CN109461872A - A kind of ceramic slurry and lithium ion battery separator - Google Patents
A kind of ceramic slurry and lithium ion battery separator Download PDFInfo
- Publication number
- CN109461872A CN109461872A CN201811144104.4A CN201811144104A CN109461872A CN 109461872 A CN109461872 A CN 109461872A CN 201811144104 A CN201811144104 A CN 201811144104A CN 109461872 A CN109461872 A CN 109461872A
- Authority
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- China
- Prior art keywords
- parts
- ceramic slurry
- lithium ion
- ion battery
- battery separator
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- 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.)
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Classifications
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/431—Inorganic material
-
- 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
-
- 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 battery diaphragm processing technique field and disclose a kind of ceramic slurry and lithium ion battery separator, ceramic slurry are prepared by following component with parts by weight: 10~70 parts of light-cured resin；20~40 parts of binder；40~80 parts of inorganic nano-particle；0.1~3 part of dispersing agent；10~20 parts of fire retardant.The present invention by ultraviolet light, improve ceramic slurry coating heat resisting temperature and and ceramic slurry coating and diaphragm matrix adhesion strength, and then the thermal contraction of reduction diaphragm improves the heat resistance of diaphragm, improves the security performance of lithium ion battery.
Description
Technical field
Present invention relates particularly to a kind of ceramic slurry and lithium ion battery separators, belong to battery diaphragm processing technique field.
Background technique
As clean energy resource is more and more concerned, lithium ion battery is due to its high-energy density and longer cycle life etc.
Advantage is just rapidly developed.Lithium ion battery has been widely used for the various fields such as digital electronic goods, new-energy automobile, quilt
The internationally recognized new energy carrier for great application prospect and market value.In recent years, China also greatly develops lithium-ion electric
Pond industry, lithium electricity become the popular domain of research and development and industrialization.
It is currently the ceramics being made of in coating on base films inorganic ceramic and binder to improve the thermal stability of diaphragm
Layer significantly improves the security performance of battery since inorganic, ceramic layer has preferable thermal stability and mechanical performance.Due to
The ceramic diaphragm that the thermal contraction of ceramic diaphragm is caused by the fusion and decomposition of binder in ceramic layer at first, and sold currently on the market
Binder relatively be mostly polyacrylate binder, there are low melting point, the poor disadvantage of thermal stability.
Summary of the invention
The technical problem to be solved in the present invention overcomes existing defect, provide a kind of ceramic slurry and lithium ion battery every
Film improves the heat resisting temperature and and ceramic slurry coating and diaphragm matrix of ceramic slurry coating by ultraviolet light
Adhesion strength, and then the thermal contraction of diaphragm is reduced, the heat resistance of diaphragm is improved, the security performance of lithium ion battery is improved, it can
Effectively to solve the problems in background technique.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
The present invention provides a kind of ceramic slurry and lithium ion battery separator, is prepared by following component with parts by weight:
10~70 parts of light-cured resin；20~40 parts of binder；40~80 parts of inorganic nano-particle；0.1~3 part of dispersing agent；Resistance
10~20 parts of agent of combustion.
As a preferred technical solution of the present invention, the inorganic nano-particle is zirconium dioxide, boehmite, titanium dioxide
One of silicon, barium sulfate are a variety of.
As a preferred technical solution of the present invention, the binder is PVDF Kynoar.
As a preferred technical solution of the present invention, the fire retardant is tin oxide, phosphite ester, magnesium hydroxide, gathers
At least one of ammonium phosphate and aluminium hydroxide.
As a preferred technical solution of the present invention, the partial size of the inorganic nano-particle is 90~300nm.
The surface of a kind of lithium ion battery separator, including diaphragm matrix, the barrier film base material at least side is coated with ceramics
Slurry forms coating, is successively dried, ultraviolet light obtains lithium ion battery separator.
As a preferred technical solution of the present invention, the barrier film base material be PP film, PE film or both monofilm or
Cellulose non-woven cloth diaphragm.
As a preferred technical solution of the present invention, the temperature of the drying is 60~70 DEG C, the time is 10~
30min。
As a preferred technical solution of the present invention, the wavelength of the ultraviolet light is 256~400nm, and irradiation time is
0.3~1.8h.
The beneficial effects obtained by the present invention are as follows being: by ultraviolet light, improving the heat resisting temperature of ceramic slurry coating
With and ceramic slurry coating and diaphragm matrix adhesion strength, and then reduce diaphragm thermal contraction, improve the heat resistance of diaphragm
Can, improve the security performance of lithium ion battery.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1:
A kind of ceramic slurry of the present invention and lithium ion battery separator, are prepared by following component with parts by weight:
19 parts of light-cured resin；20.4 parts of binder；40.5 parts of inorganic nano-particle；0.1 part of dispersing agent；20 parts of fire retardant.
Further, the inorganic nano-particle is zirconium dioxide and boehmite.
Further, the binder is PVDF Kynoar.
Further, the fire retardant is tin oxide and phosphite ester.
Further, the partial size of the inorganic nano-particle is 90nm.
The surface of a kind of lithium ion battery separator, including diaphragm matrix, the barrier film base material side is coated with ceramic slurry,
Coating is formed, is successively dried, ultraviolet light obtains lithium ion battery separator.
Further, the barrier film base material is PP film.
Further, the temperature of the drying is 60 DEG C, time 10min.
Further, the wavelength of the ultraviolet light is 256nm, irradiation time 0.3h.
Embodiment 2:
A kind of ceramic slurry of the present invention and lithium ion battery separator, are prepared by following component with parts by weight:
10 parts of light-cured resin；33 parts of binder；40 parts of inorganic nano-particle；2 parts of dispersing agent；15 parts of fire retardant.
Further, the inorganic nano-particle is zirconium dioxide, boehmite, silica.
Further, the binder is PVDF Kynoar.
Further, the fire retardant be tin oxide, phosphite ester, magnesium hydroxide, ammonium polyphosphate with.
Further, the partial size of the inorganic nano-particle is 100nm.
The surface of a kind of lithium ion battery separator, including diaphragm matrix, the barrier film base material at least side is coated with ceramics
Slurry forms coating, is successively dried, ultraviolet light obtains lithium ion battery separator.
Further, the barrier film base material is PE film.
Further, the temperature of the drying is 65 DEG C, time 20min.
Further, the wavelength of the ultraviolet light is 280nm, irradiation time 1h.
Embodiment 3:
A kind of ceramic slurry of the present invention and lithium ion battery separator, are prepared by following component with parts by weight:
10 parts of light-cured resin；27 parts of binder；48 parts of inorganic nano-particle；3 parts of dispersing agent；12 parts of fire retardant.
Further, the inorganic nano-particle is zirconium dioxide, boehmite, silica, barium sulfate.
Further, the binder is PVDF Kynoar.
Further, the fire retardant is tin oxide, phosphite ester, magnesium hydroxide, ammonium polyphosphate and aluminium hydroxide.
Further, the partial size of the inorganic nano-particle is 120nm.
The surface of a kind of lithium ion battery separator, including diaphragm matrix, the barrier film base material at least side is coated with ceramics
Slurry forms coating, is successively dried, ultraviolet light obtains lithium ion battery separator.
Further, the barrier film base material is cellulose non-woven cloth diaphragm.
Further, the temperature of the drying is 68 DEG C, time 25min.
Further, the wavelength of the ultraviolet light is 300nm, irradiation time 1.6h.
Embodiment 4:
A kind of ceramic slurry of the present invention and lithium ion battery separator, are prepared by following component with parts by weight:
11 parts of light-cured resin；30 parts of binder；45 parts of inorganic nano-particle；2 parts of dispersing agent；11 parts of fire retardant.
Further, the inorganic nano-particle is zirconium dioxide.
Further, the binder is PVDF Kynoar.
Further, the fire retardant is tin oxide.
Further, the partial size of the inorganic nano-particle is 260nm.
The surface of a kind of lithium ion battery separator, including diaphragm matrix, the barrier film base material at least side is coated with ceramics
Slurry forms coating, is successively dried, ultraviolet light obtains lithium ion battery separator.
Further, the barrier film base material is PP film.
Further, the temperature of the drying is 70 DEG C, time 30min.
Further, the wavelength of the ultraviolet light is 400nm, irradiation time 1.8h.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (9)
1. a kind of ceramic slurry, it is characterised in that: be prepared by following component with parts by weight:
10~70 parts of light-cured resin；20~40 parts of binder；40~80 parts of inorganic nano-particle；0.1~3 part of dispersing agent；Resistance
10~20 parts of agent of combustion.
2. a kind of ceramic slurry as described in claim 1, it is characterised in that: the inorganic nano-particle is zirconium dioxide, suddenly
One of nurse stone, silica, barium sulfate are a variety of.
3. a kind of ceramic slurry as described in claim 1, it is characterised in that: the binder is PVDF Kynoar.
4. a kind of ceramic slurry as described in claim 1, it is characterised in that: the fire retardant is tin oxide, phosphite ester, hydrogen
At least one of magnesia, ammonium polyphosphate and aluminium hydroxide.
5. a kind of ceramic slurry as described in claim 1, it is characterised in that: the partial size of the inorganic nano-particle is 90~
300nm。
6. a kind of lithium ion battery separator, it is characterised in that: including diaphragm matrix, the surface of the barrier film base material at least side is applied
It is furnished with ceramic slurry, coating is formed, is successively dried, ultraviolet light obtains lithium ion battery separator.
7. a kind of lithium ion battery separator as claimed in claim 6, it is characterised in that: the barrier film base material is PP film, PE film
Or both monofilm or cellulose non-woven cloth diaphragm.
8. a kind of lithium ion battery separator as claimed in claim 6, it is characterised in that: the temperature of the drying is 60~70
DEG C, the time is 10~30min.
9. a kind of lithium ion battery separator as claimed in claim 6, it is characterised in that: the wavelength of the ultraviolet light is 256~
400nm, irradiation time are 0.3~1.8h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144104.4A CN109461872A (en) | 2018-09-29 | 2018-09-29 | A kind of ceramic slurry and lithium ion battery separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144104.4A CN109461872A (en) | 2018-09-29 | 2018-09-29 | A kind of ceramic slurry and lithium ion battery separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109461872A true CN109461872A (en) | 2019-03-12 |
Family
ID=65607158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811144104.4A Pending CN109461872A (en) | 2018-09-29 | 2018-09-29 | A kind of ceramic slurry and lithium ion battery separator |
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| Country | Link |
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| CN (1) | CN109461872A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459724A (en) * | 2019-08-09 | 2019-11-15 | 深圳市天劲新能源研究院 | A kind of high-strength PET ceramic diaphragm and preparation method thereof |
| CN111224041A (en) * | 2020-01-17 | 2020-06-02 | 衡阳瑞达电源有限公司 | Lithium ion battery diaphragm, lithium ion battery and preparation method |
| CN113795974A (en) * | 2019-05-07 | 2021-12-14 | 赢创运营有限公司 | Lithium ion battery separator coated with surface treated alumina |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080118826A1 (en) * | 2004-12-17 | 2008-05-22 | Nissan Motor Co., Ltd. | Lithium-Ion Battery And Method For Its Manufacture |
| EP1596459A4 (en) * | 2002-12-27 | 2008-09-03 | Matsushita Electric Ind Co Ltd | Electrochemical device and method for manufacturing same |
| CN101874319A (en) * | 2007-11-29 | 2010-10-27 | 株式会社Lg化学 | Separator having porous coating layer, method for manufacturing the same and electrochemical device having the same |
| CN106519742A (en) * | 2016-11-01 | 2017-03-22 | 旭成（福建）科技股份有限公司 | Anti-flaming ceramic modified size and lithium ion battery membrane coated with same |
| CN108063209A (en) * | 2017-11-25 | 2018-05-22 | 合肥国轩高科动力能源有限公司 | A kind of lithium ion battery ceramic diaphragm and preparation method thereof |
-
2018
- 2018-09-29 CN CN201811144104.4A patent/CN109461872A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1596459A4 (en) * | 2002-12-27 | 2008-09-03 | Matsushita Electric Ind Co Ltd | Electrochemical device and method for manufacturing same |
| US20080118826A1 (en) * | 2004-12-17 | 2008-05-22 | Nissan Motor Co., Ltd. | Lithium-Ion Battery And Method For Its Manufacture |
| CN101874319A (en) * | 2007-11-29 | 2010-10-27 | 株式会社Lg化学 | Separator having porous coating layer, method for manufacturing the same and electrochemical device having the same |
| CN106519742A (en) * | 2016-11-01 | 2017-03-22 | 旭成（福建）科技股份有限公司 | Anti-flaming ceramic modified size and lithium ion battery membrane coated with same |
| CN108063209A (en) * | 2017-11-25 | 2018-05-22 | 合肥国轩高科动力能源有限公司 | A kind of lithium ion battery ceramic diaphragm and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113795974A (en) * | 2019-05-07 | 2021-12-14 | 赢创运营有限公司 | Lithium ion battery separator coated with surface treated alumina |
| CN110459724A (en) * | 2019-08-09 | 2019-11-15 | 深圳市天劲新能源研究院 | A kind of high-strength PET ceramic diaphragm and preparation method thereof |
| CN111224041A (en) * | 2020-01-17 | 2020-06-02 | 衡阳瑞达电源有限公司 | Lithium ion battery diaphragm, lithium ion battery and preparation method |
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Application publication date: 20190312 |
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