CN214625153U - Lead-acid battery activation device - Google Patents

Abstract

The utility model discloses a lead acid battery activation device, include: the detection circuit module is connected with the lead-acid battery and is used for detecting the state of the lead-acid battery; the activator adding module is arranged corresponding to the lead-acid battery and is used for adding an activator to the lead-acid battery; the charging circuit module is connected with the lead-acid battery and used for activating an activator to react through output current; the discharge circuit module is connected with the lead-acid battery and is used for promoting active ingredients of the activator to penetrate into the lead-acid battery; and the controller module is electrically connected with the detection circuit module, the activator adding module, the charging circuit module and the discharging circuit module respectively. The utility model discloses controller module adds module, charging circuit module, discharge circuit module according to the state of battery in the control activator and realizes pouring into activator, activation, discharge, has reduced manual operation to can restore the battery according to actual conditions, have better restoration activation effect, compare with the technique of the same kind and have obvious advantage.

Description

Lead-acid battery activation device

Technical Field

The utility model relates to a battery repair field, especially a lead acid battery activation device.

Background

From the theory of porous electrodes, the polar plate of the lead-acid storage battery belongs to a two-phase porous electrode (a fully-immersed diffusion electrode). When the electrode works, the electrolyte permeates into the pores of the porous electrode, and electrode reaction is carried out on a liquid-solid two-phase interface. In this case, the contact area between the active material on the electrode plate and the electrolyte is large, and the electrochemical reaction is likely to occur during normal charge and discharge. However, because the application state is complicated and changeable, it is difficult to ensure the theoretical "normal charge and discharge" condition. Most lead-acid storage batteries, especially fixed batteries in a float charge state, undergo irreversible sulfation to different degrees in use, i.e., a layer of coarse, hard and insoluble lead sulfate recrystallization crystals is formed on the polar plates. It blocks the capillary pores and the outer surface of the plate, thus preventing the electrolyte from reacting with the active substance, reducing the action of the active substance and finally causing the failure of the battery capacity.

Lead-acid batteries, which are normally used, form lead sulfate crystals during discharge and can be relatively easily reduced to lead during charging. If the battery is used and maintained badly, for example, left unused for a long time or frequently under-charged, over-discharged, etc., a coarse and hard lead sulfate crystal is gradually formed on the negative electrode. Such lead sulfate crystals are non-conductive and are difficult to decompose in conventional charging regimes. This phenomenon is called "irreversible sulfation" and causes an increase in the internal resistance and a decrease in the capacity of the battery, and the main reason for its formation is that the recrystallization phenomenon of lead sulfate causes coarse crystals to form and then the coarse crystals are reduced in solubility and thus cannot be decomposed.

The existing method for repairing the battery mainly depends on manual operation, and the battery cannot be repaired according to the actual condition of the battery, so that the repairing and activating effects are not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that above-mentioned prior art exists, provide a lead acid battery activation device, it can smash the decomposition rapidly with irreversible thick hard sulphate crystal for the battery resumes normal user state.

The utility model discloses a lead acid battery activation device, include:

the detection circuit module is connected with the lead-acid battery and is used for detecting the state of the lead-acid battery;

the activator adding module is arranged corresponding to the lead-acid battery and is used for adding an activator to the lead-acid battery;

the charging circuit module is connected with the lead-acid battery and used for activating the activator to react through output current;

the discharge circuit module is connected with the lead-acid battery and is used for promoting the active ingredients of the activator to penetrate into the lead-acid battery;

and the controller module is respectively and electrically connected with the detection circuit module, the activator adding module, the charging circuit module and the discharging circuit module.

Preferably, the apparatus further comprises: the device shell is provided with a key, a display screen and an indicator light, and the key, the display screen and the indicator light are respectively electrically connected with the controller.

Preferably, the activator addition module comprises:

a plurality of liquid storage tanks for containing the activating agent;

the water pumps are respectively connected with the liquid storage tanks and are used for extracting the activating agent from the liquid storage tanks;

the electric control valve is connected with the water pump and is used for controlling an activating agent to be added into the lead-acid battery;

the water pump and the electric control valve are respectively connected with the controller module.

Preferably, the liquid storage tank is an activator raw material tank and is used for containing the raw materials for forming the activator;

the electric control valves are hybrid electric control valves, are respectively connected with the water pumps and are used for mixing the extracted raw materials and adding the mixed raw materials to the lead-acid battery.

Preferably, the apparatus further comprises: the temperature sensor is movably installed on the lead-acid battery and electrically connected with the controller module and used for detecting and feeding back temperature information of the lead-acid battery.

Preferably, the device further comprises a camera electrically connected with the controller module and used for shooting an image of the appearance of the lead-acid battery, and the controller module is used for analyzing the image to judge the state of the lead-acid battery.

The utility model discloses following beneficial effect has at least:

the utility model discloses a detection circuitry module detects lead acid battery's state and feeds back to the controller module, and the controller module adds module, charging circuit module, discharge circuit module based on this control activator and realizes pouring into activator, activation, discharge, and the device has reduced manual operation to can restore the battery according to actual conditions, have better restoration activation effect, compare with the similar technique and have obvious advantage.

Other beneficial effects of the utility model are detailed in the detailed description of the embodiment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a connection structure of a lead-acid battery activation device disclosed in an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the utility model discloses a lead-acid battery activation device, include:

and the detection circuit module is connected with the lead-acid battery and is used for detecting the state of the lead-acid battery. Preferably, the detection circuit module includes existing detection devices such as a voltmeter and the like, and is used for detecting parameters such as voltage, specific gravity, capacity and the like of the battery, which are not illustrated herein. The controller module can receive and interpret these parameters and select an appropriate activation mode based on these parameters, including activator addition, charging and discharging, and the like.

And the activator adding module is arranged corresponding to the lead-acid battery and is used for adding an activator to the lead-acid battery. The battery activated by the device can also adopt the traditional manual mode of adding the activating agent, but the activating agent is added to each mechanism and equipment in the module, so that the labor can be saved, the device is more accurate, and the better battery repairing effect can be obtained.

And the charging circuit module is connected with the lead-acid battery and is used for activating the activator to react through output current. The module can further activate the reaction of the activator by generating large current with special waveform, thoroughly remove and prevent for a long time to inhibit the lead sulfate crystal from being re-aggregated. The existing charging circuit structure can be adopted, and the description is omitted.

And the discharge circuit module is connected with the lead-acid battery, discharges the battery and can promote the active ingredients of the activator to deeply penetrate into the lead-acid battery. Specifically, the existing discharge circuit structure can be adopted, and the description is omitted.

The controller module can adopt equipment with a data processing function, such as a single chip microcomputer with the existing model, and is respectively and electrically connected with the detection circuit module, the activator adding module, the charging circuit module and the discharging circuit module.

In some embodiments of the present invention, the apparatus further comprises: the device shell can play a role in protecting the internal circuit. The device shell is provided with a key, a display screen and an indicator light, the key, the display screen and the indicator light are respectively electrically connected with the controller, and a user can master the progress of the control of the activation process by operating or observing the parts.

In some embodiments of the invention, the activator addition module comprises:

a plurality of liquid storage tanks for containing the activating agent; the liquid storage tanks are respectively connected with a plurality of water pumps and used for extracting the activating agent from the liquid storage tanks under the control of the controller module, the extracted activating agent is conveyed to the electric control valve through equipment such as pipelines, and the controller module can control the electric control valve to be opened, so that the activating agent is added to the lead-acid battery. The automatic adding of the activating agent is realized by the structure, the labor cost is reduced, and meanwhile, the controller module can also control when the adding is started, the adding amount is large and the like according to the state of the battery, so that the battery has a good activating effect.

In some embodiments of the utility model, the activator can adopt current each type of activator, and wherein some activators shelf life is shorter, but its each component shelf life that does not mix is longer, because the utility model discloses a shelf life of activator has been prolonged to the mode of now mixing now with, guarantees the activation effect when practicing thrift the cost. Specifically, the liquid storage tank is an activator raw material tank and is used for containing the raw materials for forming the activator. The electric control valves are hybrid electric control valves, are respectively connected with the water pumps and are used for mixing the extracted raw materials and adding the mixed raw materials to the lead-acid battery. Preferably, mix the automatically controlled valve and mainly constitute by case, the woven pipe of intaking and installation gadget, its theory of operation is: generally, the bottom of the valve core consists of a plurality of feeding holes which respectively correspond to raw materials with different components, and at least one output hole is used for discharging water inside the valve core. All holes of the valve core are provided with sealing rings, the valve core and the main body are guaranteed to be in a sealing state, the controller module can control the covering pieces which can cover all holes of the valve core to move to control the opening and closing states of all the valves, and when the holes are sealed, no water or raw materials enter the valve core at the moment. The size of the hole is adjusted by moving the cover sheet, so that the proportion of the effective components of the activator is adjusted, and the adaptive activator is added for batteries in different states.

In some embodiments of the present invention, the apparatus further comprises: the temperature sensor is movably installed on the lead-acid battery and electrically connected with the controller module and used for detecting and feeding back temperature information of the lead-acid battery. Temperature information is also an important parameter that affects the controller module activation control flow.

In some embodiments of the present invention, the device further comprises a camera electrically connected to the controller module for capturing an image of the appearance of the lead-acid battery, wherein the controller module is used for analyzing the image to determine the state of the lead-acid battery. The image analysis technology adopts the existing analysis model, and the details are not repeated herein.

In some embodiments of the present invention, the following should be noted in the activation process for the lead-acid battery:

one is the addition of an activator. The addition amount of the activating agent is according to the addition proportion, under the normal condition, 1-1.2 ml of the activating agent is added per ampere hour per monomer (namely, the addition amount of each 2V cell is the product of the capacity of the battery and the addition proportion), the battery with the original capacity exceeding 75% can be added according to the proportion of 0.4-0.8 ml, if the battery is seriously vulcanized, the activating agent can be added according to the proportion of 1.5-2 ml. For a liquid-rich battery, before the liquid-rich battery is added, the electrolyte condition in the battery is analyzed through a camera image, if the electrolyte is more, a part of the electrolyte needs to be taken out so as to add an activating agent. The activator should be added slowly to the cell to avoid the electrolyte from overflowing due to violent reaction in the cell. For large batteries, more activating agents need to be added, and the activating agents can be added for several times, so that the violent reaction caused by one-time addition is avoided. For the sealed valve-controlled equal-barren solution battery, after the activator is added, the liquid level is preferably 1-2 cm higher than the polar plate, and deionized water is supplemented when the liquid level is not enough. After the activator is added, the battery is required to be kept still for 1 hour or more so that the active ingredients of the activator are sufficiently diffused in the battery. And after the standing is finished, the liquid level in the battery is checked again and is correspondingly processed.

The second is the activation of the battery. The activation current is adjusted at 0.1-0.3C according to the vulcanization condition of the battery, and can be about 0.15C if the battery condition is better. The current is gradually increased according to the performance condition of the battery, and the activation current cannot be reached at once so as to avoid the damage caused by the sudden change of the internal resistance of the battery; if the battery needing to be activated is large in capacity (more than 1500 ampere hours), the activation equipment cannot provide 0.15C current, the current can be started from 180 amperes, the corresponding activation time is prolonged, the battery temperature is still used as a control condition in the later activation period, and the activation end mark is the same as that of a battery with the ordinary capacity. If the difference of the whole battery group is large, the laggard batteries found in the detection process can be singly grouped and activated in advance, and the activation current can be properly increased and adjusted between 0.3 and 0.5 ℃; if the battery capacity is large, the battery is activated for a period of time after the battery is activated by referring to the above rule. The internal resistance of part of the battery is very high, the voltage is very high (the voltage of a single battery exceeds more than 3V) under the condition of very small current, which is a normal phenomenon, and at the moment, the current is gradually increased from the small current until the voltage of the battery is restored to a normal range. Since the remaining battery power is discharged already at the time of the original capacity check, the battery can receive an activation current larger than a normal charging current without severe bubbling and temperature rise. The activation is carried out for about 2-3 hours (if most batteries do not have violent bubbling of electrolyzed water or the temperature exceeds the control line, the activation time can be properly prolonged), and then the activation current is reduced to about 0.1 ℃. As the activation time is prolonged, the cell voltage and specific gravity should be gradually increased. Bubbling during activation is a normal phenomenon (fine, continuous bubbles emerging from the plates). In the later period of activation, part of the cells will be strongly bubbled by the electrolyzed water, and whether the bubbles are mainly generated at the bus bars should be observed, if so, the current should be reduced. In the later period of activation, the battery temperature will gradually rise due to the low conversion rate of the current, and the current should be adjusted according to the battery temperature (the internal temperature of the battery should be controlled below 45 ℃). The normal battery heating is that the whole battery body uniformly heats, local overheating can be caused by serious local vulcanization, but can be eliminated quickly, for example, the battery is locally overheated for a long time (especially appearing near a bus bar and a tab), and the battery generally does not have a recovery condition and should be removed in the initial charging step of battery inspection. After the base voltage of the battery is established (the voltage of the single body is more than 2.45V at the current of 0.1C), the current of 0.05C-0.1C can be maintained to wait for the specific gravity of the electrolyte to rise. When the battery is full of capacity, the voltage of the single body is between 2.6 and 2.9V under the current of 0.1C, and the single body is abnormal when being too high or too low. If the voltage of the battery terminal slowly falls after reaching a certain peak value in the activation process, the voltage slowly rises to the range of 2.6-2.9V after falling to a certain degree, which is a normal phenomenon. If the terminal voltage of the battery rapidly (or slowly) falls after reaching a certain peak value, the voltage does not rise any more and even continuously falls no matter how the terminal voltage is activated, and the internal short circuit of the battery is caused (the battery with internal active substances falling off or overcharging for a long time is frequently generated, and the local heat generation phenomenon of a battery body is usually accompanied when the battery is activated). The specific gravity of the electrolyte is longer in rising time, the specific gravity of the normally recovered battery electrolyte is about 1.25-1.3, and the specific gravity of some brand batteries can be lower according to different battery specific gravity parameters of various battery plants.

Activation may be terminated when the battery satisfies the following conditions: the voltage of the battery must be recovered to normal (the voltage of the single body should be between 2.6 and 2.9V under the current of 0.1 ℃; on the premise that the voltage of the battery recovers to be normal, the proportion of electrolyte in the battery is preferably considered: when the specific gravity of the battery reaches the normal condition (between 1.25 and 1.3) and is kept unchanged for more than 3 hours, the activation can be stopped; under the premise that the voltage of the battery recovers to be normal, if the specific gravity of the battery cannot recover to be normal, the activation charging capacity can be considered. When the activation charge amount satisfies: the activation can be stopped when the first activation is 2.2C-2.5C, the second activation is 1.5C-1.8C, and the third activation is 1.2C-1.5C.

And thirdly, discharging the battery. The discharge is an important ring in the activation process, and not only can the activation effect be checked, but also the effective components of the activator can be promoted to be deeper into the battery through the discharge. The cell should be left to stand for a period of time (not less than 1 hour) before discharging so that the electrolyte in the cell is evenly distributed and the temperature of the cell should be reduced to below 30 ℃. The discharge method should be consistent with the initial discharge at the time of detection. In the case of not being time-critical, the 10-hour discharge rate should be selected preferentially, so that the detected capacity is the most accurate (the large-current discharge can only display the recovery of the active material on the surface of the electrode plate, and the recovery of the active material in the deep layer cannot be verified). When discharging, the battery cover can be covered, so that the excessive loss of water in the battery during discharging is avoided. The discharge process should be recorded well, and the initial discharge record can be compared. When the discharge condition is smooth and the capacity display reaches the full capacity, the discharge should be stopped to protect the battery. The discharge capacity exceeds the nominal capacity of the battery because the battery leaves the factory with a certain redundant (guaranteed) capacity. If some batteries in the discharge have limited recovery, the batteries are taken out of the battery pack after the batteries reach the stopping voltage, and other batteries continue to be discharged so as to know the recovery condition of all the batteries. Conditional agents may check the internal resistance of the battery before and after discharge (or estimate the internal resistance of the battery by discharge voltage drop) by purchasing an internal resistance detection device for the battery, and may compare it with that before activation. If there is new battery internal resistance data, the battery condition can be grasped more accurately. After the discharge is finished, the recovery condition of the battery is judged according to the activation data and the discharge data. For the battery with better recovery condition, the battery is fully charged by adopting a normal battery charging mode, and the next self-discharge check and the preparation of original environment use simulation are carried out; for cells with a lagging recovery condition, the cells can be activated again according to the activation step.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims (6)

1. A lead-acid battery activation device, comprising:

the detection circuit module is connected with the lead-acid battery and is used for detecting the state of the lead-acid battery;

the activator adding module is arranged corresponding to the lead-acid battery and is used for adding an activator to the lead-acid battery;

the charging circuit module is connected with the lead-acid battery and used for activating the activator to react through output current;

the discharge circuit module is connected with the lead-acid battery and is used for promoting the active ingredients of the activator to penetrate into the lead-acid battery;

and the controller module is respectively and electrically connected with the detection circuit module, the activator adding module, the charging circuit module and the discharging circuit module.

2. The lead-acid battery activation device of claim 1, further comprising: the device shell is provided with a key, a display screen and an indicator light, and the key, the display screen and the indicator light are respectively electrically connected with the controller.

3. The lead acid battery activation device of claim 1, wherein the activator addition module comprises:

a plurality of liquid storage tanks for containing the activating agent;

the water pumps are respectively connected with the liquid storage tanks and are used for extracting the activating agent from the liquid storage tanks;

the electric control valve is connected with the water pump and is used for controlling an activating agent to be added into the lead-acid battery;

the water pump and the electric control valve are respectively connected with the controller module.

4. The lead-acid battery activation apparatus of claim 3, wherein the reservoir is an activator raw material reservoir for holding constituent raw materials of the activator;

the electric control valves are hybrid electric control valves, are respectively connected with the water pumps and are used for mixing the extracted raw materials and adding the mixed raw materials to the lead-acid battery.

5. The lead-acid battery activation device of claim 1, further comprising: the temperature sensor is movably installed on the lead-acid battery and electrically connected with the controller module and used for detecting and feeding back temperature information of the lead-acid battery.

6. The lead-acid battery activation device of claim 1, further comprising a camera electrically connected to the controller module for capturing an image of the appearance of the lead-acid battery, the controller module for analyzing the image to determine the status of the lead-acid battery.

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