CN1713442A - Secondary battery, cap assembly thereof and method of mounting safety valve therefor - Google Patents
Secondary battery, cap assembly thereof and method of mounting safety valve therefor Download PDFInfo
- Publication number
- CN1713442A CN1713442A CNA2005100796182A CN200510079618A CN1713442A CN 1713442 A CN1713442 A CN 1713442A CN A2005100796182 A CNA2005100796182 A CN A2005100796182A CN 200510079618 A CN200510079618 A CN 200510079618A CN 1713442 A CN1713442 A CN 1713442A
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- Prior art keywords
- safety valve
- secondary cell
- cover plate
- hole
- clamp structure
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
A secondary battery may be manufactured with an electrode assembly having a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. A container encases the electrode assembly. A hole formed on one end of the container with a stepped configuration that opens with different diameters on opposite sides of a cap plate and a safety valve mounted in the stepped surface of the hole, is configured to rupture and tear open upon occurrence of a predetermined internal battery pressure.
Description
Technical field
The present invention relates to secondary cell, more specifically, relate to a kind of secondary cell, its cap assemblies and the method for therefore safety valve being installed, safety valve is easy to install in this method.
Background technology
Different with existing battery, secondary cell can recharge.In the recent period, developed a kind of high power secondary battery that uses non-aqueous eletrolyte and have high-energy-density.When battery cell is made into battery pack, just formed the battery of low capacity, can be used as power supply such as various portable small-sized electronic installations such as portable phone, laptop computer and camcorders.Just formed the large scale battery when several to the series connection of tens secondary battery batteries or when being connected in parallel, can be used for power supply such as drive motors in the electric automobile.
According to its external dimensions, secondary cell can be divided into different types.For example: square and cylindrical battery.Secondary cell comprises electrode assemblie (film shape), the positive plate of the long band shape in this electrode assemblie and negative plate and place dividing plate between this positive/negative plate by screw winding as insulator.Perhaps, positive/negative plate and the carrier ring in this electrode assemblie builds up lamination layer structure.Electrode assemblie places in the container, and the cap assemblies that has an outside terminal installs on this container, to form battery.
The cap assemblies of this secondary cell not only comprises sealing gasket that is used for airtight container and the outside terminal that is electrically connected on the electrode assemblie pole plate, and be included in the safety device that breaks when reaching predetermined pressure, so that the gas leak of collecting, thereby prevent battery explosion.
Yet; though this kind secondary cell is equipped with the protective circuit that detects and tackle super-high-current; but the gas that the inside battery chemical reaction is produced increases internal pressure, and when the battery operated undesired or reaction that meets accident, battery may explode so that burn.
A kind of technology is disclosed among Japan pending application 2000-223102 or Japanese pending application 1999-219692 or the Japanese pending application 1999-25935, in the cover plate on being installed to container, comprise the pressure relief valve that can when reaching predetermined pressure, break, the blast that causes with the abnormal operation that prevents owing to battery.
Yet there is the problem that is difficult for manufacturing in above-mentioned technology, because this pressure relief valve is to form in the manufacture process of cover plate, therefore can't expect unified operating characteristics.
In other words, because when making cover plate, pressure relief valve and cover plate adopt identical materials at one time, so this kind pressure relief valve of the prior art and cover plate have formed a kind of overall structure.For example, by using the HIGH PRESSURE TREATMENT of progressive die, process to cover plate made of aluminum with the pressure relief valve that cover plate is integrated in one.
Yet because the pressure relief valve of thin layer must be made simultaneously with cover plate, this habitual structure has difficulties in manufacture process.In addition, because the thickness disunity of produced valve, the pressure condition of then opening valve is also different, thereby can't obtain unified operating characteristics.
Especially, for the secondary cell in being used in hybrid electric vehicle (HEV), the problems referred to above show more outstandingly, because need high power and large scale, compare with low-yield battery, and the size of secondary cell that is used for HEV is bigger, and then the thickness of cover plate is thicker.
Because cover plate should integrate with valve, then manufacture process is comparatively difficult, and can't obtain the necessary characteristic of HEV battery.
Summary of the invention
The invention provides a kind of secondary cell, the structure of the safety valve by improving this secondary cell makes this battery can obtain unified operating characteristics, and is easy to install.The present invention also provides the cap assemblies in a kind of battery, and a kind of installation method of safety valve.
Comprise according to secondary cell of the present invention: electrode assemblie, this electrode assemblie comprise positive pole, negative pole and place dividing plate between this positive pole and the negative pole; Be used for this electrode assemblie is contained in interior container; Wherein this secondary cell has by classification process and is formed on hole in the side of this container, and is installed in the safety valve to open under predetermined pressure on the stepped surface in this hole.
This hole can be formed on a side of the lid pole plate of sealing container, and has the terminal that is electrically connected on the electrode assemblie on this lid pole plate.
This safety valve can be by making with this lid pole plate identical materials.
This safety valve can have the groove of the thin thickness that is formed at its front surface, to open under this predetermined pressure.
The stepped surface in this hole can be formed at the inner surface of this cover plate.
This secondary cell may further include the clamp structure on the side of the safety valve that is placed in this hole, to fix this safety valve.
This safety valve can closely be attached to this stepped surface, and this clamp structure closely is attached to a surface of this safety valve.
This clamp structure can closely be attached to this stepped surface, and this safety valve closely is attached to a surface of this clamp structure.
The central authorities of this clamp structure can have and are used for the hole that communicates with this hole, and this clamp structure is fixed by welding to this cover plate.
This clamp structure can be by making with this cover plate identical materials.
This electrode assemblie can, and be wound into the film structure, and this container has square structure, this secondary cell is used for drive motor.
Equally, comprise a cover plate, have the installing hole that forms by classification process according to the cap assemblies in the secondary cell of the present invention; Be installed in this cover plate and be electrically connected to positive terminal and the negative terminal that is arranged in the electrode assemblie in the container; And the safety valve that is arranged in the stepped surface in this hole, to install with this stepped surface contact.
In addition, the installation method of the safety valve of secondary cell of the present invention comprises: form a hole that has stepped surface in the side in this secondary cell cover plate; This safety valve is placed on the stepped surface in this hole; This safety valve is fixed to this cover plate.
Safety valve is fixed on the step of covering on the pole plate to be comprised: this safety valve closely is attached to this stepped surface, to have a surface that closely is attached to this safety valve with the clamp structure in this corresponding hole, hole, and by welding will with this clamp structure and the adjacent partial fixing of this cover plate.
Simultaneously, this safety valve is fixed on the step of covering on the pole plate to be comprised: with this safety valve closely be attached to have and corresponding hole, this hole with a surface of the clamp structure that keeps combined state, it is near that the clamp structure that is arranged in this hole that this safety valve and this safety valve are used closely adheres to this stepped surface, and by welding will with this clamp structure and the adjacent partial fixing of this cover plate.
Description of drawings
Fig. 1 is the cross sectional representation of secondary cell in the first embodiment of the invention.
Fig. 2 is the cross-section details figure of the a-quadrant of the secondary cell of first embodiment of the invention among Fig. 1.
Fig. 3 is the cross-sectional structure schematic diagram of the mounted safety valve of secondary cell in the second embodiment of the invention.
Fig. 4 is the cross-sectional structure schematic diagram of the mounted safety valve of secondary cell in the third embodiment of the invention.
Fig. 5 is the part-structure decomposition diagram of the safety valve of secondary cell in the fourth embodiment of the invention.
Fig. 6 is the cross-sectional structure schematic diagram of the safety valve of secondary cell in the fourth embodiment of the invention.
Fig. 7 is the part-structure decomposition diagram of the safety valve of secondary cell in the fifth embodiment of the invention.
Fig. 8 A, 8B, 8C and 8D are the installation method schematic diagram of the safety valve of secondary cell in the embodiment of the invention.
Fig. 9 is the installation method schematic diagram of the safety valve of secondary cell in the another embodiment of the present invention.
Embodiment
To describe embodiments of the invention in detail below, and express each example by accompanying drawing.With reference to accompanying drawing, following description embodiments of the invention.
Fig. 1 is the cross sectional representation of secondary cell in the first embodiment of the invention, and Fig. 2 is the cross-section details figure of the a-quadrant of the secondary cell of first embodiment of the invention among Fig. 1.
As shown in FIG., secondary cell comprises: comprise positive pole 11, negative pole 12 and the electrode assemblie 10 that places the dividing plate 13 between the above-mentioned both positive and negative polarity utmost point; Electrode assemblie 10 is held wherein container 14; Be fixed in the cap assemblies 30 of container 14 opening parts, to seal this container; Positive terminal 31 and negative terminal 32 stretch out from this cap assemblies 30, and by contact pin 15, are electrically connected with positive/negative plate; And be installed in safety valve 20 in the cap assemblies 30, discharge with the gas that inside battery is produced.
Container 14 adopts conducting metal to make, for example: and aluminium, aluminium alloy and nickel plating metal etc., and for to have hexagon or other shapes of inner space, with hold electrodes assembly 10.
In the present embodiment, electrode assemblie 10 has the film structure, and so that the dividing plate 13 in positive pole 11, negative pole 12 and the multilayer between both positive and negative polarity is wound into film shape, wherein the collector electrode of above-mentioned electrode adopts corresponding active material to apply.The anodal planar section 11a and the planar section 12a of negative pole are positioned at two ends relative on the electrode assemblie 10, and the planar section 11a of electrode assemblie 10 and 12a be installed to the two ends of container 14, keep vertical in order to make container 14, and cap assemblies is placed along the vertical direction.They are electrically connected on the positive terminal 31 and negative terminal 32 of cap assemblies by contact pin 15 (or collector electrode), and above-mentioned terminal lays respectively among the planar section 11a and 12a at electrode assemblie 10 two ends.
Particularly, cap assemblies 30 comprises the cover plate 33 that is installed to container 14 upper ends by sealing gasket, to keep state of insulation; And the anode and cathode terminals 31,32 that is installed to cover plate 33 both sides, above-mentioned electrode is electrically connected to respectively on planar section 11a, the 12a of electrode assemblie by contact pin.There is safety device 20 in the place in the middle of this cover plate 33.
The safety device 20 of present embodiment is prepared to keep separating with cap assemblies 30, and then is installed in the cap assemblies 30.
Safety device 20 comprises and is positioned at the hole 22 that has stepped surface 21 on the cover plate 33, by classification process; Safety valve on the stepped surface 21 in hole 22 is used for fully interception or discharges gas; And the clamp structure 24 that closely adheres to safety valve 23, be used for safety valve 23 is fixed to cover plate 33, to keep the state of insulation of safety valve 23 with respect to hole 22.
Therefore, cover plate allows safety valve 23 relatively easily to be installed on the cover plate, and need not to consider size and dimension.
Preferably, stepped surface 21 forms by classification process, and hole 22 has round-shaped, and is positioned at clamp structure 24 on the stepped surface 21 and safety valve 23 and also has round-shaped with stepped surface 21 corresponding sizes.
Preferably, consider that anode and cathode terminals 31,32 is in the both sides of cover plate 33, is positioned hole 22 central authorities of cover plate 33.
Constitute the structure of hole 22, safety valve and clamp structure 24 of safety device 20 and thickness without limits, and can said structure and thickness be adjusted according to the characteristic of battery and the internal pressure conditions of battery.
In addition, safety valve 23 has platy structure, and comprises the groove of thinner thickness on front surface, so that be easy to break under the pressure that increases progressively.
In addition, clamp structure 24 has circulus, and comprises and 22 corresponding holes 26, hole in the centre.This hole is positioned on the stepped surface, is fixed on the cover plate 33 in the mode by welding.
As mentioned above, clamp structure 24 is prepared earlier to separate with safety valve 23, is installed on the stepped surface 21 again.Perhaps,, form aggregate, make it be in combined state earlier, and then be installed in the stepped surface 21 in hole 22 with safety valve 23 by this clamp structure being fixed on a side of safety valve 23.
Fig. 3 is the second embodiment of the present invention, shows the safety valve 42 that directly is installed on the cover plate 33, separates preparation.
As shown in the figure, the safety device 40 of present embodiment has definite structure by following operation: form hole 44 by classification process, safety valve 42 is arranged to cover plate 33 is separated, this cover plate 33 is arranged on the stepped surface 46 in hole 44, and will be welded together with safety valve 42 with the part of cover plate adjacency by laser.
Preferably, the stepped surface 46 that is arranged in the hole 44 on the cover plate 33 has and the corresponding height of the thickness of safety valve 42, and when being in the hole 44 when safety valve 42, the sidepiece of cover plate has identical plane with safety valve.
Fig. 4 is the cross sectional representation of secondary cell in the third embodiment of the invention.As shown in the drawing, the safety device 60 of present embodiment has definite structure by following operation: attached on the safety valve 34, this safety valve is seated in the hole 62 on the cover plate 33 with clamp structure 66; The safety valve 64 that will be used for clamp structure 66 places the stepped surface 68 in hole 62; And, will be welded on the safety valve 64 with the part of cover plate 33 adjacency by laser.
Preferably, stepped surface 68 that forms by classification process and hole 62 have round-shaped, and are positioned at clamp structure 66 on the stepped surface and safety valve 64 and also have and measure-alike round-shaped of stepped surface 68.
Below Fig. 3 of do description and the label 42a among Fig. 4 and 64a are groove, and under the battery pressure that increases progressively, this groove is easy to break.As shown in the figure, can form groove 42a and 64a at the face of weld of safety valve 42 and 64.Scheme as an alternative, above-mentioned groove can be formed at the face of weld facing surfaces on.
Fig. 5 and Fig. 6 show the structure of the safety valve of fourth embodiment of the invention.As shown in the figure, in the 4th embodiment, hole 22 is used for stepped surface 21 is formed on the outer surface that is placed on 33 outer cover plates 33 of container, and the safety valve 83 of safety device 80 is inserted in the hole 22, and the mode by welding, this safety valve is fixed on the cover plate 33.
When cover plate 33 placed hole 22 fixedly, safety valve 83 fully kept closely contacting with stepped surface 21.
The same with above-mentioned safety valve, safety valve 83 has the groove 85 that is easy to break under the battery pressure that increases progressively, and forms the footing 87 of the welding thicker than the other parts of safety valve 83.
Therefore, the safety valve in the fourth embodiment of the invention 83 can be fixed on the cover plate 33 preferably.
Fig. 7 shows the structure of safety valve 93 in the fifth embodiment of the invention.As shown in the figure, the structure of the safety valve 93 among the 5th embodiment is identical with the structure of safety valve 83 among the 4th embodiment, but but is positioned at the inner surface of cover plate 33, promptly with above-mentioned first, second is the same with the 3rd embodiment, is positioned at the inside of container.
Simultaneously, Fig. 8 A to Fig. 8 D is the installation method flow chart of safety valve in the secondary cell in the one embodiment of the invention.In the structure that describes below,, safety valve is installed on the cover plate of cap assemblies by clamp structure shown in Figure 2.Referring to Fig. 8 A to Fig. 8 D, the installation process of safety valve is as follows in the secondary cell:
At first, utilize classification process that the front surface of lid pole plate 33 is handled, to form the hole 22 of different-diameter.Therefore, by two classification processes (seeing Fig. 8 A), cover plate 33 comprises the hole 22 with stepped surface.
After being formed at hole 22 on the cover plate 33, will be arranged in the safety valve 23 that cover plate 33 is separated on the stepped surface 21 in hole 22, then under the cell internal pressure that increases progressively, safety valve 23 can fully break, so that discharge gas.
Then, safety valve 23 is located away from cover plate 33 is prepared, according to the size of cover plate 33 or be used for the battery behavior of corresponding battery, this safety valve has different diameters and thickness.
Then, by ultrasonic waves welding,,, finish the installation (seeing Fig. 8 D) of safety device at last so that clamp structure 24 is fixed on the cover plate 33 to welding with the adjacent part of clamp structure 24 and cover plate 33.
Based on said process, with cap assemblies be separated the preparation safety valve 23 can be more or less freely be installed on the cover plate 33.
Simultaneously, as shown in Figure 9, when a surface of safety valve 23 is fixed on the clamp structure 24, with when combined state forms aggregate, the clamp structure 24 that is connected with safety valve 23 directly is formed on the stepped surface 21 in hole 22.Then, utilize laser welding, will be welded together with the adjacent part of clamp structure 24 and cover plate 33, thus safety device can more simply be installed.
Use effectively though secondary cell of the present invention can be used as hybrid electric vehicle (HEV) battery, battery herein needs the thickness of high-energy, large scale and cover plate to be about 3mm,, the purposes of secondary cell of the present invention but is not limited only to HEV.In other words, battery of the present invention also can be as other motor driven battery, for example: electric automobile, motor scooter, motorcycle and vacuum cleaner.
According to present embodiment, safety valve can separate preparation with cap assemblies, and then fixes, and this makes that safety valve can be easy to install, and need not to consider the size of cap assemblies.
In addition, because the separation of safety valve preparation makes safety valve to work stably, increased the reliability of battery.
Though some embodiments of the present invention have been described, those of ordinary skill in the art can do not deviate from principle of the present invention and spirit, the determined scope of claim with and be equal on the basis of replacement, the present invention is carried out conversion.
Claims (25)
1, a kind of secondary cell comprises:
Electrode assemblie comprises positive pole, negative pole and places dividing plate between this positive pole and the negative pole; And
Container is in being used for this electrode assemblie is contained in;
Wherein this secondary cell has by classification process and is formed on hole in the side of this container, and is installed in the safety valve to open under predetermined pressure on the stepped surface in this hole.
2, secondary cell as claimed in claim 1, wherein this hole is formed on a side of the cover plate that is used to seal this container, and this cover plate comprises the terminal that is electrically connected to this electrode assemblie.
3, secondary cell as claimed in claim 2, wherein this safety valve is by making with this cover plate identical materials.
4, secondary cell as claimed in claim 1, wherein this safety valve has the groove of the thin thickness that is formed at its front surface, to open under this predetermined pressure.
5, secondary cell as claimed in claim 2, wherein the stepped surface in this hole is formed at the inner surface of this cover plate.
6, secondary cell as claimed in claim 1 further comprises the clamp structure on the side of the safety valve that is placed in this hole, to fix this safety valve.
7, secondary cell as claimed in claim 6, wherein this safety valve closely is attached to this stepped surface, and this clamp structure closely is attached to a surface of this safety valve.
8, secondary cell as claimed in claim 6, wherein this clamp structure closely is attached to this stepped surface, and this safety valve closely is attached to a surface of this clamp structure.
9, secondary cell as claimed in claim 6, wherein the central authorities of this clamp structure have and are used for the hole that communicates with this hole, and this clamp structure is fixed by welding to this cover plate.
10, secondary cell as claimed in claim 9, wherein this clamp structure is by making with this cover plate identical materials.
11, secondary cell as claimed in claim 1, wherein this electrode assemblie is wound into the film structure, and this container has square structure.
12, secondary cell as claimed in claim 1, wherein this secondary cell is used for drive motor.
13, secondary cell as claimed in claim 2, wherein this hole is formed at the central authorities of this cover plate.
14, secondary cell as claimed in claim 1, wherein the thickness at this safety valve edge is thicker than the other parts of this safety valve.
15, as the secondary cell of claim 14, wherein this safety valve is formed at the outer surface of this cover plate, and this container of this cover plate for sealing also has the terminal that is electrically connected to this electrode assemblie.
16, as the secondary cell of claim 14, wherein this safety valve is formed at the inner surface of this cover plate, and this container of this cover plate for sealing also has the terminal that is electrically connected to this electrode assemblie.
17, a kind of cap assemblies of secondary cell comprises:
Cover plate has the installing hole that forms by classification process;
Be installed in this cover plate and be electrically connected to positive terminal and the negative terminal that is arranged in the electrode assemblie in the container; And
Be arranged in the safety valve of the stepped surface in this hole, to install with this stepped surface contact.
18, as the cap assemblies of the secondary cell of claim 17, wherein this safety valve has the groove of the thin thickness that is formed at front surface, to open under this predetermined pressure.
19,, further comprise the clamp structure of a side of the safety valve that is placed in this hole, to fix this safety valve as the cap assemblies of the secondary cell of claim 17.
20, as the cap assemblies of the secondary cell of claim 17, wherein this safety valve closely is attached to this stepped surface, and this clamp structure closely is attached to a surface of this safety valve.
21, as the cap assemblies of the secondary cell of claim 17, wherein this clamp structure closely is attached to this stepped surface, and this safety valve closely is attached to a surface of this clamp structure.
22, as the cap assemblies of the secondary cell of claim 17, wherein the central authorities of this clamp structure have and are used for the hole that communicates with this hole, and this clamp structure is fixed by welding on this cover plate.
23, a kind of method that the safety valve of secondary cell is installed may further comprise the steps:
Side at the cover plate of this secondary cell forms the hole that has stepped surface;
This safety valve is placed on the stepped surface in this hole; And
This safety valve is fixed to this cover plate.
24, as the method for the safety valve of the installation secondary cell of claim 23, the wherein said step that safety valve is fixed to this cover plate comprises:
This safety valve closely is attached to this stepped surface, will has a surface that closely is attached to this safety valve with the clamp structure in this corresponding hole, hole, and by welding will with this clamp structure and the adjacent partial fixing of this cover plate.
25, as the method for the safety valve of the installation secondary cell of claim 23, the wherein said step that safety valve is fixed to this cover plate comprises:
With this safety valve closely be attached to have and corresponding hole, this hole with a surface of the clamp structure that keeps combined state, it is near that the clamp structure that is arranged in this hole that this safety valve and this safety valve are used closely adheres to this stepped surface, and by welding will with this clamp structure and the adjacent partial fixing of this cover plate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040047011 | 2004-06-23 | ||
| KR1020040047011A KR100599748B1 (en) | 2004-06-23 | 2004-06-23 | Secondary battery and cap assembly and safety valve using the same and method for mounting safety valve |
| KR1020050047230 | 2005-06-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1713442A true CN1713442A (en) | 2005-12-28 |
| CN100372164C CN100372164C (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100796182A Active CN100372164C (en) | 2004-06-23 | 2005-06-23 | Secondary battery, cap assembly thereof and method of mounting safety valve therefor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100599748B1 (en) |
| CN (1) | CN100372164C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088103A (en) * | 2009-12-08 | 2011-06-08 | Sb锂摩托有限公司 | Rechargeable battery |
| CN102195024A (en) * | 2010-03-15 | 2011-09-21 | 新神户电机株式会社 | Secondary battery |
| CN103370812A (en) * | 2011-02-16 | 2013-10-23 | 新神户电机株式会社 | Secondary battery |
| CN107221624A (en) * | 2016-03-22 | 2017-09-29 | 三星Sdi株式会社 | Rechargeable battery |
| WO2020133662A1 (en) * | 2018-12-29 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Secondary battery and battery module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100759396B1 (en) * | 2005-12-29 | 2007-09-19 | 삼성에스디아이 주식회사 | Secondary battery |
| KR100908912B1 (en) * | 2008-06-03 | 2009-07-23 | (주) 파워옵틱스 | Safety ventilation assembly, manufacturing method thereof and electronical apparatus having it |
| KR101100913B1 (en) * | 2008-12-18 | 2012-03-09 | (주)이에스티 | Safety exhaust assembly, method for manufacturing same, and battery having safety exhaust assembly |
| KR101191657B1 (en) | 2010-07-19 | 2012-10-17 | 에스비리모티브 주식회사 | Battery module |
| KR101287103B1 (en) | 2011-02-22 | 2013-07-17 | 삼성에스디아이 주식회사 | Rechargeable battery |
| CN111600055B (en) * | 2020-05-08 | 2020-12-25 | 珠海泰坦新动力电子有限公司 | Valve insertion method |
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| MY122324A (en) * | 1998-02-03 | 2006-04-29 | Toyo Kohan Co Ltd | A method of forming a protection film for a safety valve element, a safety valve element which is coated with a protection film, a closing plate for battery using same and a closed battery using same. |
| KR100281461B1 (en) * | 1998-08-26 | 2001-02-01 | 장용균 | Safety valve device for lithium ion battery |
| TWI224881B (en) * | 2000-01-14 | 2004-12-01 | Sony Corp | Nonaqueous electrolyte solution secondary battery |
| CN2439106Y (en) * | 2000-08-23 | 2001-07-11 | 深圳市华为电气技术有限公司 | Accumulator with gas gathering device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088103A (en) * | 2009-12-08 | 2011-06-08 | Sb锂摩托有限公司 | Rechargeable battery |
| CN102088103B (en) * | 2009-12-08 | 2014-06-04 | 三星Sdi株式会社 | Rechargeable battery |
| CN102195024A (en) * | 2010-03-15 | 2011-09-21 | 新神户电机株式会社 | Secondary battery |
| US9065098B2 (en) | 2010-03-15 | 2015-06-23 | Shin-Kobe Electric Machinery Co., Ltd. | Secondary battery |
| CN102195024B (en) * | 2010-03-15 | 2015-09-30 | 新神户电机株式会社 | Secondary cell |
| CN103370812A (en) * | 2011-02-16 | 2013-10-23 | 新神户电机株式会社 | Secondary battery |
| CN107221624A (en) * | 2016-03-22 | 2017-09-29 | 三星Sdi株式会社 | Rechargeable battery |
| CN107221624B (en) * | 2016-03-22 | 2021-11-23 | 三星Sdi株式会社 | Rechargeable battery |
| WO2020133662A1 (en) * | 2018-12-29 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Secondary battery and battery module |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100599748B1 (en) | 2006-07-12 |
| KR20050121903A (en) | 2005-12-28 |
| CN100372164C (en) | 2008-02-27 |
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