CN111446513A - Method for treating a battery - Google Patents
Method for treating a battery Download PDFInfo
- Publication number
- CN111446513A CN111446513A CN202010040693.2A CN202010040693A CN111446513A CN 111446513 A CN111446513 A CN 111446513A CN 202010040693 A CN202010040693 A CN 202010040693A CN 111446513 A CN111446513 A CN 111446513A
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- Prior art keywords
- battery
- current signal
- current
- signal
- power electronics
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
-
- 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
- H01M10/44—Methods for charging or discharging
-
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00711—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a method for processing a battery (1), which is a component of a drive unit (2), wherein the drive unit (2) additionally has power electronics (3) and at least one electric machine (4), which can be supplied with electrical power from the battery (1) via the power electronics (3); wherein, the method at least comprises the following steps: a) the battery (1) is supplied with a first current signal (5), wherein the first current signal (5) comprises a plurality of high-frequency electrical pulses, wherein an average electrical power of at least 1.0kW [ kilowatts ] is transmitted via the first current signal (5) and over the plurality of electrical pulses.
Description
Technical Field
The invention relates to a method for treating a battery. The processing includes, inter alia, measures for increasing the memory capacity and reducing the internal resistance and extending the service life of the battery.
Background
The battery is an electrochemically based rechargeable electrical energy storage.
In lithium ion batteries, capacity and performance losses occur over the service life, which are attributed to degradation of the electrodes.
A device is known from WO 2004/070909 a1, by means of which a lead-acid battery can be supplied with current pulses. Loading the battery with current pulses can affect sulfate formation and extend the life of the battery. The pulses have an average amperage of at most 60mA milliamps.
A charging device for a battery is known from WO 2012/073194 a 1. The charging device generates a charging current which may have positive current pulses, negative current pulses and a constant current intensity.
A method for applying a current pulse to a battery is known from WO 2014/065573 a 1. The service life of the battery should be extended. In particular, the formation of sulfates should be limited. The pulses have an average amperage of at most 50mA milliamps.
Disclosure of Invention
The technical problem underlying the present invention is to solve, at least in part, the problems posed in relation to the prior art. In particular, a method should be proposed with which the storage capacity of the battery can be increased, the internal resistance can be reduced and the service life of the battery can be increased.
The solution with the features according to claim 1 helps to solve the technical problem. Advantageous embodiments are the subject matter of the dependent claims. The features mentioned in the claims can be combined with one another in a technically meaningful manner and can be supplemented by statements from the description and/or the drawing, in which further embodiments of the invention are illustrated.
A method for treating (or conditioning, conditioning) a battery is proposed. The battery is a component of the drive device, wherein the drive device additionally has power electronics and at least one electric machine, by means of which the electric machine can be supplied with the electrical power of the battery. The method at least comprises the following steps:
a) the battery is supplied with a first current signal, wherein the first current signal comprises a plurality of high-frequency electrical pulses, wherein an average electrical power of at least 1.0kW [ kW ], in particular at least 2.0kW, preferably at least 3.0kW, is transmitted via the first current signal and over the plurality of electrical pulses.
In particular, an average electrical power of between 1.0 and 6.0kW [ kW ] is transmitted by the first current signal and over the plurality of electrical pulses.
The first current signal comprises, in particular, a direct current.
The first current signal has in particular a frequency of at least 50 Hz.
The first current signal has in particular a frequency of at most 500 Hz.
The first current signal preferably has a frequency of about 300 Hz.
The amplitude of the pulses is in particular at least 5A amperes, preferably at least 10A, particularly preferably at least 20A or at least 30A.
The amplitude of the pulses is in particular at most 200A [ amperes ], preferably at most 170A, particularly preferably at most 150A.
The first current signal comprises in particular at least one sinusoidal or rectangular signal. The first current signal comprises, if appropriate, a plurality of superimposed (sinusoidal, rectangular) signals, wherein each signal is offset in time from the other signals of the first current signal and is transmitted at the same or, if appropriate, other frequencies (and, if appropriate, additional identical or different parameters, such as the amplitude of the current intensity, the voltage, etc.). The signal is generated in particular by PWM (pulse width modulation). Differently shaped current signals may also be generated or used.
Preferably, the first current signals are composed of identical signals, the ripple-shaped (in particular sinusoidal) or (due to PWM) rectangular or differently designed variations of which are transmitted offset in time from one another. Thus, for example, a first current signal with 300Hz can be formed from three identical signals with a frequency of 100Hz, wherein the three identical signals each extend with a time offset from one another by one third of their period.
In particular, the first current signal is transmitted at a set operating voltage of the battery. The operating voltage set is in particular at least 200V [ volts ], preferably at least 360V or approximately 400V.
The first current signal is in particular superimposed on a second current signal provided for driving the at least one electric machine, wherein the first current signal is a drive torque neutral signal (antithetimetric neutral) for the at least one electric machine.
In particular, the drive torque neutral signal does not generate a torque in the electric machine by means of the first current signal. The second current signal is used in particular only for driving the at least one electric machine and for generating a torque by the electric machine.
The method can be carried out continuously, i.e. for example at the start of operation of the motor vehicle or at an upcoming start of operation of the motor vehicle, and continuously during operation of the motor vehicle.
The method is carried out in particular at least when there is a request for driving at least one electric machine by means of a second current signal and the current required by the second current signal is at least 75% of the current limit permitted for the battery at the time.
The first current signal is generated, in particular, by the power electronics.
Alternatively or additionally, the first current signal may be generated by a short circuit within the battery. In particular, the first current signal is not conducted outside the battery via a line, but rather is transmitted only, for example, within the housing of the battery. At least a portion of the cells of the battery may be controllably interconnected by a short circuit to generate a first current signal.
The method is based on the recognition that high-frequency current pulses can have a positive effect on the battery. This effect can continue to be enhanced with higher currents. It is observed in particular that the internal resistance of the battery increases less rapidly during the course of a plurality of charging cycles and that the energy capacity can be increased just over a plurality of cycles of the battery (charging and discharging of the battery until a correspondingly determined state of charge is reached, for example until a state of charge SOC of up to 10% of the charge capacity of the battery is reached, charging until a state of charge of at least 85% is reached). This slows down the aging of the battery in particular.
Furthermore, the heating of the battery can be performed by applying the first current signal. In cold batteries, the current limit (i.e. the highest level of current that can be tapped from the battery to protect the battery from damage) is precisely very low, so that the current limit can already be achieved with a low rotational speed or torque of the at least one electric machine. Just in this case, the first current signal can be used to obtain a dual action, on the one hand to heat the accumulator and on the other hand to perform a positive treatment of the accumulator (increase of energy capacity, reduction of internal resistance, extension of service life).
The first current signal can be conducted and controlled, in particular, by means of a PTC element (Positive Temperature Coefficient), for example, a power electronics device. The PTC element can control, for example, the pulse width of the first current signal (PTC is turned off when a certain temperature is reached, and functions as an overheating protection).
Furthermore, a drive device is proposed, which comprises at least one battery, power electronics, by means of which the electric machine can be supplied with the electrical power of the battery, and at least one electric machine, which is embodied as a control device, which is suitable for carrying out the described method, or which carries out the method.
Furthermore, the method may also be computer-implemented or implemented with a processor of a control device.
A system for data processing is also proposed, which system comprises a processor adapted/configured to cause it to carry out a method or a part of the steps of the proposed method.
A computer-readable memory medium may be provided, which includes instructions, which, when executed by a computer/processor, cause the computer/processor to perform at least a portion of the steps of the method or proposed method.
Furthermore, a motor vehicle is proposed, which comprises at least one shaft and the described drive device for driving the shaft by means of at least one electric motor.
Embodiments of the method may be transferred in particular to motor vehicles, computer-implemented methods and drive apparatuses, and vice versa.
It should be noted that the numbers ("first", "second", …) used here are used primarily (only) to distinguish a plurality of objects, variables or processes of the same type, i.e. the relationship and/or the sequence of the objects, variables or processes with respect to one another is not necessarily predetermined. This is explained in detail herein if relationships and/or sequences are required, or will be apparent to those skilled in the art upon study of the specifically described designs.
Drawings
The invention and the technical scope are explained in detail later on with reference to the drawings. It is noted that the invention should not be limited to the embodiments presented. In particular, sub-topics of the cases set forth in the figures can also be extracted and combined with other components and knowledge from the current description, as long as no different explanations are presented. It is to be noted in particular that the figures and the dimensional relationships shown in particular are merely schematic. In the drawings:
fig. 1 shows a first diagram;
FIG. 2 shows a second graph;
FIG. 3 shows a third graph; and is
Fig. 4 shows a motor vehicle.
Detailed Description
Fig. 1 shows a first diagram. The number of charging cycles 11 of the battery 1 is plotted on the horizontal axis. The relative capacity 9 of the accumulator 1 is recorded in percentage on the vertical axis.
On the right side, the parameter set of the first current signal 5 for the respective course (profile) 13, 14, 15, 16, 17 is shown. A first variation 13, in which the battery 1 is not supplied with the first signal 5, shows the progression of the relative capacity 9 with respect to the number of cycles 11.
The parameter set is for the second variation process 14: 5 amp amplitude of the first signal 5 at 100hz frequency; for the third variation 15, 5 amps at 300 hz; 15 amps at 100 hertz for the fourth variation 16; and for the fifth variant 17 corresponds to 15 amperes at 300 hz.
It is clear from the first diagram that the relative capacity 9 of the battery 1 can be increased with different intensities by applying the first signal 5, wherein the strongest increase can be observed by applying the fifth parameter set (fifth profile 17).
Fig. 2 shows a second diagram. The number of charging cycles 11 of the battery 1 is plotted on the horizontal axis. The relative internal resistance 10 of the battery 1 is recorded in percent on the vertical axis.
On the right side, the parameter set of the first current signal 5 for the respective course of variation 13, 14, 15, 16, 17 is shown. A first change 13, in which the battery 1 is not supplied with the first signal 5, shows the progression of the relative internal resistance 10 with respect to the number of cycles 11.
The parameter set is for the second variation process 14: 5 amp amplitude of the first signal 5 at 100hz frequency; for the third variation 15, 5 amps at 300 hz; 15 amps at 100 hertz for the fourth variation 16; and for the fifth variant 17 corresponds to 15 amperes at 300 hz.
It is clear from the second diagram that the relative internal resistance 10 of the battery 1 can be reduced with different intensities by applying the first signal 5, wherein the strongest reduction can be observed by applying the fifth parameter set (fifth profile 17).
Fig. 3 shows a third diagram. The number of charging cycles 11 of the battery 1 is plotted on the horizontal axis. The temperature 12 of the battery 1 is recorded in degrees celsius on the vertical axis.
On the right side, the parameter set of the first current signal 5 for the respective course of variation 13, 14, 15, 16, 17, 18, 19, 20 is shown. A first variation 13, in which the battery 1 is not acted upon by the first signal 5, shows the progression of the temperature 12 of the battery 1 over the number of cycles 11.
The parameter set is for the second variation process 14: 5 amp amplitude of the first signal 5 at 100hz frequency; for the third variation 15, 5 amps at 300 hz; 15 amps at 100 hertz for the fourth variation 16; and for the fifth variant 17 corresponds to 15 amperes at 300 hertz; 60 amps at 100 hertz for the sixth variation 18; 60 amps at 300 hertz for the seventh variation 19; for the eighth variant 20, 160 amperes at 100 hertz are assumed.
From the third diagram, it is clear that a strong pulse of the first signal in the eighth variant 20 leads to a significant increase in the temperature 12 of the battery 1, which can also output a greater electrical power than a battery with a lower temperature. The increase in temperature 12 can be regarded as a possible cause of a significantly lower degree of aging of battery 1 to which first current signal 5 is applied.
Fig. 4 shows a motor vehicle 21 having a shaft 22 and a drive device 2 for driving the shaft 22 by means of an electric motor 4. The drive device 2 comprises a battery 1, power electronics 3, and an electric machine 4, which can be supplied with the electrical power of the battery 1 via the power electronics 3, and a control device 8, which is designed to be suitable for carrying out the described method or for carrying out the method.
A first current signal 5 is generated by the power electronics 3. Alternatively or additionally, the first current signal 5 can be generated by a short-circuit 7 in the battery 1. In this case, the first current signal 5 is not conducted outside the battery 1 by means of an electrical line, but rather is transmitted only, for example, within the housing of the battery 1. At least a part of the cells of the accumulator 1 can be controllably connected to each other by means of a short-circuit 7, so as to generate a first current signal 5.
The first current signal 5 is superimposed on a second current signal 6 provided for driving the electric motor 4, wherein the first current signal 5 is a drive torque neutral signal for the electric motor 4.
List of reference numerals
1 accumulator
2 drive device
3 power electronic device
4 electric machine
5 first current signal
6 second current signal
7 short-circuit
8 control device
9 relative capacity
10 relative internal resistance
11 period (c)
12 temperature
13 first course of variation
14 second variant
15 third variation Process
16 fourth variation Process
17 fifth variation
18 sixth Process variation
19 seventh variation
20 eighth variation
21 motor vehicle
22 shaft
Claims (11)
1. A method for processing a battery (1), which is a component of a drive unit (2), wherein the drive unit (2) additionally has power electronics (3) and at least one electric machine (4), which can be supplied with electrical power from the battery (1) via the power electronics (3); wherein the method comprises at least the following steps:
a) the battery (1) is supplied with a first current signal (5), wherein the first current signal (5) comprises a plurality of high-frequency electrical pulses, wherein an average electrical power of at least 1.0kW [ kilowatts ] is transmitted via the first current signal (5) and over the plurality of electrical pulses.
2. The method (1) according to claim 1, wherein the first current signal (5) has a frequency of at least 50Hz [ Hz ].
3. The method (1) according to any one of the preceding claims, wherein the first current signal (5) has a frequency of at most 500Hz [ Hz ].
4. The method (1) according to any one of the preceding claims, wherein the amplitude of the pulse is at least 5A [ amperes ].
5. A method (1) according to any of the preceding claims, wherein the amplitude of the pulse is at most 200A [ amperes ].
6. Method (1) according to one of the preceding claims, wherein the first current signal (5) is superimposed with a second current signal (6) provided for driving at least one electric motor (4), wherein the first current signal (5) is a drive torque neutral signal for at least one electric motor (4).
7. Method (1) according to any of the preceding claims, wherein the method is performed at least when there is a request to drive the at least one electric motor (4) by means of the second current signal (6) and the current required by the second current signal (6) is at least 75% of the current limit allowed by the battery (1) at the time.
8. The method (1) according to any one of the preceding claims, wherein the first current signal (5) is generated by power electronics (3).
9. The method (1) according to any one of claims 1 to 7, wherein the first current signal (5) is generated by a short-circuit (7) within the battery (1).
10. A drive device (2) comprising at least a battery (1), power electronics (3) and at least one electric machine (4) which can be supplied with electrical power from the battery (1) via the power electronics (3), and a control device (8) which is embodied such as to be suitable for carrying out the method according to one of the preceding claims.
11. A motor vehicle (21) comprising at least a shaft (22) and a drive device (2) according to claim 10 for driving the shaft (22) by means of at least one electric motor (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019200481.4 | 2019-01-16 | ||
| DE102019200481.4A DE102019200481A1 (en) | 2019-01-16 | 2019-01-16 | Process for conditioning an accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111446513A true CN111446513A (en) | 2020-07-24 |
Family
ID=71131764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010040693.2A Pending CN111446513A (en) | 2019-01-16 | 2020-01-15 | Method for treating a battery |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111446513A (en) |
| DE (1) | DE102019200481A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997032384A1 (en) * | 1996-02-27 | 1997-09-04 | Advanced Charger Technology, Inc. | Method and apparatus for charging a battery |
| CN1228637A (en) * | 1998-08-20 | 1999-09-15 | 苏永贵 | Combined pulse charging method |
| US6130522A (en) * | 1998-07-27 | 2000-10-10 | Makar; Dominique G. | Pulse modified invariant current battery charging method and apparatus |
| DE10261118A1 (en) * | 2001-12-21 | 2003-07-10 | Wiederkehr Hans | Charging and/or discharging energy sources, especially batteries and accumulators, involves battery charger feeding positive and/or negative voltage and current pulses to energy source |
| EP2710662A1 (en) * | 2011-05-17 | 2014-03-26 | Ulma Servicios De Manutención, S. Coop. | Method for regenerating lead batteries |
| WO2014065573A1 (en) * | 2012-10-23 | 2014-05-01 | (주)우전시스템 | Apparatus for lengthening life of battery having cell units mounted therein |
| DE102012220117A1 (en) * | 2012-11-05 | 2014-05-08 | Magna Electronics Europe Gmbh & Co. Kg | Pulsating machine for lead-acid battery used in motor car, has electronic system which applies desulphation pulses to vehicle battery to block application of current voltage pulses by serving circuit carried out in provided vehicle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004070909A1 (en) | 2003-02-03 | 2004-08-19 | Commonwealth Scientific And Industrial Research Organisation | Pulse generation device for charging a valve-regulated lead-acid battery |
| WO2012073194A1 (en) | 2010-11-30 | 2012-06-07 | Mei Heung Kwan | Battery chargers |
-
2019
- 2019-01-16 DE DE102019200481.4A patent/DE102019200481A1/en active Pending
-
2020
- 2020-01-15 CN CN202010040693.2A patent/CN111446513A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997032384A1 (en) * | 1996-02-27 | 1997-09-04 | Advanced Charger Technology, Inc. | Method and apparatus for charging a battery |
| US6130522A (en) * | 1998-07-27 | 2000-10-10 | Makar; Dominique G. | Pulse modified invariant current battery charging method and apparatus |
| CN1228637A (en) * | 1998-08-20 | 1999-09-15 | 苏永贵 | Combined pulse charging method |
| DE10261118A1 (en) * | 2001-12-21 | 2003-07-10 | Wiederkehr Hans | Charging and/or discharging energy sources, especially batteries and accumulators, involves battery charger feeding positive and/or negative voltage and current pulses to energy source |
| EP2710662A1 (en) * | 2011-05-17 | 2014-03-26 | Ulma Servicios De Manutención, S. Coop. | Method for regenerating lead batteries |
| WO2014065573A1 (en) * | 2012-10-23 | 2014-05-01 | (주)우전시스템 | Apparatus for lengthening life of battery having cell units mounted therein |
| DE102012220117A1 (en) * | 2012-11-05 | 2014-05-08 | Magna Electronics Europe Gmbh & Co. Kg | Pulsating machine for lead-acid battery used in motor car, has electronic system which applies desulphation pulses to vehicle battery to block application of current voltage pulses by serving circuit carried out in provided vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019200481A1 (en) | 2020-07-16 |
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