CN104466232A - Lithium-ion battery and preparation method of lithium metal alloy - Google Patents
Lithium-ion battery and preparation method of lithium metal alloy Download PDFInfo
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- CN104466232A CN104466232A CN201310440096.9A CN201310440096A CN104466232A CN 104466232 A CN104466232 A CN 104466232A CN 201310440096 A CN201310440096 A CN 201310440096A CN 104466232 A CN104466232 A CN 104466232A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/40—Alloys based on alkali metals
- H01M4/405—Alloys based on lithium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a lithium-ion battery, comprising a reactor, a micropore baffle plate, a positive electrode storage tank, a positive electrode reaction liquid, a positive electrode liquid pump, a negative electrode storage tank, a negative electrode reaction liquid and a negative electrode pump, wherein the reactor is a closed internal cavity, and the micropore baffle plate divides the reactor into a positive electrode chamber and a negative electrode chamber; the positive electrode storage tank, the positive electrode liquid pump and the positive electrode chamber are connected to form a positive electrode loop through a liquid pipeline, and the positive electrode reaction liquid flows in the positive electrode loop; the negative electrode storage tank, the negative electrode liquid pump and the negative electrode chamber are connected to form a negative electrode loop through a liquid pipeline, and the negative electrode reaction liquid flows in the negative electrode loop; the positive electrode reaction liquid and the negative electrode reaction liquid are used for involving in the reaction to generate energy, and the negative electrode reaction liquid comprises liquid lithium metal alloy. According to the lithium ion battery, a sodium-sulfur battery is prevented from heating a battery system, the safety is improved and the cost is reduced. The lithium-ion battery further has the characteristics of high liquid battery energy density, high power density, low cost and low pollution. Furthermore, the invention discloses a preparation method of lithium metal alloy.
Description
Technical field
The present invention relates to battery power field, particularly relate to the preparation method of a kind of lithium ion battery and lithium metal alloy.
Background technology
Conventional lithium ion battery is a kind of rechargeable battery moving work by lithium ion between positive and negative electrode, and its electrolyte does not flow and is sealed in cell inside.Although conventional lithium ion battery have high voltage, specific energy large, have extended cycle life, memoryless, pollute little, operating temperature range high, but the cost of high capacity lithium ion battery and safety in utilization are outstanding problems always, hinder its large-scale application as electrical network energy-storage system.
Existing sodium-sulphur battery is new device chemical energy being converted into electric energy, and be take sodium metal as negative pole, sulphur is positive pole, the double secondary cell doing electrolyte and barrier film of aluminium oxide ceramics.It is large that it has raw material reserves, energy and power density is large, efficiency for charge-discharge is close to 100%, by place of production restriction, feature easy to maintenance.But, sodium-sulphur battery must make sodium metal and sulphur become molten state could to work, thus also need add the heater of 300 DEG C ~ 350 DEG C in sodium-sulphur battery, not only complex structure under the high temperature of 300 DEG C ~ 350 DEG C, reliability and fail safe reduce, and also shorten the working life of sodium-sulphur battery.In addition, once the heater long period stops heating, the electrode substance in sodium-sulphur battery is converted to solid-state, and opening this sodium-sulphur battery, to make it rework more difficult.
Existing all-vanadium flow battery, by the variation of valence of the active vanadium ion in positive and negative electrode solution, realizes storage and the release of electric energy.Its active substance solution is divided in positive pole storage tank and negative pole storage tank, and under the promotion of liquid pump, solution flows through reactor by woven hose, and the electrode of proton exchange membrane both sides respectively oxidation and reduction reaction occurs.Therefore, the power output of all-vanadium flow battery and stored energy capacitance can independent design, and this is that flow battery significantly distinguishes the unique distinction with other chemical cells, is also that it is likely applied to the maximum technical advantage of extensive energy storage simultaneously.But the electrolyte of all-vanadium flow battery can produce dust, waste gas and waste water in the fabrication process, especially dealing with improperly containing the sulfuric acid waste of vanadium may polluted river water or underground water, and soil boy structure pollutes.In addition, other condemned MAT'Ls of vanadium cell, especially plastics or graphite composite conductive plate, be difficult to enter regeneration link by the mode of circular regeneration.
Summary of the invention
The invention provides a kind of lithium ion battery, the structure of described lithium ion battery is comparatively simple, fail safe is higher, reliability is higher and pollute little.
On the one hand, provide a kind of lithium ion battery, described lithium ion battery comprises reactor, microporosity separator, positive pole storage tank, positive pole reactant liquor, positive pole liquor pump, negative pole storage tank, negative reaction liquid, negative pole liquor pump; Described reactor is a closed inner chamber, and described microporosity separator is separated described reactor and become anode chamber and cathode chamber; Described positive pole storage tank, described positive pole liquor pump and described anode chamber connect and compose positive pole loop through woven hose, and described positive pole reactant liquor flows in described positive pole loop; Described negative pole storage tank, described negative pole liquor pump and described cathode chamber connect and compose negative loop through described woven hose, and described negative reaction liquid flows in described negative loop; Described positive pole reactant liquor and described negative reaction liquid produce electric energy for participating in reaction, and described negative reaction liquid comprises liquid lithium metal alloy.
In the implementation that the first is possible, described liquid lithium metal alloy comprises lithium metal, and at least one fusing point is lower than the metal of 30 DEG C.
In conjunction with the implementation that the first is possible, in the implementation that the second is possible, described fusing point comprises any one in mercury, rubidium, caesium and francium lower than the metal of 30 DEG C.
In conjunction with the implementation that the first is possible, in the implementation that the third is possible, described fusing point is 0.1% ~ 50% lower than the mass percentage of the metal of 30 DEG C.
In the 4th kind of possible implementation, the material of described positive pole reactant liquor comprises electrolyte and is dispersed in the positive electrode active materials in described electrolyte; Described positive electrode active materials comprises at least one in LiFePO4, lithium manganese phosphate, phosphoric acid vanadium lithium, ferric metasilicate lithium, cobalt acid lithium, nickel-cobalt-manganese ternary material, nickel manganese/cobalt manganese/nickel cobalt two raw material, LiMn2O4, rich lithium layer shape nickel ion doped; Described electrolyte is the solution that lithium salts is dissolved in organic solvent formation, and described lithium salts comprises lithium hexafluoro phosphate LiBF4, lithium perchlorate, two (trimethyl fluoride sulfonyl) imine lithium, dioxalic acid lithium borate, LiBFSi, LiPF
3(CF
2cF
3)
3, or LiCF
3sO
3in at least one, described organic solvent comprises at least one of dimethyl carbonate, diethyl carbonate, ethylene carbonate, propene carbonate.
In the 5th kind of possible implementation, the material of described positive pole reactant liquor comprises described electrolyte and is dispersed in the positive electrode active materials in described electrolyte; Described positive electrode active materials comprise in elemental sulfur, molybdenum bisuphide, silicon disulfide, lithium sulfide, ferrous disulfide, titanium disulfide and vanadic sulfide one or more, or organic disulfide, polymeric organodisulfide, poly organic polysulfide thing, one or more in carbon-sulfur polymer; Described electrolyte is glycol dimethyl ether and the DOX solution of bis trifluoromethyl sulfonic acid imide li.
In the 6th kind of possible implementation, stating microporosity separator is electrical insulating material, comprises microporous aluminum oxide ceramic material, mesoporous silica ceramic material, microporous alumina titanium ceramic material and microporous alumina zircon ceramic material any one.
On the other hand; provide the preparation method of lithium metal alloy; described lithium metal alloy is used in the lithium ion battery described in above-mentioned any one; the preparation method of described lithium metal alloy comprises: under inert gas shielding; by lithium metal and described low-melting-point metal heating and melting; wait to be uniformly dispersed and be cooled to room temperature, prepare the described lithium metal alloy of liquid.
In the implementation that the first is possible, described inert gas comprises any one in helium and argon gas, and heating and melting temperature is 180 DEG C ~ 300 DEG C, and the heating and melting time is 0.1 ~ 24h.
To sum up, lithium ion battery provided by the invention, have employed using liquid lithium metal alloy as negative reaction liquid, and positive electrode active materials is dispersed in electrolyte using as positive pole reactant liquor, and ceramic capillary dividing plate is as the structure of barrier film.It combines the advantage of sodium-sulphur battery, lithium metal alloy is liquid state at normal temperatures, avoid and battery system is heated, improve fail safe, reduce cost, the negative pole also having evaded conventional lithium ion flow battery adopts the inferior position of material with carbon element organic solvent suspension-turbid liquid, directly using the lithium metal alloy of high specific energy as negative reaction liquid, obviously improve energy density.Also combine the certain advantages of flow battery, positive pole reactant liquor and negative reaction liquid all flow, and react in reactor.Thus, lithium ion battery provided by the invention, except the feature high with all-vanadium flow battery energy density, power density is high and cost is low, also has and pollutes little feature.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in execution mode below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the lithium ion battery that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, it is the structural representation of the lithium ion battery that the embodiment of the present invention provides.Lithium ion battery comprises reactor 3, microporosity separator 9, positive pole storage tank 1, positive pole reactant liquor, positive pole liquor pump 4, negative pole storage tank 2, negative reaction liquid, negative pole liquor pump 12, plus plate current-collecting body 6 and negative current collector 8.Positive pole storage tank 1, positive pole liquor pump 4 and anode chamber 10 connect and compose positive pole loop through woven hose, and positive pole reactant liquor flows in positive pole loop.Negative pole storage tank 2, negative pole liquor pump 12 and cathode chamber 11 connect and compose negative loop through woven hose, and negative reaction liquid flows in negative loop.Positive pole reactant liquor and negative reaction liquid produce electric energy for participating in reaction.
Reactor 3 is a closed inner chamber, microporosity separator 9 separate reactors 3 one-tenth anode chamber 10 and cathode chamber 11 two parts.The anode chamber 10 that microporosity separator 9 only allows to separate, the ion flow between cathode chamber 11.In order to increase the closure of reactor 3, the lithium ion battery that the embodiment of the present invention provides also comprises an insulation shell 7, and insulation shell 7 is sheathed on outside reactor 3.
Positive pole storage tank 1, positive pole liquor pump 4 and anode chamber 10 connect and compose positive pole loop through woven hose 5, and positive pole reactant liquor flows in positive pole loop.Negative pole storage tank 2, negative pole liquor pump 12 and cathode chamber 11 connect and compose negative loop through woven hose 5, and negative reaction liquid flows in negative loop.Negative reaction liquid comprises liquid lithium metal alloy.
Liquid lithium metal alloy is lithium metal, and at least one fusing point is lower than the alloy formed after the metal melting of 30 DEG C.Fusing point comprises any one in mercury, rubidium, caesium and francium lower than the metal of 30 DEG C.Melting range is 0.1% ~ 50% lower than the mass percentage of the metal of 30 DEG C.
The material of positive pole reactant liquor comprises electrolyte and is dispersed in the positive electrode active materials in electrolyte.Positive electrode active materials comprises at least one in LiFePO4, lithium manganese phosphate, phosphoric acid vanadium lithium, ferric metasilicate lithium, cobalt acid lithium, nickel-cobalt-manganese ternary material, nickel manganese/cobalt manganese/nickel cobalt two raw material, LiMn2O4, rich lithium layer shape nickel ion doped.Electrolyte is the solution that lithium salts is dissolved in organic solvent formation, and lithium salts comprises lithium hexafluoro phosphate (LiPF
6), LiBF4 (LiBF
4), lithium perchlorate (LiClO
4), two (trimethyl fluoride sulfonyl) imine lithium (LiTFSi), dioxalic acid lithium borate (LiBOB), LiBFSi, LiPF
3(CF
2cF
3)
3, or LiCF
3sO
3in at least one.Organic solvent comprises at least one of dimethyl carbonate (DMC), diethyl carbonate (DEC), ethylene carbonate (EC) and propene carbonate (PC).
In addition, positive pole packing material can be also inorganic sulfur, preferably has, elemental sulfur, molybdenum bisuphide (MoS
2), silicon disulfide is (SiS
2), lithium sulfide (Li
2s), ferrous disulfide (FeS
2), titanium disulfide (TiS
2) and vanadic sulfide (V
2s
2) at least one.Positive pole packing material can also be organic sulfur, preferably has, at least one in organic disulfide, polymeric organodisulfide, poly organic polysulfide thing, carbon-sulfur polymer.Electrolyte is glycol dimethyl ether and the DOX solution of bis trifluoromethyl sulfonic acid imide li.
Microporosity separator 9 is electrical insulating material, comprises microporous aluminum oxide ceramic material, mesoporous silica ceramic material, microporous alumina titanium ceramic material and microporous alumina zircon ceramic material any one.
In order to illustrate material and the preparation method of negative reaction liquid and positive pole reactant liquor, the invention provides following two embodiments.
Embodiment one
The preparation method of negative reaction liquid: be in the input container of 6:1 according to mass ratio by lithium and rubidium (Rb), passes into high-purity argon gas as protection gas, prevents the oxygen in metal and air, nitrogen or contact with moisture, and airtight container.Container is heated, maintains the temperature 4 hours of 190 DEG C, after the lithium of internal tank and rubidium melt completely and evenly merge, lower the temperature for subsequent use.Lithium metal alloy now is in a liquid state at normal temperatures.
Under the protection of argon gas, lithium metal alloy negative pole is poured in negative pole storage tank 2, and seal immediately, need in process to ensure all have inert gas in negative pole storage tank 2 and woven hose 5, affect battery system safety with the side reaction avoiding liquid lithium metal alloy to occur.
The preparation method of positive pole reactant liquor: be dissolved in by lithium hexafluoro phosphate in organic solvent, wherein the component of organic solvent is the mixed liquor that the ratio being 1:1:1 by volume by ethylene carbonate (EC), methyl ethyl carbonate (EMC), diethyl carbonate (DEC) mixes.Thus be made into the electrolyte that hexafluorophosphoric acid lithium concentration is 1mol/L.
By positive electrode active materials cobalt acid lithium (LiCoO
3) powder puts in electrolyte, cobalt acid lithium powder is 2:3 with the mass ratio of electrolyte, and the sour lithium powder of cobalt is dispersed in this electrolyte, prepares this positive pole reactant liquor.
Positive pole reactant liquor is poured in positive pole storage tank 1, and seals.Open positive pole liquor pump 4 and negative pole liquor pump 12, so that positive pole reactant liquor and negative reaction liquid are entered reactor 3 through woven hose 5.Positive pole reactant liquor is filled in anode chamber 10, and negative reaction liquid is filled in cathode chamber 11, and the positive electrode active materials in positive pole reactant liquor and negative reaction liquid react on microporosity separator 9.
Be connected with external circuit with negative current collector 8 by plus plate current-collecting body 6, this lithium ion battery gets final product foreign work.
Embodiment two
Embodiment two is substantially identical with the preparation method of embodiment one; its difference is; the preparation method of negative reaction liquid is: drop in container by lithium, rubidium (Rb), caesium (Cs) according to mass ratio 8:1:1; pass into high-purity argon gas as protection gas; prevent the oxygen in metal and air, nitrogen or contact with moisture, and container is sealed.Container is heated, maintains the temperature 6 hours of 200 DEG C, after the lithium of internal tank, rubidium, caesium melt completely and evenly merge, lower the temperature for subsequent use.Lithium metal alloy now is in a liquid state at normal temperatures.
Under the protection of argon gas, lithium metal alloy negative pole is poured in negative pole storage tank 2, and seal immediately, need in process to ensure all have inert gas in negative pole storage tank 2 and woven hose 5, affect battery system safety with the side reaction avoiding liquid lithium metal alloy to occur.
The preparation method of positive pole reactant liquor: be dissolved in by lithium hexafluoro phosphate in organic solvent, wherein the component of organic solvent is ethylene carbonate (EC), methyl ethyl carbonate (EMC), diethyl carbonate (DEC) be mixed liquor that the ratio of 1:1:1 mixes by volume.Thus be made into the electrolyte that hexafluorophosphoric acid lithium concentration is 1mol/L.
Elemental sulfur and carbon dust are dropped in high energy ball mill with the ratio of 5:1; with the rotating speed ball milling 6 hours of 350 turns per minute, need in process to pass into argon gas atmosphere protection to prevent high-temperature oxydation, take out after cooling; and grind to form fine powdered, prepare the positive electrode active materials of carbon sulphur compound.Wherein, carbon dust, for connecting large molecular sulfur simple substance, promotes electric conductivity to form network.
Put in electrolyte by the positive electrode active materials of carbon sulphur compound, the mass ratio of positive electrode active materials and electrolyte is 1:4, and the positive electrode active materials of carbon sulphur compound is dispersed in electrolyte, prepares positive pole reactant liquor.
Subsequent step is identical with the step in embodiment one.
To sum up, lithium ion battery provided by the invention, have employed using liquid lithium metal alloy as negative reaction liquid, and positive electrode active materials is dispersed in electrolyte using as positive pole reactant liquor, and ceramic capillary dividing plate 9 is as the structure of barrier film.Its reaction mechanism and conventional lithium ion battery are without any difference.It combines the advantage of sodium-sulphur battery, lithium metal alloy is liquid state at normal temperatures, avoid and battery system is heated, improve fail safe, reduce cost, the negative pole also having evaded conventional lithium ion flow battery adopts the inferior position of material with carbon element organic solvent suspension-turbid liquid, directly using the lithium metal alloy of high specific energy as negative reaction liquid, obviously improve energy density.Also combine the certain advantages of flow battery, positive pole reactant liquor and negative reaction liquid all flow, and react in reactor 3, and the microporosity separator 9 of lithium ion battery is larger, and reaction contact-making surface is larger, and power density is higher.The volume of positive pole storage tank 1 and negative pole storage tank 2 is larger, and active material is more, and energy density is higher.Relative to traditional lithium-ion battery, the material changed in positive pole storage tank 1 and negative pole storage tank 2 is only needed to complete battery recycling, need not integral replacing, cost-saving.In addition, the existing all-vanadium flow battery of damage ratio of lithium ion battery that provides of the embodiment of the present invention is little.Thus, the lithium ion battery that the present embodiment provides, except the feature high with all-vanadium flow battery energy density, power density is high and cost is low, also has and pollutes little feature.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a lithium ion battery, is characterized in that, described lithium ion battery comprises reactor, microporosity separator, positive pole storage tank, positive pole reactant liquor, positive pole liquor pump, negative pole storage tank, negative reaction liquid, negative pole liquor pump; Described reactor is a closed inner chamber, and described microporosity separator is separated described reactor and become anode chamber and cathode chamber; Described positive pole storage tank, described positive pole liquor pump and described anode chamber connect and compose positive pole loop through woven hose, and described positive pole reactant liquor flows in described positive pole loop; Described negative pole storage tank, described negative pole liquor pump and described cathode chamber connect and compose negative loop through described woven hose, and described negative reaction liquid flows in described negative loop; Described positive pole reactant liquor and described negative reaction liquid produce electric energy for participating in reaction, and described negative reaction liquid comprises liquid lithium metal alloy.
2. lithium ion battery as claimed in claim 1, it is characterized in that, described liquid lithium metal alloy comprises lithium metal, and at least one fusing point is lower than the metal of 30 DEG C.
3. lithium ion battery as claimed in claim 2, is characterized in that, described fusing point comprises any one in mercury, rubidium, caesium and francium lower than the metal of 30 DEG C.
4. lithium ion battery as claimed in claim 2, it is characterized in that, described fusing point is 0.1% ~ 50% lower than the mass percentage of the metal of 30 DEG C.
5. lithium ion battery as claimed in claim 1, is characterized in that, the material of described positive pole reactant liquor comprises electrolyte and is dispersed in the positive electrode active materials in described electrolyte; Described positive electrode active materials comprises at least one in LiFePO4, lithium manganese phosphate, phosphoric acid vanadium lithium, ferric metasilicate lithium, cobalt acid lithium, nickel-cobalt-manganese ternary material, nickel manganese/cobalt manganese/nickel cobalt two raw material, LiMn2O4, rich lithium layer shape nickel ion doped; Described electrolyte is the solution that lithium salts is dissolved in organic solvent formation, and described lithium salts comprises lithium hexafluoro phosphate, LiBF4, lithium perchlorate, two (trimethyl fluoride sulfonyl) imine lithium, dioxalic acid lithium borate, LiBFSi, LiPF
3(CF
2cF
3)
3, or LiCF
3sO
3in at least one, described organic solvent comprises at least one of dimethyl carbonate, diethyl carbonate, ethylene carbonate, propene carbonate.
6. lithium ion battery as claimed in claim 1, is characterized in that, the material of described positive pole reactant liquor comprises described electrolyte and is dispersed in the positive electrode active materials in described electrolyte; Described positive electrode active materials comprises at least one in elemental sulfur, molybdenum bisuphide, silicon disulfide, lithium sulfide, ferrous disulfide, titanium disulfide and vanadic sulfide, or organic disulfide, polymeric organodisulfide, poly organic polysulfide thing, at least one in carbon-sulfur polymer; Described electrolyte is glycol dimethyl ether and the DOX solution of bis trifluoromethyl sulfonic acid imide li.
7. lithium ion battery as claimed in claim 1, it is characterized in that, described microporosity separator is electrical insulating material, comprises microporous aluminum oxide ceramic material, mesoporous silica ceramic material, microporous alumina titanium ceramic material and microporous alumina zircon ceramic material any one.
8. the preparation method of a lithium metal alloy; it is characterized in that; described lithium metal alloy is used in the lithium ion battery described in any one of claim 1 ~ 7; the preparation method of described lithium metal alloy comprises: under inert gas shielding; by lithium metal and described low-melting-point metal heating and melting; wait to be uniformly dispersed and be cooled to room temperature, prepare the described lithium metal alloy of liquid.
9. the preparation method of lithium metal alloy as claimed in claim 8, it is characterized in that, described inert gas comprises any one in helium and argon gas, and heating and melting temperature is 180 DEG C ~ 300 DEG C, and the heating and melting time is 0.1 ~ 24h.
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| CN201310440096.9A CN104466232A (en) | 2013-09-24 | 2013-09-24 | Lithium-ion battery and preparation method of lithium metal alloy |
| PCT/CN2014/075700 WO2015043167A1 (en) | 2013-09-24 | 2014-04-18 | Lithium-ion battery and method for manufacturing lithium metal alloy |
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| CN110120502A (en) * | 2018-02-05 | 2019-08-13 | 中国科学院物理研究所 | A kind of lithium metal alloy material of cathode and its preparation method and application |
| CN110729470A (en) * | 2019-10-22 | 2020-01-24 | 北京科技大学 | Positive electrode material of liquid or semi-liquid metal battery, preparation method and application |
| CN111001211A (en) * | 2019-12-20 | 2020-04-14 | 北京京能清洁能源电力股份有限公司北京分公司 | Chemical treatment equipment for crystalline silicon cell fragments |
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| CN110729470A (en) * | 2019-10-22 | 2020-01-24 | 北京科技大学 | Positive electrode material of liquid or semi-liquid metal battery, preparation method and application |
| CN110729470B (en) * | 2019-10-22 | 2021-06-01 | 北京科技大学 | Positive electrode material of liquid or semi-liquid metal battery, preparation method and application |
| CN111001211A (en) * | 2019-12-20 | 2020-04-14 | 北京京能清洁能源电力股份有限公司北京分公司 | Chemical treatment equipment for crystalline silicon cell fragments |
| CN116936876A (en) * | 2023-09-18 | 2023-10-24 | 艾博特瑞能源科技(苏州)有限公司 | Flow battery energy storage system and operation method thereof |
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