CN107958788A - One kind contacts embedding lithium type lithium ion super capacitor - Google Patents
One kind contacts embedding lithium type lithium ion super capacitor Download PDFInfo
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- CN107958788A CN107958788A CN201711274770.5A CN201711274770A CN107958788A CN 107958788 A CN107958788 A CN 107958788A CN 201711274770 A CN201711274770 A CN 201711274770A CN 107958788 A CN107958788 A CN 107958788A
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- Prior art keywords
- lithium
- super capacitor
- capacitor
- lithium ion
- paper tinsel
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 75
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000003990 capacitor Substances 0.000 title claims abstract description 70
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000007767 bonding agent Substances 0.000 claims description 10
- 239000003575 carbonaceous material Substances 0.000 claims description 9
- -1 polyethylene Polymers 0.000 claims description 8
- 239000002482 conductive additive Substances 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 5
- 229910021384 soft carbon Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000005030 aluminium foil Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000006253 pitch coke Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000011889 copper foil Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 239000004962 Polyamide-imide Substances 0.000 claims 1
- 229920002312 polyamide-imide Polymers 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 9
- 239000011258 core-shell material Substances 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 abstract description 2
- 238000004090 dissolution Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 15
- 229910052782 aluminium Inorganic materials 0.000 description 14
- 239000011257 shell material Substances 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- 229910010941 LiFSI Inorganic materials 0.000 description 2
- 229910001290 LiPF6 Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- VDVLPSWVDYJFRW-UHFFFAOYSA-N lithium;bis(fluorosulfonyl)azanide Chemical compound [Li+].FS(=O)(=O)[N-]S(F)(=O)=O VDVLPSWVDYJFRW-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- HEPLMSKRHVKCAQ-UHFFFAOYSA-N lead nickel Chemical compound [Ni].[Pb] HEPLMSKRHVKCAQ-UHFFFAOYSA-N 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
-
- 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
Abstract
The invention discloses one kind to contact pre- embedding lithium type lithium ion super capacitor, including plus plate current-collecting body, positive electrode, membrane, negative material, lithium paper tinsel, and metal mesh cathode collector, utilize the soft ductile mechanical property of lithium metal, by the structure that lithium paper tinsel is pressed to metal mesh collector, so that metal mesh forms the embedded overall structure reinforced with lithium paper tinsel, improving lithium paper tinsel, stretch resistance energy is low in electrode machining, be difficult to thinning processing and controls the deficiency of pre- lithium-inserting amount；Sprawl in collection liquid surface, form a film when being coated with easy to cathode size；So that negative active core-shell material can contact while being coated on negative current collector with lithium paper tinsel, the pre- embedding lithium of contact is easy to implement；The tolerance level of negative current collector negative current collector oxidation dissolution caused by the rise of anode current potential when capacitor overdischarge is lifted, lifts the electrochemical stability of negative current collector in the electrolyte, increases the charge and discharge cycles stability of capacitor.
Description
Technical field
The present invention relates to ultracapacitor field, more particularly to a kind of pre- embedding lithium type lithium ion super capacitor of contact.
Background technology
Ultracapacitor is also known as electrochemical capacitor, it is far high as a kind of new energy storage device, charge storage
In Typical physical capacitor, and charge/discharge rates, efficiency and security are better than storage battery
The lithium ion super capacitor set advantage of lithium ion battery and conventional Super capacitor, can be close in high power
The energy density of 3-5 times of conventional Super capacitor is obtained while degree, long-life and wide operating temperature.Lithium ion super capacitor
General cathode uses capacitance material, is the principal element of energy density limitation, and activated carbon is the most material of selection.This is because
Activated carbon has larger surface area and good electric conductivity, can meet the quick adsorption/desorption process of ion.Anode one
As use pre- embedding lithium battery cathode, be power density limitation principal element, mainly the carbon material such as hard carbon including pre- embedding lithium,
Metal oxide of soft carbon and graphite and lithium etc..Preembedded lithium can be supplemented during initial charge and consumed in electrolyte
Part ion, and keep negative potential to be in a relatively low value, and then the stability of negative material can be kept
And the service life cycle of increase capacitor.Meanwhile preembedded lithium can also lift the work potential scope of capacitor, from
And effectively lift the capacity and energy density of lithium ion super capacitor entirety.Therefore, the lithium compensation of lithium-ion capacitor anode
Prelithiation problem is the key further lifted of power-supply system performance.But in existing pre- embedding lithium mode, the pre- lithium of electrochemistry
Change technology, process cycle length；The pre-doping prelithiation of metallic lithium powder, then by safety issues such as the productions and processing for receiving lithium powder
Limitation.
The content of the invention
It is an object of the invention to provide one kind to contact embedding lithium type lithium ion super capacitor, it can realize that contact is pre- embedding
Lithium, it is simple in structure, security is good, and add the cyclical stability of capacitor.
Realizing the technical solution of above-mentioned purpose is：One kind of the present invention contacts embedding lithium type lithium ion super capacitor, please join
Read Fig. 1, including plus plate current-collecting body 101, positive electrode 102, membrane 103, negative material 104, negative current collector 105, lithium paper tinsel
106；Wherein：
The positive electrode is located at 101 surface of plus plate current-collecting body and forms capacitor anode；Lithium paper tinsel is pressed on negative current collector,
Lithium paper tinsel is set to be embedded among negative current collector, negative material is located at negative current collector surface, forms capacitor anode.
Cathode, membrane, anode are stacked gradually into placement, form capacitor.
The embedding lithium type lithium ion super capacitor of above-mentioned contact, wherein, the plus plate current-collecting body 101, can be aluminium foil, nickel
One kind in paper tinsel, stainless steel foil, thickness 5-30um；
The embedding lithium type lithium ion super capacitor of above-mentioned contact, wherein, the negative current collector 105, is metal mesh, metal
Can be one kind in copper foil, nickel foil, stainless steel foil, thickness 10-1000um, string diameter 5-500um, mesh 0.05-
5mm；
The embedding lithium type lithium ion super capacitor of above-mentioned contact, wherein, the positive electrode 102 is by high specific surface area porous
Carbon material 80-95%, specific surface area 1500-3500m2/g, are mixed with conductive additive 3-10%, bonding agent 3-10%, form
Slurry, slurry are coated on after plus plate current-collecting body 101 through drying, and compacting, thickness 20-200um, obtains capacitor anode；
The embedding lithium type lithium ion super capacitor of above-mentioned contact, wherein, the negative material 104 is by graphite-like soft carbon material
80-95%, is mixed with conductive additive 3-10%, bonding agent 3-10%, forms slurry, is coated on after having pressed lithium paper tinsel 106
Through drying after negative current collector 105, compacting, obtains capacitor anode.
Above-mentioned graphite-like soft carbon material, it is characterised in that be in the hot graphite in day, pitch coke, carbonaceous mesophase spherules
One or more of combinations
The embedding lithium type lithium ion super capacitor of above-mentioned contact, wherein, the lithium paper tinsel 106 is lithium metal, thickness 10-
50um。
The embedding lithium type lithium ion super capacitor of above-mentioned contact, wherein, the membrane 103, thickness 5-100um can be with
It is polyolefin such as polyethylene or polypropylene, polyester such as polyethylene terephthalate, polyamide, polyimides, cellulose, glass
Porous membrane made of glass fiber etc..
Below in conjunction with attached drawing 2, the invention will be further described.
The manufacturing process of the embedding lithium type lithium ion super capacitor of contact of the present invention is：
Coating thickness is 20-200 μm of positive electrode 102 on the surface of plus plate current-collecting body 101, can be in plus plate current-collecting body
Single or double is coated with；
Lithium paper tinsel 106 is pressed on negative current collector 105, using double roller film laminator roll-in, speed 0.5-5m/min, pressure
10-100t, this process is in moisture<Carried out under 100ppm environment；
Negative material 104 is coated on the negative current collector 105 after having pressed lithium paper tinsel 106, can be in the single side or double of collector
Face is coated with, this process carries out under vacuum environment.
Capacitor anode and anode are each cut into certain size, such as 5cm × 10cm, there will be 0.5mm wide along side
The part of the positive electrode and negative material of degree is removed so as to form the part for exposing collector.Made of aluminum is drawn
Line, aluminum steel 109, is soldered to the part of the plus plate current-collecting body exposed；Will made of nickel lead, nickel wire 110, is soldered to what is exposed
The part of negative current collector.
In the cathode and anode of manufacture, by membrane 103, between being placed in, Component units capacitor layer, and can be as needed
Multiple-level stack realizes the change of capacitance.Obtained capacitor layer is set to be contained in aluminum plastic film flexible package shell, plastic-aluminum shell 108.
Then, electrolyte 107 is poured into plastic-aluminum shell 108 so that being impregnated with electrolysis confrontation the positive electrode, the negative electrode and the separator.
Electrolyte 107, is, the concentration of 0.5-3mol/L contains EMIFSI solution of the LiFSI as lithium salts, or it is other containing
The organic solution or ionic liquid electrolyte of lithium salts solute.
Finally, capacitor protector is sealed while pressure is reduced using vacuum sealer.Thus, it is fabricated to the embedding lithium of contact
Type lithium ion super capacitor.
The advantages of contact embedding lithium type lithium ion super capacitor of the present invention is：Using metal mesh as negative current collector,
Using the soft ductile mechanical property of lithium metal, by the structure that lithium paper tinsel is pressed to metal mesh collector so that metal mesh with
Lithium paper tinsel forms the embedded overall structure reinforced, improve lithium paper tinsel in electrode machining stretch resistance can it is low, be difficult to thinning processing and
Control the deficiency of pre- lithium-inserting amount；Sprawl in collection liquid surface, form a film when being coated with easy to cathode size；So that negative active core-shell material exists
It can be contacted while being coated on negative current collector with lithium paper tinsel, be easy to implement the pre- embedding lithium of contact；Due to the net of metal mesh
Hole space structure, can effectively slow down electrode material in charge and discharge process take off, caused by embedding lithium electrode volume expand, lifted electrode
Cycle performance；Due to the chemism of lithium metal, anode potential rise when can lift negative current collector because of capacitor overdischarge
The tolerance level of negative current collector oxidation dissolution caused by height, reduces afflux bulk voltage, and negative current collector is lifted as sacrificial anode
Electrochemical stability in the electrolyte, increases the charge and discharge cycles stability of capacitor；Compared to usually used metallic lithium powder
To realize the technique of pre- embedding lithium, the high chemism the invention avoids metallic lithium powder causes inflammable and explosive danger.The present invention
It is simple in structure, security is good, there is very important practical significance and application value.
Brief description of the drawings
Fig. 1 is the level units structure chart of the embedding lithium type lithium ion super capacitor of contact of the present invention.
Fig. 2 is the overall stepped construction figure of the embedding lithium type lithium ion super capacitor of contact of the present invention.
Embodiment
Following embodiments provide a kind of embedding lithium type lithium ion super capacitor of contact：
Embodiment 1
Plus plate current-collecting body 101 is aluminium foil；Positive electrode 102 is mixed with by the activated carbon 90% of specific surface area 1800m2/g
Conductive black 5%, bonding agent PTFE emulsion 5%, form slurry, and slurry is coated on dry, compacting after plus plate current-collecting body, two-sided painting
Cloth, thickness are respectively 50um, obtain capacitor anode；Negative current collector 105 is copper mesh, thickness 45um, string diameter 25um, mesh
0.2mm；Lithium paper tinsel 106, thickness 15um are pressed thereon, using double roller film laminator roll-in, speed 2m/min, pressure 50t, in moisture
Content<Carried out under 100ppm environment；Negative material 104, by graphite 90%, is mixed with conductive black 5%, bonding agent PTFE emulsion
5%, slurry is formed, slurry is coated on dry, compacting after the negative current collector 105 after having pressed lithium paper tinsel 106, and double spread is thick
Degree is respectively 30um, obtains capacitor anode, this process carries out under vacuum environment；Capacitor anode and anode are each cut into
5cm × 10cm sizes, remove the part of the positive electrode and negative material with 0.5mm width so as to be formed along side
Expose the part of collector, aluminum steel 109, is soldered to the part of the plus plate current-collecting body exposed；Nickel wire 110, be soldered to expose it is negative
The part of pole collector；In cathode and anode, by membrane 103 (polyethylene porous separator), between being placed in, Component units capacitance
Device layer, and multiple-level stack；Obtained capacitor layer is set to be contained in plastic-aluminum shell 108.Then, by electrolyte 107 (LiPF6's
Ethylene carbonate/dimethyl carbonate volume ratio 1:1 solution), pour into plastic-aluminum shell 108 so that using electrolysis confrontation cathode, anode
Impregnated with membrane；Finally, capacitor protector is sealed, is fabricated to the embedding lithium type lithium ion super capacitor of contact.
Embodiment 2
Plus plate current-collecting body 101 is aluminium foil；Positive electrode 102 is mixed with by the activated carbon 85% of specific surface area 2200m2/g
Conductive black 10%, bonding agent PTFE emulsion 5%, form slurry, slurry is coated on dry, compacting after plus plate current-collecting body, two-sided
Coating, thickness is respectively 60um, obtains capacitor anode；Negative current collector 105 is nickel screen, thickness 30um, string diameter 15um, mesh
0.2mm；Lithium paper tinsel 106, thickness 10um are pressed thereon, using double roller film laminator roll-in, speed 1m/min, pressure 40t, in moisture
Content<Carried out under 100ppm environment；Negative material 104, by pitch coke 90%, is mixed with acetylene black 5%, bonding agent
PVDF5%, forms slurry, and slurry is coated on dry, compacting after the negative current collector 105 after having pressed lithium paper tinsel 106, two-sided painting
Cloth, thickness are respectively 40um, obtain capacitor anode, this process carries out under vacuum environment；By capacitor anode and anode each
10cm × 10cm sizes are cut into, remove the part of the positive electrode and negative material with 0.5mm width along side
So as to form the part for exposing collector, aluminum steel 109, is soldered to the part of the plus plate current-collecting body exposed；Nickel wire 110, is soldered to
The part of the negative current collector exposed；In cathode and anode, membrane 103 (polypropylene porous septum) between being placed in, is formed
Cell capaciator layer, and multiple-level stack；Obtained capacitor layer is set to be contained in plastic-aluminum shell 108.Then, by electrolyte 107
(1.0mol/L, LiPF6/ ethylene carbonate+dimethyl carbonate)+ethyl methyl carbonate), pour into plastic-aluminum shell 108 so that using electrolysis
Confrontation the positive electrode, the negative electrode and the separator is impregnated；Finally, capacitor protector is sealed, is fabricated to the embedding lithium type lithium ion super electricity of contact
Container.
Embodiment 3
Plus plate current-collecting body 101 is stainless steel foil；Positive electrode 102 is mixed by the activated carbon 92% of specific surface area 2800m2/g
Conductive black 3%, bonding agent PTFE emulsion 5% have been closed, has formed slurry, slurry is coated on dry, compacting after plus plate current-collecting body, double
Face is coated with, and thickness is respectively 25um, obtains capacitor anode；Negative current collector 105 is stainless (steel) wire, thickness 20um, string diameter 10um,
Mesh 0.3mm；Lithium paper tinsel 106, thickness 12um are pressed thereon, using double roller film laminator roll-in, speed 2m/min, pressure 60t, in
Moisture<Carried out under 100ppm environment；Negative material 104, by carbonaceous mesophase spherules 80%, is mixed with Ketjen black 10%, glues
Agent PVDF10% is met, forms slurry, slurry is coated on dry, compacting after the negative current collector 105 after having pressed lithium paper tinsel 106, double
Face is coated with, and thickness is respectively 60um, obtains capacitor anode, this process carries out under vacuum environment；By capacitor anode and anode
5cm × 8cm sizes each are cut into, go to the part of the positive electrode and negative material with 0.5mm width along side
Except exposing the part of collector so as to be formed, aluminum steel 109, is soldered to the part of the plus plate current-collecting body exposed；Nickel wire 110, welding
To the part of the negative current collector exposed；In cathode and anode, by membrane 103 (glass fibre porous septum), between being placed in,
Component units capacitor layer, and multiple-level stack；Obtained capacitor layer is set to be contained in plastic-aluminum shell 108.Then, by electrolyte
107 (LiFSI of 1mol/L is dissolved in EMIFSI), pour into plastic-aluminum shell 108 so that being carried out with electrolysis confrontation the positive electrode, the negative electrode and the separator
Dipping；Finally, by capacitance
Device shell seals, and is fabricated to the embedding lithium type lithium ion super capacitor of contact.
Above example is used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all equivalent
Technical solution should also belong to scope of the invention, should be limited by each claim.
Claims (8)
1. one kind contacts embedding lithium type lithium ion super capacitor, including plus plate current-collecting body (101), positive electrode (102), membrane
(103), negative material (104), negative current collector (105), lithium paper tinsel (106)；It is characterized in that：
The positive electrode (102) is coated on the one side or tow sides of plus plate current-collecting body (101), is then compacted, is dry, forming
Capacitor anode；Using double roller film laminator roll-in, among lithium paper tinsel (106) pressing is embedded in negative current collector (105), speed is
0.5-5m/min, pressure 10-100t, this process is in moisture<Carried out under 100ppm environment；Negative material (104) is coated on
The one side or tow sides of negative current collector (105), are then compacted, are dry, forming capacitor anode, this process is in vacuum environment
Lower progress；Cathode, membrane (103), anode stack gradually placement, form capacitor.
2. the embedding lithium type lithium ion super capacitor of contact according to claim 1, it is characterised in that the plus plate current-collecting body
(101) it is one kind in aluminium foil, nickel foil, stainless steel foil, thickness 5-30um.
3. the embedding lithium type lithium ion super capacitor of contact according to claim 1, it is characterised in that the positive electrode
(102) thickness is 20-200um；By the porous carbon materials that specific surface area is 1500-3500m2/g, hybrid conductive additive, glue
Connect agent and form, wherein porous carbon materials mass fraction 80-95%, conductive additive mass fraction 3-10%, bonding agent quality
Fraction 3-10%.
4. the embedding lithium type lithium ion super capacitor of contact according to claim 1, it is characterised in that the negative material
(104) thickness is 20-500um, by graphite-like soft carbon material, mixed conductive additive, bonding agent and form, wherein graphite-like is soft
The mass fraction 80-95% of carbon material, the mass fraction 3-10% of conductive additive, the mass fraction 3-10% of bonding agent.
5. the embedding lithium type lithium ion super capacitor of contact according to claim 4, it is characterised in that the graphite-like is soft
Carbon material is one or more of combinations in the hot graphite in day, pitch coke, carbonaceous mesophase spherules.
6. the embedding lithium type lithium ion super capacitor of contact according to claim 1, it is characterised in that the negative current collector
(105) it is metal mesh, metal is one kind in copper foil, nickel foil, stainless steel foil, thickness 10-1000um, string diameter 5-500um,
Mesh is 0.01-5mm.
7. the embedding lithium type lithium ion super capacitor of contact according to claim 1, it is characterised in that the lithium paper tinsel (106)
Thickness be 10-50um.
8. the embedding lithium type lithium ion super capacitor of contact according to claim 1, it is characterised in that the membrane (103)
Thickness be 5-100um, be by polyolefin such as polyethylene or polypropylene, polyester such as polyethylene terephthalate, polyamide
And polyimides, cellulose, porous membrane made of a kind of in glass fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274770.5A CN107958788A (en) | 2017-12-06 | 2017-12-06 | One kind contacts embedding lithium type lithium ion super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711274770.5A CN107958788A (en) | 2017-12-06 | 2017-12-06 | One kind contacts embedding lithium type lithium ion super capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107958788A true CN107958788A (en) | 2018-04-24 |
Family
ID=61957675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711274770.5A Pending CN107958788A (en) | 2017-12-06 | 2017-12-06 | One kind contacts embedding lithium type lithium ion super capacitor |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003823A (en) * | 2018-08-08 | 2018-12-14 | 上海奥威科技开发有限公司 | The manufacturing method of lithium-ion capacitor with the high power charging-discharging ability long-life |
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