CN101290983B - plate conductive structure - Google Patents
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- CN101290983B CN101290983B CN200710096447A CN200710096447A CN101290983B CN 101290983 B CN101290983 B CN 101290983B CN 200710096447 A CN200710096447 A CN 200710096447A CN 200710096447 A CN200710096447 A CN 200710096447A CN 101290983 B CN101290983 B CN 101290983B
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- 230000001427 coherent effect Effects 0.000 claims abstract description 7
- 239000003792 electrolyte Substances 0.000 claims abstract description 7
- 239000000758 substrate Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 102
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 229910052799 carbon Inorganic materials 0.000 claims description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 15
- 229910052744 lithium Inorganic materials 0.000 claims description 15
- 239000002033 PVDF binder Substances 0.000 claims description 11
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical class [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 11
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 239000005030 aluminium foil Substances 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 239000002322 conducting polymer Substances 0.000 claims description 4
- 229920001940 conductive polymer Polymers 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 229910052493 LiFePO4 Inorganic materials 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 2
- CJYZTOPVWURGAI-UHFFFAOYSA-N lithium;manganese;manganese(3+);oxygen(2-) Chemical compound [Li+].[O-2].[O-2].[O-2].[O-2].[Mn].[Mn+3] CJYZTOPVWURGAI-UHFFFAOYSA-N 0.000 claims description 2
- VROAXDSNYPAOBJ-UHFFFAOYSA-N lithium;oxido(oxo)nickel Chemical compound [Li+].[O-][Ni]=O VROAXDSNYPAOBJ-UHFFFAOYSA-N 0.000 claims description 2
- 230000037361 pathway Effects 0.000 claims description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 2
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 150000003457 sulfones Chemical class 0.000 claims description 2
- 229920002521 macromolecule Polymers 0.000 claims 2
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 102000004310 Ion Channels Human genes 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract 4
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 239000002134 carbon nanofiber Substances 0.000 description 16
- 239000000523 sample Substances 0.000 description 16
- 239000002482 conductive additive Substances 0.000 description 14
- 239000002002 slurry Substances 0.000 description 14
- 239000002904 solvent Substances 0.000 description 7
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
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- 229910001416 lithium ion Inorganic materials 0.000 description 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- 239000007787 solid Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
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- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Electrode And Active Subsutance (AREA)
Abstract
一种极板导电结构，包含由一或多种第一导电材所形成能提供电子传导机能之类管束型三维电子信道结构；由一或多种第二导电材所形成能提供活性物质吸附与承载支撑类管束型三维电子信道结构的导电连贯型三维结构；以及由第一导电材与第二导电材所组成能提供电解液或电解质离子传导通道的三维间隙空间结构。由类管束型三维电子信道结构与导电连贯型三维结构所形成的类网状三维结构(network-like3D structure)内部可作为离子信道，网状结构本身能增强活性物质于基材上的附着力，而传导信道亦能促使电子快速导通，用于制作电池，可以有效提升电池的充放电率(C-rate)。
A plate conductive structure includes a bundle-like three-dimensional electron channel structure formed by one or more first conductive materials that can provide electron conduction function; a conductive coherent three-dimensional structure formed by one or more second conductive materials that can provide active material adsorption and support for the bundle-like three-dimensional electron channel structure; and a three-dimensional gap space structure composed of the first conductive material and the second conductive material that can provide an electrolyte or electrolyte ion conduction channel. The network-like 3D structure formed by the bundle-like three-dimensional electron channel structure and the conductive coherent three-dimensional structure can be used as an ion channel. The network-like structure itself can enhance the adhesion of the active material on the substrate, and the conduction channel can also promote rapid conduction of electrons. When used to make batteries, it can effectively improve the battery's charge and discharge rate (C-rate).
Description
Technical field
The present invention is about a kind of conductive structures of polar plate, particularly relevant for a kind of conductive structures of polar plate that contains conductive additive matter.
Background technology
Lithium rechargeable battery has advantages such as high-energy-density, high working voltage and flash-over characteristic are steady, so all actively research and development of countries in the world, and the phase can be improved battery performance and reduced cost, to accord with the demands of the market.In order to improve the not good enough problem of lithium oxide pole plate electrical conductivity, add the material of high conduction usually, evenly mix in the slurry of lithium oxide, in order to promote the monolithic conductive degree of lithia system row pole plate
About utilizing conductive additive to promote the monolithic conductive degree of pole plate and the previous patent or the paper of electrical property efficiency mainly all is to be applied on the negative plates, patent documentations such as No. the 6806003rd, United States Patent (USP), No. the 2004224232nd, United States Patent (USP), Japan Patent 41-55776 number, No. the 2341693rd, Canadian Patent and Taiwan patent 232607B number for example.Wherein No. the 6806003rd, United States Patent (USP) is disclosed in negative pole for No. 2004224232 with United States Patent (USP) and uses carbon fine (carbonfibers) and carbon plate (carbon flakes) to be used as conductive additive; The synergy effect (synergistic effect) of using both to represent; Improve pole plate to the reserve capability of electrolyte and the conductivity of active body, in order to reach the bearing capacity of gain pole plate conductive effectiveness and high load currents.The Taiwan patent then discloses for No. 232607 to be used on a small quantity with formed CNT of high-temperature gas sedimentation or carbon fibre; On the pole plate of negative pole, form tool Jie's attitude phase graphite mixture (meso-phasegraphite mixture), in order to the conductive effectiveness of gain pole plate.
70-14582 number announcement of Japan Patent added carbonaceous property material to positive pole and can be reduced battery impedance.Japan Patent then discloses anodal low temperature discharge for 2003-092105 number to be improved; Because the fine bottom of carbon is open (ends are opened); Can cause uniform void shape (uniform pore shape), therefore can when low-temperature test, reduce impedance and promote performance.Japan Patent 2004-022177 number and Japan Patent all are disclosed as for 70-14582 number and promote electrical conductivity and add carbonaceous property material.Yet Japan Patent discloses whole conductive carbon materials and qualities for 2004-022177 number should account for 10% of anodal interior all powders, and flake graphite (graphite) must be arranged in the conductive carbon materials and qualities.Japan Patent discloses the conductive carbon materials and qualities for 2006-127823 number and comprises carbon fibre and carbon plate; But the slurry that comprises conductive carbon materials and qualities and adhesive agent after mixing; Must be when coating through a magnetic field that provides by external force; Let the direction of all conductive carbon materials and qualities all become vertical, relend afterwards by oven dry and fix the distribution of liquid slurry on base material with substrate surface.
Above-mentioned patent documentation does not disclose graphite and the carbon fibre tube of tool tubular structure and the mixing and structural design making conductive structures of polar plate of assembly that lithium is oxide of utilization tool laminated structure, uses the rate that discharges and recharges that promotes battery.
Summary of the invention
Because the problems referred to above, main purpose of the present invention promptly is to provide a kind of dynamical conductive structures of polar plate that has.
Another object of the present invention provides a kind of conductive structures of polar plate that can promote the battery charging and discharging rate.
For reaching above-mentioned and other purpose, the present invention provides a kind of conductive structures of polar plate, comprises by one or more first conduction material to form electrical conductivity function and so on tube bank type three-dimensional electronic channel architecture can be provided; Form the coherent type three-dimensional structure of a conduction that can provide active material to adsorb and carry support type tube bank type three-dimensional electronic channel architecture by one or more second conduction material; And conduct electricity material by the first conduction material and second and form the three-dimensional clearance space structure that electrolyte or electrolyte ion conduction pathway can be provided.Can be used as the ion channel by formed type of netted three-dimensional structure (network-like3D structrue) inside of the coherent type three-dimensional structure of class tube bank type three-dimensional electronic channel architecture and conduction; The adhesive force of network structure ability enhanced activity material on base material itself; And the conduction channel also can impel the quick conducting of electronics; Be used for manufacture batteries, can effectively promote the rate that discharges and recharges (C-rate) of battery.
Description of drawings
Fig. 1 is the rheological curve of demonstration comparative example 1 of the present invention with the slurry of embodiment 1;
Fig. 2 is the electron microscope structure of the electrode plate structure control sample of demonstration comparative example 1;
Fig. 3 is the electron microscope structure of the electrode plate structure sample of the demonstration embodiment of the invention 1;
Fig. 4 A overlooks the electron microscope structure for the electrode plate structure sample that shows the embodiment of the invention 2;
Fig. 4 B is the backstroke electron microscope structure of the electrode plate structure sample of the demonstration embodiment of the invention 2;
Fig. 4 C is the section electron microscope structure knot of the electrode plate structure sample of the demonstration embodiment of the invention 2;
Fig. 5 A overlooks the electron microscope structure for the electrode plate structure sample that shows the embodiment of the invention 3;
Fig. 5 B is the backstroke electron microscope structure of the electrode plate structure sample of the demonstration embodiment of the invention 3;
Fig. 5 C is the section electron microscope structure knot of the electrode plate structure sample of the demonstration embodiment of the invention 3;
Fig. 6 A overlooks the electron microscope structure for the electrode plate structure sample that shows the embodiment of the invention 4;
Fig. 6 B is the backstroke electron microscope structure of the electrode plate structure sample of the demonstration embodiment of the invention 4;
Fig. 6 C is the section electron microscope structure knot of the electrode plate structure sample of the demonstration embodiment of the invention 4; And
The heavy-current discharge electric capacity usefulness of the battery that Fig. 7 uses embodiment 1 and comparative example 1 for demonstration electrode plate structure sample is assembled as anode plate.
Execution mode
Conductive structures of polar plate of the present invention is mainly used in the lithium battery anode pole plate.Generally speaking, the lithium battery anode pole plate mainly comprises positive active material, for example lithium and cobalt oxides (LiCoO2), lithium manganese oxide (LiMn2O4), lithium nickel oxide (LiNiO2), iron lithium phosphate oxide (LiFePO4) or its mixture; Conductive additive, for example graphite (graphite), vapor deposition carbon fine (Vapor Grow Carbon Fiber, VGCF) or carbon black (carbon black); Adhesive agent, for example polyvinylidene fluoride (Polyvinylidene Fluoride, PVDF), poly aromatic base sulfone (polyarylsulfone, PAS), polytetrafluoroethylene (polytetrafluoro ethylene, PTEF) etc.; And solvent, for example N-methyl pyrrolidone (N-methyl pyrrolidinone, NMP).
Conductive additive used in the present invention; Can be divided into first kind conductive additive; Be tubulose conduction material, strip conduction material, shaft-like conduction material or the fibrous conduction material of Z direction greater than directions X and direction Y; And second type of conductive additive, promptly directions X and Y direction are greater than sheet conduction material, stratiform conduction material or the graininess conduction material of Z direction.The present invention mainly uses structure and the nature difference between first conductive additive and the second type of conductive additive; The spatial stability coordination mechanism that is produced; Accumulation through heterostructure, laminated and gatherings etc. self and interactive effect to each other form and have the netted three-dimensional structure of multi-functional and so on.Active material then is rooted on such netted three-dimensional structure through adhesive agent equably, obtains to have dynamical electrode plate structure.
First kind conductive additive used in the present invention can be carbonaceous system conduction material; For example carbon pipe, carbon are fine or fine (the Vapor Grow Carbon Fiber of vapor deposition carbon; VGCF), or be non-carbonaceous system conduction material, for example metal, the multiple material of conduction, and conducting polymer; And this first kind conductive additive can assemble the applying bunchiness each other and consecutive reticulates three-dimensional structure, forms a type tube bank type three-dimensional electronic channel architecture.Second type of conductive additive used in the present invention can be carbonaceous system conduction material; For example carbon black, graphite, and carbon 60; Or be that non-carbonaceous is the conduction material; For example metal, the multiple material of conduction, and conducting polymer, and this second type of conductive additive superposition three-dimensional structure that links each other form the conduction type three-dimensional structure that links up.Such tube bank type three-dimensional electronic channel architecture is three-dimensional clearance space structure with the clearance space that conduction links up beyond the type three-dimensional structure.
In an instantiation, use lithium and cobalt oxides and polyvinylidene fluoride active material and adhesive agent respectively as pole plate, the conduction material VGCF that has the conduction material KS of laminated structure and have tubular structure is used in collocation, in solvent, mixes and sizes mixing.After sizing mixing through mixing, conduction material VGCF with tubular structure is distributed on the pole plate base material bunchy; Coat conduction material KS simultaneously with laminated structure; And through the firm conduction material KS that links of polyvinylidene fluoride adhesive agent with laminated structure; And the conduction material VGCF with tubular structure, form having multi-functions type of netted three-dimensional structure.Measure viscosity through flow graph, judge mixability with rheological curve.After vacuumizing the interior noresidue bubble of affirmation slurry, (coater) evenly coats slurry on the base material of pole plate with coating machine.The instance of this base material comprises aluminium foil base material, alloy foil base material, nickel foil base material, platinum foil base material or copper alloy foil base material.In this instantiation, coating speed is between the scope of 0.1 to 20 meter/per minute, preferable scope between 0.1 to 10 meter/per minute, better scope between 0.5 to 5 meter/per minute.
Utilize baking procedure to make solvent evaporates, can carry out baking procedure 60 to 250 ℃ temperature range, preferable in 100 to 180 ℃ temperature range is carried out baking procedure.The active material lithium and cobalt oxides then is rooted on sheet conduction material KS and the netted three-dimensional structure of the tubulose conduction formed multi-functional class of material VGCF equably.After treating the slurry bone dry, for example use the spreading mode of circular shaft roller type platen press to carry out the spreading manufacturing approach, make structure fine and close more and solid firmly, make and have dynamical anode plate.
Because the relation of structure and density, the conduction material KS with laminated structure is prone to float after mixing slurry, and the sheet KS that floats can form the electronics path on the polar board surface, helps surface reaction.The conduction material VGCF that can go deep into having in the build-up of particles tubular structure then puts the particle that links different accumulation aspects through the bunchy of three-dimensional vertical and horizontal in an orderly manner; Form the electronics path net of vertical and horizontal; But connected surfaces and pole plate aluminium foil base material are used and are reached the gain effect that has high electrical conductivity usefulness and high-lithium ion transfer power concurrently.
On the other hand; Existence with conduction material VGCF of tubular structure can form the steric hindrance of structure space to the conduction material KS with laminated structure, and make sheet conduction material KS totally plane formula float on the pole plate upper strata; And cause fluctuating or the on-plane surface of sheet conduction material KS to put; And then increase the contact area of sheet conduction material KS and active material lithium and cobalt oxides, and forming the free space of electrode plate structure, the conversion efficiency of lithium ion is transmitted with turnover can provide suitable help.
Relative; Existence with conduction material KS of laminated structure; Also can form the steric hindrance of structure space, and make inserting in the hole between the particle that tubulose conduction material VGCF can't average vertical conduction material VGCF with tubular structure, also can't be across particle surface; Be pulled in the groove at particle handing-over interface cohering and form the tubulose conduction equipment structure of big bundle on the contrary.The conduction equipment structure of this big bundle can form the three-dimensional conductive structure net of big electronics path of tool, quickens the electron transport of polar board surface and aluminium foil base material.
The present invention promptly uses the conduction material additive VGCF with tubular structure and has the surface of the conduction material additive KS of laminated structure at the pole plate aluminium base; Distribution interlaced with each other, and form the netted three-dimensional conductive structure of class that intricate tool extends in all direction with solid and active matter.Little netted path is arranged in the netted three-dimensional conductive structure of this kind, the bunch channel of big bar is also arranged, structure interval also can form the flow channel (flow channel) of ion.Therefore, the netted three-dimensional conductive structure of this kind is applied to make electrode pad, can improves electronics and ionic conductance simultaneously.Moreover; Bunch passage with netted path formed little in the structure of pole plate of the netted three-dimensional conductive structure of this kind and big bar; Also can cause the little gathering of lithium and cobalt oxides; Thereby can form cellular structure, the structure of this kind multiple hole can be impelled the current of ion, increases the release and the accumulation of capacitance.
Below further specify characteristics of the present invention and effect through particular specific embodiment, but non-ly be used to limit category of the present invention.
Embodiment
Comparative example 1
Use N-methyl pyrrolidone as solvent, add the lithium and cobalt oxides of 89 weight %, the polyvinylidene fluoride of 4 weight % and the conduction material KS that 7 weight % have laminated structure.Use flow graph to confirm the slurry viscosity, the slurry rheological curve is promptly as shown in Figure 1.Slurry is applied to the pole plate base material with the speed of 1 meter/per minute, uses the baking oven of 3 meters of length overalls, 110 ℃ with 130 ℃ temperature conditions under carry out two stage baking procedures.After treating the solvent evaporates bone dry, carry out spreading, make electrode plate structure control sample 1, as shown in Figure 2.
Use N-methyl pyrrolidone as solvent; Add the lithium and cobalt oxides of 89 weight %, the polyvinylidene fluoride of 4 weight % and the conductive additive of 7 weight %; The conduction material KS that has laminated structure comprising 4 weight %; And 3 weight % have the conduction material VGCF (diameter is 100 to 200 microns, and length is 10 to 20 microns) of tubular structure.Use flow graph to confirm the slurry viscosity, the slurry rheological curve is promptly as shown in Figure 1.Slurry is applied to the pole plate base material with the speed of 1 meter/per minute, uses the baking oven of 3 meters of length overalls, 110 ℃ with 130 ℃ temperature conditions under carry out two stage baking procedures.After treating the solvent evaporates bone dry, carry out spreading, make electrode plate structure sample 1 of the present invention, as shown in Figure 3.
Repeat the step of embodiment 1, lithium and cobalt oxides change into 91 weight %, polyvinylidene fluoride changes 3 weight % into, conduction material KS with laminated structure changes 4 weight % into and conduction material VGCF with tubular structure changes 2 weight % into.Make electrode plate structure sample 2 of the present invention, shown in 4A to 4C figure.
Embodiment 3
Repeat the step of embodiment 1, lithium and cobalt oxides change into 91 weight %, polyvinylidene fluoride changes 3 weight % into, conduction material KS with laminated structure changes 3 weight % into and conduction material VGCF with tubular structure changes 3 weight % into.Make electrode plate structure sample 3 of the present invention, shown in 5A to 5C figure.
Repeat the step of embodiment 1, lithium and cobalt oxides change into 91 weight %, polyvinylidene fluoride changes 3 weight % into, conduction material KS with laminated structure changes 2 weight % into and conduction material VGCF with tubular structure changes 4 weight % into.Make electrode plate structure sample 4 of the present invention, shown in 6A to 6C figure.
The electrode plate structure sample that uses embodiment 1 and comparative example 1 respectively is as anode plate, measures heavy-current discharge electric capacity usefulness after being assembled into battery.As shown in Figure 7, the battery that the anode plate of increase VGCF addition is assembled has higher heavy-current discharge capacitance.
The foregoing description and comparative example are only done illustrative principle of the present invention and effect thereof, but not are used to limit the present invention.Any personage who is familiar with this skill all can be under spirit of the present invention and category, and above-mentioned instance is modified and changed.Therefore, rights protection scope of the present invention, the claim that Ying Ruhou states is listed.
Claims (16)
1. conductive structures of polar plate comprises:
Form type tube bank type three-dimensional electronic channel architecture that the electrical conductivity function can be provided by one or more first conduction material; And the Z direction of this first conduction material is greater than directions X and Y direction; Wherein, This first conduction material is selected from the cohort that tubulose conduction material, strip conduction material, shaft-like conduction material and fibrous conduction material are constituted, and the applying bunchiness assembled each other by this first conduction material and consecutive reticulates three-dimensional structure;
Form the coherent type three-dimensional structure of a conduction that can provide active material to adsorb and carry support type tube bank type three-dimensional electronic channel architecture by one or more second conduction material; And the directions X of this second conduction material and Y direction are greater than the Z direction; Wherein, This second conduction material is selected from sheet conduction material, stratiform conduction material, and the graininess conduction cohort that material constituted, and this second conduction material is the superposition three-dimensional structure that links each other; And
Form the three-dimensional clearance space structure that electrolyte or electrolyte ion conduction pathway can be provided by the first conduction material and the second conduction material; Wherein, This one or more second conduction material makes this one or more first conduction material cohering and form the three-dimensional conductive structure net; With accelerated electron conduction, and this one or more first conduction material causes this one or more second conduction material to rise and fall or on-plane surface is put, and then increases the contact area of this one or more second conduction material and this active material.
2. conductive structures of polar plate according to claim 1, wherein, this first conduction material is a carbonaceous system conduction material.
3. conductive structures of polar plate according to claim 2, wherein, this carbonaceous system conduction material is selected from carbon pipe and the fine cohort that is constituted of carbon.
4. conductive structures of polar plate according to claim 1, wherein, this first conduction material is that non-carbonaceous is the conduction material.
5. conductive structures of polar plate according to claim 4, wherein, this non-carbonaceous is that the conduction material is selected from metal, conduction is answered the cohort that material and conducting polymer are constituted.
6. conductive structures of polar plate according to claim 1, wherein, this second conduction material is a carbonaceous system conduction material.
7. conductive structures of polar plate according to claim 6, wherein, this carbonaceous system conduction material is selected from the cohort that carbon black, graphite and carbon 60 are constituted.
8. conductive structures of polar plate according to claim 1, wherein, this second conduction material is that non-carbonaceous is the conduction material.
9. conductive structures of polar plate according to claim 8, wherein, this non-carbonaceous is that the conduction material is selected from metal, conduction is answered the cohort that material and conducting polymer are constituted.
10. conductive structures of polar plate according to claim 1, wherein, this three-dimensional clearance space structure type of being meant tube bank type three-dimensional electronic channel architecture and the coherent type three-dimensional structure of conduction clearance space in addition.
11. conductive structures of polar plate according to claim 1, wherein, this active material is selected from the cohort that lithium and cobalt oxides (LiCoO2), lithium manganese oxide (LiMn2O4), lithium nickel oxide (LiNiO2) and iron lithium phosphate oxide (LiFePO4) are constituted.
12. conductive structures of polar plate according to claim 1, wherein, such tube bank type three-dimensional electronic channel architecture links up with conduction and combines typing with adhesive agent between the type three-dimensional structure.
13. conductive structures of polar plate according to claim 1 further comprises the pole plate base material.
14. conductive structures of polar plate according to claim 13, wherein, this pole plate base material is selected from the cohort that aluminium foil, alloy foil, nickel foil, platinum foil and copper alloy foil constitute.
15. conductive structures of polar plate according to claim 13, wherein, the coherent type three-dimensional structure of such tube bank type three-dimensional electronic channel architecture and conduction is passed through to the utmost point plate substrate of macromolecule adhesive agent gluing.
16. conductive structures of polar plate according to claim 15, wherein, this macromolecule adhesive agent is selected from the cohort that polyvinylidene fluoride, poly aromatic base sulfone and polytetrafluoroethylene are constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710096447A CN101290983B (en) | 2007-04-17 | 2007-04-17 | plate conductive structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710096447A CN101290983B (en) | 2007-04-17 | 2007-04-17 | plate conductive structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101290983A CN101290983A (en) | 2008-10-22 |
| CN101290983B true CN101290983B (en) | 2012-08-29 |
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| CN200710096447A Expired - Fee Related CN101290983B (en) | 2007-04-17 | 2007-04-17 | plate conductive structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6806003B1 (en) * | 1999-09-30 | 2004-10-19 | Sony Corporation | Nonaqueous electrolyte secondary battery having a negative electrode containing carbon fibers and carbon flakes |
| CN1770344A (en) * | 2004-10-25 | 2006-05-10 | 中国科学院电工研究所 | A kind of supercapacitor and its manufacturing method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6806003B1 (en) * | 1999-09-30 | 2004-10-19 | Sony Corporation | Nonaqueous electrolyte secondary battery having a negative electrode containing carbon fibers and carbon flakes |
| CN1770344A (en) * | 2004-10-25 | 2006-05-10 | 中国科学院电工研究所 | A kind of supercapacitor and its manufacturing method |
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