CN217903388U - Pole structure and battery - Google Patents
Pole structure and battery Download PDFInfo
- Publication number
- CN217903388U CN217903388U CN202221281655.7U CN202221281655U CN217903388U CN 217903388 U CN217903388 U CN 217903388U CN 202221281655 U CN202221281655 U CN 202221281655U CN 217903388 U CN217903388 U CN 217903388U
- Authority
- CN
- China
- Prior art keywords
- composite
- pole
- composite part
- layer
- compound
- 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.)
- Active
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 utility model relates to the technical field of batteries, in particular to a pole structure, which comprises a first compound part, a second compound part and a eutectic layer; the second composite part is used for being connected with the battery core; the first composite part is used for being connected with an external circuit, and the materials of the second composite part and the first composite part are different; the eutectic layer is positioned between the first composite part and the second composite part and is formed by combining and fixing the first composite part and the second composite part. In the utmost point post structure of this embodiment, accord with through the first compound portion and the second compound portion that set up different structures and form the eutectic layer, first compound portion and the compound portion of second can be the same with the pole piece material of external circuit and electric core respectively to guarantee with the combination effect of utmost point post structure, the eutectic layer not only can guarantee the bonding strength between the compound portion of first compound portion and second simultaneously, can also guarantee that utmost point post structure has lower resistance, thereby improves the electric conductive property of utmost point post structure.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a utmost point post structure and battery.
Background
With the development of technology, batteries have been widely used in the fields of electric vehicles, electric scooters, etc., and the demand of batteries in the market is increasing. The utmost point post is one of the essential element of battery, and in prior art, owing to need utmost point post to be connected with external circuit and electric core respectively, when adopting different material welding between the pole piece of utmost point post and electric core, fixed effect is not good, and the welding degree of difficulty is great to often the pole piece of external circuit and electric core is different materials, so lead to utmost point post electric conductive property to descend, influence battery performance.
Therefore, it is necessary to design a new pole to change the current situation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a utmost point post structure and battery for solve the not good problem of traditional utmost point post electric conductive property.
The utility model provides a post structure, include:
the first composite part is used for being electrically connected with an external circuit;
the second composite part is electrically connected with the battery cell pole piece, and the materials of the second composite part and the first composite part are different; and
and the eutectic layer is positioned between the first composite part and the second composite part and is formed by combining and fixing the first composite part and the second composite part.
According to an embodiment of the invention, the thickness of the first composite portion and/or the second composite portion is not less than 1mm.
According to an embodiment of the present invention, the first composite portion includes a first connection layer and a first convex portion connected to each other, one side of the first connection layer is connected to the second composite portion, and the eutectic layer is formed by combining the second composite portion and the first connection layer; the first convex part is vertically arranged on one side, away from the second composite part, of the first connecting layer, and the thickness of the first connecting layer is not smaller than 0.8mm.
According to the utility model discloses an embodiment, compound portion of second is including second articulamentum and the second convex part that meets, the second articulamentum connect in one side of first articulamentum, the second convex part is located perpendicularly the second articulamentum is kept away from one side of first articulamentum, just the thickness of second articulamentum is not less than 0.8mm.
According to the utility model discloses an embodiment, first compound portion orientation one side of the compound portion of second is equipped with first sawtooth groove, the compound portion orientation of second one side of first compound portion is equipped with second sawtooth groove, first sawtooth groove with the crisscross compound formation in second sawtooth groove eutectic layer.
According to the utility model discloses an embodiment, first sawtooth groove with second sawtooth groove follows the mid point of utmost point post structure is the arc setting.
According to an embodiment of the present invention, the first compound portion is further provided with a first positioning plane, a distance between the first positioning plane and a central axis of the first compound portion is smaller than a radius of the first compound portion, and the first positioning plane is parallel to the central axis of the first compound portion;
the second composite portion is further provided with a second positioning plane, the distance between the second positioning plane and the central axis of the second composite portion is smaller than the radius of the second composite portion, and the second positioning plane is parallel to the central axis of the second composite portion.
According to an embodiment of the invention, the thickness of the eutectic layer is in the range of 1-3 microns.
According to an embodiment of the present invention, the eutectic layer is formed by combining any one of cold rolling, hot rolling, friction stir welding, semi-solid casting, cold pressure welding, ultrasonic welding, and diffusion welding; and the resistance of the eutectic layer is no greater than 0.0175 milliohms.
The utility model also provides a battery, include:
battery cell:
according to the pole column structure, the second composite part is connected with the battery core in a welding mode.
Implement the embodiment of the utility model provides a, following beneficial effect has:
in the utmost point post structure of this embodiment, compound formation eutectic layer through the first compound portion and the compound portion of second that set up different structures, first compound portion and the compound portion of second can be the same with the pole piece and the external circuit material of electric core respectively to guarantee the combination effect of utmost point post structure, the eutectic layer not only can guarantee the bonding strength between the compound portion of first compound portion and second simultaneously, can also guarantee that utmost point post structure has lower resistance, thereby improves utmost point post structure's electric conductive property.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
fig. 1 is a perspective view of a pole structure according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a post structure according to an embodiment of the present invention;
fig. 3 is a perspective view of a pole structure in an improved embodiment of the present invention;
fig. 4 is a perspective view of a pole post structure in a modified embodiment of the present invention;
fig. 5 is a cross-sectional view of a pole structure in another modified embodiment of the present invention;
fig. 6 is an exploded view of a pole structure in a further improved embodiment of the present invention;
fig. 7 is a perspective view of a pole structure according to another embodiment of the present invention;
fig. 8 is an exploded view of a pole structure in some embodiments of the invention;
fig. 9 is an exploded view of a pole structure in some embodiments of the invention;
reference numerals:
10. a pole structure;
100. a first compound portion; 110. a first tie layer; 111. a first sawtooth groove; 120. a first convex portion; 130. a first positioning plane;
200. a second composite portion; 210. a second connection layer; 211. a second sawtooth groove; 220. a second convex portion; 230. a second positioning plane;
300. a eutectic layer.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings in the present invention will be combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 and 2, an embodiment of the present invention provides a pole post structure 10, which includes a first composite portion 100, a second composite portion 200, and a eutectic layer 300; the first composite portion 100 is used for connection with an external circuit; the second composite part 200 is used for connecting with the battery core, and the materials of the second composite part 200 and the first composite part 100 are different; the eutectic layer 300 is located between the first composite part 100 and the second composite part 200, and the eutectic layer 300 is formed by combining and fixing the first composite part 100 and the second composite part 200.
In the utmost point post structure 10 of this embodiment, compound the eutectic layer 300 that forms through the first compound portion 100 and the second compound portion 200 that set up different structures, first compound portion 100 and the compound portion 200 of second can be the same with the pole piece material of external circuit and electric core respectively, in order to guarantee utmost point post structure 10's combination effect, the bonding strength between first compound portion 100 and the compound portion 200 of second not only can be guaranteed to eutectic layer 300 simultaneously, can also guarantee utmost point post structure 10 has lower resistance, thereby improve utmost point post structure 10's electric conductive property.
Specifically, referring to fig. 2, L1 in the figure is defined as the thickness dimension of the first composite portion 100, and L2 in the figure is defined as the thickness dimension of the eutectic layer 300; specifically, the eutectic layer 300 has a thickness in the range of 1-3 microns.
In the present embodiment, the eutectic layer 300 has a microstructure, and when the post structure 10 is processed, the first composite portion 100 and the second composite portion 200 are combined and formed by any one of cold rolling, hot rolling, friction stir welding, semi-solid casting, cold pressure welding, ultrasonic welding, and diffusion welding, so as to form the eutectic layer 300.
Among the prior art, the equipment cost of preparation utmost point post is higher usually, and the purchase price of general processing equipment reaches million grades or hundreds of thousands of grades, and when adopting composite board as the material of utmost point post, composite board's cost is also higher, and this manufacturing cost that just leads to utmost point post is high, and when adopting the utmost point post structure 10 of this application, can adopt the already widely used low price equipment in field to process, reduces manufacturing cost at the processing equipment aspect.
In an embodiment, the thickness of the first composite portion 100 and/or the second composite portion 200 is not less than 1mm.
Referring to fig. 2, by providing the first composite portion 100 and the second composite portion 200 with a thickness not less than 1mm, the problem that the first composite portion 100 and the second composite portion 200 penetrate due to composite processing can be avoided, for example, when welding, the problem of welding between the first composite portion 100 and the second composite portion 200 can be avoided, or when welding a battery cell pole piece, the second composite portion 200 is avoided from being welded, so as to ensure the strength of the pole column structure 10.
Specifically, referring to fig. 1 to 5, the first composite portion 100 includes a first connection layer 110 and a first protrusion 120 connected to each other, one side of the first connection layer 110 is connected to the second composite portion 200, and the eutectic layer 300 is formed by combining the second composite portion 200 and the first connection layer 110; the first protrusion 120 is vertically disposed on a side of the first connection layer 110 away from the second composite portion 200, and a thickness of the first connection layer 110 is not less than 0.8mm.
It should be noted that, in the existing pole, the welding position between the pole and the pole piece of, for example, an external circuit or a battery cell is generally a planar structure, and when the pole or the pole piece is subjected to a lateral external force, the welding position is easily broken, which results in an unstable pole structure; when the pole post structure 10 of the present embodiment is used, the first protrusion 120 may be welded to an external circuit, and when machining, since the first protrusion 120 protrudes from the first connection layer 110, the welding operation between the pole piece and the first protrusion 120 may be facilitated, and meanwhile, the first connection layer 110 may be prevented from being damaged, the first composite portion 100 is used for conducting the current of the second composite portion 200, and the first protrusion 120 is used for conducting the current of the external circuit, so as to ensure the conductivity of the first composite portion 100. It is understood that, in the present embodiment, when the thickness of the first connection layer 110 is 0.8mm, the thickness of the first protrusion 120 may be not less than 0.2mm.
Further, referring to fig. 3 and 4, the first compound portion 100 is further provided with a first positioning plane 130, a distance between the first positioning plane 130 and a central axis of the first compound portion 100 is smaller than a radius of the first compound portion 100, and the first positioning plane 130 is parallel to the central axis of the first compound portion 100; the second composite portion 200 is further provided with a second positioning plane 230, a distance between the second positioning plane 230 and a central axis of the second composite portion 200 is smaller than a radius of the second composite portion 200, and the second positioning plane 230 is parallel to the central axis of the second composite portion 200.
From this setting, after utmost point post structure 10 is connected with electric core, the apron of battery can be spacing in order to carry out with utmost point post structure 10's axial rotation through contacting with first locating plane 130 and/or second locating plane 230 to guarantee utmost point post structure 10's installation accuracy, make utmost point post structure 10 reach simultaneously and prevent turning round the functional requirement.
Specifically, the first positioning plane 130 may be provided only on the first connection layer 110 or the first protrusion 120, or may be provided to penetrate the first connection layer 110 and the first protrusion 120, and the first positioning plane 130 of the first composite part 100 and the second positioning plane 230 of the second composite part 200 may be formed by, for example, cutting.
Further, referring to fig. 5, a first sawtooth groove 111 is formed on one side of the first compound portion 100 facing the second compound portion 200, a second sawtooth groove 211 is formed on one side of the second compound portion 200 facing the first compound portion 100, and the first sawtooth groove 111 and the second sawtooth groove 211 are alternately compounded to form the eutectic layer 300.
With the arrangement, the first composite portion 100 and the second composite portion 200 are connected through the first sawtooth groove 111 and the second sawtooth groove 211, so that the contact area between the first composite portion 100 and the second composite portion 200 can be increased, the bonding strength between the first composite portion and the second composite portion can be increased, and the electric conductivity between the first composite portion and the second composite portion can be increased.
Referring to fig. 6, in another embodiment, the first sawtooth grooves 111 and the second sawtooth grooves 211 are annularly arranged along the midpoint of the pole structure 10.
In the present embodiment, the first sawtooth groove 111 and the second sawtooth groove 211 are both arc-shaped profiles and are arranged in an arc shape from the center of the pole structure 10. Therefore, when the first composite part 100 and the second composite part 200 are welded by diffusion welding, the first sawtooth grooves 111 and the second sawtooth grooves 211 can correspond to each other, the positioning is more accurate, and the strength of the joint surface is more stable.
Specifically, the electrical resistance of the eutectic layer 300 is not more than 0.0175 milliohms. With this arrangement, the pole structure 10 can be ensured to have good conductivity in use.
Referring to fig. 7, in another embodiment, the difference from any of the above embodiments is that the second composite portion 200 includes a second connection layer 210 and a second protrusion 220 connected to each other, the second connection layer 210 is connected to one side of the first connection layer 110, the second protrusion 220 is vertically disposed on one side of the second connection layer 210 away from the first connection layer 110, and the thickness of the second connection layer 210 is not less than 0.8mm.
It can be understood that, when the pole post structure 10 of this embodiment is used, the second protrusion 220 may be welded to the pole piece of the battery core, and when processing, since the second protrusion 220 protrudes outward from the second connection layer 210, the second protrusion 220 may be conveniently connected to an external circuit, the second composite portion 200 is used to conduct the current of the first composite portion 100, and the second protrusion 220 is used to conduct the current of the pole piece, so as to ensure the conductivity of the second composite portion 200. It is understood that, in the present embodiment, when the thickness of the second connection layer 210 is 0.8mm, the thickness of the second protrusion 220 may be not less than 0.2mm.
As shown in fig. 2, the bonding strength between the first composite part 100 and the second composite part 200 is not less than 40N/mm. It should be noted that, the bonding strength here means that, as shown in the cross-sectional state of fig. 2, the bonding size of the cross section of the first composite portion 100 and the cross section of the second composite portion 200 on the horizontal plane is defined as x, and the bonding strength is 40N/mm, so that when the first composite portion 100 and the second composite portion 200 are pulled away from each other, the required tensile force is 40 × x; for example, when x is 5mm, the pulling force to pull the first composite portion 100 and the second composite portion 200 apart is 200N. With this arrangement, tensile strength between the first composite portion 100 and the second composite portion 200 can be ensured.
Referring to fig. 8 and 9, in some embodiments, projections of the first sawtooth grooves 111 and the second sawtooth grooves 211 on a cross section of the pole structure 10 may be partially spaced in a circumferential direction of the pole structure 10, or have a sector shape with a predetermined arc in the circumferential direction of the pole structure 10.
In the above-described embodiment, the first serrated groove 111 may be formed of an arc-shaped convex structure at a side of the first connection layer 110 away from the first protrusion 120, and the second serrated groove 211 may be formed of a concave structure at a side of the second connection layer 210 away from the second protrusion 220 by a material removing process. Of course, in some embodiments, the first sawtooth groove 111 and the second sawtooth groove 211 can be interchanged, for example, the first sawtooth groove 111 is a concave structure, and the second sawtooth groove 211 is a convex structure, which is not limited herein.
In addition, the first connection layer 110 and the second connection layer 210 are at least partially of a planar structure on the sides facing each other; with the above arrangement, when the first connection layer 110 and the second connection layer 210 are butted, the first serrated groove 111 and the second serrated groove 211 may be fitted to each other to coaxially position the fitting of the first composite portion 100 and the second composite portion 200, to avoid occurrence of deflection and offset phenomena, and assembly efficiency and machining accuracy may be improved.
Specifically, referring to fig. 8, the first and second saw- toothed grooves 111 and 211 may be arranged at intervals in the circumferential direction of the pole structure 10 with a radian of 30 °, and provided in four groups. The four sets of the first and second serration grooves 111 and 211 may be positioned to correspond to each other in cooperation when the first and second composite parts 100 and 200 are assembled. In other embodiments, the first sawtooth groove 111 and the second sawtooth groove 211 can be provided in two, three, or more groups, and the radian can be set to 15 °, 45 °, and the like, which is not limited herein.
Specifically, referring to fig. 9, the first and second serration grooves 111 and 211 may have a 120 ° sector shape in the circumferential direction of the pole structure 10. The first and second serrated grooves 111 and 211 of 120 ° arc may be positioned to be fitted to each other when the first and second composite portions 100 and 200 are assembled. In other embodiments, the first sawtooth groove 111 and the second sawtooth groove 211 can be arranged at 45 °, 90 °, 135 °, and the like, which is not limited herein.
In a particular embodiment, the second composite portion 200 may be a copper electrode and the first composite portion 100 may be an aluminum electrode. In current battery, adopt copper as the material of pole piece usually, through copper electrode and copper electrode sheet welding, be connected with external circuit through aluminium electrode, can guarantee utmost point post structure 10 respectively with battery and external circuit between the nature of leading, also can avoid electrolytic reaction to influence utmost point post structure 10's life simultaneously, utmost point post structure 10 self bonding strength is also high in addition, manufacturing cost can reduce, performance can improve.
The utility model also provides a battery, which comprises an electric core and the pole structure 10 in any one of the above embodiments; the second composite portion 200 of the pole structure 10 is welded to the battery core. Specifically, the second composite portion 200 is welded to a pole piece of the battery cell.
It can be understood that, in the battery of this embodiment, by providing the pole post structure 10 in any one of the above embodiments, the pole post structure 10 is formed by combining the first combining portion 100 and the second combining portion 200, which are different in structure, to form the eutectic layer 300, the first combining portion 100 and the second combining portion 200 can be respectively the same as the pole pieces of the external circuit and the battery cell, so as to ensure the combining effect of the pole post structure 10, and meanwhile, the eutectic layer 300 not only can ensure the combining strength between the first combining portion 100 and the second combining portion 200, but also can ensure that the pole post structure 10 has a lower resistance, thereby improving the conductive performance of the battery.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood as specific cases to those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A pole structure, comprising:
the first composite part is used for being electrically connected with an external circuit;
the second composite part is electrically connected with the battery cell pole piece, and the materials of the second composite part and the first composite part are different; and
and the eutectic layer is positioned between the first composite part and the second composite part and is formed by combining and fixing the first composite part and the second composite part.
2. A pole construction according to claim 1, characterised in that the thickness of the first and/or second composite part is not less than 1mm.
3. The pole structure of claim 2, wherein the first compound portion comprises a first connection layer and a first convex portion which are connected, one side of the first connection layer is connected to the second compound portion, and the eutectic layer is formed by compounding the second compound portion and the first connection layer; the first convex part is vertically arranged on one side, away from the second composite part, of the first connecting layer, and the thickness of the first connecting layer is not smaller than 0.8mm.
4. The pole post structure of claim 3, wherein the second composite portion comprises a second connecting layer and a second protrusion, the second connecting layer is connected to one side of the first connecting layer, the second protrusion is vertically arranged on one side of the second connecting layer, which is far away from the first connecting layer, and the thickness of the second connecting layer is not less than 0.8mm.
5. The pole post structure of claim 1, wherein a first serrated groove is formed in one side, facing the second compound portion, of the first compound portion, a second serrated groove is formed in one side, facing the first compound portion, of the second compound portion, and the first serrated groove and the second serrated groove are compounded in a staggered manner to form the eutectic layer.
6. The pole post structure of claim 5, wherein the first sawtooth groove and the second sawtooth groove are arranged in an arc shape along a midpoint of the pole post structure.
7. The pole structure of claim 1, wherein the first compound portion is further provided with a first positioning plane, a distance between the first positioning plane and a central axis of the first compound portion is smaller than a radius of the first compound portion, and the first positioning plane is parallel to the central axis of the first compound portion;
the second composite portion is further provided with a second positioning plane, the distance between the second positioning plane and the central axis of the second composite portion is smaller than the radius of the second composite portion, and the second positioning plane is parallel to the central axis of the second composite portion.
8. A post structure according to claim 1, wherein the eutectic layer has a thickness in the range of 1-3 microns.
9. The pole structure of claim 1, wherein the eutectic layer is formed by any one of cold rolling, hot rolling, friction stir welding, semi-solid casting, cold pressure welding, ultrasonic welding, and diffusion welding; and the resistance of the eutectic layer is no greater than 0.0175 milliohms.
10. A battery, comprising:
battery cell:
a pole structure according to any one of claims 1 to 9, wherein the second composite portion is welded to the cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221281655.7U CN217903388U (en) | 2022-05-25 | 2022-05-25 | Pole structure and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221281655.7U CN217903388U (en) | 2022-05-25 | 2022-05-25 | Pole structure and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217903388U true CN217903388U (en) | 2022-11-25 |
Family
ID=84112423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221281655.7U Active CN217903388U (en) | 2022-05-25 | 2022-05-25 | Pole structure and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217903388U (en) |
-
2022
- 2022-05-25 CN CN202221281655.7U patent/CN217903388U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI469427B (en) | A conductive connecting member, a method of manufacturing a conductive connecting member, and a battery having a conductive connecting member as an electrode | |
| US10135040B2 (en) | Electric storage device, electric storage device assembly, and method for producing electric storage device | |
| JP6094850B2 (en) | Electricity storage element | |
| JP5483348B2 (en) | Bus bar manufacturing method | |
| WO2011122455A1 (en) | Electrode terminal, and method for producing electrode terminal | |
| US8119280B2 (en) | Cap assembly for a high current capacity energy delivery device | |
| JP2009277603A (en) | Non-aqueous electrolyte secondary battery | |
| JP2011514636A (en) | Medium or large battery module having electrode terminal connecting member and insulating bonding member | |
| CN211980657U (en) | Fixing frame structure and battery pack thereof | |
| CN115566369A (en) | Battery module | |
| CN217903388U (en) | Pole structure and battery | |
| JP5378366B2 (en) | Cap assembly for high current capacity energy supply equipment | |
| CN217086681U (en) | Battery and battery pack | |
| CN218648037U (en) | Power battery top cover structure | |
| CN108428818B (en) | Power battery top cover structure, power battery and battery module | |
| CN212625964U (en) | Battery separator and battery pack | |
| CN218548598U (en) | Battery cover plate assembly and cylindrical battery | |
| CN113422172A (en) | Connecting piece, battery monomer and battery package | |
| CN217691558U (en) | Connecting piece, battery monomer and battery package | |
| CN219759900U (en) | Battery and battery pack | |
| CN219832953U (en) | Negative electrode switching piece and battery cover plate | |
| CN221614143U (en) | Power battery post, post assembly structure, battery shell and battery | |
| CN220420738U (en) | Copper bar flexible connection assembly based on flexible package battery cell and main control board and unmanned aerial vehicle battery | |
| CN211828874U (en) | Battery module | |
| CN216213962U (en) | Battery pole column piece, battery cover plate assembly and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |