CN103594687A - Preparation method of lithium fluorocarbon cell positive electrode - Google Patents
Preparation method of lithium fluorocarbon cell positive electrode Download PDFInfo
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- CN103594687A CN103594687A CN201310617270.2A CN201310617270A CN103594687A CN 103594687 A CN103594687 A CN 103594687A CN 201310617270 A CN201310617270 A CN 201310617270A CN 103594687 A CN103594687 A CN 103594687A
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- lithium fluorocarbon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/5835—Comprising fluorine or fluoride salts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
- H01M4/623—Binders being polymers fluorinated polymers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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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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Abstract
The invention discloses a preparation method of a lithium fluorocarbon cell positive electrode, a craft material comprises a base material, a conductive agent, a dispersant and a binder, The preparation method comprises the following steps: adding the dispersant in mixed liquor of pure water and the binder and then stirring; adding grinded conductive agent which is passed through a molecular sieve with 200 meshes in the mixed liquor and stirring; adding the base material in the mixed liquor and stirring; roasting a slurry at constant temperature for a certain time and adding alcohol for performing demulsification, employing a hot rolling mode for rolling the slurry to a film with thickness of 0.2-1.0mm; and then compacting the film on a nickel mesh current collector. According to the invention, the manufactured lithium fluorocarbon cell positive electrode has better conductivity, the dispersibility of fluorocarbon in pure water is stronger, the specific energy of the lithium fluorocarbon cell is higher, and the problems of poor conductivity and dispersibility, low specific energy existed in prior art can be overcome.
Description
Technical field
The present invention relates to a kind of preparation method of lithium fluorocarbon anode.
Background technology
Lithium fluorocarbon battery, as the high primary cell system of theoretical specific energy, is also a kind of battery that takes the lead in coming into the market in the anodal lithium battery series of solid.Extensive application on the platforms such as memory, emergency lamp signal telegraph, communication power supply, cardiac pacemaker, and receive very big concern.At present also underway to improving research and the application of battery specific energy and specific power, optimize fluorocarbons technology for preparing electrode technology, and the design parameter of flexible-packed battery, thereby prepare the lithium fluorocarbon battery of high-energy-density, be the main direction of studying at present.
Aspect the technology of preparing of design battery fluorocarbons electrode, the acetylene black of 10% mass fraction that adopts as electric conducting material more at present, because of its conductivity general, and the mass fraction taking is larger, therefore in fact reduced the specific energy of lithium fluorocarbon battery, also can there is the problem of bad dispersibility in fluorographite on the other hand.
Summary of the invention
The technical problem to be solved in the present invention: a kind of preparation method of lithium fluorocarbon anode, can improve the conductivity of conductive agent material, strengthen the dispersiveness of fluorocarbons in pure water, prepare the lithium fluorocarbon battery of high-energy-density, to overcome the deficiencies in the prior art.
Technical scheme of the present invention:
A preparation method for lithium fluorocarbon anode, process materials comprises base material, conductive agent, dispersant and binding agent, preparation method comprises the following steps:
Step 1: add dispersant and stir in the mixed liquor of pure water and binding agent;
Step 2: add in mixed liquor through grinding and cross the conductive agent of 200 order molecular sieves and stir;
Step 3: add base material and stir in mixed liquor;
Step 4: add alcohol to carry out breakdown of emulsion after the slurry obtaining through step 3 is after 60 ℃ of baking 20～30h;
Step 5: the mode roll-in that adopts hot-rolling to press in the slurry obtaining through step 4 goes out the rete that thickness is 0.2～1.0mm;
Step 6: by film lamination on nickel screen collector.
Above-mentioned base material, dispersant, binding agent and conductive agent mass ratio are respectively 90:1.5:4:4.5.
Aforesaid alcohol and binding agent volume ratio are 1:50.
Aforesaid base material is fluorographite (CFx).
Aforesaid conductive agent is Ketjen black (Ketjen Black).
Aforesaid dispersant is sodium carboxymethylcellulose (CMC).
Aforesaid binding agent is ptfe emulsion (PTFE).
Beneficial effect of the present invention:
The present invention has determined technology prepared by a kind of lithium fluorocarbon anode, for the water-soluble poor problem of existing base material fluorographite, by introducing dispersant sodium carboxymethylcellulose, carry out dispersed with stirring, and add conductive agent Ketjen black, compared with prior art, the lithium fluorocarbon anode of preparing by this kind of technique has better conductivity, and the dispersiveness of fluorocarbons in pure water is also stronger, and the specific energy of lithium fluorocarbon battery is also higher.Polyfluortetraethylene of binding element emulsion is better to the bond effect of conductive agent Ketjen black in the present invention simultaneously, makes the mechanical strength of carbon fluoride film higher.
accompanying drawing explanation:
Fig. 1 is the discharge curve of the lithium fluorocarbon battery prepared through the inventive method.
embodiment:
Embodiment:
A preparation method for lithium fluorocarbon anode, it comprises the following steps:
To in the mixed liquor of pure water and polytetrafluoroethylene PTFE emulsion, add sodium carboxymethylcellulose CMC to stir 0.5h, add again through grinding and cross the Ketjen black Ketjen Black of 200 order molecular sieves and stir 0.5h, add afterwards fluorographite to stir 1h, after the 60 ℃ of baking 24h of slurry that obtain, add alcohol to carry out breakdown of emulsion, and roll-in go out the rete of desired thickness, thickness can be between 0.2～1.0mm, film lamination, on nickel screen, is used to celgard barrier film, be assembled into pole plate group together with cathode of lithium.With plastic-aluminum packaging film encapsulation, after injection LB315 organic electrolysis liquid sealing, form battery.
The mass ratio of above-mentioned middle fluorographite, sodium carboxymethylcellulose, ptfe emulsion and Ketjen black is respectively 90:1.5:4:4.5, and alcohol and polytetrafluoroethylene volume ratio are 1:50.
The discharge curve that Fig. 1 is the lithium fluorocarbon battery prepared through the inventive method, in figure, show: the flexible-packed battery of rated capacity 6Ah discharges with 200mA under normal temperature (25 ± 5 ℃), voltage cut-off is to 1.5V, calculating its specific energy is 370Wh/kg, compare with existing battery, known this battery has higher specific energy.
Claims (7)
1. a preparation method for lithium fluorocarbon anode, process materials comprises base material, conductive agent, dispersant and binding agent, preparation method comprises the following steps:
Step 1: add dispersant and stir in the mixed liquor of pure water and binding agent;
Step 2: add in mixed liquor through grinding and cross the conductive agent of 200 order molecular sieves and stir;
Step 3: add base material and stir in mixed liquor;
Step 4: add alcohol to carry out breakdown of emulsion after 60 ℃ of baking 20～30h in the slurry obtaining through step 3;
Step 5: the mode roll-in that adopts hot-rolling to press in the slurry obtaining through step 4 goes out the rete that thickness is 0.2～1.0mm;
Step 6: by film lamination on nickel screen collector.
2. the preparation method of a kind of lithium fluorocarbon anode according to claim 1, is characterized in that: described base material, dispersant, binding agent and conductive agent mass ratio are respectively 90:1.5:4:4.5.
3. the preparation method of a kind of lithium fluorocarbon anode according to claim 1, is characterized in that: described alcohol and binding agent volume ratio are 1:50.
4. the preparation method of a kind of lithium fluorocarbon anode according to claim 1, is characterized in that: described base material is fluorographite.
5. the preparation method of a kind of lithium fluorocarbon anode according to claim 1, is characterized in that: described conductive agent is Ketjen black.
6. the preparation method of a kind of lithium fluorocarbon anode according to claim 1, is characterized in that: described dispersant is sodium carboxymethylcellulose.
7. the preparation method of a kind of lithium fluorocarbon anode according to claim 1, is characterized in that: described binding agent is ptfe emulsion.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702920A (en) * | 2014-11-25 | 2016-06-22 | 江苏永昌新能源科技有限公司 | Aqueous system preparation method of lithium battery positive plate |
| CN106654154A (en) * | 2016-12-26 | 2017-05-10 | 浙江瓦力新能源科技有限公司 | Water-based ion battery plate manufacturing process |
| CN108054404A (en) * | 2017-12-26 | 2018-05-18 | 贵州梅岭电源有限公司 | A kind of new lithium/fluorination carbon battery |
| CN109888213A (en) * | 2019-02-01 | 2019-06-14 | 山东重山光电材料股份有限公司 | A kind of preparation method of lithium/thinly chloride battery positive electrode |
| CN109962240A (en) * | 2017-12-25 | 2019-07-02 | 中国电子科技集团公司第十八研究所 | Method for preparing anode slurry for lithium carbon fluoride battery with carbon nanotube as conductive agent |
| CN111509221A (en) * | 2020-04-24 | 2020-08-07 | 惠州亿纬锂能股份有限公司 | Multiplying power type water system positive electrode slurry, preparation method thereof, obtained pole piece and battery, and application of battery |
| CN112599716A (en) * | 2020-12-16 | 2021-04-02 | 惠州亿纬锂能股份有限公司 | Carbon fluoride-based pole piece and preparation method and application thereof |
| CN112635773A (en) * | 2020-12-21 | 2021-04-09 | 中国科学院长春应用化学研究所 | Positive pole piece for primary battery and primary battery |
| CN113097457A (en) * | 2021-03-26 | 2021-07-09 | 中国电子科技集团公司第十八研究所 | High-stability fluorinated carbohydrate slurry and preparation method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007043526A1 (en) * | 2005-10-12 | 2007-04-19 | Mitsui Chemicals, Inc. | Nonaqueous electrolyte solution and lithium secondary battery using same |
| CN101065864A (en) * | 2004-11-26 | 2007-10-31 | 松下电器产业株式会社 | Lithium primary battery and method for producing same |
| US20100203390A1 (en) * | 2007-09-06 | 2010-08-12 | Koshi Takamura | Non-aqueous electrolyte battery |
| CN101877410A (en) * | 2009-04-27 | 2010-11-03 | 松下电器产业株式会社 | Lithium primary battery and manufacture method thereof |
| CN102361084A (en) * | 2011-10-10 | 2012-02-22 | 中国电子科技集团公司第十八研究所 | Carbon fluoride for lithium battery anode material |
| CN102473913A (en) * | 2009-07-21 | 2012-05-23 | 松下电器产业株式会社 | Lithium primary battery |
| CN102583298A (en) * | 2012-02-18 | 2012-07-18 | 无锡合志科技有限公司 | Preparation method of lithium iron phosphate compounded by graphite fluoride as cathode material of secondary lithium battery |
| CN102656729A (en) * | 2010-06-29 | 2012-09-05 | 松下电器产业株式会社 | Thin flexible battery |
| CN102723490A (en) * | 2012-06-13 | 2012-10-10 | 西北核技术研究所 | Carbon fluoride and application thereof |
| CN102903921A (en) * | 2012-10-31 | 2013-01-30 | 厦门大学 | Aqueous battery using carbon fluoride as anode |
| CN103000915A (en) * | 2012-12-28 | 2013-03-27 | 天津力神电池股份有限公司 | Primary fluorinated carbon lithium battery and preparation method thereof |
-
2013
- 2013-11-29 CN CN201310617270.2A patent/CN103594687B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101065864A (en) * | 2004-11-26 | 2007-10-31 | 松下电器产业株式会社 | Lithium primary battery and method for producing same |
| WO2007043526A1 (en) * | 2005-10-12 | 2007-04-19 | Mitsui Chemicals, Inc. | Nonaqueous electrolyte solution and lithium secondary battery using same |
| US20100203390A1 (en) * | 2007-09-06 | 2010-08-12 | Koshi Takamura | Non-aqueous electrolyte battery |
| CN101877410A (en) * | 2009-04-27 | 2010-11-03 | 松下电器产业株式会社 | Lithium primary battery and manufacture method thereof |
| CN102473913A (en) * | 2009-07-21 | 2012-05-23 | 松下电器产业株式会社 | Lithium primary battery |
| CN102656729A (en) * | 2010-06-29 | 2012-09-05 | 松下电器产业株式会社 | Thin flexible battery |
| CN102361084A (en) * | 2011-10-10 | 2012-02-22 | 中国电子科技集团公司第十八研究所 | Carbon fluoride for lithium battery anode material |
| CN102583298A (en) * | 2012-02-18 | 2012-07-18 | 无锡合志科技有限公司 | Preparation method of lithium iron phosphate compounded by graphite fluoride as cathode material of secondary lithium battery |
| CN102723490A (en) * | 2012-06-13 | 2012-10-10 | 西北核技术研究所 | Carbon fluoride and application thereof |
| CN102903921A (en) * | 2012-10-31 | 2013-01-30 | 厦门大学 | Aqueous battery using carbon fluoride as anode |
| CN103000915A (en) * | 2012-12-28 | 2013-03-27 | 天津力神电池股份有限公司 | Primary fluorinated carbon lithium battery and preparation method thereof |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702920A (en) * | 2014-11-25 | 2016-06-22 | 江苏永昌新能源科技有限公司 | Aqueous system preparation method of lithium battery positive plate |
| CN106654154A (en) * | 2016-12-26 | 2017-05-10 | 浙江瓦力新能源科技有限公司 | Water-based ion battery plate manufacturing process |
| CN109962240A (en) * | 2017-12-25 | 2019-07-02 | 中国电子科技集团公司第十八研究所 | Method for preparing anode slurry for lithium carbon fluoride battery with carbon nanotube as conductive agent |
| CN108054404A (en) * | 2017-12-26 | 2018-05-18 | 贵州梅岭电源有限公司 | A kind of new lithium/fluorination carbon battery |
| CN109888213A (en) * | 2019-02-01 | 2019-06-14 | 山东重山光电材料股份有限公司 | A kind of preparation method of lithium/thinly chloride battery positive electrode |
| CN111509221A (en) * | 2020-04-24 | 2020-08-07 | 惠州亿纬锂能股份有限公司 | Multiplying power type water system positive electrode slurry, preparation method thereof, obtained pole piece and battery, and application of battery |
| CN111509221B (en) * | 2020-04-24 | 2022-12-13 | 惠州亿纬锂能股份有限公司 | Multiplying power type water system positive electrode slurry, preparation method thereof, obtained pole piece and battery, and application of battery |
| CN112599716A (en) * | 2020-12-16 | 2021-04-02 | 惠州亿纬锂能股份有限公司 | Carbon fluoride-based pole piece and preparation method and application thereof |
| CN112599716B (en) * | 2020-12-16 | 2022-06-14 | 惠州亿纬锂能股份有限公司 | Carbon fluoride-based pole piece and preparation method and application thereof |
| CN112635773A (en) * | 2020-12-21 | 2021-04-09 | 中国科学院长春应用化学研究所 | Positive pole piece for primary battery and primary battery |
| CN113097457A (en) * | 2021-03-26 | 2021-07-09 | 中国电子科技集团公司第十八研究所 | High-stability fluorinated carbohydrate slurry and preparation method thereof |
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