Method for improving capacity of waste lead-acid maintenance-free dry battery

By employing multi-dimensional testing and targeted repair methods, the problem of low efficiency and poor results in the repair of used batteries has been solved, enabling efficient repair and reuse. This method is applicable to batteries with various fault types, reducing resource waste and environmental pollution.

CN120879005APending Publication Date: 2025-10-31JIANGXI YIMENG ANJIE ELECTRIC VEHICLE SERVICE CO LTD
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Patent Information

Application Number
CN202510924400.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-04
Publication Date
2025-10-31

AI Technical Summary

Technical Problem

Existing methods for repairing used batteries are inefficient, ineffective, and have a narrow scope of application, failing to meet actual needs. In particular, lead-acid maintenance-free batteries for electric vehicles have a short service life and require frequent replacement, increasing riding costs.

Method used

We employ a multi-dimensional detection approach (deformation, power loss, voltage, appearance damage, and overheating detection) combined with low-current repair, normal charging and discharging, and the addition of electrolyte in specific proportions. We have developed clear procedures for different fault types to improve the targeting and efficiency of repairs.

Benefits of technology

It significantly improves repair efficiency and effectiveness, expands the scope of application, reduces resource waste and environmental pollution, is easy to operate, extends battery life, and reduces riding costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of battery repair, in particular to a method for improving the capacity of a waste lead-acid maintenance-free dry battery. A method for improving the capacity of a waste lead-acid maintenance-free dry battery is characterized by comprising the steps of battery deformation detection 101, power shortage starvation detection 102, detection 103 whether a single battery is lower than 10 V or not, appearance damage detection 104 and battery heating detection 105, and the specific process is as follows: carrying out battery deformation detection 101 on a battery body: judging whether the battery is deformed or not; if not, the next step of battery cleaning operation can be carried out, and then power-lack starvation detection 102 is carried out to judge whether the battery is in power-lack starvation or not; compared with the prior art, the method for repairing the waste battery has the beneficial effects that the fault type of the battery can be accurately judged by performing multi-dimensional detection on the battery, including deformation detection, power shortage starvation detection, voltage detection, appearance damage detection, heating detection and the like, and corresponding repairing measures can be taken according to different fault types, so that the battery repairing efficiency is improved. And the pertinence and the effectiveness of repairing are improved.
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Description

Technical Field

[0001] This invention relates to the field of battery repair technology, specifically to a method for increasing the capacity of waste lead-acid maintenance-free dry batteries. Background Technology

[0002] With the advancement of technology and the widespread use of electronic products, the consumption of batteries has increased dramatically, resulting in a massive increase in the number of waste batteries. Improper disposal of waste batteries not only causes serious environmental pollution but also wastes a significant amount of resources. Currently, the main methods for handling waste batteries include recycling and repair / reuse. However, existing waste battery repair methods suffer from low efficiency, poor repair results, and narrow applicability, failing to meet the needs of actual production and daily life.

[0003] Currently, the lead-acid maintenance-free batteries used in electric two-wheelers, electric tricycles, and small electric four-wheelers have a relatively short lifespan. Generally, after one year of use, the battery capacity will drop by 60-80%, and in some cases even by more than 90%, making it impossible to ride the electric vehicle. The only solution is to replace the battery with a new one, which increases the rider's riding costs.

[0004] Therefore, developing an efficient, reliable, and widely applicable method for repairing used batteries is of great practical significance. Summary of the Invention

[0005] The purpose of this invention is to provide a method for increasing the capacity of waste lead-acid maintenance-free dry cell batteries, addressing the problems of low efficiency, poor effectiveness, and narrow applicability in existing waste battery repair technologies. This method aims to achieve efficient repair and reuse of waste batteries, reducing resource waste and environmental pollution. Utilizing the battery charging and discharging principle, corresponding improvement schemes are developed for batteries of different capacities. In special cases, adding a specific proportion of electrolyte is required to achieve a capacity increase of over 95%.

[0006] A method for increasing the capacity of waste lead-acid maintenance-free dry cell batteries, characterized by including battery deformation detection 101, low-charge detection 102, detection of whether a single battery is below 10 volts 103, appearance damage detection 104, and battery overheating detection 105, the specific process is as follows:

[0007] Battery deformation detection 101: Determine whether the battery is deformed;

[0008] If the result is negative, proceed to the next battery cleaning operation, followed by a low-charge starvation test 102 to determine whether the battery is low-charge starvation or not.

[0009] If the determination is yes, then proceed with "repairing with a small current until the voltage of each battery reaches 12 volts, then switch to charging with a regular charger", followed by battery heat detection 105 to determine whether there is heat or not;

[0010] If the result is negative, the repair process is now complete.

[0011] If the presence of heat is detected, the battery is treated to reduce overheating. Then, the protective cover is removed, the protective cap is taken out, and electrolyte of a corresponding dosage and specific ratio is added according to the pressure of each hole. Then, "normal charge and discharge repair is performed, with the number of repairs being proportional to the battery capacity. Repairs are continued until the capacity reaches a satisfactory level." Subsequently, the battery is tested for overheating (105) to determine whether overheating is present or not.

[0012] If the result is negative, the repair process is now complete.

[0013] If the presence is detected, repeat the battery heating treatment.

[0014] If the problem is identified, the next step is to replace the outer casing. Then, "normal charge and discharge repair is performed. The number of repairs is proportional to the battery capacity. Repairs are continued until the battery capacity reaches a satisfactory level." Subsequently, a battery heat detection test (105) is performed to determine whether heat is present or absent.

[0015] If the result is negative, the repair process is now complete.

[0016] If it is determined that there is, perform battery heating treatment, then remove the protective cover and take out the protective cap, and add the corresponding dosage and special ratio of electrolyte according to the different pressure of each hole, and then perform "normal charge and discharge repair, the number of repairs is proportional to the battery capacity, and repair is continued until the capacity reaches a satisfactory effect";

[0017] When performing the low-charge starvation test 102, determine whether the battery is low-charge starvation or not;

[0018] If it is determined that it is not, a test can be performed to see if the voltage of a single battery is below 10 volts to determine whether the battery is / is not below 10 volts.

[0019] If the determination is yes, then the appearance damage inspection 104 can be carried out to determine whether the appearance is damaged or not;

[0020] If it is determined that there is no problem, then "normal charge and discharge repair can be performed. The number of repairs is proportional to the battery capacity. Continue repairing until the capacity reaches a satisfactory level".

[0021] If it is determined that it is not, then "normal charge and discharge repair, the number of repairs is proportional to the battery capacity, keep repairing until the capacity reaches a satisfactory effect", and then perform battery heat detection 105 and other steps;

[0022] When determining whether the appearance is damaged, if it is determined to be damaged, the appearance can be repaired, followed by "normal charge and discharge repair, the number of repairs is proportional to the battery capacity, continue repairing until the capacity reaches a satisfactory effect", and then perform battery heat detection 105 and other steps.

[0023] The beneficial effects of this invention are:

[0024] The waste battery repair method provided by this invention can accurately determine the battery fault type by performing multi-dimensional detection on the battery, including deformation detection, depletion detection, voltage detection, appearance damage detection, and heat detection, and take corresponding repair measures according to different fault types, thereby improving the pertinence and effectiveness of the repair.

[0025] The specific beneficial effects are as follows:

[0026] High repair efficiency: Clear repair procedures have been developed for different fault types, avoiding blind repair, reducing repair time, and improving repair efficiency;

[0027] Excellent repair effect: By combining multiple repair methods such as low-current repair, normal charge and discharge repair, and adding a special ratio of electrolyte, the capacity and performance of the battery can be effectively restored, so that the repaired battery can meet the usage requirements.

[0028] Wide applicability: This method is applicable to various types of waste batteries and can repair batteries with different fault types, thus expanding the scope of application of the repair method;

[0029] Simple to operate: The repair process is clear and straightforward, and the operation steps are simple and easy to understand, making it easy for staff to master and operate;

[0030] Environmental protection and energy conservation: By repairing and reusing used batteries, the disposal of used batteries is reduced, environmental pollution is reduced, and resources are saved, which is in line with the concept of environmental protection and energy conservation.

[0031] Obviously, based on the above description of the present invention, and according to common technical knowledge and conventional methods in the field, various other modifications, substitutions or alterations can be made without departing from the basic technical concept of the present invention.

[0032] The following detailed embodiments further illustrate the above-described content of the present invention. However, this should not be construed as limiting the scope of the present invention to the following examples. All technologies implemented based on the above-described content of the present invention fall within the scope of the present invention. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0034] The present invention is illustrated below with specific embodiments, which are not intended to limit the scope of the invention.

[0035] like Figure 1 As shown, a method for increasing the capacity of waste lead-acid maintenance-free dry batteries is presented.

[0036] Example 1

[0037] Battery deformation detection

[0038] Take a used battery and test its deformation. The test results show that the battery is not deformed.

[0039] Battery cleaning,

[0040] Clean the batteries that are not deformed to remove dust, dirt and other impurities from the battery surface;

[0041] Detection of power failure and starvation

[0042] After cleaning, a low-charge starvation test was performed, and the battery was determined to be low-charge starvation.

[0043] Low current repair,

[0044] For batteries that have died from depletion, a small current is used to repair them until each battery reaches a voltage of 12 volts, and then they are charged with a regular charger.

[0045] Battery overheating detection

[0046] After charging is complete, a battery heat detection is performed. If the battery is found to be not hot, the repair is complete, and the battery capacity is restored to a satisfactory level.

[0047] Example 2

[0048] Battery deformation detection

[0049] Take another used battery and perform a deformation test to determine that the battery is deformed;

[0050] Replace the outer casing.

[0051] Replace the casing of the deformed battery;

[0052] Normal charge and discharge repair,

[0053] After replacing the outer casing, perform normal charge and discharge repair. The number of repairs depends on the battery capacity and is directly proportional to the battery capacity. Continue repairing until the capacity reaches a satisfactory level.

[0054] Battery overheating detection

[0055] After the repair was completed, a battery heat detection test was performed, and it was determined that the battery was overheating.

[0056] Battery heat dissipation

[0057] Heat the overheated battery, then remove the protective cover and take out the protective cap;

[0058] Add electrolyte,

[0059] Depending on the pressure of each orifice, add a corresponding dose and a specific ratio of electrolyte;

[0060] Repair by performing a normal charge and discharge cycle again.

[0061] After adding electrolyte, perform normal charge and discharge repair until the capacity reaches a satisfactory level.

[0062] Battery overheating test again.

[0063] After repair, a battery temperature test was performed, and it was determined that the battery was not overheating. The repair is now complete, and the repaired battery performs well.

[0064] Example 3

[0065] Detection of power failure and starvation

[0066] Take a used battery and perform a discharge test to determine if the battery is not discharged.

[0067] Single battery voltage detection,

[0068] Perform a test to determine if a single battery is below 10 volts, and then determine if the battery is below 10 volts.

[0069] External damage inspection

[0070] An external damage inspection was conducted, and it was determined that there was no external damage.

[0071] Normal charge and discharge repair,

[0072] The battery is repaired by normal charge and discharge cycles. The number of repair cycles is proportional to the battery capacity. Repair continues until the capacity reaches a satisfactory level.

[0073] Battery overheating detection

[0074] After the repair was completed, a battery overheating test was performed. If the battery was found to be not overheating, the repair was completed and the battery was back to normal use.

[0075] Example 4

[0076] External damage inspection

[0077] A used battery was taken and, during relevant testing, it was determined that its appearance was damaged.

[0078] Appearance restoration

[0079] Repair the damaged appearance;

[0080] Normal charge and discharge repair,

[0081] After the appearance repair is completed, perform normal charge and discharge repair until the capacity reaches a satisfactory level.

[0082] Battery overheating detection

[0083] After repair, a battery overheating test was performed, and it was determined that the battery was not overheating. The repair was then complete, and the battery's appearance and performance were restored.

[0084] As can be seen from the above embodiments, the waste battery repair method provided by the present invention can effectively repair batteries with different fault types, with significant repair effects and high practical value. In practical applications, the repair operation can be carried out according to the above process based on the specific condition of the battery to ensure the repair effect; waste batteries can be reused, extending battery life and reducing battery usage costs.

[0085] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0086] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

[0087] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for increasing the capacity of waste lead-acid maintenance-free dry cell batteries, characterized in that, The process includes the following steps: battery deformation detection 101, low charge detection 102, single battery voltage below 10 volts detection 103, external damage detection 104, and battery overheating detection 105. The battery body undergoes a deformation test 101 to determine if the battery is deformed. If no deformation is detected, the next step, battery cleaning, can proceed. Then, a low-charge / starved battery test 102 is performed to determine if the battery is indeed low-charged / starved. If so, the process of "repairing with a small current until each battery voltage reaches 12 volts, then switching to a regular charger" is initiated. Next, a battery heat test 105 is performed to determine if heat is present or absent. If no heat is detected, the repair process ends. If heat is detected, battery heat treatment is performed. The protective cover is then removed, and the protective cap is taken out. Based on the different pressures at each hole, a specific dosage and ratio of electrolyte are added. Then, "normal charge and discharge repair is performed, with the number of repairs proportional to the battery capacity, continuing until a satisfactory result is achieved." Finally, a battery heat test 105 is performed again to determine if heat is present or absent. If no heat is detected, the repair process ends. If heat is detected, the battery heat treatment is repeated. If the battery deformation is detected in step 101, the next step is to replace the outer casing. Then, "normal charge and discharge repair" is performed, with the number of repairs being proportional to the battery capacity. Repair continues until the capacity reaches a satisfactory level. Next, battery heat detection step 105 is performed to determine whether there is heat or not. If there is no heat, the repair ends. If there is heat, the battery heat is treated. Then, the protective cover is removed, the protective cap is taken out, and electrolyte of a specific ratio is added according to the pressure of each hole. Then, "normal charge and discharge repair" is performed, with the number of repairs being proportional to the battery capacity. Repair continues until the capacity reaches a satisfactory level. When performing the low-charge starvation test 102, determine whether the battery is low-charge starvation. If it is not, perform a test to see if a single battery is below 10 volts. If it is, perform an appearance damage test 104 to determine whether there is or is no appearance damage. If it is not, perform "normal charge and discharge repair". The number of repairs is proportional to the battery capacity. Continue repairing until the capacity reaches a satisfactory level.

2. The method for increasing the capacity of waste lead-acid maintenance-free dry batteries according to claim 1, characterized in that, Determine whether the battery voltage is below 10 volts. If it is not, proceed with "normal charge and discharge repair, the number of repairs is proportional to the battery capacity, continue repairing until the capacity reaches a satisfactory level", and then perform battery heat detection 105 and other steps.

3. The method for increasing the capacity of waste lead-acid maintenance-free dry batteries according to claim 1, characterized in that, Determine whether there is any damage to the appearance. If there is, repair the appearance and then perform "normal charge and discharge repair. The number of repairs is proportional to the battery capacity. Continue repairing until the capacity reaches a satisfactory level." After that, perform battery heat detection step 105 and other steps.