CN113437370A - Storage battery efficiency maintenance method and equipment based on resonant pulse repair technology - Google Patents
Storage battery efficiency maintenance method and equipment based on resonant pulse repair technology Download PDFInfo
- Publication number
- CN113437370A CN113437370A CN202110522971.2A CN202110522971A CN113437370A CN 113437370 A CN113437370 A CN 113437370A CN 202110522971 A CN202110522971 A CN 202110522971A CN 113437370 A CN113437370 A CN 113437370A
- Authority
- CN
- China
- Prior art keywords
- storage battery
- pulse
- pulse current
- module
- parameters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012423 maintenance Methods 0.000 title claims abstract description 16
- 230000008439 repair process Effects 0.000 title claims abstract description 11
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 claims abstract description 24
- 239000013078 crystal Substances 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003792 electrolyte Substances 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002427 irreversible effect Effects 0.000 abstract description 4
- 238000004073 vulcanization Methods 0.000 abstract description 4
- 230000002441 reversible effect Effects 0.000 abstract description 3
- 238000013480 data collection Methods 0.000 abstract description 2
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 230000023556 desulfurization Effects 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
- -1 sulfur ions Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/06—Lead-acid accumulators
-
- 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
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a storage battery efficiency maintenance method and equipment based on a resonant pulse repair technology, wherein the method comprises the following steps: the detection circuit detects parameters of single storage batteries of the storage battery pack; the management module controls the pulse direct current output module to output a single-path pulse current according to the parameters of the single storage battery; and (3) smashing lead sulfate crystal grains in the storage battery by using pulse current so as to dissolve the lead sulfate crystal grains in sulfuric acid electrolyte. The invention changes the 'irreversible' of the storage battery vulcanization into 'reversible', can automatically adjust the output pulse current intensity by collecting the storage battery parameters in real time, meets the requirement of the desulfurization effect of the storage batteries with different capacities, and avoids a large amount of manual data collection and manual parameter setting errors. The labor intensity and labor cost of workers are reduced.
Description
Technical Field
The invention relates to the technical field of storage battery efficiency guarantee, in particular to a storage battery efficiency guarantee method and equipment based on a resonant pulse restoration technology.
Background
The lead-acid storage battery has the outstanding advantages of low price, good high-low temperature performance, safety, reliability and the like, has very wide application field, and is applied to various fields of electric power, automobile starting, communication, railways, traction and the like. At present, lead-acid storage batteries are also mostly adopted as backup power sources for direct current system equipment of transformer substations. The design life of the lead-acid storage battery is 8-10 years. However, in daily use, the actual service life is generally 3-4 years due to improper maintenance, abuse and the like. The early scrapping of the lead-acid storage battery not only wastes energy seriously, but also pollutes the environment seriously, and becomes a hot point concerned in the field. Therefore, the method is very meaningful for the research on the repair technology of the waste lead-acid storage battery.
Battery performance is currently restored by discharging the battery pack using a resistive load. The field discharge operation flow is complicated, and the working strength is high. Although regular discharge maintenance has a certain effect on improving the activity of the storage battery, the problem of capacity reduction of the battery pack caused by sulfation of the storage battery in a long-term floating charge state cannot be prevented at all. Because, according to principles of atomic and solid physics, sulfur ions in lead acid batteries have 5 different energy level states, ions that are normally in a metastable energy level state tend to exist migrating down to the most stable covalent bond energy level. At the lowest energy level (i.e., covalent bond level state), sulfur exists in the form of a ring-shaped molecule containing 8 atoms, and the ring-shaped molecular pattern of 8 atoms is a stable combination and is difficult to break up, forming irreversible sulfation-vulcanization of the battery. This occurs many times and a layer of lead sulfate crystals is formed, similar to the insulating layer. The lead sulfate crystals are not repaired by the discharge operation.
In addition, frequent maintenance discharges also create safety issues, as well as problems of increased labor intensity, increased labor costs, increased energy consumption, and the like.
Disclosure of Invention
The invention aims to provide a storage battery efficiency maintenance method and equipment based on a resonance pulse restoration technology, which can solve a series of problems caused by restoring the storage battery efficiency by performing discharge operation on a storage battery pack in the prior art.
The purpose of the invention is realized by the following technical scheme:
in a first aspect, the invention provides a storage battery efficiency maintenance method based on a resonant pulse repair technology, which comprises the following steps:
and 3, smashing lead sulfate crystal grains in the storage battery by using pulse current to dissolve the lead sulfate crystal grains in sulfuric acid electrolyte.
Further, the pulse frequency of the pulse current generates resonance with the natural frequency of the lead sulfate crystal grains, so that the lead sulfate crystal grains are broken.
Furthermore, the pulse direct current output module comprises at least one working module, and only one working module works at the same time.
Furthermore, in the storage battery pack, a plurality of 12V series circuits are formed by single storage batteries, and each series circuit receives a pulse signal injected by one working module.
Furthermore, the intensity of the single-path pulse direct current is determined according to the parameters of the single storage battery.
In a first aspect, the present invention provides a storage battery efficiency maintenance apparatus based on a resonant pulse repair technology, including a detection circuit, a management module and a pulse current output module, wherein:
the detection circuit is used for detecting parameters of the single storage battery in the storage battery pack;
the management module is used for managing the pulse current output module and controlling the intensity of the pulse current output by the pulse current output module according to the parameters of the single storage battery;
and the pulse current output module outputs the single-path pulse current with specific intensity according to the control of the management module.
Furthermore, the pulse current output module comprises a plurality of working modules, and each working module is independently controlled by the management module and independently outputs pulse current.
Furthermore, only one working module works at the same time.
According to the principle that pulse current with specific frequency has a destructive effect on lead sulfate crystals generated by the storage battery, the invention utilizes the resonance pulse repairing technology and utilizes the composite harmonic pulse energy to impact lead sulfate coarse grains to interfere the existence and growth of the lead sulfate crystals so as to change the 'irreversible' of the storage battery vulcanization into 'reversible'. The method of the invention can automatically adjust the output pulse current intensity according to the real-time collection of the storage battery parameters, meet the requirement of the sulfur removal effect of the storage batteries with different capacities, and avoid a large amount of manual data collection and manual parameter setting errors. The labor intensity and labor cost of workers are reduced.
Drawings
FIG. 1 is a diagram of the steps of a method for maintaining the efficiency of a storage battery based on resonant pulse repairing technology according to the present invention;
FIG. 2 is a schematic diagram of an application of the apparatus for maintaining the efficiency of a storage battery based on the resonant pulse repairing technology according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of the apparatus for maintaining the efficiency of a storage battery based on the resonant pulse repairing technology according to the present invention;
FIG. 4 is a schematic diagram of a series circuit formed by every 12V of the single battery packs;
FIG. 5 is one of comparative plots of the discharge capacity of a battery before and after repair;
fig. 6 is a second graph comparing the discharge capacity of the battery before and after repair.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The resonance pulse repairing technology, also called composite harmonic pulse resonance repairing technology, used in the invention is based on the principle that pulses with specific frequency have destructive effect on lead sulfate crystals generated by the storage battery, and the existence and growth of lead sulfate coarse grains are interfered by using composite harmonic pulse energy to impact the lead sulfate coarse grains, so that the 'irreversible' of the storage battery vulcanization is changed into 'reversible'. When the system equipment with the technology works, the pulse current with specific frequency and specific amplitude can be continuously output, only the pulse current which is relatively acted on lead sulfate crystals with different sizes in the storage battery can enable the pulse frequency and the natural frequency of the lead sulfate crystals to generate resonance, and when the energy is enough, the lead sulfate crystals are smashed and decomposed and dissolved in sulfuric acid electrolyte to participate in chemical reaction again without damaging battery plates.
The invention discloses a storage battery efficiency maintenance method based on a resonant pulse repair technology, which comprises the following steps of:
The parameters of the single storage battery include internal resistance, voltage, temperature and current of the storage battery.
The internal resistance of the storage battery is measured by an alternating current injection method, and the internal resistance value is calculated by measuring the voltage feedback of the storage battery to an alternating current signal with certain frequency input to the storage battery. The internal resistance test can be carried out on the storage battery in any states of charging, discharging and the like, and the frequency of the selected signal can adapt to different types of storage batteries. Meanwhile, a related filtering algorithm is adopted, and only the response signal of the injection signal is reserved through filtering, so that various harmonic interference is eliminated in principle, and the accuracy and the stability of the internal resistance detection result are ensured.
And 2, adjusting the output intensity of the pulse current according to the parameters of the single storage battery.
The pulse current is generated by combining a pulse current and a current type composite harmonic generation circuit, is pulse current with the magnitude above KHZ in the true sense, and has the pulse frequency resonant with the natural frequency of the lead sulfate crystals. The output pulse current intensity is designed according to 0.01-0.05C, and the requirements of the Chinese Ministry of industry and information YD/T2064-2009 are completely met.
The storage battery efficiency maintenance device is designed by adopting a time-sharing gap cycle working technology, namely, a pulse current output module in the device comprises a plurality of working modules, only one working module outputs pulse current at each moment, and the storage battery efficiency maintenance device has the following advantages:
output power energy consumption value is low: when the battery pack with more series single batteries is managed, no matter how many circuit working modules exist in the product, the output power consumption is only the power consumption of one circuit module in working output, and compared with the product without the technology, the output power consumption is smaller.
The output ripple interference value is low: by adopting the technology, a single amplitude value of the output pulse, namely a ripple interference value, can be effectively suppressed.
According to the real-time acquisition of the storage battery parameters, the output pulse current intensity can be automatically adjusted, the requirement on the sulfur removal effect of the storage batteries with different capacities is met, and a large amount of manual data acquisition and manual parameter setting errors are avoided.
And 3, smashing lead sulfate grains in the storage battery by using pulse current, dissolving the lead sulfate grains in sulfuric acid electrolyte, and participating in chemical reaction again.
In order to avoid injecting pulse signals into the total voltage pole terminal of the battery pack and reduce the risk of false operation of triggering other devices of the power supply system, in the battery pack, every 12V of the single battery pack forms a series circuit, and each series circuit is injected with pulse signals by a working module, as shown in fig. 4. And only one working module in the pulse current output modules works at the same time.
After the storage battery is repaired by the method, the discharge capacity of the storage battery, such as discharge voltage, discharge time and the like, is greatly improved, as shown in fig. 5 to 6.
The invention discloses a storage battery efficiency maintenance device based on a resonant pulse repairing technology, which comprises a detection circuit, a management module and a pulse current output module, wherein:
the detection circuit is used for detecting parameters of the single storage battery in the storage battery pack. The parameters of the single storage battery comprise internal resistance, voltage, temperature and current of the storage battery.
And the management module is used for managing the pulse current output module and controlling the pulse current output by the pulse current output module according to the parameters of the single storage battery.
And the pulse current output module outputs pulse current with specific magnitude according to the control of the management module. The pulse current output module comprises a plurality of working modules, and each working module is independently controlled by the management module and independently outputs pulse current. And only one working module works at the same time. When the battery pack with more series single storage batteries is managed, no matter how many working modules exist, the output power consumption is only the output power consumption of one working module in working, and the output power consumption is smaller. And the output ripple interference value is low, and by adopting the technology, the single amplitude value of the output pulse, namely the ripple interference value, can be effectively inhibited.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. A plurality in the present invention means at least 1.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (8)
1. The storage battery efficiency maintenance method based on the resonance pulse repair technology is characterized by comprising the following steps of:
step 1, detecting parameters of single storage batteries of a storage battery pack by a detection circuit;
step 2, the management module controls the pulse direct current output module to output a single-path pulse current according to the parameters of the single storage battery;
and 3, smashing lead sulfate crystal grains in the storage battery by using pulse current to dissolve the lead sulfate crystal grains in sulfuric acid electrolyte.
2. The method for maintaining the efficiency of a storage battery based on the resonance pulse restoration technology according to claim 1, wherein the pulse frequency of the pulse current and the natural frequency of the lead sulfate crystal grains generate resonance, so as to break up the lead sulfate crystal grains.
3. The battery performance maintenance method based on the resonant pulse repairing technology of claim 1, wherein the pulse dc output module comprises at least one working module, and only one working module works at a time.
4. The battery efficiency maintenance method based on the resonance pulse repairing technology as claimed in claim 3, wherein in the battery pack, a plurality of 12V series circuits are formed by single batteries, and each series circuit receives a pulse signal injected by one working module.
5. The method according to claim 1, wherein the intensity of the single pulse dc is determined according to the parameters of the battery cell.
6. Device is maintained to battery efficiency based on resonance pulse repair technique, its characterized in that, including detection circuitry, management module and pulse current output module, wherein:
the detection circuit is used for detecting parameters of the single storage battery in the storage battery pack;
the management module is used for managing the pulse current output module and controlling the intensity of the pulse current output by the pulse current output module according to the parameters of the single storage battery;
and the pulse current output module outputs the single-path pulse current with specific intensity according to the control of the management module.
7. The apparatus for maintaining the efficiency of a storage battery based on resonant pulse repairing technology of claim 6, wherein said pulse current output module comprises a plurality of working modules, each of which is individually controlled by the management module to independently output pulse current.
8. The apparatus for maintaining battery efficiency according to claim 7, wherein only one working module is operated at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110522971.2A CN113437370A (en) | 2021-05-13 | 2021-05-13 | Storage battery efficiency maintenance method and equipment based on resonant pulse repair technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110522971.2A CN113437370A (en) | 2021-05-13 | 2021-05-13 | Storage battery efficiency maintenance method and equipment based on resonant pulse repair technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113437370A true CN113437370A (en) | 2021-09-24 |
Family
ID=77802293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110522971.2A Pending CN113437370A (en) | 2021-05-13 | 2021-05-13 | Storage battery efficiency maintenance method and equipment based on resonant pulse repair technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113437370A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114236242A (en) * | 2021-11-23 | 2022-03-25 | 广西电网有限责任公司北海供电局 | Accumulator internal resistance tester and testing method based on composite frequency |
| CN115343637A (en) * | 2022-10-20 | 2022-11-15 | 武汉源畅科技有限公司 | Storage battery internal resistance testing device and testing method |
| CN115692882A (en) * | 2022-10-27 | 2023-02-03 | 北京洲海能环科技有限公司 | Storage battery pack online restoration balance control method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751543A (en) * | 2011-04-18 | 2012-10-24 | 肖敏 | Pulse current method for repairing lead-acid battery and lead-acid storage battery sulphur remover |
| CN204315686U (en) * | 2014-12-25 | 2015-05-06 | 航天科工海鹰集团有限公司 | Accumulator on-line maintenance system |
-
2021
- 2021-05-13 CN CN202110522971.2A patent/CN113437370A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751543A (en) * | 2011-04-18 | 2012-10-24 | 肖敏 | Pulse current method for repairing lead-acid battery and lead-acid storage battery sulphur remover |
| CN204315686U (en) * | 2014-12-25 | 2015-05-06 | 航天科工海鹰集团有限公司 | Accumulator on-line maintenance system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114236242A (en) * | 2021-11-23 | 2022-03-25 | 广西电网有限责任公司北海供电局 | Accumulator internal resistance tester and testing method based on composite frequency |
| CN115343637A (en) * | 2022-10-20 | 2022-11-15 | 武汉源畅科技有限公司 | Storage battery internal resistance testing device and testing method |
| CN115692882A (en) * | 2022-10-27 | 2023-02-03 | 北京洲海能环科技有限公司 | Storage battery pack online restoration balance control method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113437370A (en) | Storage battery efficiency maintenance method and equipment based on resonant pulse repair technology | |
| CN101635470B (en) | Quick charger of power-saving storage battery and intelligent charging method | |
| CN103560277B (en) | A kind of electric automobile retired battery heavy constituent choosing method | |
| RU2437190C2 (en) | Storage battery restoration method and device for its implementation | |
| CN101930056B (en) | Method for predicting power backup time of battery | |
| CN108054451B (en) | Large-scale lead-acid storage battery repairing charging and discharging device and method | |
| CN107978807A (en) | A kind of battery detecting and maintaining method and system | |
| CN105990615A (en) | Intelligent regeneration and restoration method of industrial storage battery | |
| CN115051049B (en) | Storage battery energy protection device, method and system | |
| CN106208114A (en) | A kind of based on the many scenes application controls method on the basis of the most standing electricity of energy storage | |
| CN101017920A (en) | Physical and chemical combination repair technology of the lead acid accumulator | |
| CN112271743A (en) | Integrated charge and discharge test system and method based on modular photovoltaic power generation device | |
| CN204315686U (en) | Accumulator on-line maintenance system | |
| CN113381496A (en) | Hybrid energy storage system limit value management control method | |
| CN202534749U (en) | Storage battery activation repairing instrument | |
| CN105428732A (en) | Apparatus and method for online maintenance of valve regulated sealed lead acid storage battery | |
| WO2008033054A2 (en) | Method and device for a storage battery recovery | |
| CN115528324B (en) | Method and device for suppressing ripple waves of online repair of storage battery pack | |
| CN103607025A (en) | Direct-current power supply system for storage battery full-life-circle management | |
| CN103683383B (en) | A kind of low voltage standby power circuit and method | |
| Ananda-Rao et al. | Microcontroller based battery controller for peak shaving integrated with Solar Photovoltaic | |
| CN102751543B (en) | Pulse current method for repairing lead-acid battery and lead-acid storage battery sulphur remover | |
| CN106300626B (en) | A kind of double power-supply system of UPS, UPS equipment and its control method | |
| CN203193291U (en) | Solar energy storage cell cabinet | |
| CN207067356U (en) | A kind of storage batteries of transformer substation core capacitance device with desulfuration repair function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210924 |