CN104377349A - Lithium-embedded electrode material, preparation method thereof, electrode, and battery - Google Patents

Lithium-embedded electrode material, preparation method thereof, electrode, and battery Download PDF

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Publication number
CN104377349A
CN104377349A CN201310352475.2A CN201310352475A CN104377349A CN 104377349 A CN104377349 A CN 104377349A CN 201310352475 A CN201310352475 A CN 201310352475A CN 104377349 A CN104377349 A CN 104377349A
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Prior art keywords
electrode material
lithium
embedding lithium
lithium electrode
embedding
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CN201310352475.2A
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Chinese (zh)
Inventor
陈璞
陈渊
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Positec Power Tools Suzhou Co Ltd
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Positec Power Tools Suzhou Co Ltd
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Priority to CN201310352475.2A priority Critical patent/CN104377349A/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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/386—Silicon or alloys based on silicon
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • 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
    • 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
    • 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

Abstract

The invention belongs to the field of battery, and specifically discloses a preparation method of a lithium-embedded electrode material. The preparation method comprises the following steps: rolling and pressing a carrier membrane, which is provided stabilized lithium powder on the surface, on an electrode material to be embedded with lithium, and then contacting the electrode material with electrolyte to make the stabilized lithium powder and the electrode material to carry out self-discharge. The invention further discloses a lithium-embedded electrode material obtained through the method mentioned above, and an electrode and battery containing the lithium-embedded electrode material. A carrier membrane provided with stabilized lithium powder is adopted to replace the conventional suspension liquid, which is prepared on site and is not easy for transportation and preservation.

Description

Embedding lithium electrode material and preparation method thereof, electrode, battery
Technical field
The invention belongs to field of batteries, be specifically related to a kind of preparation method and embedding lithium electrode material, electrode, battery of embedding lithium electrode material.
Background technology
At present, in lithium ion battery, negative material mostly is carbon-based material, silica-base material, and these materials directly can not deviate from lithium ion; Adopt the lithium ion battery that these materials are made, its capacity depends on the quantity of the available lithium ion of positive electrode substantially.When in positive electrode containing lithium or scarce lithium time, cause can not form battery or battery capacity is very low, therefore, this strongly limits the selection of positive electrode.
In addition, lithium ion battery is in first time charge and discharge process, SEI film can be formed in negative terminal surface, and formed SEI film need consume lithium ion, and this part lithium ion can not return to positive pole, this causes lithium ion available in lithium ion battery to reduce, and then causes the active volume of lithium ion battery to reduce, and the capacity of loss is called irreversible capacity.After the first discharge and recharge of lithium ion battery, generally about lose the capacity of 10%-20%.
Above-mentioned two situations, eventually its reason is exactly that lithium ion available in lithium ion battery is less.
There is document illustration, by the mode of the surface configuration metallic lithium layer at negative pole, increase lithium ion available in lithium ion battery, thus reach the object reducing lithium ion battery irreversible capacity.But this mode Lithium-ion embeding is uneven, and easily forms Li dendrite, causes battery to there is potential safety hazard.In addition, metallic lithium layer adopts common lithium metal, and common lithium metal is very active and inflammable, is difficult to stable depositing, must be kept in particular surroundings, which greatly limits such scheme industrially application implementation.
Summary of the invention
Technical problem to be solved by this invention is, increasing lithium ion battery in prior art can by the method for lithium ion, there is potential safety hazard and industrial implementation is poor.
The invention provides a kind of preparation method of embedding lithium electrode material, described preparation method comprises the following steps: the carrier film with stabilisation metallic lithium powder be rolled into and treat on embedding lithium electrode material, then will treat that embedding lithium electrode material and electrolyte contacts make stabilisation metallic lithium powder and treat that embedding lithium electrode material forms micro cell and discharges.
Preferably, treat described in that embedding lithium electrode material is graphite or silicon.
Preferably, treat that the time of contact of embedding lithium electrode material and electrolyte is 4 ~ 20 hours.
Preferably, described stabilisation metallic lithium powder and describedly treat that embedding lithium electrode material meets following relation:
n 1=n 2×α×β，
Wherein, n 1for the amount of substance of stabilisation metallic lithium powder, n 2for treating the amount of substance of embedding lithium electrode material, α is the saturated embedding lithium number treating embedding lithium electrode material, 0.6 < β < 0.9.
More preferably, β=0.8.
Preferably, the particle diameter of described stabilisation metallic lithium powder is less than 60 μm.
Preferably, described carrier film is hard resin film.
Preferably, described carrier film is polypropylene screen.
Preferably, the pressure of described roll extrusion is 5 × 10 5~ 2 × 10 8pa.
Preferably, described electrolyte comprises lithium salts and organic solvent.
Present invention also offers a kind of embedding lithium electrode material, it is obtained by preparation method provided by the present invention.
Present invention also offers a kind of electrode, it comprises embedding lithium electrode material provided by the present invention.
Present invention also offers a kind of battery, it comprises electrode provided by the present invention.
Compared with prior art, the preparation method of embedding lithium electrode material of the present invention, effectively can increase available lithium ion in lithium ion battery, thus effectively enhance the selectivity of positive electrode, and reduces the irreversible capacity of lithium ion battery.
Accompanying drawing explanation
Fig. 1 is the embedding lithium electrode material of embodiment 1 and embodiment 2 and the XRD figure of pure graphite.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of preparation method of embedding lithium electrode material, comprise the following steps: the carrier film with stabilisation metallic lithium powder is rolled into and treats on embedding lithium electrode material, then will treat that embedding lithium electrode material and electrolyte contacts make stabilisation metallic lithium powder and treat that embedding lithium electrode material forms micro cell and discharges.
Wherein, stabilisation metallic lithium powder (English: stabilized lithium powder, to be called for short SLMP) is product known in those skilled in the art, can oneself prepare, also can by commercially available.
Stabilisation metallic lithium powder, namely has one deck passivation layer or protective layer on the surface of metallic lithium powder, and passivation layer or protective layer make inner metallic lithium powder isolate with oxygen or moisture, reduce the activity of metallic lithium powder.Stabilisation metallic lithium powder can stably exist in industrial drying plant.
Stabilisation metallic lithium powder can be the stable metallic lithium powder of the metallic lithium powder of oxygen passivation, carbon dioxide passivating metallic lithium powder, the metallic lithium powder of fluorine passivation or wax.The present invention preferably adopts the metallic lithium powder of oxygen passivation.
Stabilisation metallic lithium powder exists with the form of fine-powder, and preferably, its particle diameter, for being less than 60 μm, being more preferably and being less than 40 μm.
The effect of carrier film is transferred to by stabilisation metallic lithium powder to treat on embedding lithium electrode material.
Carrier film can be synthesis or semisynthetic amorphous solid resin molding, cellulose membrane or diaphragm material.The present invention preferably adopts hard resin film.Wherein hard resin film includes but not limited to polypropylene screen, polyethylene film or polyester film.More preferably, the present invention adopts polypropylene screen.
The surface of carrier film can also be added and be changed carrier film to the additive of stabilisation metallic lithium powder affinity, or does to the surface of carrier film the surface treatment changing affinity, such as, make corona treatment to polypropylene screen surface.
The thickness of the present invention to carrier film is not particularly limited, preferably, and the thickness 10-200 μm of carrier film.
With the carrier film of stabilisation metallic lithium powder, can prepare in several ways.Such as can pass through spraying, coating, printing, application, impregnating mode by stabilisation metallic lithium powder deposition on a carrier film, form the carrier film with stabilisation metallic lithium powder.Certainly, the HCS Flow Technique of high deposited at rates and solvent-free deposition, air-flow technology etc. can also be used, utilize mechanical force by stabilisation metallic lithium powder deposition on a carrier film, form the carrier film with stabilisation metallic lithium powder.
Treat embedding lithium electrode material, refer to the electrode material with embedding lithium activity, it can embed lithium ion, and reversible deviate from the electrode material of lithium ion.
Treat that embedding lithium electrode material can be non-lithiated electrode material or can lithiated electrode material further.
Non-lithiated electrode material, it can only embed lithium ion, can not deviate from lithium ion.Non-lithiated electrode material is selected from carbon-based material, silica-base material, tin-based material, the oxide of vanadium, the oxide, metal fluoride, nano transition metal oxides material etc. of manganese.
Wherein, carbon-based material includes but not limited to graphite, carbon nano-tube, Graphene, carbon fiber, amorphous carbon, MCMB.
Wherein, silica-base material includes but not limited to the oxide of elemental silicon, silicon alloy, Si-C composite material, silicon.
Wherein, tin-based material includes but not limited to oxide, the pink salt of ashbury metal, tin.
Can lithiated electrode material further, it both can deviate from lithium ion, can also continue to embed lithium ion.Such as LiMn 2o 4.
Of the present inventionly treat the preferred graphite of embedding lithium electrode material or silicon.
Stabilisation metallic lithium powder of the present invention with treat that embedding lithium electrode material meets following relation:
n 1=n 2×α×β，
Wherein, n 1for the amount of substance of stabilisation metallic lithium powder, n 2for treating the amount of substance of embedding lithium electrode material, α is the saturated embedding lithium number treating embedding lithium electrode material, 0.6 < β < 0.9.
More preferably, β is 0.8.
Wherein, saturated embedding lithium number is concept known in those skilled in the art, and refer to reach embedding lithium saturation condition, every mole of material can embed the molal quantity of lithium ion.Such as every mole of V 2o 5maximumly embed 3mol lithium ion, therefore V 2o 5saturated embedding lithium number be 3; Every mole of Si is maximum embeds 5.5mol lithium ion, therefore the saturated embedding lithium number of Si is 5.5; Every mole of Li 4ti 5o 12maximumly embed 3mol lithium ion, therefore Li 4ti 5o 12saturated embedding lithium number be 3.
Stabilisation metallic lithium powder with treat that embedding lithium electrode material meets above-mentioned relation, can avoid, at the Surface Creation Li dendrite treating embedding lithium electrode material, improving the security performance of embedding lithium electrode material; And effectively promote the quantity that embedding lithium electrode material can deviate from lithium ion.
During roll extrusion, treat that pure can be treated the tabular that embedding lithium electrode material is made or sheet form (such as graphite cake, silicon chip) roll extrusion by embedding lithium electrode material, can also will treat that embedding lithium electrode material invests the form roll extrusion on carrier board.
Being transferred to from carrier film by stabilisation metallic lithium powder by the mode of roll extrusion treats embedding lithium electrode material, and is treating that the surface of embedding lithium electrode material forms the continuous or discrete layer of lithium metal.
The pressure of roll extrusion is preferably 5 × 10 5~ 2 × 10 8pa.
Preferably, roll extrusion is carried out under the dry air of water content lower than 50ppm.
The present invention preferably after rolling, removes carrier film.
Electrolyte provides lithium metal and the reaction medium treating the self discharge of embedding lithium electrode material.
After embedding lithium electrode material contacts electrolyte together with lithium metal, owing to treating that embedding lithium electrode material and lithium metal contact with each other, form micro cell and start self discharge reaction; Wherein micro cell just very treat embedding lithium electrode material, negative pole is lithium metal, the electrolyte that namely electrolyte of micro cell add.The principle of self discharge reaction is: lithium metal loses electronics, is oxidized to lithium ion, and lithium ion enters in electrolyte; Lithium-ion embeding simultaneously in electrolyte, to treating in embedding lithium electrode material, treats that embedding lithium electrode material obtains electronics and is reduced.Along with self discharge reaction is constantly carried out, lithium ion constantly embeds to be treated in embedding lithium electrode material, treats that in embedding lithium electrode material, lithium content constantly increases, until lithium metal runs out of, or treats that in embedding lithium electrode material, lithium content is saturated.
Electrolyte comprises organic solvent and dissolves in organic solvent and the electrolytic salt ionized.
Wherein, electrolyte can contain lithium ion, also can not contain lithium ion.Preferably, electrolyte of the present invention contains lithium ion, and namely electrolyte comprises lithium salts and organic solvent.
Lithium salts can be the various lithium salts used in lithium-ion battery electrolytes, such as LiPF 6, LiAsF 6, LiBF 4, LiClO 4, di-oxalate lithium borate, LiODFB, trifluoromethyl sulfonic acid lithium, two (trimethyl fluoride sulfonyl) imine lithium etc.
Organic solvent can be the various organic solvents used in lithium-ion battery electrolytes, such as vinyl carbonate EC, propylene carbonate PC, butylene carbonic ester BC, carbonic acid first butyl ester BMC, ethyl butyl carbonate BEC, dibutyl carbonate DBC, diethyl carbonate DEC, dimethyl carbonate DMC, dimethyl sulfoxide (DMSO) DMSO, methyl ethyl carbonate EMC, dimethoxy-ethane DME, tetrahydrofuran THF etc.
In order to optimize the chemical property of embedding lithium electrode material, can according to actual conditions, electrolyte can also comprise additive.Such as increase the additive acetyl ethamine of electrolytic conductivity.
Under a preferred implementation, electrolyte of the present invention is lithium ion battery electrolyte used.
Wherein, treat the way of contact of embedding lithium electrode material and electrolyte, can be by roll extrusion after treat that embedding lithium electrode material soaks in the electrolytic solution, can also be electrolyte is added drop-wise to treat on embedding lithium electrode material after roll extrusion, after making electrolyte fully infiltrate roll extrusion, treat embedding lithium electrode material.
Under preferable case, treat that the time of contact of embedding lithium electrode material and electrolyte is 4 ~ 20 hours, lithium metal can being guaranteed like this and treat that embedding lithium electrode material fully reacts, making lithium metal all be converted into Lithium-ion embeding to treating in embedding lithium electrode material.
More preferably, the time of contact of electrolyte is 12 hours.
Reaction temperature does not have particular/special requirement, preferably at room temperature carries out.
Utilize preparation method of the present invention to prepare positive electrode, the range of choice of positive electrode can be expanded; Utilize preparation method of the present invention to prepare negative material, effectively can reduce the irreversible capacity of lithium ion battery.
The present invention adopts carrier film, instead of adopts suspension mode, and suspension can be avoided so now will to join the shortcoming of existing painting, and suspension is unfavorable for transport, preserves.The most important thing is, by with carrier film, be easy to obtain homogeneous embedding lithium electrode material, improve the chemical property of embedding lithium electrode material.
The present invention passes through stabilisation metallic lithium powder and treats the mode that the self discharge of embedding lithium electrode material is reacted, and prepares embedding lithium electrode material.In the self discharge of battery assembling advance row, avoid change in volume when embedding lithium ion and, on the impact of electrode structure, can not the problems such as powder of detached be caused.Battery assembling advance row self discharge in addition, other side reaction that self discharge can be avoided to cause is to the pollution of battery and damage.
Present invention also offers a kind of embedding lithium electrode material, it is obtained by preparation method provided by the present invention.
Containing the lithium ion embedded in embedding lithium electrode material, and these lithium ions can reversible deviating from from embedding lithium electrode material.
A kind of electrode, it comprises embedding lithium electrode material provided by the present invention.
Electrode also comprises collector, and described embedding lithium electrode material load on a current collector.
Collector only as the carrier of electrical conductivity and collection, does not participate in electrochemical reaction.
In a particular embodiment, according to actual conditions, also may need to add conductive agent and on a current collector, promote electrode performance with binding agent load together with embedding lithium electrode material.
Conductive agent can be selected from conducting polymer, activated carbon, Graphene, carbon black, graphite, carbon fiber, metallic fiber, metal dust and sheet metal one or more.
Binding agent can be selected from polyethylene oxide, polypropylene oxide, the mixture of a kind of or above-mentioned polymer in polyacrylonitrile, polyimides, polyester, polyethers, fluorinated polymer, poly-divinyl polyethylene glycol, polyethyleneglycol diacrylate, glycol dimethacrylates and derivative.
A kind of battery, it comprises electrode provided by the present invention.
Battery also comprises corresponding with electrode provided by the present invention to electrode, and battery electrolyte.If electrode provided by the invention is as positive pole, then to electrode as negative pole; If electrode provided by the invention is as negative pole, then to electrode as positive pole.
Can be the electrochemical reaction based on lithium ion deintercalation to electrode, can also be the electrochemical reaction based on other, such as deposition-solubilizing reaction.The material that positive pole in battery, negative pole can all adopt the deintercalation based on lithium ion to react.Also the lithium ion battery containing intercalation materials of li ions or lithium-sulfur cell can be prepared.Wherein, the positive electrode of lithium-sulfur cell is the composite material of sulphur and polyacrylonitrile.
Below in conjunction with specific embodiment, the present invention will be further elaborated and explanation.
Embodiment 1
Carrier film with stabilisation metallic lithium powder: the surface density of stabilisation metallic lithium powder is 0.4mg/cm 2, carrier film is polypropylene InteTopp tMaA type film, area 50cm 2.
Treat embedding lithium electrode material: 50cm 2graphite flake (heavy 255mg).
Electrolyte: 1mol/L LiPF 6/ EC+DEC (1:1).
In the drying plant of water content lower than 50ppm, will the carrier film of stabilisation metallic lithium powder be had and treat embedding lithium electrode material on roller press 10 7roll extrusion under Pa, makes stabilisation metallic lithium powder transfer to and treats, on embedding lithium electrode material, then to remove carrier film.To treat that embedding lithium electrode material to immerse in electrolyte 12 hours after roll extrusion again, then dryly remove electrolyte.
The embedding lithium electrode material obtained, is denoted as A1.
Embodiment 2
Carrier film with stabilisation metallic lithium powder: the surface density of stabilisation metallic lithium powder is 0.25mg/cm 2, carrier film is polypropylene InteTopp tMaA type film, area 50cm 2.
Treat embedding lithium electrode material: 50cm 2graphite flake (heavy 250mg).
Electrolyte: 1mol/L LiPF 6/ EC+DEC (1:1).
In the drying plant of water content lower than 50ppm, will the carrier film of stabilisation metallic lithium powder be had and treat embedding lithium electrode material on roller press 10 7roll extrusion under Pa, makes stabilisation metallic lithium powder transfer to and treats, on embedding lithium electrode material, then to remove carrier film.To treat that embedding lithium electrode material to immerse in electrolyte 12 hours after roll extrusion again, then dryly remove electrolyte.
The embedding lithium electrode material obtained, is denoted as A2.
Embodiment 3
Carrier film with stabilisation metallic lithium powder: the surface density of stabilisation metallic lithium powder is 0.24mg/cm 2, carrier film is polypropylene InteTopp tMaA type film, area 50cm 2.
Treat embedding lithium electrode material: 50cm 2silicon alloy film.
Electrolyte: 1mol/L LiPF 6/ EC+DEC (1:1).
In the drying plant of water content lower than 50ppm, will the carrier film of stabilisation metallic lithium powder be had and treat embedding lithium electrode material on roller press 10 7roll extrusion under Pa, makes stabilisation metallic lithium powder transfer to and treats, on embedding lithium electrode material, then to remove carrier film.To treat that embedding lithium electrode material to immerse in electrolyte 12 hours after roll extrusion again, then dryly remove electrolyte.
The embedding lithium electrode material obtained, is denoted as A3.
Embodiment 4-6
Sulphur polyacrylonitrile composite material (sulphur is 3:1 with the mass ratio of polyacrylonitrile), conductive agent acetylene black, binding agent SBR and CMC are mixed in water according to mass ratio 90:5:2.5:2.5, form uniform anode sizing agent, slurry is coated in plus plate current-collecting body (50 μm of stainless steel cloths), is carried out compressing tablet subsequently.
The embedding lithium electrode material of A1-A3 is adopted to make negative pole.
Barrier film is AGM fibreglass diaphragm, and barrier film is suitable with positive pole with negative pole size.
Positive pole, negative pole and membrane layer stacked group are dressed up battery core, loads in housing, then inject battery electrolyte respectively, sealing, is assembled into button cell.The battery obtained, is denoted as B1-B3 respectively.
Performance test:
XRD tests:
Pure graphite and A1 and A2 are done XRD test, test result is shown in Fig. 1.
As can be seen from Figure 1, the XRD collection of illustrative plates of pure graphite and A1 and A2 is different, and this illustrates that it has the lithium of different content.Thus prove that preparation method of the present invention can control lithium content in embedding lithium electrode material.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. the preparation method of an embedding lithium electrode material, described preparation method comprises the following steps: the carrier film with stabilisation metallic lithium powder be rolled into and treat on embedding lithium electrode material, then will treat that embedding lithium electrode material and electrolyte contacts make stabilisation metallic lithium powder and treat that embedding lithium electrode material forms micro cell and discharges.
2. the preparation method of embedding lithium electrode material according to claim 1, is characterized in that: described in treat that embedding lithium electrode material is graphite or silicon.
3. the preparation method of embedding lithium electrode material according to claim 1, is characterized in that: described in treat that the time of embedding lithium electrode material and electrolyte contacts is 4 ~ 20 hours.
4. the preparation method of embedding lithium electrode material according to claim 1, is characterized in that: described stabilisation metallic lithium powder and describedly treat that embedding lithium electrode material meets following relation:
n 1=n 2×α×β，
Wherein, n 1for the amount of substance of stabilisation metallic lithium powder, n 2for treating the amount of substance of embedding lithium electrode material, α is the saturated embedding lithium number treating embedding lithium electrode material, 0.6 < β < 0.9.
5. the preparation method of embedding lithium electrode material according to claim 1, is characterized in that: described carrier film is hard resin film.
6. the preparation method of embedding lithium electrode material according to claim 1, is characterized in that: the pressure of described roll extrusion is 5 × 10 5~ 2 × 10 8pa.
7. the preparation method of embedding lithium electrode material according to claim 1, is characterized in that: described electrolyte comprises lithium salts and organic solvent.
8. an embedding lithium electrode material, is characterized in that, described embedding lithium electrode material is obtained by the preparation method of embedding lithium electrode material described in claim 1-7.
9. an electrode, is characterized in that, described electrode comprises embedding lithium electrode material according to claim 8.
10. a battery, is characterized in that, described battery electrode according to claim 9.
CN201310352475.2A 2013-08-14 2013-08-14 Lithium-embedded electrode material, preparation method thereof, electrode, and battery Pending CN104377349A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104868097A (en) * 2015-05-13 2015-08-26 北京化工大学 Lithium-sulfur battery cathode material and preparation method thereof
CN108123106A (en) * 2016-11-28 2018-06-05 东莞新能源科技有限公司 Lithium-rich anode material and preparation method thereof and serondary lithium battery
CN113594421A (en) * 2021-06-25 2021-11-02 燕山大学 Preparation method and application of electrolyte-treated laboratory potassium metal sheet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080274408A1 (en) * 2004-06-24 2008-11-06 Christine Ruth Jarvis Anode for Lithium Ion Cell
WO2011153105A1 (en) * 2010-06-02 2011-12-08 The Regents Of The University Of California Si composite electrode with li metal doping for advanced lithium-ion battery
CN102668182A (en) * 2009-12-03 2012-09-12 Fmc公司 Finely deposited lithium metal powder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080274408A1 (en) * 2004-06-24 2008-11-06 Christine Ruth Jarvis Anode for Lithium Ion Cell
CN102668182A (en) * 2009-12-03 2012-09-12 Fmc公司 Finely deposited lithium metal powder
WO2011153105A1 (en) * 2010-06-02 2011-12-08 The Regents Of The University Of California Si composite electrode with li metal doping for advanced lithium-ion battery

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104868097A (en) * 2015-05-13 2015-08-26 北京化工大学 Lithium-sulfur battery cathode material and preparation method thereof
CN104868097B (en) * 2015-05-13 2018-03-30 北京化工大学 A kind of lithium-sulfur cell negative material and preparation method thereof
CN108123106A (en) * 2016-11-28 2018-06-05 东莞新能源科技有限公司 Lithium-rich anode material and preparation method thereof and serondary lithium battery
CN113594421A (en) * 2021-06-25 2021-11-02 燕山大学 Preparation method and application of electrolyte-treated laboratory potassium metal sheet
CN113594421B (en) * 2021-06-25 2022-08-16 燕山大学 Preparation method and application of electrolyte-treated laboratory potassium metal sheet

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