NZ796496A - Rechargeable battery discharge device for discharging rechargeable batteries, and method for discharging a plurality of rechargeable batteries - Google Patents
Rechargeable battery discharge device for discharging rechargeable batteries, and method for discharging a plurality of rechargeable batteriesInfo
- Publication number
- NZ796496A NZ796496A NZ796496A NZ79649621A NZ796496A NZ 796496 A NZ796496 A NZ 796496A NZ 796496 A NZ796496 A NZ 796496A NZ 79649621 A NZ79649621 A NZ 79649621A NZ 796496 A NZ796496 A NZ 796496A
- Authority
- NZ
- New Zealand
- Prior art keywords
- rechargeable battery
- voltage
- rechargeable
- switch element
- connection
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/90—Regulation of charging or discharging current or voltage
- H02J7/96—Regulation of charging or discharging current or voltage in response to battery voltage
-
- 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
- H01M10/441—Methods for charging or discharging 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
- H01M10/42—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
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte 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
- H01M10/42—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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
- H02J7/63—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements against overdischarge
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
- H02J7/68—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements using circuits for correcting or protecting against reverse-polarity
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/80—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including monitoring or indicating arrangements
-
- 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
- H01M10/448—End of discharge regulating measures
-
- 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
- H01M10/54—Reclaiming serviceable parts of waste accumulators
-
- 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
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/52—Reclaiming serviceable parts of waste cells or batteries, e.g. recycling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/008—Disposal or recycling of fuel cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Details of circuit arrangements for charging or discharging batteries or supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1423—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
- H02J7/685—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements using connection detecting circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/90—Regulation of charging or discharging current or voltage
- H02J7/96—Regulation of charging or discharging current or voltage in response to battery voltage
- H02J7/963—Regulation of charging or discharging current or voltage in response to battery voltage in response to battery voltage gradient
-
- 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)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Emergency Protection Circuit Devices (AREA)
- Ship Loading And Unloading (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention relates to a rechargeable battery discharge device (10) for discharging rechargeable batteries (20), comprising (a) a first rechargeable battery connection (12.1) for connecting a first rechargeable battery (20.1), (b) a second rechargeable battery connection (12.2) for connecting a second rechargeable battery (20.2), (c) at least one third rechargeable battery connection (12.3) for connecting a third rechargeable battery (20.3), and (d) a load connection (14) for a load (16) for dissipating an electric output upon discharging the rechargeable batteries (20). According to the invention, (e) a discharge circuit (18) is provided which has (i) a first short circuit switch (24.1), (ii) a first voltage meter (22.1) designed to measure a first rechargeable battery voltage (U20.1) which drops across the first rechargeable battery connection (12.1), (iii) a second short circuit switch (24.2), (iv) a second voltage meter (22.2) designed to measure a second rechargeable battery voltage (U2o.2) which drops across the second rechargeable battery connection (12.2), (v) a third short circuit switch (24.3), (vi) a third voltage meter (22.3) designed to measure a third rechargeable battery voltage (U20.3) which drops across the third rechargeable battery connection (12.3), and (vii) a control unit (27), wherein (f) the control unit (27) is designed to automatically carry out a method with the steps of: (i) detecting the respective rechargeable battery voltage (U20.i) for all of the voltage meters (22.i), (ii) if the respective rechargeable battery voltage (U20.i) exceeds a specified minimum voltage (Umin), connecting the corresponding rechargeable battery (20.i) into a series circuit with at least one other rechargeable battery, and (iii) if the respective rechargeable battery voltage (U20.i) does not exceed the minimum voltage (Umin), removing the corresponding rechargeable battery (20.i) from the series circuit using the corresponding short circuit switch.
Claims (13)
1. A rechargeable battery discharge device for discharging rechargeable batteries for recycling with: 5 a first rechargeable battery connection for connecting a first rechargeable battery, a second rechargeable battery connection for connecting a second re- chargeable battery, at least a third rechargeable battery connection for connecting a third re- 10 chargeable battery, a load connection for a load for dissipating an electric output during dis- charging of the rechargeable batteries, and a discharge circuit comprising: a first voltmeter that is arranged to measure a first rechargeable bat- 15 tery voltage dropped across the first rechargeable battery connection, a second voltmeter that is arranged to measure a second rechargea- ble battery voltage dropped across the second rechargeable battery con- nection, a third voltmeter that is arranged to measure a third rechargeable 20 battery voltage dropped across the third rechargeable battery connection, a control unit, wherein the control unit is configured to automatically carry out a method comprising the steps: 25 for all voltmeters, detecting the respective rechargeable battery volt- when the respective rechargeable battery voltage exceeds a prede- termined minimum voltage, connecting and/or keeping connected the cor- responding rechargeable battery into a series circuit with at least one other 30 rechargeable battery, and when the respective rechargeable battery voltage does not exceed a minimum voltage, removing the corresponding rechargeable battery from the series circuit, wherein the minimum voltage is selected in such a way that a runaway of 5 the rechargeable battery is avoided, and wherein the discharge circuit comprises: a first short circuit switch, a second short circuit switch, a third short circuit switch, and 10 is set up to remove the respective rechargeable battery from the se- ries circuit by means of the corresponding short circuit switch, wherein the short circuit switches each comprise a first switch element, wherein the short circuit switches each have a second switch element, 15 which are connected in such a way that the following applies for each second switch element: irrespective of the switching state of the first switch element, the rechargeable battery connected to the corresponding rechargeable battery con- nection can only be discharged when the second switch element is closed. 20
2. The rechargeable battery discharge device according to claim 1, further com- prising a load connected to the load connection in the form of: an inverter for generating an AC voltage of a predetermined frequency and voltage, and/or a DC voltage converter for generating a DC voltage of a predetermined 25 voltage from a DC voltage acting on the load connection.
3. The rechargeable battery discharge device according to claim 1 or claim 2, fur- ther comprising a display for displaying any of the rechargeable batteries whose respective rechargeable battery voltage falls below the minimum voltage and/or 30 any of the rechargeable battery connections whose connection contacts are short-circuited.
4. The rechargeable battery discharge device according to any one of the preced- ing claims, further comprising a polarity reversal protection circuit for automati- cally:
5. 5 detecting a rechargeable battery connected with an incorrect polarity and emitting a polarity reversal warning, and/or connecting the incorrectly connected rechargeable battery with a correct polarity. 10 5. The rechargeable battery discharge device according to any one of the preced- ing claims, wherein the control unit is configured to automatically carry out a method further comprising the steps of: determining changes in rechargeable battery voltages over time, and bridging the corresponding rechargeable battery by means of the corre- 15 sponding short circuit switch and/or emitting a voltage disconnection warning when a determined change in rechargeable battery voltage over time lies out- side of a predetermined tolerance interval.
6. The rechargeable battery discharge device according to any one of the preced- 20 ing claims, wherein the control unit is configured to automatically carry out a method further comprising the step of: connecting some of the rechargeable batteries into the series circuit, so that a sum of the rechargeable battery voltages lies within a predetermined tar- get voltage interval, wherein a combination with a largest number of rechargea- 25 ble battery voltages is selected when two or more combinations of rechargeable battery voltages lie within the target voltage interval.
7. The rechargeable battery discharge device according to any one of the preced- ing claims, further comprising: 30 at least one heat sensor that is arranged to detect a temperature of at least one of the rechargeable batteries.
8. The rechargeable battery discharge device according to any one of the preced- ing claims, wherein the control unit is configured to automatically carry out a method further comprising the steps of: 5 detecting a rechargeable battery that is connected to a rechargeable bat- tery connection and does not exceed the minimum voltage, closing a first switch element of the short circuit switch of the rechargeable battery connection, or keeping said element closed, closing a second switch element of the short circuit switch of the recharge- 10 able battery connection, or keeping said element closed, emitting a signal that encodes that the rechargeable battery can be re- moved, detecting that no rechargeable battery is connected to the rechargeable battery connection, 15 opening the second switch element or keeping it open, then opening the first switch element or keeping it open, and then closing the second switch element.
9. The rechargeable battery discharge device according to claim 2, wherein: 20 the inverter is connected to a power grid to which electrical consumers are connected, and the control unit is configured to automatically carry out a method further comprising the steps of: detecting a target power output of the rechargeable battery discharge 25 device, and reducing a discharge output of the rechargeable batteries when an actual power output exceeds the target power output.
10. The rechargeable battery discharge device according to claim 9, further com- 30 prising: an electrical buffer store, and wherein the control unit is configured to automatically carry out a method further comprising the steps of: detecting the target power output of the rechargeable battery dis- charge device, and 5 loading the buffer store so that the actual power output does not ex- ceed the target power output.
11. A method for discharging a plurality of rechargeable batteries for recycling, the method comprising the automatically performed steps of: 10 continuously measuring one rechargeable battery voltage of a plurality of rechargeable batteries, connecting the rechargeable batteries whose rechargeable battery volt- ages do not fall below a predetermined minimum voltage into a series circuit, so that the rechargeable batteries are discharged, 15 decontacting a rechargeable battery whose rechargeable battery vol-age falls below the predetermined minimum voltage, so that it is no longer con- nected in series, short-circuiting of at least one rechargeable battery connection to which a battery is connected and/or 20 wherein the minimum voltage is 0 Volt, decontacting a rechargeable battery whose rechargeable battery voltage falls below the predetermined minimum voltage, so that it is no longer con- nected in series, involves closing a first switch element of the short circuit switch, and 25 closing a second switch element of the short circuit switch of the recharge- able battery connection, or keeping said element closed, wherein the second switch element is connected in such a way that, irre- spective of the switching state of the first switch element, the rechargeable bat- tery connected to the corresponding rechargeable battery connection can only 30 be discharged when the second switch element is closed.
12. The method according to claim 11, further comprising the steps of: detecting that no rechargeable battery is connected to the rechargeable battery connection, opening the second switch element or keeping it open, then 5 opening the first switch element or keeping it open, and then closing the second switch element.
13. The method according to claim 11 or claim 12, further comprising the steps of: detecting a rechargeable battery connected with an incorrect polarity and 10 emitting a polarity reversal warning, and/or connecting an incorrectly connected rechargeable battery with a correct polarity. ---? 32b.4 ?--?32b.2 '20 4 26a.4 26a.1 3 26b3 Y t
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020118418.2A DE102020118418A1 (en) | 2020-07-13 | 2020-07-13 | Accumulator discharge device for discharging accumulators and method for discharging a plurality of accumulators |
| PCT/EP2021/069373 WO2022013170A1 (en) | 2020-07-13 | 2021-07-12 | Rechargeable battery discharge device for discharging rechargeable batteries, and method for discharging a plurality of rechargeable batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ796496A true NZ796496A (en) | 2025-02-28 |
| NZ796496B2 NZ796496B2 (en) | 2025-06-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PSEA | Patent sealed | ||
| RENW | Renewal (renewal fees accepted) |
Free format text: PATENT RENEWED FOR 1 YEAR UNTIL 12 JUL 2026 BY PAVIS PAYMENT GMBH Effective date: 20250626 |