CN103474607A - Lithium-ion power battery diaphragm, preparation method thereof and lithium-ion power battery - Google Patents
Lithium-ion power battery diaphragm, preparation method thereof and lithium-ion power battery Download PDFInfo
- Publication number
- CN103474607A CN103474607A CN2013104395246A CN201310439524A CN103474607A CN 103474607 A CN103474607 A CN 103474607A CN 2013104395246 A CN2013104395246 A CN 2013104395246A CN 201310439524 A CN201310439524 A CN 201310439524A CN 103474607 A CN103474607 A CN 103474607A
- Authority
- CN
- China
- Prior art keywords
- lithium
- ion
- power cell
- barrier film
- power battery
- 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
-
- 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 provides a lithium-ion power battery diaphragm, a preparation method thereof and a lithium-ion power battery. The lithium-ion power battery diaphragm comprises a microporous basement membrane, wherein a coating slurry layer is coated on at least one side of the microporous basement membrane. The coating slurry layer comprises the following components by weight percent: 10-25% of chemical binder, 1-3% of thickening agent, 25-55% of abrasive slurry, 0.1-0.3% of defoaming agent, 0.1-0.3% of wetting agent, 0.1-0.3% of dispersing agent and 0.1-0.3% of levelling agent. The lithium-ion power battery diaphragm, the preparation method and the lithium-ion power battery have the beneficial effects that the costs of the abrasive slurry and coating slurry can be greatly reduced by adopting cheap silicon carbide as a main raw material of the abrasive slurry or the coating slurry; relative to lithium-ion power battery diaphragms disclosed by the prior art, aluminium oxide is not used, so that aluminium oxide can not carry out chemical reaction with lithium iron phosphate in positive plates of lithium batteries, and trilithium aluminate (Li3AlO3) can not be generated; therefore the problem of puncture of the diaphragm does not exist in a battery using process, so that the safety of a lithium battery can be improved, and the service life of the lithium battery can be prolonged.
Description
technical field
The present invention relates to a kind of lithium-ion-power cell barrier film and preparation method thereof and lithium-ion-power cell.
Background technology
Electrokinetic cell is the power supply that instrument provides power resources, refers to provide for electric automobile, electric train, electric bicycle, golf cart the storage battery of power more.With electrokinetic cell, as the automobile of the energy new-energy automobile that is otherwise known as, new-energy automobile and characteristic environmental protection energy-conservation because of it is expected, but its industrialization faces greatest problem, is high selling price.From external hybrid vehicle, the price difference between hybrid vehicle of the same type and fuel combustion type automobile reaches ten thousand yuans of 8-10, and the price difference of domestic pure electric vehicle type and fuel vehicle of the same type is especially up to more than 20 ten thousand.Can progressively fill and lead up although the operation and maintenance in new-energy automobile later stage is with low cost the price difference of once purchasing, the great number acquisition price becomes the significant obstacle that hinders the new-energy automobile industrialization undoubtedly.
The height of new-energy automobile price comes from dynamic lithium battery, and new-energy automobile mainly partly is comprised of battery powered system, electric system and electric-control system and assembling etc.Wherein motor, automatically controlled and assembling and orthodox car are basic identical, and the reason of price difference is battery powered system.From the cost structure of new-energy automobile, battery powered system has occupied the 30-45% of new-energy automobile cost, and dynamic lithium battery occupies the cost structure of the about 75-85% of battery powered system.
Business-like dynamic lithium battery mainly comprises ferric phosphate lithium cell, lithium manganate battery and ternary material battery etc. in the market, and China market be take LiFePO4 as main, the hybrid battery system of the large more options LiMn2O4 of Japan and Korea S and ternary material.At present domestic ferric phosphate lithium cell price is about 3-4 unit/Wh, and LiMn2O4 and ternary material battery are about 4-5 unit/Wh.Consider the battery capacity of dissimilar new-energy automobile, the battery capacity of plug-in hybrid-power automobile is 10-16KWh, the battery capacity 24-60KWh of pure electric automobile, the battery capacity of pure electric bus is generally 200-400Kwh, corresponding battery price is in ten thousand yuan of 3-5, ten thousand yuan of 7-18 and ten thousand yuan of levels of 60-120, and so high battery price is the main cause that new-energy automobile holds at high price.
Reduce the battery cost, always be solution party important in industry to.Positive electrode, negative material, battery diaphragm, electrolyte is most important four raw material of lithium battery, wherein, positive electrode, negative material and electrolyte, realized production domesticization fully, its Costco Wholesale is effectively controlled, but, lithium battery diaphragm is because investment risk is large, technical threshold is high, fail to realize domestic large-scale production always, become the bottleneck of restriction China lithium battery industry development, particularly to fail safe, the power lithium-ion battery field that coherence request is higher, the obstacle that China makes the country prosperous and is difficult to go beyond from lithium battery big producing country to lithium battery production especially.
Battery diaphragm is the highest a kind of high added value material of technology barriers in the lithium electric material, has accounted for the 30-50% of lithium battery cost.How in the situation that guarantee the lithium battery fail safe, reduce battery diaphragm cost, be current electrokinetic cell industry problem in the urgent need to address.At present, battery diaphragm is to coat coating sizing-agent at the one or both sides of the polymeric membrane of Porous to form, the cost determination of coating sizing-agent the cost of battery diaphragm.
In order to address this problem, Chinese patent literature CN102751483A discloses a kind of lithium-ion-power cell barrier film and preparation method thereof, used the coating sizing-agent of 40 50% precipitation method barium sulfate (w/w) and 1 5% alundum (Al2O3) (w/w) in battery isolating film in the document, because the cost of precipitation method barium sulfate is lower, so, can reduce widely the cost of battery isolating film, thereby reduce the cost of dynamic lithium battery.But, this battery isolating film, although have certain price advantage, also there is certain hidden danger in it aspect fail safe.This be because, the coating sizing-agent in the document contains alundum (Al2O3), and alundum (Al2O3) is after making battery, can with positive plate of lithium battery in LiFePO4 generation chemical reaction, generate aluminic acid three lithium (Li
3alO
3), and aluminic acid three lithiums are spinel structures, in the process of using at battery, easily puncture barrier film, cause the positive and negative electrode short circuit of lithium battery, gently make lithium battery reduction of service life, heavy cause the lithium battery heating and the generation battery explosion.
At present, China is due to a large amount of productions of solar power silicon plate, make the carborundum industry supporting with it also advance by leaps and bounds, sale weakness due to solar power silicon plate on international market, also affected carborundum in our production capacity surplus, prices is also sold and is had some setbacks, and is badly in need of finding other application for carborundum.
summary of the invention
In order to overcome the problems referred to above, the present invention provides a kind of not only with low cost to society, and the good lithium-ion-power cell barrier film of security performance.
Second purpose of the present invention is to provide a kind of preparation method of lithium-ion-power cell barrier film.
The 3rd purpose of the present invention is to provide a kind of lithium-ion-power cell.
With respect to first goal of the invention, technical scheme of the present invention is: a kind of lithium-ion-power cell barrier film is provided, comprises micropore basal membrane, at least one side of described micropore basal membrane, be coated with the coating sizing-agent layer, described coating sizing-agent layer comprises the following component of percentage by weight
Chemical industry binder 10-25%;
Thickener 1-3%;
Ground slurry 25-55%;
Defoamer 0.1-0.3%;
Wetting agent 0.1-0.3%;
Dispersant 0.1-0.3%;
Levelling agent 0.1-0.3%;
Wherein, described ground slurry comprises the following component of percentage by weight,
Carborundum 25-55%
N, 1-METHYLPYRROLIDONE 1-3%
Vinyl pyrrolidone 1-3%
Carbonic acid divinyl ester 1-3%
Organic fluoride dispersant 0.01-1%
The deionized water surplus.
As improvement of the present invention, described chemical industry binder is SBR carboxylic styrene butadiene latex, carboxylic styrene-butadiene rubber dispersion liquid, polyurethane aqueous dispersion liquid, acrylic acid-primary amine copolymer emulsion, acrylic acid-primary amine copolymerization dispersion liquid, vinylidene solvent-borne type dispersion liquid or vinylidene aqueous liquid dispersion.
As improvement of the present invention, described thickener is sodium carboxymethylcellulose or association thickener.
As improvement of the present invention, described Organic fluoride dispersant is the FSWET-1010 of Du Pont Organic fluoride dispersant.
As improvement of the present invention, described micropore basal membrane is PP micropore basal membrane, PE micropore basal membrane, UHMW-PE micropore basal membrane or PVDF type micropore basal membrane.
As improvement of the present invention, the thickness of described micropore basal membrane is 10-40 μ m.
As improvement of the present invention, described coating sizing-agent layer thickness is 10 ± 0.5 μ m.
The present invention also provides a kind of preparation method of lithium-ion-power cell barrier film, will contain the coating sizing-agent of above-mentioned component and ratio, is coated on the one or both sides of micropore basal membrane with nick coating machine, transfer coater or extrusion coating machine, and drying, rolling are standby.
The present invention also provides a kind of lithium-ion-power cell, includes above-mentioned any lithium-ion-power cell barrier film.
The present invention has adopted the cheap carborundum of China (production capacity surplus occurred in making solar power silicon plate process, for China's carborundum has found a new outlet) as the primary raw material of ground slurry or coating sizing-agent, can reduce widely the cost of ground slurry and coating sizing-agent; For the disclosed lithium-ion-power cell barrier film of Chinese patent literature CN102751483A, owing to there not being alundum (Al2O3), thereby, after making battery, just do not have aluminic acid three lithium (Li
3alO
3) generate, therefore, in the process of using at battery, do not have the problem that punctures barrier film, can improve like this fail safe of lithium battery and the useful life of prolongation lithium battery; Again, carborundum has good heat conductivility, can accelerate the radiating rate of lithium battery, can improve equally the useful life of lithium battery, thereby further reduces the use cost of lithium battery.
Embodiment
One, ground slurry
The ground slurry of following each embodiment all adopts following method preparation, component and ratio in the abrasive of following each embodiment, various components are inserted in dispersion machine, in dispersion machine, disperse to stir at least 15 minutes, then, transfer in grinder, by the zirconium dioxide grinding bead, grind 20-50 hour, make ground slurry, standby.
Embodiment 1
Carborundum 25%
N, 1-METHYLPYRROLIDONE 1%
Vinyl pyrrolidone 1%
Carbonic acid divinyl ester 1%
Organic fluoride dispersant 0.01%
The deionized water surplus.
Embodiment 2
Carborundum 30%
N, 1-METHYLPYRROLIDONE 2%
Vinyl pyrrolidone 2%
Carbonic acid divinyl ester 2%
Organic fluoride dispersant 0.1%
The deionized water surplus.
Embodiment 3
Carborundum 35%
N, 1-METHYLPYRROLIDONE 3%
Vinyl pyrrolidone 3%
Carbonic acid divinyl ester 3%
Organic fluoride dispersant 0.3%
The deionized water surplus.
Embodiment 4
Carborundum 40%
N, 1-METHYLPYRROLIDONE 3%
Vinyl pyrrolidone 3%
Carbonic acid divinyl ester 3%
Organic fluoride dispersant 0.5%
The deionized water surplus.
Embodiment 5
Carborundum 45%
N, 1-METHYLPYRROLIDONE 3%
Vinyl pyrrolidone 3%
Carbonic acid divinyl ester 3%
Organic fluoride dispersant 0.7%
The deionized water surplus.
Embodiment 6
Carborundum 50%
N, 1-METHYLPYRROLIDONE 3%
Vinyl pyrrolidone 3%
Carbonic acid divinyl ester 3%
Organic fluoride dispersant 1%
The deionized water surplus.
Embodiment 7
Carborundum 55%
N, 1-METHYLPYRROLIDONE 3%
Vinyl pyrrolidone 3%
Carbonic acid divinyl ester 3%
Organic fluoride dispersant 1%
The deionized water surplus.
Two, the coating sizing-agent of barrier film
The preparation method of following each coating sizing-agent, all can, in component and the ratio of the coating sizing-agent of following each embodiment, insert in container and be uniformly mixed and get final product.
Chemical industry binder in following each embodiment can be selected any one in SBR carboxylic styrene butadiene latex, carboxylic styrene-butadiene rubber dispersion liquid, polyurethane aqueous dispersion liquid, acrylic acid-primary amine copolymer emulsion, acrylic acid-primary amine copolymerization dispersion liquid, vinylidene solvent-borne type dispersion liquid and vinylidene aqueous liquid dispersion, and the phase trans-substitution is used.
Thickener in following each embodiment can be selected any one in sodium carboxymethylcellulose and association thickener, and the phase trans-substitution is used.
Ground slurry in following each embodiment can be selected any one embodiment in above-mentioned enforcement 1 to embodiment 7.
Embodiment 8
SBR carboxylic styrene butadiene latex 10%
Sodium carboxymethylcellulose 1%
Ground slurry (adopting embodiment 1) 25%
Defoamer 0.1%
Wetting agent 0.1%
Dispersant 0.1%
Levelling agent 0.1%.
Embodiment 9
Carboxylic styrene-butadiene rubber dispersion liquid 15%
Association thickener 2%
Ground slurry (adopting embodiment 2) 30%
Defoamer 0.2%
Wetting agent 0.2%
Dispersant 0.2%
Levelling agent 0.2%.
Embodiment 10
Polyurethane aqueous dispersion liquid 20%
Sodium carboxymethylcellulose 3%
Ground slurry (adopting embodiment 3) 35%
Defoamer 0.3%
Wetting agent 0.3%
Dispersant 0.3%
Levelling agent 0.3%.
Embodiment 11
Acrylic acid-primary amine copolymer emulsion 25%
Association thickener 3%
Ground slurry (adopting embodiment 4) 40%
Defoamer 0.3%
Wetting agent 0.3%
Dispersant 0.3%
Levelling agent 0.3%.
Embodiment 12
Acrylic acid-primary amine copolymerization dispersion liquid 25%
Sodium carboxymethylcellulose 3%
Ground slurry (adopting embodiment 5) 45%
Defoamer 0.3%
Wetting agent 0.3%
Dispersant 0.3%
Levelling agent 0.3%.
Embodiment 13
Vinylidene solvent-borne type dispersion liquid 25%
Association thickener 3%
Ground slurry (adopting embodiment 6) 50%
Defoamer 0.3%
Wetting agent 0.3%
Dispersant 0.3%
Levelling agent 0.3%.
Embodiment 14
Vinylidene aqueous liquid dispersion 25%
Sodium carboxymethylcellulose 3%
Ground slurry (adopting embodiment 7) 55%
Defoamer 0.3%
Wetting agent 0.3%
Dispersant 0.3%
Levelling agent 0.3%.
By embodiment 8 to embodiment 14 described coating sizing-agents, be coated on respectively on the micropore basal membrane one or both sides, coating thickness is in 10 μ m ± 0.5 μ m scope, and the thickness of micropore basal membrane can be selected in 10 μ m-40 μ m, adopts following examination criteria: EN 29073-T1; With main a few money battery isolating films of the similar thickness of external import, compare, its result is as follows:
As can be seen from the above table, not only all properties index has all reached the standard of external import, and increases on air penetrability, closed pore temperature and three Performance figures of broken film temperature.Like this, in the useful life that can improve the lithium battery of working it out with the present invention, reach the purpose further reduced costs.
The present invention also provides a kind of lithium-ion-power cell, includes above-mentioned any lithium-ion-power cell barrier film.
Claims (9)
1. a lithium-ion-power cell barrier film, comprise micropore basal membrane, described micropore basal membrane at least the one side be coated with the coating sizing-agent layer, it is characterized in that: described coating sizing-agent layer comprises the following component of percentage by weight,
Chemical industry binder 10-25%;
Thickener 1-3%;
Ground slurry 25-55%;
Defoamer 0.1-0.3%;
Wetting agent 0.1-0.3%;
Dispersant 0.1-0.3%;
Levelling agent 0.1-0.3%;
Wherein, described ground slurry comprises the following component of percentage by weight,
Carborundum 25-55%
N, 1-METHYLPYRROLIDONE 1-3%
Vinyl pyrrolidone 1-3%
Carbonic acid divinyl ester 1-3%
Organic fluoride dispersant 0.01-1%
The deionized water surplus.
2. according to the described a kind of lithium-ion-power cell barrier film of claim 1, it is characterized in that: described chemical industry binder is SBR carboxylic styrene butadiene latex, carboxylic styrene-butadiene rubber dispersion liquid, polyurethane aqueous dispersion liquid, acrylic acid-primary amine copolymer emulsion, acrylic acid-primary amine copolymerization dispersion liquid, vinylidene solvent-borne type dispersion liquid or vinylidene aqueous liquid dispersion.
3. a kind of lithium-ion-power cell barrier film according to claim 1 and 2, it is characterized in that: described thickener is sodium carboxymethylcellulose or association thickener.
4. a kind of lithium-ion-power cell barrier film according to claim 1 and 2, it is characterized in that: described Organic fluoride dispersant is the FSWET-1010 of Du Pont Organic fluoride dispersant.
5. a kind of lithium-ion-power cell barrier film according to claim 1 and 2, it is characterized in that: described micropore basal membrane is PP micropore basal membrane, PE micropore basal membrane, UHMW-PE micropore basal membrane or PVDF type micropore basal membrane.
6. a kind of lithium-ion-power cell barrier film according to claim 1 and 2, it is characterized in that: the thickness of described micropore basal membrane is 10-40 μ m.
7. a kind of lithium-ion-power cell barrier film according to claim 1 and 2, it is characterized in that: described coating sizing-agent layer thickness is 10 ± 0.5 μ m.
8. the preparation method of a lithium-ion-power cell barrier film, it is characterized in that: the coating sizing-agent that will contain the described component of claim 1 and ratio, be coated on the one or both sides of micropore basal membrane with nick coating machine, transfer coater or extrusion coating machine, drying, rolling are standby.
9. a lithium-ion-power cell, is characterized in that: include claim 1 to any lithium-ion-power cell barrier film claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104395246A CN103474607A (en) | 2013-09-25 | 2013-09-25 | Lithium-ion power battery diaphragm, preparation method thereof and lithium-ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104395246A CN103474607A (en) | 2013-09-25 | 2013-09-25 | Lithium-ion power battery diaphragm, preparation method thereof and lithium-ion power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103474607A true CN103474607A (en) | 2013-12-25 |
Family
ID=49799362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104395246A Pending CN103474607A (en) | 2013-09-25 | 2013-09-25 | Lithium-ion power battery diaphragm, preparation method thereof and lithium-ion power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103474607A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449143A (en) * | 2014-10-13 | 2016-03-30 | 万向A一二三系统有限公司 | Lithium ion battery coating diaphragm and preparation method therefor |
| WO2018145665A1 (en) * | 2017-02-13 | 2018-08-16 | 河北金力新能源科技股份有限公司 | High temperature-resistant multilayer separator composite lithium-ion battery separator and manufacturing method therefor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185141A (en) * | 2011-04-06 | 2011-09-14 | 清华大学深圳研究生院 | Modification method for improving high-temperature cycle performance and ionic conductance of lithium iron phosphate material |
| CN102751463A (en) * | 2012-07-15 | 2012-10-24 | 湛江市鑫满矿业有限公司 | Lithium-ion power battery isolating membrane and preparation method thereof |
-
2013
- 2013-09-25 CN CN2013104395246A patent/CN103474607A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185141A (en) * | 2011-04-06 | 2011-09-14 | 清华大学深圳研究生院 | Modification method for improving high-temperature cycle performance and ionic conductance of lithium iron phosphate material |
| CN102751463A (en) * | 2012-07-15 | 2012-10-24 | 湛江市鑫满矿业有限公司 | Lithium-ion power battery isolating membrane and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449143A (en) * | 2014-10-13 | 2016-03-30 | 万向A一二三系统有限公司 | Lithium ion battery coating diaphragm and preparation method therefor |
| WO2018145665A1 (en) * | 2017-02-13 | 2018-08-16 | 河北金力新能源科技股份有限公司 | High temperature-resistant multilayer separator composite lithium-ion battery separator and manufacturing method therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10497914B2 (en) | Water-based composition used for modifying diaphragm for lithium batteries and modified diaphragm and batteries | |
| CN109256543B (en) | A kind of modified nickel cobalt manganese lithium aluminate cathode material and preparation method thereof | |
| CN106299314B (en) | A kind of lithium ion battery negative material and preparation method thereof, lithium ion battery | |
| CN102768901A (en) | Long-life capacitance battery | |
| CN106450214B (en) | Layered lithium iron phosphate composite material and preparation method thereof | |
| CN105226274B (en) | A kind of preparation method of the scattered LiFePO4/graphene composite material of graphene uniform | |
| CN106025194B (en) | A kind of black phosphorus base composite negative pole material and preparation method thereof | |
| CN102751463A (en) | Lithium-ion power battery isolating membrane and preparation method thereof | |
| CN202308155U (en) | High-security capacitor battery | |
| CN103855389A (en) | Ferric (III) fluoride / carbon composite material and its preparation method and application | |
| CN104241621A (en) | Silicon-based composite negative electrode material for lithium ion battery | |
| CN108172894B (en) | A kind of high temperature resistant type lithium titanate battery and its chemical conversion aging method | |
| CN112909433A (en) | Silicon monoxide/polyacrylic acid modified high-safety battery diaphragm and preparation method and application thereof | |
| CN103474607A (en) | Lithium-ion power battery diaphragm, preparation method thereof and lithium-ion power battery | |
| CN103474604A (en) | Lithium-ion power battery diaphragm, preparation method thereof and lithium-ion power battery | |
| CN103474605A (en) | Lithium-ion power battery diaphragm, preparation method thereof and lithium-ion power battery | |
| CN103606706A (en) | Lithium ion battery and preparation method thereof | |
| CN103468208A (en) | Abrasive and coating slurry of lithium-ion power battery diaphragm and preparation methods thereof | |
| CN204793029U (en) | Mix negative pole pole piece and lithium ion power batteries | |
| CN202772231U (en) | High-magnification power battery | |
| CN103468207A (en) | Abrasive and coating slurry of lithium-ion power battery diaphragm and preparation methods thereof | |
| CN103468209A (en) | Abrasive and coating slurry of lithium-ion power battery diaphragm and preparation methods thereof | |
| CN103474606A (en) | Lithium-ion power battery diaphragm, preparation method thereof and lithium-ion power battery | |
| CN103151569B (en) | Method for improving cyclical stability of lithium ion battery containing positive material LiNi0.5Mn1.5O4 and lithium ion battery | |
| CN101740756A (en) | Method for preparing nano-scale cathode material LiFePO4 of power battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131225 |