CN105070882A - Lithium-ion battery negative pole piece, and preparation method and application thereof - Google Patents
Lithium-ion battery negative pole piece, and preparation method and application thereof Download PDFInfo
- Publication number
- CN105070882A CN105070882A CN201510587116.4A CN201510587116A CN105070882A CN 105070882 A CN105070882 A CN 105070882A CN 201510587116 A CN201510587116 A CN 201510587116A CN 105070882 A CN105070882 A CN 105070882A
- Authority
- CN
- China
- Prior art keywords
- ionic cell
- anode plate
- lithium ionic
- lithium
- coating
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/133—Electrodes based on 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
- 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
-
- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
-
- 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)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a lithium-ion battery negative pole piece, and a preparation method and the application thereof. The surface of the base of the negative pole piece is coated with a coating which is prepared by a composite coating material; the composite coating material mainly comprises the following components in parts by weight: 20 to 40 parts of inorganic particles, 0.2 to 0.6 part of bonding agent, 4 to 8 parts of organic particles with swelling property, 0.4 to 0.8 part of plasticizer and 60 to 66 parts of solvent. Compared with the prior art, a novel bi-layer electrode material is adopted; an inorganic-organic protective layer is added on the basis of the conventional electrode material, so that the mechanical strength and the thermal stability of the battery are improved; the contact between a negative pole and a positive pole can be avoided under extreme conditions; therefore, a combustion phenomenon is avoided. Compared with the technology of a separation membrane which adopts an organic-inorganic layer, the purpose can be achieved by only coating a layer of coating at one end of the negative pole of the bi-layer electrode; the coating process is simplified; the cost is saved.
Description
Technical field
The present invention relates to a kind of anode plate for lithium ionic cell and its preparation method and application, belong to battery new material technology field.
Background technology
Lithium ion battery is owing to having higher mass energy density and volume energy density, higher operating voltage, wider serviceability temperature, long service life, environmentally friendly etc., be widely used mobile phone, notebook computer and various electric automobile, even on Aero-Space, wind and solar energy energy storage device.But lithium ion battery exists certain potential safety hazard when application, especially can there is vigorous combustion at high temperature with when encountering sharp-pointed body, huge harm can be brought in electrokinetic cell field.In order to address this problem, be necessary to provide a kind of polymer Li-ion battery with higher-security energy and mechanical performance, to promote security performance, the cycle performance of polymer Li-ion battery.
The Chinese patent application publication No. CN102610773A that on July 2nd, 2012 announces discloses a kind of polymer lithium cell diaphragm, and barrier film mainly comprises porous substrate, inorganic matter coating and organic substance coating.But in the technical scheme of this patent application, what adopt during coating coating is the organic solvent such as NMP, ethanol, inorganic coating and organic substance coating need separately coating in addition, operation relative complex.
The Chinese patent application publication No. 103441230A that on August 21st, 2013 announces discloses a kind of organic/inorganic composite porous isolating membrane, comprise porous substrate and organic/inorganic composite coating, patent above operation is relative wants simple, can once be coated with, and have employed water as solvent, but due to base material be the diaphragm material of Porous-Organic, coating dry run needs accurately to control, otherwise can cause the monolateral tilting of barrier film and the duct of easy blocking barrier film.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of anode plate for lithium ionic cell and its preparation method and application.
Technical scheme: for achieving the above object, the invention provides a kind of anode plate for lithium ionic cell, its substrate surface has the coating that composite coating material is made, described composite coating material primarily of following weight ratio component made by:
Inorganic particle 20-40 part, binding agent 0.2-0.6 part, the organic granular 4-8 part with swelling behavior, plasticizer 0.4-0.8 part and solvent 60-66 part.
As preferably, the thickness of described coating is 1um-100um.
Preferred as another kind, described inorganic particle is at least one in alundum (Al2O3), silicon dioxide, titanium dioxide, zirconium dioxide, ceria, calcium oxide, calcium carbonate and barium titanate, and its average grain diameter is 1-3 μm.
Preferred as another kind, described bonding agent is at least one in styrene-butadiene, Kynoar, carboxymethyl cellulose, polyvinylpyrrolidone, biasfluoroethylene-hexafluoropropylene polymer, polyacrylonitrile, sodium carboxymethylcellulose, butadiene-acrylonitrile polymer, polyacrylic acid, polymethyl acrylate, polyethyl acrylate and polyacrylic acid-styrene polymer;
As another kind preferably, there is described in organic at least one that can be in Kynoar, vinylidene fluoride-hexafluoropropylene copolymer, polyacrylonitrile, polyimides, acrylonitrile-butadiene copolymer, acrylonitrile-butadiene-styrene copolymer, polymethyl methacrylate, polymethyl acrylate, polyethyl acrylate, polyacrylic acid-styrol copolymer, dimethyl silicone polymer, Sodium Polyacrylate, sodium carboxymethylcellulose of swelling behavior.
Preferred as another kind, described plasticizer is at least one in hexone, n-butyl acetate, ring ethyl ketone, diacetone alcohol, isobutyrone, ethyl acetoacetate, dibutyl phthalate, ethylene carbonate, propene carbonate and dimethyl carbonate.
Preferred as another kind, described solvent is deionized water, and it does not infiltrate mutually with the porous substrate of described lithium-ion negative pole sheet;
Preferred as another kind, described composite coating material is primarily of made by following steps: plasticizer and the organic granular with swelling behavior are added solvent and stirs, add binding agent after fully swelling Deng organic granular to be uniformly mixed, inorganic particle is added after stirring, stir again, control slurry viscosity at 100mpa.s-5000mpa.s, to obtain final product.
Present invention also offers the preparation method of described anode plate for lithium ionic cell, comprise the following steps: first prepare anode plate for lithium ionic cell, then described composite coating material is coated on negative plate substrate surface, 40 DEG C of-200 DEG C of dryings, form coating, to obtain final product.
The present invention finally additionally provides described anode plate for lithium ionic cell and is preparing the application in lithium ion battery, prepare barrier film and positive plate, battery core is wound into described negative plate, barrier film is between adjacent positive plate and negative plate, and positive pole is drawn with aluminium pole ears spot welding, and negative pole is drawn with the spot welding of nickel lug, then battery core is placed in aluminium plastic packaging bag, inject electrolyte, encapsulation, to obtain final product.
The present invention has the inorganic material of high strength and high chemical stability by adding one deck, and make inorganic matter to be attached to electrode surface by organic adhesive property and swelling behavior, the effect of anode and cathode isolation layer can be played in electric core winding process.Coat application process of the present invention is simple, only needs to be coated with one deck composite bed at Electrode Negative end surface, needs the technique at barrier film two ends coating composite bed before simplifying.In actual applications, effectively can improve the stability of lithium dynamical battery, for the safety of the practical application of electrokinetic cell provides safeguard.
First, described coating, namely organic/inorganic composite porous coating at negative material on the surface, thus reduce barrier film by the risk of organic granular plug-hole, is conducive to the gas permeability improving barrier film.
Secondly, in the preparation method of composite coating, fully swelling organic granular effectively can improve the active force between negative material and inorganic material, improves the adhesion property of inorganic particle, is conducive to improving mechanical strength; In addition the method is once coated with and can prepares negative material coating, and technique is simple, mild condition, applicable volume production.In addition, in this preparation process, preferably adopt deionized water as solvent, and preferably porous substrate does not infiltrate mutually with deionized water.Because deionized water and porous substrate do not infiltrate mutually, reduce the risk of plug-hole thus to a greater degree, and good to environment, cost is low.
Finally, in described lithium ion battery electrochemical appliance, owing to have employed the negative material with organo-mineral complexing coating, barrier film does not need to process, remain barrier film itself good gas permeability, conductance, and make electrochemical appliance have good thermal stability, mechanical strength and non-oxidizability by negative pole coating; Organic granular fully swelling in this top layer material effectively can improve the active force between negative material and organic barrier film, improves the interfacial characteristics between negative pole and barrier film.The electrochemical appliance therefore with this negative material coating has solution deformability, stronger hardness and preferably chemical property.
Beneficial effect: compared with prior art; present invention employs novel two-layer electrode material; conventional electrode materials basis adds the inorganic organic protection layer of one deck; improve mechanical strength and the thermal stability of battery; the contact between anode and cathode can be evaded in extreme circumstances, thus avoid combustion phenomena occurs.Compare with the membrane technique of employing organic-inorganic layer, adopt two-layer electrode only to need to be coated with one deck in negative pole one end and just can reach object, simplify the technique of coating, saved cost.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
Comparative example:
The preparation of positive plate:
Cobalt acid lithium (positive active material), conductive agent superconduction carbon (Super-P), bonding agent Kynoar (PVDF) are mixed the lithium ion battery anode glue size making have certain viscosity in mass ratio at 96: 2.0: 2.0, slurry is coated in current collector aluminum foil, carries out colding pressing after drying at 85 DEG C and be cut into suitable size; Then soldering polar ear, makes based lithium-ion battery positive plate.
The preparation of negative plate:
Graphite and conductive agent superconduction carbon (Super-P), thickener sodium carboxymethylcellulose (CMC), bonding agent butadiene-styrene rubber (SBR) are made slurry in mass ratio at 96.5: 1.0: 1.0: 1.5, be coated on copper foil of affluxion body, dry at 85 DEG C and be cut into suitable size; Soldering polar ear, makes anode plate for lithium ionic cell.
The preparation of barrier film: get microporous polypropylene membrane Celgard2400 as barrier film.
The preparation of electrolyte: electrolyte and Huarong new chemical materials Co., Ltd of organic solvent Zhangjiagang Cathay provide.
The preparation of polymer Li-ion battery: above-mentioned positive plate, barrier film and negative plate are wound into battery core, barrier film is between adjacent positive plate and negative plate, and positive pole is drawn with aluminium pole ears spot welding, and negative pole is drawn with the spot welding of nickel lug; Then battery core is placed in aluminium plastic packaging bag, injects above-mentioned electrolyte, encapsulation, makes polymer Li-ion battery.
Embodiment 1:
The preparation of positive plate:
Cobalt acid lithium (positive active material), conductive agent superconduction carbon (Super-P), bonding agent Kynoar (PVDF) are mixed the lithium ion battery anode glue size making have certain viscosity in mass ratio at 96: 2.0: 2.0, slurry is coated in current collector aluminum foil, carries out colding pressing after drying at 85 DEG C and be cut into suitable size; Then soldering polar ear, makes based lithium-ion battery positive plate.
The preparation of negative plate:
Graphite and conductive agent superconduction carbon (Super-P), thickener sodium carboxymethylcellulose (CMC), bonding agent butadiene-styrene rubber (SBR) are made slurry in mass ratio at 96.5: 1.0: 1.0: 1.5, be coated on copper foil of affluxion body, dry at 85 DEG C and be cut into suitable size; Soldering polar ear, makes anode plate for lithium ionic cell.
Prepared by negative plate coating:
The dimethyl carbonate (plasticizer) of 0.6 mass parts, 6 mass parts Kynoar (PVDF) powder and 63 mass parts deionized waters are joined in double planetary mixer and stir 1 hour; Add the carboxymethyl cellulose of 0.4 mass parts, at 45 DEG C, mix 0.5 hour; Then add 30 mass parts aluminium oxide (average grain diameter is 2 μm), stirred at ambient temperature 2 hours, obtains organic/inorganic composite mortar.
Adopt the mode anticathode pole piece of silk screen printing to be coated with, 50 degree of oven for drying after being coated with, after dry, the thickness of coating has been 10um.
The preparation of barrier film: get microporous polypropylene membrane Celgard2400 as barrier film.
The preparation of electrolyte: electrolyte and Huarong new chemical materials Co., Ltd of organic solvent Zhangjiagang Cathay provide.
The preparation of polymer Li-ion battery: above-mentioned positive plate, barrier film and negative plate are wound into battery core, barrier film is between adjacent positive plate and negative plate, and positive pole is drawn with aluminium pole ears spot welding, and negative pole is drawn with the spot welding of nickel lug; Then battery core is placed in aluminium plastic packaging bag, injects above-mentioned electrolyte, encapsulation, makes polymer Li-ion battery.
Embodiment 2:
The same comparative example of positive plate, negative plate, barrier film, nonaqueous electrolytic solution, anode ring forming, only negative plate coating is taked as under type preparation:
The dimethyl carbonate (plasticizer) of 0.6 mass parts, 6 mass parts Kynoar (PVDF) powder and 63 mass parts deionized waters are joined in double planetary mixer and stir 1 hour; Add the carboxymethyl cellulose of 0.4 mass parts, at 45 DEG C, mix 0.5 hour; Then add 30 mass parts calcium carbonate (average grain diameter is 2 μm), stirred at ambient temperature 2 hours, obtains organic/inorganic composite mortar.
Adopt the mode anticathode pole piece of silk screen printing to be coated with, 50 degree of oven for drying after being coated with, after dry, the thickness of coating has been 12um.
Embodiment 3:
The same comparative example of positive plate, negative plate, barrier film, nonaqueous electrolytic solution, anode ring forming, only negative plate coating is taked as under type preparation:
The hexone of 0.4 mass parts, 4 mass parts polyacrylonitrile powder and 60 mass parts deionized waters are joined in double planetary mixer and stir 1 hour; Add the polymethyl acrylate of 0.2 mass parts, at 45 DEG C, mix 0.5 hour; Then add 20 mass parts calcium oxide (average grain diameter is 1 μm), stirred at ambient temperature 2 hours, obtains organic/inorganic composite mortar.
Adopt the mode anticathode pole piece of silk screen printing to be coated with, 50 degree of oven for drying after being coated with, after dry, the thickness of coating has been 1um.
Embodiment 4:
The same comparative example of positive plate, negative plate, barrier film, nonaqueous electrolytic solution, anode ring forming, only negative plate coating is taked as under type preparation:
The ring ethyl ketone of 0.8 mass parts, 8 mass parts polymethylmethacrylate powder and 66 mass parts deionized waters are joined in double planetary mixer and stir 1 hour; Add the sodium carboxymethylcellulose of 0.6 mass parts, at 45 DEG C, mix 0.5 hour; Then add 40 mass parts barium titanates (average grain diameter is 3 μm), stirred at ambient temperature 2 hours, obtains organic/inorganic composite mortar.
Adopt the mode anticathode pole piece of silk screen printing to be coated with, 50 degree of oven for drying after being coated with, after dry, the thickness of coating has been 100um.
Embodiment 5:
The same comparative example of positive plate, negative plate, barrier film, nonaqueous electrolytic solution, anode ring forming, only negative plate coating is taked as under type preparation:
The ethyl acetoacetate of 0.6 mass parts, 6 mass parts polymethyl acrylate powder and 63 mass parts deionized waters are joined in double planetary mixer and stir 1 hour; Add the polyvinylpyrrolidone of 0.4 mass parts, at 45 DEG C, mix 0.5 hour; Then add 30 mass parts silicon dioxide (average grain diameter is 2 μm), stirred at ambient temperature 2 hours, obtains organic/inorganic composite mortar.
Adopt the mode anticathode pole piece of silk screen printing to be coated with, 50 degree of oven for drying after being coated with, after dry, the thickness of coating has been 12um.
Experimental example battery performance test
The performance of lithium ion battery test of comparative example and embodiment 1 and 2 is as shown in table 1.
| Capability retention (%) | Thickness swelling (%) | |
| Comparative example | 81.2 | 24.5 |
| Embodiment 1 | 89.2 | 7.3 |
| Embodiment 2 | 88.7 | 7.8 |
Wherein: the test of the cycle performance of lithium ion battery: by lithium rechargeable battery at room temperature 0.5C multiplying power charging, 0.5C multiplying power discharging, carries out 500 circulations successively.Capability retention=(the room temperature capacity of the front battery of capacity/circulation of 500 rear batteries of circulation) × 100%.
High temperature storage is tested: lithium rechargeable battery to carry out 80 DEG C and stores for 30 days completely filling under (4.2V).Thickness swelling=(before and after storing, cell thickness changes/store the thickness of front battery core) × 100%
Lithium ion battery in embodiment 1-2, organic/inorganic composite coating drastically increases the cementability between pole piece and barrier film, thus inhibits the thermal expansion of battery, improves cycle performance and the high-temperature storage performance of battery.
Claims (10)
1. an anode plate for lithium ionic cell, is characterized in that, its substrate surface has the coating that composite coating material is made, described composite coating material primarily of following weight ratio component made by:
Inorganic particle 20-40 part, binding agent 0.2-0.6 part, the organic granular 4-8 part with swelling behavior, plasticizer 0.4-0.8 part and solvent 60-66 part.
2. anode plate for lithium ionic cell according to claim 1, is characterized in that, the thickness of described coating is 1um-100um.
3. anode plate for lithium ionic cell according to claim 1, it is characterized in that, described inorganic particle is at least one in alundum (Al2O3), silicon dioxide, titanium dioxide, zirconium dioxide, ceria, calcium oxide, calcium carbonate and barium titanate, and its average grain diameter is 1-3 μm.
4. anode plate for lithium ionic cell according to claim 1, it is characterized in that, described bonding agent is at least one in styrene-butadiene, Kynoar, carboxymethyl cellulose, polyvinylpyrrolidone, biasfluoroethylene-hexafluoropropylene polymer, polyacrylonitrile, sodium carboxymethylcellulose, butadiene-acrylonitrile polymer, polyacrylic acid, polymethyl acrylate, polyethyl acrylate and polyacrylic acid-styrene polymer.
5. anode plate for lithium ionic cell according to claim 1, it is characterized in that, described in there is swelling behavior organic granular be at least one in Kynoar, vinylidene fluoride-hexafluoropropylene copolymer, polyacrylonitrile, polyimides, acrylonitrile-butadiene copolymer, acrylonitrile-butadiene-styrene copolymer, polymethyl methacrylate, polymethyl acrylate, polyethyl acrylate, polyacrylic acid-styrol copolymer, dimethyl silicone polymer, Sodium Polyacrylate, sodium carboxymethylcellulose.
6. anode plate for lithium ionic cell according to claim 1, it is characterized in that, described plasticizer is at least one in hexone, n-butyl acetate, ring ethyl ketone, diacetone alcohol, isobutyrone, ethyl acetoacetate, dibutyl phthalate, ethylene carbonate, propene carbonate and dimethyl carbonate.
7. anode plate for lithium ionic cell according to claim 1, is characterized in that, described solvent is deionized water, and it does not infiltrate mutually with the porous substrate of described lithium-ion negative pole sheet.
8. anode plate for lithium ionic cell according to claim 1, it is characterized in that, described composite coating material is primarily of made by following steps: plasticizer and the organic granular with swelling behavior are added solvent and stirs, add binding agent after fully swelling Deng organic granular to be uniformly mixed, inorganic particle is added after stirring, stir again, control slurry viscosity at 100mpa.s-5000mpa.s, to obtain final product.
9. the preparation method of anode plate for lithium ionic cell described in any one of claim 1-8, is characterized in that, comprise the following steps: first prepare anode plate for lithium ionic cell, then described composite coating material is coated on negative plate substrate surface, 40 DEG C of-200 DEG C of dryings, form coating, to obtain final product.
10. anode plate for lithium ionic cell described in any one of claim 1-8 is preparing the application in lithium ion battery, it is characterized in that, prepare barrier film and positive plate, be wound into battery core with described negative plate, barrier film is between adjacent positive plate and negative plate, positive pole is drawn with aluminium pole ears spot welding, negative pole is drawn with the spot welding of nickel lug, then battery core is placed in aluminium plastic packaging bag, injects electrolyte, encapsulation, to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587116.4A CN105070882A (en) | 2015-09-15 | 2015-09-15 | Lithium-ion battery negative pole piece, and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587116.4A CN105070882A (en) | 2015-09-15 | 2015-09-15 | Lithium-ion battery negative pole piece, and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105070882A true CN105070882A (en) | 2015-11-18 |
Family
ID=54500202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510587116.4A Pending CN105070882A (en) | 2015-09-15 | 2015-09-15 | Lithium-ion battery negative pole piece, and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105070882A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018145350A1 (en) * | 2017-02-07 | 2018-08-16 | 上海璞泰来新能源科技股份有限公司 | Lithium battery with rapid detectable safety |
| CN109004170A (en) * | 2018-02-26 | 2018-12-14 | 宁德新能源科技有限公司 | Pole piece and lithium ion battery |
| CN111029533A (en) * | 2019-10-31 | 2020-04-17 | 北京泰丰先行新能源科技有限公司 | Metallic lithium surface protection method, negative electrode and metallic lithium secondary battery |
| CN112952290A (en) * | 2021-01-29 | 2021-06-11 | 江苏厚生新能源科技有限公司 | High-swelling-degree AFL (atomic fluorescence Spectrometry) and preparation method thereof, and high-swelling-degree AFL ceramic diaphragm |
| CN113363666A (en) * | 2021-05-06 | 2021-09-07 | 惠州锂威新能源科技有限公司 | Preparation method of diaphragm, diaphragm and electrochemical device applying diaphragm |
| CN115513410A (en) * | 2022-11-09 | 2022-12-23 | 江苏正力新能电池技术有限公司 | Negative pole piece with coating, preparation method thereof and lithium ion battery |
| WO2023050374A1 (en) * | 2021-09-30 | 2023-04-06 | 东莞新能源科技有限公司 | Adhesive structure, and electrochemical device and electronic device comprising same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917270A (en) * | 2006-09-01 | 2007-02-21 | 天津力神电池股份有限公司 | Method for increasing safe performance of square lithium ion secondary battery |
| CN101222072A (en) * | 2007-12-27 | 2008-07-16 | 深圳市创明电池技术有限公司 | Lithium ion secondary battery and method for improving its security |
| US20090042100A1 (en) * | 2007-08-10 | 2009-02-12 | Sanyo Electric Co., Ltd. | Non-aqueous electrolyte battery and negative electrode used therein |
| CN103441230A (en) * | 2013-08-21 | 2013-12-11 | 东莞新能源科技有限公司 | Organic/inorganic composite porous isolating membrane, preparation method thereof and electrochemical device |
-
2015
- 2015-09-15 CN CN201510587116.4A patent/CN105070882A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917270A (en) * | 2006-09-01 | 2007-02-21 | 天津力神电池股份有限公司 | Method for increasing safe performance of square lithium ion secondary battery |
| US20090042100A1 (en) * | 2007-08-10 | 2009-02-12 | Sanyo Electric Co., Ltd. | Non-aqueous electrolyte battery and negative electrode used therein |
| CN101222072A (en) * | 2007-12-27 | 2008-07-16 | 深圳市创明电池技术有限公司 | Lithium ion secondary battery and method for improving its security |
| CN103441230A (en) * | 2013-08-21 | 2013-12-11 | 东莞新能源科技有限公司 | Organic/inorganic composite porous isolating membrane, preparation method thereof and electrochemical device |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018145350A1 (en) * | 2017-02-07 | 2018-08-16 | 上海璞泰来新能源科技股份有限公司 | Lithium battery with rapid detectable safety |
| US11322774B2 (en) | 2018-02-26 | 2022-05-03 | Ningde Amperex Technology Limited | Electrode electrochemical device and electronic device |
| US10693181B2 (en) | 2018-02-26 | 2020-06-23 | Ningde Amperex Technology Limited | Electrode and lithium-ion battery |
| CN109004170A (en) * | 2018-02-26 | 2018-12-14 | 宁德新能源科技有限公司 | Pole piece and lithium ion battery |
| US11664528B2 (en) | 2018-02-26 | 2023-05-30 | Ningde Amperex Technology Limited | Electrode electrochemical device and electronic device |
| US12015118B2 (en) | 2018-02-26 | 2024-06-18 | Ningde Amperex Technology Limited | Electrode electrochemical device and electronic device |
| CN111029533A (en) * | 2019-10-31 | 2020-04-17 | 北京泰丰先行新能源科技有限公司 | Metallic lithium surface protection method, negative electrode and metallic lithium secondary battery |
| CN112952290A (en) * | 2021-01-29 | 2021-06-11 | 江苏厚生新能源科技有限公司 | High-swelling-degree AFL (atomic fluorescence Spectrometry) and preparation method thereof, and high-swelling-degree AFL ceramic diaphragm |
| CN112952290B (en) * | 2021-01-29 | 2022-06-17 | 江苏厚生新能源科技有限公司 | High-swelling-degree AFL (atomic fluorescence labeling), preparation method thereof and high-swelling-degree AFL ceramic diaphragm |
| CN113363666A (en) * | 2021-05-06 | 2021-09-07 | 惠州锂威新能源科技有限公司 | Preparation method of diaphragm, diaphragm and electrochemical device applying diaphragm |
| WO2023050374A1 (en) * | 2021-09-30 | 2023-04-06 | 东莞新能源科技有限公司 | Adhesive structure, and electrochemical device and electronic device comprising same |
| CN115513410A (en) * | 2022-11-09 | 2022-12-23 | 江苏正力新能电池技术有限公司 | Negative pole piece with coating, preparation method thereof and lithium ion battery |
| CN115513410B (en) * | 2022-11-09 | 2024-10-25 | 江苏正力新能电池技术股份有限公司 | Negative electrode plate with coating, preparation method thereof and lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111952663B (en) | Interface-modified solid-state garnet type battery and preparation method thereof | |
| CN105070882A (en) | Lithium-ion battery negative pole piece, and preparation method and application thereof | |
| CN108963327B (en) | Inorganic filler composite PEO solid electrolyte material, preparation method and all-solid-state battery | |
| CN109167012B (en) | Multilayer composite structure diaphragm, preparation method thereof and lithium-sulfur battery | |
| CN103904291B (en) | Aquo-lithium ion battery electrode and preparation method thereof, aquo-lithium ion battery | |
| CN110416637B (en) | Preparation method and application of solid-state battery buffer layer | |
| CN103904290B (en) | Aquo-lithium ion battery combination electrode and preparation method thereof, aquo-lithium ion battery | |
| CN108630985A (en) | A kind of high ionic conductivity solid electrolyte and preparation method thereof and its application in all-solid lithium-ion battery | |
| CN111430788A (en) | Composite solid electrolyte membrane, preparation method and solid lithium battery | |
| CN108232111A (en) | A kind of anode composite pole piece of solid state battery and preparation method thereof | |
| CN105470515A (en) | Positive electrode of safe lithium-ion power battery and lithium-ion battery comprising positive electrode | |
| CN105226289A (en) | A kind of based lithium-ion battery positive plate and its preparation method and application | |
| JP2013187196A (en) | Polymer li-ion battery and separator thereof | |
| Dai et al. | A solid state energy storage device with supercapacitor–battery hybrid design | |
| CN105470564A (en) | Solid electrolyte membrane, preparation method of solid electrolyte membrane and lithium ion battery | |
| CN104124414A (en) | Composite electrode plate of lithium ion battery, preparation method of composite electrode plate and lithium ion battery | |
| CN105244472A (en) | Novel lithium-pre-intercalated negative plate and preparation method thereof | |
| CN103259046B (en) | The preparation method of the high rate lithium iron phosphate cell of quickly-chargeable | |
| CN109449492B (en) | Ceramic-based all-solid-state battery and preparation method thereof | |
| WO2014032407A1 (en) | Silicon negative electrode pole piece of lithium ion battery and preparation method thereof, and lithium ion battery | |
| TW201324929A (en) | Secondary-battery current collector, secondary-battery cathode, secondary-battery anode, secondary battery and production method thereof | |
| CN105932209A (en) | Ceramic coating diaphragm for lithium ion battery and preparation method thereof | |
| KR101503807B1 (en) | A manufacture method of lithium ion capacitor using lithium metal powder | |
| CN110890545A (en) | PEDOT (polyethylene glycol terephthalate)/PSS (Polybutylece terephthalate)/CMC (carboxymethyl cellulose) composite binder as well as preparation method and application thereof | |
| CN109616604A (en) | A kind of preparation method of macroion conduction battery diaphragm and lithium ion battery containing the diaphragm |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |