A preparation method of lead-carbon battery and lead-carbon battery

Abstract

The invention discloses a preparation method of a lead-carbon battery and a lead-carbon battery. The preparation method of the lead-carbon battery comprises the following steps: S1, assembling an electrode assembly into a battery housing, and the electrode assembly is arranged horizontally; S2, adding electrolyte into the battery housing after step S1 according to the lead-carbon battery, and installing a cover on the battery housing; the amount of electrolyte added into the lead-carbon battery is the standard amount plus an extra amount; S3, installing a liquid storage assembly and a circulating cooling assembly on the cover after step S2, so that the liquid storage assembly and the circulating cooling assembly are connected. Compared with the prior art, the preparation method of a lead-carbon battery and the lead-carbon battery of the invention can avoid the evaporation of electrolyte water in the lead-carbon battery under high temperature environment, resulting in an imbalance in the electrolyte ratio, and avoid the increase of sulfuric acid concentration in the electrolyte, resulting in excessive density, electrolyte penetration difficulty, lead-carbon battery capacity reduction, corrosion of grid plates, easy sulfidation of pole plates, etc., thereby extending the service life of the lead-carbon battery.

Description

Technical Field

[0001] The invention belongs to the technical field of lead-carbon batteries, and in particular relates to a preparation method of a lead-carbon battery and a lead-carbon battery. Background Art

[0002] Lead-carbon battery is a capacitor-type lead-acid battery, which is a technology evolved from traditional lead-acid battery. It adds activated carbon to the negative electrode of the lead-acid battery, which can significantly increase the life of the lead-acid battery. Lead-carbon battery is a new type of super battery, which combines lead-acid battery and supercapacitor into one. It not only takes advantage of supercapacitor's instantaneous large-capacity charging, but also takes advantage of lead-acid battery's specific energy. Due to the addition of carbon (graphene), the negative electrode sulfation phenomenon is effectively prevented, which improves one of the factors of battery failure in the past and extends the battery life.

[0003] However, when the lead-carbon battery is about to reach its peak charge, the charging current is only used to decompose the water in the electrolyte. At this time, the positive electrode of the battery produces oxygen and the negative electrode produces hydrogen. The gas will overflow from the lead-carbon battery, causing the electrolyte to decrease. In a high temperature environment, the water in the electrolyte will also evaporate. This causes the water content in the electrolyte to decrease, while sulfuric acid will not decrease during the use of the lead-carbon battery. When the water content of the electrolyte in the lead-carbon battery is indeed too much, the concentration of sulfuric acid will increase, which will lead to the difficulty of electrolyte penetration due to excessive density, the decrease of lead-carbon battery capacity, corrosion of grid plates, easy sulfidation of pole plates, and shortened life of lead-carbon batteries.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide a method for preparing a lead-carbon battery and a lead-carbon battery, which can solve the problems raised in the above background technology.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A method for preparing a lead-carbon battery comprises the following steps:

[0008] S1. Assemble the electrode assembly into the battery housing, and place the electrode assembly horizontally;

[0009] S2, adding electrolyte into the battery housing after step S1 according to the lead-carbon battery, and installing the cover on the battery housing;

[0010] The amount of electrolyte added to the lead-carbon battery is the standard amount plus an extra amount;

[0011] S3, installing a liquid storage component and a circulating cooling component on the cover body after step S2, so that the liquid storage component and the circulating cooling component are connected;

[0012] S4, installing an air intake assembly on the battery housing after step S3, and connecting the air intake assembly to the liquid storage assembly so that the liquid storage assembly can extract steam and recycle it;

[0013] S5, installing an impurity treatment component on the battery housing after step S4, connecting one end of the impurity treatment component to the circulating cooling component, and circulating the electrolyte so that the impurity treatment component is filled with electrolyte, and the amount of electrolyte in the impurity treatment component is equal to the additional amount;

[0014] S6. Test the function of the lead-carbon battery after step S5, and test whether the liquid storage component, the air intake component, the circulating cooling component and the impurity treatment component can operate normally.

[0015] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0016] A lead-carbon battery comprises a battery shell and an electrode assembly installed in the battery shell, wherein the upper end of the battery shell is covered with a cover body, and the battery shell has a first cavity. The lead-carbon battery also comprises a liquid storage assembly, a circulating cooling assembly, and an air intake assembly. The liquid storage assembly comprises a first shell and a second shell, wherein the first shell and the second shell are both hollow, and the first shell and the second shell are integrally formed. The first shell is filled with electrolyte water, and the circulating cooling assembly is installed inside the first cavity for circulating electrolyte water and facilitating heat dissipation of the lead-carbon battery. The air intake assembly is used for conveying steam generated by the lead-carbon battery to the second shell and cooling the steam. The circulating cooling assembly comprises a heat exchange tube, and a plurality of first liquid outlets are installed on the heat exchange tube, and the electrolyte water in the first shell can be conveyed to the battery shell through the first liquid outlets.

[0017] In one or more embodiments of the present invention, a heat exchange fin is arranged between the first shell and the second shell, one end of the heat exchange fin is located in the first shell, and the other end is located in the second shell. The heat exchange fin is arranged in an S shape so that the steam entering the second shell moves along the direction in which the heat exchange fin is arranged.

[0018] In one or more embodiments of the present invention, a plurality of connecting ears are fixedly connected to the outer side of the first shell, a through hole is provided on the connecting ear, a positioning groove matching the first shell is provided on the cover body, a threaded hole matching the through hole is provided on the bottom wall of the positioning groove, a bolt is installed in the through hole, and the bolt passes through the through hole and is threadedly connected to the threaded hole.

[0019] In one or more embodiments of the present invention, the heat exchange tube has a heat exchange tube inlet end and a heat exchange tube outlet end, and the heat exchange tube inlet end and the heat exchange tube outlet end are both connected to the liquid storage component to form an electrolyte water circulation pipeline.

[0020] In one or more embodiments of the present invention, the air intake assembly includes an air intake pipe and a flow valve installed on the air intake pipe, one end of the air intake pipe is connected to the battery shell, and the other end is connected to the second shell, the flow valve is used to measure the steam flow rate of steam in the battery shell entering the second shell, the lost electrolyte water is converted according to the steam flow rate, and the lost electrolyte water is compensated by the circulating cooling assembly.

[0021] In one or more embodiments of the present invention, an impurity treatment component is included, and the impurity treatment component is used to extract electrolyte water in the battery housing and filter impurities in the electrolyte water.

[0022] In one or more embodiments of the present invention, the impurity processing component includes a first connecting tube and a second connecting tube, one end of the first connecting tube is connected to the battery housing, a plurality of second liquid outlet nozzles are installed at the lower end of the heat exchange tube for spraying electrolyte, and the plurality of second liquid outlet nozzles are respectively directed to different positions for spraying electrolyte in different directions, one end of the second connecting tube passes through the liquid storage component and is connected to the second liquid outlet nozzle, an impurity processing part is arranged between the first connecting tube and the second connecting tube, and a micro pump is arranged on the second connecting tube.

[0023] In one or more embodiments of the present invention, the impurity processing part includes a third shell, one end of the first connecting pipe is located in the middle of the third shell, a duckbill valve is arranged inside the third shell, the duckbill valve is located at the lower end of the first connecting pipe, the inner wall of the third shell is provided with a filter layer matching the second connecting pipe, and an observation window is opened on the third shell.

[0024] In one or more embodiments of the present invention, a micro-electric module is included, and the micro-electric module is used to power electronic components on the lead-carbon battery.

[0025] Compared with the prior art, the preparation method of a lead-carbon battery and the lead-carbon battery of the present invention have the following advantages:

[0026] 1) It can prevent the evaporation of electrolyte water in lead-carbon batteries under high temperature environment, resulting in an imbalance in the electrolyte ratio, and avoid the increase of sulfuric acid concentration in the electrolyte, which leads to excessive density and difficulty in electrolyte penetration, a decrease in lead-carbon battery capacity, corrosion of grid plates, and easy sulfidation of polar plates, thereby extending the service life of lead-carbon batteries;

[0027] 2) Through the cooperation of the liquid storage component and the circulating cooling component, the lead-carbon battery can be water-cooled to reduce the overheating of the lead-carbon battery during high-power use;

[0028] 3) Through the cooperation of the liquid storage component and the air intake component, the electrolyte water vapor in the lead-carbon battery can be collected, and the heat exchange between the electrolyte water and the electrolyte water vapor can be realized, the temperature of the electrolyte water vapor can be reduced, and the electrolyte water vapor can be converted into electrolyte water and then transported to the liquid storage component, so as to avoid the direct release of the electrolyte water vapor, thereby avoiding the waste of the electrolyte water vapor. In the process of heat exchange, the heat of the electrolyte water can be increased. In the process of replenishing the electrolyte water of the lead-carbon battery, the temperature of the electrolyte water will not be too different from the temperature of the electrolyte, which is not easy to affect the normal use of the lead-carbon battery;

[0029] 4) By setting up an impurity treatment component, it is possible to target the impurities in the electrolyte of the lead-carbon battery, avoid excessive impurities in the electrolyte affecting the normal use of the lead-carbon battery, and avoid impurities affecting the service life of the lead-carbon battery;

[0030] 5) The electrolyte can be collected through the auxiliary liquid storage tank in case of replacement of the electrolyte. When cleaning the electrolyte impurities, it is only necessary to disassemble the battery shell and cover of the lead-carbon battery and take out the impurities in the battery shell, so as to avoid contact between people and the electrolyte as much as possible, avoid harm caused by the electrolyte to people, and improve safety in the process of cleaning impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 This is a flowchart of a method for preparing a lead-carbon battery in one embodiment of the present invention;

[0033] Figure 2 A schematic diagram of the structure of a lead-carbon battery in one embodiment of the present invention Figure 1 ;

[0034] Figure 3 is a cross-sectional view of a lead-carbon battery in one embodiment of the present invention;

[0035] Figure 4 An exploded view of a lead-carbon battery in one embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of a battery housing in one embodiment of the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of a circulating cooling component in one embodiment of the present invention;

[0038] Figure 7 This is a schematic structural diagram of a liquid storage component in one embodiment of the present invention;

[0039] Figure 8 A cross-sectional view of a liquid storage assembly according to an embodiment of the present invention Figure 1 ;

[0040] Fig. 9 A cross-sectional view of a liquid storage assembly according to an embodiment of the present invention Figure 2 ;

[0041] Fig.10 is a cross-sectional view of an impurity treatment portion in one embodiment of the present invention;

[0042] Fig.11 A schematic diagram of the use of a circulating cooling component in one embodiment of the present invention;

[0043] Fig.12 This is a schematic diagram of the battery housing structure in one embodiment of the present invention;

[0044] Fig.13 A schematic diagram of the structure of a lead-carbon battery in one embodiment of the present invention Figure 2 ;

[0045] Fig.14 Schematic diagram of another installation method of the battery housing and the liquid storage assembly in one embodiment of the present invention.

[0046] Description of main reference numerals:

[0047] 1. Battery housing; 101. First cavity; 102. First mounting hole; 103. Built-in pipeline; 2. Cover; 201. Positioning groove; 202. Threaded hole; 3. Electrode assembly; 4. Liquid storage assembly; 401. First housing; 4011. Connecting ear; 4012. Through hole; 402. Second housing; 403. Heat exchanger; 5. Circulating cooling assembly; 501. Heat exchange tube; 5011. Heat exchange tube inlet; 5012. Heat exchange tube outlet End; 502, first liquid outlet nozzle; 503, second liquid outlet nozzle; 6, air intake assembly; 601, air intake pipe; 602, flow valve; 7, impurity handling assembly; 701, impurity handling unit; 7011, third shell; 7012, duckbill valve; 7013, filter layer; 7014, observation window; 702, first connecting pipe; 703, second connecting pipe; 704, micro pump; 8, micro-electric module; 9, auxiliary liquid storage tank; 10, third connecting pipe. DETAILED DESCRIPTION

[0048] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0049] like Figure 2 to Figure 11 As shown, a lead-carbon battery in one embodiment of the present invention. The lead-carbon battery includes a battery housing 1 and an electrode assembly 3 installed in the battery housing 1. The electrode assembly 3 promotes electrochemical reactions by contacting the electrolyte and the positive and negative electrodes. The upper end of the battery housing 1 is covered with a cover 2. After the battery housing 1 and the cover 2 are connected, the battery housing 1 is in a sealed state. The interior of the battery housing 1 is filled with an electrolyte, which plays a role in conducting electricity and dissipating heat.

[0050] Lead-carbon batteries generally use acid electrolytes, which are generally made of pure sulfuric acid and electrolyte water in a certain proportion. The electrolyte water is used to protect the lead-carbon battery during the charge and discharge process. If the ratio of electrolyte water to pure sulfuric acid is unbalanced, if the proportion of electrolyte water is too large, the electrolyte density will be too low, it is easy to freeze, the internal resistance of the lead-carbon battery will increase, and the capacity will decrease accordingly. If the proportion of electrolyte water is too small, the electrolyte density will be too high, the electrolyte will be difficult to penetrate, the capacity of the lead-carbon battery will decrease, the grid will corrode, the plate will be easy to sulfide, and the life of the lead-carbon battery will be shortened.

[0051] Among them, the electrolyte water is generally pure water or distilled water.

[0052] like Figure 3 , Figure 5 As shown, the battery housing 1 has a first cavity 101, a circulating cooling assembly 5 is installed inside the first cavity 101, and a liquid storage assembly 4 matching the circulating cooling assembly 5 is installed on the upper end of the cover body 2, and the liquid storage assembly 4 is filled with electrolyte water. The liquid storage assembly 4 and the circulating cooling assembly 5 cooperate to enable the electrolyte water to circulate between the liquid storage assembly 4 and the circulating cooling assembly 5. Since the circulating cooling assembly 5 is installed inside the battery housing 1, it can contact the outer wall of the battery housing 1 to achieve heat exchange, reduce the serious heating during the use of the lead-carbon battery, and thus extend the service life of the battery. The liquid storage assembly 4 located at the upper end of the cover body 2 can also dissipate heat to the upper part of the battery, and the liquid storage assembly 4 is close to the positive and negative connection ends of the electrode assembly 3. The liquid storage assembly 4 can absorb the heat emitted from the positive and negative connection ends, which is convenient for dissipating heat at the connection between the positive and negative electrodes of the electrode assembly 3.

[0053] like Figure 7 to Figure 9As shown, the liquid storage component 4 includes a first shell 401 and a second shell 402. The first shell 401 and the second shell 402 are both hollow. The electrolyte water is filled in the first shell 401, and the heat exchange tube outlet end 5012 and the heat exchange tube inlet end 5011 are both connected to the first shell 401. The second shell 402 is integrally formed at the upper end of the first shell 401, and the upper end surface of the second shell 402 is higher than the upper end surface of the first shell 401. An air intake component 6 is connected between the first shell 401 and the battery shell 1. The air intake component 6 is used to transport the steam generated during the use of the lead-carbon battery to the second shell 402. The steam can be stored in the second shell 402, and the steam can be cooled to form electrolyte water after cooling. The electrolyte water flows into the first shell 401 to complete the recycling of the electrolyte water.

[0054] like Figure 4 , Figure 7 As shown, the side wall of the first shell 401 is fixedly connected with a connecting ear 4011, and a through hole 4012 is provided on the connecting ear 4011, and a bolt is arranged in the through hole 4012. The upper end surface of the cover body 2 is provided with a positioning groove 201, and the bottom wall of the positioning groove 201 is provided with a threaded hole 202 matching the through hole 4012, and the bolt passes through the through hole 4012 and is threadedly connected with the threaded hole 202. That is, the liquid storage component 4 is installed on the lead-carbon battery in a detachable manner. After the liquid storage component 4 is damaged, the liquid storage component 4 can be replaced and repaired separately. Similarly, after the lead-carbon battery is damaged, the liquid storage component 4 can be disassembled. After monitoring that the liquid storage component 4 functions normally, the liquid storage component 4 can be used on a new lead-carbon battery, which greatly reduces the use cost of the lead-carbon battery. The liquid storage component 4 is installed on the positioning groove 201. The positioning groove 201 not only serves to position the liquid storage component 4, but also can reduce the thickness of the cover 2. The liquid storage component 4 is installed on the positioning groove 201, so that the liquid storage component 4 is not easy to affect the heat dissipation performance of the cover 2. The electrolyte water filled in the liquid storage component 4 can better exchange heat with the cover 2, which is convenient for the heat dissipation of the lead-carbon battery.

[0055] like Figure 7 to Figure 9As shown, in order to improve the cooling effect of steam, a heat exchange plate 403 is arranged between the first shell 401 and the second shell 402. One end of the heat exchange plate 403 is located inside the first shell 401, and the other end is located inside the second shell 402. The heat exchange plate 403 facilitates heat exchange between the electrolyte water in the first shell 401 and the steam in the second shell 402, so as to improve the steam and cooling speed. The heat exchange plate 403 is arranged in an S shape, and the heat exchange plate 403 distributes the space in the second shell 402 into an S-shaped steam route. When the steam enters the second shell 402, the steam travels along the S-shaped steam route and exchanges heat with the outer wall of the heat exchange plate 403, thereby reducing the temperature of the steam and cooling the steam into electrolyte water. At the end of the S-shaped steam route, a solenoid valve 1 is arranged. When the amount of electrolyte water in the second shell 402 reaches a certain level, the solenoid valve 1 opens, and the electrolyte water enters the first shell 401.

[0056] The solenoid valve 1 may be specifically an induction valve, which senses the amount of electrolyte water in the second shell 402 , and when the amount of water exceeds a certain level, the induction valve opens.

[0057] like Figure 7 to Figure 9 As shown, the air intake assembly 6 includes an air intake pipe 601, which is used to connect the battery housing 1 and the second housing 402. A flow valve 602 is provided on the air intake pipe 601, and the flow valve 602 is used to record the flow rate of steam entering the second housing 402. The amount of electrolyte water lost in the lead-carbon battery can be converted according to the steam flow rate.

[0058] like Figure 2 to Figure 6 As shown, the circulating cooling component 5 includes a heat exchange tube 501, and the two ends of the heat exchange tube 501 are respectively provided with a heat exchange tube inlet end 5011 and a heat exchange tube outlet end 5012, and the heat exchange tube inlet end 5011 and the heat exchange tube outlet end 5012 are both connected to the liquid storage component 4 to form an electrolyte water circulation pipeline. During the circulation of the electrolyte water in the circulation pipeline, it can take away part of the heat of the lead-carbon battery, so that the lead-carbon battery has lower heat during use and is not prone to overheating. A plurality of first liquid outlet nozzles 502 are fixedly connected to the heat exchange tube 501, and a first mounting hole 102 matching the first liquid outlet nozzle 502 is opened on the inner wall of the battery housing 1. The first liquid outlet nozzle 502 is located in the first mounting hole 102 and is sealed with the outer wall of the first mounting hole 102. That is, when the first liquid outlet nozzle 502 is located in the first mounting hole 102, the electrolyte in the battery housing 1 will not flow out from the first mounting hole 102. The first liquid outlet nozzle 502 can spray electrolyte water into the electrolyte, and the amount of electrolyte water sprayed out is equal to the amount of electrolyte water lost, thereby ensuring the ratio of sulfuric acid and electrolyte water in the electrolyte and avoiding an imbalance in the ratio of sulfuric acid and electrolyte water.

[0059] The flow rate is recorded by the flow valve 602, and the amount of electrolyte water lost is converted according to the recorded flow rate. The battery housing 1 is replenished according to the loss amount, which can ensure that the ratio of sulfuric acid and water in the electrolyte will not be unbalanced, so that the electrolyte in the lead-carbon battery always maintains a suitable ratio, thereby avoiding the situation in which the lead-carbon battery's service life is affected by the reduction of electrolyte water during use.

[0060] like Figures 1 to 11 As shown, the lead-carbon battery also includes an impurity treatment component 7 installed between the battery housing 1 and the liquid storage component 4. The impurity treatment component 7 can extract electrolyte water from the electrolyte, and the electrolyte water is pumped into the impurity treatment component 7. The lower end of the heat exchange tube 501 is fixedly connected with a second liquid outlet nozzle 503, the second liquid outlet nozzle 503 is in communication with the impurity treatment component 7, and the first mounting hole 102 is also matched with the second liquid outlet nozzle 503. The second liquid outlet nozzle 503 is used to spray electrolyte water, and each second liquid outlet nozzle 503 has a different orientation and is used to spray electrolyte in different directions, thereby stirring the electrolyte in the battery housing 1 and making the electrolyte in the battery housing 1 more uniform.

[0061] A monitoring component is also provided in the battery housing 1, and the monitoring component is used to monitor the state of the electrolyte in the battery housing 1. When the lead-carbon battery is not used for a long time, the electrolyte water and sulfuric acid in the electrolyte in the lead-carbon battery will precipitate. At this time, the electrolyte is extracted through the impurity treatment component 7, and the extracted electrolyte water is sprayed out from the second liquid outlet 503, and the electrolyte is stirred to make the precipitated electrolyte uniform. The lead-carbon battery can be used again to avoid electrolyte precipitation and shorten the service life of the lead-carbon battery.

[0062] like Figure 2-3 As shown, the impurity treatment assembly 7 includes an impurity treatment part 701, a first connecting pipe 702 is connected between the impurity treatment part 701 and the battery housing 1, and a second connecting pipe 703 is connected between the impurity treatment part 701 and the first housing 401. The impurity treatment part 701 can filter the extracted electrolyte, filter out the amorphous fine floccules in the electrolyte, and filter out the impurities in the electrolyte to avoid the formation of floating anode mud. A micro pump 704 is provided on the second connecting pipe 703 to provide power for the impurity treatment assembly 7 to extract the electrolyte.

[0063] As the electrolyte flows, the floating anode mud adheres to the electrode assembly 3, which not only affects the chemical composition in the electrode assembly 3, but also forms protruding granular crystals on the electrode assembly 3, affecting the normal use of the lead-carbon battery. Some floating objects are not easy to settle. After the electrolyte settles, some floating objects float on the upper end of the electrolyte. During the extraction process, they are drawn into the impurity treatment assembly 7 together with the electrolyte and filtered by the impurity treatment unit 701.

[0064] like Fig.10As shown, the impurity treatment part 701 includes a third shell 7011, one end of the first connecting pipe 702 is located in the middle of the third shell 7011, and a duckbill valve 7012 is arranged inside the third shell 7011, and the duckbill valve 7012 is located at the lower end of the first connecting pipe 702. The inner wall of the third shell 7011 is provided with a filter layer 7013 matching the second connecting pipe 703, and the filter layer 7013 is arranged on the inner top wall of the impurity treatment part 701. When the first connecting pipe 702 transports the electrolyte into the third shell 7011, it is filtered by the filter layer 7013, and then transported to the second connecting pipe 703 after filtration, and then the second connecting pipe 703 transports the treated electrolyte to the first liquid outlet 502 and sprays it out. Impurities will remain in the third shell 7011, and due to gravity, the impurities will move downward and pass through the duckbill valve 7012, and be located at the lower end of the duckbill valve 7012. The duckbill valve 7012 can prevent the impurities from flowing back to the upper end of the duckbill valve 7012 as much as possible. At the same time, a backflow prevention structure is provided on the first connecting pipe 702 to prevent the impurities in the third housing 7011 from flowing back into the first connecting pipe 702.

[0065] like Fig.10 As shown, the third housing 7011 is provided with an observation window 7014, through which the lower end of the duckbill valve 7012 can be observed, that is, the situation of impurities in the third housing 7011 can be observed, and the use status and use time of the lead-carbon battery can be judged according to the situation of the impurities, which is convenient for judging the use status of the lead-carbon battery, and for understanding the use status of the lead-carbon battery, and reducing the use of lead-carbon battery monitoring equipment. That is, when judging the state of the lead-carbon battery, not only the use time and state can be judged by appearance, but also the state of the battery can be judged by the amount of impurities observed through the observation window 7014.

[0066] In order to ensure that the amount of electrolyte does not decrease when the electrolyte passes through the impurity treatment component 7, the impurity treatment component 7 is filled with electrolyte in the initial state. During the circulation of the electrolyte, the electrolyte will not be reduced. When adding electrolyte, generally the amount required for the lead-carbon battery plus the amount required for the impurity treatment component 7 is added, the electrolyte is added to the lead-carbon battery, and then circulated through the impurity treatment component 7, so that the impurity treatment component 7 is filled with electrolyte.

[0067] like Figure 1 to Figure 3 As shown, a micro-electric module 8 is detachably mounted on the upper end of the cover 2, which is used to power the electronic components on the lead-carbon battery. When the lead-carbon battery is not used for a long time, precipitation occurs inside the electrolyte, or the water in the electrolyte evaporates due to long-term storage. Before charging, the electronic components can be powered by the micro-electric module 8 to monitor the lead-carbon battery before use, ensuring that the battery is in good condition before using the lead-carbon battery.

[0068] Specifically, the micro-electric module 8 can supply power and monitoring components to the liquid storage component 4 and the impurity treatment component 7. First, the monitoring component monitors the state of the electrolyte in the lead-carbon battery. If precipitation occurs, the electrolyte is circulated through the impurity treatment component 7 so that the ejected electrolyte can stir the electrolyte in the battery housing 1. If the monitoring component detects that the liquid level of the electrolyte in the battery housing 1 drops, the corresponding electrolyte water is replenished into the battery housing 1 through the liquid storage component 4, so that the electrolyte in the lead-carbon battery is within the normal range before charging and discharging operations are performed, which is beneficial to extending the service life of the battery. After use, the micro-electric module 8 can be disassembled.

[0069] During daily use of the lead-carbon battery, if the lead-carbon battery is overheated, the electrolyte water in the electrolyte of the lead-carbon battery will be preheated and evaporated into water vapor. The water vapor is drawn into the second shell 402 through the air intake assembly 6, and heat is exchanged with the heat exchange plate 403 to achieve cooling of the water vapor. After the water vapor is cooled, the water vapor will become electrolyte water and flow into the first shell 401. The flow valve 602 records the flow of water vapor and converts it into the loss of electrolyte water. The first shell 401 compensates the loss of electrolyte water into the battery shell 1. Keeping the electrolyte ratio from being unbalanced can extend the service life of the lead-carbon battery, and at the same time, it can also increase the number of high-power uses of the lead-carbon battery and reduce the consumption of electrolyte in the high-power loss process of the lead-carbon battery.

[0070] After the lead-carbon battery has been used for a period of time, there are impurities in the electrolyte. When the impurities need to be processed, the electrolyte is circulated through the impurity processing component 7, and the first liquid outlet 502 flows out the electrolyte, and the impurities in the electrolyte are filtered. The impurities remain in the impurity processing component 7, and the impurities can be seen by the naked eye, so that the current battery usage status can be judged to determine whether the lead-carbon battery can continue to be used. It is not necessary to disassemble the lead-carbon battery or use an instrument to detect the lead-carbon battery. In general, the impurities in the electrolyte are processed when the lead-carbon battery is not in use, and the lead-carbon battery needs to be fully charged, and the saturated electrolyte concentration of the lead-carbon battery can be restored to the original solution. After the circulation, a clear electrolyte is obtained. At this time, the height of the liquid level added to the lead-carbon battery is definitely not enough. The height of the electrolyte is judged according to the monitoring component. If it is not enough, a part of the electrolyte water can be added to make the electrolyte level in a normal state. Extend the service life of the lead-carbon battery.

[0071] When the lead-carbon battery is not used for a long time, the electrolyte precipitates. The electrolyte is circulated through the impurity treatment component 7 and sprayed out through the first liquid outlet nozzle 502. Multiple first liquid outlet nozzles 502 spray the electrolyte in different directions to stir the electrolyte to make it uniform before the lead-carbon battery is used.

[0072] If you want to completely replace the electrolyte, disassemble the lead-carbon battery, pour out the electrolyte, and then add electrolyte water to the battery shell 1 through the liquid storage component 4, and then charge it with a low current charger. The charging current is adjusted to 1% of the battery capacity and 0.01C current charging. When dense bubbles appear in the lead-carbon battery, you can stop charging, extract the electrolyte water in the lead-carbon battery back to the liquid storage component 4, and add standard electrolyte to the battery shell 1. After fully charging again, use a hydrometer to measure the specific gravity of the electrolyte. The degree of danger in the process of completely replacing the electrolyte is greatly reduced, and there is no need to add electrolyte water by yourself. The electrolyte water after charging can be drawn back to the liquid storage component 4 and recycled, and the waste of electrolyte water in the process of replacing the electrolyte is minimized.

[0073] As another embodiment of the present invention, Fig.14 As shown, the liquid storage component 4 is arranged on the side wall of the battery housing 1, and a connecting pipe is connected between the liquid storage component 4 and the battery housing 1. The connecting pipe makes the liquid storage component 4 and the battery housing 1 form a communicating vessel, that is, when the gravitational acceleration g≠0 and its value relative to each part in the communicating vessel is equal, the same liquid with uniform density is injected into the communicating vessel. When the liquid is stationary relative to the communicating vessel, the liquid levels in each container of the communicating vessel remain level. When the electrolyte water in the battery housing 1 evaporates, the liquid level is lower than the liquid level of the connecting pipe in the battery housing 1, and the electrolyte water in the liquid storage component 4 will be automatically replenished. This does not require the electrolyte air intake component 6 to record and convert the steam flow, which can greatly reduce the cost of the replenishment device and the cost of the lead-carbon battery.

[0074] As another embodiment of the present invention, Fig.12 As shown, the heat exchange tube 501 is a built-in pipeline 103, the built-in pipeline 103 is connected to the liquid storage component 4, and the battery shell 1 and the built-in pipeline 103 are integrally formed. The use of a special battery shell 1 can reduce the trouble of assembling the lead-carbon battery. The built-in pipeline 103 can also enhance the strength of the battery shell 1. The built-in pipeline 103 is in direct contact with the electrolyte, and the heat exchange effect is better.

[0075] As another embodiment of the present invention, Fig.13As shown, a secondary liquid storage tank 9 is installed on one side of the battery housing 1, and a third connecting pipe 10 is connected between the secondary liquid storage tank 9 and the battery housing 1. The secondary liquid storage tank 9 and the third connecting pipe 10 cooperate to extract the electrolyte in the battery housing 1. When there are too many impurities in the electrolyte, it is necessary to use a precipitation method to replace the electrode liquid in the lead-carbon battery. First, the impurities in the electrolyte are precipitated, and then the clear electrolyte is pumped into the secondary liquid storage tank 9 through the third connecting pipe 10 and the secondary liquid storage tank 9. The lead-carbon battery is disassembled, the impurities on the bottom wall of the lead-carbon battery are processed, and then the electrolyte is transported to the battery housing 1 through the secondary liquid storage tank 9, and an equal amount of electrolyte water is added according to the cooperation of the monitoring component and the liquid storage component 4.

[0076] Preferably, the auxiliary liquid storage tank 9 is initially filled with electrolyte. After the electrolyte in the battery housing 1 is pumped into the auxiliary liquid storage tank 9, the electrolyte is transported according to the specifications of the lead-carbon battery, and the electrolyte matching the specifications of the lead-carbon battery is transported to keep the amount of electrolyte in a normal state. At this time, the liquid storage assembly 4 and the auxiliary liquid storage tank 9 are not required to compensate for the electrolyte water, and the reduction of the specific gravity of the electrolyte water can be avoided as much as possible.

[0077] The present invention can collect electrolyte in case of replacement of electrolyte through auxiliary liquid storage tank 9. When cleaning impurities in electrolyte, only battery case 1 and cover body 2 of lead-carbon battery need to be disassembled to take out impurities in battery case 1, thus avoiding contact between human and electrolyte as much as possible, avoiding harm caused by electrolyte to human, and improving safety in the process of cleaning impurities.

[0078] like Figure 1 As shown, a method for preparing a lead-carbon battery in one embodiment of the present invention comprises the following steps:

[0079] S1, assembling the electrode assembly 3 into the battery housing 1, and the electrode assembly 3 is arranged horizontally;

[0080] S2, adding electrolyte into the battery housing 1 according to the lead-carbon battery, and installing the cover 2 on the battery housing 1;

[0081] The amount of electrolyte added to the lead-carbon battery is the standard amount plus an extra amount;

[0082] S3, installing the liquid storage assembly 4 and the circulating cooling assembly 5 on the cover body 2, so that the liquid storage assembly 4 and the circulating cooling assembly 5 are connected to obtain a water-cooled lead-carbon battery;

[0083] S4, installing an air intake assembly 6 on the battery housing 1, and connecting the air intake assembly 6 to the liquid storage assembly 4, so that the liquid storage assembly 4 can extract steam and recycle it;

[0084] S5. Install the impurity treatment component 7 on the battery housing 1, connect one end of the impurity treatment component 7 to the circulating cooling component 5, and circulate the electrolyte so that the impurity treatment component 7 is filled with electrolyte, and the electrolyte in the impurity treatment component 7 is equal to the additional amount;

[0085] S6, testing, testing the function of the lead-carbon battery, and testing whether the liquid storage component 4, the air intake component 6, the circulating cooling component 5 and the impurity treatment component 7 can operate normally.

[0086] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0087] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lead-carbon battery, comprising a battery housing and an electrode assembly installed in the battery housing, wherein the upper end of the battery housing is covered with a cover, characterized in that: The battery housing has a first cavity, and the lead-carbon battery further comprises: A liquid storage component, the liquid storage component comprises a first shell and a second shell, the first shell and the second shell are both hollow, the first shell and the second shell are integrally formed, and the first shell is filled with electrolyte water; A circulating cooling component, which is installed inside the first cavity and is used to circulate electrolyte water and facilitate heat dissipation of the lead-carbon battery; An air intake assembly, the air intake assembly is used to transport the steam generated by the lead-carbon battery into the second shell and realize the cooling of the steam; The circulating cooling assembly includes a heat exchange tube, and a plurality of first liquid outlet nozzles are installed on the heat exchange tube, and the electrolyte water in the first shell can be transported to the battery shell through the first liquid outlet nozzles; The heat exchange tube has a heat exchange tube inlet end and a heat exchange tube outlet end, and the heat exchange tube inlet end and the heat exchange tube outlet end are both connected to the liquid storage component to form an electrolyte water circulation pipeline; It includes an impurity treatment component, which is used to extract electrolyte water in the battery housing and filter impurities in the electrolyte water; The impurity treatment assembly includes a first connecting pipe and a second connecting pipe, one end of the first connecting pipe is connected to the battery housing; A plurality of second liquid outlet nozzles are installed at the lower end of the heat exchange tube for spraying electrolyte, and the plurality of second liquid outlet nozzles are respectively oriented to different positions for spraying electrolyte in different directions; One end of the second connecting tube passes through the liquid storage assembly and communicates with the second liquid outlet nozzle, and an impurity treatment portion is provided between the first connecting tube and the second connecting tube; The second connecting pipe is provided with a micro pump; The impurity processing part includes a third shell, one end of the first connecting pipe is located in the middle of the third shell, a duckbill valve is arranged inside the third shell, and the duckbill valve is located at the lower end of the first connecting pipe; The inner wall of the third shell is provided with a filter layer matching the second connecting pipe, and the third shell is provided with an observation window.

2. A lead-carbon battery according to claim 1, characterized in that: A heat exchange plate is arranged between the first shell and the second shell, one end of the heat exchange plate is located in the first shell, and the other end of the heat exchange plate is located in the second shell; The heat exchange fins are arranged in an S shape, so that the steam entering the second shell moves along the direction in which the heat exchange fins are arranged.

3. A lead-carbon battery according to claim 1 or 2, characterized in that: A plurality of connecting ears are fixedly connected to the outer side of the first shell, and a through hole is formed on the connecting ears; The cover body is provided with a positioning groove matching with the first shell body, the bottom wall of the positioning groove is provided with a threaded hole matching with the through hole, a bolt is installed in the through hole, and the bolt passes through the through hole and is threadedly connected with the threaded hole.

4. A lead-carbon battery according to claim 1, characterized in that: The air intake assembly includes an air intake pipe and a flow valve installed on the air intake pipe, one end of the air intake pipe is connected to the battery housing, and the other end is connected to the second housing; The flow valve is used to measure the steam flow rate of steam in the battery housing entering the second housing, convert the lost electrolyte water according to the steam flow rate, and compensate for the lost electrolyte water through the circulating cooling component.

5. A lead-carbon battery according to claim 1, characterized in that: It comprises a micro-electric module, which is used to supply power to electronic components on the lead-carbon battery.

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