CN201091032Y - Battery current collection body - Google Patents
Battery current collection body Download PDFInfo
- Publication number
- CN201091032Y CN201091032Y CNU2007201812469U CN200720181246U CN201091032Y CN 201091032 Y CN201091032 Y CN 201091032Y CN U2007201812469 U CNU2007201812469 U CN U2007201812469U CN 200720181246 U CN200720181246 U CN 200720181246U CN 201091032 Y CN201091032 Y CN 201091032Y
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- battery current
- current collector
- bulge
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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
Abstract
The utility model discloses a battery current collector whose seal ring is a rotator; a bump structure raised toward the seal ring is arranged on a bottom cover of the collector and is used to support the seal ring when the ring falls off due to the rupture of an anti-explosive slot, so that a gas discharge channel which communicates an rupture opening of the seal ring with a gas discharge hole on the bottom cover is formed. As the seal ring is a rotator, the mass distribution of the seal ring in the injection molding process is more uniform so as to effectively prevent the problem that the seal ring in the prior art is prone to cracking, prolong service life and improve reliability. Moreover, as the thickness of the seal ring is relatively reduced, the interior of the battery is provided with a larger active substance filling space to significantly improve the battery power capacity.
Description
Technical field
The utility model relates to the sealing and the explosion-proof field of battery, particularly a kind of collector body structure of battery.
Background technology
Collector body is the important structure in the battery, and its effect mainly comprises three aspects: the one, and the electric current of collecting and outwards carrying the inside battery negative pole partly to produce; The 2nd, sealing, the soon closure of openings of battery container bottom; The 3rd, safety anti-explosive prevents that battery from blasting because of its internal gas pressure is too high.
Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the structural representation of the battery current collector of prior art; Fig. 2 is the structural representation of sealing ring in the collector body shown in Figure 1; Fig. 3 is the upward view of sealing ring shown in Figure 2.
Collector body generally includes sealing ring 11, and sealing ring 11 is arranged at the bottom of battery container (not shown), and its annular sidewall 111 can closely cooperate with the internal face of battery container, so that the bottom of battery is sealed.The inside battery that fastener 13 is plugged in, and centre bore 112 (not shown in figure 1)s of passing sealing ring 11, and keep liquid sealing between the two.The fixedly connected bottom 12 in the bottom of fastener 13, the electric current that can collect and outwards carry the inside battery active material to be produced.Bottom 12 is positioned at the bottom of sealing ring 11, and has suitable gap between the sealing ring 11, and sealing ring 11 is pressed on the madial wall of described battery container bottom with its marginal portion.
As mentioned above, collector body important function is a safety anti-explosive.As everyone knows, its gas inside pressure might unusual increase in the battery use, and reason comprises: have impurity, battery short circuit or battery abuse etc. such as charged in the active material of inside battery.In case the inside battery gas pressure increases unusually, promptly might cause battery explosion.In order to guarantee safety, must take measures described gas release to outside.
The sealing ring 11 of prior art comprises primary flat 113, and the center of primary flat 113 is provided with center column 114, and center column 114 has the centre bore 112 that connects sealing ring 11 vertically.The edge of primary flat 113 is provided with annular sidewall 111, and annular sidewall 111 is positioned at the below of primary flat 113.
For reaching explosion-proof purpose, sealing ring 11 generally includes at least one weak part of being located at its primary flat 113 115, and its intensity is lower than other positions of primary flat 113.The inside battery gas pressure unusual increase reach battery explosion pressure before, weak part 115 can rupture, the gas of inside battery thereby can discharge from breach, and drain into outside batteries via the bleeder port on the bottom 12 121.Bleeder port 121 should be provided with away from the center of bottom 12, usually it is arranged near the edge of bottom 12, and the end of the holddown spring of power consumption equipment stretches in the bleeder port 121 to avoid in use, and influence is normally used.Weak part 115 is normally around the explosion-proof ditch of the annular of sealing ring 11 centre bores 111.
After weak part 115 fractures, owing to lost support, sealing ring 11 specifically its primary flat 113 can move to bottom 12 directions under inside battery gas promotes, and fit tightly on bottom 12, thereby the bleeder port 121 on the shutoff bottom 12 very easily, thereby block disappointing passage, therefore collector body will not have the effect of safety anti-explosive, very easily cause the accident.
In order to guarantee the unimpeded of bleeder port 121 and disappointing passage, the way of prior art is, at sealing ring 11 some discontinuous bulge-structures 116 is set towards the surface of bottom 12, and bulge-structure 116 specifically can be an arcuate projections, as shown in Figure 3.The primary flat 113 of sealing ring 11 when weak part 115 disconnects and fall, described bulge-structure 116 and between air guide port 117 can guarantee to have suitable gap between sealing ring 11 and the bottom 12.Should have the air guide port 117 that is communicated with its both sides between the bulge-structure 116, otherwise the gas of inside battery can't arrive bleeder port 121 by annular protrusion structure 116.Can guarantee the unimpeded of bleeder port 121 and disappointing passage like this.
Yet, existing sealing ring is processed by Shooting Technique radially usually, injection moulding adds the man-hour injected plastics material and disperses mobile around mind-set wherein, the above-mentioned air guide port 117 that is present between the bulge-structure 116, the radial flow that can local change injected plastics material in the mould to, the even phenomenon of density unevenness appears in the sealing ring that causes forming.But the mass distribution of sealing ring 11 requires the uniformity that reaches higher, its reason is that problems such as embrittlement appear being easy to ftractureing, are easy in the even sealing ring that will cause of density unevenness, significantly shorten its useful life, and cause leakage probably, reduce the reliability of battery.The collector body of prior art can't overcome this contradiction, and the certainty in useful life of its sealing ring is short, reliability is inevitable relatively poor.
Therefore, how to remain on the passage that loses heart and improve the uniformity of sealing ring mass distribution unimpeded the time, promptly how prolonging the useful life of sealing ring in the safety anti-explosive performance that guarantees battery and improve its reliability, is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides and a kind ofly can prolong the useful life of sealing ring and the battery current collector of reliability when guaranteeing the safety anti-explosive performance of battery.
For solving the problems of the technologies described above, the utility model provides a kind of battery current collector, comprise sealing ring with explosion-proof ditch, plug-in mounting conductor nail in its centre bore, the bottom of described conductor nail is electrically connected on the center of bottom regularly, described bottom is provided with bleeder port near the position at its edge, and described sealing ring is a rotary body; Described bottom has protruding bulge-structure to described sealing ring, is used for when described sealing ring falls because of described explosion-proof ditch fracture it being supported, thereby forms the fracture opening of the described sealing ring of connection and the disappointing passage of described bleeder port.
Preferably, described bulge-structure is the annular boss around described bottom center, and the top of described annular boss has the air guide breach to lower recess.
Preferably, described bulge-structure is the annular ridge around described bottom center, and the top of described annular ridge has the air guide breach to lower recess.
Preferably, the number of described air guide breach is three, and the three evenly distributes.
Preferably, described bottom further comprises the point-like lug boss of being located at the described air guide breach outside.
Preferably, bar shaped boss or the bar shaped fin of described bulge-structure for radially being provided with along described bottom.
Preferably, the number of described bar shaped boss or bar shaped fin is three, and the three is uniformly distributed in described bottom.
Preferably, described bulge-structure is the point-like lug boss.
Preferably, described sealing ring is made by nylon material.
Preferably, the bottom surface of described sealing ring is provided with the annular air guide channel of indent.
Relative above-mentioned background technology, battery current collector provided by the utility model have been cancelled the bulge-structure of sealing ring bottom, and further described sealing ring are made as rotary body.Because described sealing ring is a rotary body, thereby the material that injection moulding adds in the mould in man-hour can radially evenly be dispersed mobile from the centre to all around, the mass distribution of described sealing ring can be more even, like this with regard to the easy embrittlement of the sealing ring of effectively having avoided prior art, problem easy to crack, significant prolongation useful life and improved reliability.
Battery current collector provided by the utility model appropriate location on described bottom simultaneously is provided with protruding bulge-structure to described sealing ring, when the inside battery gas pressure increase unusually and cause described sealing ring from the fracture of its weak part and and then fall after, described bulge-structure can support it, between described sealing ring and bottom, to form a disappointing passage, therefore can keep unimpeded between the fracture location of described sealing ring and the described bleeder port, the gases at high pressure of inside battery are discharged smoothly.
In addition, cancelled the bulge-structure of sealing ring bottom in the prior art, the thickness of whole sealing ring can reduce relatively, makes inside battery have bigger active material packing space, has significantly improved the capacitance of described battery.
Description of drawings
Fig. 1 is the structural representation of the battery current collector of prior art;
Fig. 2 is the structural representation of sealing ring in the collector body shown in Figure 1;
Fig. 3 is the upward view of sealing ring shown in Figure 2;
Fig. 4 is the structural representation of a kind of embodiment of sealing ring provided by the utility model;
Fig. 5 is the upward view of sealing ring shown in Figure 4;
Fig. 6 is the structural representation of a kind of embodiment of bottom provided by the utility model;
Fig. 7 is the cross-sectional schematic of bottom shown in Figure 6 along the A-A face;
Fig. 8 is the structural representation of a kind of embodiment of collector body provided by the utility model;
Fig. 9 is the structural representation of the another kind of embodiment of bottom provided by the utility model.
Embodiment
The utility model core provides and a kind ofly can prolong the useful life of sealing ring and the battery current collector of reliability when guaranteeing the safety anti-explosive performance of battery.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with drawings and embodiments.
Referring to Fig. 4 and Fig. 5, Fig. 4 is the structural representation of a kind of embodiment of sealing ring provided by the utility model; Fig. 5 is the upward view of sealing ring shown in Figure 4.
In a kind of embodiment, sealing ring 21 provided by the utility model can be made by nylon material, specifically can select nylon 6, nylon 66 or NYLON610 etc. for use.
Blast because of the enclosure interior gas pressure is too high for fear of described battery, the weak part that intensity is lower than other positions is set on the primary flat 213, described weak part specifically can be the annular explosion-proof ditch 215 around also close center column 214.
The edge of primary flat 213 is provided with perpendicular substantially annular sidewall 211, and it is positioned at the below of primary flat 213.The external diameter of annular sidewall 211 should adapt with the internal diameter of described battery container bottom inwall, so that both closely cooperate.
Plug-in mounting is as the conductor of center conductor nail in the centre bore 212, specifically can be that fastener 23 (being shown among Fig. 8) or other have the conductor of suitable shape and material.The electric current that fastener 23 can be collected and outwards carry the inside battery active material to be produced, and its external diameter should equal or be slightly larger than the internal diameter of centre bore 212, so that both closely cooperate,, can also smear adhesive in both contacts site in order to ensure sealing between the two.
The bottom of fastener 23 is fixedly connected on the center of bottom 22, specifically can be welding between the two.Bottom 22 is positioned at the bottom of sealing ring 21, and has suitable gap between itself and the sealing ring 21.Bottom 22 is pressed on the annular sidewall 211 of sealing ring 21 with its marginal portion 221 inwall of described battery container bottom.
As everyone knows, bus of definition rotates a circle this bus then and can obtain a surfaces of revolution around a certain rotating shaft in a plane; This surfaces of revolution and perpendicular to the solid figure that the plane surrounded of described rotating shaft, perhaps the solid figure that the surfaces of revolution surrounded by sealing is rotary body.
A key feature of sealing ring 21 provided by the utility model is that promptly sealing ring 21 is a rotary body.As previously mentioned, necessary air guide port 117 between the bulge-structure 116, so the sealing ring 11 of prior art is not described rotary body.And the sealing ring 21 that is provided in the above-mentioned embodiment of the present utility model has been cancelled described bulge-structure 116, and the air guide port between the bulge-structure 116 117, therefore sealing ring 22 provided by the utility model can be made as described rotary body.
Please refer to Fig. 6 and Fig. 7, Fig. 6 is the structural representation of a kind of embodiment of bottom provided by the utility model; Fig. 7 is the cross-sectional schematic of bottom shown in Figure 6 along the A-A face.
As mentioned above, the effect of the air guide port 117 between prior art relief structure 116 and the bulge-structure 116 is guarantee described disappointing passage unimpeded, avoids the accident of blasting.Under the situation of sealing ring 21 with its cancellation that above-mentioned specific embodiment of the utility model provided, still unimpeded in order to guarantee described disappointing passage, bottom 22 provided by the utility model is provided with bulge-structure on its surface towards sealing ring 21.The effect of described bulge-structure, be when the primary flat 213 of sealing ring 21 falls because of explosion-proof ditch 215 fractures of annular, support the primary flat 213 of sealing ring 21, between sealing ring 21 and bottom 22, keeping suitable distance, thereby guarantee disappointing passage unimpeded between the bleeder port 221 of fracture port that annular explosion-proof ditch 215 fractures are produced and bottom 22.
In a kind of embodiment, the bulge-structure of bottom 22 provided by the utility model specifically can be the annular boss 222 of Figure 6 and Figure 7.Annular boss 222 centers on the center of bottom 22 and is provided with, and protruding in sealing ring 21, specifically can be that punching press forms.
Should select the position of annular boss 222 rightly, such as it can be located at annular explosion-proof ditch 215 in the sealing ring 21 under, to guarantee that the top of annular boss 222 can be supported it when the primary flat 213 of sealing ring 21 falls because of explosion-proof ditch 215 fractures of annular.
The annular explosion-proof ditch 215 of sealing ring 21 is located at the position near center column 214, and the bleeder port 221 of bottom 22 is located at the position near its edge, the inside and outside both sides that fracture port that therefore annular explosion-proof ditch 215 fractures are produced and bleeder port 221 lay respectively at annular boss 222.In order to guarantee to have unimpeded disappointing passage between the two, the gas communication passage of linking up annular boss 222 inside and outside both sides should be set.Such as, the air guide breach 223 to lower recess can be set at the top of annular boss 222.The number of air guide breach 223 can be one, still, and in order further to guarantee a plurality of air guide breach 223 to be set the unimpeded of described disappointing passage.Preferably, number that can air guide breach 223 is set to three, and the three preferably is uniformly distributed in the top of annular boss 222.
In order to guarantee that further air guide breach 223 is not blocked, can point-like lug boss 224 be set in its suitable position, outside.Point-like lug boss 224 equally can punching press forms, and its top can be a circular flat, certainly, and also can square, triangle projective planum, even can only be the tip of a projection.
It is pointed out that described bulge-structure specifically is an annular boss 222 in above-mentioned first kind of embodiment, its top is the ring surface of level, and it radially is roughly trapezoidal in the vertical section.Yet described annular boss 222 also can be replaced by annular ridge, and the top that is about to described bulge-structure is made as the rib of an annular, and this moment, it radially was roughly triangle in the vertical section.Described annular ridge supports the primary flat 213 of sealing ring 21 by the fin at its top.Other structures can be constant.
Please refer to Fig. 8, Fig. 8 is the structural representation of a kind of embodiment of collector body provided by the utility model.
In a kind of embodiment, collector body provided by the utility model comprises above-mentioned sealing ring 21, bottom 22 and as the fastener 23 of center conductor.Three's concrete structure and annexation preamble have been described in detail, and repeat no more herein.
Please refer to Fig. 9, the structural representation of the another kind of embodiment of Fig. 9 bottom provided by the utility model.
With respect to above-mentioned first kind of embodiment, second kind of embodiment of bottom provided by the utility model changed the concrete form of described bulge-structure.
In second kind of embodiment, described bulge-structure specifically can be the bar shaped boss 225 that radially is provided with along bottom 22.Bar shaped boss 225 also can be that punching press forms, and has the end face that radially extends along bottom 22.The position of bar shaped boss 225 should be selected rightly, and when falling because of explosion-proof ditch 215 fractures of annular with the primary flat 213 that guarantees sealing ring 21, the end face of bar shaped boss 225 can support it.
A described bar shaped boss 225 can only be set.In order further to guarantee a plurality of bar shaped boss 225 to be set the unimpeded of described disappointing passage.Preferably, number that can bar shaped boss 225 is set to three, and the three preferably is uniformly distributed in bottom 22, and promptly the three all becomes 120 degree angles in twos.
Described bulge-structure is made as along the bar shaped boss 225 that radially is provided with of bottom 22 can further guarantees the unimpeded of described disappointing passage, its reason is to certainly exist disappointing passage between a plurality of bar shaped boss 225 that radially are provided with, therefore just needn't offer the air guide breach specially, also just needn't consider the blockage problem of air guide breach.In addition, when the primary flat 213 of sealing ring 21 falls because of explosion-proof ditch 215 fractures of annular, be difficult to fall within outside the bar shaped boss 225 that radially extends of bottom 22, therefore improved the reliability of described collector body.
It is pointed out that described bulge-structure specifically is a bar shaped boss 225 in above-mentioned second kind of embodiment, its top is a horizontal plane, and its cross section is roughly trapezoidal.Yet described bar shaped boss 225 also can be replaced by the bar shaped fin, and the top that is about to described bulge-structure is made as a rib that radially extends along bottom 22, and this moment, its cross section was roughly triangle.Described bar shaped fin supports the primary flat 213 of sealing ring 21 by the fin at its top.Other structures can be constant.
Described bulge-structure specifically can also adopt other forms.Such as, it is made as the point-like lug boss, promptly described bulge-structure is round platform or terrace with edge.Particularly, described bulge-structure can be around bottom 22 centers and equally distributed some round platforms.When the position of described round boss should guarantee that the primary flat 213 of sealing ring 21 falls because of explosion-proof ditch 215 fractures of annular, its end face can support it.
The end face of above-mentioned round platform is that nature is circular, but obviously also can be made as it square or other shapes, and such as triangle, this moment, described bulge-structure was a terrace with edge.No matter adopt which kind of concrete shape, its end face all should have enough areas, to guarantee primary flat 213 supports with sealing ring 21.
Battery current collector provided by the utility model has been cancelled the bulge-structure of sealing ring bottom, and further described sealing ring is made as rotary body.Because described sealing ring is a rotary body, thereby the material that injection moulding adds in the mould in man-hour can radially evenly be dispersed mobile from the centre to all around, the mass distribution of described sealing ring can be more even, like this with regard to the easy embrittlement of the sealing ring of effectively having avoided prior art, problem easy to crack, significant prolongation useful life and improved reliability.
Battery current collector provided by the utility model appropriate location on described bottom simultaneously is provided with protruding bulge-structure to described sealing ring, when the inside battery gas pressure increase unusually and cause described sealing ring from the fracture of its weak part and and then fall after, described bulge-structure can support it, between described sealing ring and bottom, to form a disappointing passage, therefore can keep unimpeded between the fracture location of described sealing ring and the described bleeder port, the gases at high pressure of inside battery are discharged smoothly.
In addition, cancelled the bulge-structure of sealing ring bottom in the prior art, the thickness of whole sealing ring can reduce relatively, makes inside battery have bigger active material packing space, has significantly improved the capacitance of described battery.
More than battery current collector provided by the utility model is described in detail.Used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection range of the utility model claim.
Claims (10)
1. a battery current collector comprises the sealing ring with explosion-proof ditch, plug-in mounting conductor nail in its centre bore, the bottom of described conductor nail is electrically connected on the center of bottom regularly, described bottom is provided with bleeder port near the position at its edge, it is characterized in that described sealing ring is a rotary body; Described bottom has protruding bulge-structure to described sealing ring, is used for when described sealing ring falls because of described explosion-proof ditch fracture it being supported, thereby forms the fracture opening of the described sealing ring of connection and the disappointing passage of described bleeder port.
2. battery current collector as claimed in claim 1 is characterized in that, described bulge-structure is the annular boss around described bottom center, and the top of described annular boss has the air guide breach to lower recess.
3. battery current collector as claimed in claim 1 is characterized in that, described bulge-structure is the annular ridge around described bottom center, and the top of described annular ridge has the air guide breach to lower recess.
4. as claim 2 or 3 described battery current collectors, it is characterized in that the number of described air guide breach is three, and the three distributes equably.
5. battery current collector as claimed in claim 4 is characterized in that, described bottom further comprises the point-like lug boss of being located at the described air guide breach outside.
6. battery current collector as claimed in claim 1 is characterized in that, bar shaped boss or the bar shaped fin of described bulge-structure for radially being provided with along described bottom.
7. battery current collector as claimed in claim 6 is characterized in that, the number of described bar shaped boss or bar shaped fin is three, and the three is uniformly distributed in described bottom.
8. battery current collector as claimed in claim 1 is characterized in that, described bulge-structure is the point-like lug boss.
9. as claim 1 to 3 or 6 to 8 each described battery current collectors, it is characterized in that described sealing ring is made by nylon material.
10. battery current collector as claimed in claim 9 is characterized in that, the bottom surface of described sealing ring is provided with the annular air guide channel of indent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201812469U CN201091032Y (en) | 2007-10-31 | 2007-10-31 | Battery current collection body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201812469U CN201091032Y (en) | 2007-10-31 | 2007-10-31 | Battery current collection body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201091032Y true CN201091032Y (en) | 2008-07-23 |
Family
ID=39862790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201812469U Expired - Lifetime CN201091032Y (en) | 2007-10-31 | 2007-10-31 | Battery current collection body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201091032Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425566B (en) * | 2007-10-31 | 2010-06-02 | 中银（宁波）电池有限公司 | Current collection body for battery |
| CN102201555A (en) * | 2011-04-15 | 2011-09-28 | 宁波光华电池有限公司 | Negative electrode assembly for alkaline zinc-manganese battery |
| CN109755589A (en) * | 2019-01-21 | 2019-05-14 | 南平华孚电器有限公司 | Leakage-proof and convenient-to-assemble alkaline environment-friendly zinc-manganese battery double-section current collector |
-
2007
- 2007-10-31 CN CNU2007201812469U patent/CN201091032Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425566B (en) * | 2007-10-31 | 2010-06-02 | 中银（宁波）电池有限公司 | Current collection body for battery |
| CN102201555A (en) * | 2011-04-15 | 2011-09-28 | 宁波光华电池有限公司 | Negative electrode assembly for alkaline zinc-manganese battery |
| CN109755589A (en) * | 2019-01-21 | 2019-05-14 | 南平华孚电器有限公司 | Leakage-proof and convenient-to-assemble alkaline environment-friendly zinc-manganese battery double-section current collector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201091032Y (en) | Battery current collection body | |
| CN101425567B (en) | Current collection body for battery | |
| EP4277013A1 (en) | Battery cell, battery and electric device | |
| CN104716280A (en) | Cylindrical lithium ion battery cover plate, cylindrical lithium ion battery and production method of cylindrical lithium ion battery | |
| CN201171060Y (en) | Current collection body for battery | |
| CN101425566B (en) | Current collection body for battery | |
| CN201584441U (en) | Combined cover cap of battery | |
| CN201358051Y (en) | Horizontal type glass-fiber reinforced plastic storage tank | |
| CN102403467B (en) | Anti-explosion secondary battery | |
| CN201048139Y (en) | Dismountable valve controlled accumulator structure | |
| CN205385056U (en) | Battery tray | |
| CN207398244U (en) | The cathode gasket of cylindrical lithium ion battery | |
| CN201859918U (en) | Cylinder lithium ion battery | |
| CN202833022U (en) | Compressor back shroud for refrigeration equipment and refrigeration equipment with the same | |
| JP5128433B2 (en) | Setting the distance between the end of the central gas pipe in the battery and the bottom of the battery can | |
| CN203690385U (en) | Anti-explosion bolt and storage battery with same | |
| CN201134455Y (en) | Battery tray | |
| CN203013810U (en) | Cover plate structure of lithium battery | |
| CN210200869U (en) | Storage battery for container energy storage system | |
| CN206882322U (en) | A kind of battery pole piece floats powder cleaning device | |
| CN203812930U (en) | Power cylinder type lithium ion battery safety cap | |
| CN214428709U (en) | Storage battery shell and storage battery | |
| CN208284539U (en) | A kind of soft package lithium battery group protection structure | |
| CN203521505U (en) | Storage battery with acid filter structure | |
| CN202839806U (en) | Novel storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080723 |