CN105633415A - Active nano carbon cellulose Al-Cu mesh vacuum coated electrode high energy battery - Google Patents

Active nano carbon cellulose Al-Cu mesh vacuum coated electrode high energy battery Download PDF

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Publication number
CN105633415A
CN105633415A CN201511025756.2A CN201511025756A CN105633415A CN 105633415 A CN105633415 A CN 105633415A CN 201511025756 A CN201511025756 A CN 201511025756A CN 105633415 A CN105633415 A CN 105633415A
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China
Prior art keywords
battery
net grid
nano carbon
positive
active nano
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CN201511025756.2A
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Chinese (zh)
Inventor
李连博
刘洪立
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Individual
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Priority to CN201511025756.2A priority Critical patent/CN105633415A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
    • H01M10/38—Construction or manufacture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/665—Composites
    • H01M4/667—Composites in the form of layers, e.g. coatings
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/70—Carriers or collectors characterised by shape or form
    • H01M4/72—Grids
    • H01M4/74—Meshes or woven material; Expanded metal
    • H01M4/745—Expanded metal
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Nanotechnology (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention discloses an active nano carbon cellulose Al-Cu mesh vacuum coated electrode high energy battery. The battery comprises a battery jar, a positive mesh, a negative mesh and a diaphragm, wherein the positive mesh and the negative mesh are arranged in the battery jar, the diaphragm is arranged between the positive mesh and the negative mesh; solidified electrolyte is arranged in a space defined by the diaphragm, the positive mesh and the negative mesh; a jar cover for sealing a battery is arranged at the upper end of the battery jar; at a positive electrode contact and a negative electrode contact, the positive electrode contact is connected with the positive mesh and the negative electrode contact is connected with the negative mesh. The active nano carbon cellulose Al-Cu mesh vacuum coated electrode high energy battery can be charged with large current, and therefore charge time can be shortened greatly; due to high specific energy, the battery weight can be reduced largely, the property of an electrode plate can be changed and the power capacity of the battery can be improved.

Description

Active nano carbon fine element aluminium copper net grid vacuum plating electrode high tension battery
Technical field
The present invention relates to the Large Copacity high-molecular battery that the element vacuum plating of a kind of Nano carbon fibers changes pole plate proterties, it is specially active nano carbon fine element aluminium copper net grid vacuum plating electrode high tension battery, belongs to electrochemical storage cell technical field.
Background technology
Lithium cell, as the green energy resource of relative maturity, is current electromobile, the core component of electronic bike equal energy source carrier, receives the favor more and more with users of vast car enterprise and concern. But lithium cell still faces problems at present. Wherein topmost problem is capacity and the stability of battery. What commonly use in Anode of lithium cell is graphite, cobalt acid lithium etc. Also useful graphite does negative electrode active material. Many defects and deficiency is had what existing store battery comprised lithium cell. The first duration of charging is excessively long, reaches 2 ~ 8 hours, wants 20 minutes at the soonest, and the practical application of store battery is extremely restricted. To be that pole plate specific surface area is little cause major cause. Pole plate heat effect can be caused during large current charge, make battery distortion, explode and split and lost efficacy. Heavy-current discharge causes voltage to reduce, and capacity also reduces with the increase of discharging current. Secondly, specific energy is too low, causes its weight too heavy, too stupid, limits the useful load of mechanical carrier instrument, thus limit the operational use time of course continuation mileage and energy device. 3rd, the electrode of lithium ion battery mainly relies on coating technique to complete to prepare and also receive more and more concerns. These processes mainly use N methyl pyrrolidone (N methYi Z pyrrolidone hereinafter referred NMP) as solvent. General positive pole uses aluminium foil as metal collector, and negative pole adopts Copper Foil as metal collector. But itself does not provide any capacity, it is invalid quality, also reduces lithium cell energy density 20 ~ 30%. But for metal collector as electrode matrix, it is provided that the supporting role of conduction. Also it is the parts that lithium cell is indispensable. But the expansion of positive and negative electrode electrode during discharge and recharge of these materials formation and contraction, along with these unfavorable factors of broken metallic particles will occur discharge and recharge infinite loop, also cause charging and discharging lithium battery cycle life greatly to shorten.
Summary of the invention
Goal of the invention: the present invention provides a kind of active nano carbon fine element aluminium copper net grid vacuum plating electrode high tension battery, its objective is to solve in the past existing problem.
Technical scheme: the present invention is achieved by the following technical solutions:
A kind of active nano carbon fine element vacuum plating polymer high tension battery, it is characterised in that: this battery battery jar, positive pole net grid, negative pole net grid and barrier film; Positive pole net grid, negative pole net grid and barrier film are arranged in battery jar, barrier film is arranged between positive pole net grid, negative pole net grid, it is provided with solidification electrolytic solution in the space formed between barrier film and positive pole net grid and negative pole net grid, the groove lid of closing battery it is provided with in the upper end of battery jar, in positive electrode contact and negative electrode contact, positive electrode contact connects positive pole net grid, and negative electrode contact connects negative pole net grid.
Positive pole net grid are beaten micropore by aluminium foil and are formed or aluminium foil screen cloth is formed; Negative pole net grid beat micropore by Copper Foil or Copper Foil screen cloth is formed.
Active nano carbon fine element layer it is provided with in the periphery of positive pole net grid and negative pole net grid.
The active nano carbon fine element diameter of active nano carbon fine element layer is 25 ~ 90nm, and length is 180 ~ 350nm.
Barrier film is provided with nanometer level microporous.
Between positive and negative electrode net grid and barrier film, there is the Small Distance becoming bulky capacitor.
Advantage and effect: the present invention provides a kind of active nano carbon fine element aluminium copper net grid vacuum plating electrode high tension battery, whole battery component is all contained in battery jar, groove lid is had above battery jar, play the effect of closing battery, battery jar is built with positive pole net grid, negative pole net grid and barrier film, there is solidification electrolytic solution in the surrounding of barrier film, and covering face at groove has positive electrode contact, welds mutually with the positive pole net grid of the inside. Negative electrode contact is welded mutually with the negative pole net grid of the inside.
The present invention can with large current charge, it is possible to greatly shorten the duration of charging, specific energy height, can greatly reduce battery weight, change pole plate proterties, change coating process level, change the fine element of positive and negative electrode coating material nano-scale carbon, increase specific area, it is to increase power of battery capacity.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention;
Fig. 2 is positive and negative electrode net grid structure iron;
Fig. 3 is positive and negative electrode structure iron;
Fig. 4 is the equivalent-circuit diagram of the present invention.
1, battery jar; 2, cell through lid; 3, positive pole net grid; 4, negative pole net grid; 5, barrier film; 6, electrolytic solution is solidified; 7, positive electrode contact; 8, negative potential contact; 9, active nano carbon fine element layer; 10, net gate hole.
Embodiment:Below in conjunction with accompanying drawing, the present invention is described further:
The present invention relates to a kind of active nano carbon fine element aluminium copper net grid vacuum plating electrode high tension battery, this battery battery jar 1, positive pole net grid 3, negative pole net grid 4 and barrier film 5; Positive pole net grid 3, negative pole net grid 4 and barrier film 5 are arranged in battery jar 1, barrier film 5 is arranged between positive pole net grid 3, negative pole net grid 4, solidification electrolytic solution 6 it is provided with in the space formed between barrier film 5 and positive pole net grid 3 and negative pole net grid 4, the groove lid 2 of closing battery it is provided with in the upper end of battery jar 1, in positive electrode contact 7 and negative electrode contact 8, positive electrode contact 7 connects positive pole net grid 3, and negative electrode contact 8 connects negative pole net grid 4. The electrolytic solution being filled in battery jar is that the electrolytic solution through solidifying does not flow and overflow condition, positive and negative electrode net grid and and barrier film between all there is the Small Distance becoming bulky capacitor, said barrier film is made up of the macromolecule polypropylene of high insulation resistance, and its size is identical with battery jar inside dimension. Positive and negative electrode contact structure more can installation and removal between series of cells easily and fast
Positive pole net grid 3 are beaten micropore by aluminium foil and are formed or aluminium foil screen cloth is formed; Negative pole net grid 4 beat micropore by Copper Foil or Copper Foil screen cloth is formed.
Active nano carbon fine element layer 9 it is provided with in the periphery of positive pole net grid 3 and negative pole net grid 4. Active nano carbon fine element rete is institute's spray under vacuum, and rete is through roll extrusion, and thickness is even, cohesive strength height
The active nano carbon fine element diameter of active nano carbon fine element layer 9 is 25 ~ 90nm, and length is 180 ~ 350nm.
Barrier film 5 is provided with micropore.
Between positive and negative electrode net grid and barrier film, there is the Small Distance becoming bulky capacitor.
In order to solve the duration of charging short broken problem with positive/negative plate metallic particles. Nano carbon fibers is plain, carbon nano wire equal diameter is less than 500nm nano level compound particles is placed in alcohol type organic solution and the aqueous solution, is mixed into uniform suspension liquid and invades bubble. Carry out vacuum filtration or high pressure press filtration afterwards with polypropylene film, take off from filter membrane after to be dried and carry out ball milling, screening, with Vacuum Coating method by its spraying plating on positive and negative electrode nethike embrane. Former pole plate has convergent-divergent. And make nethike embrane, change this kind of unfavorable characteristic. Nethike embrane be aluminium foil, Copper Foil metallic mesh or net sieve. Roll extrusion is carried out after in nano level active material granule spraying plating, active material particle links together very high intensity, the expansion caused due to metal tube infinite loop during just avoiding discharge and recharge and contraction, make the unfavorable factor of metallic particles fragmentation, battery cycle life is extended greatly, can extend to 10 ~ 15 years. Vacuum spraying has directional property, and spray material does not have scattering, saves spray material, and air ambient is pollution-free.
In order to improve the electroconductibility of polarity, compensate the electron conduction of active substance, conductive agent and tackiness agent can also be added, Nano carbon fibers element and nethike embrane grid are bonded together and carry out roll extrusion, make lead-in wire having aluminium foil or aluminium band and weld with the contact outside groove as positive wire. The same negative pole of positive pole manufacture craft. So the fine element of active nano carbon that positive pole bonds its surface by aluminium net grid and Vacuum Coating method is formed, negative pole net grid bond the active nano carbon fine element layer on its surface by copper net grid and Vacuum Coating method, and namely nano-carbon layer is formed. The paper-like barrier film having tiny holes by one layer between positive pole and negative pole separates. This battery core is a kind of novel battery energy, and it is not containing metallic lithium, and in charge and discharge process, only carbon ion accommodating movement between positive and negative electrode, the energy capacity density of carbon ion battery core can reach 300wh/L, and volume by weight density can reach 125wh/L. In discharge and recharge carries out, carbon ion embeds between positive and negative electrode and deviates from, and the battery core that shuttles back and forth is inner and does not have metallic lithium, therefore carbon ion battery core safety and stablization more.
It is illustrated in figure 2 positive and negative electrode net grid structure iron, it is respectively and is equipped with micropore by aluminium foil, Copper Foil, or substitute by aluminium foil, Copper Foil screen cloth.
As shown in Figure 3, in the vacuum spray roll extrusion of net grid two sides, bonding the active nano carbon fine element layer 9 on its surface, the electrode contact 7 on the electrode and groove lid 2 of the extraction of the top of net grid 3 is welded into an entirety, forms battery positive pole. The same positive pole of negative pole structure. Activated carbon fine element layer diameter is 20 ~ 90nm, and length is that 180 ~ 350nm. often organizes in battery jar 1 and has a Small Distance between positive and negative electrode net grid and barrier film 5 thereof, forms a bulky capacitor between Small Distance.
As shown in Figure 4, the fine element electrode vacuum plating polymer high-energy battery equivalence of active nano carbon is in parallel in a big battery E and bulky capacitor C, and its total energy P=E+W is two element power sums.
The present invention can adopt large current charge, greatly shortens the duration of charging, and weight reduces greatly, it may also be useful to the life-span is long, and volume greatly reduces, and specific energy can reach 300wh/kg, and power can reach more than 1000w/kg, has the store battery of battery, electric capacity two kinds of characteristics. Cell container is from 150mAH to 300AH, and electric power battery can reach 30000AH, and bulky capacitor capacity is from 10 farads to 3000 farads. Weight is lead storage battery 1/12 only, and volume only has 1/6, and the duration of charging only has 60 seconds the soonest. Have wide range of applications, as long as having the place of electricity consumption, equipment, containing fields such as industry, agricultural, communications and transportation, national defence.
The fine plain size of active nano carbon own is minimum, and theoretical according to electric current surface action, it has great specific surface area, bigger than lithium ion material 700 times of the surface-area that nano-sized carbon is formed. Extremely high activity and porosity, heat radiation efficiency height, even if by very big electric current, its current density is also very little, so the positive and negative electrode that this kind of process materials is made can not produce heat effect by very big charging current. The present invention shortens the duration of charging greatly, it is possible to reach big current rapid charge, and small area analysis low voltage is discharged at a slow speed the object of (use procedure). With the Nano carbon fibers element of below diameter 500nm in powder filter screening process, obtaining the Nano carbon fibers element of length 180 ~ 350nm diameter 20 ~ 90nm, make positive and negative electrode net grid by vacuum spraying roll extrusion mode, its surface-area is big, reaches effect fast and safely.
The battery of this kind of structure, all possesses Small Distance and forms Large Copacity, have the characteristic of farad level electric capacity and high power battery with its barrier film between positive and negative electrode. Its equivalent electrical circuit is equivalent to a bulky capacitor and a high power battery parallel connection. Its equivalent electrical circuit is as shown in Figure 4. Barrier film has the macromolecule polypropylene of high insulation resistance to make.
From Fig. 4 analysis, when charging, first electric capacity charge, and is equivalent to external circuit multiple absorption electric capacity in parallel, electric current can be prevented excessive and explode, be particularly useful for big current and fill soon. Because the charging current of electric capacity equals electric capacity and battery charge sum. When discharging instantaneously, because electric capacity has angle of lead characteristic, first electric discharge adapts to the needs of heavy-current discharge. If discharged for a long time, battery just can adapt to the needs of slow play electricity and long-time slow play is electric. General load needs long-time work, is the process of a slow play electricity. Discharging current also equals electric capacity and battery discharge current sum. This is also the advantage of capacitive cell.
From equivalent electrical circuit it may be seen that electric capacity and battery are owing to being parallel running, voltage is equal, can't produce flowing electric current. If the electric current of battery is I, its power is E=IV, if the capacity of electric capacity is C, and its power W=1/2CV2, total energy P=E+W, i.e. power sum on two elements. So the cell body total energy of this kind of process structure has exceeded cell and monomer electric capacity. Owing to total energy improves greatly, so its volume and weight of battery producing identical energy also just alleviates greatly, also mitigate the delivery burden of vehicle, alleviate the volume of power set, add power.
In sum, the present invention belongs to capacitive cell, between each group of positive/negative plate and barrier film thereof, all there is Small Distance formation bulky capacitor, namely being equivalent to some small capacitances and be unified into a bulky capacitor and cell parallel, due to the change of pole plate proterties, it is only 60 seconds with high current charge-discharge, duration of charging and is full of, specific energy improves greatly, weight reduces greatly, and volume diminishes greatly, can be applicable to all and uses electrical domain.

Claims (6)

1. an active nano carbon fine element vacuum plating polymer high tension battery, it is characterised in that: this battery battery jar (1), positive pole net grid (3), negative pole net grid (4) and barrier film (5); Positive pole net grid (3), negative pole net grid (4) and barrier film (5) are arranged in battery jar (1), barrier film (5) is arranged between positive pole net grid (3), negative pole net grid (4), solidification electrolytic solution (6) it is provided with in the space formed between barrier film (5) and positive pole net grid (3) and negative pole net grid (4), the groove lid (2) of closing battery it is provided with in the upper end of battery jar (1), in positive electrode contact (7) and negative electrode contact (8), positive electrode contact (7) connects positive pole net grid (3), and negative electrode contact (8) connect negative pole net grid (4).
2. active nano carbon according to claim 1 fine element vacuum plating polymer high tension battery, it is characterised in that: positive pole net grid (3) is beaten micropore by aluminium foil and is formed or aluminium foil screen cloth is formed; Negative pole net grid (4) beats micropore by Copper Foil or Copper Foil screen cloth is formed.
3. active nano carbon according to claim 1 fine element vacuum plating polymer high tension battery, it is characterised in that: active nano carbon fine element layer (9) it is provided with in the periphery of positive pole net grid (3) and negative pole net grid (4).
4. active nano carbon according to claim 3 fine element vacuum plating polymer high tension battery, it is characterised in that: the active nano carbon of active nano carbon fine element layer (9) fine element diameter is 25 ~ 90nm, and length is 180 ~ 350nm.
5. active nano carbon according to claim 3 fine element vacuum plating polymer high tension battery, it is characterised in that: barrier film (5) is provided with nanometer level microporous.
6. active nano carbon according to claim 1 fine element vacuum plating polymer high tension battery, it is characterised in that: between positive and negative electrode net grid and barrier film, there is the Small Distance becoming bulky capacitor.
CN201511025756.2A 2015-12-31 2015-12-31 Active nano carbon cellulose Al-Cu mesh vacuum coated electrode high energy battery Pending CN105633415A (en)

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Application Number Priority Date Filing Date Title
CN201511025756.2A CN105633415A (en) 2015-12-31 2015-12-31 Active nano carbon cellulose Al-Cu mesh vacuum coated electrode high energy battery

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101236841A (en) * 2008-01-11 2008-08-06 上海纳晶科技有限公司 An electric chemical super capacitor making method
CN102918614A (en) * 2010-05-31 2013-02-06 住友电气工业株式会社 Capacitor and process for producing same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101236841A (en) * 2008-01-11 2008-08-06 上海纳晶科技有限公司 An electric chemical super capacitor making method
CN102918614A (en) * 2010-05-31 2013-02-06 住友电气工业株式会社 Capacitor and process for producing same

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Application publication date: 20160601