CN201556648U - Top cap of rechargeable battery and packaging shell thereof - Google Patents
Top cap of rechargeable battery and packaging shell thereof Download PDFInfo
- Publication number
- CN201556648U CN201556648U CN2009200578124U CN200920057812U CN201556648U CN 201556648 U CN201556648 U CN 201556648U CN 2009200578124 U CN2009200578124 U CN 2009200578124U CN 200920057812 U CN200920057812 U CN 200920057812U CN 201556648 U CN201556648 U CN 201556648U
- Authority
- CN
- China
- Prior art keywords
- battery
- positive
- cover plate
- shell
- explosion
- 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 - Fee Related
Links
- 238000004806 packaging method and process Methods 0.000 title abstract description 5
- 239000004033 plastic Substances 0.000 claims abstract description 18
- 229920003023 plastic Polymers 0.000 claims abstract description 18
- 238000001746 injection moulding Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- 239000010935 stainless steel Substances 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000007747 plating Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000004880 explosion Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000035699 permeability Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000002991 molded plastic Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a structure of the top cap of a rechargeable battery, which comprises a positive terminal and a negative terminal of the battery, a cover plate and an explosion-protection structure arranged on the cover plate, wherein the cover plate adopts an injection molding plastic plate, is combined closely and used for fixing the positive terminal and the negative terminal, so that the upper surfaces of the positive terminal and the negative terminal expose out of the outer surface of the cover plate and are connected with an external circuit, and the lower surfaces are sealed inside the battery and connected with the positive terminal and the negative terminal of a battery cell. The utility model also discloses a packaging shell of a rechargeable battery employing the structure of the top cap. The utility model has light weight, and can meet the higher requirements of the battery on the leak tightness and pressure resistance of the packaging shell, so that the permeability of the trace aqueous vapor is greatly reduced; and when the internal pressure of the battery is too high, an automatic pressure releasing device is arranged, thereby releasing the pressure in time, and preventing the explosion of the battery; and the utility model has the advantages of simple structure, low manufacturing cost and easy manufacture.
Description
Technical field
The utility model relates to the rechargeable battery technical field, relates in particular to the technical field of rechargeable battery shell.
Background technology
Along with the development of technology, the application of various chargeable batteries constantly enlarges, and capacity is also increasing.Also more and more higher to the requirement of its packaging shell thereupon.
The packaging shell main material that adopts has stainless steel material, plastic material etc. at present.Stainless steel material intensity height can satisfy that the high capacity cell requirement is high pressure resistant, the requirement of high temperature.But its weight is big, matching requirements are high (generally wanting laser welding), cost is also high.The plastic casing cost is low, in light weight, and matching requirements are also lower.But at present general design top cover is lower with the bond strength of housing, can not satisfy the requirement of withstand voltage of battery to pack case, and plastics can not satisfy the permeability of steam, and inside battery requires to seal, the requirement of drying.
The utility model content
The design is primarily aimed at above problem, proposes a kind of new design.This design can be satisfied battery to the sealing of pack case, the requirement of anti-high internal pressure, and the also reduction greatly of the permeability of Trace Water Vapor, also has automatic release pressure when cell internal pressure is too high simultaneously, the function of prevention battery explosion.
In order to reach the foregoing invention purpose, the utility model is by the following technical solutions: a kind of cap structure of rechargeable battery, comprise the positive and negative pole of battery, cover plate and be located at blast resistance construction on the cover plate, described cover plate is the plastic plate of single injection-molded, combine closely and fixing described positive and negative pole, make the upper surface of positive and negative terminals expose to the cover plate outer surface and be connected with external circuit, the both positive and negative polarity that lower surface then is sealed in inside battery and electric core joins.
As another kind of scheme, can also in above-mentioned cap structure, set up a stainless steel substrates, described positive and negative pole and blast resistance construction is fixedly connected, and with the plastic injection-moulded injection moulding space that is filled between stainless steel substrates and positive and negative pole and blast resistance construction, the joint face of stainless steel substrates and positive and negative pole and blast resistance construction is respectively equipped with gasket seal.
Wherein a kind of mode of blast resistance construction is an explosion-proof apparatus, form by shell, chock, sealing ring and rupture pressure disc, described shell is one to offer the cylindrical shell of the pressure relief vent that is communicated with inside battery, the chock that leaves the exhaust passage is pressed on the inner bottom surface of shell to rupture pressure disc, sealing ring be arranged between outer casing inner wall and the chock or rupture pressure disc and shell bottom surface between.
The another kind of frame mode of blast resistance construction is the explosion-proof grooving that an annular is set on described cover plate.
A kind of rechargeable battery packing shell, comprise battery container, reinforcing ring, at least one reinforced sheet and adopted the cap structure of said structure form, the outer surface of battery container or inner surface spraying or plating one deck impermeable stratum, the reinforced sheet joggle is fixed in battery container and top cover between the two, and reinforcing ring is arranged between reinforced sheet and the described top cover.
Can satisfy battery in the time of the utility model light weight again to the sealing of pack case, the high requirement of resistance to pressure, the permeability of Trace Water Vapor is reduced greatly; Also be provided with the automatic releasing device of pressure when cell internal pressure is too high, in time release pressure prevents battery explosion; The utility model also has simple in structure, and this is low to generate product, easily the advantage of making.
Description of drawings
Fig. 1 is the cap structure schematic diagram that embodiment 1 is adopted.
Fig. 2 a, 2b are the explosion-proof apparatus structural representations.
Fig. 3 is the cap structure schematic diagram that embodiment 2 is adopted.
Fig. 4 is the cap structure schematic diagram that embodiment 3 is adopted.
Fig. 5 is the explosion-proof grooving structural representation that embodiment 3 is adopted.
Fig. 6 a, 6b are battery packages shell structure schematic diagrames.
Embodiment
The design of this top cover is fixed together the positive and negative terminals of battery and explosion-proof apparatus by the method for injection mo(u)lding.This is simple and reliable for structure.More reliable than comparing sealing with the fixing method of screw thread, weight is lighter, and cost is lower.As shown in Figure 1, the cap structure of this rechargeable battery comprises plastic plate 22, positive terminal 23, explosion-proof apparatus 26, negative terminal 28.
The structure of explosion-proof apparatus 6 as shown in Figure 2, it is made up of shell 26.1, chock 26.2, sealing ring 26.3 and rupture pressure disc 26.4.Shell 26.1 is cylinders that offer endoporus, sees the pressure relief vent 26.1.1 shown in the figure.Rupture pressure disc 26.4 is that a slice is easier to ruined thin slice, and its material and thickness can be selected as required.Rupture pressure disc 26.4 is placed on shell 26.1 inner bottom surfaces.Chock 26.2 is pressed on rupture pressure disc 26.4 inner bottom surface of shell 26.1.Chock 26.2 central authorities leave the exhaust passage.Sealing ring 26.3 is arranged between the inner hole wall of shell 26.1 and the chock, air tight to guarantee.Sealing ring also can be placed between the inner bottom surface of rupture pressure disc 26.4 and shell 26.12.When pressure that the pressure of inside battery can bear greater than rupture pressure disc 26.4, rupture pressure disc 26.4 is destroyed, gas can be discharged by pressure relief vent and through the exhaust passage of chock central authorities, thereby the pressure of inside battery is released, and has avoided the generation of battery explosion accident.Pressure relief vent 26.1.1 can be designed to different shapes as required, in case blocked by the foreign material of inside battery, makes explosion-proof apparatus lose explosion prevention function.
Embodiment 2
This structure is by stainless steel substrates 21; Injection-molded plastic piece 20,24,27; Explosion-proof apparatus 26; Positive terminal 23, negative terminal 28 and gasket seal 25,29,210 are formed, as shown in Figure 3.
During production, stainless steel substrates 21, positive terminal 23 (above be with gasket seal 210), explosion-proof apparatus 26 (above be with gasket seal 25) and negative terminal 28 (above be with gasket seal 29) are put into corresponding position, injection molding machine closed die then on the mould respectively.The mold clamping force of injection molding machine is pressed on gasket seal 210 between positive terminal 23 and the stainless steel substrates 21 during matched moulds, forms sealing effectiveness.Equally, gasket seal 25 is pressed between explosion-proof apparatus 26 and the stainless steel substrates 21; Gasket seal 29 is pressed between negative terminal 28 and the stainless steel substrates 21.Injection molding machine just forms unit of plastic 20,24,27 to the injection moulding space of plastics notes progressive die tool inside after cooling, die sinking then, simultaneously the fixed-site of all parts, forms the top cover of an integral body.Owing between stainless steel substrates 21 and positive terminal 23, explosion-proof apparatus 26 and the negative terminal 28 compacted gasket seal 25,29,210 is arranged, so the sealing property of whole top cover is very reliable.Eliminated the problem of the gas leakage of other ordinary constructions.The upper surface of positive and negative terminals 23,28 is exposed to the upper surface of top cover, and the positive negative conductor with battery outside external circuit is connected respectively, and lower surface is positioned at inside battery and joins with the both positive and negative polarity of electric core respectively, thereby forms a complete current circuit.
The structure of explosion-proof apparatus 26 is identical with embodiment 1, does not repeat them here.
Embodiment 3
Cap structure comprises plastic plate 22, positive terminal 23, negative terminal 28 as shown in Figure 4, plastic plate 22 fixed seal connection positive terminals and negative terminal 28.Total does not need explosion-proof apparatus, just is provided with the explosion-proof grooving 26c of annular on injection-molded plastic plate 22.Explosion-proof grooving 26c finishes when injection mo(u)lding simultaneously, does not need back processing.Because the thickness of explosion-proof grooving 26c place plastics is thinner than other places of injection-molded plastic plate 22, intensity is lower, so when the pressure of inside battery is big, can break from explosion-proof grooving 26c, form an air vent hole, the pressure of inside battery is released, thereby avoids the generation of battery explosion accident.
The shape of explosion-proof grooving 26c, size, and the degree of depth can design as required.
Embodiment 4
The design of entire cell pack case is as shown in Figure 6: total is made up of battery container 1, cap structure 2, reinforcing ring 3 and reinforced sheet 4.Wherein cap structure 2 is any structures among embodiment 1 or the embodiment 3.The method manufacturing of battery container 1 usefulness injection mo(u)lding infilters inside battery for fear of the micro-aqueous vapor in battery outside, the outer surface of battery container 1 or inner surface spraying or plating one deck impermeable stratum.The reinforced sheet 4 of when battery container 1 injection mo(u)lding, nuzzling.The effect of reinforced sheet 4 is the bond strengths that strengthen between battery container 1 and the cap structure.The quantity of reinforced sheet and position are determined as required.During assembling, battery container 1 can combine with ultra-sonic welded or other junctures with cap structure 2.Also can place gasket seal between the faying face of battery container 1 and cap structure 2 to improve sealing property.Reinforced sheet 4 on the battery container 1 can reach the upper surface of cap structure 2 by corresponding hole on the cap structure 2.And then put reinforcing ring 3.With welding method the head of reinforced sheet 4 and reinforcing ring 3 are welded together at last.Also can with the head of press-bending reinforced sheet 4 or in the head perforate of reinforced sheet 4, the method for latch nail makes the bond strength between cap structure 2 and the battery container 1 satisfy instructions for use then.
Claims (5)
1. the cap structure of a rechargeable battery, comprise the positive and negative pole of battery, cover plate and be located at blast resistance construction on the cover plate, it is characterized in that: described cover plate is the plastic plate of single injection-molded, combine closely and fixing described positive and negative pole, make the upper surface of positive and negative terminals expose to the cover plate outer surface and be connected with external circuit, the both positive and negative polarity that lower surface then is sealed in inside battery and electric core joins.
2. the cap structure of rechargeable battery according to claim 1, it is characterized in that: also comprise a stainless steel substrates, described positive and negative pole and blast resistance construction is fixedly connected, and with the plastic injection-moulded injection moulding space formation plastic plate that is filled between stainless steel substrates and positive and negative pole and blast resistance construction, the joint face of stainless steel substrates and positive and negative pole and blast resistance construction is respectively equipped with gasket seal.
3. the cap structure of rechargeable battery according to claim 1 and 2, it is characterized in that: described blast resistance construction is an explosion-proof apparatus, form by shell, chock, sealing ring and rupture pressure disc, described shell is one to offer the cylindrical shell of the pressure relief vent that is communicated with inside battery, the chock that leaves the exhaust passage is pressed on the inner bottom surface of shell to rupture pressure disc, sealing ring be arranged between outer casing inner wall and the chock or rupture pressure disc and shell bottom surface between.
4. the cap structure of rechargeable battery according to claim 1 is characterized in that: described blast resistance construction is the explosion-proof grooving of the annular that is provided with on described cover plate.
5. a rechargeable battery is packed shell, it is characterized in that: comprise battery container, reinforcing ring, at least one reinforced sheet and adopt the cap structure of claim 1 or 4, interior or the outer surface spraying of battery container or plating one deck impermeable stratum, the reinforced sheet joggle is fixed in battery container and top cover between the two, and reinforcing ring is arranged between reinforced sheet and the described top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200578124U CN201556648U (en) | 2009-06-03 | 2009-06-03 | Top cap of rechargeable battery and packaging shell thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200578124U CN201556648U (en) | 2009-06-03 | 2009-06-03 | Top cap of rechargeable battery and packaging shell thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201556648U true CN201556648U (en) | 2010-08-18 |
Family
ID=42616337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200578124U Expired - Fee Related CN201556648U (en) | 2009-06-03 | 2009-06-03 | Top cap of rechargeable battery and packaging shell thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201556648U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842687A (en) * | 2012-09-21 | 2012-12-26 | 天津力神电池股份有限公司 | Whole battery cover plate of lithium ion battery |
| CN106256030A (en) * | 2014-05-30 | 2016-12-21 | 松下知识产权经营株式会社 | Cylindrical shape lithium rechargeable battery |
| CN107093699A (en) * | 2017-05-05 | 2017-08-25 | 深圳市科达利实业股份有限公司 | A kind of battery cover plate structure and battery of can be heated short circuit and destruction rupture pressure disc |
| CN107799682A (en) * | 2016-09-02 | 2018-03-13 | 本田技研工业株式会社 | The shell structure of power equipment unit |
| CN110739416A (en) * | 2019-11-07 | 2020-01-31 | 多氟多新能源科技有限公司 | optimized novel lithium battery cover plate assembly |
| WO2021012912A1 (en) * | 2019-07-25 | 2021-01-28 | 宁德时代新能源科技股份有限公司 | Top cover assembly, secondary battery, and apparatus using battery |
-
2009
- 2009-06-03 CN CN2009200578124U patent/CN201556648U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842687A (en) * | 2012-09-21 | 2012-12-26 | 天津力神电池股份有限公司 | Whole battery cover plate of lithium ion battery |
| CN106256030A (en) * | 2014-05-30 | 2016-12-21 | 松下知识产权经营株式会社 | Cylindrical shape lithium rechargeable battery |
| US10305077B2 (en) | 2014-05-30 | 2019-05-28 | Panasonic Intellectual Property Mgmt Co., Ltd. | Cylindrical lithium-ion secondary battery |
| CN106256030B (en) * | 2014-05-30 | 2020-12-29 | 松下知识产权经营株式会社 | Cylindrical lithium ion secondary battery |
| CN107799682A (en) * | 2016-09-02 | 2018-03-13 | 本田技研工业株式会社 | The shell structure of power equipment unit |
| CN107799682B (en) * | 2016-09-02 | 2020-10-23 | 本田技研工业株式会社 | Housing structure of power equipment unit |
| CN107093699A (en) * | 2017-05-05 | 2017-08-25 | 深圳市科达利实业股份有限公司 | A kind of battery cover plate structure and battery of can be heated short circuit and destruction rupture pressure disc |
| CN107093699B (en) * | 2017-05-05 | 2023-05-19 | 深圳市科达利实业股份有限公司 | Battery cover plate structure capable of being heated to short circuit and damaging explosion-proof film and battery |
| WO2021012912A1 (en) * | 2019-07-25 | 2021-01-28 | 宁德时代新能源科技股份有限公司 | Top cover assembly, secondary battery, and apparatus using battery |
| US20220123417A1 (en) * | 2019-07-25 | 2022-04-21 | Contemporary Amperex Technology Co., Limited | Top cover assembly, secondary battery and apparatus using battery |
| EP3985785A4 (en) * | 2019-07-25 | 2022-08-31 | Contemporary Amperex Technology Co., Limited | Top cover assembly, secondary battery, and apparatus using battery |
| CN110739416A (en) * | 2019-11-07 | 2020-01-31 | 多氟多新能源科技有限公司 | optimized novel lithium battery cover plate assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201556648U (en) | Top cap of rechargeable battery and packaging shell thereof | |
| US20210194083A1 (en) | Battery, electronic device, and method for packaging battery | |
| JP5382205B2 (en) | Power storage device | |
| CN101267023B (en) | Plastic shell lithium ion battery and its making method | |
| CN212113760U (en) | Energy storage device | |
| CN110635071A (en) | Cylindrical battery and battery cap thereof | |
| JP2022047459A (en) | Button-type battery and manufacturing method of the same | |
| CN201191622Y (en) | Plastic case lithium ionic cell | |
| CN102208583B (en) | Safety valve for lithium ion power battery | |
| CN105977408B (en) | Battery case, battery battery core, battery and its assembly method | |
| CN202817116U (en) | Improved lithium-ion battery | |
| JP2009199756A5 (en) | ||
| CN201402821Y (en) | 9V square lithium battery package shell | |
| CN210073928U (en) | Cylindrical battery and battery cap thereof | |
| CN202019011U (en) | Safety valve for lithium ion power battery | |
| CN208208824U (en) | A kind of anti-bulge accumulator box | |
| CN2922138Y (en) | Safe explosion-proof hard case lithium ion secondary cell case | |
| CN205863229U (en) | A kind of lithium battery core casing | |
| CN201514962U (en) | Battery cap and battery thereof | |
| CN201562699U (en) | Cover cap of battery and battery thereof | |
| CN201681982U (en) | Anti-explosion cover plate of power lithium ion battery | |
| CN202167562U (en) | Integrated storage battery with heat-sealed terminal | |
| CN203617149U (en) | Cylindrical supercapacitor and shell body thereof | |
| CN201877522U (en) | Novel lithium battery and lithium battery pack | |
| CN212161885U (en) | Button cell with double protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170310 Address after: 510000 Guangdong City, Nansha District Province, the heart of the town of Victoria comfort street, No. 16 (self built) A4 plant Patentee after: GUANGZHOU LDB ELECTRONIC TECHNOLOGY CO., LTD. Address before: 510330 Haizhuqu District, Guangdong, Xingang East Road, No., Ya county garden, E202 Patentee before: Bao Xiongwei |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20180603 |