CN115347262B - A battery desulfurization maintenance method, medium and system - Google Patents
A battery desulfurization maintenance method, medium and system Download PDFInfo
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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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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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a sulfur removal maintenance method, medium and system for a storage battery, wherein the method comprises the steps of measuring the voltage, internal resistance and post temperature of the storage battery in real time; and if the first pulse coefficient is larger than a first preset threshold value, starting pulse according to a first pulse parameter to remove sulfur for the 1 st time. According to the invention, pulse sulfur removal is started according to the voltage, the internal resistance and the temperature of the pole of the storage battery, and the corresponding pulse intensity, frequency, duty ratio, hump bottom amplitude and duration are set, so that the sulfur removal is more timely, and a better sulfur removal effect is achieved.
Description
Technical Field
The invention relates to the technical field of sulfur removal maintenance of storage batteries, in particular to a sulfur removal maintenance method, medium and system of a storage battery.
Background
In recent years, the in-vivo and in-vitro measurement and control technology of the storage battery is developed rapidly, the in-vitro measurement and control of the storage battery is to place a sensor outside the storage battery body to measure battery parameters such as charge and discharge current, internal resistance, voltage, temperature and the like, and simultaneously, the measured data can be transmitted to a processor on line to perform processing control, and the in-vivo measurement and control is to arrange a storage battery state parameter measurement and control circuit inside the storage battery body, so that the obtained data is more accurate than the in-vitro measurement and control, and the in-vivo measurement and control technology is convenient to operate and convenient to apply. In-vivo measurement and control technology in the prior art can obtain more accurate state parameters and process the parameters, but when the battery is vulcanized, sulfur removal and maintenance cannot be effectively performed in time, so that the quantity of the lagged battery cannot be effectively reduced.
Disclosure of Invention
The embodiment of the invention provides a method, a medium and a system for desulfurizing and maintaining a storage battery, which are used for solving the problem that the prior art cannot effectively perform desulfurizing and maintaining in time when the battery is vulcanized.
In a first aspect, a method for desulfurizing and maintaining a storage battery is provided, comprising:
Measuring the voltage, the internal resistance and the temperature of a pole of the storage battery in real time;
Calculating to obtain a first pulse coefficient according to the measured voltage, internal resistance and post temperature of the storage battery;
And if the first pulse coefficient is larger than a first preset threshold value, starting pulse according to a first pulse parameter to perform sulfur removal for the 1 st time.
In a second aspect, there is provided a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement a method for battery sulfur removal maintenance as described in the embodiment of the first aspect above.
In a third aspect, a battery sulfur removal maintenance system is provided, comprising a computer readable storage medium as described in the embodiment of the second aspect.
In this way, according to the embodiment of the invention, pulse sulfur removal is started according to the voltage, the internal resistance and the temperature of the pole of the storage battery, and the corresponding pulse intensity, frequency, duty ratio, hump bottom amplitude and duration are set, so that the sulfur removal is more timely, and a better sulfur removal effect is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for sulfur removal maintenance of a battery according to an embodiment of the present invention;
FIG. 2 is a second flowchart of a battery sulfur removal maintenance method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a hump pulse in accordance with an embodiment of the present invention;
fig. 4 is a second schematic diagram of a hump pulse according to an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention discloses a sulfur removal maintenance method for a storage battery. As shown in fig. 1, the method comprises the steps of:
And step S101, measuring the voltage, the internal resistance and the temperature of the pole of the storage battery in real time.
And step S102, calculating to obtain a first pulse coefficient according to the measured voltage, internal resistance and post temperature of the storage battery.
In practical application, the temperature of the storage battery can cause the activity of chemical substances in the storage battery to be different, so that the capacity of the storage battery is greatly changed. The charge and discharge process of the storage battery is the process of internal chemical reaction, and once lead sulfate is formed due to improper use and poor maintenance, the lead sulfate cannot be decomposed under the condition of no interference of external factors, and the number of motion charges participating in the chemical reaction in electrolyte in the storage battery can be reduced. In the prior art, sulfur removal modes such as spike and the like are adopted, the sulfur removal mode is single when started, only voltage or internal resistance is used, and the sulfur removal pulse is immobilized, so that the sulfur removal effect is not good and only reaches about 60%, or the storage battery is damaged due to overlarge current. In comparison, the invention builds a model according to the voltage, the internal resistance and the temperature to obtain the first pulse coefficient as the sulfur removal starting condition, and can discover and start to solve the problem of sulfur removal in time.
Specifically, the calculation equation of the first pulse coefficient is:
Wherein, K 1 represents a first pulse coefficient, K U represents a coefficient specific gravity of a voltage of the battery, K T represents a coefficient specific gravity of a temperature of the post, K R represents a coefficient specific gravity of an internal resistance, U t represents a measured voltage of the battery, U e represents a rated voltage of the battery, T t represents a measured temperature of the post, T e represents a rated post temperature, R t represents a measured internal resistance, and R e represents a rated internal resistance. K U、KT and K R are empirical values, which can be preset empirically.
Step 103, if the first pulse coefficient is larger than a first preset threshold value, starting pulse according to the first pulse parameter to perform sulfur removal for the 1 st time.
The pulse for sulfur removal is a current mode composite harmonic resonance high frequency hump pulse, and thus the first pulse parameters include a first pulse current intensity, a first pulse frequency, a first pulse duty cycle, a first pulse hump bottom amplitude as a percentage of the peak top, and a first pulse duration.
The specific first pulse parameters are calculated by the following modes:
the first pulse current intensity is the product of the rated pulse current intensity and the first pulse coefficient, i.e., I 1＝Ie×K1, where I 1 represents the first pulse current intensity and I e represents the rated pulse current intensity.
The first pulse frequency is the product of the nominal pulse frequency and the first pulse coefficient, i.e., f 1＝fe×K1, where f 1 represents the first pulse frequency and f e represents the nominal pulse frequency.
The first pulse duty cycle is the product of the nominal pulse duty cycle and the first pulse coefficient, i.e., a 1＝Ae×K1, where a 1 represents the first pulse duty cycle and a e represents the nominal pulse duty cycle.
The percentage of the first pulse hump bottom amplitude to the peak top is the quotient of the percentage of the rated pulse hump bottom amplitude to the peak top and the first pulse coefficient, namely B 1＝Be/K1, wherein B 1 represents the percentage of the first pulse hump bottom amplitude to the peak top and B e represents the percentage of the rated pulse hump bottom amplitude to the peak top.
The first pulse duration is the quotient of the nominal pulse duration and the first pulse coefficient, D 1＝De/K1, where D 1 represents the first pulse duration and D e represents the nominal pulse duration.
Through the above steps, the 1 st sulfur removal can be performed under the satisfied conditions.
In some cases, it is not sufficient to perform sulfur removal only once, and sulfur removal is performed again as the case may be.
Preferably, as shown in fig. 2, after step S103, the method further includes the following process:
Step S201, a first discharge current in a preset discharge time before the 1 st sulfur removal is obtained, and the integral of the first discharge current in the preset discharge time is calculated to obtain a first discharge charge quantity.
The first discharge current is described as a constant value, and the first discharge charge amount Q 0＝i0 Δt is described. Wherein i 0 represents a first discharge current, Δt represents a preset discharge time.
Step S202, obtaining a second discharge current in a preset discharge time after the nth sulfur removal, and calculating the integral of the second discharge current in the preset discharge time to obtain a second discharge charge quantity.
The second discharge current is described as a constant value, and the second discharge charge amount Q n＝in Δt is described. Wherein i n represents a second discharge current, n >0, n being a positive integer. It should be understood that the second discharge current may be different with the number of sulfur removal times, and thus, the second discharge charge amount may be different with the number of sulfur removal times.
And step 203, calculating the ratio of the second discharge charge quantity after the nth sulfur removal to the first discharge charge quantity to obtain the ratio of the electron numbers moving after the nth sulfur removal.
The ratio of the electron number of the movement after the nth sulfur removal is the ratio of the electron number of the movement in the preset discharge time after the nth sulfur removal to the electron number of the movement in the preset discharge time before the 1 st sulfur removal. The number of electrons moving is equal to the amount of discharged charge divided by the amount of unit charge. Therefore, the ratio of the number of electrons moving after the nth sulfur removal is equal to the ratio of the second discharge charge amount to the first discharge charge amount after the nth sulfur removal, i.eWhere e represents the unit charge amount, and N n represents the ratio of the number of electrons moving after the nth sulfur removal.
Step S204, if the ratio of the electron numbers moving after the nth sulfur removal is smaller than the second preset threshold, calculating a second pulse coefficient after the nth sulfur removal according to the first pulse coefficient, the coefficient specific gravity of the electron numbers moving and the ratio of the electron numbers moving after the nth sulfur removal.
Specifically, the calculation equation of the second pulse coefficient after the nth sulfur removal is as follows:
K2,n＝K1×KN×[(Nn-1)×10000+1]。
Wherein, K 2,n represents the second pulse coefficient after the nth sulfur removal, and K N represents the coefficient specific gravity of the number of electrons in motion. K N is an empirical value, which can be empirically set.
Step S205, if the second pulse coefficient after the nth sulfur removal is greater than the first preset threshold value, the (n+1) th sulfur removal is carried out according to the second pulse parameter start pulse after the nth sulfur removal.
The second pulse parameter is of the same kind as the first pulse parameter. The second pulse parameters comprise second pulse current intensity, second pulse frequency, second pulse duty ratio, second pulse hump bottom amplitude, peak top percentage and second pulse duration.
The specific second pulse parameters are calculated by the following modes:
The second pulse current intensity after the nth sulfur removal is the product of the rated pulse current intensity and the second pulse coefficient after the nth sulfur removal, i.e. I 2,n＝Ie×K2,n, wherein I 2,n represents the second pulse current intensity.
The second pulse frequency after the nth sulfur removal is the product of the rated pulse frequency and the second pulse coefficient after the nth sulfur removal, namely f 2,n＝fe×K2,n, wherein f 2,n represents the second pulse frequency.
The second pulse duty ratio after the nth sulfur removal is the product of the rated pulse duty ratio and the second pulse coefficient after the nth sulfur removal, namely A 2,n＝Ae×K2,n, wherein A 2,n represents the second pulse duty ratio.
The percentage of the peak bottom amplitude of the second pulse hump after the nth sulfur removal is the quotient of the percentage of the peak bottom amplitude of the rated pulse hump to the peak top and the second pulse coefficient after the nth sulfur removal, namely B 2,n＝Be/K2,n, wherein B 2,n represents the percentage of the peak bottom amplitude of the second pulse hump to the peak top.
The second pulse duration after the nth sulfur removal is the quotient of the nominal pulse duration and the second pulse coefficient after the nth sulfur removal, i.e., D 2,n＝De/K2,n, where D 2,n represents the second pulse duration.
Through the steps, the pulse coefficient is adjusted according to the electron number of the movement generated by discharging before and after sulfur removal, so that the pulse parameter is changed, sulfur is removed for multiple times, and the sulfur removal effect is better.
According to the embodiment of the invention, hump pulse is adopted for sulfur removal, so that coarse grain lead sulfate which is gradually generated on the negative plate and is hard and poor in conductivity and different in size respectively reaches the resonance frequency of the body to be decomposed, the sulfur removal efficiency is improved to be more than 90%, the capacity of the storage battery is improved, the degradation speed of the storage battery is reduced, the damage to the battery is reduced, and the service life of the storage battery is prolonged.
In addition, when certain conditions are met, sulfur removal can be stopped, and specifically, the method further comprises the following two conditions:
(1) If the ratio of the electron numbers moving after the nth sulfur removal is not less than the second preset threshold value, ending the sulfur removal.
(2) And if the second pulse parameters after the n+1th sulfur removal are beyond the respective threshold ranges, ending the sulfur removal.
Specifically, the respective threshold ranges of the pulse parameters are as follows:
The pulse current intensity is 0.01-0.05 ℃, the pulse frequency is 5-25 KHz, the pulse duty ratio is 5-25%, the hump bottom amplitude is 14-70% of the peak top, and the pulse duration is 1-5 min.
And stopping sulfur removal when the second pulse parameters after the n+1st sulfur removal are beyond the range.
The embodiment of the invention also discloses a computer readable storage medium, wherein the computer readable storage medium is stored with computer program instructions, and the computer program instructions realize the method for desulfurizing and maintaining the storage battery according to the embodiment when being executed by a processor.
The embodiment of the invention also discloses a storage battery sulfur removal maintenance system, which comprises the computer readable storage medium.
The technical scheme of the invention is further described in the following by a specific embodiment.
Taking a 2V and 500AH storage battery as an example, the rated voltage U e is 2V, the rated internal resistance R e is 0.4mΩ, the rated pole temperature T e is 25 ℃, the coefficient specific gravity K U of the voltage of the storage battery is 1.03, the coefficient specific gravity K T of the pole temperature is 0.98, the coefficient specific gravity K R of the internal resistance is 1.05, the measured voltage is 1.95V, the measured internal resistance is 0.6 mΩ, and the measured pole temperature is 23 ℃.
Thus, the calculated first impulse coefficient is:
The first preset threshold is 1.1, so that the first pulse coefficient is larger than the first preset threshold, and the 1 st sulfur removal is performed by starting pulse. Rated pulse current intensity I e = 0.01C = 500 x 0.01=5a. The nominal pulse frequency f e is 5KHz. The nominal pulse duty cycle a e% is 5%. The rated pulse hump bottom amplitude is 70% of the peak top percentage B e. The nominal pulse duration D e is 300s. The first pulse parameters are specifically as follows:
First pulse current intensity I 1＝Ie×K1 =5×1.5=7.5A.
First pulse frequency: f 1＝fe×K1 =5× 1.5=7.5 KHz.
The first pulse duty cycle, a 1＝Ae×K1 =5% ×1.5=7.5%.
The first pulse hump bottom amplitude is the percentage of the peak top, B 1＝Be/K1 =70/1.5=46.7%.
The first pulse duration, D 1＝De/K1 =300/1.5=200 s.
Sulfur removal was performed 1 st time according to the first pulse parameters described above. As shown in fig. 3 and 4, the hump pulse is a bilateral symmetry hump with a pulse frequency of 7.5KHz, i.e. two hump pulses are separated by 133.33us, one hump pulse width is 10us, and the pulse hump bottom amplitude is 46.7 percent of the peak top, i.e. 7.5A at the peak top and 3.5A at the peak bottom. The pulse current rises from 0 to 3.5A to 1us, from 3.5A to peak top 7.5A to 2us, and from peak top 7.5A to peak bottom 3.5A to 2us.
Before the 1 st sulfur removal, the preset discharge time is 1s, the first discharge current i 0 is measured to be 0.9997, and the first discharge charge quantity Q 0＝i0 Δt=0.9997x1=0.9997C.
After the 1 st sulfur removal, the preset discharge time is 1s, the second discharge current i 1 after the 1 st sulfur removal is 0.99975, and the second discharge charge quantity Q 2＝i2 Δt= 0.99975 ×1= 0.99975C is measured.
Ratio of electron number of movement after 1 st sulfur removal
And if the second preset threshold is 1.0001 and N 1 is smaller than 1.0001, calculating a second pulse coefficient after the 1 st sulfur removal. Wherein the coefficient specific gravity K N of the number of electrons in motion is 1.1.
K2,1＝K1×KN×[(N1-1)×10000+1]=1.5×1.1×[(1.00005-1)×10000+1]=2.5。
And the second pulse coefficient K 2,1 is larger than a first preset threshold value, and the 2 nd sulfur removal is carried out according to the second pulse parameter start pulse after the 1 st sulfur removal. The second pulse parameters after the 1 st sulfur removal are as follows:
Second pulse current intensity after 1 st sulfur removal I 2,1＝Ie×K2,1 =5×2.5=12.5A.
The second pulse frequency after the 1 st sulfur removal is f 2,1＝fe×K2,1 =5×2.5=12.5 KHz.
The second pulse duty cycle after the 1 st sulfur removal is a 2,1＝Ae×K2,1 =5% ×2.5=12.5%.
The second pulse hump bottom amplitude after the 1 st sulfur removal accounts for the percentage of the peak top, and B 2,1＝Be/K2,1 =70/2.5=28%.
The second pulse duration after the 1 st sulfur removal is D 2,1＝De/K2,1 =300/2.5=120 s.
Sulfur removal was performed at 2 nd time according to the second pulse parameters described above.
After the 2 nd sulfur removal, the preset discharge time is 1s, the second discharge current i 2 after the 2 nd sulfur removal is 0.999775, and the second discharge charge quantity Q 2＝i2 Δt= 0.999775 ×1= 0.999775C is measured.
Ratio of electron number of movement after the 2 nd sulfur removal
And if the second preset threshold is 1.0001 and N 2 is smaller than 1.0001, calculating a second pulse coefficient after the 2 nd sulfur removal. Wherein the coefficient specific gravity K N of the number of electrons in motion is 1.1.
K2,2＝K1×KN×[(N2-1)×10000+1]=1.5×1.1×[(1.000075-1)×10000+1]=3。
And the second pulse coefficient K 2,2 is larger than the first preset threshold value, and the 3 rd sulfur removal is carried out according to the second pulse parameter start pulse after the 2 nd sulfur removal. The second pulse parameters after the 2 nd sulfur removal are as follows:
Second pulse current intensity after the 2 nd sulfur removal is I 2,2＝Ie×K2,2 =5×3=15a.
The second pulse frequency after the 2 nd sulfur removal is f 2,2＝fe×K2,2 =5×3=15 KHz.
The second pulse duty cycle after the 2 nd sulfur removal is a 2,2＝Ae×K2,2 =5% ×3=15%.
The second pulse hump bottom amplitude after the sulfur removal for the 2nd time accounts for the percentage of the peak top, namely B 2,2＝Be/K2,2 =70/3=23%.
The second pulse duration after the 2 nd sulfur removal is D 2,2＝De/K2,2 =300/3=100 s.
Sulfur removal was performed 3 rd time according to the second pulse parameters described above.
After the 3 rd sulfur removal, the preset discharge time is 1s, the second discharge current i 3 after the 3 rd sulfur removal is 0.99981, and the second discharge charge amount Q 3＝i3 Δt= 0.99981 ×1= 0.99981C is measured.
Ratio of electron number in motion after the 3 rd sulfur removal
And if the second preset threshold is 1.0001 and N 3 is not less than 1.0001, ending the sulfur removal.
After the above-mentioned 3 rd sulfur removal, the sulfur removal efficiency was 100%, and by the foregoing calculation, there were the following results:
The following sulfur removal rate results were calculated:
Sulfur removal rate after the 1 st sulfur removal:
sulfur removal rate after the 2 nd sulfur removal:
therefore, as the number of sulfur removal times increases, the sulfur removal rate increases, and the sulfur removal effect is better.
In summary, according to the embodiment of the invention, pulse sulfur removal is started according to the voltage, the internal resistance and the temperature of the pole of the storage battery which are accurately measured, and the pulse coefficient is adjusted according to the number of electrons of movement generated by discharging before and after sulfur removal, so that the pulse parameters are changed, sulfur is removed for multiple times, and the corresponding pulse intensity, frequency, duty ratio, hump bottom amplitude and duration are set for each sulfur removal, so that the sulfur removal is more timely, and a better sulfur removal effect is achieved.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (8)
1. The method for desulfurizing and maintaining the storage battery is characterized by comprising the following steps of:
Measuring the voltage, the internal resistance and the temperature of a pole of the storage battery in real time;
Calculating to obtain a first pulse coefficient according to the measured voltage, internal resistance and post temperature of the storage battery;
If the first pulse coefficient is larger than a first preset threshold value, starting pulse according to a first pulse parameter to perform sulfur removal for the 1 st time;
The calculation equation of the first pulse coefficient is as follows:
;
Wherein, K 1 represents a first pulse coefficient, K U represents a coefficient specific gravity of a voltage of the battery, K T represents a coefficient specific gravity of a temperature of the post, K R represents a coefficient specific gravity of an internal resistance, U t represents a measured voltage of the battery, U e represents a rated voltage of the battery, T t represents a measured temperature of the post, T e represents a rated post temperature, R t represents a measured internal resistance, and R e represents a rated internal resistance;
the first pulse parameters comprise a first pulse current intensity, a first pulse frequency, a first pulse duty cycle, a first pulse hump bottom amplitude, a peak top percentage and a first pulse duration;
The first pulse current intensity is the product of rated pulse current intensity and the first pulse coefficient;
the first pulse frequency is the product of the rated pulse frequency and the first pulse coefficient;
The first pulse duty cycle is the product of the rated pulse duty cycle and the first pulse coefficient;
The percentage of the peak bottom amplitude of the first pulse hump to the peak top is the quotient of the percentage of the peak bottom amplitude of the rated pulse hump to the peak top and the first pulse coefficient;
The first pulse duration is a quotient of a nominal pulse duration and the first pulse coefficient;
the pulse used for sulfur removal is a current type composite harmonic resonance high frequency hump pulse.
2. The battery sulfur removal maintenance method of claim 1, wherein after said step of performing the 1 st sulfur removal according to the first pulse parameter start pulse, said method further comprises:
Acquiring a first discharge current in a preset discharge time before the 1 st sulfur removal, and calculating the integral of the first discharge current in the preset discharge time to obtain a first discharge charge quantity;
Obtaining a second discharge current in a preset discharge time after the nth sulfur removal, and calculating the integral of the second discharge current in the preset discharge time to obtain a second discharge charge quantity, wherein n is more than 0, and n is a positive integer;
calculating the ratio of the second discharge charge quantity after the nth sulfur removal to the first discharge charge quantity to obtain the ratio of the electron number moving after the nth sulfur removal;
If the ratio of the electron numbers moving after the nth sulfur removal is smaller than a second preset threshold value, calculating a second pulse coefficient after the nth sulfur removal according to the first pulse coefficient, the coefficient specific gravity of the electron numbers moving and the ratio of the electron numbers moving after the nth sulfur removal;
If the second pulse coefficient after the nth sulfur removal is greater than the first preset threshold value, starting pulse according to the second pulse parameter after the nth sulfur removal to carry out the (n+1) th sulfur removal.
3. The method for sulfur removal and maintenance of a storage battery according to claim 2, wherein the calculation equation of the second pulse coefficient after the nth sulfur removal is:
;
Wherein K 2,n represents the second pulse coefficient after the nth sulfur removal, K 1 represents the first pulse coefficient, K N represents the coefficient specific gravity of the number of electrons moving, and N n represents the ratio of the number of electrons moving after the nth sulfur removal.
4. The method of claim 2, wherein the second pulse parameters include a second pulse current intensity, a second pulse frequency, a second pulse duty cycle, a second pulse hump bottom amplitude as a percentage of the peak top, and a second pulse duration;
The second pulse current intensity after the nth sulfur removal is the product of the rated pulse current intensity and the second pulse coefficient after the nth sulfur removal;
The second pulse frequency after the nth sulfur removal is the product of the rated pulse frequency and the second pulse coefficient after the nth sulfur removal;
The second pulse duty ratio after the nth sulfur removal is the product of the rated pulse duty ratio and the second pulse coefficient after the nth sulfur removal;
the percentage of the peak bottom amplitude of the second pulse hump after the nth sulfur removal to the peak top is the quotient of the percentage of the peak bottom amplitude of the rated pulse hump to the peak top and the second pulse coefficient after the nth sulfur removal;
The second pulse duration after the nth sulfur removal is the quotient of the rated pulse duration and the second pulse coefficient after the nth sulfur removal.
5. The method of claim 2, further comprising ending the sulfur removal if the ratio of the number of electrons moving after the nth sulfur removal is not less than a second predetermined threshold.
6. The method of claim 2, further comprising ending the sulfur removal if the second pulse parameters after the n+1st sulfur removal are outside the respective threshold ranges.
7. A computer readable storage medium, wherein computer program instructions are stored on the computer readable storage medium, and when the computer program instructions are executed by a processor, the method for desulfurizing and maintaining the storage battery is realized according to any one of claims 1-6.
8. The battery sulfur removal maintenance system of claim 7, comprising a computer readable storage medium.
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