CN105428655A - Method for improving utilization rate of carbon negative electrode active substance - Google Patents
Method for improving utilization rate of carbon negative electrode active substance Download PDFInfo
- Publication number
- CN105428655A CN105428655A CN201511002403.0A CN201511002403A CN105428655A CN 105428655 A CN105428655 A CN 105428655A CN 201511002403 A CN201511002403 A CN 201511002403A CN 105428655 A CN105428655 A CN 105428655A
- Authority
- CN
- China
- Prior art keywords
- negative electrode
- carbon anode
- ion battery
- lithium ion
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- 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
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to the field of a lithium ion battery material, and especially relates to a method for improving utilization rate of a carbon negative electrode active substance. According to the invention, plasma is used for processing carbon negative electrode particles, the method comprises steps of using an inductively coupled plasma apparatus for pretreating the carbon negative electrode particles for 20-200 minutes, wherein an applied voltage is 50-220 V, and current is 50-500 mA. According to the method, plasma pre-treatment can be carried out on a carbon negative electrode material before preparation of a lithium ion battery negative electrode piece by using the carbon negative electrode, so that polarity of the carbon negative electrode surface is enhanced, wettability of the carbon negative electrode and an electrolyte can be enhanced, the utilization rate of the carbon negative electrode of the negative electrode piece can be increased, and effective capacity is increased.
Description
Technical field
The present invention relates to field of lithium ion battery material, particularly a kind of method improving Carbon anode active material utilization.
Background technology
For the lithium ion battery target of high-energy-density, improving both positive and negative polarity available capacity is one of effective way.No matter how, electrolyte all has very strong polarity to the concrete composition of lithium-ion battery electrolytes; But the surface polarity of carbon material used as anode is very low, such result is exactly that the wettability of negative pole and electrolyte is bad, electrolyte is difficult to the depths entering porous negative pole, will not become the active material that can not be utilized by the Carbon anode particle that electrolyte infiltrates, thus reduces the available capacity of electrode.
Improvement Carbon anode and the infiltrating important method of electrolyte are exactly the polarity strengthening carbon granule surface.Some improvement means comprise acid treatment, alkali treatment etc., these methods can effectively improve carbon granule surface polarity, shortcoming is: the carbon of process also needs reprocessing to clean residual treatment fluid, and while cost is high, treatment fluid strong acid or strong basicity also can cause production environment to worsen.
Summary of the invention
The object of this invention is to provide a kind of carbon negative pole material pretreatment technology, the wettability of Carbon anode and electrolyte can be improved, improve the method for the improvement Carbon anode active material utilization of Carbon anode available capacity.
First technical purpose of the present invention is achieved by the following technical programs:
Improve a method for Carbon anode active material utilization, it is characterized in that using plasma treatment Carbon anode particle, improve the polarity of Carbon anode particle surface.
The present invention use Carbon anode prepare lithium ion battery negative electrode before first to the plasma pre-treatment that carbon negative pole material carries out, object improves the polarity on Carbon anode surface, strengthen itself and the wettability of electrolyte, improve the utilance of cathode pole piece Carbon anode, improve available capacity.
As preferably, the concrete grammar of plasma treatment is used to be: carry out preliminary treatment with inductance coupled plasma device to Carbon anode particle, the processing time is 20-200 minute, and applying voltage is 50-220V, and electric current is 50-500mA.
The present invention is controlled by specific electric current and voltage, under certain hour, carry out plasma treatment, improves the polarity on Carbon anode surface; If voltage is too high or the processing time is oversize, then cost is higher, and may cause later stage Carbon anode unsteadiness in the electrolytic solution; If voltage is too little or the processing time is too short, then the polarity on Carbon anode surface is made to be difficult to increase.
As preferably, the process atmosphere using plasma treatment is oxygen or methacrylic acid, and gas pressure is 5-100Pa, and gas flow rate is 1-5L/min.
Adopt specific plasma treatment atmosphere, and control gas pressure and flow velocity, make plasma processing efficiency higher, thus the feasibility that Carbon anode surface polarity is increased improves.
A kind of Carbon anode adopting a kind of described method improving Carbon anode active material utilization to prepare gained prepares the preparation method of lithium ion battery negative electrode, its be by described Carbon anode and binding agent, conductive agent according to mass ratio (6-10): (0.8-1.5): (0.8-1.5) is applied on Copper Foil after being mixed to form slurry, obtains cathode pole piece after drying.
Through plasma pre-treatment, enhance carbon granule surface polarity, improve carbon negative pole material wettability in the electrolytic solution, and by the preparation method of specific lithium ion battery negative electrode, thus improve the available capacity of negative pole piece of battery.
As preferably, described binding agent is Kynoar.
As preferably, described conductive agent is SuperP.
As preferably, the mass ratio of described Carbon anode, binding agent, conductive agent is 8:1:1.
A kind of lithium ion battery negative electrode adopting the preparation method of described lithium ion battery negative electrode to prepare gained prepares the preparation method of lithium ion battery, it take lithium ion battery negative electrode as work electrode, be to electrode with lithium metal, be barrier film with Celgad, and use electrolyte to be assembled into 2032 button cells.
Through plasma pre-treatment, enhance carbon granule surface polarity, improve carbon negative pole material wettability in the electrolytic solution, and by the preparation method of specific lithium ion battery negative electrode, thus improve the available capacity of negative pole piece of battery; And further by the preparation method of specific lithium ion battery, make 2032 button cells of better performances.
As preferably, described electrolyte is LiPF
6/ EC+DEC, the concentration of described electrolyte is 1 mole often liter, wherein, LiPF
6be 1:1 with the volume ratio of (EC+DEC).Wherein, EC is ethylene carbonate, and DEC is diethyl carbonate.
Negative pole piece of battery of the present invention infiltrates in specific electrolyte, can improve performance of lithium ion battery.
In sum, the present invention has following beneficial effect: the present invention use Carbon anode prepare lithium ion battery negative electrode before first to the plasma pre-treatment that carbon negative pole material carries out, object improves the polarity on Carbon anode surface, strengthen the wettability of itself and electrolyte, improve the utilance of cathode pole piece Carbon anode, improve available capacity.
Embodiment
embodiment 1:
Utilize homemade inductance coupled plasma device to process under 50V voltage, 50mA electric current, the processing time is 20 minutes, and atmosphere is oxygen, and oxygen pressure is 5Pa, and gas flow rate is 1L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 335.0mAh/g.
embodiment 2:
Utilize homemade inductance coupled plasma device to process under 220V voltage, 500mA electric current, the processing time is 20 minutes, and atmosphere is oxygen, and oxygen pressure is 5Pa, and gas flow rate is 1L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 343.8mAh/g.
embodiment 3:
Utilize homemade inductance coupled plasma device to process under 50V voltage, 200mA electric current, the processing time is 50 minutes, and atmosphere is oxygen, and oxygen pressure is 10Pa, and gas flow rate is 3L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 333.5mAh/g.
embodiment 4:
Utilize homemade inductance coupled plasma device to process under 200V voltage, 200mA electric current, the processing time is 100 minutes, and atmosphere is oxygen, and oxygen pressure is 20Pa, and gas flow rate is 3L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 342.0mAh/g.
embodiment 5:
Utilize homemade inductance coupled plasma device to process under 50V voltage, 100mA electric current, the processing time is 100 minutes, and atmosphere is oxygen, and oxygen pressure is 20Pa, and gas flow rate is 3L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 337.1mAh/g.
embodiment 5:
Utilize homemade inductance coupled plasma device to process under 100V voltage, 300mA electric current, the processing time is 200 minutes, and atmosphere is oxygen, and oxygen pressure is 100Pa, and gas flow rate is 5L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 357.0mAh/g.
embodiment 6:
Utilize homemade inductance coupled plasma device to process under 220V voltage, 100mA electric current, the processing time is 200 minutes, and atmosphere is oxygen, and oxygen pressure is 100Pa, and gas flow rate is 5L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 362.0mAh/g.
embodiment 7:
Utilize homemade inductance coupled plasma device to process under 50V voltage, 50mA electric current, the processing time is 20 minutes, and atmosphere is methacrylic acid, and its pressure is 5Pa, and gas flow rate is 1L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 331.0mAh/g.
embodiment 8:
Utilize homemade inductance coupled plasma device to process under 150V voltage, 50mA electric current, the processing time is 50 minutes, and atmosphere is methacrylic acid, and its pressure is 5Pa, and gas flow rate is 1L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 337.6mAh/g.
embodiment 9:
Utilize homemade inductance coupled plasma device to process under 150V voltage, 200mA electric current, the processing time is 100 minutes, and atmosphere is methacrylic acid, and its pressure is 20Pa, and gas flow rate is 5L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 346.0mAh/g.
embodiment 10:
Utilize homemade inductance coupled plasma device to process under 150V voltage, 500mA electric current, the processing time is 200 minutes, and atmosphere is methacrylic acid, and its pressure is 50Pa, and gas flow rate is 1L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 342.3mAh/g.
embodiment 11:
Utilize homemade inductance coupled plasma device to process under 220V voltage, 100mA electric current, the processing time is 200 minutes, and atmosphere is methacrylic acid, and its pressure is 100Pa, and gas flow rate is 1L/min.
After being disposed, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 365.0mAh/g.
1mol/LLiPF6/EC+DEC (1:1) is dripped on electrode slice for electrolysis drop one, utilizes microscopic examination contact angle, find large about about 30 degree; Adopt same process to be prepared into electrode the material with carbon element not doing plasma treatment, then an above-mentioned electrolyte is dripped on electrode slice, use microscopic examination contact angle, find to be approximately about 120 degree.It is stronger with wetability that is electrolyte that the test of contact angle confirms that the material with carbon element of plasma treatment has.
comparative example:
Do not do any pre-treatment and directly use Carbon anode, by Carbon anode and binding agent PVDF, conductive agent SuperP is applied on Copper Foil after being mixed to form slurry according to 8:1:1 mass ratio, cathode pole piece is obtained after drying, be to electrode with lithium metal, 1MLiPF6/EC+DEC (1:1) is electrolyte, Celgad barrier film, be assembled into 2032 button cells, under 0.1C multiplying power 0.4 ~ 0.0V scope, measure capacity of negative plates is 329.0mAh/g.Charge-discharge test is not carried out immediately after assembling button cell, after first battery being placed three days, to make the infiltration as far as possible between electrolyte and Carbon anode, then measuring capacity, be found to be 340.6mAh/g.
Result in comparative example confirms, cathode pole piece capacity does not give full play to, and is that meanwhile, plasma treatment fully can improve the wettability of carbon granule and electrolyte because electrolyte and the bad reason of negative pole carbon granule wettability.
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this specification, as long as but be all subject to the protection of Patent Law in right of the present invention.
Claims (9)
1. improve a method for Carbon anode active material utilization, it is characterized in that using plasma treatment Carbon anode particle, improve the polarity of Carbon anode particle surface.
2. a kind of method improving Carbon anode active material utilization according to claim 1, it is characterized in that the concrete grammar of use plasma treatment is: with inductance coupled plasma device, preliminary treatment is carried out to Carbon anode particle, processing time is 20-200 minute, applying voltage is 50-220V, and electric current is 50-500mA.
3. a kind of method improving Carbon anode active material utilization according to claim 2, it is characterized in that the process atmosphere using plasma treatment is oxygen or methacrylic acid, gas pressure is 5-100Pa, and gas flow rate is 1-5L/min.
4. the Carbon anode adopting a kind of method improving Carbon anode active material utilization described in any one of claim 1-3 claim to prepare gained prepares the preparation method of lithium ion battery negative electrode, it is characterized in that: by described Carbon anode and binding agent, conductive agent according to mass ratio (6-10): (0.8-1.5): (0.8-1.5) is applied on Copper Foil after being mixed to form slurry, obtains cathode pole piece after drying.
5. the preparation method of lithium ion battery negative electrode according to claim 4, is characterized in that: described binding agent is Kynoar.
6. the preparation method of lithium ion battery negative electrode according to claim 5, is characterized in that: described conductive agent is SuperP.
7. the preparation method of lithium ion battery negative electrode according to claim 6, is characterized in that: the mass ratio of described Carbon anode, binding agent, conductive agent is 8:1:1.
8. the lithium ion battery negative electrode adopting the preparation method of the lithium ion battery negative electrode described in any one of claim 4-7 claim to prepare gained prepares the preparation method of lithium ion battery, it is characterized in that: take lithium ion battery negative electrode as work electrode, be to electrode with lithium metal, be barrier film with Celgad, and use electrolyte to be assembled into 2032 button cells.
9. the preparation method of lithium ion battery according to claim 8, described electrolyte is LiPF
6/ EC+DEC, the concentration of described electrolyte is 1 mole often liter, wherein, LiPF
6be 1:1 with the volume ratio of (EC+DEC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002403.0A CN105428655A (en) | 2015-12-29 | 2015-12-29 | Method for improving utilization rate of carbon negative electrode active substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002403.0A CN105428655A (en) | 2015-12-29 | 2015-12-29 | Method for improving utilization rate of carbon negative electrode active substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105428655A true CN105428655A (en) | 2016-03-23 |
Family
ID=55506699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511002403.0A Pending CN105428655A (en) | 2015-12-29 | 2015-12-29 | Method for improving utilization rate of carbon negative electrode active substance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105428655A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363468A (en) * | 2021-06-24 | 2021-09-07 | 西北工业大学 | Modified hard carbon and modification method and application thereof |
| CN114695833A (en) * | 2022-03-01 | 2022-07-01 | 北京化工大学 | Lithium dendrite inhibition device, system and method for lithium metal battery negative electrode material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1131510A (en) * | 1997-07-11 | 1999-02-02 | Mitsubishi Chem Corp | Lithium secondary battery |
| CN1816927A (en) * | 2003-06-30 | 2006-08-09 | Tdk株式会社 | Carbon material for electrode and method for producing same, battery electrode and method for producing same, and battery and method for producing same |
| CN102610804A (en) * | 2012-03-31 | 2012-07-25 | 苏州大学 | Preparing method of negative electrode material for lithium ion battery, negative electrode of lithium ion battery, and lithium ion battery |
-
2015
- 2015-12-29 CN CN201511002403.0A patent/CN105428655A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1131510A (en) * | 1997-07-11 | 1999-02-02 | Mitsubishi Chem Corp | Lithium secondary battery |
| CN1816927A (en) * | 2003-06-30 | 2006-08-09 | Tdk株式会社 | Carbon material for electrode and method for producing same, battery electrode and method for producing same, and battery and method for producing same |
| CN102610804A (en) * | 2012-03-31 | 2012-07-25 | 苏州大学 | Preparing method of negative electrode material for lithium ion battery, negative electrode of lithium ion battery, and lithium ion battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363468A (en) * | 2021-06-24 | 2021-09-07 | 西北工业大学 | Modified hard carbon and modification method and application thereof |
| CN114695833A (en) * | 2022-03-01 | 2022-07-01 | 北京化工大学 | Lithium dendrite inhibition device, system and method for lithium metal battery negative electrode material |
| CN114695833B (en) * | 2022-03-01 | 2024-04-26 | 北京化工大学 | Lithium dendrite suppression device, system and method for negative electrode material of lithium metal battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | A conductive-dielectric gradient framework for stable lithium metal anode | |
| CN103956458B (en) | A kind of composite lithium ion battery anode and preparation method thereof and the application in all-solid-state battery | |
| CN102856532B (en) | A kind of preparation method of lithium-rich anode strip of lithium ion battery | |
| CN107068947A (en) | A kind of lithium-sulfur cell modification barrier film and preparation method thereof | |
| CN103474623B (en) | The preparation method of cathode pole piece and electrochemical appliance | |
| CN104953186A (en) | Preparation technology of lithium ion battery and negative lithium supplementing device | |
| CN108365269A (en) | A kind of coating processes of wet coating dielectric film coating machine | |
| CN108346778A (en) | A kind of electrochemical method preparing ultra-thin lithium an- ode | |
| CN107069133B (en) | A kind of method of lithium in recycling lithium cell cathode material | |
| CN103346292A (en) | Lithium-ion battery composite positive electrode as well as preparation method and application thereof | |
| CN103794756A (en) | Lithium-pre-embedded graphene pole piece, preparation method thereof and applications thereof | |
| CN103303907A (en) | Surface modification method for spherical graphite negative material | |
| CN102437369B (en) | Lithium ion battery | |
| CN105119012A (en) | Gel polymer electrolyte for lithium ion battery, and preparation method thereof | |
| CN103441242B (en) | The method of lithium ion battery negative material prepared by sisal carbon fiber based on chemical activation | |
| CN102610804A (en) | Preparing method of negative electrode material for lithium ion battery, negative electrode of lithium ion battery, and lithium ion battery | |
| CN105428655A (en) | Method for improving utilization rate of carbon negative electrode active substance | |
| CN107968219A (en) | Inorganic solid electrolyte film and preparation method thereof and inorganic full-solid battery | |
| CN103441280A (en) | Method for preparing negative pole material of lithium ion battery through hydrothermally activated sisal carbon fibers | |
| CN104852084A (en) | Preparation method of lithium ion battery polymer electrolyte | |
| CN105591104A (en) | Lithium iron phosphate electrode for alkaline secondary cell cathode and preparation method of lithium iron phosphate electrode | |
| CN106229543A (en) | A kind of lithium titanate battery and manufacture method | |
| CN102522559B (en) | Composite water-soluble bonding agent for preparing lithium ion battery | |
| CN107658449A (en) | A kind of preparation method of electrode material of lithium battery | |
| CN103855400A (en) | Lithium silicate ferrous/graphene composite and its preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160323 |
|
| RJ01 | Rejection of invention patent application after publication |