CN107403943B - A kind of lithium flow battery system by compressed gas-driven - Google Patents
A kind of lithium flow battery system by compressed gas-driven Download PDFInfo
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- CN107403943B CN107403943B CN201610340972.4A CN201610340972A CN107403943B CN 107403943 B CN107403943 B CN 107403943B CN 201610340972 A CN201610340972 A CN 201610340972A CN 107403943 B CN107403943 B CN 107403943B
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 51
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 434
- 239000000725 suspension Substances 0.000 claims abstract description 285
- 238000006243 chemical reaction Methods 0.000 claims abstract description 126
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 427
- 239000003792 electrolyte Substances 0.000 claims description 152
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 239000002904 solvent Substances 0.000 claims description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 239000011261 inert gas Substances 0.000 claims description 12
- 230000001141 propulsive effect Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000006194 liquid suspension Substances 0.000 claims 2
- 230000036647 reaction Effects 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- -1 titanium sulphur compound Chemical class 0.000 description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 239000006258 conductive agent Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 150000002466 imines Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 2
- 229910008416 Li-Ti Inorganic materials 0.000 description 2
- 229910006861 Li—Ti Inorganic materials 0.000 description 2
- STUKNTHDFYCZOR-UHFFFAOYSA-N [Ba+2].[O-2].[Li+] Chemical compound [Ba+2].[O-2].[Li+] STUKNTHDFYCZOR-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 239000002608 ionic liquid Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000003273 ketjen black Substances 0.000 description 2
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- 239000013528 metallic particle Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- TYOCDPIZUIQUSO-UHFFFAOYSA-N 1-butyl-2,3-dimethyl-2h-imidazole Chemical compound CCCCN1C=CN(C)C1C TYOCDPIZUIQUSO-UHFFFAOYSA-N 0.000 description 1
- VEWYMEIOASVNDP-UHFFFAOYSA-N 3-butyl-1-methylpyrrole Chemical compound CCCCC=1C=CN(C)C=1 VEWYMEIOASVNDP-UHFFFAOYSA-N 0.000 description 1
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- 208000032953 Device battery issue Diseases 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical class CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QTHKJEYUQSLYTH-UHFFFAOYSA-N [Co]=O.[Ni].[Li] Chemical class [Co]=O.[Ni].[Li] QTHKJEYUQSLYTH-UHFFFAOYSA-N 0.000 description 1
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- XTKDAFGWCDAMPY-UHFFFAOYSA-N azaperone Chemical compound C1=CC(F)=CC=C1C(=O)CCCN1CCN(C=2N=CC=CC=2)CC1 XTKDAFGWCDAMPY-UHFFFAOYSA-N 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- SIXOAUAWLZKQKX-UHFFFAOYSA-N carbonic acid;prop-1-ene Chemical compound CC=C.OC(O)=O SIXOAUAWLZKQKX-UHFFFAOYSA-N 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical class [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 description 1
- 229960001826 dimethylphthalate Drugs 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910002102 lithium manganese oxide Inorganic materials 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- ILXAVRFGLBYNEJ-UHFFFAOYSA-K lithium;manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[O-]P([O-])([O-])=O ILXAVRFGLBYNEJ-UHFFFAOYSA-K 0.000 description 1
- VGYDTVNNDKLMHX-UHFFFAOYSA-N lithium;manganese;nickel;oxocobalt Chemical compound [Li].[Mn].[Ni].[Co]=O VGYDTVNNDKLMHX-UHFFFAOYSA-N 0.000 description 1
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 description 1
- WDGKXRCNMKPDSD-UHFFFAOYSA-N lithium;trifluoromethanesulfonic acid Chemical compound [Li].OS(=O)(=O)C(F)(F)F WDGKXRCNMKPDSD-UHFFFAOYSA-N 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N monofluoromethane Natural products FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- PTISTKLWEJDJID-UHFFFAOYSA-N sulfanylidenemolybdenum Chemical compound [Mo]=S PTISTKLWEJDJID-UHFFFAOYSA-N 0.000 description 1
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
-
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04276—Arrangements for managing the electrolyte stream, e.g. heat exchange
-
- 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
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)
- Hybrid Cells (AREA)
- Fuel Cell (AREA)
Abstract
The present invention provides a kind of lithium flow battery system by compressed gas-driven, which includes: control device, gas supply department and battery module portion, controls gas supply department by control device to provide driving gas for battery module portion.Wherein, the compressed gas that gas supply department provides enters device for storing liquid with control valve via the gas piping in battery module portion and to complete cell reaction device anode reaction chamber, negative reaction chamber independent, synchronous with separate cavities or successively change liquid.It is back and forth flowed by the gas of compressor compresses come driving electrodes suspension, can be effectively reduced energy consumption, improve battery system leakproofness, guarantee battery system safe and reliable operation, and make whole system easy to operate and be convenient for control.In addition, additionally providing the above-mentioned working method by compressed gas-driven lithium flow battery system.
Description
Technical field
The invention belongs to electrochemical kinetics battery technologies, and in particular to pass through the lithium flow battery system of compressed gas-driven
System.
Background technique
Lithium flow battery is a kind of electrochemical cell art that latest development is got up, it combines lithium battery and flow battery
The advantages of, it is that a kind of output power and stored energy capacitance are independent of one another, and energy density is big, lower-cost new secondary battery.
The fields such as distributed power generation, smart grid, base station energy storage, peak load regulation network frequency modulation can be widely applied in it.Using electrochmical power source into
Row electric power storage energy storage, can not be limited by geographical conditions, be expected to realize extensive energy storage, have great social and economical value.
Although lithium ion flow battery possesses many advantages in extensive stored energy application, lithium flow battery
Electrode suspension is made of organic electrolyte, electrode active material and conductive agent, is a kind of sticky non-water system fluid.If logical
Cross sealing pipeline using liquid pump push electrode suspension flowed between device for storing liquid and cell reaction device, then electrode suspension into
Biggish mechanical loss can be generated when row circulation.In addition, liquid pump is easy to cause the leakage of electrode suspension, and liquid pump is also easy to
Cause electrode suspension in atmosphere steam and carrier of oxygen contact so that the whole efficiency and security performance of battery system
It is lower.
Summary of the invention
For the problem present on, the present invention provides a kind of lithium flow battery system by compressed gas-driven,
It is characterized in that, which includes: control device, gas supply department and battery module portion.Wherein, gas supply department includes: gas storage
Device is stored with nitrogen or inert gas in caisson；Compressor, the compressor be connected to caisson and by nitrogen or
Inert gas is compressed.Wherein, battery module portion includes: reactor, which is equipped with positive reaction chamber, negative reaction chamber
And separate cavities；Gas flows into general pipeline, which flows into general pipeline and be connected to compressor, to input gas to battery module portion；Gas
Body flows into branch pipe, and three gases flow into branch pipe and flow into general pipeline branch from gas；Gas flows out general pipeline, which flows out general pipeline connection
In caisson, to from battery module portion output gas；Gas flows out branch pipe, and it is total from gas outflow that three gases flow out branch pipe
Pipe branch；Pneumatic control valve, three pneumatic control valves are separately positioned on three gases and flow on branch pipe, flow into control gas
The air pressure of air-flow in branch pipe and flow；First, second positive suspension device for storing liquid, the first, second positive suspension storage
Liquid device is connected to the first solenoid directional control valve at one end through gas piping respectively and passes through liquid line in the other end respectively
It is connected to the positive reaction chamber of reactor, the first, second positive suspension device for storing liquid is to store positive suspension；The first,
Second cathode suspension device for storing liquid, the first, second cathode suspension device for storing liquid connect at one end through gas piping respectively
It is connected to the second solenoid directional control valve and is connected to the negative reaction chamber of reactor by liquid line in the other end respectively, first,
Second cathode suspension device for storing liquid is to store cathode suspension；First, second electrolyte device for storing liquid, this first, second
Electrolyte device for storing liquid is connected to third solenoid directional control valve at one end through gas piping respectively and passes through respectively in the other end
Liquid line is connected to the separate cavities of reactor, and the first, second electrolyte device for storing liquid is to store electrolyte；First electromagnetism changes
To valve, the second solenoid directional control valve, third solenoid directional control valve, above-mentioned first solenoid directional control valve, the second solenoid directional control valve, third electromagnetism
Reversal valve is connected to gas at one end respectively and flows into branch pipe and gas outflow branch pipe and pass through gas piping in the other end respectively
It is connected to the above-mentioned first, second positive suspension device for storing liquid, the first, second cathode suspension device for storing liquid and first, second
Electrolyte device for storing liquid can disconnect air-flow by the switching of solenoid directional control valve or the gas in gas piping is changed
To flowing.Wherein, control device controls the first solenoid directional control valve, the second solenoid directional control valve, the unlatching of third solenoid directional control valve, pass
Close sequence and opening time, control via pneumatic control valve enter gas flow into branch pipe air-flow pressure and flow and control
Compressor processed unlatches and closes.
Lithium flow battery system according to the present invention can provide bigger safety guarantee for battery system.When battery is anti-
When answering device that the failures such as short circuit occur, the available reaction chamber fed back and gas is made to enter battery of control device.Passing through will
Gas is full of positive reaction chamber and negative reaction chamber and empties the suspension in positive reaction chamber and negative reaction chamber, can
The dangerous generation such as battery electrode suspension overheat, burning, explosion caused by preventing due to battery failures.
Positive suspension in the positive reaction chamber and positive suspension device for storing liquid of reactor is positive-active material
Expect the mixture of particle, conductive agent and electrolyte；Positive electrode active materials particle is LiFePO 4, lithium manganese phosphate, lithium metasilicate, silicon
Sour iron lithium, titanium sulphur compound, molybdenum sulfur compound, iron sulphur compound, doped lithium manganese oxide, lithium and cobalt oxides, lithium-barium oxide,
Li-Ti oxide, Li, Ni, Mn oxide, lithium nickel cobalt oxides, lithium-nickel-manganese-cobalt oxide and it is other can lithium intercalation compound one kind or
It is several；Conductive agent is carbon black, carbon fiber, graphene, Ketjen black, carbon nanotubes, metallic particles and other electronic conductive materials
One or more of.
Cathode suspension in the negative reaction chamber and cathode suspension device for storing liquid of reactor is negative electrode active material
Expect the mixture of particle, conductive agent and electrolyte, negative electrode active material particle be the acieral of reversible embedding lithium, silicon-base alloy,
The one or more of kamash alloy, lithium Si oxide, lithium-barium oxide, Li-Ti oxide, metallic lithium powder, graphite, carbon material；It leads
Electric agent is one of carbon black, carbon fiber, graphene, Ketjen black, carbon nanotubes, metallic particles and other electronic conductive materials
Or it is several.
Electrolyte in the separate cavities and electrolyte device for storing liquid of reactor is to be dissolved in organic solvent using lithium salts
Or the solution of ionic liquid, the lithium salts include lithium hexafluoro phosphate, lithium perchlorate, hexafluoroarsenate lithium, LiBF4, two (three
Methyl fluoride sulphonyl) imine lithium, trifluoromethanesulfonic acid lithium, one or more of dioxalic acid lithium borate；The organic solvent includes carbon
The carbonates such as dimethyl phthalate, diethyl carbonate, methyl ethyl carbonate, ethylene carbonate, propene carbonate, tetrahydrofuran, diformazan
One of carboxylic acid esters such as ethers, methyl formate, methyl acetate, the methyl propionates such as base tetrahydrofuran, 1,2- dimethoxy
Or it is several, the ionic liquid includes N- Methyl-N-propyl pyrroles-two (trimethyl fluoride sulfonyl) imines, 1- methyl -4- butyl pyrrole
Pyridine-two (trimethyl fluoride sulfonyl) imines, 1,2- dimethyl -3-N- butyl imidazole, 1- methyl -3- ethyl imidazol(e) tetrafluoro boric acid, 1-
One or more of mixtures of methyl -3- butyl imidazole hexafluorophosphoric acid.
According to another aspect of the present invention, control device passes through the first solenoid directional control valve of control, the second solenoid directional control valve, the
Unlatching, closing sequence and the opening time of three battery valves can be realized the positive reaction chamber, negative reaction chamber and isolation of reactor
Liquid is changed while chamber, successively changes liquid or individually changes liquid.When the positive reaction chamber, negative reaction chamber and separate cavities of reactor change simultaneously
When liquid, control device flows through pressure and the flow of the air-flow of three pneumatic control valves and realizes positive reaction chamber, negative by controlling
Pole reaction chamber and separate cavities synchronize change liquid.Because positive suspension, cathode suspension, the viscosity of electrolyte, flowing velocity and
Flow resistance is different, therefore, the pressure for the gas that each gas flows into branch can be controlled by control pneumatic control valve
And flow, by each gas flow into branch in gas pressure ratio or flow-rate ratio come realize reactor positive reaction chamber,
Negative reaction chamber and separate cavities change liquid synchronism.Due to positive suspension, cathode suspension, the viscosity of electrolyte, flowing speed
Degree and flow resistance can be different according to the concrete condition of different batteries, therefore each gas flows into the gas in branch
Pressure and flow also should be correspondingly changed.
According to another aspect of the present invention, gas supply department can be multiple battery module portions supply driving gas.Also
It is to say, by the way that a caisson is arranged, gas can be compressed via a compressor or multiple compressors, after compression
Gas simultaneously or sequentially provide driving gas for the liquid that changes of multiple reactors.It can simplify system structure in this way.
According to another aspect of the present invention, general pipeline is flowed into gas or gas flows into and is equipped with electricity in branch pipe or gas piping
Liquid solvent filling device is solved, the solvent portion of electrolyte is housed in electrolyte solvent filling device equipped with electrolyte or only.
Electrolyte solvent in electrolyte solvent filling device can be liquid, steam or vapour-liquid mixing.Electrolyte solvent filling dress
It sets so that compressed gas is before entering positive suspension device for storing liquid, cathode suspension device for storing liquid, electrolyte device for storing liquid
Electolyte-absorptive solvent.In this way, the gas after Electolyte-absorptive solvent is entering positive suspension device for storing liquid, cathode suspension
The electrolyte that can marginally take away after liquid device for storing liquid, electrolyte device for storing liquid, will not even be taken away in device for storing liquid is molten
Agent, so as to guarantee that positive suspension device for storing liquid, cathode suspension device for storing liquid, the anode in electrolyte device for storing liquid are outstanding
The stability of concentration of supernatant liquid, cathode suspension and electrolyte.Gas can flow through electrolyte solvent filling device and with it is therein
Liquid or steam state electrolyte solvent come into full contact with, to make gas fully absorb electrolyte solvent, it is preferable that so that in gas
Electrolyte solvent content reaches saturation.
According to another aspect of the present invention, caisson is equipped with air pressure controlling device, and the air pressure controlling device is to detect
Pressure in caisson, when the pressure in caisson is lower than the lower limit of caisson predetermined pressure range, air pressure controlling
Device opens the control valve being connected with making-up air device, is inflated by making-up air device to caisson；When the pressure in caisson
When reaching the upper limit of caisson predetermined pressure range, air pressure controlling device closes the control valve being connected with making-up air device；Work as storage
When pressure in device of air is more than the upper limit of caisson predetermined pressure range, the unlatching of air pressure controlling device is connected with making-up air device
Control valve so that the gas of caisson flow into it is predetermined positioned at caisson until the pressure in caisson in making-up air device
In pressure limit.Wherein, control valve can be realized the two-way flow of gas.
According to another aspect of the present invention, in positive suspension device for storing liquid, cathode suspension device for storing liquid and electrolyte
Liquid level sensor is respectively equipped in device for storing liquid, when positive suspension device for storing liquid, cathode suspension device for storing liquid or electrolyte
When liquid level in device for storing liquid is higher than liquid level upper limit value or is lower than bottom level limit, the control device being connected with liquid level sensor will
Close the first solenoid directional control valve, the second solenoid directional control valve, third solenoid directional control valve and compressor.
According to another aspect of the present invention, general pipeline, gas inflow branch pipe, gas are flowed into gas and flows out general pipeline, gas stream
Out branch pipe, pressure sensor can be equipped in gas piping, pressure sensor detection gas flow into general pipeline, gas flows into branch pipe, gas
Body flows out general pipeline, gas flows out branch pipe, the pressure in gas piping, when pressure is above or below predetermined gas loine pressure range
When, the control device being connected with pressure sensor will close the first solenoid directional control valve, the second solenoid directional control valve, third electromagnetic switch
Valve and compressor are simultaneously alarmed.
According to another aspect of the present invention, which is equipped with gas buffer, which is connected to gas
It flows into general pipeline and three gas and flows into branch pipe, gas buffer is to buffer and collect by compressor compresses and via gas
Body flows into the compressed gas that general pipeline is flowed into and delivers gas to gas and flows into branch pipe.
In addition, according to the present invention, a kind of lithium flow battery system as described above by compressed gas-driven is provided
Working method, the working method include the following steps:
The first step, by caisson nitrogen or inert gas compressed by compressor；
Second step changes liquid, successively changes liquid or individually changes the instruction of liquid according to synchronizing, and control device is simultaneously, sequentially or separately
It opens the first solenoid directional control valve, the second solenoid directional control valve and third solenoid directional control valve and controls and flow through each pneumatic control valve
The pressure and flow of air-flow,
Wherein, compressed gas gas coming through flows into general pipeline and gas flows into branch pipe, changes via the first electromagnetism of unlatching
Enter the gas piping being connected with the first positive suspension device for storing liquid to valve and enter the first positive suspension device for storing liquid,
By the positive suspension in the positive suspension device for storing liquid of gas-powered first, positive suspension is advanced to and the first anode
It suspends in the positive reaction chamber for the reactor that suspension device for storing liquid is connected and by the anode in the positive reaction chamber of reactor
Liquid is released into the second positive suspension device for storing liquid being connected with positive reaction chamber, into the second positive suspension liquid storage dress
The positive suspension set fills the gas propulsive in the second positive suspension device for storing liquid to the second positive suspension liquid storage
It sets in the gas piping being connected, gas enters storage via the first solenoid directional control valve, gas outflow branch pipe and gas outflow general pipeline
In device of air, the first solenoid directional control valve is closed after changing liquid；
Wherein, compressed gas gas coming through flows into general pipeline and gas flows into branch pipe, changes via the second electromagnetism of unlatching
Enter the gas piping being connected with the first cathode suspension device for storing liquid to valve and enter the first cathode suspension device for storing liquid,
By the cathode suspension in gas-powered the first cathode suspension device for storing liquid, cathode suspension is advanced to and the first cathode
It suspends in the negative reaction chamber for the reactor that suspension device for storing liquid is connected and by the cathode in the negative reaction chamber of reactor
Liquid is released into the second cathode suspension device for storing liquid being connected with negative reaction chamber, is filled into the second cathode suspension liquid storage
The cathode suspension set fills the gas propulsive in the second cathode suspension device for storing liquid to the second cathode suspension liquid storage
It sets in the gas piping being connected, gas enters storage via the second solenoid directional control valve, gas outflow branch pipe and gas outflow general pipeline
In device of air, the second solenoid directional control valve is closed after changing liquid；
Wherein, compressed gas gas coming through flows into general pipeline and gas flows into branch pipe, changes via the third electromagnetism of unlatching
Enter the gas piping being connected with the first electrolyte device for storing liquid to valve and enter the first electrolyte device for storing liquid, passes through gas
Drive the electrolyte in the first electrolyte device for storing liquid, electrolyte is advanced to be connected with the first electrolyte device for storing liquid it is anti-
It answers in the separate cavities of device and releases the electrolyte in the separate cavities of reactor to the second electrolyte being connected with separate cavities and store up
In liquid device, into the electrolyte in the second electrolyte device for storing liquid by the gas propulsive in the second electrolyte device for storing liquid to
In the gas piping that second electrolyte device for storing liquid is connected, gas is gentle via third solenoid directional control valve, gas outflow branch pipe
Body outflow general pipeline enters in caisson, and third solenoid directional control valve is closed after changing liquid；
Third step, when positive reaction chamber, negative reaction chamber and separate cavities change liquid whole after, close pneumatic control
Valve, the first solenoid directional control valve, the second solenoid directional control valve, third solenoid directional control valve and compressor.
In two positive suspension device for storing liquid, one can store uncharged positive suspension and another can
To store the positive suspension after charging；In two cathode suspension device for storing liquid, one can store uncharged cathode
Suspension and another can store charging after cathode suspension；In two electrolyte device for storing liquid, it can store
Identical electrolyte, and electrolyte filter can be equipped in electrolyte device for storing liquid.For example, in the first positive suspension
Uncharged electrode suspension is stored in device for storing liquid, the first cathode suspension device for storing liquid, in the second positive suspension liquid storage
Electrode suspension in device, the second cathode suspension device for storing liquid after storage charging.It should be pointed out that herein first, second
It is not to play the role of limitation, and be merely for convenience and purposes of illustration of.That is, any in two positive suspension device for storing liquid
A to can be said to the first positive suspension device for storing liquid, any of two cathode suspension device for storing liquid can be by
Referred to as the first cathode suspension device for storing liquid.Electrolyte device for storing liquid is also such.
When cell reaction device carries out charging reaction, compressed gas is via pneumatic control valve and the first electromagnetic switch
The gas of valve connection flow into branch pipe, the first solenoid directional control valve, with the first gas piping for connecting of anode suspension device for storing liquid into
Enter the first positive suspension device for storing liquid, anode of the positive suspension flow in the first positive suspension device for storing liquid to reactor
Reaction chamber simultaneously pushes positive suspension flow in positive reaction chamber to the second positive suspension device for storing liquid, the second positive suspension
Gas in device for storing liquid is flowed into via gas piping, the first solenoid directional control valve connecting with the second positive suspension device for storing liquid
Branch is flowed out to the gas connecting with the first solenoid directional control valve；Compressed gas is changed via pneumatic control valve, with the second electromagnetism
The gas connected to valve flows into branch pipe, the second solenoid directional control valve, the gas piping connecting with the first cathode suspension device for storing liquid
Cathode suspension flow bearing to reactor into the first cathode suspension device for storing liquid, in the first cathode suspension device for storing liquid
Pole reaction chamber simultaneously pushes the cathode suspension flow in negative reaction chamber to the second cathode suspension device for storing liquid, and the second cathode suspends
Gas in liquid device for storing liquid is via gas piping, the second solenoid directional control valve stream connecting with the second cathode suspension device for storing liquid
Enter to the gas being connect with the second solenoid directional control valve and flows out branch.When cell reaction device carries out exoelectrical reaction, compressed gas
Body flows into branch pipe, the first solenoid directional control valve and the second anode via pneumatic control valve, the gas connecting with the first solenoid directional control valve
The gas piping of suspension device for storing liquid connection enters the second positive suspension device for storing liquid, the second positive suspension device for storing liquid
In positive reaction chamber from positive suspension flow to reactor and push the positive suspension flow in positive reaction chamber to first just
Pole suspension device for storing liquid, the gas in the first positive suspension device for storing liquid connect via with the first positive suspension device for storing liquid
Gas piping, the first solenoid directional control valve connect is flowed into the gas outflow branch connecting with the first solenoid directional control valve；It is compressed
Gas via pneumatic control valve, the gas being connect with the second solenoid directional control valve flow into branch pipe, the second solenoid directional control valve, with it is second negative
The gas piping of pole suspension device for storing liquid connection enters the second cathode suspension device for storing liquid, the second cathode suspension liquid storage dress
Negative reaction chamber from the cathode suspension flow set to reactor and push cathode suspension flow in negative reaction chamber to first
Cathode suspension device for storing liquid, gas in the first cathode suspension device for storing liquid via with the first cathode suspension device for storing liquid
The gas piping of connection, the second solenoid directional control valve are flowed into the gas outflow branch connecting with the second solenoid directional control valve.
In addition, needing the separate cavities to reactor when detecting cell reaction device internal resistance increase or short circuit
It carries out changing liquid.For example, compressed gas via pneumatic control valve, the gas being connect with third solenoid directional control valve flow into branch pipe,
Third solenoid directional control valve, the gas piping connecting with the first electrolyte device for storing liquid enter the first electrolyte device for storing liquid, electrolysis
The flow direction of liquid is the separate cavities for flowing to reactor from the first electrolyte device for storing liquid, flows to the second electrolyte liquid storage dress again
It sets, the gas in the second electrolyte device for storing liquid is via gas piping, the third electromagnetism connecting with the second electrolyte device for storing liquid
Reversal valve is flowed into the gas outflow branch connecting with third solenoid directional control valve.Electrolyte in the first electrolyte device for storing liquid
When being higher than the liquid level upper limit lower than the electrolyte in liquid level lower limit or the second electrolyte device for storing liquid, carry out opposite with the above process
Electrolyte reversely change liquid.
Liquid is changed by what the switching of solenoid directional control valve can be realized above-mentioned positive and negative both direction.
Advantage of the present invention:
1) it by compressed nitrogen or inert gas, generates air pressure driving electrodes suspension and back and forth flows, can effectively drop
Low energy consumption improves battery system operation efficiency, improves battery system leakproofness, guaranteeing battery system safe and reliable operation and prolong
Long battery life；
2) by compressed gas-driven electrode suspension electrolyte is back and forth flowed, so that whole operation is simply and just
In control.
Detailed description of the invention
Fig. 1 is the schematic diagram according to the lithium flow battery system of the prior art；
Fig. 2 is the schematic diagram of lithium flow battery system according to the present invention；
Fig. 3 is the schematic diagram according to the lithium flow battery system of another embodiment of the present invention；
Fig. 4 is the schematic diagram of device for storing liquid according to the present invention；
Fig. 5 is the schematic diagram of cell reaction device according to the present invention；
Fig. 6 is the control figure of lithium flow battery system according to the present invention.
Reference signs list
101 --- reactor
102 --- positive suspension device for storing liquid
103 --- cathode suspension device for storing liquid
104 --- liquid line
105 --- liquid pump
201 --- reactor
202a, 202b --- positive suspension device for storing liquid
203a, 203b --- cathode suspension device for storing liquid
204a, 204b --- electrolyte device for storing liquid
205a, 205b, 205c --- solenoid directional control valve
206a, 206b, 206c --- pneumatic control valve
207 --- gas flows into general pipeline
208a, 208b, 208c --- gas flow into branch pipe
209 --- gas flows out general pipeline
210a, 210b, 210c --- gas flow out branch pipe
211 --- caisson
212 --- compressor
213 --- making-up air device
214 --- electrolyte solvent filling device
215 --- gas buffer
216 --- air pressure controlling device
301 --- gas supply department
302 --- battery module portion
401 --- top port
402 --- bottom port
403 --- liquid level sensor
501 --- positive reaction chamber
502 --- negative reaction chamber
503 --- separate cavities
601 --- control device
602 --- pressure sensor
Specific embodiment
Below in conjunction with attached drawing, by embodiment, the present invention will be further described.
Fig. 1 is the schematic diagram according to the lithium flow battery system of the prior art.The system includes that reactor 101, anode are outstanding
Supernatant liquid device for storing liquid 102, cathode suspension device for storing liquid 103, liquid line 104 and liquid pump 105.By the pumping of liquid pump,
So that carrying out the reciprocal flowing of electrode suspension between device for storing liquid and reactor.
Fig. 2 is the schematic diagram of lithium flow battery system according to the present invention.The system includes: control device；Gas supply
Portion, the gas supply department include caisson 211 and compressor 212；And battery module portion, the battery module portion include reaction
Device 201, two positive suspension device for storing liquid 202a, 202b, two cathode suspension device for storing liquid 203a, 203b, two electricity
Solve liquid device for storing liquid 204a, 204b, multiple solenoid directional control valve 205a, 205b, 205c, multiple pneumatic control valve 206a, 206b,
206c, gas piping, liquid line, gas flow into general pipeline 207, gas flows into branch pipe 208a, 208b, 208c, gas flow out always
Pipe 209 and gas flow out branch pipe 210a, 210b, 210c.Herein it should be pointed out that a gas supply department 301 can be more simultaneously
A battery module portion 302 provides and changes liquid, as shown in Figure 3.Lithium flow battery system shown in Fig. 3 and lithium liquid stream shown in Fig. 2 electricity
The principle of cell system is the same, therefore, will hereafter be illustrated only in conjunction with Fig. 2.
Store the nitrogen or inert gas of certain pressure in caisson 211, which is, for example, 0MPa~0.1Mpa,
Caisson 211 is connected with compressor 212.Compressor can be any common gas compressor, as long as the compression function
Enough that gas compression is reached scheduled operating pressure, which is, for example, 0.1MPa~10MPa.Compressor
212 connection gases flow into general pipeline 207, and gas is branched off into three gases inflow branch pipe 208a, 208b, 208c after flowing into general pipeline,
It is flowed on branch pipe in three gases and is respectively equipped with pneumatic control valve 206a, 206b, 206c, pneumatic control valve, which can control, flows through gas
Body flows into the pressure and flow of the air-flow of branch pipe.It is controlled by controlling pressure and the flow of air-flow through compressed gas-driven
The flow velocity and flow of liquid.System further includes gas outflow general pipeline 209, and one end of gas outflow general pipeline is connected to caisson
211 and the other end be branched off into the outflow of three gases branch pipe 210a, 210b, 210c.Each gas flows into branch pipe and each gas
Outflow branch pipe forms one group and is connected with a solenoid directional control valve.That is, three groups of gases flow into branch pipe and gas outflow
Branch pipe (208a and 210a, 208b and 210b, 208c and 210c) is connected with three solenoid directional control valves 205a, 205b, 205c respectively
It connects.The solenoid directional control valve for example can be three-position four-way valve (as shown in Figure 2), to realize the disconnection of gas circuit and pair of gas
To flowing.Each solenoid directional control valve is connected via gas piping with two device for storing liquid (as shown in Figure 4), such as just with two
Pole suspension device for storing liquid, two cathode suspension device for storing liquid or two electrolyte device for storing liquid are connected, and two anodes are outstanding
Supernatant liquid device for storing liquid, two cathode suspension device for storing liquid and two electrolyte device for storing liquid are again respectively via liquid line and anti-
The positive reaction chamber 501 of device, negative reaction chamber 502 is answered to be connected (as shown in Figure 5) with separate cavities 503.
In addition, as shown in fig. 6, system is equipped with control device 601, each valve of the control device to control whole system
Unlatching, the closing, opening time, opening sequence of door, and be connected with each sensor of system, to realize to whole system
Control.
The specific configuration of the lithium flow battery system is described below.
Store the nitrogen or lazy of predetermined pressure range --- for example: 0MPa~0.1MPa --- in caisson 211
Property gas.When system starts, nitrogen or inert gas in caisson 211 are compressed by compressor 212, are pressed
The predetermined gas loine pressure range --- for example: 0MPa~0.1MPa --- that the pressure value of gas after contracting is located at system is interior.
Preferably, the gas piping and the gas in device for storing liquid of whole system are can to guarantee to pass through in this way in the state of pressurization
Gas after compressor compresses enters stability when gas piping and gas flow between each device of whole system.
In addition, being all Fluid Sealing between all gas pipeline, liquid line and pipeline and each device in system, and energy
It is enough to be worked normally in predetermined pressure range.When the air pressure controlling device 216 being set in caisson 211 detects that gas storage fills
When gas pressure in setting is lower than the lower limit of caisson predetermined pressure range, air pressure controlling device 216 will be open at gas storage dress
The control valve between 211 and making-up air device 213 is set, tonifying Qi is carried out to caisson by making-up air device；When air pressure controlling device
When 216 pressure for detecting in caisson reach the upper limit of caisson predetermined pressure range, air pressure controlling device 216 will be closed
Close the control valve between caisson 211 and making-up air device 213；When the pressure in caisson is more than the pre- level pressure of caisson
When the upper limit of power range, air pressure controlling device 216 opens the control valve being connected with making-up air device, so that the gas of caisson is anti-
Into inflow making-up air device until the pressure in caisson is located in caisson predetermined pressure range.Herein it should be pointed out that
Pressure value in caisson 211 can also be fed back to control device by air pressure controlling device 216, be controlled by control device
Control valve between caisson 211 and making-up air device 213 unlatch and close and airflow direction.It can be provided for system more
A making-up air device can be continuously caisson tonifying Qi by replacing making-up air device；Multiple making-up air devices can also be via multiple
Different control valves is connected to multiple ports of caisson, to realize the continuous tonifying Qi of caisson.
For ease of description, one in two positive suspension device for storing liquid is known as the first positive suspension storage here
Another in two positive suspension device for storing liquid is known as the second positive suspension device for storing liquid 202b by liquid device 202a；
One in two cathode suspension device for storing liquid is known as the first cathode suspension device for storing liquid 203a, two cathode are suspended
Another in liquid device for storing liquid is known as the second cathode suspension device for storing liquid 203b；By one in two electrolyte device for storing liquid
It is a to be known as the first electrolyte device for storing liquid 204a, another in two electrolyte device for storing liquid is known as the second electrolyte liquid storage
Device 204b.First, second herein be should be pointed out that only to facilitate describing, without playing the role of limitation.
Anode is equipped in the positive suspension device for storing liquid 202b of the first anode suspension device for storing liquid 202a and second
The capacity of suspension, positive suspension is located in preset range, such as the volume of positive suspension accounts for positive suspension liquid storage dress
Set the 1%-99% of volume.Gas (nitrogen or inert gas) is also housed in positive suspension device for storing liquid, gas is located at
The top of positive suspension.Equally, in the first cathode suspension device for storing liquid 203a and the second cathode suspension device for storing liquid
Cathode suspension is equipped in 203b, the capacity of cathode suspension is located in preset range, such as the volume of cathode suspension accounts for
The 1%-99% of cathode suspension device for storing liquid volume.Being also housed within gas in cathode suspension device for storing liquid, (nitrogen is lazy
Property gas), gas is located at the top of cathode suspension.Equally, it is stored up in the first electrolyte device for storing liquid 204a and the second electrolyte
Electrolyte is equipped in liquid device 204b, the capacity of electrolyte is located in preset range, such as the volume of electrolyte accounts for electrolyte
The 1%-99% of device for storing liquid volume.Gas (nitrogen or inert gas), gas position have been also housed in electrolyte device for storing liquid
In the top of electrolyte.Liquid level sensor 403 is respectively equipped in device for storing liquid, to detect suspension in device for storing liquid or
The liquid level (volume) of electrolyte.If the liquid level of suspension or electrolyte is lower than the lower limit of preset range or higher than preset range
The upper limit when, control device 601 changes halt system liquid work, closes each valve and compressor, and provides to operator
Such as the warning of the forms such as sound, light.Because compressed gas in device for storing liquid may when the liquid level in device for storing liquid is too low
Cell reaction device can be entered；When the liquid level in device for storing liquid is excessively high, the liquid in device for storing liquid may enter gas piping,
It will affect the safety and stability of whole system in this way.
The bottom port of the positive suspension device for storing liquid 202b of first anode suspension device for storing liquid 202a and second passes through
The connection of the positive reaction chamber of liquid line and reactor, the positive suspension storage of the first anode suspension device for storing liquid 202a and second
The top port of liquid device 202b is connect by gas piping with the first solenoid directional control valve 205a；First cathode suspension liquid storage dress
The bottom port for setting 203a and the second cathode suspension device for storing liquid 203b passes through the negative reaction chamber of liquid line and reactor
The top port of connection, the first cathode suspension device for storing liquid 203a and the second cathode suspension device for storing liquid 203b pass through gas
Pipeline is connect with the second solenoid directional control valve 205b；First electrolyte device for storing liquid 204a's and the second electrolyte device for storing liquid 204b
Bottom port is connected by the separate cavities of liquid line and reactor, the first electrolyte device for storing liquid 204a and the storage of the second electrolyte
The top port of liquid device 204b is connect by gas piping with third solenoid directional control valve 205c.
Solenoid directional control valve herein for example can be three-position four-way valve.The specific configuration of cell reaction device is as shown in Figure 5.Instead
It answers and is equipped with porous anode collector, porous negative current collector in the shell of device.The side of porous anode collector and reactor
Shell constitutes positive reaction chamber 501, and the other side of porous anode collector can be equipped with diaphragm.The side of porous negative current collector with
The shell of reactor constitutes negative reaction chamber 502, and the other side of porous negative current collector can be equipped with diaphragm.In porous anode afflux
Separate cavities 503 are formed between body and porous negative current collector.Full of positive suspension in positive reaction chamber, in negative reaction chamber
In be full of cathode suspension, and in separate cavities be full of electrolyte.When by controlling the unlatching of each solenoid directional control valve, closing
Between, it may be implemented to change liquid while positive reaction chamber, negative reaction chamber and separate cavities, successively change liquid or individually change liquid.By changing
Become unlatching, the closing sequence of each solenoid directional control valve, thus it is possible to vary positive reaction chamber, negative reaction chamber and the separate cavities of reactor
Change liquid sequence.In addition, can be realized the disconnection of gas circuit and the two-way flow of gas when electromagnetic switch Vavle switching.Specifically
It says, by switching the first solenoid directional control valve 205a, may be implemented from the first positive suspension device for storing liquid 202a, positive reaction chamber
To the sequence of flow of the second positive suspension device for storing liquid 202b, also may be implemented in turn from the second positive suspension liquid storage dress
The sequence of flow of 202b, positive reaction chamber to the first positive suspension device for storing liquid 202a are set, or stops changing liquid.For cathode
Suspension and electrolyte are also such.When positive reaction chamber, negative reaction chamber and separate cavities carry out changing liquid simultaneously, pass through control
Pneumatic control valve 206a, 206b, the 206c being set in gas inflow branch pipe 208a, 208b, 208c, the positive suspension of realization,
Cathode suspension and electrolyte change liquid synchronism.That is, control gas flows into general pipeline by control pneumatic control valve
207 flow into gas flow and the pressure distribution of branch pipe 208a, 208b, 208c to each gas, realize that positive reaction chamber, cathode are anti-
Start to change liquid while answering chamber and separate cavities, change liquid speed sync and be simultaneously stopped and change liquid.
Each gas piping, gas flow into branch pipe 208a, 208b, 208c, gas outflow branch pipe 210a, 210b, 210c,
Gas flows into general pipeline 207 and gas outflow general pipeline 209 and is also provided with pressure sensor 602, and pressure sensor detection is above-mentioned
Pressure in gas piping, if the pressure in wherein one or more gas pipings is above or below predetermined gas loine pressure
Range, then the control device 601 being connected with pressure sensor will close all valves of system in time --- pneumatic control valve,
Solenoid directional control valve etc. --- and compressor 212 and alarm, to carry out malfunction elimination to gas piping in time.
Electrolyte solvent filling device 214 is also provided in gas piping, compressed gas enters positive suspension storage
Electricity is sucked via electrolyte solvent filling device 214 before liquid device, cathode suspension device for storing liquid and electrolyte device for storing liquid
Liquid solvent vapo(u)r is solved, the electrolyte solvent concentration being preferably so that in compressed gas reaches saturation.Electrolyte solvent filling device
214 can be set gas flow into general pipeline 207 or setting flow into branch pipe 208a, 208b, 208c in three gases or
Person is arranged in each gas piping being connected with device for storing liquid.By steaming the electrolyte solvent of compressed gas sucking saturation
Vapour, it is possible to reduce, even avoid compressed gas from taking away electrolyte solvent from device for storing liquid, can guarantee in device for storing liquid in this way
Positive suspension and cathode suspension keep certain required concentration for a long time.
General pipeline 207 is flowed into gas and gas flows between branch pipe 208a, 208b, 208c and gas buffer can be set
215, gas inflow general pipeline 207 are connected to gas buffer 215 and gas buffer 215 is connected to gas and flows into branch pipe
208a, 208b, 208c, gas buffer 215 is to buffer and collect the compressed gas flowed out from compressor 212.In this way may be used
It is flowed into branch pipe 208a, 208b, 208c so that the gas compressed through compressor 212 more smoothly flows into gas.
The working method of lithium flow battery system according to the present invention is described below.
Firstly, control device 601 will receive the pressure in the caisson 211 that air pressure controlling device 216 detects, if
Pressure in caisson is lower than the lower limit of caisson predetermined pressure range, then using making-up air device 213 to caisson
Carry out tonifying Qi；If the pressure in caisson is located at caisson predetermined pressure range, control device 601 will be opened and be stored up
Device of air 211 and compressor 212, so that the nitrogen or inert gas in caisson are compressed by compressor 212；
Then, compressed gas flows into general pipeline 207 into gas buffer cylinder by gas, and gas is in gas buffer cylinder
It is buffered and enters gas and flow into branch pipe 208a, 208b, 208c；
Next, control device 601 changes liquid, successively changes liquid or individually changes the instruction of liquid according to synchronizing, control three it is pneumatic
The stream pressure and flow of control valve 206a, 206b, 206c, and at the same time, sequentially or separately open the first solenoid directional control valve
205a, the second solenoid directional control valve 205b and third solenoid directional control valve 205c, in which:
When charging to electrode suspension, compressed gas is via the first solenoid directional control valve 205a and gas piping
The uncharged positive suspension in the first positive suspension device for storing liquid 202a is forced to enter the positive reaction chamber of reactor, it will
The positive suspension to have charged in positive reaction chamber is advanced in the second positive suspension device for storing liquid 202b；Compressed gas
It is forced via the second solenoid directional control valve 205b and gas piping uncharged negative in the first cathode suspension device for storing liquid 203a
Pole suspension enters the negative reaction chamber of reactor, and the cathode suspension to have charged in negative reaction chamber is advanced to the second cathode
In suspension device for storing liquid 203b；
When discharging electrode suspension, compressed gas is via the first solenoid directional control valve 205a and gas piping
The positive suspension to have charged in the second positive suspension device for storing liquid 202b is forced to enter the positive reaction chamber of reactor, it will
The positive suspension to have discharged in positive reaction chamber is advanced in the first positive suspension device for storing liquid 202a；Compressed gas
Body forces having charged in the second cathode suspension device for storing liquid 203b via the second solenoid directional control valve 205b and gas piping
Cathode suspension enters the negative reaction chamber of reactor, and the cathode suspension to have discharged in negative reaction chamber is advanced to first
In cathode suspension device for storing liquid 203a；And
When detecting cell reaction device internal resistance increase or short circuit, compressed gas is via third solenoid valve
The filtered electrolyte in the first electrolyte device for storing liquid 204a is forced to enter the separate cavities of reactor with gas piping, it will be every
It is advanced in the second electrolyte device for storing liquid 204b and is filtered from the electrolyte in chamber；Or compressed gas is via third
Solenoid valve and gas piping force the filtered electrolyte in the second electrolyte device for storing liquid 204b to enter the isolation of reactor
Electrolyte in separate cavities is advanced in the first electrolyte device for storing liquid 204a and is filtered by chamber；
Later, after changing liquid or when the liquid level in device for storing liquid is higher than liquid level upper limit value or is lower than bottom level limit
When, control device 601 correspondingly closes the first solenoid directional control valve 205a, the second solenoid directional control valve 205b, third solenoid directional control valve
205c；
Finally, when positive reaction chamber, negative reaction chamber and separate cavities change liquid whole after, control device 601 is closed
Whole valves and compressor 212.
The specific embodiment of the invention is not intended to limit the invention.Anyone skilled in the art is not departing from
Under technical solution of the present invention ambit, all technical solution of the present invention is made using the methods and technical content of the disclosure above
Many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all without departing from the technology of the present invention side
The content of case, any simple modifications, equivalents, and modifications made to the above embodiment according to the technical essence of the invention,
It still falls within the scope of protection of the technical scheme of the present invention.
Claims (22)
1. a kind of lithium flow battery system by compressed gas-driven, which is characterized in that the system includes: control device, gas
Body supply department and battery module portion,
Wherein, the gas supply department includes:
Caisson is stored with nitrogen in the caisson；
Compressor, the compressor are connected to the caisson and compress the nitrogen；
Wherein, the battery module portion includes:
Reactor, the reactor are equipped with positive reaction chamber, negative reaction chamber and separate cavities；
Gas flows into general pipeline, and the gas flows into general pipeline and is connected to the compressor, to input gas to the battery module portion
Body；
Gas flows into branch pipe, and three gases flow into branch pipe and flow into general pipeline branch from the gas；
Gas flows out general pipeline, and the gas outflow general pipeline is connected to the caisson, to export from the battery module portion
Gas；
Gas flows out branch pipe, and three gases flow out branch pipe and flow out general pipeline branch from the gas；
Pneumatic control valve, three pneumatic control valves are separately positioned on three gases and flow on branch pipe, to control the gas
Body flows into air pressure and the flow of the air-flow in branch pipe；
One end of first positive suspension device for storing liquid, the described first positive suspension device for storing liquid is connected to by liquid line
The positive reaction chamber of the reactor, the described first positive suspension device for storing liquid is to store positive suspension；
One end of second positive suspension device for storing liquid, the described second positive suspension device for storing liquid is connected to by liquid line
The positive reaction chamber of the reactor, the described second positive suspension device for storing liquid is to store positive suspension；
One end of first cathode suspension device for storing liquid, the first cathode suspension device for storing liquid is connected to by liquid line
The negative reaction chamber of the reactor, the first cathode suspension device for storing liquid is to store cathode suspension；
One end of second cathode suspension device for storing liquid, the second cathode suspension device for storing liquid is connected to by liquid line
The negative reaction chamber of the reactor, the second cathode suspension device for storing liquid is to store cathode suspension；
One end of first electrolyte device for storing liquid, the first electrolyte device for storing liquid is connected to the reaction by liquid line
The separate cavities of device, the first electrolyte device for storing liquid is to store electrolyte；
One end of second electrolyte device for storing liquid, the second electrolyte device for storing liquid is connected to the reaction by liquid line
The separate cavities of device, the second electrolyte device for storing liquid is to store electrolyte；
First solenoid directional control valve, the second solenoid directional control valve, third solenoid directional control valve, first solenoid directional control valve connect at one end
Wherein one group and described in being connected to by gas piping in the other end of branch pipes and gas outflow branch pipe is flowed into three groups of gases
First positive suspension device for storing liquid and the second positive suspension device for storing liquid, second solenoid directional control valve are connected at one end
What three groups of gases flowed into branch pipes and gas outflow branch pipe wherein one group and is connected to described the by gas piping in the other end
One cathode suspension device for storing liquid and the second cathode suspension device for storing liquid, the third solenoid directional control valve are connected to three at one end
What group gas flowed into branch pipe and gas outflow branch pipe wherein one group and is connected to described first by gas piping in the other end
Electrolyte device for storing liquid and the second electrolyte device for storing liquid, pass through first solenoid directional control valve, the second solenoid directional control valve, third
The switching of solenoid directional control valve can disconnect air-flow or make with positive suspension device for storing liquid, cathode suspension device for storing liquid,
The gas in gas piping that electrolyte device for storing liquid is connected can commutate flowing.
2. the lithium flow battery system according to claim 1 by compressed gas-driven, wherein the control device control
It makes first solenoid directional control valve, second solenoid directional control valve, the unlatching of the third solenoid directional control valve, closing sequence and opens
Open the time, control via the pneumatic control valve enter the gas flow into branch pipe air-flow pressure and flow and control
The compressor unlatches and closes.
3. the lithium flow battery system according to claim 1 by compressed gas-driven, wherein the control device is logical
It crosses and controls first solenoid directional control valve, second solenoid directional control valve, the unlatching of the third battery valve, closing sequence and open
Open the time change liquid while can be realized the positive reaction chamber, negative reaction chamber and separate cavities of the reactor, successively change liquid or
Individually change liquid.
4. the lithium flow battery system according to claim 3 by compressed gas-driven, wherein when the reactor
When positive reaction chamber, negative reaction chamber and separate cavities change liquid simultaneously, the control device by control flow through three it is described pneumatic
The pressure of the air-flow of control valve realized with flow the positive reaction chamber, negative reaction chamber and separate cavities synchronize change liquid.
5. passing through the lithium flow battery system of compressed gas-driven described in any one of -4 according to claim 1, wherein described
Gas supply department can be multiple battery module portion supply driving gases.
6. passing through the lithium flow battery system of compressed gas-driven described in any one of -4 according to claim 1, wherein in institute
Gas is stated to flow into general pipeline, gas inflow branch pipe or the gas piping equipped with electrolyte solvent filling device, the electricity
Solution liquid solvent filling device make gas enter the positive suspension device for storing liquid, the cathode suspension device for storing liquid,
Electolyte-absorptive solvent before the electrolyte device for storing liquid.
7. passing through the lithium flow battery system of compressed gas-driven described in any one of -4 according to claim 1, wherein in institute
It states and is additionally provided with making-up air device in gas supply department and is equipped with air pressure controlling device, the air pressure controlling in the caisson
Device is to detect the pressure in the caisson, when the pressure in the caisson is lower than caisson predetermined pressure model
When the lower limit enclosed, the air pressure controlling device opens the control valve being connected with the making-up air device, passes through the making-up air device pair
The caisson inflation；It is described when the pressure in the caisson reaches the upper limit of caisson predetermined pressure range
Air pressure controlling device closes the control valve being connected with the making-up air device；When the pressure in the caisson is more than gas storage
When the upper limit of device predetermined pressure range, the air pressure controlling device opens the control valve being connected with the making-up air device,
So that the gas of the caisson flows into the making-up air device until the pressure in the caisson is located at caisson
In predetermined pressure range.
8. passing through the lithium flow battery system of compressed gas-driven described in any one of -4 according to claim 1, wherein in institute
It states in positive suspension device for storing liquid, the cathode suspension device for storing liquid and the electrolyte device for storing liquid and is respectively equipped with liquid level
Sensor, when in the positive suspension device for storing liquid, the cathode suspension device for storing liquid or the electrolyte device for storing liquid
Liquid level when being higher than liquid level upper limit value or being lower than bottom level limit, the control device that is connected with the liquid level sensor will pass
Close first solenoid directional control valve, second solenoid directional control valve and the third solenoid directional control valve and the compressor.
9. passing through the lithium flow battery system of compressed gas-driven described in any one of -4 according to claim 1, wherein in institute
It states gas and flows into general pipeline, gas inflow branch pipe, gas outflow general pipeline, the gas outflow branch pipe, the flue
Pressure sensor is equipped in road, the pressure sensor detects the gas and flows into general pipeline, the gas inflow branch pipe, the gas
Body flows out general pipeline, the gas flows out branch pipe, the pressure in the gas piping, when pressure is above or below predetermined gas pipeline
When pressure limit, the control device being connected with the pressure sensor will close first solenoid directional control valve, the second electricity
Magnetic reversal valve and third solenoid directional control valve and compressor are simultaneously alarmed.
10. passing through the lithium flow battery system of compressed gas-driven described in any one of -4 according to claim 1, wherein institute
Battery module portion is stated equipped with gas buffer, the gas buffer is connected to the gas and flows into general pipeline and the gas
Body flows into branch pipe, and the gas buffer is to buffer and collect through the compressor compresses and flow into via the gas
The gas of general pipeline inflow simultaneously delivers gas in the gas inflow branch pipe.
11. a kind of work of such as lithium flow battery system of any of claims 1-10 by compressed gas-driven
Method, which is characterized in that the working method includes the following steps:
The first step compresses the nitrogen in the caisson by the compressor；
Second step, according to the positive reaction chamber, negative reaction chamber and separate cavities synchronize change liquid, successively change liquid or individually change liquid
Instruction, the control device simultaneously, sequentially or separately open first solenoid directional control valve, second solenoid directional control valve and institute
It states third solenoid directional control valve and controls the pressure and flow for flowing through the air-flow of each pneumatic control valve,
Wherein, compressed gas flows through that the gas flows into general pipeline and the gas flows into branch pipe, via described the of unlatching
One solenoid directional control valve enters the gas piping being connected with the described first positive suspension device for storing liquid and enters described first just
Pole suspension device for storing liquid will be positive by the positive suspension in the described in gas-powered first positive suspension device for storing liquid
Suspension is advanced in the positive reaction chamber for the reactor being connected with the described first positive suspension device for storing liquid and will
Positive suspension in the positive reaction chamber of the reactor is released to described second to be connected with the positive reaction chamber just
It is positive by described second into the positive suspension in the described second positive suspension device for storing liquid in the suspension device for storing liquid of pole
Gas propulsive in suspension device for storing liquid is into the gas piping being connected with the described second positive suspension device for storing liquid, gas
Body enters the caisson via first solenoid directional control valve, gas outflow branch pipe and gas outflow general pipeline
In, first solenoid directional control valve is closed after changing liquid；
Wherein, compressed gas flows through that the gas flows into general pipeline and the gas flows into branch pipe, via described the of unlatching
Two solenoid directional control valves are into the gas piping being connected with the first cathode suspension device for storing liquid and negative into described first
Pole suspension device for storing liquid, by the cathode suspension in the first cathode suspension device for storing liquid described in gas-powered, by cathode
Suspension is advanced in the negative reaction chamber for the reactor being connected with the first cathode suspension device for storing liquid and will
Cathode suspension in the negative reaction chamber of the reactor is released negative to described second to be connected with the negative reaction chamber
In the suspension device for storing liquid of pole, into the cathode suspension in the second cathode suspension device for storing liquid by second cathode
Gas propulsive in suspension device for storing liquid is into the gas piping being connected with the second cathode suspension device for storing liquid, gas
Body enters the caisson via second solenoid directional control valve, gas outflow branch pipe and gas outflow general pipeline
In, second solenoid directional control valve is closed after changing liquid；
Wherein, compressed gas flows through that the gas flows into general pipeline and the gas flows into branch pipe, via described the of unlatching
Three solenoid directional control valves enter the gas piping being connected with the first electrolyte device for storing liquid and enter first electrolyte
Electrolyte is advanced to and described by device for storing liquid by the electrolyte in the first electrolyte device for storing liquid described in gas-powered
In the separate cavities for the reactor that one electrolyte device for storing liquid is connected and by the electrolyte in the separate cavities of the reactor
It releases in the second electrolyte device for storing liquid being connected with the separate cavities, into the second electrolyte device for storing liquid
In electrolyte the gas propulsive in the second electrolyte device for storing liquid is connected to the second electrolyte device for storing liquid
In the gas piping connect, gas flows out general pipeline via the third solenoid directional control valve, gas outflow branch pipe and the gas
Into in the caisson, the third solenoid directional control valve is closed after changing liquid；
Third step, when the positive reaction chamber, the negative reaction chamber and the separate cavities change liquid whole after, close institute
State pneumatic control valve, first solenoid directional control valve, second solenoid directional control valve, the third solenoid directional control valve and described
Compressor.
12. a kind of lithium flow battery system by compressed gas-driven, which is characterized in that the system includes: control device, gas
Body supply department and battery module portion,
Wherein, the gas supply department includes:
Caisson is stored with inert gas in the caisson；
Compressor, the compressor are connected to the caisson and compress the inert gas；
Wherein, the battery module portion includes:
Reactor, the reactor are equipped with positive reaction chamber, negative reaction chamber and separate cavities；
Gas flows into general pipeline, and the gas flows into general pipeline and is connected to the compressor, to input gas to the battery module portion
Body；
Gas flows into branch pipe, and three gases flow into branch pipe and flow into general pipeline branch from the gas；
Gas flows out general pipeline, and the gas outflow general pipeline is connected to the caisson, to export from the battery module portion
Gas；
Gas flows out branch pipe, and three gases flow out branch pipe and flow out general pipeline branch from the gas；
Pneumatic control valve, three pneumatic control valves are separately positioned on three gases and flow on branch pipe, to control the gas
Body flows into air pressure and the flow of the air-flow in branch pipe；
One end of first positive suspension device for storing liquid, the described first positive suspension device for storing liquid is connected to by liquid line
The positive reaction chamber of the reactor, the described first positive suspension device for storing liquid is to store positive suspension；
One end of second positive suspension device for storing liquid, the described second positive suspension device for storing liquid is connected to by liquid line
The positive reaction chamber of the reactor, the described second positive suspension device for storing liquid is to store positive suspension；
One end of first cathode suspension device for storing liquid, the first cathode suspension device for storing liquid is connected to by liquid line
The negative reaction chamber of the reactor, the first cathode suspension device for storing liquid is to store cathode suspension；
One end of second cathode suspension device for storing liquid, the second cathode suspension device for storing liquid is connected to by liquid line
The negative reaction chamber of the reactor, the second cathode suspension device for storing liquid is to store cathode suspension；
One end of first electrolyte device for storing liquid, the first electrolyte device for storing liquid is connected to the reaction by liquid line
The separate cavities of device, the first electrolyte device for storing liquid is to store electrolyte；
One end of second electrolyte device for storing liquid, the second electrolyte device for storing liquid is connected to the reaction by liquid line
The separate cavities of device, the second electrolyte device for storing liquid is to store electrolyte；
First solenoid directional control valve, the second solenoid directional control valve, third solenoid directional control valve, first solenoid directional control valve connect at one end
Wherein one group and described in being connected to by gas piping in the other end of branch pipes and gas outflow branch pipe is flowed into three groups of gases
First positive suspension device for storing liquid and the second positive suspension device for storing liquid, second solenoid directional control valve are connected at one end
What three groups of gases flowed into branch pipes and gas outflow branch pipe wherein one group and is connected to described the by gas piping in the other end
One cathode suspension device for storing liquid and the second cathode suspension device for storing liquid, the third solenoid directional control valve are connected to three at one end
What group gas flowed into branch pipe and gas outflow branch pipe wherein one group and is connected to described first by gas piping in the other end
Electrolyte device for storing liquid and the second electrolyte device for storing liquid, pass through first solenoid directional control valve, the second solenoid directional control valve, third
The switching of solenoid directional control valve can disconnect air-flow or make with positive suspension device for storing liquid, cathode suspension device for storing liquid,
The gas in gas piping that electrolyte device for storing liquid is connected can commutate flowing.
13. the lithium flow battery system according to claim 12 by compressed gas-driven, wherein the control device
Control first solenoid directional control valve, second solenoid directional control valve, the unlatching of the third solenoid directional control valve, closing sequence and
Opening time, control via the pneumatic control valve enter the gas flow into branch pipe air-flow pressure and flow and control
Make unlatching and closing for the compressor.
14. the lithium flow battery system according to claim 12 by compressed gas-driven, wherein the control device
By control first solenoid directional control valve, second solenoid directional control valve, the unlatching of the third battery valve, closing sequence and
Opening time changes liquid, successively changes liquid while can be realized the positive reaction chamber, negative reaction chamber and separate cavities of the reactor
Or individually change liquid.
15. the lithium flow battery system according to claim 14 by compressed gas-driven, wherein when the reactor
Positive reaction chamber, negative reaction chamber and separate cavities simultaneously when changing liquid, the control device flows through three gas by control
The pressure of the air-flow of dynamic control valve realized with flow the positive reaction chamber, negative reaction chamber and separate cavities synchronize change liquid.
16. passing through the lithium flow battery system of compressed gas-driven described in any one of 2-15 according to claim 1, wherein
The gas supply department can be multiple battery module portion supply driving gases.
17. passing through the lithium flow battery system of compressed gas-driven described in any one of 2-15 according to claim 1, wherein
It is flowed into general pipeline, gas inflow branch pipe or the gas piping in the gas and is equipped with electrolyte solvent filling device, institute
Stating electrolyte solvent filling device makes gas enter the positive suspension device for storing liquid, cathode suspension liquid storage dress
It sets, Electolyte-absorptive solvent before the electrolyte device for storing liquid.
18. passing through the lithium flow battery system of compressed gas-driven described in any one of 2-15 according to claim 1, wherein
It is additionally provided with making-up air device in the gas supply department and is equipped with air pressure controlling device, the air pressure in the caisson
Regulation device is to detect the pressure in the caisson, when the pressure in the caisson is lower than the pre- level pressure of caisson
When the lower limit of power range, the air pressure controlling device opens the control valve being connected with the making-up air device, is filled by the tonifying Qi
It sets and the caisson is inflated；When the pressure in the caisson reaches the upper limit of caisson predetermined pressure range,
The air pressure controlling device closes the control valve being connected with the making-up air device；When the pressure in the caisson is more than
When the upper limit of caisson predetermined pressure range, the air pressure controlling device opens the control being connected with the making-up air device
Valve, so that the gas of the caisson flows into the making-up air device until the pressure in the caisson is located at gas storage dress
It sets in predetermined pressure range.
19. passing through the lithium flow battery system of compressed gas-driven described in any one of 2-15 according to claim 1, wherein
It is respectively equipped in the positive suspension device for storing liquid, the cathode suspension device for storing liquid and the electrolyte device for storing liquid
Liquid level sensor, when the positive suspension device for storing liquid, the cathode suspension device for storing liquid or electrolyte liquid storage dress
When liquid level in setting is higher than liquid level upper limit value or is lower than bottom level limit, the control device that is connected with the liquid level sensor
First solenoid directional control valve, second solenoid directional control valve and the third solenoid directional control valve and the compression will be closed
Machine.
20. passing through the lithium flow battery system of compressed gas-driven described in any one of 2-15 according to claim 1, wherein
General pipeline, gas inflow branch pipe, gas outflow general pipeline, the gas, which are flowed into, in the gas flows out branch pipe, the gas
Pressure sensor is equipped in body pipeline, the pressure sensor detects the gas and flows into general pipeline, the gas inflow branch pipe, institute
Gas outflow general pipeline, gas outflow branch pipe, the pressure in the gas piping are stated, when pressure is above or below predetermined gas
When loine pressure range, the control device being connected with the pressure sensor will close first solenoid directional control valve,
Two solenoid directional control valves and third solenoid directional control valve and compressor are simultaneously alarmed.
21. passing through the lithium flow battery system of compressed gas-driven described in any one of 2-15 according to claim 1, wherein
The battery module portion is equipped with gas buffer, and the gas buffer is connected to the gas and flows into general pipeline and described
Gas flows into branch pipe, and the gas buffer is to buffer and collect by the compressor compresses and via the gas stream
Enter the gas of general pipeline inflow and deliver gas to the gas to flow into branch pipe.
22. a kind of work of the lithium flow battery system by compressed gas-driven as described in any one of claim 12-21
Make method, which is characterized in that the working method includes the following steps:
The first step compresses the inert gas in the caisson by the compressor；
Second step, according to the positive reaction chamber, negative reaction chamber and separate cavities synchronize change liquid, successively change liquid or individually change liquid
Instruction, the control device simultaneously, sequentially or separately open first solenoid directional control valve, second solenoid directional control valve and institute
It states third solenoid directional control valve and controls the pressure and flow for flowing through the air-flow of each pneumatic control valve,
Wherein, compressed gas flows through that the gas flows into general pipeline and the gas flows into branch pipe, via described the of unlatching
One solenoid directional control valve enters the gas piping being connected with the described first positive suspension device for storing liquid and enters described first just
Pole suspension device for storing liquid will be positive by the positive suspension in the described in gas-powered first positive suspension device for storing liquid
Suspension is advanced in the positive reaction chamber for the reactor being connected with the described first positive suspension device for storing liquid and will
Positive suspension in the positive reaction chamber of the reactor is released to described second to be connected with the positive reaction chamber just
It is positive by described second into the positive suspension in the described second positive suspension device for storing liquid in the suspension device for storing liquid of pole
Gas propulsive in suspension device for storing liquid is into the gas piping being connected with the described second positive suspension device for storing liquid, gas
Body enters the caisson via first solenoid directional control valve, gas outflow branch pipe and gas outflow general pipeline
In, first solenoid directional control valve is closed after changing liquid；
Wherein, compressed gas flows through that the gas flows into general pipeline and the gas flows into branch pipe, via described the of unlatching
Two solenoid directional control valves are into the gas piping being connected with the first cathode suspension device for storing liquid and negative into described first
Pole suspension device for storing liquid, by the cathode suspension in the first cathode suspension device for storing liquid described in gas-powered, by cathode
Suspension is advanced in the negative reaction chamber for the reactor being connected with the first cathode suspension device for storing liquid and will
Cathode suspension in the negative reaction chamber of the reactor is released negative to described second to be connected with the negative reaction chamber
In the suspension device for storing liquid of pole, into the cathode suspension in the second cathode suspension device for storing liquid by second cathode
Gas propulsive in suspension device for storing liquid is into the gas piping being connected with the second cathode suspension device for storing liquid, gas
Body enters the caisson via second solenoid directional control valve, gas outflow branch pipe and gas outflow general pipeline
In, second solenoid directional control valve is closed after changing liquid；
Wherein, compressed gas flows through that the gas flows into general pipeline and the gas flows into branch pipe, via described the of unlatching
Three solenoid directional control valves enter the gas piping being connected with the first electrolyte device for storing liquid and enter first electrolyte
Electrolyte is advanced to and described by device for storing liquid by the electrolyte in the first electrolyte device for storing liquid described in gas-powered
In the separate cavities for the reactor that one electrolyte device for storing liquid is connected and by the electrolyte in the separate cavities of the reactor
It releases in the second electrolyte device for storing liquid being connected with the separate cavities, into the second electrolyte device for storing liquid
In electrolyte the gas propulsive in the second electrolyte device for storing liquid is connected to the second electrolyte device for storing liquid
In the gas piping connect, gas flows out general pipeline via the third solenoid directional control valve, gas outflow branch pipe and the gas
Into in the caisson, the third solenoid directional control valve is closed after changing liquid；
Third step, when the positive reaction chamber, the negative reaction chamber and the separate cavities change liquid whole after, close institute
State pneumatic control valve, first solenoid directional control valve, second solenoid directional control valve, the third solenoid directional control valve and described
Compressor.
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| CN201610340972.4A CN107403943B (en) | 2016-05-20 | 2016-05-20 | A kind of lithium flow battery system by compressed gas-driven |
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| CN201610340972.4A CN107403943B (en) | 2016-05-20 | 2016-05-20 | A kind of lithium flow battery system by compressed gas-driven |
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| CN115332593A (en) * | 2021-05-10 | 2022-11-11 | 国家能源投资集团有限责任公司 | Flow battery and electrolyte conveying method of flow battery |
Citations (3)
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|---|---|---|---|---|
| CN102315473A (en) * | 2011-06-28 | 2012-01-11 | 北京好风光储能技术有限公司 | Lithium ion flow redox battery |
| CN104064797A (en) * | 2014-06-14 | 2014-09-24 | 中国科学院电工研究所 | Lithium ion liquid flow battery system |
| CN104795583A (en) * | 2014-01-21 | 2015-07-22 | 北京好风光储能技术有限公司 | Novel lithium ion flow battery |
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2016
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315473A (en) * | 2011-06-28 | 2012-01-11 | 北京好风光储能技术有限公司 | Lithium ion flow redox battery |
| CN104795583A (en) * | 2014-01-21 | 2015-07-22 | 北京好风光储能技术有限公司 | Novel lithium ion flow battery |
| CN104064797A (en) * | 2014-06-14 | 2014-09-24 | 中国科学院电工研究所 | Lithium ion liquid flow battery system |
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