CN112510268A - Valve-controlled lead-acid storage battery - Google Patents
Valve-controlled lead-acid storage battery Download PDFInfo
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- CN112510268A CN112510268A CN202011372642.6A CN202011372642A CN112510268A CN 112510268 A CN112510268 A CN 112510268A CN 202011372642 A CN202011372642 A CN 202011372642A CN 112510268 A CN112510268 A CN 112510268A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
- H01M10/121—Valve regulated lead acid batteries [VRLA]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
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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
Abstract
The invention provides a valve-controlled lead-acid storage battery, which comprises a battery main body (1), a frame body (3) and a discharge part (2), wherein the frame body (3) and the discharge part (2) are arranged on the battery main body (1), the valve-controlled lead-acid storage battery also comprises a solid substance (4) with a gas adsorption function and a connecting piece (5), the solid substance (4) is arranged on the frame body (3), and the frame body (3) is communicated with the interior of the battery main body (1) through the connecting piece (5). The invention realizes the collection of gas, the thorough elimination of acid mist and the safety of the lead-acid storage battery, and does not influence the existing performance, structure and portability of the battery.
Description
Technical Field
The invention relates to the technical field of lead-acid storage batteries, in particular to a valve-controlled lead-acid storage battery.
Background
The sealed valve-controlled lead-acid storage battery has the advantages of environmental protection, simple maintenance, long service life and the like, and is widely applied to a plurality of fields of communication, industrial production, traffic, communication, military and the like. However, the valve-regulated sealed lead-acid battery is easy to overflow a small amount of gas in a floating charging state, and the overflowing gas simultaneously brings out a small amount of sulfuric acid mist from the inside of the battery, and the acid mist is usually dispersed around the battery, corrodes the metal structure of the battery and related communication equipment, and is harmful to human health and pollutes the atmospheric environment.
For example, chinese patent application No. CN00126156.8, "a storage battery with a gas collecting device" discloses a storage battery with a gas collecting device, which includes a battery jar for containing chemical reactants and a battery cover for sealing the battery jar, wherein a gas collecting structure formed by a safety valve port and an upper air passage cover for sealing the safety valve port is disposed on an upper surface of the battery cover. Although the scheme can avoid the damage of acid mist to equipment and the hidden danger brought by combustible gas to a certain extent, the scheme directly discharges the acid mist and the dangerous gas into the atmosphere, and does not thoroughly solve the problem of atmospheric pollution.
For example, chinese patent application No. CN01117512.5 "environmental protection type valve-controlled lead-acid battery" discloses a battery having a gas-collecting and exhausting device on the main body of the battery, and a neutralization tank containing alkaline substances is connected to the outside of the battery, the neutralization tank is connected to a gas-collecting and exhausting outlet on the battery through a connecting member, and acid mist overflowing from the battery is eliminated by chemical neutralization. Although the technical scheme can eliminate the acid mist phenomenon of the battery to a certain extent, an independent neutralization tank and a connecting piece with a certain length are additionally arranged outside the battery. This results in a complicated battery structure, increased product cost, and also, the portability of the lead-acid battery product itself is somewhat impaired.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the invention provides a valve-controlled lead-acid storage battery which can effectively solve the problems in the background art, and can not affect the existing performance, structure and portability of the battery while realizing gas collection, thorough acid mist elimination and lead-acid storage battery safety.
In order to solve the technical problems, the technical scheme of the valve-regulated lead-acid storage battery provided by the invention is as follows:
the embodiment of the invention discloses a valve-controlled lead-acid storage battery, which comprises a battery main body, a frame body and a discharge part, wherein the frame body and the discharge part are arranged on the battery main body, the valve-controlled lead-acid storage battery also comprises a solid substance with a gas adsorption function and a connecting piece, the solid substance is arranged on the frame body, the frame body is communicated with the interior of the battery main body through the connecting piece, the material for forming the frame comprises a visible transparent material and an acid corrosion resistant material, and the acid corrosion resistant material is silicon rubber, fluorine rubber and polytetrafluoroethylene; the connecting piece is made of an acid corrosion resistant material, the acid corrosion resistant material is silicon rubber, fluororubber or polytetrafluoroethylene, and the connecting piece and the frame are in flexible connection; the frame and the shell of the battery main body are integrated, and the frame and the shell integrated structure of the battery main body are formed by casting, 3D printing or molding.
In any of the above schemes, the solid matter comprises a reaction layer, the reaction layer is made of a material with a pH value of more than 7, preferably, the material with the pH value of more than 7 is made of one or a mixture of several of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium bicarbonate, sodium bicarbonate, calcium carbonate, calcium hydroxide and the like.
In any one of the above aspects, it is preferable that the solid substance includes an adsorption layer provided in the frame, the adsorption layer being configured to absorb gas generated by the battery main body.
In any of the above schemes, preferably, the adsorption layer comprises one or a mixture of several of activated carbon, molecular sieve and silica gel powder.
In any of the above schemes, preferably, the adsorption layer further comprises bonding a mixture of one or more of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium bicarbonate, and sodium bicarbonate to the ultrafiltration activated carbon, the molecular sieve, and the silica gel powder structure to form a layer.
In any one of the above aspects, it is preferable that the solid substance further includes an indicator layer, and the color of the indicator layer changes with an increase in the amount of gas adsorbed by the adsorbent layer.
In any of the above schemes, preferably, the indication layer is one or more of color-changing resin and PH reagent, and through the arrangement of the indication layer, the gas adsorption degree can be known at any time, so that the detection and the replacement are convenient.
In any of the above schemes, preferably, the valve-regulated lead-acid battery further comprises an observation window, wherein the observation window is arranged on the frame body, and the color change conditions in the color-changing resin and the PH reagent can be conveniently checked through the observation window.
In any of the above aspects, preferably, the battery main body may be provided in plurality, the drain portion is provided on each battery main body, the drain portions on each battery main body are communicated with each other through the connecting member, and the plurality of battery main bodies may be connected in series or in parallel.
In any of the above schemes, preferably, the reaction layer is made of one or more materials selected from sodium hydroxide, potassium hydroxide, sodium carbonate, potassium bicarbonate, sodium bicarbonate, calcium carbonate and calcium hydroxide.
In any of the above aspects, preferably, the discharge portion may be a gas discharge hole.
Compared with the prior art, the valve-controlled lead-acid storage battery provided by the embodiment of the invention has the advantages that compared with the existing battery with a gas collection and alkali liquor neutralization tank structure, the structure is simple and convenient, redundant components and equipment are not added, and the implementation and the operation are easy;
the adsorption principle of the porous material and the combined action of acid-base neutralization reaction are utilized, so that the acid mist adsorption effect is good;
the solid substance with the gas adsorption function is adopted, so that the risks of environmental pollution and personnel injury caused by the leakage of neutralizing liquid are avoided.
Drawings
The drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
FIG. 1 is a schematic view of a preferred embodiment of a valve regulated lead acid battery according to the present invention;
FIG. 2 is a schematic view of a plurality of cell bodies of a valve regulated lead acid battery according to the present invention when connected together;
FIG. 3 is a schematic illustration of the solid matter layering of a valve regulated lead acid battery according to the present invention;
the figure is marked with:
1. a battery main body; 2. a discharge portion; 3. a frame body; 4. a solid substance; 41. an adsorption layer; 42. an indicator layer; 43. a reaction layer; 5. a connecting member; 6. and (4) an observation window.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in fig. 1, the embodiment of the invention discloses a valve-regulated lead-acid battery, which comprises a battery main body 1, a frame body 3 and a discharge part 2, wherein the frame body 3 and the discharge part 2 are both arranged on the battery main body 1, the battery further comprises a solid substance 4 with a gas adsorption function and a connecting piece 5, the solid substance 4 is arranged on the frame body 3, the frame body 3 is communicated with the inside of the battery main body 1 through the connecting piece 5, the material for forming the frame 3 comprises a visible transparent material and an acid corrosion resistant material, and the acid corrosion resistant material is silicon rubber, fluororubber or polytetrafluoroethylene; the connecting piece 5 is made of an acid corrosion resistant material, the acid corrosion resistant material is silicon rubber, fluororubber or polytetrafluoroethylene, and the connecting piece 5 and the frame 3 are in flexible connection; the frame 3 and the shell of the battery body 1 are integrated, and the processing method of the integrated structure of the frame 3 and the shell of the battery body 1 is casting forming, 3D printing or molding forming.
As shown in FIG. 3, the solid substance 4 comprises a reaction layer 43, wherein the reaction layer 43 is made of a material with a pH value of more than 7, preferably, a material with a pH value of more than 7 is made of one or a mixture of several of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium bicarbonate, sodium bicarbonate, calcium carbonate, calcium hydroxide and the like.
As shown in fig. 3, the solid substance 4 includes an adsorption layer, the adsorption layer is disposed in the frame, the adsorption layer 41 is used for absorbing the gas generated by the battery main body, the adsorption layer 41 includes one or more of activated carbon, molecular sieve and silica gel powder, and the adsorption layer further includes a structure in which one or more of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium bicarbonate and sodium bicarbonate is bonded to the ultrafiltration activated carbon, molecular sieve and silica gel powder.
As shown in fig. 3, the solid substance further includes an indication layer 42, the color of the indication layer 42 changes along with the increase of the gas adsorption amount of the adsorption layer, the indication layer 42 is one or more of a color-changing resin and a PH reagent, and the gas adsorption degree can be known at any time through the arrangement of the indication layer 42, so that the detection and the replacement are convenient.
As shown in fig. 1, the valve-regulated lead-acid battery further comprises an observation window 6, wherein the observation window 6 is arranged on the frame body 3, and the color change condition of the color-changing resin and the PH reagent can be conveniently checked through the observation window 6.
As shown in fig. 2, the battery body 1 may be provided in plurality, the discharging part 2 is provided on each battery body 1, the discharging parts 2 on each battery body 1 are communicated with each other through the connecting member 5, the plurality of battery bodies 1 may be connected in series or in parallel, the discharging part 2 may be a gas discharging hole, the frame 3 may be made of a visible transparent material and an acid corrosion resistant material, and the acid corrosion resistant material may be silicone rubber, fluororubber, polytetrafluoroethylene; the connecting piece 5 is a conduit, the conduit is made of an acid corrosion resistant material, the acid corrosion resistant material is silicon rubber, fluororubber or polytetrafluoroethylene, and the conduit is in flexible connection with the frame 3; the frame 3 and the shell of the battery body 1 are integrated, and the processing method of the integrated structure of the frame 3 and the shell of the battery body 1 is casting forming, 3D printing or molding forming.
For better understanding of the above technical solutions, the technical solutions of the present invention will be described in detail below with reference to the drawings and the detailed description of the present invention.
Example 1:
as shown in fig. 1 and 2, in the valve-regulated lead-acid battery of the present embodiment, the rated voltage of the valve-regulated lead-acid battery is 24V, the valve-regulated lead-acid battery includes a battery body 1, a frame structure 3 is disposed on the upper side of a cover plate on the top of the battery body 1, a solid substance 4 is disposed in the frame structure 3, one side of the frame structure 3 is provided with a through hole and is communicated with a gas discharge hole through a conduit, the conduit and the frame structure 3 are made of acid corrosion resistant polytetrafluoroethylene, the upper side of the frame structure 3 is provided with an observation window 6 for conveniently observing the color change of the solid substance 4, the solid substance 4 is formed by mixing sodium carbonate, calcium carbonate and potassium bicarbonate, the weight ratio of the three components is 1:1: 1:1, and the mixing is performed at room temperature for at least 2.5 hours, the cover plate of the battery body, then the solid matter 4 is placed in the frame body 3, the battery is charged and discharged at rated current, after running for 80 hours continuously, the color of the solid matter 4 is found to change, and the solid adsorption matter is replaced.
Example 2:
as shown in fig. 1, 2 and 3, in the valve-regulated lead-acid battery of the present embodiment, 4 valve-regulated lead-acid batteries with a rated voltage of 12V are connected in series. Every battery includes battery body 1, sets up framework 3 at last battery top apron upside, and framework 3's structural dimension is: the length is 30mm, the width is 30mm, the height is 40mm, the solid matter 4 is placed in the frame body 3, and a through hole is formed in one side, close to the gas discharge hole, of the frame body 3 and communicated with the gas discharge hole through a guide pipe. The conduit and the frame body 3 are made of acid corrosion resistant polytetrafluoroethylene, and the front side and the rear side of the structure of the frame body 3 are provided with observation windows 6, so that the color change condition of solid matters can be facilitated. The solid matter 4 is formed by mixing three materials of ultrafiltration active carbon, molecular sieve and silica gel powder, and the volume ratio of the three materials is 5:4: 1. 4 batteries are charged and discharged at rated current, and after the batteries continuously work for 150 hours, the color of the solid matter 4 changes, and the solid adsorbed matter is replaced.
Example 3:
as shown in fig. 1, 2 and 3, the valve-regulated lead-acid battery of the present embodiment includes a battery main body 1, a frame 3 disposed on the top cover plate of the battery, a solid material 4 disposed in the frame 3, a through hole disposed on one side of the frame 3 and connected to the gas discharge hole via a conduit, and a flexible connection between the conduit and the frame 3. The solid substance 4 is composed of a layered material, namely a reaction layer 43 and an indicating layer 42 (shown in fig. 3). Wherein, the reaction layer 43 is arranged at the bottom layer and is composed of sodium carbonate, potassium carbonate and sodium bicarbonate (the weight ratio of the sodium carbonate to the potassium carbonate to the sodium bicarbonate is 3:3:4, and the weight of the reaction layer accounts for 90 percent of the total weight of the solid matters); an acid-base indicator is disposed in the indicator layer 42, and the weight of the indicator layer is 10% of the total weight of the solid matter. After the battery is continuously operated for 50 hours in charge and discharge operation at rated current, the indicator is changed from white to blue, and the solid adsorbing substance is replaced.
Example 4:
as shown in fig. 1, 2 and 3, the valve-regulated lead-acid battery of the present embodiment comprises a battery body 1, a solid material 4 is placed on the upper side of the top cover plate of the battery, and a base is provided on the lower part of the top cover plate, and the solid material can be stably fixed on the upper side of the cover plate of the battery body 1. The distance between the solid matter 4 and the valve of the battery is not more than 2cm, and no conduit is connected between the solid matter and the valve of the battery. The solid substance 4 is composed of a layered material, an adsorption layer 41 and an indication layer 42 (shown in fig. 3). Wherein, the adsorption layer 41 is arranged at the bottom layer and is formed by mixing an ultrafiltration molecular sieve and silica gel powder (the weight ratio of the ultrafiltration molecular sieve to the silica gel powder is 2:1), and the volume of the adsorption layer accounts for 85 percent of the total volume of the solid matter; the upper layer is an indicating layer 42, and the constituent material is allochroic silicagel, the volume of which accounts for 15% of the total volume weight of the solid matter. After the battery continuously works for 100 hours, the indicating layer is changed from blue to pink, and the solid adsorbing substance is replaced.
Example 5:
as shown in fig. 1, 2 and 3, the valve-regulated lead-acid battery of the present embodiment includes a battery body 1, a frame 3 disposed on the upper side of a cover plate of the battery body 1, a solid material 4 disposed in the frame 3, and a through hole disposed on one side of the frame 3 and communicated with a gas discharge hole via a conduit. The catheter is made of an acid corrosion resistant plastic material, one side of the frame body 3 is provided with an observation window 6, and the observation window 6 is made of transparent plastic. The solid substance 4 is made of a layered material, and is composed of a reaction layer 43, an adsorption layer 41, and an indicator layer 42 (shown in fig. 3). Wherein, the reaction layer 43 is arranged at the bottom layer and is composed of potassium bicarbonate, and the weight of the reaction layer accounts for 45 percent of the total weight of the solid matter; an activated carbon material is arranged on the upper side of the reaction layer 43, and the weight of the activated carbon material accounts for 40% of the total weight of the solid matter; the uppermost layer is an indicator layer 42 made of a color-changing resin, the weight of which is 15% of the total weight of the solid matter. The battery pack consisting of 8 12V batteries is charged and discharged at rated current, and after the battery pack continuously works for 150 hours, the color of the solid substance 4 changes, and the solid adsorbed substance is replaced.
Example 6:
as shown in fig. 1, 2 and 3, the valve-regulated lead-acid battery of the present embodiment includes a battery body 1, a frame 3 disposed on the upper side of a cover plate of the battery body 1, a solid material 4 disposed in the frame 3, and a through hole disposed on one side of the frame 3 and communicated with a gas discharge hole via a conduit. The conduit and the frame body 3 are made of silicon rubber with acid corrosion resistance. The solid substance 4 is made of a layered material, and is composed of a reaction layer 43, an adsorption layer 41, and an indicator layer 42 (shown in fig. 3). Wherein, the reaction layer 43 is arranged at the bottommost layer and consists of sodium hydroxide and potassium bicarbonate (the weight ratio of the sodium hydroxide to the potassium bicarbonate is 6:4, and the weight of the reaction layer accounts for 70 percent of the total weight of the solid matter); ultrafiltration activated carbon is arranged on the upper side of the reaction layer 43, and the weight of the ultrafiltration activated carbon accounts for 20 percent of the total weight of the solid matter; the uppermost layer is an indicating layer 42 made of allochroic silicagel, and the weight of the allochroic silicagel accounts for 10 percent of the total weight of the solid matter. After the battery is continuously operated for 120 hours at rated power for charging and discharging operations, the indicator layer 42 changes from blue to pink. And replacing the solid adsorbent by detecting that the pH value in the tail gas is 6.
Example 7:
as shown in fig. 1, 2 and 3, the valve-regulated lead-acid battery of the present embodiment includes a battery body 1, a solid material 4 is placed on the upper side of the cover plate of the battery body 1, and a base is provided on the lower portion of the solid material, so that the solid material can be stably fixed on the upper side of the cover plate. The base and the battery cover plate are processed in a molding and integral forming mode. The solid matter 4 is spaced from the battery gas discharge hole by not more than 1cm, and there is no connection between the two. The solid substance 4 is composed of two layers of materials, a reaction adsorption layer and an indicator layer 42. The reaction adsorption layer has double effects of reaction and adsorption, is arranged on the lower layer of a solid substance, and is made of ultrafiltration activated carbon bonded with sodium hydroxide and an ultrafiltration molecular sieve bonded with potassium hydroxide in a weight ratio of 1:1, and is fully stirred and mixed for at least 2 hours at room temperature, and the height of the reaction adsorption layer accounts for 95% of the height of the solid substance. The top layer of the solid matter 4 is provided with allochroic silicagel, and the height of the allochroic silicagel accounts for 5 percent of the total height of the solid matter. After a battery pack of four 12V cells was operated continuously at rated voltage for 180 hours, it turned from blue to pink. And replacing the solid adsorbing substance by detecting that the pH value in the tail gas is 6.3.
The preparation method of the ultrafiltration activated carbon bonded with sodium hydroxide comprises the following steps: the method comprises the following steps: and (3) stirring and heating the ultrafiltration activated carbon in a sodium hydroxide saturated solution for reaction for 20 hours, filtering and drying to obtain the sodium hydroxide bonded ultrafiltration activated carbon.
The preparation method of the ultrafiltration molecular sieve bonded with potassium hydroxide comprises the following steps: the same as above, and therefore, will not be described herein.
Example 8:
as shown in fig. 1, 2 and 3, the valve-regulated lead-acid battery of the present embodiment includes a battery body 1, a frame 3 is disposed on the upper side of a cover plate of the battery body 1, and the frame has the following dimensions: length 25mm, width 25mm, height 30 mm. Solid matter 4 is placed in the frame body, and one side of the frame body 3 is provided with a through hole and communicated with the gas discharge hole through a conduit. The solid substance 4 is composed of two layers of materials, namely a reaction adsorption layer and an indication layer 41, wherein the reaction adsorption layer has double effects of reaction and adsorption, the reaction adsorption layer is arranged at the bottommost layer, the materials are ultrafiltration activated carbon bonded with potassium bicarbonate and ultrafiltration silica gel powder bonded with sodium bicarbonate, the weight ratio of the ultrafiltration activated carbon bonded with potassium bicarbonate to the ultrafiltration silica gel powder bonded with sodium bicarbonate is 2:1, the materials are fully stirred and mixed for at least 3 hours at room temperature, and the height of the reaction adsorption layer accounts for 90% of the height of the solid substance. The phenolphthalein indicator is placed on the top layer of the solid matter, and the height of the phenolphthalein indicator accounts for 10% of the total height of the solid matter. After running 1 24V battery continuously for 80 hours at rated current, it changed from blue to pink. And replacing the solid adsorbing substance by detecting that the pH value in the tail gas is 6.3.
Wherein, the preparation method of the ultrafiltration activated carbon bonded with potassium bicarbonate comprises the following steps: the method comprises the following steps: and (3) stirring and heating the ultrafiltration activated carbon in a potassium bicarbonate saturated solution for reaction for 25 hours, filtering and drying to obtain the potassium bicarbonate bonded ultrafiltration activated carbon.
The preparation method of the ultrafiltration silica gel powder bonded with the sodium bicarbonate comprises the following steps: the method is the same as the preparation method of the ultrafiltration activated carbon bonded with potassium bicarbonate, and therefore, the detailed description is omitted.
Example 9:
as shown in fig. 1, 2 and 3, the valve-regulated lead-acid battery of the present embodiment includes a battery main body 1, a frame 3 disposed on the top cover plate of the battery, a solid material 4 disposed in the frame, and a through hole disposed on one side of the frame and communicated with a gas discharge hole via a conduit. The conduit is made of acid corrosion resistant fluororubber, and one side of the frame body 3 is provided with an observation window 6, so that the color change condition of solid matters can be facilitated. The solid substance 4 is composed of a layered material, namely a reaction layer 43 and an indicating layer 42 (shown in fig. 3). Wherein, the reaction layer 43 is arranged at the bottommost layer and consists of sodium hydroxide, sodium carbonate and sodium bicarbonate (the weight ratio of the sodium hydroxide, the sodium carbonate and the sodium bicarbonate is 2:4:4, and the weight of the reaction layer 43 accounts for 80 percent of the total weight of the solid matters); an acid-base indicator is placed in the reaction layer 43, and the weight of the indicator accounts for 20% of the total weight of the solid matter. The cover plate of the battery body 1 and the frame body 3 are integrally cast, and then the cast body is integrally mounted on the battery body, and the solid matter 4 is placed in the frame body 3. 4 batteries are charged and discharged at rated current, and after the batteries continuously work for 150 hours, the color of the solid matter 4 changes, and the solid adsorbed matter is replaced.
Example 10:
as shown in fig. 1, 2 and 3, the valve-regulated lead-acid battery of the present embodiment includes a battery body 1, a solid material 4 is placed on the upper side of the cover plate of the battery body 1, and a base is provided on the lower portion of the solid material, so that the solid material can be stably fixed on the upper side of the cover plate. The distance between the solid matter 4 and the valve of the battery is not more than 2cm, and the conduit between the solid matter and the valve of the battery is not connected. The solid substance 4 is made of a layered material, and is composed of a reaction layer 43, an adsorption layer 41, and an indicator layer 42 (shown in fig. 3). Wherein, the reaction layer 43 is arranged at the bottommost layer and is composed of calcium hydroxide, and the weight of the reaction layer 43 accounts for 60 percent of the total weight of the solid matter; placing silica gel powder on the upper side of the reaction layer 43, wherein the weight of the silica gel powder accounts for 30% of the total weight of the solid matter; the uppermost layer is an indicating layer 42 composed of an acid-base indicator, the weight of which is 10% of the total weight of the solid matter. The cover plate of the battery body 1 is screwed to the frame 3, and the solid material 4 is placed in the base 3. 4 batteries are charged and discharged at rated power, and after the batteries continuously work for 150 hours, the color of the indicating layer 42 is changed, and the solid adsorption substances are replaced.
Example 11:
and respectively connecting the positive and negative electrodes of the lead-acid storage battery with the solid matter with the gas adsorption function and the battery without the solid matter with the gas adsorption function with the positive and negative electrodes of the base station equipment, and then carrying out comparison test. The solid matter 4 with gas adsorption function is made of layered material, which is a reaction adsorption layer and an indication layer. Wherein, the reaction layer is arranged at the bottommost layer and consists of sodium hydroxide and potassium bicarbonate (the weight ratio of the sodium hydroxide to the potassium bicarbonate is 3:7, and the height of the reaction layer accounts for 80 percent of the total height of the solid matter); an ultrafiltration molecular sieve is arranged on the upper side of the reaction layer, and the height of the ultrafiltration molecular sieve accounts for 15 percent of the total height of the solid matter; the top layer is provided with allochroic silicagel which accounts for 5 percent of the total height of the solid matter. The battery using the solid substance 4 has the same structure as the battery using the non-solid substance 4, and the difference is only whether the solid substance having a function of adsorption is mounted or not, and the rated voltage is 12V. The two batteries are kept in a floating state and continuously operated for 2000 hours, 4000 hours, 8000 hours and 16000 hours respectively at the temperature of 20 ℃ and the humidity of 30 percent, and the corrosion degree of the metal part of the battery terminal is measured. The floating charge state is that after the battery is fully charged, the battery is continuously charged by using a small current to enter the floating charge state. Taking a 12V battery as an example, the float charging voltage is in the range of 13.2V-13.8V, and the float charging current is automatically formed when the current which can be accepted by the battery is very small because the battery is fully charged. The results of the measurement were as follows:
from the above table, it can be seen that the metal terminal metal corrosion area of the battery with the solid substance with gas adsorption function is only 7.6% after 16000 hours of continuous operation, which is about 25% less than the corrosion area of the terminal metal part of the battery without the solid substance with gas adsorption function, indicating that the battery with the solid substance with gas adsorption function can effectively reduce the acid gas overflow during the battery operation process, and reduce the corrosion degree to the battery metal parts.
While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, it should be understood by those skilled in the art that the above-described embodiments are not intended to limit the invention in any way, and that all technical solutions obtained by means of equivalents or equivalent changes fall within the scope of the invention.
Claims (10)
1. The valve-controlled lead-acid storage battery comprises a battery main body (1), a frame body (3) and a discharge part (2), wherein the frame body (3) and the discharge part (2) are arranged on the battery main body (1), the valve-controlled lead-acid storage battery is characterized by further comprising a solid substance (4) with a gas adsorption function and a connecting piece (5), the solid substance (4) is arranged on the frame body (3), and the frame body (3) is communicated with the interior of the battery main body (1) through the connecting piece (5).
2. Valve-regulated lead-acid battery according to claim 1, characterized in that the solid substance (4) comprises a reactive layer (43), the reactive layer (43) being composed of a material with a pH > 7.
3. The valve-regulated lead-acid battery according to claim 2, characterized in that the solid substance (4) comprises an adsorption layer (41), the adsorption layer (41) being provided within the frame (3), the adsorption layer (41) being intended to absorb gases generated by the battery body (1).
4. Valve-regulated lead-acid battery according to claim 3, characterized in that the adsorption layer (41) comprises one or a mixture of several of activated carbon, molecular sieves, silica gel powder.
5. The valve-regulated lead-acid battery according to claim 4, wherein the adsorption layer (41) further comprises a layer formed by bonding a mixture of one or more of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium bicarbonate and sodium bicarbonate to the structure of ultrafiltration activated carbon, molecular sieve and silica gel powder.
6. Valve-regulated lead-acid battery according to claim 5, characterized in that the solid substance (4) further comprises an indicator layer (42), the color of the indicator layer (42) changing with increasing amount of gas adsorbed by the adsorbent layer (41).
7. The valve-regulated lead-acid battery according to claim 6, characterized in that the indicator layer (42) is one or more of a color-changing resin and a PH reagent.
8. The valve-regulated lead-acid battery according to any one of claims 1 to 7, characterized in that it further comprises an observation window (6), the observation window (6) being provided on the frame (3).
9. The valve-regulated lead-acid battery according to claim 8, characterized in that the battery body (1) is provided in plurality, the drain (2) is provided on each battery body (1), and the drains (2) on each battery body (1) are interconnected by the connecting member (5).
10. The valve-regulated lead-acid battery according to claim 9, wherein the reaction layer is made of one or more materials selected from sodium hydroxide, potassium hydroxide, sodium carbonate, potassium bicarbonate, sodium bicarbonate, calcium carbonate and calcium hydroxide.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372642.6A CN112510268A (en) | 2020-11-30 | 2020-11-30 | Valve-controlled lead-acid storage battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372642.6A CN112510268A (en) | 2020-11-30 | 2020-11-30 | Valve-controlled lead-acid storage battery |
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| CN112510268A true CN112510268A (en) | 2021-03-16 |
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| CN202011372642.6A Pending CN112510268A (en) | 2020-11-30 | 2020-11-30 | Valve-controlled lead-acid storage battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243201A (en) * | 2021-12-20 | 2022-03-25 | 风帆（扬州）有限责任公司 | High valve accuse non-maintaining battery of security |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114243201A (en) * | 2021-12-20 | 2022-03-25 | 风帆（扬州）有限责任公司 | High valve accuse non-maintaining battery of security |
| CN114243201B (en) * | 2021-12-20 | 2023-11-17 | 风帆（扬州）有限责任公司 | High valve accuse maintenance-free battery of security |
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Application publication date: 20210316 |
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