pump 7, and the second input port of the first circulation box 1 is connected to the output port of the hydroiodic acid chamber. The second output port of the second circulation box 4 is connected to the input port of the oxidation chamber through the fourth circulation pump 8, and the second input port of the second circulation box 4 is connected to the output port of the periodic acid chamber.

[0054] The first circulation pump 5 , the second circulation pump 6 , the third circulation pump 7 and the first circulation pump 5 are all used to enhance the fluidity of the liquid between two connected components.

[0055] In addition, the battery device of the present invention can be composed of multiple groups, and the multiple groups of battery devices can be used in series to obtain the required current.

[0056] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized in that: It comprises an electrochemical reactor (2) and a storage battery (3); The electrochemical reactor (2) comprises an oxidation chamber (211) and a reduction chamber (212), wherein the reduction chamber (212) is connected to a first circulation box (1) for carrying hydroiodic acid, and the oxidation chamber (211) is connected to a second circulation box (4) for carrying periodic acid; When power is supplied to the electrochemical reactor (2), an oxidation reaction occurs in the oxidation chamber (211) to oxidize iodic acid into periodic acid; a reduction reaction occurs in the reduction chamber (212) to reduce elemental iodine into hydroiodic acid; The battery (3) comprises a periodic acid chamber (311) and a hydroiodic acid chamber (312), wherein the hydroiodic acid chamber (312) is used to be connected to the first circulation box (1), and the periodic acid chamber (311) is connected to the second circulation box (4); an ion exchange membrane is provided between the periodic acid chamber (311) and the hydroiodic acid chamber (312); the ion exchange membrane is a battery cation membrane (31); When the storage battery (3) is connected to the load (9) for discharge, the iodine ions in the hydroiodic acid chamber (312) lose electrons to generate elemental iodine, and at the same time generate hydrogen ions, which pass through the ion exchange membrane and enter the periodic acid chamber (311); the periodate ions in the periodic acid chamber (311) gain electrons to generate iodate ions, and at the same time generate hydroxide ions, which combine with the hydrogen ions entering the periodic acid chamber (311) to form water molecules; The reaction formula in the periodic acid chamber (311) is: IO4 - +2H + +2e=IO3 - +H2O; The reaction formula of the hydroiodic acid chamber (312) is: 2HI-2e=I2+2H + ; respectively measuring the potential values ​​in the first circulation box (1) and the second circulation box (4) to control the charging end point and the charging start point; The oxidation chamber (211) is defined by the reactor cation membrane (21) and the anode plate (22), and the reduction chamber (212) is defined by the reactor cation membrane (21) and the cathode plate (23); Wherein, the anode plate (22) and the cathode plate (23) are respectively arranged on both sides of the reactor cation membrane (21); The cathode plate (23) is a hydrogen suppression electrode plate; The reaction formula in the oxidation chamber (211) is: IO3 - -2e+H2O=IO4 - +2H + ; The reaction formula of the reduction chamber (212) is: I2+2e+2H + =2HI; The electrochemical reactor (2) is provided with a reactor input port and a reactor output port, respectively, wherein the reactor input port comprises an oxidation chamber input port connected to the output end of the second circulation box (4) and a reduction chamber input port connected to the output end of the first circulation box (1); The reactor output port comprises an oxidation chamber output port connected to the input end of the second circulation box (4) and a reduction chamber output port connected to the input end of the first circulation box (1); The battery (3) is provided with a battery input port and a battery output port, the battery input port comprises a periodic acid chamber input port connected to the output end of the second circulation box (4) and a hydroiodic acid chamber input port connected to the output end of the first circulation box (1), and the battery output port comprises a periodic acid chamber output port connected to the input end of the second circulation box (4) and a hydroiodic acid chamber output port connected to the input end of the first circulation box (1).

2. The battery device according to claim 1, characterized in that: The first output end of the first circulation box (1) is connected to the reduction chamber input port via a first circulation pump (5), and the first input port of the first circulation box (1) is connected to the reduction chamber output port.

3. The battery device according to claim 2, characterized in that: The first output port of the second circulation box (4) is connected to the input port of the oxidation chamber via a second circulation pump (6), and the first input port of the second circulation box (4) is connected to the output port of the oxidation chamber.

4. The battery device according to claim 1, characterized in that: The periodic acid chamber (311) is defined by the positive electrode plate (33) and the battery cation membrane (31), and the hydroiodic acid chamber (312) is defined by the negative electrode plate (32) and the battery cation membrane (31); The positive electrode plate (33) and the negative electrode plate (32) are respectively arranged on both sides of the battery cation membrane (31).

5. The battery device according to claim 1, characterized in that: The second output port of the first circulation box (1) is connected to the input port of the hydroiodic acid chamber via a third circulation pump (7), and the second input port of the first circulation box (1) is connected to the output port of the hydroiodic acid chamber.

6. The battery device according to claim 1, characterized in that: The second output port of the second circulation box (4) is connected to the input port of the oxidation chamber via a fourth circulation pump (8), and the second input port of the second circulation box (4) is connected to the output port of the periodic acid chamber.

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