CN214477615U - Cylindrical low-voltage nickel-hydrogen battery - Google Patents
Cylindrical low-voltage nickel-hydrogen battery Download PDFInfo
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- CN214477615U CN214477615U CN202120795174.7U CN202120795174U CN214477615U CN 214477615 U CN214477615 U CN 214477615U CN 202120795174 U CN202120795174 U CN 202120795174U CN 214477615 U CN214477615 U CN 214477615U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a cylindrical low pressure hydrogen-nickel battery, including casing, cap, the inside central authorities of casing are equipped with hydrogen storage material pipe, hydrogen storage material pipe is wrapped up by electric core, lower extreme and casing contact, the casing is the power negative pole, the cap is the power positive pole. The technology solves the problems of high-pressure hydrogen storage, large volume and safety of the hydrogen energy battery, and simultaneously realizes a battery structure which is easy to package, compact, high in heat conduction, long in service life, low in cost and simple and convenient in process.
Description
Technical Field
The utility model relates to a chemical power supply, concretely relates to cylindrical low pressure hydrogen-nickel battery.
Background
The nickel-metal hydride battery is a storage battery with a positive electrode of nickel hydroxide and a negative electrode of a hydrogen storage material, has the characteristics of high volume energy density, high mass specific power, high safety, easiness in large-scale use and management, wide working temperature range (-50-70 ℃), environmental friendliness and the like, and is widely applied to strategic industries of energy conservation, new energy automobiles, wind-light energy storage and the like. At present, the global total sales of hybrid electric vehicles adopting high-specific power nickel-hydrogen batteries exceeds 2000 thousands, and far exceeds the sum of the sales of pure electric vehicles adopting lithium ion batteries and plug-in hybrid electric vehicles. Fuel cell vehicles employing high specific power nickel-metal hydride batteries have also been introduced into the market and are rapidly causing booming. Meanwhile, the nickel-metal hydride battery with high energy density is beginning to show strong competitiveness in the fixed energy storage fields of uninterruptible power supplies, wind-solar power generation, smart power grids and the like. However, the conventional nickel-metal hydride battery technology still has the disadvantages of short deep discharge cycle life (500-1000 times), easy failure in discharge state and the like. The nickel-hydrogen battery is a kind of accumulator with positive electrode of nickel hydroxide and negative electrode of hydrogen, and has the advantages of long service life, overcharge and over discharge resistance, etc., but it has the disadvantages of small volumetric specific energy, high working pressure (41-83 atm), high cost and poor safety.
In summary, if the above-mentioned disadvantages of nickel-metal hydride batteries and hydrogen energy batteries can be solved, the development of the high specific energy and long life nickel-metal hydride battery technology will be greatly promoted.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned prior art, the utility model provides a cylindrical low pressure hydrogen-nickel battery does not have high-pressure hydrogen storage tank, and is with low costs, and the simple and convenient battery structure of technology realizes easily encapsulating, compactization, high heat conduction's purpose simultaneously.
The utility model adopts the following technical proposal:
the utility model provides a cylindrical low pressure hydrogen nickel battery, includes the casing, the cap, the inside central authorities of casing are equipped with hydrogen storage material pipe, hydrogen storage material pipe is wrapped up by electric core, and the casing is the power negative pole, the cap is the power positive pole.
Preferably, the hydrogen storage material pipe comprises a cylindrical cavity formed by carbon paper, hydrogen storage material powder is filled in the cavity, and the carbon paper is wrapped with a breathable film to prevent the electrolyte from influencing the hydrogen storage material powder. Can absorb hydrogen when charging, release hydrogen when discharging for pressure control in the casing is in 0.5 ~ 1.0 MPa's range, and the pressure value obviously reduces, and the safety in utilization is higher.
Preferably, the hydrogen storage material pipe comprises a metal pipe, hydrogen storage material powder is filled in the metal pipe, a ventilation plug is arranged at an opening at the upper end of the metal pipe, the ventilation plug comprises a gasket, and carbon paper and a ventilation film are sequentially arranged on the gasket. The metal tube can conduct heat and make the structure more stable.
Preferably, the breathable film is made of a waterproof, oxygen-proof and hydrogen-permeable material, hydrogen can enter the breathable film, and impurities such as oxygen, water and the like cannot enter the breathable film.
Preferably, the battery cell comprises a diaphragm, the inner side of the diaphragm is wrapped by a negative electrode catalyst layer, the outer side of the diaphragm is wrapped by a positive plate, the diaphragm is in contact with the electrolyte, and hydrogen evolution/hydrogen elimination electrochemical reaction is generated during charging/discharging.
Preferably, the positive plate is connected with a cap, the cap is arranged on the shell, and the positive plate and the cap are insulated. The cap is insulated from the shell by using the glue seal, so that short circuit is avoided, and hydrogen leakage is prevented.
Preferably, the hydrogen redox catalyst is coated on the negative electrode catalyst layer, so that the chemical reaction efficiency is higher.
The utility model has the advantages that:
1. the hydrogen storage material pipe can absorb hydrogen during charging and release hydrogen during discharging under the condition of not being influenced by electrolyte, so that the pressure in the battery shell is controlled within the range of 0.5-1.0 MPa, compared with the traditional high-voltage nickel-hydrogen battery, the pressure value is obviously reduced, the use safety is higher, and the problems of large volume, high voltage and unsafety in the high-voltage nickel-hydrogen battery are solved.
2. The breathable film is made of a waterproof, oxygen-proof and hydrogen-permeable material, so that the electrolyte is prevented from contacting hydrogen storage material powder, and the service life is prolonged.
3. The hydrogen storage material tube is arranged in the battery core, so that the process of arranging the hydrogen storage material tube in the battery core is simplified, the internal space of the battery is saved, the contact surface is increased, the heat conduction is faster, and the reaction is faster. And the hydrogen storage material pipe is contacted with the external shell, so that the heat in the battery cell can be led out, and the service life and the performance of the battery are favorably improved.
Drawings
In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of another embodiment of the hydrogen storage material tube of the present invention;
FIG. 3 is a schematic structural view of the venting plug of the present invention;
shown in the drawings
The hydrogen storage battery comprises, by weight, 1-a breathable film, 2-carbon paper, 3-hydrogen storage material powder, 4-a negative electrode catalyst layer, 5-a diaphragm, 6-a positive plate, 7-a shell, 8-a cap, 9-a metal tube and 10-a gasket.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, the cylindrical low-voltage nickel-hydrogen battery includes a casing 7 and a cap 8, wherein a hydrogen storage material tube is arranged in the center of the inside of the casing, the hydrogen storage material tube is wrapped by a battery cell, the lower end of the hydrogen storage material tube is in contact with the casing 7, the casing 7 is a negative electrode of a power supply, and the cap 8 is a positive electrode of the power supply.
As a technical optimization scheme of the utility model, the hydrogen storage material pipe includes the cylinder cavity that is formed by carbon paper 2, pack hydrogen storage material powder 3 in the cavity, 2 outer parcel ventilated membrane 1 of carbon paper, ventilated membrane 1 and carbon paper 2 can prevent electrolyte to see through to for hydrogen provides diffusion channel, can realize the isolation to electrolyte, avoid the influence of electrolyte to hydrogen storage material powder 3. The hydrogen storage material powder 3 can absorb hydrogen during charging and release hydrogen during discharging, so that the pressure in the shell is controlled within the range of 0.5-1.0 MPa, the pressure value is obviously reduced, and the use safety is higher.
As a technical optimization scheme of the utility model, hydrogen storage material pipe includes tubular metal resonator 9, pack hydrogen storage material powder 3 in the tubular metal resonator 9, the upper end opening is equipped with ventilative stopper, ventilative stopper includes packing ring 10, be equipped with carbon paper 2, ventilated membrane 1 on the packing ring 10 in proper order. The metal tube 9 can conduct heat and make the structure more stable.
As a technical optimization scheme of the utility model, the ventilated membrane 1 is made of a waterproof, oxygen-proof and hydrogen-permeable material, and the electrolyte is blocked.
As a technical optimization scheme of the utility model, electric core includes diaphragm 5, 5 inboard parcels negative pole catalysis layer 4 of diaphragm, and the positive plate 6 is being wrapped up in the outside, contacts with electrolyte, takes place to evolve hydrogen/dehydrogenation electrochemical reaction when charging/discharging.
Negative electrode catalyst layer 4 was charged (discharged in reverse): h2O+e-→1/2H2+OH-
As a technical optimization scheme of the utility model, cap 8 is connected to positive plate 6, cap 8 is established on casing 7, and both are insulating, uses to glue to seal and avoids cap 8 and casing 7 contact, avoids the short circuit, prevents that hydrogen from revealing.
As a technical optimization scheme of the present invention, the hydrogen redox catalyst is coated on the negative electrode catalyst layer 4, so that the chemical reaction efficiency is faster.
The utility model discloses a first mode of manufacture, first step will make hydrogen storage material pipe with hydrogen storage material powder 3 under the parcel of carbon paper 2 and ventilated membrane 1. In the second step, the hydrogen storage material pipe is placed at the right center of the shell 7, so that the contact surface with hydrogen is larger, the speed is higher, the structure is compact, the operation is convenient, and the process is simple. And thirdly, wrapping a battery cell formed by winding the negative electrode catalyst layer 4, the diaphragm 5 and the positive plate 6 on the hydrogen storage material pipe in sequence. The fourth step is to inject the electrolyte into the case 7. And in the fifth step, the positive plate 6 is connected to the cap cover 8 through a lead, and is prevented from contacting the shell 7 through glue sealing, so that hydrogen leakage is prevented. The entire case 7 is sealed at the end, and the battery is completed.
The utility model discloses second mode of manufacture chooses for use the tubular metal resonator 9 of certain size for the first step, packs hydrogen storage material powder 3 in the intussuseption of tubular metal resonator 9, covers the ventilative stopper of making by packing ring 10, carbon paper 2, ventilated membrane 1 again, accomplishes hydrogen storage material pipe. In the second step, the hydrogen storage material tube is fixedly connected to the center of the lower surface in the shell 7, and the metal tube 9 can lead out the heat in the battery, so that the stability is improved. And thirdly, wrapping a battery cell formed by winding the negative electrode catalyst layer 4, the diaphragm 5 and the positive plate 6 on the hydrogen storage material pipe in sequence. The fourth step is to inject the electrolyte into the case 7. And in the fifth step, the positive plate 6 is connected to the cap cover 8 through a lead, and is prevented from contacting the shell 7 through glue sealing, so that hydrogen leakage is prevented. The entire case 7 is sealed at the end, and the battery is completed.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the technical scope of the present invention.
Claims (7)
1. A cylindrical low-pressure hydrogen-nickel battery is characterized in that: the hydrogen storage battery comprises a shell (7) and a cap (8), wherein a hydrogen storage material pipe is arranged in the center of the inside of the shell (7), the hydrogen storage material pipe is wrapped by a battery core, the shell (7) is a power supply cathode, and the cap (8) is a power supply anode.
2. A cylindrical low-pressure nickel-hydrogen battery according to claim 1, characterized in that: the hydrogen storage material pipe comprises a cylindrical cavity formed by carbon paper (2), hydrogen storage material powder (3) is filled in the cavity, and the carbon paper (2) is wrapped by a breathable film (1).
3. A cylindrical low-pressure nickel-hydrogen battery according to claim 1, characterized in that: the hydrogen storage material pipe comprises a metal pipe (9), hydrogen storage material powder (3) is filled in the metal pipe (9), a ventilation plug is arranged at an upper end opening of the metal pipe, the ventilation plug comprises a gasket (10), and carbon paper (2) and a ventilation film (1) are sequentially arranged on the gasket (10).
4. A cylindrical low-pressure nickel-hydrogen battery according to any one of claims 2 or 3, characterized in that: the breathable film (1) is made of a waterproof, oxygen-proof and hydrogen-permeable material.
5. A cylindrical low-pressure nickel-hydrogen battery according to claim 1, characterized in that: the battery core comprises a diaphragm (5), a negative electrode catalyst layer (4) is wrapped on the inner side of the diaphragm (5), a positive plate (6) is wrapped on the outer side of the diaphragm, and the positive plate (6) is insulated from a shell (7).
6. The cylindrical low-pressure nickel-hydrogen battery according to claim 5, characterized in that: the positive plate (6) is connected with the cap (8), the cap (8) is arranged on the shell (7), and the positive plate and the cap are insulated.
7. The cylindrical low-pressure nickel-hydrogen battery according to claim 5, characterized in that: and a hydrogen oxidation-reduction catalyst is coated on the negative electrode catalyst layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120795174.7U CN214477615U (en) | 2021-04-19 | 2021-04-19 | Cylindrical low-voltage nickel-hydrogen battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120795174.7U CN214477615U (en) | 2021-04-19 | 2021-04-19 | Cylindrical low-voltage nickel-hydrogen battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214477615U true CN214477615U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120795174.7U Active CN214477615U (en) | 2021-04-19 | 2021-04-19 | Cylindrical low-voltage nickel-hydrogen battery |
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| Country | Link |
|---|---|
| CN (1) | CN214477615U (en) |
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2021
- 2021-04-19 CN CN202120795174.7U patent/CN214477615U/en active Active
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