CN103594687B - The preparation method of lithium fluorocarbon cell positive electrode - Google Patents

The preparation method of lithium fluorocarbon cell positive electrode Download PDF

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Publication number
CN103594687B
CN103594687B CN201310617270.2A CN201310617270A CN103594687B CN 103594687 B CN103594687 B CN 103594687B CN 201310617270 A CN201310617270 A CN 201310617270A CN 103594687 B CN103594687 B CN 103594687B
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preparation
positive electrode
cell positive
lithium fluorocarbon
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CN103594687A (en
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魏俊华
谭思平
王庆杰
王雪丽
赵洪楷
王朝立
陈香
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Guizhou Meiling Power Supply Co Ltd
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Guizhou Meiling Power Supply Co Ltd
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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
    • 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
    • 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
    • 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
    • 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
    • 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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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention discloses a kind of preparation method of lithium fluorocarbon cell positive electrode, process materials comprises base material, conductive agent, dispersant and binding agent, and preparation method comprises the following steps: in the mixed liquor of pure water and binding agent, add dispersant and stir; Add in mixed liquor through grind and cross 200 order molecular sieves conductive agent stir; In mixed liquor, add base material and stir; Slurry is added alcohol after steady temperature dries certain hour and carries out breakdown of emulsion; Adopt the mode of hot-rolling pressure that slurry roll-in is gone out the rete that thickness is 0.2 ~ 1.0mm; Rete is compressed on nickel screen collector.The lithium fluorocarbon cell positive electrode prepared by the present invention 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, overcomes conductivity that prior art exists and bad dispersibility, problem that specific energy is low.

Description

The preparation method of lithium fluorocarbon cell positive electrode
Technical field
The present invention relates to a kind of preparation method of lithium fluorocarbon cell positive electrode.
Background technology
Lithium fluorocarbon battery, as the high primary cell system of theoretical specific energy, is also a kind of battery taking the lead in solid positive pole lithium battery series coming into the market.Extensive application on the platforms such as memory, emergency lamp signal telegraph, communication power supply, cardiac pacemaker, and receive very big concern.Also underway to the investigation and application improving battery specific energy and specific power at present, optimize fluorocarbons technology for preparing electrode technology, and the design parameter of flexible-packed battery, thus prepare the lithium fluorocarbon battery of high-energy-density, be the Main way of research at present.
In 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 its conductivity is general, and the mass fraction taken is larger, therefore actually reduce 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 cell positive electrode, the conductivity of conductive agent material can be improved, 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 cell positive electrode, process materials comprises base material, conductive agent, dispersant and binding agent, and 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 grind and cross 200 order molecular sieves conductive agent stir;
Step 3: add base material and stir in mixed liquor;
Step 4: the slurry obtained through step 3 is dried at 60 DEG C and adds alcohol after after 20 ~ 30h and carry out breakdown of emulsion;
Step 5: adopt the mode roll-in of hot-rolling pressure to go out the rete that thickness is 0.2 ~ 1.0mm in the slurry obtained through step 4;
Step 6: rete is compressed 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 (KetjenBlack).
Aforesaid dispersant is sodium carboxymethylcellulose (CMC).
Aforesaid binding agent is ptfe emulsion (PTFE).
Beneficial effect of the present invention:
The present invention determines technology prepared by a kind of lithium fluorocarbon cell positive electrode, for the water-soluble poor problem of existing base material fluorographite, dispersed with stirring is carried out by introducing dispersant sodium carboxymethylcellulose, and add conductive agent Ketjen black, compared with prior art, the lithium fluorocarbon cell positive electrode prepared 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 illustrates:
Fig. 1 is the discharge curve of the lithium fluorocarbon battery prepared through the inventive method.
embodiment:
Embodiment:
A preparation method for lithium fluorocarbon cell positive electrode, it comprises the following steps:
0.5h is stirred by adding sodium carboxymethylcellulose CMC in the mixed liquor of pure water and polytetrafluoroethylene PTFE emulsion, add again through grind and cross 200 order molecular sieves Ketjen black KetjenBlack stir 0.5h, add fluorographite afterwards and stir 1h, 60 DEG C, the slurry obtained adds alcohol and carry out breakdown of emulsion, and roll-in goes out the rete of desired thickness after drying 24h, thickness can between 0.2 ~ 1.0mm, rete is compressed on nickel screen, uses celgard barrier film, be assembled into pole plate group together with cathode of lithium.With plastic-aluminum packaging film encapsulation, after injecting 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.
Fig. 1 is the discharge curve of the lithium fluorocarbon battery prepared through the inventive method, show in figure: the flexible-packed battery of rated capacity 6Ah discharges with 200mA under normal temperature (25 ± 5 DEG C), voltage cut-off is to 1.5V, calculating its specific energy is 370Wh/kg, compared with existing battery, this battery known has higher specific energy.

Claims (5)

1. a preparation method for lithium fluorocarbon cell positive electrode, process materials comprises base material, conductive agent, dispersant and binding agent, and 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 grind and cross 200 order molecular sieves conductive agent stir;
Step 3: add base material and stir in mixed liquor;
Step 4: add alcohol after the slurry obtained through step 3 is dried 20 ~ 30h at 60 DEG C and carry out breakdown of emulsion;
Step 5: adopt the mode roll-in of hot-rolling pressure to go out the rete that thickness is 0.2 ~ 1.0mm in the slurry obtained through step 4;
Step 6: rete is compressed on nickel screen collector;
Described base material, dispersant, binding agent and conductive agent mass ratio are respectively 90:1.5:4:4.5;
Described alcohol and binding agent volume ratio are 1:50.
2. the preparation method of a kind of lithium fluorocarbon cell positive electrode according to claim 1, is characterized in that: described base material is fluorographite.
3. the preparation method of a kind of lithium fluorocarbon cell positive electrode according to claim 1, is characterized in that: described conductive agent is Ketjen black.
4. the preparation method of a kind of lithium fluorocarbon cell positive electrode according to claim 1, is characterized in that: described dispersant is sodium carboxymethylcellulose.
5. the preparation method of a kind of lithium fluorocarbon cell positive electrode according to claim 1, is characterized in that: described binding agent is ptfe emulsion.
CN201310617270.2A 2013-11-29 2013-11-29 The preparation method of lithium fluorocarbon cell positive electrode Active CN103594687B (en)

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Families Citing this family (9)

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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
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
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

Citations (10)

* Cited by examiner, † Cited by third party
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
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4510912B2 (en) * 2007-09-06 2010-07-28 パナソニック株式会社 Non-aqueous electrolyte battery

Patent Citations (10)

* Cited by examiner, † Cited by third party
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
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

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