CN203850387U - Soft-packaged lithium ion secondary battery - Google Patents
Soft-packaged lithium ion secondary battery Download PDFInfo
- Publication number
- CN203850387U CN203850387U CN201420233748.1U CN201420233748U CN203850387U CN 203850387 U CN203850387 U CN 203850387U CN 201420233748 U CN201420233748 U CN 201420233748U CN 203850387 U CN203850387 U CN 203850387U
- Authority
- CN
- China
- Prior art keywords
- positive pole
- lithium ion
- ion secondary
- secondary battery
- flexible packing
- 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.)
- Expired - Lifetime
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 56
- 239000012785 packaging film Substances 0.000 claims abstract description 32
- 229920006280 packaging film Polymers 0.000 claims abstract description 32
- 239000003792 electrolyte Substances 0.000 claims abstract description 8
- 238000004806 packaging method and process Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000012856 packing Methods 0.000 claims description 55
- 238000005538 encapsulation Methods 0.000 claims description 21
- 206010016766 flatulence Diseases 0.000 claims description 9
- 239000006183 anode active material Substances 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 4
- 239000011258 core-shell material Substances 0.000 claims description 3
- 239000007774 positive electrode material Substances 0.000 claims description 3
- 238000009795 derivation Methods 0.000 claims description 2
- 239000011149 active material Substances 0.000 abstract 4
- 230000008961 swelling Effects 0.000 abstract 2
- 238000004880 explosion Methods 0.000 abstract 1
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 230000012447 hatching Effects 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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
Landscapes
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a soft-packaged lithium ion secondary battery. The soft-packaged lithium ion secondary battery comprises an electric core, a positive pole lug, a negative pole lug, an electrolyte and a packaging film which packages the electric core, leads the positive pole lug and the negative pole lug out of the packaging film in a sealing manner and accommodates the electrolyte. The electric core comprises a positive pole piece, a negative pole piece and an isolating film, wherein the positive pole piece comprises a positive pole current collector and a positive pole active material layer which is arranged on the surface of the positive pole current collector and contains a positive pole active material; the negative pole piece comprises a negative pole current collector and a negative pole active material layer which is arranged on the surface of the negative pole current collector and contains a negative pole active material; the isolating film is arranged between the positive pole piece and the negative pole piece. The positive pole lug is electrically connected with the positive pole current collector of the positive pole piece. The negative pole lug is electrically connected with the negative pole current collector of the negative pole piece. A gap is formed on at least one packaging edge part of the packaging film, so that the gap on the packaging edge part of the packaging film can be burst when in swelling of the electric core, and then the explosion of the electric core caused by direct swelling of the electric core can be prevented.
Description
Technical field
The utility model relates to energy storage device field, relates in particular to a kind of flexible packing lithium ion secondary battery.
Background technology
Lithium rechargeable battery has higher energy density because of it, good security performance, advantages of environment protection, be widely used in mobile phone, the fields such as notebook computer, and along with the concern of people to environmental problem, lithium rechargeable battery is also applied to electric automobile field gradually, meanwhile, also the energy density of lithium rechargeable battery and security performance are had higher requirement.
At present, the outer packing shell that lithium rechargeable battery is used is generally divided into two kinds of rigid package and flexible packages.Flexible packing lithium ion secondary battery is due to the same volume in the situation that, can effectively improve the energy density of battery, thereby receive concern especially, but flexible packing lithium ion secondary battery is because external packing intensity is less, when there is abuse in flexible packing lithium ion secondary battery in the process of transportation or use, inside may produce a large amount of gas, cause flexible packing lithium ion secondary battery internal pressure excessive, surpass flexible package bear the limit time, will blast, produce larger potential safety hazard.
Utility model content
In view of the problem existing in background technology, the purpose of this utility model is to provide a kind of flexible packing lithium ion secondary battery,, it can strengthen the explosion-proof ability of battery core, thereby improves the security performance of flexible packing lithium ion secondary battery.
To achieve these goals, the utility model provides a kind of flexible packing lithium ion secondary battery, and it comprises: battery core; Positive pole ear; Negative lug; Electrolyte; And packaging film, packaging electric core also makes positive pole ear and negative lug seals and derives and hold electrolyte from packaging film.Battery core comprises: anode pole piece, comprises plus plate current-collecting body and the lip-deep anode active material layer that contains positive electrode active materials that is arranged on plus plate current-collecting body; Cathode pole piece, comprises negative current collector and the lip-deep anode active material layer that contains negative active core-shell material that is arranged on negative current collector; And barrier film, be arranged between anode pole piece and cathode pole piece.Positive pole ear is electrically connected on the plus plate current-collecting body of anode pole piece.Negative lug is electrically connected on the negative current collector of cathode pole piece.Wherein, at least one encapsulation of packaging film is provided with breach on edge, so that the indentation, there on this encapsulation edge of packaging film is burst during battery core generation flatulence, thereby prevents that the direct flatulence of battery core from causing battery core to explode.
The beneficial effects of the utility model are as follows:
By being provided with breach on the encapsulation edge at packaging film, indentation, there while making thus battery core generation flatulence on this encapsulation edge of packaging film is burst, rather than directly after flatulence, make battery core blast, and breach forming operation is convenient, shape is easily controlled, thereby the consistency of burst pressure is easily controlled, can be strengthened the explosion-proof ability of battery core, improve the security performance of flexible packing lithium ion secondary battery.
Accompanying drawing explanation
Fig. 1 is according to the front view of an embodiment of flexible packing lithium ion secondary battery of the present utility model;
Fig. 2 is according to the front view of an embodiment of flexible packing lithium ion secondary battery of the present utility model;
Fig. 3 is according to the front view of an embodiment of flexible packing lithium ion secondary battery of the present utility model;
Fig. 4 is according to the front view of an embodiment of flexible packing lithium ion secondary battery of the present utility model;
Fig. 5 is according to the front view of an embodiment of flexible packing lithium ion secondary battery of the present utility model;
Fig. 6 is according to the stereogram of an embodiment of flexible packing lithium ion secondary battery of the present utility model;
Fig. 7 is according to the front view of an embodiment of flexible packing lithium ion secondary battery of the present utility model, wherein, with hatching, battery core is shown;
Fig. 8 is the end view of Fig. 7, wherein, with hatching, battery core is shown;
Fig. 9 is the part enlarged drawing of Fig. 8, wherein, with hatching, battery core is shown;
Figure 10 is another part enlarged drawing of Fig. 8, wherein, with hatching, battery core is shown.
Wherein, description of reference numerals is as follows:
1 battery core 41 encapsulation edges
11 anode pole piece 42 breach
12 cathode pole piece 5 tabs
13 barrier film 6 positive pole ear exits
2 positive pole ear 7 negative lug exits
3 negative lug 8 PTC elements
4 packaging film 9 gap
Embodiment
Describe in detail with reference to the accompanying drawings according to flexible packing lithium ion secondary battery of the present utility model.
Referring to figs. 1 through Figure 10, according to this practical flexible packing lithium ion secondary battery, comprise: battery core 1; Positive pole ear 2; Negative lug 3; Electrolyte; And packaging film 4, packaging electric core 1 also makes positive pole ear 2 and negative lug 3 seals and derives and hold electrolyte from packaging film 4.Battery core 1 comprises: anode pole piece 11, comprises plus plate current-collecting body (not shown) and the lip-deep anode active material layer (not shown) that contains positive electrode active materials that is arranged on plus plate current-collecting body; Cathode pole piece 12, comprises negative current collector (not shown) and the lip-deep anode active material layer (not shown) that contains negative active core-shell material that is arranged on negative current collector; And barrier film 13, be arranged between anode pole piece 11 and cathode pole piece 12.Positive pole ear 2 is electrically connected on the plus plate current-collecting body of anode pole piece 11.Negative lug 3 is electrically connected on the negative current collector of cathode pole piece 12.Wherein, at least one encapsulation of packaging film 4 is provided with breach 42 on edge 41, so that battery core 1 bursts at breach 42 places on this encapsulation edge 41 of packaging film 4 while there is flatulence, thereby prevents that the direct flatulence of battery core 1 from causing battery core 1 to explode.In the drawings, three encapsulation edges 41 have been marked, closedtop when wherein the corresponding flexible packing lithium ion secondary battery in the encapsulation edge 41 at top encapsulates, side seal when the corresponding flexible packing lithium ion secondary battery in encapsulation edge 41 of side encapsulates, underseal when the corresponding flexible packing lithium ion secondary battery in encapsulation edge 41 of bottom encapsulates.
By being provided with breach 42 on the encapsulation edge 41 at packaging film 4, make thus breach 42 places of battery core 1 on this encapsulation edge 41 of packaging film 4 burst, rather than directly after flatulence, make battery core 1 blast, and breach forming operation convenient (for example adopting drop stamping or direct shearing), notch geometry is easily controlled, thereby the consistency of burst pressure is easily controlled, can be strengthened the explosion-proof ability of battery core 1, improve the security performance of flexible packing lithium ion secondary battery.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, battery core 1 can be takeup type battery core, lamination type electric core or coiling lamination combining type battery core.Fig. 6 is to example illustrated in fig. 10, and battery core 1 is takeup type battery core.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, described flexible packing lithium ion secondary battery can be square or cylindrical.Fig. 1 is to example illustrated in fig. 10, and described flexible packing lithium ion secondary battery is cylindrical.
In an embodiment of packaging film 4, packaging film 4 can be aluminum plastic film.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, the breach 42 on this encapsulation edge 41 can be positioned at (with reference to Fig. 1 and Fig. 3) on the outward flange of this encapsulation edge 41 or be positioned at the outward flange inner side (with reference to Fig. 2, Fig. 4, Fig. 5 and Fig. 7) of this encapsulation edge 41.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, when breach 42 is positioned on outward flange, the shape of breach 42 can be arc, triangle (with reference to Fig. 1), rectangle (with reference to Fig. 3) or irregularly shaped in a kind of.In another embodiment, when inside breach 42 is positioned at outward flange, the shape of breach 42 can be triangle, circle (with reference to Fig. 2, Fig. 4, Fig. 5 and Fig. 7), rectangle, ellipse or irregularly shaped in a kind of.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, positive pole ear 2 and negative lug 3 can be positioned at the same side of packaging film 4.In another embodiment, referring to figs. 1 through Figure 10, positive pole ear 2 and negative lug 3 can be positioned at the not homonymy of packaging film 4.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, referring to figs. 1 through Fig. 5, Fig. 7 to Figure 10, between positive pole ear 2 and negative lug 3 and packaging film 4, can be provided with tab 5 in sealing derivation place.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, positive pole ear 2 is at least one; Negative lug 3 is at least one.In example illustrated in fig. 6, positive pole ear 2 is two, and negative lug 3 is one.Than a positive pole ear 2 is set, the corresponding increase of discharge-rate that two positive pole ears 2 can make flexible packing lithium ion secondary battery is set, increased the power output of flexible packing lithium ion secondary battery.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, with reference to Fig. 8 to Figure 10, described flexible packing lithium ion secondary battery also can comprise: positive pole ear exit 6, be arranged on plus plate current-collecting body, be quantitatively at least one, be positioned at packaging film 4, all positive pole ear exits 6 are electrically connected on positive pole ear 2; Negative lug exit 7, is arranged on negative current collector, is quantitatively at least one, is positioned at packaging film 4, and all negative lug exits 7 are electrically connected on negative lug 3.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, with reference to Fig. 3 to Fig. 5, Fig. 7 to Fig. 9, only on positive pole ear 2, be provided with PTC element 8.In one embodiment, only in negative lug 3, be provided with PTC element 8.In another embodiment, in positive pole ear 2 and negative lug 3, be all provided with PTC element 8.PTC element is when applying interchange or direct voltage intensification, and below Curie-point temperature, resistivity is very low; Once but surmounting Curie-point temperature, resistivity can increase suddenly, makes its electric current drop to stationary value, reaches A.T.C, constant temperature object, thus the self-protection function when PTC element being set strengthening flexible packing lithium ion secondary battery generation external short circuit.And not rubescent during PTC element heating, the flames of anger, nonflammable, can there is not danger of combustion.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, with reference to Fig. 4 and Fig. 7, only on positive pole ear 2, be provided with gap 9.In one embodiment, only in negative lug 3, be provided with gap 9.In another embodiment, with reference to Fig. 5, in positive pole ear 2 and negative lug 3, be all provided with gap 9.When the temperature of flexible packing lithium ion secondary battery reaches after certain limit, because positive pole ear 2 and/or negative lug 3 are provided with gap 9, positive pole ear 2 and/or negative lug 3 are easily fused, thereby battery core 1 and external circuits are cut off.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, the gap 9 arranging in positive pole ear 2 and/or negative lug 3 can be positioned at edge or the inner side, edge of positive pole ear 2 and/or negative lug 3.In Fig. 4, Fig. 5 and example illustrated in fig. 7, the gap 9 arranging in positive pole ear 2 and/or negative lug 3 is positioned at the edge of positive pole ear 2 and/or negative lug 3.
According in an embodiment of flexible packing lithium ion secondary battery of the present utility model, with reference to Fig. 4, Fig. 5 and Fig. 7, when gap 9 is positioned at edge, gap 9 be shaped as arc, triangle, rectangle or irregularly shaped in a kind of.In another embodiment, when inside gap 9 is positioned at edge, the shape of gap 9 can be triangle, circle, rectangle, ellipse or irregularly shaped in a kind of.
Claims (10)
1. a flexible packing lithium ion secondary battery, comprising:
Battery core (1), comprising:
Anode pole piece (11), comprises plus plate current-collecting body and the lip-deep anode active material layer that contains positive electrode active materials that is arranged on plus plate current-collecting body;
Cathode pole piece (12), comprises negative current collector and the lip-deep anode active material layer that contains negative active core-shell material that is arranged on negative current collector; And
Barrier film (13), is arranged between anode pole piece (11) and cathode pole piece (12);
Positive pole ear (2), is electrically connected on the plus plate current-collecting body of anode pole piece (11); And
Negative lug (3), is electrically connected on the negative current collector of cathode pole piece (12);
Electrolyte; And
Packaging film (4), packaging electric core (1) also makes positive pole ear (2) and negative lug (3) seals and derives and hold electrolyte from packaging film (4);
It is characterized in that, on at least one encapsulation edge (41) of packaging film (4), be provided with breach (42), so that battery core (1) while there is flatulence the breach (42) on this encapsulation edge (41) of packaging film (4) locate to burst, thereby prevent battery core (1) directly flatulence cause battery core (1) to explode.
2. flexible packing lithium ion secondary battery according to claim 1, it is characterized in that, the breach (42) on this encapsulation edge (41) is positioned on the outward flange of this encapsulation edge (41) or is positioned at the outward flange inner side of this encapsulation edge (41).
3. flexible packing lithium ion secondary battery according to claim 2, is characterized in that,
When breach (42) is positioned on outward flange, breach (42) be shaped as arc, triangle, rectangle or irregularly shaped in a kind of;
When inside breach (42) is positioned at outward flange, breach (42) be shaped as triangle, circle, rectangle, ellipse or irregularly shaped in a kind of.
4. flexible packing lithium ion secondary battery according to claim 1, is characterized in that,
Positive pole ear (2) and negative lug (3) are positioned at the same side of packaging film (4) or homonymy not.
5. flexible packing lithium ion secondary battery according to claim 1, is characterized in that, between positive pole ear (2) and negative lug (3) and packaging film (4), in sealing derivation place, is provided with tab (5).
6. flexible packing lithium ion secondary battery according to claim 1, is characterized in that, described flexible packing lithium ion secondary battery also comprises:
Positive pole ear exit (6), is arranged on plus plate current-collecting body, is quantitatively at least one, is positioned at packaging film (4), and all positive pole ear exits (6) are electrically connected on positive pole ear (2);
Negative lug exit (7), is arranged on negative current collector, is quantitatively at least one, is positioned at packaging film (4), and all negative lug exits (7) are electrically connected on negative lug (3).
7. flexible packing lithium ion secondary battery according to claim 1, is characterized in that, in positive pole ear (2) and/or negative lug (3), is provided with PTC element (8).
8. flexible packing lithium ion secondary battery according to claim 1, is characterized in that, in positive pole ear (2) and/or negative lug (3), is provided with gap (9).
9. flexible packing lithium ion secondary battery according to claim 8, it is characterized in that, the upper gap (9) arranging of positive pole ear (2) and/or negative lug (3) is positioned at edge or the inner side, edge of positive pole ear (2) and/or negative lug (3).
10. flexible packing lithium ion secondary battery according to claim 9, is characterized in that,
When gap (9) is positioned at edge, gap (9) be shaped as arc, triangle, rectangle or irregularly shaped in a kind of;
When inside gap (9) is positioned at edge, gap (9) be shaped as triangle, circle, rectangle, ellipse or irregularly shaped in a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233748.1U CN203850387U (en) | 2014-05-08 | 2014-05-08 | Soft-packaged lithium ion secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233748.1U CN203850387U (en) | 2014-05-08 | 2014-05-08 | Soft-packaged lithium ion secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850387U true CN203850387U (en) | 2014-09-24 |
Family
ID=51563365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420233748.1U Expired - Lifetime CN203850387U (en) | 2014-05-08 | 2014-05-08 | Soft-packaged lithium ion secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850387U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159118A (en) * | 2015-04-02 | 2016-11-23 | 曙鹏科技（深圳）有限公司 | A kind of flexible packing lithium ion battery and manufacture method thereof |
| CN109580752A (en) * | 2017-09-28 | 2019-04-05 | 宁德时代新能源科技股份有限公司 | Battery detection frame and battery detection structure |
-
2014
- 2014-05-08 CN CN201420233748.1U patent/CN203850387U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159118A (en) * | 2015-04-02 | 2016-11-23 | 曙鹏科技（深圳）有限公司 | A kind of flexible packing lithium ion battery and manufacture method thereof |
| CN106159118B (en) * | 2015-04-02 | 2019-05-21 | 曙鹏科技（深圳）有限公司 | A kind of flexible packing lithium ion battery and its manufacturing method |
| CN109580752A (en) * | 2017-09-28 | 2019-04-05 | 宁德时代新能源科技股份有限公司 | Battery detection frame and battery detection structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102112670B1 (en) | Battery Cell of Venting Structure Using Taping | |
| CN208336400U (en) | A kind of self-heating lithium ion battery | |
| EP3051611B1 (en) | Battery cell comprising means for protecting short circuit | |
| CN108198966A (en) | A kind of battery cover board with novel pole sealing structure | |
| CN209029438U (en) | A kind of lithium-ion-power cell with thermal runaway control function | |
| JP2015510659A (en) | Rust-proof washer and secondary battery including the same | |
| CN203038986U (en) | Safe top cover of power cell | |
| CN203631651U (en) | Current cut-off device and aluminum-shell lithium ion battery with same | |
| JP3188012U (en) | Lithium-ion battery safety device | |
| JP2016076483A (en) | Corrosion resistant tube for secondary battery and secondary battery including the same | |
| CN103325987B (en) | Anti-acupuncture lithium battery | |
| CN203165987U (en) | Lithium-ion battery and safety overturning valve for over-charging safety protection device of lithium-ion battery | |
| CN204966577U (en) | Take polymer battery of fillet utmost point ear | |
| CN203826457U (en) | High-voltage nickel-metal hydride battery with high heat dissipation function and safety device | |
| CN203850387U (en) | Soft-packaged lithium ion secondary battery | |
| CN201673952U (en) | Dual safety explosion-proof device of power lithium battery | |
| CN205488385U (en) | Explosion -proof lithium cell structure of high magnification | |
| CN206610880U (en) | A kind of lithium ion battery | |
| JP7239242B2 (en) | Cylindrical battery and method of manufacturing cylindrical battery | |
| JP2009289542A (en) | Laminated film, and exoergic object packing body | |
| CN201032638Y (en) | Safety lithium ionic cell | |
| WO2021109315A1 (en) | Butterfly bean button-type soft package battery cell | |
| CN204464324U (en) | A kind of cylinder type lithium battery | |
| CN203950857U (en) | Flexible-packed battery and battery modules | |
| CN109037544A (en) | A kind of lithium-ion-power cell with thermal runaway control function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |