EP3625844A1 - Redox-flow-batterie und verfahren zum betreiben einer redox-flow-batterie - Google Patents
Redox-flow-batterie und verfahren zum betreiben einer redox-flow-batterieInfo
- Publication number
- EP3625844A1 EP3625844A1 EP18748861.4A EP18748861A EP3625844A1 EP 3625844 A1 EP3625844 A1 EP 3625844A1 EP 18748861 A EP18748861 A EP 18748861A EP 3625844 A1 EP3625844 A1 EP 3625844A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- buffer
- chamber
- electrolyte
- flow battery
- redox flow
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000872 buffer Substances 0.000 claims abstract description 54
- 239000003792 electrolyte Substances 0.000 claims abstract description 42
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 4
- 230000006641 stabilisation Effects 0.000 claims abstract 2
- 238000011105 stabilization Methods 0.000 claims abstract 2
- 238000007254 oxidation reaction Methods 0.000 claims description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- 239000006174 pH buffer Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 5
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 3
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 3
- 239000004471 Glycine Substances 0.000 claims description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 2
- 229910021538 borax Inorganic materials 0.000 claims description 2
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 2
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 claims description 2
- 230000033116 oxidation-reduction process Effects 0.000 claims description 2
- IWZKICVEHNUQTL-UHFFFAOYSA-M potassium hydrogen phthalate Chemical compound [K+].OC(=O)C1=CC=CC=C1C([O-])=O IWZKICVEHNUQTL-UHFFFAOYSA-M 0.000 claims description 2
- 239000001632 sodium acetate Substances 0.000 claims description 2
- 235000017281 sodium acetate Nutrition 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 239000001509 sodium citrate Substances 0.000 claims description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 2
- 239000004328 sodium tetraborate Substances 0.000 claims description 2
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 2
- IZUPJOYPPLEPGM-UHFFFAOYSA-M sodium;hydron;phthalate Chemical compound [Na+].OC(=O)C1=CC=CC=C1C([O-])=O IZUPJOYPPLEPGM-UHFFFAOYSA-M 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 4
- 239000013460 polyoxometalate Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- -1 hydroxide ions Chemical class 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
- H01M8/184—Regeneration by electrochemical means
- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
-
- 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
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
-
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the invention relates to a redox flow battery and a Ver ⁇ drive for operating a redox flow battery.
- Batteries are stores for electrical energy on electro ⁇ chemical basis and suitable to store the excess energy. If it is a rechargeable memory this is also called accumulator.
- a single element is also a rechargeable storage secondary element ge Nannt ⁇ .
- the electrode-active material is liquid.
- This liquid electrolyte is stored in a tank and pumped into a cathode compartment with a cathode and / or into an anode compartment with an anode.
- the cathode compartment and anode compartment are typically separated by a membrane.
- the electrode-active material is reduced or oxidized.
- the liquid electrolyte expediently comprises a reduction-oxidation pair as the electrode-active material.
- the electrolyte typically comprises salts to a suffi ⁇ accordingly high conductivity between the anode and the cathode, to reach.
- the object is achieved by a method according to claim 1 and egg ⁇ ner redox flow battery according to claim 10.
- the method according to the invention for operating an electrically rechargeable redox flow battery comprises several steps.
- a redox flow battery is provided.
- the redox flow battery comprises a first chamber and a second chamber, wherein the first chamber is separated from the second chamber by a membrane.
- the first chamber comprises a cathode and the second chamber comprises an anode.
- a first electrolyte is conducted as a catholyte.
- a second electrolyte is anolyte as ⁇ leads.
- the first electrolyte comprises a first reduction-oxidation pair.
- the second electrolyte comprises a second reduction-oxidation pair.
- the first and / or second electrolyte further comprise a pH stabilizing buffer for chemically stabilizing the reduction-oxidation pair.
- the redox flow battery is then charged or discharged.
- the inventive electrically rechargeable redox flow battery comprises a first and a second chamber, which are separated by a membrane, wherein the first chamber comprises a cathode and the second chamber comprises an anode.
- the first chamber has a first electrolyte as the catholyte and the second chamber has a second electrolyte as the anolyte.
- the first electrolyte comprises a first reduction-oxidation pair and the second electrolyte comprises a second reduction-oxidation pair.
- the first and / or second electrolyte further comprise a pH stabilizing buffer for chemically stabilizing the reduction-oxidation pair.
- Protons and / or hydroxide ions which pass through the membrane lead disadvantageously to a change in the electrolyte, which leads to an inactivation of the reduction-oxidation pair and thus to a loss of capacity of the redox flow battery.
- the redox flow battery according to the invention we ⁇ least one electrolyte with at least one pH-stabilizing buffer. Is thus advantageously prevents the oxidation-reduction pair of drive during the loading of the flow battery is changed ⁇ changed chemically such that the activity and the capacity decreases.
- the capacity of the redox flow battery län ⁇ ger kept constant, which leads to a longer life of the redox flow battery and thus leads to lower operating costs.
- a polyoxometalate is used at least as the first reduction-oxidation pair.
- Polyoxometallates allow the setting of desired chemical properties by the fact that a variety of different metals can be integrated into the structure of Polyoxometalle. Specifically, characterized advanta- way very high reaction rates in the flow battery waiting ⁇ . In particular, it is also possible advantageous result more ⁇ stage electron transitions to a polyoxometalate fürzu ⁇ .
- the pH-stabilizing buffer is designed such that a pH buffer region of the buffer comprises an electrochemically active pH range of the first and / or second reduction-oxidation pair.
- the electrochemically active pH range is the range in which the
- the pH buffer region of the buffer is in a pH range of 1 to 6.
- buffers which are in the acidic range are suitable.
- a first buffer comprising hydrochloric acid, glycerine and sodium chloride can be used in this area.
- the pH range of the ⁇ ses buffer is in a range of 1 to 3, 5.
- a second buffer comprising hydrochloric acid and potassium hydrogen phthalate used in this field.
- the pH range of this buffer is in a range from 2, 2 to 3, 8.
- Al ⁇ ternativ can be used in this pH range
- a third buffer comprising citric acid and sodium citrate.
- the Range of this third buffer is in a range of 3, 0 to 6, 2.
- a fourth buffer comprising acetic acid and sodium acetate can be used.
- the pH range of the fourth buffer is in the range of 3.6 to 5.6.
- a fifth buffer comprising sodium hydroxide and sodium hydrogen phthalate may also be used.
- the buffer range of this buffer is in a pH range of 4, 2 to 6, 0.
- the pH range of the buffer is in a range of 6 to 8.
- a sixth buffer comprising sodium dihydrogen phosphate and disodium hydrogen phosphate used.
- the pH range of this buffer is in the range of 5.7 to 8.0.
- the pH range of the buffer is in a range from 8 to 12.
- the pH-stabilizing buffer comprises a seventh buffer
- Sodium tetraborate and sodium hydroxide used.
- the pH range of this buffer is in the range of 9.2 to 10.6.
- an eighth buffer comprising sodium carbonate and sodium bicarbonate may be used in this range.
- the pH range of this buffer is in the range of 9.2 to 10.7 .
- a ninth buffer comprising monosodium phosphate and sodium hydroxide may be used.
- the pH range of this buffer is in the range of 11.0 to 11.9.
- the redox flow battery comprises a first pump for pumping the catholyte through the first chamber and an ne second pump for pumping the anolyte through the second Kam ⁇ mer.
- the flow battery comprising a ⁇ ers th feed tank with the first electrolyte, said first supply tank is connected by a first line to the first Chamber mer.
- the redox flow battery further comprises a second reservoir tank having the second electrolyte, the second reservoir tank being connected to the second chamber via a second conduit.
- the amount of the electrolyte can be varied via the size of the reservoir tanks. This can advantageously be adapted to the energy to power ratio of the redox flow battery. Advertising adapted to: Furthermore, before ⁇ part by way of the size of the storage tanks to the specific capacity Capa ⁇ the flow battery, which is defined as ampere-hours per liter of electrolyte (Ah / 1 unit).
- Figure 1 shows a rechargeable redox flow battery with an electrolyte with buffer
- FIG. 2 shows a schematic overview of the method for operating the redox flow battery.
- FIG. 1 shows a rechargeable redox flow battery 1.
- the rechargeable redox flow battery 1 comprises a
- the redox flow unit 2 comprises a Membrane 3, wherein the membrane 3, a first chamber 4 and a second chamber 5 separated from each other.
- a cathode 15 is arranged in the first chamber 4 in the first chamber 4.
- an anode 16 is arranged in the second chamber 5.
- the cathode 15 and the anode 16 are connected via an electrical energy connection 12 to a power grid.
- the rechargeable redox flow battery 1 further comprises a first tank 6 which is connected by means of a first pump 8 via a first line to the first chamber 4 to the cathode 15.
- the first chamber 4 is in turn connected via a third line 10 to the first tank 6.
- the rechargeable redox flow battery 1 comprises a second tank 7 which is connected via a second pump 9 to the second chamber 5 with the anode 16 via a second line.
- the second chamber 5 is in turn connected to the second tank 7 with a fourth line 11.
- first electrolyte 13 with a polyoxometalate as the first reduction-oxidation pair. Furthermore, there is a buffer in the first chamber in the first electrolyte 13. As a buffer, a buffer comprising glycine and sodium chloride is used in this example. In the second chamber 5 is a second electrolyte 14 comprising lithium chloride.
- the flow rates of the first pump 8 and the second pump 9 are in a range of between 800 ml / min / m 2 to 4000 ml / min / m 2 , more preferably in a range between 1200 ml / min / m 2 and 3600 ml / min / m 2 .
- FIG. 1 shows a schematic overview of the method for operating a redox flow battery 1.
- FIG. 2 Providing the redox flow battery 20. Then, the first and second electrolyte in the first chamber 4 and in the second chamber 5 is guided. This takes place continuously during the operation of the redox flow battery 1. Therefore, this step is shown in FIG. 2 with a box 21 comprising the method steps 22 and 23.
- the charging of the redox flow battery 22 takes place before the redox flow battery 1 can be discharged 23. Charging 22 and unloading 23 may typically be performed as a cyclic process.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17275118.2A EP3435464A1 (de) | 2017-07-28 | 2017-07-28 | Redox-flow-batterie und verfahren zum betreiben einer redox-flow-batterie |
| PCT/EP2018/068481 WO2019020351A1 (de) | 2017-07-28 | 2018-07-09 | Redox-flow-batterie und verfahren zum betreiben einer redox-flow-batterie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3625844A1 true EP3625844A1 (de) | 2020-03-25 |
Family
ID=59501370
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17275118.2A Withdrawn EP3435464A1 (de) | 2017-07-28 | 2017-07-28 | Redox-flow-batterie und verfahren zum betreiben einer redox-flow-batterie |
| EP18748861.4A Withdrawn EP3625844A1 (de) | 2017-07-28 | 2018-07-09 | Redox-flow-batterie und verfahren zum betreiben einer redox-flow-batterie |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17275118.2A Withdrawn EP3435464A1 (de) | 2017-07-28 | 2017-07-28 | Redox-flow-batterie und verfahren zum betreiben einer redox-flow-batterie |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11658324B2 (de) |
| EP (2) | EP3435464A1 (de) |
| JP (1) | JP2020523732A (de) |
| CN (1) | CN110959216A (de) |
| WO (1) | WO2019020351A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3435464A1 (de) | 2017-07-28 | 2019-01-30 | Siemens Aktiengesellschaft | Redox-flow-batterie und verfahren zum betreiben einer redox-flow-batterie |
| CN113013461A (zh) * | 2019-12-19 | 2021-06-22 | 中国科学院大连化学物理研究所 | 一种采用四硼酸盐为添加剂正极电解液的碱性锌铁液流电池 |
| EP4181239A1 (de) | 2021-11-15 | 2023-05-17 | Litricity GmbH | Elektrochemische zelle |
| DE102024108919A1 (de) | 2024-03-28 | 2025-10-02 | Forschungszentrum Jülich GmbH | Einsatz Ketazin-basierter Redoxspezies in Elektrolyten für Redox-Flow-Batterien |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0718577D0 (en) * | 2007-09-24 | 2007-10-31 | Acal Energy Ltd | Fuel cells |
| CN102237541A (zh) * | 2010-04-23 | 2011-11-09 | 比亚迪股份有限公司 | 一种全铁液流电池电解液及单电解液全铁液流电池 |
| GB2503653A (en) * | 2012-06-26 | 2014-01-08 | Acal Energy Ltd | Redox Battery use for polyoxometallate |
| CN104854731B (zh) | 2012-07-27 | 2018-02-06 | 洛克希德马丁尖端能量存储有限公司 | 特征为高开路电压的电化学储能系统 |
| US9287578B2 (en) * | 2013-02-06 | 2016-03-15 | Sandia Corporation | Polyoxometalate flow battery |
| CN105324875A (zh) * | 2013-06-07 | 2016-02-10 | 通用电气公司 | 能在电化学反应中操作的阴极和相关的电池、装置以及方法 |
| CN103367785B (zh) * | 2013-07-17 | 2016-06-22 | 大连融科储能技术发展有限公司 | 一种全钒液流电池及其运行方式 |
| US9548509B2 (en) * | 2014-03-25 | 2017-01-17 | Sandia Corporation | Polyoxometalate active charge-transfer material for mediated redox flow battery |
| US9899696B2 (en) * | 2015-01-21 | 2018-02-20 | Lockheed Martin Advanced Energy Storage, Llc | Solid buffer materials for electrolyte solutions and flow batteries utilizing same |
| US20170098851A1 (en) * | 2015-10-06 | 2017-04-06 | General Electric Company | Flow battery cells and stacks, and associated methods |
| WO2017126081A1 (ja) * | 2016-01-21 | 2017-07-27 | 日新電機 株式会社 | レドックスフロー電池 |
| EP3435464A1 (de) | 2017-07-28 | 2019-01-30 | Siemens Aktiengesellschaft | Redox-flow-batterie und verfahren zum betreiben einer redox-flow-batterie |
-
2017
- 2017-07-28 EP EP17275118.2A patent/EP3435464A1/de not_active Withdrawn
-
2018
- 2018-07-09 EP EP18748861.4A patent/EP3625844A1/de not_active Withdrawn
- 2018-07-09 CN CN201880049552.8A patent/CN110959216A/zh active Pending
- 2018-07-09 JP JP2019565812A patent/JP2020523732A/ja active Pending
- 2018-07-09 WO PCT/EP2018/068481 patent/WO2019020351A1/de not_active Ceased
- 2018-07-09 US US16/633,815 patent/US11658324B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20210126273A1 (en) | 2021-04-29 |
| US11658324B2 (en) | 2023-05-23 |
| WO2019020351A1 (de) | 2019-01-31 |
| JP2020523732A (ja) | 2020-08-06 |
| CN110959216A (zh) | 2020-04-03 |
| EP3435464A1 (de) | 2019-01-30 |
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