CN220021419U - Prevent weighing down and hinder lithium cell - Google Patents
Prevent weighing down and hinder lithium cell Download PDFInfo
- Publication number
- CN220021419U CN220021419U CN202321397770.5U CN202321397770U CN220021419U CN 220021419 U CN220021419 U CN 220021419U CN 202321397770 U CN202321397770 U CN 202321397770U CN 220021419 U CN220021419 U CN 220021419U
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- China
- Prior art keywords
- lithium battery
- shell
- end cover
- falling
- tab
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- 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.)
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Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 97
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 238000005303 weighing Methods 0.000 title claims description 3
- 238000013016 damping Methods 0.000 claims description 22
- 230000007306 turnover Effects 0.000 claims description 7
- 230000035939 shock Effects 0.000 abstract description 43
- 239000003792 electrolyte Substances 0.000 abstract description 18
- 230000006378 damage Effects 0.000 abstract description 13
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229940021013 electrolyte solution Drugs 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to the technical field of lithium batteries, in particular to an anti-falling lithium battery, which comprises: the lithium battery is characterized in that the lithium battery is prevented from falling down, if the side surface of the lithium battery is contacted with the ground carelessly, the first shock absorbing piece provides a buffering and shock absorbing effect, when the edge of the end part of the shell is contacted with the ground firstly, the second shock absorbing piece improves the buffering and shock absorbing effect, and the advantages that the shell and the electrode lugs of the lithium battery are not easy to be knocked after the lithium battery falls down carelessly are realized, and electrolyte is not easy to leak due to the injury are achieved.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a lithium battery capable of preventing falling injury.
Background
Lithium batteries are batteries using lithium metal or lithium alloy as positive and negative electrode materials and nonaqueous electrolyte solutions, and are widely used because of their high stored energy density, long service life and lighter weight compared with lead-acid batteries of the same volume.
The existing lithium battery, as shown in fig. 1, is generally cylindrical, and comprises a casing 90, a positive electrode tab 91 and a negative electrode tab 92, wherein the positive electrode tab 91 and the negative electrode tab 92 are respectively arranged at two ends of the casing 90, two ends of the casing 90 are respectively sealed by a positive electrode end cover 93 and a negative electrode end cover 94, a battery cell is arranged in the casing 90, the battery cell comprises electrolyte, and external protection is provided for the battery cell through the casing 90, but: in the process of installation and transportation, when the lithium battery falls accidentally and collides with the ground, the side surface or the end portion of the casing 90 or the end portion of the casing is in direct contact with the ground, so that a pit is easily formed on the casing 90, or the electrolyte is easily leaked from the positive electrode end cover 93 or the negative electrode end cover 94, or the edges of the positive electrode tab 91 and the negative electrode tab 92 are damaged.
Therefore, the demand of the anti-falling lithium battery is provided, wherein the shell and the tab of the lithium battery are not easy to be knocked after the lithium battery falls carelessly, and the electrolyte is not easy to leak due to the knocking.
Disclosure of Invention
The utility model mainly aims to provide an anti-falling lithium battery, wherein the anti-falling lithium battery comprises a shell, the shell is provided with a plurality of first annular grooves, a first damping piece is sleeved in each first annular groove, the outer side of each first damping piece extends out of a notch of each first annular groove by a preset distance, and by arranging the first damping piece, when the anti-falling lithium battery falls down carelessly, if the side surface of the shell contacts with the ground first, the first damping piece provides a buffering and damping effect, and compared with the prior art, the anti-falling lithium battery has the advantages that the shell is not easy to be knocked after the lithium battery falls carelessly, electrolyte is not easy to leak due to the knocking, and the first damping piece is arranged in the first annular groove to help prevent the first damping piece from falling off the shell.
Another object of the present utility model is to provide a lithium battery with anti-falling damage, wherein the casing further has a plurality of second annular grooves, when the sides of two lithium batteries with anti-falling damage are abutted, the first shock absorbing member on one lithium battery with anti-falling damage stretches into the second annular groove of another lithium battery with anti-falling damage, when a plurality of lithium batteries with anti-falling damage are abutted side by side, the part of the first shock absorbing member stretching out of the notch of the first annular groove stretches into the second annular groove, which is helpful for eliminating the problem that the width of a plurality of lithium batteries is prolonged when the plurality of lithium batteries are arranged side by side due to the arrangement of the first shock absorbing member.
The utility model further aims to provide a falling injury prevention lithium battery, wherein two ends of the shell are respectively provided with a second shock absorption piece, one end of each second shock absorption piece is sleeved on the shell, the other end of each second shock absorption piece is provided with an extension part, two ends of the shell are respectively provided with two bulges, each second shock absorption piece is provided with two caulking grooves, when the second shock absorption pieces are arranged on the shell, the bulges extend into the corresponding caulking grooves, and the advantages that the lugs of the lithium battery are not easy to be knocked after the lithium battery falls carelessly are realized by arranging the second shock absorption pieces at the two ends of the shell, and electrolyte is not easy to leak due to the knocking.
In order to achieve at least one of the above objects, the present utility model provides a lithium battery with anti-falling damage, wherein the lithium battery with anti-falling damage comprises:
the shell is provided with a plurality of first annular grooves, a first damping piece is sleeved in each first annular groove, and the outer side of the first damping piece extends out of the notch of the first annular groove for a preset distance.
In one or more embodiments of the present utility model, the casing further has a plurality of second annular grooves, and when the sides of the two anti-falling lithium batteries are abutted, the first shock absorbing member on one anti-falling lithium battery extends into the second annular groove of the other anti-falling lithium battery.
In one or more embodiments of the present utility model, the casing has a receiving cavity, and the anti-falling lithium battery further includes an end cap assembly, where the end cap assembly includes a positive end cap and a negative end cap, and the positive end cap and the negative end cap are respectively disposed at two ends of the casing.
In one or more embodiments of the present utility model, the two ends of the housing have a turnover portion, and when the positive end cap and the negative end cap are respectively abutted against the two ends of the housing, the turnover portion is bent by a predetermined angle and forms a curled edge.
In one or more embodiments of the present utility model, the anti-falling lithium battery further includes a battery cell, where the battery cell is disposed in the accommodating cavity, and the battery cell includes a positive electrode layer, a separator layer, and a negative electrode layer, and the separator layer is located between the positive electrode layer and the negative electrode layer.
In one or more embodiments of the present utility model, the anti-falling lithium battery further includes a tab assembly, where the tab assembly includes a positive tab and a negative tab, two ends of the positive tab are respectively connected with the positive end cover and the positive layer, and two ends of the negative tab are respectively connected with the negative end cover and the negative layer.
In one or more embodiments of the present utility model, the anti-falling lithium battery further includes a plurality of insulating plates, and the insulating plate is disposed between the positive end cover and the battery cell, and the insulating plate is connected with the housing.
In one or more embodiments of the present utility model, a second shock absorbing member is disposed at two ends of the housing, one end of the second shock absorbing member is sleeved on the housing, and the other end of the second shock absorbing member has an extension portion.
In one or more embodiments of the present utility model, two protrusions are disposed at two ends of the housing, each of the second shock absorbing members has two slots, and when the second shock absorbing members are disposed on the housing, the protrusions extend into the corresponding slots.
In the embodiment of the utility model, the anti-falling lithium battery comprises a shell, wherein the shell is provided with a plurality of first annular grooves, a first damping piece is sleeved in each first annular groove, the outer sides of the first damping pieces extend out of the notches of the first annular grooves for a preset distance, and two ends of the shell are respectively provided with a second damping piece.
Drawings
These and/or other aspects and advantages of the present utility model will become more apparent and more readily appreciated from the following detailed description of the embodiments of the utility model, taken in conjunction with the accompanying drawings, wherein:
fig. 1 illustrates a schematic structure of a conventional lithium battery;
fig. 2 illustrates a schematic structural diagram of a lithium battery with anti-falling damage according to an embodiment of the present utility model;
FIG. 3 illustrates a schematic diagram of two anti-falling lithium batteries in side-by-side abutment;
fig. 4 illustrates a partial enlarged view at C of fig. 2.
Description of the embodiments
The terms and words used in the following description and claims are not limited to literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the utility model. It will be apparent to those skilled in the art, therefore, that the following description of the various embodiments of the utility model is provided for illustration only and not for the purpose of limiting the utility model as defined by the appended claims and their equivalents.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
Although ordinal numbers such as "first," "second," etc., will be used to describe various components, those components are not limited herein. The term is used merely to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, or groups thereof.
Summary of the application
When the lithium battery is accidentally dropped and bumped with the ground in the process of installation and transportation, the side face or the end part of the shell is in direct contact with the ground, so that pits are easily formed on the shell, or electrolyte is easily leaked from the positive electrode end cover or the negative electrode end cover, or the edges of the positive electrode tab and the negative electrode tab are bumped.
Based on the technical problems, the utility model provides the anti-falling lithium battery, wherein the anti-falling lithium battery has a simple structure, does not relate to complex manufacturing process and expensive materials, has higher economical efficiency, is easy to produce for manufacturers, has low cost, is more beneficial to control the production cost, and is further beneficial to product popularization and use.
The lithium battery is prevented from being damaged by falling down schematically,
referring to fig. 2 to 4, according to a preferred embodiment of the present utility model, as shown in fig. 2, the anti-falling lithium battery includes a housing 10, an electrolyte is injected into the housing 10, the housing 10 has a plurality of first annular grooves 101, the first annular grooves 101 are located at the side of the housing 10, and the two ends of the housing 10 are respectively provided with a plurality of first annular grooves 101, in this embodiment, the two ends of the housing 10 are respectively provided with a first annular groove 101, a first shock absorbing member 1011 is sleeved in each first annular groove 101, the outer side of the first shock absorbing member 1011 extends out of the notch of the first annular groove 101 by a predetermined distance, and the first shock absorbing member 1011 is further implemented as an O-ring, and the material of the O-ring includes, but is not limited to, nitrile rubber.
It should be noted that, compared with the prior art, in the embodiment of the present utility model, by disposing the first damping member 1011 on the side surface of the casing 10, when the anti-falling lithium battery falls carelessly in the process of handling and installation, if the side surface of the casing 10 contacts with the ground first, the risk that the side surface of the casing 10 is concave and damaged due to collision with the ground and the electrolyte in the casing 10 leaks can be effectively avoided because the first damping member 1011 is disposed on both sides of the casing 10, and the advantages that the side surface of the casing 10 is not easily damaged by the collision and the electrolyte is not easily leaked due to the collision after the lithium battery falls carelessly are achieved.
In addition, it should be noted that, compared to the case 10 with a smooth side surface in the prior art, by providing the first annular groove 101 on the case 10 and placing the first shock absorbing member 1011 in the first annular groove 101, the groove surface of the first annular groove 101 limits the lateral movement of the first shock absorbing member 1011 along the axial direction of the case 10, so that the risk that the first shock absorbing member 1011 is separated from the case 10 is effectively reduced.
Since the lithium batteries are often arranged in groups, in order to prevent the lithium batteries from being damaged by falling due to the sleeving of the first shock absorbing members 1011, a gap exists between the two lithium batteries when the two lithium batteries are mutually spliced, the gap is equal to twice the distance between the first shock absorbing members 1011 extending out of the first annular groove 101, so that the overall size of the lithium battery pack is enlarged, further, as shown in fig. 2, the shell 10 is further provided with a plurality of second annular grooves 102, when the two lithium batteries are abutted side by side, as shown in fig. 3, the first shock absorbing members 1011 on one lithium battery extend into the second annular grooves 102 of the other lithium battery, and meanwhile, the other first shock absorbing members 1011 on the other lithium battery extend into the second annular grooves 102 of the previous lithium battery. By extending a first damper 1011 on one of the anti-falling lithium batteries into the second annular groove 102 on the other of the anti-falling lithium batteries, the space created by the first damper 1011 extending out of the first annular groove 101 is eliminated. In addition, since the anti-falling lithium batteries which are abutted against each other are mutually embedded through the first shock absorbing members 1011 and the corresponding second annular grooves 102, the anti-falling lithium batteries are not easy to move in the axial direction, and the lithium battery pack is easy to be soft-packed through an aluminum plastic film.
Further, as shown in fig. 2, the casing 10 has a through accommodating cavity 103, so that the casing 10 is cylindrical as a whole, the electrolyte is disposed in the accommodating cavity 103, the anti-falling lithium battery further includes an end cover assembly 20, the end cover assembly 20 includes a positive end cover 201 and a negative end cover 202, the positive end cover 201 and the negative end cover 202 are respectively disposed at two ends of the casing 10, and it should be noted that by disposing the positive end cover 201 and the negative end cover 202, openings at two ends of the accommodating cavity 103 are closed, so that the electrolyte is disposed in the accommodating cavity 103.
Further, in order to connect the positive end cap 201 and the negative end cap 202 with the casing 10, as shown in fig. 2 and fig. 4, both ends of the casing 10 are provided with a turnover part 104, and when the positive end cap 201 and the negative end cap 202 respectively abut against both ends of the casing 10, the turnover part 104 is bent by a predetermined angle and forms a curled edge to press the positive end cap 201 or the negative end cap 202, thereby sealing the openings at both ends of the accommodating cavity 103.
Further, in order to implement the electricity storage and discharging of the anti-falling lithium battery, as shown in fig. 3, the anti-falling lithium battery further includes a battery cell 30, where the battery cell 30 is disposed in the accommodating cavity 103, the battery cell 30 includes a positive electrode layer (not shown in the drawing), a separator layer (not shown in the drawing), and a negative electrode layer (not shown in the drawing), the separator layer is disposed between the positive electrode layer and the negative electrode layer, and in this embodiment, the positive electrode layer is wrapped by the separator layer, and the negative electrode layer is wrapped by the separator layer. The separator layer is non-conductive, and the separator layer is arranged between the positive electrode layer and the negative electrode layer, so that the positive electrode layer is prevented from being in contact with the negative electrode layer and being in short circuit, and simultaneously, the micropore channels on the separator layer allow electrolyte ions to pass through, so that the flow of the electrolyte ions is realized.
In addition, as shown in fig. 2, the anti-falling lithium battery further includes a tab assembly 40, the tab assembly 40 includes a positive electrode tab 401 and a negative electrode tab 402, two ends of the positive electrode tab 401 are respectively connected with the positive electrode end cover 201 and the positive electrode layer, and two ends of the negative electrode tab 402 are respectively connected with the negative electrode end cover 202 and the negative electrode layer. The current is led out through the tab assembly 40, wherein the material of the positive electrode tab 401 is preferably aluminum, and the material of the negative electrode tab 402 is preferably nickel.
In addition, as shown in fig. 2, the anti-falling lithium battery further includes a plurality of insulating plates 50, one insulating plate 50 is disposed between the positive end cap 201 and the battery cell 30, one insulating plate 50 is disposed at the other end of the battery cell 30, each insulating plate 50 is connected with the casing 10, a plurality of liquid injection holes 501 are disposed on the insulating plate 50, and the liquid injection holes 501 are obliquely arranged, and when the electrolyte is injected, the electrolyte flows onto the battery cell 30 through the liquid injection holes 501.
Further, in order to avoid the accidental falling of the lithium battery and the knocked-down of the tab assembly 40 or the end edge of the housing 10 being knocked-down and resulting in a gap between the end cap assembly 20 and the turnover portion 104 and forming a leakage, as shown in fig. 4, two ends of the housing 10 are provided with a second shock absorbing member 60, one end of the second shock absorbing member 60 is sleeved on the housing 10, the other end of the second shock absorbing member 60 is provided with an extension portion 601, the second shock absorbing member 60 is fixedly mounted on the housing 10 in an adhesive manner, in this embodiment, the end face of the extension portion 601 is flush with the corresponding end face of the tab assembly 40, the second shock absorbing member 60 is made of rubber, the maximum radial dimension of the second shock absorbing member 60 is equal to the maximum radial dimension of the housing 10, specifically, the end of the housing 10 is provided with an annular gap 105, and one end of the second shock absorbing member 60 facing away from the extension portion 601 is sleeved on the annular gap 105.
It should be noted that, compared with the prior art, the embodiment of the utility model realizes the advantages that the electrode tab assembly 40 and the end edges of the housing 10 are not easy to be knocked after the lithium battery is carelessly dropped by arranging the second shock absorbing members 60 at the two end parts of the housing 10, and the electrolyte is not easy to leak due to the knocks.
Further, in order to make the second shock absorbing members 60 more firmly fixed on the housing 10, as shown in fig. 4, two protrusions 106 are disposed at two ends of the housing 10, each protrusion 106 has a width dimension gradually increasing from one side close to the housing 10 to the other side, and correspondingly, each second shock absorbing member 60 has two grooves 602, the grooves 602 are identical to the shapes of the protrusions 106, when the second shock absorbing members 60 are disposed on the housing 10, the protrusions 106 extend into the corresponding grooves 602, and when the second shock absorbing members 60 are mounted, since the second shock absorbing members 60 are made of rubber, the grooves of the grooves 602 deform and the protrusions 106 pass through the grooves of the grooves 602 when the protrusions 106 extend into the grooves 602.
In summary, the anti-falling damage lithium battery provided by the embodiment of the utility model has the advantages that the shell and the tab of the anti-falling damage lithium battery are not easy to be knocked after the lithium battery is carelessly dropped, the electrolyte is not easy to leak due to the knocks, and the like.
It is worth mentioning that, in the embodiment of the utility model, the anti-falling lithium battery has a simple structure, does not involve complicated manufacturing process and expensive materials, and has higher economical efficiency. Meanwhile, for manufacturers, the anti-falling lithium battery provided by the utility model is easy to produce, low in cost, more beneficial to control of production cost and further beneficial to product popularization and use.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from such principles.
Claims (9)
1. The utility model provides a prevent weighing down and hinder lithium cell which characterized in that: the anti-falling lithium battery comprises
The shell is provided with a plurality of first annular grooves, a first damping piece is sleeved in each first annular groove, and the outer side of the first damping piece extends out of the notch of the first annular groove for a preset distance.
2. The lithium battery of claim 1, wherein: the shell is also provided with a plurality of second annular grooves, and when the side surfaces of the two anti-falling lithium batteries are propped against each other, the first damping piece on one anti-falling lithium battery stretches into the second annular groove of the other anti-falling lithium battery.
3. The lithium battery of claim 2, wherein: the shell is provided with a containing cavity, the anti-falling lithium battery further comprises an end cover combination, the end cover combination comprises a positive end cover and a negative end cover, and the positive end cover and the negative end cover are respectively arranged at two ends of the shell.
4. The lithium battery of claim 3, wherein: the two ends of the shell are respectively provided with a turnover part, and after the positive end cover and the negative end cover are respectively propped against the two ends of the shell, the turnover parts are bent for a preset angle to form curled edges.
5. The lithium battery of claim 4, wherein: the lithium battery is characterized by further comprising a battery cell, wherein the battery cell is arranged in the accommodating cavity and comprises an anode layer, a diaphragm layer and a cathode layer, and the diaphragm layer is positioned between the anode layer and the cathode layer.
6. The lithium battery of claim 5, wherein: the lithium battery is characterized by further comprising a tab combination, wherein the tab combination comprises an anode tab and a cathode tab, two ends of the anode tab are respectively connected with the anode end cover and the anode layer, and two ends of the cathode tab are respectively connected with the cathode end cover and the cathode layer.
7. The lithium battery of claim 6, wherein: the lithium battery is characterized by further comprising a plurality of insulating plates, wherein one insulating plate is arranged between the positive end cover and the battery cell, and the insulating plates are connected with the shell.
8. The lithium battery of any one of claims 1 to 7, wherein: the two ends of the shell are respectively provided with a second damping piece, one end of each second damping piece is sleeved on the shell, and the other end of each second damping piece is provided with an extension part.
9. The lithium battery of claim 8, wherein: two ends of the shell are provided with two bulges, each second damping piece is provided with two caulking grooves, and when the second damping pieces are arranged on the shell, the bulges extend into the corresponding caulking grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321397770.5U CN220021419U (en) | 2023-06-02 | 2023-06-02 | Prevent weighing down and hinder lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321397770.5U CN220021419U (en) | 2023-06-02 | 2023-06-02 | Prevent weighing down and hinder lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220021419U true CN220021419U (en) | 2023-11-14 |
Family
ID=88694266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321397770.5U Active CN220021419U (en) | 2023-06-02 | 2023-06-02 | Prevent weighing down and hinder lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220021419U (en) |
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2023
- 2023-06-02 CN CN202321397770.5U patent/CN220021419U/en active Active
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