CN104993098A - Lithium supplement negative electrode piece, preparing method thereof, lithium-ion supercapacitor and lithium-ion battery - Google Patents
Lithium supplement negative electrode piece, preparing method thereof, lithium-ion supercapacitor and lithium-ion battery Download PDFInfo
- Publication number
- CN104993098A CN104993098A CN201510314986.4A CN201510314986A CN104993098A CN 104993098 A CN104993098 A CN 104993098A CN 201510314986 A CN201510314986 A CN 201510314986A CN 104993098 A CN104993098 A CN 104993098A
- Authority
- CN
- China
- Prior art keywords
- lithium
- powder
- cathode sheet
- binding agent
- lithium powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 271
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 268
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title abstract description 28
- 239000013589 supplement Substances 0.000 title abstract 6
- 239000000843 powder Substances 0.000 claims abstract description 134
- 239000011230 binding agent Substances 0.000 claims abstract description 58
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 230000008901 benefit Effects 0.000 claims description 59
- 239000000463 material Substances 0.000 claims description 40
- 239000003990 capacitor Substances 0.000 claims description 33
- 239000006258 conductive agent Substances 0.000 claims description 31
- 238000002360 preparation method Methods 0.000 claims description 30
- 229910002114 biscuit porcelain Inorganic materials 0.000 claims description 22
- 239000011268 mixed slurry Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 8
- 239000002322 conducting polymer Substances 0.000 claims description 3
- 229920001940 conductive polymer Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004146 energy storage Methods 0.000 abstract description 2
- 239000011247 coating layer Substances 0.000 abstract 2
- 239000010410 layer Substances 0.000 abstract 2
- 239000007773 negative electrode material Substances 0.000 abstract 2
- 230000004888 barrier function Effects 0.000 description 19
- 239000003792 electrolyte Substances 0.000 description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- 239000002033 PVDF binder Substances 0.000 description 12
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 12
- 239000002002 slurry Substances 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 229920000767 polyaniline Polymers 0.000 description 11
- 239000011889 copper foil Substances 0.000 description 10
- 238000003756 stirring Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000001035 drying Methods 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 6
- 239000002041 carbon nanotube Substances 0.000 description 5
- 229910021393 carbon nanotube Inorganic materials 0.000 description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- 239000011258 core-shell material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 3
- 125000001979 organolithium group Chemical group 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 206010013786 Dry skin Diseases 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910021385 hard carbon Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910013872 LiPF Inorganic materials 0.000 description 1
- 101150058243 Lipf gene Proteins 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- YZSKZXUDGLALTQ-UHFFFAOYSA-N [Li][C] Chemical compound [Li][C] YZSKZXUDGLALTQ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010220 ion permeability Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/50—Electrodes characterised by their material specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation
-
- 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
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention relates to a lithium supplement negative electrode piece, a preparing method thereof, a lithium-ion supercapacitor and a lithium-ion battery and belongs to the technical field of energy storage devices. The lithium supplement negative electrode piece comprises a negative electrode piece. The negative electrode piece is formed by a negative electrode current collector and a negative electrode material coating layer arranged on the surface of the negative electrode current collector in a coating mode. A lithium powder layer coats the surface of the negative electrode material coating layer. The lithium powder layer comprises lithium powder and a binding agent which are evenly mixed and distributed. The weight ratio of the lithium powder and the binding agent is 60-98 : 2-4. The lithium powder of the lithium supplement negative electrode piece cannot fall off easily, the using efficiency of the lithium powder is improved, and lithium supplement amount and lithium supplement effect are guaranteed.
Description
Technical field
The present invention relates to a kind of benefit lithium cathode sheet and preparation method thereof, lithium ion super capacitor, lithium ion battery, belong to energy storage device technical field.
Background technology
Irreversible embedding lithium is to a certain degree there is in the negative pole of lithium rechargeable battery and lithium ion super capacitor in first charge-discharge process, cause the capacitance loss of lithium ion battery and lithium ion super capacitor, in addition, irreversible embedding lithium also can cause the anion Irreversible Adsorption of pole piece, causes the decay of the reduction of electrolyte ion concentration and battery, condenser capacity.The mode of the pre-embedding lithium of negative pole is adopted to solve the problem well.
The people such as the Osamu Hatozaki of Fuji Heavy report a kind of lithium ultracapacitor in the 16 International Electrochemical capacitor seminar in 2006, the negative pole of this lithium ultracapacitor is with the embedding lithium Carbon Materials through metal lithium sheet process, positive pole is active carbon, its operating voltage reaches 3.8V, specific energy reaches 12-30Wh/kg, and specific power is up to 6kW/kg.But the electrode manufacturing process of this method is very complicated, and assembling environmental requirement is very harsh, metal lithium sheet is introduced in electric capacity system as electrode and is easily brought safety problem.
Samsung Electro-Mechanics Co., Ltd is the Chinese invention patent (announcement on July 4th, 2012 of 201110321951.5 at application number, application publication number: CN102543460A) in disclose a kind of lithium-ion capacitor, its negative pole comprises the material with carbon element that pre-doping has lithium ion, pre-doping mode be by metallic lithium foil and negative plate staggered relatively, therebetween use polypropylene non-woven fabric as barrier film, continue to make doped lithium ion in negative pole in 2 hours.This method is by using lithium paper tinsel to doped lithium ion in negative pole, owing to it using metallic lithium foil, and use barrier film negative pole and lithium paper tinsel to be separated, lithium ion is lower to the doping osmotic efficiency in negative pole, osmotic effect is poor, to reach the time of penetration that higher lithium ion permeability needs to grow very much.And use metallic lithium foil, can bring safety problem equally, the introducing of lithium paper tinsel also add the use amount of electrolyte and barrier film, adds production cost.
In order to solve the problem, general adopt lithium powder to be layered on mode that embedding lithium is carried out on negative plate surface in prior art, namely directly to be shaken lithium powder by screen cloth or uniform spreading is spread on negative plate surface under the electric field.The method operation relative ease, advantage of lower cost, also reduces security risk.But, easily there is the situation that lithium powder descends slowly and lightly in spreading process, easily bring potential safety hazard in the dry lithium powder that this method generally uses.
In order to avoid lithium powder descend slowly and lightly exist potential safety hazard, there is a kind of employing in prior art a kind ofly lithium metal and base material of cathode are made slurries to apply the method making embedding lithium cathode sheet on a current collector, this method can avoid lithium powder in lithium up process to descend slowly and lightly the generation of situation, improves fail safe.But the embedding lithium cathode sheet that this method obtains, lithium powder is distributed in the middle of negative material, after lithium powder is partly dissolved, easily causes lithium powder to form isolated state, with negative electricity insulating sublayer, causes the utilization ratio of lithium powder low.And because negative material is generally thinner graphite composite powder material, be difficult to realize Homogeneous phase mixing with lithium powder, lithium powder easily swims in the upper strata of slurries, after coating, easily cause the skewness of lithium powder in composite material.
Application number is the Chinese invention patent (announcement on February 6th, 2013 of 201210350770.X, application publication number: CN102916164A) disclose a kind of method of mending lithium to based lithium-ion battery positive plate, adopt organolithium spray solution on positive plate surface, make the lithium ion in organolithium solution be reduced into lithium metal and embed in positive plate, after drying, obtaining the positive plate of embedding lithium.The method uses wet method to mend lithium, makes lithium powder be distributed in negative plate surface, avoids lithium powder situation pockety in negative plate.But, the lithium powder that the method is obtained after the reduction on positive plate surface by organolithium solution carries out benefit lithium, and the lithium powder obtained that reduces is attached to positive plate surface, is very easy to come off, in following process process, also easily there is the phenomenon of dry linting, cannot ensure mend lithium amount and mend lithium effect.
Summary of the invention
The object of the present invention is to provide a kind of benefit lithium cathode sheet, occur that lithium powder utilization ratio is low, lithium powder easily descends slowly and lightly, the problem of dry linting to solve in the embedding lithium of negative plate in prior art process.There is provided a kind of in addition mend the preparation method of lithium cathode sheet and use lithium ion super capacitor and the lithium ion battery of this benefit lithium cathode sheet.
In order to realize above object, the technical scheme of benefit lithium cathode sheet of the present invention is as follows:
A kind of benefit lithium cathode sheet, comprise negative plate, described negative plate is made up of negative current collector and the negative material coating that is coated in negative pole currect collecting surface, described negative material coating surface is coated with lithium bisque, described lithium bisque comprises lithium powder and the binding agent of Homogeneous phase mixing distribution, and the weight ratio of described lithium powder and binding agent is 60-98:2-4.
The present invention is the negative material coating surface on negative plate by lithium powder and adhesive coated, improves the adhesion of lithium powder and negative material coating, makes lithium powder be not easy to come off, improve the utilization ratio of lithium powder.By at negative plate surface-coated lithium bisque, in the embedding lithium process of the dissolving of lithium powder, between lithium powder particles, can not space be formed, improve the efficiency that lithium powder dissolves diffusion, also improve the service efficiency of lithium powder, ensure that and mend lithium amount and mend lithium effect.After embedding lithium, lithium powder dissolves, and the original position of lithium powder defines the porous layer of porosity superelevation, does not affect the conduction of lithium ion between negative pole, barrier film, positive pole.
The technical scheme of the preparation method of benefit lithium cathode sheet of the present invention is as follows:
Mend the preparation method of lithium cathode sheet, comprise the steps:
1) a. gets negative plate, and described negative plate is made up of negative current collector and the negative material coating that is coated in negative pole currect collecting surface;
B. lithium powder, binding agent are added in solvent, dispersed, obtain lithium powder mixed slurry;
2) by step 1) the lithium powder mixed slurry that obtains is coated on negative material coating surface on described negative plate, and dry, roll-in, obtains benefit lithium cathode sheet.
The preparation method of benefit lithium cathode sheet of the present invention, technological operation is simple, it also avoid the lithium powder phenomenon that descends slowly and lightly in operation.
Described step b also can adopt following steps to substitute: added by binding agent in solvent, obtains binding agent mixed liquor, added by lithium powder in described binding agent mixed liquor after dispersed, dispersed, obtains lithium powder mixed slurry.Binding agent is mixed in advance with solvent, makes glue, then lithium powder is distributed in glue, be convenient to the viscosity controlling slurry, improve the lithium powder degree that is uniformly dispersed in the slurry.Described solvent is organic solvent, is preferably NMP.
The technical scheme of lithium ion super capacitor of the present invention is as follows:
A kind of lithium ion super capacitor, negative pole uses mends lithium cathode sheet, described benefit lithium cathode sheet comprises negative plate, described negative plate is made up of negative current collector and the negative material coating that is coated in negative pole currect collecting surface, described negative material coating surface is coated with lithium bisque, described lithium bisque comprises lithium powder and the binding agent of Homogeneous phase mixing distribution, and the weight ratio of described lithium powder and binding agent is 60-98:2-4.The weight ratio of lithium powder and binding agent can more preferably lithium powder: binding agent=85-95:2-4.
The technical scheme of lithium ion battery of the present invention is as follows:
A kind of lithium ion battery, negative pole uses mends lithium cathode sheet, described benefit lithium cathode sheet comprises negative plate, described negative plate is made up of negative current collector and the negative material coating that is coated in negative pole currect collecting surface, described negative material coating surface is coated with lithium bisque, described lithium bisque comprises lithium powder and the binding agent of Homogeneous phase mixing distribution, and the weight ratio of described lithium powder and binding agent is 60-98:2-4.The weight ratio of lithium powder and binding agent can more preferably lithium powder: binding agent=85-95:2-4.
In benefit lithium cathode sheet of the present invention and preparation method thereof and lithium ion super capacitor, lithium ion battery, the negative plate that described negative plate can be prepared for adopting prior art and obtain after roll-in, without the need to changing the preparation technology of original negative plate, negative plate herein also can adopt the negative plate purchasing the roll-in processed obtained certainly.
Lithium effect is mended in order to improve, above-mentioned negative plate can adopt negative current collector to apply negative plate without roll-in gained after negative material, use the negative material on the negative plate of non-roll-in gained relatively loose after the drying, easier and lithium powder be combined with each other, permeates, and substantially increases and mends lithium effect.
In order to improve the electronic conduction between lithium powder and negative material, described in benefit lithium cathode sheet of the present invention and preparation method thereof and lithium ion super capacitor, lithium bisque comprises conductive agent.Conductive agent add the conductivity that can improve between lithium powder and negative material, improve further the dissolved efficiency of lithium powder, improve the service efficiency of lithium powder.The weight ratio of described lithium powder, conductive agent, binding agent is lithium powder: conductive agent: binding agent=60-98:2-38:2-4.More preferably lithium powder: conductive agent: binding agent=85-95:2-25:2-4.Described conductive agent is inorganic conductive agent or conducting polymer.Described inorganic conductive agent is be selected from one or more in conductive black, carbon nano-tube, Graphene, copper powder.Described conducting polymer is be selected from one or more in polyaniline, polythiophene, polypyrrole, polyacetylene, polyhenylene.
With the addition of the benefit lithium cathode sheet of conductive agent, step b described in its preparation method can adopt following steps to substitute: lithium powder and conductive agent Homogeneous phase mixing are obtained lithium powder mixture, lithium powder mixture, binding agent are added in solvent, dispersed, obtain lithium powder mixed slurry.First by lithium powder and conductive agent Homogeneous phase mixing, the degree that is uniformly dispersed in slurry between lithium powder and conductive agent can be improved, avoid lithium powder floating in the slurry, final improve lithium powder in the lithium bisque of negative material coating surface, being uniformly distributed of conductive agent.
In benefit lithium cathode sheet of the present invention and preparation method thereof and lithium ion super capacitor, the granularity of described lithium powder is 5-20 micron.The granularity of described conductive agent is 0.1-5 micron.The thickness of described lithium bisque is 20-25 micron.
Different operating environments is adapted in order to make the processing of embedding lithium cathode sheet, lithium powder in benefit lithium cathode sheet of the present invention and preparation method thereof and lithium ion super capacitor can select stabilized lithium powder, can carry out processed safely operation to make embedding lithium cathode sheet in moisture and the higher environment of oxygen content.
Benefit lithium cathode sheet of the present invention and preparation method thereof and the binding agent described in lithium ion super capacitor are that binding agent is commonly used, as one or more in PVDF, PTFE in this area.
Negative active core-shell material in benefit lithium cathode sheet of the present invention and preparation method thereof and the negative material coating described in lithium ion super capacitor is selected from the conventional negative active core-shell material in this area, such as, in graphite, hard carbon, soft carbon one or more.
Benefit lithium cathode sheet of the present invention adopts the method for coating lithium powder to be coated in the negative material surface of negative plate, avoid that the lithium powder utilization ratio occurred in the embedding lithium of negative plate in prior art process is low, lithium powder easily descends slowly and lightly, the problem of dry linting, substantially increase the utilance of lithium powder.
Embodiment
Technical scheme of the present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
The benefit lithium cathode sheet of the present embodiment comprises negative plate, described negative plate is made up of negative current collector Copper Foil and the negative material coating that is coated in negative pole currect collecting surface, described negative material comprises negative active core-shell material graphite, this negative plate adopts technique of the prior art negative material to be coated in two surfaces of Copper Foil, without roll-in after drying.The negative material coating surface on described Copper Foil two sides is coated with lithium bisque, the thickness of lithium bisque is 23 microns, described lithium bisque is made up of stabilized lithium powder, conductive black and binding agent PVDF, the weight ratio of stabilized lithium powder, conductive black, binding agent PVDF is stabilized lithium powder: conductive black: binding agent PVDF=91:5:4, the granularity of stabilized lithium powder is 5 microns, and the granularity of conductive black is 1 micron.
The preparation method of above-mentioned benefit lithium cathode sheet, comprises the steps:
1) a. gets negative plate, described negative plate is made up of negative current collector Copper Foil and the negative material coating that is coated in negative pole currect collecting surface, adopt technique of the prior art negative material to be coated in two surfaces of Copper Foil, after drying, namely obtain described negative plate without roll-in;
B. stabilized lithium powder and conductive agent conductive black Homogeneous phase mixing are obtained lithium powder mixture, ball mill specifically can be adopted to be mixed with conductive black by stabilized lithium powder, in planetary stirring machine, binding agent PVDF is added in organic solvent NMP, binding agent mixed liquor is obtained after dispersed, being added at twice by lithium powder mixture in binding agent mixed liquor, stir, is 3500cP by adding NMP adjustment slurry viscosity, dispersed, obtain lithium powder mixed slurry;
2) by step 1) the lithium powder mixed slurry that obtains is coated on step 1 by one side coating machine) described in a surface of negative plate, adopt identical method to carry out the coating of another side, 85 DEG C of dryings, roll-in, obtains benefit lithium cathode sheet.
The lithium ion super capacitor of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion super capacitor.
The lithium ion battery of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion battery.
Embodiment 2
The benefit lithium cathode sheet of the present embodiment comprises negative plate, described negative plate is made up of negative current collector Copper Foil and the negative material coating that is coated in negative pole currect collecting surface, described negative material comprises negative active core-shell material hard carbon, this negative plate adopts technique of the prior art negative material to be coated in two surfaces of Copper Foil, roll-in after dry.Negative material coating surface on described Copper Foil two surfaces is coated with lithium bisque, the thickness of lithium bisque is 20 microns, described lithium bisque is made up of stabilized lithium powder, polyaniline and binding agent PTFE, the weight ratio of stabilized lithium powder, polyaniline, binding agent PTFE is stabilized lithium powder: polyaniline: binding agent PTFE=90:7:3, the granularity of stabilized lithium powder is 15 microns, and the granularity of polyaniline is 5 microns.
The preparation method of above-mentioned benefit lithium cathode sheet, comprises the steps:
1) a. gets negative plate, described negative plate is made up of negative current collector Copper Foil and the negative material coating that is coated in negative pole currect collecting surface, adopt technique of the prior art negative material to be coated in two surfaces of Copper Foil, after dry, namely roll-in obtains described negative plate;
B. stabilized lithium powder and conductive agent polyaniline Homogeneous phase mixing are obtained lithium powder mixture, high speed shear dispersed ultrafine machine specifically can be adopted to be mixed with polyaniline by stabilized lithium powder, in double-planet dispersion machine, binding agent PTFE is added in organic solvent NMP, binding agent mixed liquor is obtained after dispersed, being divided by lithium powder mixture and add for four times in binding agent mixed liquor, stir, is 4000cP by adding NMP adjustment slurry viscosity, dispersed, obtain lithium powder mixed slurry;
2) by step 1) the lithium powder mixed slurry that obtains is coated on step 1 by dual coating machine) described in two surfaces of negative plate, 95 DEG C of dryings, roll-in, obtains benefit lithium cathode sheet.
The lithium ion super capacitor of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion super capacitor.
The lithium ion battery of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion super capacitor.
The lithium ion battery of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion battery.
Embodiment 3
The benefit lithium cathode sheet of the present embodiment is identical with the benefit lithium cathode sheet in embodiment 1.
The difference of the preparation method of the benefit lithium cathode sheet in the preparation method of the benefit lithium cathode sheet of the present embodiment and embodiment 1 is only the step b in embodiment 1 to replace with:
B. in planetary stirring machine, binding agent PVDF is added in organic solvent NMP, obtain binding agent mixed liquor after dispersed, stabilized lithium powder, conductive black are added in binding agent mixed liquor, stir, by add NMP adjust slurry viscosity be 3500cP, dispersed, obtain lithium powder mixed slurry;
The lithium ion super capacitor of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion super capacitor.
The lithium ion battery of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion battery.
Embodiment 4
The benefit lithium cathode sheet of the present embodiment is identical with the benefit lithium cathode sheet in embodiment 1.
The difference of the preparation method of the benefit lithium cathode sheet in the preparation method of the benefit lithium cathode sheet of the present embodiment and embodiment 1 is only the step b in embodiment 1 to replace with:
B. stabilized lithium powder and conductive agent conductive black Homogeneous phase mixing are obtained lithium powder mixture, ball mill specifically can be adopted to be mixed with conductive black by lithium powder, organic solvent NMP is added at planetary stirring machine, lithium powder mixture, binding agent PVDF are added in NMP, stir, by add NMP adjust slurry viscosity be 3500cP, dispersed, obtain lithium powder mixed slurry;
The lithium ion super capacitor of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion super capacitor.
The lithium ion battery of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion battery.
Embodiment 5
The benefit lithium cathode sheet of the present embodiment is identical with the benefit lithium cathode sheet in embodiment 1.
The difference of the preparation method of the benefit lithium cathode sheet in the preparation method of the benefit lithium cathode sheet of the present embodiment and embodiment 1 is only the step b in embodiment 1 to replace with:
B. adding in NMP by stabilized lithium powder, conductive black, binding agent PVDF in planetary stirring machine, stir, is 3500cP by adding NMP adjustment slurry viscosity, dispersed, obtains lithium powder mixed slurry;
The lithium ion super capacitor of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion super capacitor.
The lithium ion battery of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion battery.
Embodiment 6
The difference of the benefit lithium cathode sheet in the benefit lithium cathode sheet of the present embodiment and embodiment 1 is only: described lithium bisque is made up of stabilized lithium powder and binding agent PVDF, and the weight ratio of stabilized lithium powder, binding agent PVDF is stabilized lithium powder: binding agent PVDF=96:4.
The difference of the preparation method of the benefit lithium cathode sheet in the preparation method of the benefit lithium cathode sheet of the present embodiment and embodiment 1 is only the step b in embodiment 1 to replace with:
B. in planetary stirring machine, binding agent PVDF is added in organic solvent NMP, obtaining binding agent mixed liquor after dispersed, added at twice by stabilized lithium powder in binding agent mixed liquor, is 3500cP by adding NMP adjustment slurry viscosity, dispersed, obtain lithium powder mixed slurry;
The lithium ion super capacitor of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion super capacitor.
The lithium ion battery of the present embodiment, adopts above-mentioned benefit lithium cathode sheet, uses positive plate of the prior art, barrier film, electrolyte to carry out assembling and obtaining lithium ion battery.
The composition of the benefit lithium cathode sheet of embodiment 7-18, preparation method are in table 1, and the content do not addressed is all identical with embodiment 1.
Benefit lithium cathode sheet of table 1 embodiment 7-18 and preparation method thereof
Experimental example
1) obtained lithium ion super capacitor is carried out performance test according to following work system:
Negative pole after mending lithium is combined into plenary capacitance with active carbon positive pole, and barrier film uses 30 microns of nonwoven fabrics barrier films.Electrolyte is injected, electrolyte composition PC:EC:DC=3:1:4, electrolyte LiPF after drying
6concentration 1.0mol/L.Change into after leaving standstill 24h after fluid injection.
Chemical synthesis technology: 0.3C constant current charge, to 3.8V, transfers constant voltage charge to, keeps 24h.
Volume test: 1C electric current, voltage range 2.2-3.8V.
Loop test: 50C current charge-discharge, voltage range 2.2-3.8V.
According to above-mentioned work system, the chemical property obtained is tested to the lithium ion super capacitor prepared in embodiment 1-18 as shown in table 2.
The chemical property of the lithium ion super capacitor that table 2 embodiment 1-18 obtains
2) test of lithium powder service efficiency
Binding agent ratio is fixed as 4%, and negative material surface density is 100g/m
2, lithium bisque surface density is 20g/m
2, by measuring negative pole to lithium current potential, contrast with capacity of negative plates test curve, draw the embedding lithium capacity of negative pole, calculate lithium powder service efficiency, concrete numerical value is in table 3.
The lithium powder service efficiency of lithium ion super capacitor negative plate in table 3 embodiment 1-15
| Embodiment | Conductive agent type | Conductive agent content/% | Lithium powder content/% | Lithium powder service efficiency/% |
| Embodiment 1 | Conductive black | 5 | 91 | 85 |
| Embodiment 2 | Polyaniline | 7 | 90 | 80 |
| Embodiment 3 | Conductive black | 5 | 91 | 84 |
| Embodiment 4 | Conductive black | 5 | 91 | 85 |
| Embodiment 5 | Conductive black | 5 | 91 | 83 |
| Embodiment 6 | Nothing | 0 | 96 | 30 |
| Embodiment 7 | Conductive black | 2 | 94 | 45 |
| Embodiment 8 | Conductive black | 6 | 90 | 67 |
| Embodiment 9 | Conductive black | 11 | 85 | 90 |
| Embodiment 10 | Carbon nano-tube | 2 | 94 | 47 |
| Embodiment 11 | Carbon nano-tube | 6 | 90 | 70 |
| Embodiment 12 | Carbon nano-tube | 11 | 85 | 95 |
| Embodiment 13 | Polyaniline | 2 | 94 | 40 |
| Embodiment 14 | Polyaniline | 6 | 90 | 58 |
| Embodiment 15 | Polyaniline | 11 | 85 | 68 |
As can be seen from Table 3, owing to the addition of conductive agent, compared with making the service efficiency of lithium powder and not adding the technical scheme of conductive agent, had lifting by a relatively large margin, and along with the increase of conductive agent content, lithium powder service efficiency promotes more obvious.During identical conduction agent content, carbon nano-tube is to the best results improving lithium powder service efficiency.
Claims (10)
1. mend lithium cathode sheet for one kind, it is characterized in that, comprise negative plate, described negative plate is made up of negative current collector and the negative material coating that is coated in negative pole currect collecting surface, described negative material coating surface is coated with lithium bisque, described lithium bisque comprises lithium powder and binding agent, and the weight ratio of described lithium powder and binding agent is 60-98:2-4.
2. mend lithium cathode sheet as claimed in claim 1, it is characterized in that, described negative plate is the negative plate without roll-in gained after negative current collector coating negative material.
3. the benefit lithium cathode sheet as described in any one of claim 1-2, is characterized in that, described lithium bisque comprises conductive agent, and the weight ratio of described lithium powder, conductive agent, binding agent is lithium powder: conductive agent: binding agent=60-98:2-38:2-4.
4. mend lithium cathode sheet as claimed in claim 3, it is characterized in that, described conductive agent is inorganic conductive agent or conducting polymer.
5. the preparation method mending lithium cathode sheet as claimed in claim 1, is characterized in that, comprise the steps:
1) a. gets negative plate, and described negative plate is made up of negative current collector and the negative material coating that is coated in negative pole currect collecting surface;
B. lithium powder, binding agent are added in solvent, dispersed, obtain lithium powder mixed slurry;
2) by step 1) the lithium powder mixed slurry that obtains is coated on negative material coating surface on described negative plate, and dry, roll-in, obtains benefit lithium cathode sheet.
6. the preparation method mending lithium cathode sheet as claimed in claim 5, is characterized in that, described step b adopts following steps to substitute: added by binding agent in solvent, binding agent mixed liquor is obtained after dispersed, lithium powder is added in described binding agent mixed liquor, dispersed, obtain lithium powder mixed slurry.
7. the preparation method mending lithium cathode sheet as claimed in claim 5, it is characterized in that, described lithium bisque comprises conductive agent, and the weight ratio of described lithium powder, conductive agent, binding agent is lithium powder: conductive agent: binding agent=60-98:2-38:2-4.
8. the preparation method mending lithium cathode sheet as claimed in claim 7, it is characterized in that, described step b adopts following steps to substitute: lithium powder and conductive agent Homogeneous phase mixing are obtained lithium powder mixture, adds in solvent by lithium powder mixture, binding agent, dispersed, obtain lithium powder mixed slurry.
9. a lithium ion super capacitor, is characterized in that, uses and mends lithium cathode sheet as claimed in claim 1.
10. a lithium ion battery, is characterized in that, uses and mends lithium cathode sheet as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314986.4A CN104993098A (en) | 2015-06-10 | 2015-06-10 | Lithium supplement negative electrode piece, preparing method thereof, lithium-ion supercapacitor and lithium-ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314986.4A CN104993098A (en) | 2015-06-10 | 2015-06-10 | Lithium supplement negative electrode piece, preparing method thereof, lithium-ion supercapacitor and lithium-ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104993098A true CN104993098A (en) | 2015-10-21 |
Family
ID=54304878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510314986.4A Pending CN104993098A (en) | 2015-06-10 | 2015-06-10 | Lithium supplement negative electrode piece, preparing method thereof, lithium-ion supercapacitor and lithium-ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104993098A (en) |
Cited By (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977450A (en) * | 2016-06-23 | 2016-09-28 | 盈天科技（深圳）有限公司 | Method for plating lithium on anode plate of lithium ion battery |
| CN106450229A (en) * | 2016-11-22 | 2017-02-22 | 深圳市鑫永丰科技有限公司 | Lithium metal powder coated by conductive polymer and preparation method and device of lithium metal powder |
| CN106450481A (en) * | 2016-12-07 | 2017-02-22 | 清华大学深圳研究生院 | Lithium ion battery and preparation method thereof |
| CN106654160A (en) * | 2017-01-24 | 2017-05-10 | 武汉理工力强能源有限公司 | Electrode plate activation method for negative electrode based on passivation metal lithium powder |
| CN106848270A (en) * | 2015-12-07 | 2017-06-13 | 微宏动力系统（湖州）有限公司 | Negative pole mends lithium slurry, negative pole and lithium secondary battery |
| CN106848209A (en) * | 2015-12-07 | 2017-06-13 | 微宏动力系统（湖州）有限公司 | Electrode of lithium secondary cell slurry, electrode and lithium secondary battery |
| CN108878775A (en) * | 2018-06-29 | 2018-11-23 | 桑顿新能源科技有限公司 | It is a kind of to mend lithium composite negative pole pole piece and preparation method thereof safely |
| CN109309194A (en) * | 2017-07-26 | 2019-02-05 | 中能中科（天津）新能源科技有限公司 | It is modified without cathode of lithium, preparation method and contains its lithium ion battery |
| CN109713227A (en) * | 2018-12-27 | 2019-05-03 | 陕西煤业化工技术研究院有限责任公司 | A kind of lithium ion battery prelithiation method |
| CN109755502A (en) * | 2018-12-10 | 2019-05-14 | 龙能科技(宁夏)有限责任公司 | A kind of silicon-carbon cathode mends the preparation method of pole piece |
| CN109786662A (en) * | 2019-01-18 | 2019-05-21 | 湖北锂诺新能源科技有限公司 | A kind of negative electrode of lithium ion battery mends pole piece and preparation method thereof |
| CN109802140A (en) * | 2018-12-21 | 2019-05-24 | 上海力信能源科技有限责任公司 | A kind of lithium battery cathode pole piece and preparation method thereof |
| CN110085804A (en) * | 2019-05-16 | 2019-08-02 | 珠海冠宇电池有限公司 | A kind of Ultralight composite negative pole and the lithium ion battery containing the cathode |
| CN110165285A (en) * | 2019-05-20 | 2019-08-23 | 湖北锂诺新能源科技有限公司 | Mutually embedded button cell of positive/negative plate and preparation method thereof |
| CN110268557A (en) * | 2017-08-11 | 2019-09-20 | 株式会社Lg化学 | Use the prelithiation of lithium metal and inorganic composite layers |
| CN110400985A (en) * | 2019-07-31 | 2019-11-01 | 清陶（昆山）能源发展有限公司 | A kind of negative electrode of lithium ion battery mends lithium composite membrane and its preparation method and application |
| CN110556511A (en) * | 2019-09-03 | 2019-12-10 | 珠海格力电器股份有限公司 | Lithium battery negative pole piece with excellent cycle performance, preparation method thereof and lithium ion battery |
| CN111029569A (en) * | 2019-11-11 | 2020-04-17 | 天津大学 | Lithium ion battery lithium supplement additive, battery electrode and preparation method and application thereof |
| CN111081982A (en) * | 2019-12-25 | 2020-04-28 | 松山湖材料实验室 | Lithium ion battery lithium supplementing method |
| CN111244555A (en) * | 2019-10-10 | 2020-06-05 | 江苏正力新能电池技术有限公司 | High-proportion silicon negative electrode solid-phase lithium supplement process |
| CN111584853A (en) * | 2020-05-29 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Pre-lithiated negative electrode material and preparation method and application thereof |
| CN111725487A (en) * | 2020-06-30 | 2020-09-29 | 昆山宝创新能源科技有限公司 | Lithium-supplementing negative plate and preparation method and application thereof |
| CN112038582A (en) * | 2020-10-10 | 2020-12-04 | 合肥国轩高科动力能源有限公司 | Lithium supplementing device and lithium supplementing method |
| CN112072077A (en) * | 2020-09-11 | 2020-12-11 | 昆山宝创新能源科技有限公司 | Pre-lithiated negative plate and preparation method and application thereof |
| CN112067672A (en) * | 2020-09-11 | 2020-12-11 | 昆山宝创新能源科技有限公司 | Method for testing specific capacity of pre-lithiated lithium powder and application thereof |
| CN112072078A (en) * | 2020-09-15 | 2020-12-11 | 昆山宝创新能源科技有限公司 | Pre-lithiated negative plate and preparation method and application thereof |
| CN112164797A (en) * | 2020-09-24 | 2021-01-01 | 蜂巢能源科技有限公司 | Pre-lithium electrode sheet membrane and preparation method and application thereof |
| CN112349953A (en) * | 2020-10-27 | 2021-02-09 | 珠海冠宇动力电池有限公司 | Lithium ion battery |
| CN112448030A (en) * | 2019-08-30 | 2021-03-05 | 中科邦汇新材料科技(东莞)有限公司 | Pre-lithiation electrolyte and preparation method of pre-lithiation lithium ion battery |
| CN112599723A (en) * | 2020-12-03 | 2021-04-02 | 天津市捷威动力工业有限公司 | Lithium-supplement negative pole piece, preparation method thereof and lithium ion battery |
| CN112909219A (en) * | 2021-01-20 | 2021-06-04 | 珠海冠宇电池股份有限公司 | Electrode assembly and lithium ion battery |
| CN113097448A (en) * | 2021-04-01 | 2021-07-09 | 昆山宝创新能源科技有限公司 | Lithium-supplementing negative electrode and application thereof |
| CN113346067A (en) * | 2021-08-02 | 2021-09-03 | 浙江金羽新能源科技有限公司 | Preparation method of flexible composite metal lithium film and lithium ion battery |
| CN113410424A (en) * | 2021-06-17 | 2021-09-17 | 昆山宝创新能源科技有限公司 | Lithium silicon-based negative electrode plate and preparation method and application thereof |
| CN113488612A (en) * | 2021-07-01 | 2021-10-08 | 昆山宝创新能源科技有限公司 | Silica pre-lithiation cathode and preparation method and application thereof |
| CN113675375A (en) * | 2021-08-12 | 2021-11-19 | 湖北亿纬动力有限公司 | Lithium-supplement negative plate, preparation method thereof and lithium ion battery |
| CN113921747A (en) * | 2021-09-30 | 2022-01-11 | 天津中能锂业有限公司 | Method for producing lithium-doped negative electrode and lithium-doped negative electrode |
| CN114335414A (en) * | 2021-11-15 | 2022-04-12 | 华中科技大学 | Method for pre-lithiation of electrode material of lithium ion battery, product and application thereof |
| CN114388790A (en) * | 2020-10-21 | 2022-04-22 | 比亚迪股份有限公司 | Battery prelithiation slurry, battery negative plate and lithium ion battery |
| CN115347256A (en) * | 2022-08-25 | 2022-11-15 | 江苏正力新能电池技术有限公司 | Manufacturing process of lithium-supplement negative plate of battery, lithium-supplement negative plate and battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145621A (en) * | 2006-09-14 | 2008-03-19 | 信越化学工业株式会社 | Non-aqueous electrolyte secondary battery and manufacturing method |
| CN102130359A (en) * | 2011-01-25 | 2011-07-20 | 天津中能锂业有限公司 | Lithium sulfur battery and preparation method thereof |
| CN103208612A (en) * | 2013-03-25 | 2013-07-17 | 东莞新能源科技有限公司 | Continuous lithium powder replenishing method for both sides of lithium ion battery negative plate |
-
2015
- 2015-06-10 CN CN201510314986.4A patent/CN104993098A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145621A (en) * | 2006-09-14 | 2008-03-19 | 信越化学工业株式会社 | Non-aqueous electrolyte secondary battery and manufacturing method |
| CN102130359A (en) * | 2011-01-25 | 2011-07-20 | 天津中能锂业有限公司 | Lithium sulfur battery and preparation method thereof |
| CN103208612A (en) * | 2013-03-25 | 2013-07-17 | 东莞新能源科技有限公司 | Continuous lithium powder replenishing method for both sides of lithium ion battery negative plate |
Cited By (50)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848270A (en) * | 2015-12-07 | 2017-06-13 | 微宏动力系统（湖州）有限公司 | Negative pole mends lithium slurry, negative pole and lithium secondary battery |
| CN106848209A (en) * | 2015-12-07 | 2017-06-13 | 微宏动力系统（湖州）有限公司 | Electrode of lithium secondary cell slurry, electrode and lithium secondary battery |
| US10633552B2 (en) | 2015-12-07 | 2020-04-28 | Microvast Power Systems Co., Ltd. | Lithium-supplementing slurry for anode, anode and lithium secondary battery |
| CN106848209B (en) * | 2015-12-07 | 2019-12-10 | 微宏动力系统（湖州）有限公司 | Electrode slurry for lithium secondary battery, electrode, and lithium secondary battery |
| CN105977450A (en) * | 2016-06-23 | 2016-09-28 | 盈天科技（深圳）有限公司 | Method for plating lithium on anode plate of lithium ion battery |
| CN106450229A (en) * | 2016-11-22 | 2017-02-22 | 深圳市鑫永丰科技有限公司 | Lithium metal powder coated by conductive polymer and preparation method and device of lithium metal powder |
| CN106450229B (en) * | 2016-11-22 | 2019-09-27 | 深圳市鑫永丰科技有限公司 | Metallic lithium powder of a kind of conducting polymer cladding and preparation method thereof and preparation facilities |
| CN106450481B (en) * | 2016-12-07 | 2019-06-04 | 清华大学深圳研究生院 | A kind of lithium ion battery and preparation method thereof |
| CN106450481A (en) * | 2016-12-07 | 2017-02-22 | 清华大学深圳研究生院 | Lithium ion battery and preparation method thereof |
| CN106654160A (en) * | 2017-01-24 | 2017-05-10 | 武汉理工力强能源有限公司 | Electrode plate activation method for negative electrode based on passivation metal lithium powder |
| CN109309194A (en) * | 2017-07-26 | 2019-02-05 | 中能中科（天津）新能源科技有限公司 | It is modified without cathode of lithium, preparation method and contains its lithium ion battery |
| CN110268557A (en) * | 2017-08-11 | 2019-09-20 | 株式会社Lg化学 | Use the prelithiation of lithium metal and inorganic composite layers |
| CN108878775A (en) * | 2018-06-29 | 2018-11-23 | 桑顿新能源科技有限公司 | It is a kind of to mend lithium composite negative pole pole piece and preparation method thereof safely |
| CN109755502A (en) * | 2018-12-10 | 2019-05-14 | 龙能科技(宁夏)有限责任公司 | A kind of silicon-carbon cathode mends the preparation method of pole piece |
| CN109755502B (en) * | 2018-12-10 | 2022-04-22 | 保力新能源科技股份有限公司 | Preparation method of silicon-carbon negative electrode lithium-supplementing pole piece |
| CN109802140A (en) * | 2018-12-21 | 2019-05-24 | 上海力信能源科技有限责任公司 | A kind of lithium battery cathode pole piece and preparation method thereof |
| CN109713227A (en) * | 2018-12-27 | 2019-05-03 | 陕西煤业化工技术研究院有限责任公司 | A kind of lithium ion battery prelithiation method |
| CN109786662A (en) * | 2019-01-18 | 2019-05-21 | 湖北锂诺新能源科技有限公司 | A kind of negative electrode of lithium ion battery mends pole piece and preparation method thereof |
| CN110085804A (en) * | 2019-05-16 | 2019-08-02 | 珠海冠宇电池有限公司 | A kind of Ultralight composite negative pole and the lithium ion battery containing the cathode |
| CN110165285A (en) * | 2019-05-20 | 2019-08-23 | 湖北锂诺新能源科技有限公司 | Mutually embedded button cell of positive/negative plate and preparation method thereof |
| CN110400985A (en) * | 2019-07-31 | 2019-11-01 | 清陶（昆山）能源发展有限公司 | A kind of negative electrode of lithium ion battery mends lithium composite membrane and its preparation method and application |
| CN112448030A (en) * | 2019-08-30 | 2021-03-05 | 中科邦汇新材料科技(东莞)有限公司 | Pre-lithiation electrolyte and preparation method of pre-lithiation lithium ion battery |
| CN110556511A (en) * | 2019-09-03 | 2019-12-10 | 珠海格力电器股份有限公司 | Lithium battery negative pole piece with excellent cycle performance, preparation method thereof and lithium ion battery |
| CN110556511B (en) * | 2019-09-03 | 2021-09-14 | 珠海格力电器股份有限公司 | Lithium battery negative pole piece with excellent cycle performance, preparation method thereof and lithium ion battery |
| CN111244555A (en) * | 2019-10-10 | 2020-06-05 | 江苏正力新能电池技术有限公司 | High-proportion silicon negative electrode solid-phase lithium supplement process |
| CN111029569B (en) * | 2019-11-11 | 2023-09-26 | 天津大学 | Lithium ion battery lithium supplementing additive, battery electrode, preparation method and application thereof |
| CN111029569A (en) * | 2019-11-11 | 2020-04-17 | 天津大学 | Lithium ion battery lithium supplement additive, battery electrode and preparation method and application thereof |
| CN111081982A (en) * | 2019-12-25 | 2020-04-28 | 松山湖材料实验室 | Lithium ion battery lithium supplementing method |
| CN111584853A (en) * | 2020-05-29 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Pre-lithiated negative electrode material and preparation method and application thereof |
| CN111725487A (en) * | 2020-06-30 | 2020-09-29 | 昆山宝创新能源科技有限公司 | Lithium-supplementing negative plate and preparation method and application thereof |
| CN112067672A (en) * | 2020-09-11 | 2020-12-11 | 昆山宝创新能源科技有限公司 | Method for testing specific capacity of pre-lithiated lithium powder and application thereof |
| CN112072077A (en) * | 2020-09-11 | 2020-12-11 | 昆山宝创新能源科技有限公司 | Pre-lithiated negative plate and preparation method and application thereof |
| CN112072078A (en) * | 2020-09-15 | 2020-12-11 | 昆山宝创新能源科技有限公司 | Pre-lithiated negative plate and preparation method and application thereof |
| CN112164797A (en) * | 2020-09-24 | 2021-01-01 | 蜂巢能源科技有限公司 | Pre-lithium electrode sheet membrane and preparation method and application thereof |
| CN112038582A (en) * | 2020-10-10 | 2020-12-04 | 合肥国轩高科动力能源有限公司 | Lithium supplementing device and lithium supplementing method |
| CN112038582B (en) * | 2020-10-10 | 2022-09-02 | 合肥国轩高科动力能源有限公司 | Lithium supplementing device and lithium supplementing method |
| CN114388790B (en) * | 2020-10-21 | 2023-11-14 | 比亚迪股份有限公司 | Pre-lithiation slurry for battery, negative plate for battery and lithium ion battery |
| CN114388790A (en) * | 2020-10-21 | 2022-04-22 | 比亚迪股份有限公司 | Battery prelithiation slurry, battery negative plate and lithium ion battery |
| CN112349953A (en) * | 2020-10-27 | 2021-02-09 | 珠海冠宇动力电池有限公司 | Lithium ion battery |
| CN112599723A (en) * | 2020-12-03 | 2021-04-02 | 天津市捷威动力工业有限公司 | Lithium-supplement negative pole piece, preparation method thereof and lithium ion battery |
| CN112909219A (en) * | 2021-01-20 | 2021-06-04 | 珠海冠宇电池股份有限公司 | Electrode assembly and lithium ion battery |
| CN113097448A (en) * | 2021-04-01 | 2021-07-09 | 昆山宝创新能源科技有限公司 | Lithium-supplementing negative electrode and application thereof |
| CN113410424A (en) * | 2021-06-17 | 2021-09-17 | 昆山宝创新能源科技有限公司 | Lithium silicon-based negative electrode plate and preparation method and application thereof |
| CN113488612A (en) * | 2021-07-01 | 2021-10-08 | 昆山宝创新能源科技有限公司 | Silica pre-lithiation cathode and preparation method and application thereof |
| CN113346067B (en) * | 2021-08-02 | 2021-11-26 | 浙江金羽新能源科技有限公司 | Preparation method of flexible composite metal lithium film and lithium ion battery |
| CN113346067A (en) * | 2021-08-02 | 2021-09-03 | 浙江金羽新能源科技有限公司 | Preparation method of flexible composite metal lithium film and lithium ion battery |
| CN113675375A (en) * | 2021-08-12 | 2021-11-19 | 湖北亿纬动力有限公司 | Lithium-supplement negative plate, preparation method thereof and lithium ion battery |
| CN113921747A (en) * | 2021-09-30 | 2022-01-11 | 天津中能锂业有限公司 | Method for producing lithium-doped negative electrode and lithium-doped negative electrode |
| CN114335414A (en) * | 2021-11-15 | 2022-04-12 | 华中科技大学 | Method for pre-lithiation of electrode material of lithium ion battery, product and application thereof |
| CN115347256A (en) * | 2022-08-25 | 2022-11-15 | 江苏正力新能电池技术有限公司 | Manufacturing process of lithium-supplement negative plate of battery, lithium-supplement negative plate and battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104993098A (en) | Lithium supplement negative electrode piece, preparing method thereof, lithium-ion supercapacitor and lithium-ion battery | |
| Long et al. | Nitrogen‐doped carbon networks for high energy density supercapacitors derived from polyaniline coated bacterial cellulose | |
| Xu et al. | Highly mesoporous and high surface area carbon: A high capacitance electrode material for EDLCs with various electrolytes | |
| TWI537996B (en) | Supercapacitor and method of manufacture thereof | |
| Peng et al. | Preparation of a cheap and environmentally friendly separator by coaxial electrospinning toward suppressing self-discharge of supercapacitors | |
| US20170174872A1 (en) | Aqueous composite binder of natural polymer derivative-conducting polymer and application thereof | |
| KR101056734B1 (en) | Electrode of high density supercapacitor and method of manufacturing the same | |
| CN103647104B (en) | Lithium-sulfur battery | |
| Qin et al. | Study of activated nitrogen-enriched carbon and nitrogen-enriched carbon/carbon aerogel composite as cathode materials for supercapacitors | |
| CN106784857B (en) | Water-based undercoat current collector for lithium ion battery and preparation method and application thereof | |
| CN106229158B (en) | A kind of preparation method and composite negative plate, lithium-ion capacitor of composite negative plate | |
| CN102360960B (en) | Super capacitor electrode material and super capacitor electrode production method | |
| KR20130029265A (en) | Method for preparing active agent slurry of electrode, and electrochemical capacitors comprising the electrode | |
| CN106128791A (en) | A kind of negative plate, preparation method and use the lithium-ion capacitor of this negative plate | |
| CN104201000B (en) | High-power lithium ion capacitor and manufacturing method thereof | |
| CN104282896A (en) | Nitrogen-doped carbon-coated graphite negative electrode material and preparation method thereof | |
| CN107403904A (en) | Lithium ion battery and negative plate thereof | |
| CN104425134A (en) | High-porosity and high-conductivity porous electrode, batch manufacturing process of porous electrode and super pseudo-capacitor using porous electrode | |
| Le Comte et al. | New generation of hybrid carbon/Ni (OH) 2 electrochemical capacitor using functionalized carbon electrode | |
| CN101388291B (en) | Boron containing porous carbon electrode material and preparation thereof | |
| Shi et al. | 3D mesoporous hemp-activated carbon/Ni3S2 in preparation of a binder-free Ni foam for a high performance all-solid-state asymmetric supercapacitor | |
| CN107086128B (en) | A kind of mixed type electrochmical power source device electrode and preparation method thereof | |
| CN105489392A (en) | Graphene pole piece and preparation method therefor | |
| CN106057493B (en) | A kind of preparation method of diaphragm of supercapacitor | |
| CN106356556B (en) | A kind of lithium-ion-power cell with long service life and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |
|
| RJ01 | Rejection of invention patent application after publication |