CN112038714A - Ultrasonic activation method and device for storage battery - Google Patents
Ultrasonic activation method and device for storage battery Download PDFInfo
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- CN112038714A CN112038714A CN202010704090.8A CN202010704090A CN112038714A CN 112038714 A CN112038714 A CN 112038714A CN 202010704090 A CN202010704090 A CN 202010704090A CN 112038714 A CN112038714 A CN 112038714A
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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
- H01M10/4242—Regeneration of electrolyte or reactants
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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
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- 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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Abstract
The invention discloses an ultrasonic activation method for a storage battery, which relates to the technical field of storage battery maintenance, and comprises the following steps: s1, carrying out nuclear capacity on the storage battery; s2, placing the storage battery into an ultrasonic water bath test box, and adding water until the storage battery is not submerged; s3, connecting a storage battery monitoring system with a storage battery, and connecting an activation instrument with the storage battery; s4, starting a circulating stirring and temperature control switch of the ultrasonic water bath test box, and adjusting the temperature of the water bath; s5, starting a storage battery monitoring system; s6, starting an ultrasonic control switch of the ultrasonic water bath test box, and adjusting the ultrasonic frequency; and S7, starting an activation instrument to perform ultrasonic activation on the storage battery. The invention also discloses an ultrasonic activation device for the storage battery, which comprises an ultrasonic water bath test box, a storage battery monitoring system and an activation instrument. The invention has the beneficial effects that the storage battery is repaired, the capacity of the storage battery can be improved to a certain degree, and the invention has important economic significance and environmental protection significance.
Description
Technical Field
The invention relates to the technical field of storage battery maintenance, in particular to a storage battery ultrasonic activation method and device.
Background
The direct current power supply system is generally applied to industries such as electric power, banks, communication and the like, the reliability of the direct current power supply system is one of the decisive conditions for ensuring the safe operation of electric equipment, and a lead-acid storage battery serving as a main backup power supply plays an important role in the direct current system.
When the lead-acid storage battery supplies power to external equipment, several chemical reactions occur inside the lead-acid storage battery at the same time. What happens at the negative plate (anode) is the change of metallic lead (Pb) to lead sulfate (PbSO)4) The oxidation reaction of (a) takes place at the positive plate (cathode) with lead dioxide (PbO)2) To lead sulfate (PbSO)4) The electrolyte (sulfuric acid) provides sulfur ions for the two reactions, and the two reactions play a role of a chemical bridge.
The decline of the lead-acid storage battery performance is mainly caused by the generation of lead sulfate (PbSO) with a coral-shaped structure on the polar plate of the battery in the discharging process4) And (4) crystallizing. And once the lead sulfate crystals are too large, porous PbO is arranged in the electrode2The mechanical bonding properties and electrical conductivity between the particles in the structure are reduced. The active material utilization rate decreases, the situation further worsens as the charge-discharge cycle continues, and eventually the active material in this region softens and falls off, causing electrochemical reactions inside the batteryThe discharge performance is reduced due to the resistance.
The method for solving the problem of the vulcanization of the lead-acid storage battery generally has various methods at home and abroad. Among them, one of the mainstream is a method of adding an additive, which is represented by the inventor of Japanese Kouzu Showa. The additive added by the method reacts with sulfate, so that the vulcanization phenomenon of the degraded battery can be effectively eliminated, but the method cannot restore the original factory performance of the storage battery for a long time. The second mainstream is represented by American scholars, and external equipment is used for generating pulses with the same natural frequency as sulfate to oscillate and eliminate the vulcanization. The disadvantage of this approach is that too high a pulse can exacerbate active species shedding, which can reduce battery life.
Disclosure of Invention
The present invention is directed to at least one of the technical problems of the prior art, and provides a method and an apparatus for ultrasonic activation of a battery.
The technical solution of the invention is as follows:
the invention provides a storage battery ultrasonic activation method on one hand, which comprises the following steps:
s1, checking the capacity of the storage battery and recording the actual capacity of the storage battery;
s2, placing the storage battery with the nuclear capacity into an ultrasonic water bath test box, and adding water into the ultrasonic water bath test box until the storage battery does not submerge;
s3, connecting the storage battery monitoring system with the positive electrode and the negative electrode of the storage battery through connecting wires, and connecting the activation instrument with the positive electrode and the negative electrode of the storage battery through connecting wires;
s4, starting a circulating stirring and temperature control switch of the ultrasonic water bath test box, and adjusting the temperature of the water bath;
s5, starting a storage battery monitoring system to acquire capacity data of the storage battery;
s6, starting an ultrasonic control switch of the ultrasonic water bath test box, and adjusting the ultrasonic frequency;
and S7, starting the activation instrument, performing ultrasonic activation on the storage battery, and recording the capacity data of the storage battery after ultrasonic activation.
In step S1, the battery is a single battery or a plurality of batteries connected in series, and each battery is subjected to a nuclear capacity.
Further, in step S1, the battery is subjected to a nuclear capacity at 25 ± 2 ℃.
Further, in step S2, water is added to the ultrasonic water bath test chamber to a height exceeding one-half of the height of the battery.
Further, in the step S4, the water bath temperature is adjusted to 25 to 60 ℃.
Further, in the step S4, the water bath temperature is adjusted to 35 to 40 ℃.
Further, in the step S6, the ultrasonic frequency is adjusted to be 40-50 kHz.
Further, in the step S7, the storage battery is activated by ultrasonic wave for 1-2 h.
Further, the method also includes step S8: and (5) after the storage battery subjected to ultrasonic activation in the step S7 is kept stand for 1-2 hours, repeating the steps S2-S7, and recording the capacity data of the storage battery subjected to ultrasonic activation again.
In another aspect, the present invention provides an ultrasonic activation apparatus for a storage battery, including:
the ultrasonic water bath test box is used for placing a storage battery to carry out ultrasonic treatment on the storage battery, and has a circulating stirring function, the temperature adjusting range is 25-60 ℃, and the ultrasonic frequency adjusting range is 40-50 kHz;
the storage battery monitoring system is connected with the storage battery to monitor the capacity data of the storage battery;
the activation instrument is connected with the storage battery to perform activation treatment on the storage battery;
the storage battery is a single storage battery or a plurality of storage batteries connected in series.
The invention has at least one of the following beneficial effects: the invention adopts the combination of the ultrasonic water bath test box and the activation instrument, when the storage battery is activated, the ultrasonic water bath test box is used for carrying out ultrasonic water bath treatment on the storage battery, the lead sulfate crystal is in a very slow dissolving state due to the barrier effect of the crystal wrapping layer, and under the action of ultrasonic waves, the ultrasonic waves can generate cavitation in water, the cavitation can break away a thin gas layer on the surface of the crystal and disturb a sulfate radical saturated ion layer, so that the lead sulfate crystal is dissolved in electrolyte, and the ion concentration of mixed liquid formed by dissolving the lead sulfate crystal in the electrolyte tends to an average state; in addition, the resonance effect generated by the crystal can break loose the wrapping layer of the crystal, the contact area between the undissolved crystal and the electrolyte is greatly increased under multiple actions, the dissolution rate is also greatly increased, and the capacity of the storage battery is correspondingly recovered. Therefore, the method and the device repair the storage battery under the combined action of the ultrasonic water bath test box and the activation instrument, can greatly improve the capacity of the storage battery, thereby improving the utilization rate of the lead-acid storage battery, are not easy to damage the battery, do not need to add chemical reagents, and have important economic significance and environmental protection significance.
Drawings
Fig. 1 is a schematic structural view of an ultrasonic activation apparatus for a storage battery according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of an ultrasonic activation device for a storage battery according to embodiment 2 of the present invention;
reference numerals: 1. an ultrasonic water bath test chamber; 2. a storage battery; 3. a battery monitoring system; 4. and (4) an activation instrument.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples.
Example 1
As shown in fig. 1, the ultrasonic activation device for the storage battery of the embodiment includes:
the ultrasonic water bath test box 1 is used for placing the storage battery 2 to carry out ultrasonic treatment on the storage battery 2, has a circulating stirring function, and has a temperature adjusting range of 25-60 ℃ and an ultrasonic frequency adjusting range of 40-50 kHz;
the storage battery monitoring system 3 is used for being connected with the storage battery 2 to monitor the capacity data of the storage battery 2;
and the activation instrument 4 is used for being connected with the storage battery 2 to perform activation treatment on the storage battery 2.
The ultrasonic activation treatment is carried out on the single storage battery 2 by adopting the device, and the specific method comprises the following steps:
three lead-acid storage batteries with rated capacities of 12V and 7Ah are selected and are marked with A, B, C.
Step S1, respectively carrying out nuclear capacity on A, B, C three lead-acid storage batteries at 25 ℃:
limiting the current at 13.00V +/-0.01V/cell by 4I20The constant voltage of A is used for respectively charging A, B, C three lead-acid storage batteries, and when the current values of A, B, C three lead-acid storage batteries are kept stable for 5 hours, the A, B, C three lead-acid storage batteries are considered to be fully charged; then, A, B, C lead-acid storage batteries are respectively and completely charged, the lead-acid storage batteries are kept stand for 1h, when the surface temperature of A, B, C three lead-acid storage batteries is 25 +/-5 ℃, a capacity discharge test is carried out, and the capacity of 20h is 12I20The current discharge of A was terminated when the average cell voltage was 10.5V, and the actual capacities of A, B, C three lead-acid batteries were recorded as 5.19Ah, 5.23Ah and 5.17Ah, respectively.
Step S2, respectively putting A, B, C lead-acid storage batteries after nuclear capacity into an ultrasonic water bath test box 1, and adding water until the height of the storage batteries is three quarters;
step S3, respectively connecting the storage battery monitoring system 3 with the positive electrodes and the negative electrodes of A, B, C three lead-acid storage batteries through connecting wires, and respectively connecting the three activation instruments with the positive electrodes and the negative electrodes of A, B, C three storage batteries through connecting wires;
step S4, starting a circulating stirring and temperature control switch of the ultrasonic water bath test box 1, and adjusting the temperature of the water bath to 35 ℃;
step S5, starting the storage battery monitoring system 3 to collect and monitor the capacity data of A, B, C three lead-acid storage batteries respectively through the storage battery monitoring system 3, and waiting for the data to be collected and displayed stably;
step S6, starting an ultrasonic control switch of the ultrasonic water bath test box 1, and adjusting the ultrasonic frequency to 40 kHz;
step S7, starting three activation instruments 4, respectively carrying out ultrasonic activation treatment on A, B, C three lead-acid storage batteries for 1.5 hours, and recording the capacity data of A, B, C three lead-acid storage batteries through a storage battery monitoring system 3 after the treatment is finished;
and S8, standing the three A, B, C storage batteries subjected to ultrasonic activation in the step S7 for 1 hour respectively, repeating the steps S2-S7 to perform ultrasonic activation treatment on A, B, C storage batteries respectively, and recording the capacity data of the A, B, C three lead-acid storage batteries after the treatment is finished.
A. B, C the capacity change of three batteries is shown in the following table 1:
table 1 unit of change in battery capacity before and after ultrasonic activation: ah
| Storage battery | A | B | C |
| Original value | 5.19 | 5.23 | 5.17 |
| One-time ultrasonic activation | 6.36 | 6.87 | 6.22 |
| Twice ultrasonic activation | 6.44 | 6.90 | 6.59 |
As shown in table 1, it can be obtained by calculation:
after the storage battery A is subjected to ultrasonic activation for 1 time, the capacity is increased by 22.5 percent, and after the storage battery A is subjected to ultrasonic activation for 2 times, the capacity is increased by 24.1 percent;
after the storage battery B is subjected to ultrasonic activation for 1 time, the capacity is increased by 31.4 percent, and after the storage battery B is subjected to ultrasonic activation for 2 times, the capacity is increased by 31.9 percent;
after the storage battery C is subjected to ultrasonic activation for 1 time, the capacity is increased by 20.3 percent, and after the storage battery C is subjected to ultrasonic activation for 2 times, the capacity is increased by 27.5 percent;
from the above data, after ultrasonic activation, the capacities of the three storage batteries are all increased to a greater extent, so that the method in the embodiment can improve the capacities of the storage batteries; in addition, experiments also show that the capacity of the storage battery can be improved to a certain extent by properly increasing the number of times of ultrasonic activation.
Example 2
As shown in fig. 2, the ultrasonic activation device for the storage battery of the present embodiment is different from the ultrasonic activation device of embodiment 1 in that: the battery 2 in this embodiment is formed by connecting three batteries in series.
Three lead-acid storage batteries with rated capacities of 12V and 7Ah are selected and are marked with A, B, C.
Step S1, respectively carrying out nuclear capacity on A, B, C three lead-acid storage batteries at 25 ℃:
limiting the current at 13.00V +/-0.01V/cell by 4I20The constant voltage of A is used for respectively charging A, B, C three lead-acid storage batteries, and when the current values of A, B, C three lead-acid storage batteries are kept stable for 5 hours, the A, B, C three lead-acid storage batteries are considered to be fully charged; then, A, B, C lead-acid storage batteries are respectively and completely charged, the lead-acid storage batteries are kept stand for 1h, when the surface temperature of A, B, C three lead-acid storage batteries is 25 +/-5 ℃, a capacity discharge test is carried out, and the capacity of 20h is 12I20Discharging the current of A to the average electricity of the single storage batteryThe pressure is terminated when 10.5V, and the actual capacities of A, B, C three lead-acid storage batteries are recorded as follows: 5.15Ah, 5.16Ah and 5.21 Ah.
Step S2, placing A, B, C lead-acid storage batteries after nuclear capacity in an ultrasonic water bath test box 1, adding water to three quarters of the height of the storage batteries, and connecting A, B, C lead-acid storage batteries in series to form a storage battery pack 2 through connecting wires;
step S3, the storage battery monitoring system 3 is respectively connected with the positive electrodes and the negative electrodes of A, B, C three lead-acid storage batteries through connecting wires, and the activation instrument is respectively connected with the positive electrodes and the negative electrodes of the storage battery pack 2 through connecting wires;
step S4, starting a circulating stirring and temperature control switch of the ultrasonic water bath test box 1, and adjusting the temperature of the water bath to 35 ℃;
step S5, starting the storage battery monitoring system 3 to collect and monitor the capacity data of A, B, C three lead-acid storage batteries respectively through the storage battery monitoring system 3, and waiting for the data to be collected and displayed stably;
step S6, starting an ultrasonic control switch of the ultrasonic water bath test box 1, and adjusting the ultrasonic frequency to 40 kHz;
and S7, starting the activation instrument 4, carrying out ultrasonic activation treatment on the storage battery pack 2 for 1.5 hours, and respectively recording the capacity data of A, B, C three lead-acid storage batteries through the storage battery monitoring system 3 after the treatment is finished.
The capacity change of the battery pack is shown in table 2 below:
table 2 unit of change in battery capacity before and after ultrasonic activation: ah
| Storage battery | A | B | C |
| Original value | 5.15 | 5.16 | 5.21 |
| One-time ultrasonic activation | 6.03 | 6.11 | 5.99 |
As shown in table 2, it can be obtained by calculation:
after the storage battery A is subjected to ultrasonic activation for 1 time, the capacity is increased by 17.1 percent;
after the storage battery B is subjected to ultrasonic activation for 1 time, the capacity is increased by 18.4 percent;
after the storage battery C is subjected to ultrasonic activation for 1 time, the capacity is increased by 15.0 percent;
through the data, after ultrasonic activation, the capacities of 3 storage batteries are increased to a great extent, so that the capacity of the storage battery can be improved by the method in the embodiment.
The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by basically the same means are all within the protection scope of the present invention.
The above are merely characteristic embodiments of the present invention, and do not limit the scope of the present invention in any way. All technical solutions formed by equivalent exchanges or equivalent substitutions fall within the protection scope of the present invention.
Claims (10)
1. An ultrasonic activation method for a storage battery is characterized by comprising the following steps:
s1, checking the capacity of the storage battery and recording the actual capacity of the storage battery;
s2, placing the storage battery with the nuclear capacity into an ultrasonic water bath test box, and adding water into the ultrasonic water bath test box until the storage battery does not submerge;
s3, connecting the storage battery monitoring system with the positive electrode and the negative electrode of the storage battery through connecting wires, and connecting the activation instrument with the positive electrode and the negative electrode of the storage battery through connecting wires;
s4, starting a circulating stirring and temperature control switch of the ultrasonic water bath test box, and adjusting the temperature of the water bath;
s5, starting a storage battery monitoring system to acquire capacity data of the storage battery;
s6, starting an ultrasonic control switch of the ultrasonic water bath test box, and adjusting the ultrasonic frequency;
and S7, starting the activation instrument, performing ultrasonic activation on the storage battery, and recording the capacity data of the storage battery after ultrasonic activation.
2. The ultrasonic activation method for storage batteries according to claim 1, wherein in step S1, said storage battery is a single storage battery or a plurality of storage batteries connected in series, and each storage battery is separately subjected to nuclear capacity.
3. The ultrasonic activation method for storage batteries according to claim 1, wherein in step S1, the storage batteries are subjected to nuclear capacity at 25 ± 2 ℃.
4. The method of claim 1, wherein in step S2, water is added to the ultrasonic bath test chamber to a height greater than half of the height of the battery.
5. The ultrasonic activation method for storage batteries according to claim 1, wherein in step S4, the water bath temperature is adjusted to 25-60 ℃.
6. The ultrasonic activation method for storage batteries according to claim 1, wherein in step S4, the water bath temperature is adjusted to 35-40 ℃.
7. The ultrasonic activation method for storage batteries according to claim 1, wherein in step S6, the ultrasonic frequency is adjusted to 40-50 kHz.
8. The ultrasonic activation method for storage batteries according to claim 1, wherein in step S7, the storage batteries are ultrasonically activated for 1-2 h.
9. The ultrasonic activation method for the storage battery according to claim 1, further comprising step S8: and (5) after the storage battery subjected to ultrasonic activation in the step S7 is kept stand for 1-2 hours, repeating the steps S2-S7, and recording the capacity data of the storage battery subjected to ultrasonic activation again.
10. An ultrasonic activation device for a storage battery, comprising:
the ultrasonic water bath test box (1) is used for placing a storage battery (2) to carry out ultrasonic treatment on the storage battery (2), and has a circulating stirring function, the temperature adjusting range is 25-60 ℃, and the ultrasonic frequency adjusting range is 40-50 kHz;
the storage battery monitoring system (3) is connected with the storage battery (2) to monitor the capacity data of the storage battery (2);
an activation instrument (4) for connecting with the storage battery (2) to perform activation treatment on the storage battery (2);
the storage battery (2) is a single storage battery or a plurality of storage batteries connected in series.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978807A (en) * | 2016-10-21 | 2018-05-01 | 许继集团有限公司 | A kind of battery detecting and maintaining method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978807A (en) * | 2016-10-21 | 2018-05-01 | 许继集团有限公司 | A kind of battery detecting and maintaining method and system |
Non-Patent Citations (1)
| Title |
|---|
| 曹诗龙等: ""VRLA蓄电池超声波活化技术研究"", 《通信电源技术》 * |
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Application publication date: 20201204 |