CN102339958A - Seal plate assembly for battery and battery having the same - Google Patents
Seal plate assembly for battery and battery having the same Download PDFInfo
- Publication number
- CN102339958A CN102339958A CN2010102373323A CN201010237332A CN102339958A CN 102339958 A CN102339958 A CN 102339958A CN 2010102373323 A CN2010102373323 A CN 2010102373323A CN 201010237332 A CN201010237332 A CN 201010237332A CN 102339958 A CN102339958 A CN 102339958A
- Authority
- CN
- China
- Prior art keywords
- battery
- panel assembly
- hush panel
- cover plate
- flange
- 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.)
- Granted
Links
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
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention provides a seal plate assembly for a battery and a battery having the seal plate assembly. The seal plate assembly is formed by riveting an upper insulating strip, a cover plate, a lower insulating strip and a pad together through a rivet which doubles as electrode terminals and penetrates through the upper insulating strip, the cover plate, the lower insulating strip and the pad, wherein, the cover plate (4) is provided with a first recess (4a) in the center, the main part of the upper insulating strip (3) is embed in the first recess (4a). The seal plate assembly is characterized in that: extending outward from the peripheral edge of the main part of the upper insulating strip along with the upper surface of the cover plate (4), a flange (3c) is formed. According to the invention, external short circuit in the charge and discharge process of the battery can be effectively prevented, fire and explosion of the battery are avoided, and the safety of the battery is improved.
Description
Technical field
The battery that the present invention relates to a kind of ad hoc structure is with hush panel assembly and the battery that possesses this hush panel assembly.
Background technology
In recent years, along with portable electric appts popularizing rapidly of notebook computer, mobile phone, portable data assistance (PDA) etc. for example, as its power supply, the exploitation that has high capacity density and be easy to the lithium rechargeable battery of miniaturization more and more comes into one's own.From in light weight, the viewpoint that is easy to carry about with one of portable electric appts, also require the thinner and miniaturization of cell thickness as its power supply.
In general, lithium rechargeable battery comprises: have in the upper end peristome battery case, split the hush panel assembly that oral area seals and be contained in electrode group and the electrolyte in the battery case.Wherein, the hush panel assembly is to comprise rivet, top insulating trip, cover plate, bottom insulating trip and pad and the assembly that these parts is riveted together successively and forms through rivet.And then adopt the mode of laser welding that the hush panel assembly is connected with battery case, be assembled into lithium rechargeable battery.In the hush panel assembly; Aluminum cover plate and battery case link to each other with positive pole; Rivet is situated between and is linked to each other with negative pole by pad; The top insulating trip is with rivet and cover plate insulation, and the bottom insulating trip insulate pad and cover plate, thereby forms on the cover plate except be anodal form as other positions the rivet of negative terminal.
For the assembling of improving the hush panel assembly, the internal short-circuit of avoiding taking place battery, descending many time aspect the structural design of hush panel assembly at present.For example, disclose the up-small and down-big rivet of a kind of diameter in the patent documentation 1, can run through the lithium ion battery cover board assembly from bottom to up, greatly reduced the difficulty of battery assembling.In addition, the edge that discloses one end of insulating trip in the bottom in the patent documentation 2 is provided with projection, thereby the negative wire of avoiding connecting on the pad contacts with cover plate or battery container inwall and causes internal short-circuit of battery.
But; Because the thickness of battery is more and more thinner, when the hush panel assembly of battery and battery case were carried out laser welding, the weld seam and the distance between the rivet of hush panel assembly were also more and more nearer; Laser shone on the insulating trip easily when this made laser welding; Thereby plastic insulating trip is deformed, and rivet is prone to contact with cover plate in charge and discharge process, causes the external short circuit of battery.In order to overcome this problem; Disclose in the patent documentation 3 around the rivet of hush panel assembly central portion inserts with the hole second recess has been set; The top insulating trip of insulating resin system is arranged at (referring to Fig. 1) in second recess; Thereby laser shines directly on the resin of insulating trip when avoiding laser welding, has prevented the distortion of insulating resin to a certain extent.
In the battery that adopts the top lasers welding manner, because close together between the welding position of top insulating trip and battery, even laser does not shine directly on the insulating trip, the heat that laser welding produced also may cause the fusing of insulating trip.Therefore; A kind of hush panel assembly is disclosed in the patent documentation 4; It is provided with step on the side around the metal substrate (cover plate), utilize this ledge structure, and cover plate partly is built in the battery case; Can take like this around the welding side laser welding mode, thereby the plastic insulation sheet on the cover sheet is not by laser damage.
Except the above-mentioned safety issue of bringing by the distortion of insulating trip; Another problem that exists at present is; Along with the development of battery miniaturization and slimming, the rivet of double as negative terminal becomes more and more littler, and the safety issue in the consequent charge and discharge process also becomes increasingly conspicuous.Particularly for square lithium ion secondary battery; When the battery that assembles is discharged and recharged; The mensuration terminal of charging/discharging apparatus has deviation slightly with respect to the position of battery, just very easily causes to discharge and recharge terminal and contact with cover plate as positive terminal simultaneously with as the rivet of negative terminal, so the external short circuit of battery takes place most probably; The performance that causes battery is bad, even causes potential safety hazards such as battery heating, blast on fire.
Patent documentation 1: Chinese utility model patent ZL200520034597.8
Patent documentation 2: Chinese utility model patent ZL200520036580.6
Patent documentation 3: TOHKEMY 2004-303739
Patent documentation 4: Chinese utility model patent ZL200520121499.8
Summary of the invention
The object of the invention is to provide a kind of battery to use the hush panel assembly, and it can prevent effectively that battery from external short circuit taking place in charge and discharge process, avoid battery that blast on fire takes place, thereby has improved the fail safe of battery.In addition, the present invention also provides the battery that possesses above-mentioned hush panel assembly.
In order to achieve the above object; Basic design of the present invention is the top insulating trip that in the hush panel assembly, adopts ad hoc structure; Specifically; The neighboring of insulating trip is provided with a flange on top, even if the mensuration terminal of charging/discharging apparatus generation skew can not touch rivet and cover plate simultaneously yet like this, thereby greatly reduces the incidence of external short-circuit of battery.And, being embedded in the recess of lid surface through top insulating trip above-mentioned ad hoc structure, the top insulating trip is not yielding in the process of laser welding yet.
Battery of the present invention is that rivet through the double as electrode terminal runs through top insulating trip, cover plate, bottom insulating trip and pad successively and they are riveted together and forms with the hush panel assembly; Said cover plate is formed with first recess at central portion; The main part of said top insulating trip is entrenched in this first recess; It is characterized in that the upper surface from the neighboring of said main part along said cover plate reach out to be formed with flange.
Outward extending width is more than the 1mm to preferred said flange from said neighboring on the thickness direction of battery, but does not exceed the edge of said cover plate on the cell thickness direction.
The neighboring shape of preferred said flange is any shape in rectangle, round rectangle, circle, the ellipse.
Preferred said cover plate is formed with shape and corresponding second recess of said flange around said first recess, said flange is embedded in said second recess.
More preferably, be formed with on the neighboring of said flange perpendicular to the surface of flange to the flange of upper process.
More preferably, the bottom of the side, edge of said cover plate is provided with the step that caves inward.
More preferably, the bottom of the side, edge of said cover plate is provided with the step that caves inward.
In addition; Secondary cell of the present invention possesses: the hush panel assembly that have the battery case of peristome in the upper end, said peristome is sealed and be contained in electrode group and the electrolyte in the said battery case; It is characterized in that said hush panel assembly is above-mentioned hush panel assembly.
Preferably when the bottom of the side, edge of said cover plate is provided with the step that caves inward; Said step engages with the peristome of said battery case; The mode laser welding that said hush panel assembly and said battery case are taked side welding together, weld seam is positioned at the position that said step engages with the peristome of said battery case.
According to the present invention, can prevent effectively that terminal touches rivet to battery simultaneously and external short circuit takes place cover plate owing to discharging and recharging at charge and discharge process, avoid battery that blast on fire takes place, improve the fail safe of battery.
Description of drawings
Fig. 1 representes the longitudinal sectional drawing of the structure of hush panel assembly of the prior art.
Fig. 2 representes the longitudinal sectional drawing of structure of the hush panel assembly of an embodiment of the invention.
Fig. 3 is the stereogram of the top insulating trip in the hush panel assembly of schematically presentation graphs 2.
Fig. 4 is the vertical view of hush panel assembly shown in Figure 2.
Fig. 5 representes the longitudinal sectional drawing of structure of the hush panel assembly of another embodiment of the invention.
Fig. 6 representes the longitudinal sectional drawing of structure of the hush panel assembly of another execution mode of the present invention.
Fig. 7 representes the longitudinal sectional drawing of structure of the hush panel assembly of another execution mode of the present invention.
Fig. 8 representes to possess the sketch map of the battery of hush panel assembly of the present invention.
Symbol description
1 hush panel assembly
2 rivets
3 top insulating trips
The main part of 3a top insulating trip
The 3b neighboring
The 3c flange
The 3d flange
4 cover plates
4a first recess
4b second recess
The 4c step
5 bottom insulating trips
6 pads
7 steam vents (safety valve)
8 liquid injection port
9 battery cases
The peristome of 9a battery case
10 batteries
Embodiment
Below, come to carry out bright specifically with hush panel assembly and the battery that possesses this hush panel assembly in conjunction with accompanying drawing to battery of the present invention.But hush panel assembly of the present invention and battery are not limited to following specific embodiment.
< hush panel assembly >
(execution mode 1)
At first, with reference to Fig. 2～Fig. 4 the battery of execution mode 1 of the present invention concrete form with the hush panel assembly is described.
Fig. 2 is the longitudinal sectional drawing of structure of the hush panel assembly 1 of expression an embodiment of the invention.Fig. 3 is a stereogram of schematically representing the top insulating trip 3 in this hush panel assembly 1.Fig. 4 is the vertical view of this hush panel assembly 1.
The battery of Fig. 2 comprises rivet 2, top insulating trip 3, cover plate 4, bottom insulating trip 5 and pad 6 with hush panel assembly 1, and the rivet 2 through the double as electrode terminal is riveted together top insulating trip 3, cover plate 4, bottom insulating trip 5 and pad 6 successively and forms.Cover plate 4 is formed with the first recess 4a at central portion.The main part 3a of top insulating trip 3 is entrenched among this first recess 4a, and the central authorities of main part have the hole portion that is used to insert rivet 2, and the neighboring 3b of main part extends to the surface of cover plate 4 vertically upward.As shown in Figures 2 and 3, in this execution mode, top insulating trip 3 is characterised in that, the upper surface from the neighboring 3b of main part 3a along cover plate 4 reach out to be formed with flange 3c, and this flange 3c covers on the upper surface of cover plate 4 closely.
As shown in Figure 4, the width of top insulating trip on the cell thickness direction that possesses flange 3c is D
1, the width of cover plate 4 on directions X is D
0The D here
0Be the distance of cover plate between the both sides of the edge of directions X, D
1Be the distance of flange 3c between the both sides of the edge of directions X of top insulating trip.Width D when the top insulating trip
1Width D greater than cover plate
0The time, the edge of flange 3c can expose outside the battery side, causes assembling and appearance variation, therefore will be with the width D of top insulating trip
1Be set at width D smaller or equal to cover plate
0
And then; Flange 3c goes up from the scope of the outward extending width of neighboring 3b (below be sometimes referred to as " width of flange ") at the thickness direction (directions X among Fig. 4) of battery and sets aptly according to the size of cell thickness; But be generally the scope of 1mm～1cm, be preferably 2mm～8mm.If the width of flange is too small; Then can not in charge and discharge process, play and guarantee to discharge and recharge the effect that terminal does not contact with rivet and cover plate simultaneously; Therefore its lower limit is set at 1mm; If the width of flange is excessive, in the laser beam welding of hush panel assembly and battery case, receive easily sometimes laser and generation thereof heat influence and deform.Therefore, considering from this point, will be not exceed the edge of cover plate on the cell thickness direction, i.e. D with the width setup of flange also
1≤D
0
In addition, when adopting laser side welding manner to connect battery case and hush panel assembly, can be with the width D of top insulating trip
1Suitably be set at bigger value, for example equal the width D that its higher limit is a cover plate
0But when adopting the mode of laser welded top; For fear of top insulating trip in laser beam welding, receive laser and generation thereof heat influence and deform; Preferably between the edge of flange and cover plate, keep certain gap, 1～3mm for example is with the influence of guaranteeing not receive the irradiation of laser or receiving its sweating heat.
In the insulating trip of the top of this execution mode shown in Figure 3, the shape of the neighboring of flange is illustrated as round rectangle, but is not limited thereto, and also can be any shape in rectangle, circle, the ellipse.When the neighboring of flange is shaped as circle or ellipse, above-mentioned width D
1Be meant the ultimate range of both sides circular arc on the cell thickness direction of the Width of flange.
Hush panel assembly according to this execution mode; Because the neighboring of the main part of insulating trip is provided with flange 3c on top; Can guarantee to discharge and recharge in the charge and discharge process terminal does not effectively contact with cover plate with rivet simultaneously; Thereby avoided the external short circuit of battery, improved battery production process safe property greatly.
(execution mode 2)
Secondly, with reference to Fig. 5 the structure of the hush panel assembly 1 of execution mode 2 of the present invention is described.For giving identical indicia with the identical parts of hush panel assembly, and omit its explanation with the battery of execution mode 1.
Hush panel assembly according to this execution mode; Through the shape corresponding second recess 4b of further setting on the cover board with flange; And the flange 3c that makes the top insulating trip is embedded in this second recess, thereby makes that laser can not shine directly on the flange when the hush panel assembly is carried out laser welding; The distortion of the top insulating trip of having avoided causing by laser welding, thus can further guarantee the fail safe in the charge and discharge process.
(execution mode 3)
In addition, with reference to Fig. 6 the structure of the hush panel assembly 1 of execution mode 3 of the present invention is described.For giving identical indicia with the identical parts of hush panel assembly, and omit its explanation with the battery of execution mode 1.
For the hush panel assembly 1 of execution mode 3, be that with the difference of execution mode 2 on the neighboring of flange 3c, further be formed with perpendicular to the surface of flange to the flange 3d of upper process, its height is a little more than the flange surface.Flange 3d can be provided with in the neighboring of flange 3c continuously, also can be provided with discontinuously.
Hush panel assembly according to this execution mode; Neighboring through the flange of insulating trip on top is provided with flange 3d; Limited of slip or the displacement of the mensuration terminal of charging/discharging apparatus on the flange surface; Discharge and recharge terminal in the time of can preventing to measure and contact simultaneously with cover plate, thereby can further guarantee the fail safe in the charge and discharge process with rivet.
(execution mode 4)
In addition, with reference to Fig. 7 the structure of the hush panel assembly 1 of execution mode 4 of the present invention is described.For giving identical indicia with the identical parts of hush panel assembly, and omit its explanation with the battery of execution mode 1.
According to the hush panel assembly of this execution mode, through side, edge step is set at cover plate, more help adopting the mode of laser side welding to connect battery case and hush panel assembly.Because the heat of laser and generation thereof is less to the influence of top insulating trip in this welding manner, therefore can prevent the distortion of top insulating trip.And then, owing to can the width setup of top insulating trip be got broad (for example equaling its higher limit is the cover plate width), contact the time with rivet with cover plate thereby can further prevent to discharge and recharge terminal, guarantee the fail safe in the charge and discharge process.
More than, carried out the explanation of exemplary through the structure of 1～4 pair of hush panel assembly 1 of the present invention of execution mode.But hush panel assembly of the present invention is not limited to above-mentioned concrete form, also can the key element in the above-mentioned execution mode be carried out independent assortment.For example, the ledge structure of edge side of the neighboring of the structure of second recess of cover plate central authorities, flange with structure or cover plate of flange all can be applicable to above-mentioned any execution mode alone or in combination.
For the material that constitutes the top insulating trip in the above-mentioned hush panel assembly, so long as not yielding and to have a macromolecular material of insulating properties just passable, have no particular limits, but preferably constitute by polytetrafluoroethylene (PFA).In addition, in hush panel assembly of the present invention, top insulating trip and bottom insulating trip can be shaped separately through mould, also can directly be injected on the cover plate.In order to reduce process number, preferably top insulating trip and bottom insulating trip are passed through the integrated through injection molding moulding.
<battery that possesses the hush panel assembly >
Below, with reference to Fig. 8 the square battery 10 that possesses hush panel assembly 1 of the present invention is described.Battery 10 of the present invention possesses: have in the upper end peristome battery case 9, split hush panel assembly 1 that oral area seals, be contained in electrode group and electrolyte (not shown) in the battery case 9.Wherein, the electrode group is the flat electrode group that positive pole, barrier film and negative pole are reeled or cascaded.After inserting this electrode group in battery case 9, through laser welding with 1 seam of hush panel assembly on the peristome 9a of battery case 9, and seal after injecting electrolyte through the liquid injection port on the cover plate 48, thereby be assembled into square lithium rechargeable battery 10.When abnormal conditions such as battery is short-circuited, its inner gas that produces can be discharged into the outside of battery from steam vent (safety valve) 7.
In addition; More preferably, when the bottom of the side, edge of cover plate was provided with the step that caves inward, the mode laser welding that the peristome of said hush panel assembly and said battery case is taked the side welding together; At this moment; Said step engages with the peristome of said battery case, and weld seam is formed at the side of battery, is positioned at the position that step 4c engages with the peristome 9a of battery case.
In each above execution mode, though be the secondary cell that example has been introduced hush panel assembly of the present invention and possessed this hush panel assembly with the lithium rechargeable battery of square, the present invention is not limited to this.Above-mentioned hush panel assembly is through also going for the battery of other profiles or other kinds, for example cylinder-type nickel-metal hydride battery, platypelloid type lithium ion battery etc. after suitably being out of shape.
In addition,, also be not limited thereto, also can adopt solder technology well known in the art, for example arc welding etc. though among the present invention be that example is illustrated for the method with hush panel assembly and battery case welding with the laser welding.
More than, through concrete execution mode the present invention having carried out detailed explanation, the present invention is not limited to above-mentioned concrete example certainly.Those skilled in the art can expect various distortion or modification in the record category of accompanying Claim book, these variation and modification also belong to protection scope of the present invention certainly.
Claims (10)
1. a battery is used the hush panel assembly; It is that rivet through the double as electrode terminal runs through top insulating trip, cover plate, bottom insulating trip and pad successively and they are riveted together and forms; Said cover plate (4) is formed with first recess (4a) at central portion; The main part (3a) of said top insulating trip (3) is entrenched in this first recess (4a), it is characterized in that, the upper surface from the neighboring (3b) of said main part (3a) along said cover plate (4) reach out to be formed with flange (3c).
2. battery according to claim 1 is used the hush panel assembly, it is characterized in that, outward extending width is more than the 1mm to said flange from said neighboring on the thickness direction of battery, but does not exceed the edge of said cover plate on the cell thickness direction.
3. battery according to claim 1 is used the hush panel assembly, it is characterized in that, the neighboring shape of said flange is any shape in rectangle, round rectangle, circle, the ellipse.
4. battery according to claim 1 is used the hush panel assembly; It is characterized in that; Said cover plate is formed with shape and corresponding second recess of said flange (3c) (4b) around said first recess (4a), said flange (3c) is embedded in said second recess (4b).
5. use the hush panel assembly according to each described battery in the claim 1～4, it is characterized in that, be formed with on the neighboring of said flange perpendicular to the surface of flange to the flange (3d) of upper process.
6. use the hush panel assembly according to each described battery in the claim 1～4, it is characterized in that, the bottom of the side, edge of said cover plate is provided with the step (4c) that caves inward.
7. battery according to claim 5 is used the hush panel assembly, it is characterized in that, the bottom of the side, edge of said cover plate is provided with the step (4c) that caves inward.
8. use the hush panel assembly according to each described battery in the claim 1～4, it is characterized in that, said top insulating trip and said bottom insulating trip are through the integrated through injection molding moulding.
9. secondary cell; It possesses: the hush panel assembly that have the battery case of peristome in the upper end, said peristome is sealed and be contained in electrode group and the electrolyte in the said battery case; It is characterized in that said hush panel assembly is that each described battery is used the hush panel assembly in the claim 1～8.
10. battery according to claim 9; It is characterized in that; When the bottom of the side, edge of said cover plate is provided with the step (4c) that caves inward; Said step (4c) engages with the peristome (9a) of said battery case, the mode laser welding that said hush panel assembly and said battery case are taked side welding together, weld seam is positioned at the position that said step (4c) engages with the peristome (9a) of said battery case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010237332.3A CN102339958B (en) | 2010-07-23 | 2010-07-23 | Seal plate assembly for battery and battery having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010237332.3A CN102339958B (en) | 2010-07-23 | 2010-07-23 | Seal plate assembly for battery and battery having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102339958A true CN102339958A (en) | 2012-02-01 |
| CN102339958B CN102339958B (en) | 2014-05-28 |
Family
ID=45515556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010237332.3A Active CN102339958B (en) | 2010-07-23 | 2010-07-23 | Seal plate assembly for battery and battery having the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102339958B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637835A (en) * | 2012-02-28 | 2012-08-15 | 天津市捷威动力工业有限公司 | Cover plate structure and battery case for lithium ion battery and lithium ion battery |
| CN110649206A (en) * | 2019-09-29 | 2020-01-03 | 惠州亿纬锂能股份有限公司 | Explosion-proof valve component, top cover and battery |
| CN110729421A (en) * | 2019-11-19 | 2020-01-24 | 凌帕新能源科技(上海)有限公司 | Battery cover plate assembly, battery cell assembling method and connecting sheet |
| CN113764790A (en) * | 2021-10-08 | 2021-12-07 | 深圳市聚和源科技有限公司 | Covering assembly and battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147699A (en) * | 1995-07-28 | 1997-04-16 | 三洋电机株式会社 | Laser sealing battery |
| US6132900A (en) * | 1996-12-25 | 2000-10-17 | Matsushita Electric Industrial Co., Ltd. | Method of production of non-aqueous electrolyte battery and seal plate thereof |
| CN1411082A (en) * | 2001-10-02 | 2003-04-16 | 日电东金栃木有限公司 | Closed cell |
| CN2859815Y (en) * | 2005-12-29 | 2007-01-17 | 比亚迪股份有限公司 | Battery cover sheet and electric battery |
| CN201789005U (en) * | 2010-07-23 | 2011-04-06 | 松下能源(无锡)有限公司 | Battery sealing plate component and battery with same |
-
2010
- 2010-07-23 CN CN201010237332.3A patent/CN102339958B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147699A (en) * | 1995-07-28 | 1997-04-16 | 三洋电机株式会社 | Laser sealing battery |
| US6132900A (en) * | 1996-12-25 | 2000-10-17 | Matsushita Electric Industrial Co., Ltd. | Method of production of non-aqueous electrolyte battery and seal plate thereof |
| CN1411082A (en) * | 2001-10-02 | 2003-04-16 | 日电东金栃木有限公司 | Closed cell |
| CN2859815Y (en) * | 2005-12-29 | 2007-01-17 | 比亚迪股份有限公司 | Battery cover sheet and electric battery |
| CN201789005U (en) * | 2010-07-23 | 2011-04-06 | 松下能源(无锡)有限公司 | Battery sealing plate component and battery with same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637835A (en) * | 2012-02-28 | 2012-08-15 | 天津市捷威动力工业有限公司 | Cover plate structure and battery case for lithium ion battery and lithium ion battery |
| CN110649206A (en) * | 2019-09-29 | 2020-01-03 | 惠州亿纬锂能股份有限公司 | Explosion-proof valve component, top cover and battery |
| CN110729421A (en) * | 2019-11-19 | 2020-01-24 | 凌帕新能源科技(上海)有限公司 | Battery cover plate assembly, battery cell assembling method and connecting sheet |
| CN113764790A (en) * | 2021-10-08 | 2021-12-07 | 深圳市聚和源科技有限公司 | Covering assembly and battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102339958B (en) | 2014-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100448092C (en) | Secondary battery | |
| EP3091593B1 (en) | Pouch-type secondary battery including sealing part having recess | |
| US7541110B2 (en) | Secondary battery | |
| KR101106324B1 (en) | Pouch type battery | |
| EP1901365B1 (en) | Battery cell with small groove at surface and battery pack including the same | |
| US8323825B2 (en) | Cap assembly and secondary battery using the same | |
| CN101170165B (en) | Prismatic can type lithium ion rechargeable battery | |
| JP4537361B2 (en) | Cylindrical lithium ion secondary battery | |
| US20190312237A1 (en) | Battery Cell Having Recessed Portion Formed In Connection Region Between Receiving Units | |
| US9559341B2 (en) | Rechargeable battery having a vent unit at a joint in a cap plate | |
| TW201526349A (en) | Prismatic battery cell having battery case comprising two or more members | |
| KR101136288B1 (en) | Battery pack | |
| JP4769780B2 (en) | Secondary battery | |
| CN102339958B (en) | Seal plate assembly for battery and battery having the same | |
| CN202217712U (en) | Seal plate assembly for battery and battery with seal plate assembly | |
| US9209436B2 (en) | Secondary battery | |
| KR101233459B1 (en) | Secondary Battery | |
| JP3584656B2 (en) | Method of manufacturing sealing plate for prismatic nonaqueous electrolyte battery | |
| KR20140002118A (en) | Easy assembling all-in-one secondary battery module | |
| KR101222301B1 (en) | Secondary battery | |
| KR101223522B1 (en) | Rechargeable battery | |
| CN201789005U (en) | Battery sealing plate component and battery with same | |
| KR100874455B1 (en) | Battery module and its manufacturing method | |
| CN100466360C (en) | Cylindrical lithium rechargeable battery | |
| KR101908587B1 (en) | Easy assembling Secondary battery module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |