CN219534691U - Lithium battery negative electrode sealing structure - Google Patents
Lithium battery negative electrode sealing structure Download PDFInfo
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- CN219534691U CN219534691U CN202320728957.2U CN202320728957U CN219534691U CN 219534691 U CN219534691 U CN 219534691U CN 202320728957 U CN202320728957 U CN 202320728957U CN 219534691 U CN219534691 U CN 219534691U
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- annular
- sealing structure
- limiting
- lithium battery
- shell
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- 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
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Abstract
The utility model discloses a lithium battery cathode sealing structure, which comprises: an annular support plate; the graphite negative pole is positioned at the center of the annular supporting plate; the annular sealing structure is arranged on the lower surface of the annular supporting plate; the limiting structure is arranged on the lower surface of the annular supporting plate, and the graphite negative pole column is positioned in the limiting structure; the sealing structure is arranged between the limiting structure and the annular sealing structure, and is used for sealing.
Description
Technical Field
The utility model relates to the field of lithium batteries, in particular to a lithium battery negative electrode sealing structure.
Background
Lithium batteries are a type of battery using a nonaqueous electrolyte solution, which uses lithium metal or lithium alloy as a positive/negative electrode material, and can be broadly divided into two types: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable.
The current lithium battery cathode is poor in sealing, leakage is easy to occur, the overall sealing reliability is insufficient, danger is easy to occur, and certain safety risks are provided, so that in order to solve the problem, it is very necessary to design a lithium battery cathode sealing structure.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a lithium battery negative electrode sealing structure, which solves the problems that the current lithium battery negative electrode is poor in sealing, easy to leak, insufficient in overall sealing reliability, easy to risk and has certain safety risk.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: a lithium battery negative electrode sealing structure, comprising:
an annular support plate;
the graphite negative pole is positioned at the center of the annular supporting plate;
the annular sealing structure is arranged on the lower surface of the annular supporting plate;
the limiting structure is arranged on the lower surface of the annular supporting plate, and the graphite negative pole column is positioned in the limiting structure;
the sealing structure is arranged between the limiting structure and the annular sealing structure and is used for sealing;
the extrusion structure is arranged between the annular sealing structure and the limiting structure and is used for extruding the sealing structure;
the negative plate structure is arranged on the limiting structure and is connected with the graphite negative pole column.
Preferably, the annular sealing structure includes: the annular fixed support shell, the annular support fixing plate and the annular limiting clamping block;
the annular fixed support shell is arranged on the lower surface of the annular support plate, the annular support fixed plate is arranged at the lower end of the inner side surface of the annular fixed support shell, the annular limiting clamping block is arranged on the outer side of the upper surface of the annular support fixed plate, and the annular limiting clamping block is matched with the nickel-plated iron shell on the outer side of the lithium battery.
Preferably, the limiting structure includes: a limit housing;
the limiting shell is arranged on the lower surface of the annular supporting plate, and the limiting shell is matched with the graphite negative pole column.
Preferably, the pressing structure includes: extruding a spring;
the extrusion spring is sleeved on the limiting shell, and is positioned in the annular fixed support shell and matched with the sealing gasket.
Preferably, the sealing structure includes: a sealing gasket;
the sealing gasket is sleeved on the limiting shell, and the sealing gasket is positioned in the annular fixed support shell.
Preferably, the negative electrode sheet structure includes: a connecting part and a fixing part;
the connecting portion is connected with the graphite negative pole post, the fixed part is installed on the connecting portion, just fixed part and annular spacing fixture block phase-match.
Preferably, the connection part includes: a negative electrode connecting sheet;
the negative electrode connecting sheet is connected with the graphite negative electrode column.
Preferably, the fixing part includes: an annular fixed housing;
the annular fixed shell is arranged on the negative electrode connecting sheet and is matched with the annular limiting clamping block.
Advantageous effects
The utility model provides a lithium battery cathode sealing structure. The beneficial effects are as follows: this lithium battery negative pole seal structure can seal the lithium battery negative pole better, and is very convenient, has reduced unnecessary trouble, and the leakproofness is better, the effectual emergence of preventing revealing, and the security is higher, and the structure is simple relatively, convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of a lithium battery cathode sealing structure according to the present utility model.
Fig. 2 is a front view of a structure of a lithium battery cathode sealing structure according to the present utility model.
Fig. 3 is a schematic partial view of a negative electrode sealing structure of a lithium battery according to the present utility model.
Fig. 4 is a bottom view of a lithium battery anode sealing structure according to the present utility model.
In the figure:
the graphite cathode comprises an annular supporting plate 10, a graphite cathode column 20, an annular sealing structure 30, a limiting structure 40, a sealing structure 50, an extrusion structure 60 and a cathode sheet structure 70;
an annular fixed support housing 31, an annular support fixing plate 32, and an annular limit fixture block 33;
a limit housing 41;
a sealing gasket 51;
a pressing spring 61;
a negative electrode connection piece 71, and an annular fixed housing 72.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: the annular sealing structure 30 on the side surface of the annular supporting plate 10 is used for sealing, the limiting structure 40 on the lower surface of the annular supporting plate 10 is used for limiting, the sealing structure 50 between the limiting structure 40 and the annular sealing structure 30 is used for sealing, the extrusion structure 60 between the annular sealing structure 30 and the limiting structure 40 is used for extruding the sealing structure 50, and the negative plate structure 70 on the limiting structure 40 is connected with the graphite negative electrode column 20.
Preferably, the annular sealing structure 30 comprises: an annular fixed support housing 31, an annular support fixing plate 32, and an annular limit block 33; the annular fixed support shell 31 is arranged on the lower surface of the annular support plate 10, the annular support fixed plate 32 is arranged at the lower end of the inner side surface of the annular fixed support shell 31, the annular limiting clamping block 33 is arranged on the outer side of the upper surface of the annular support fixed plate 32, and the annular limiting clamping block 33 is matched with the nickel-plated iron shell on the outer side of the lithium battery.
The nickel-plated iron shell wraps the sealing structure through the annular fixed support shell 31, the annular support fixing plate 32 and the annular limiting clamping block 33, and is fixed through the annular limiting clamping block 33.
Preferably, the limiting structure 40 includes: a limit housing 41; the limiting shell 41 is mounted on the lower surface of the annular supporting plate 10, and the limiting shell 41 is matched with the graphite negative electrode column 20.
The limit housing 41 on the lower surface of the annular support plate 10 is used for limiting.
Preferably, the pressing structure 60 includes: a pressing spring 61; the pressing spring 61 is sleeved on the limiting shell 41, the pressing spring 61 is located in the annular fixed supporting shell 31, and the pressing spring 61 is matched with the sealing gasket 51.
The sealing gasket 51 is pressed by the pressing spring 61, so that the sealing gasket can be better sealed, and leakage is prevented.
Preferably, the sealing structure 50 includes: a sealing gasket 51; the sealing gasket 51 is sleeved on the limiting shell 41, and the sealing gasket 51 is located in the annular fixed support shell 31.
Sealing is performed by a sealing gasket 51.
Preferably, the negative electrode sheet structure 70 includes: a connecting part and a fixing part; the connecting portion is connected with the graphite negative electrode column 20, the fixing portion is mounted on the connecting portion, and the fixing portion is matched with the annular limiting clamping block 33.
Preferably, the connection portion includes: a negative electrode connection piece 71; the negative electrode connection piece 71 is connected to the graphite negative electrode column 20.
Is connected to the graphite negative electrode column 20 through a negative electrode connection piece 71 for use.
Preferably, the fixing portion includes: an annular stationary housing 72; the annular fixed housing 72 is mounted on the negative electrode connection piece 71, and the annular fixed housing 72 is matched with the annular limit fixture block 33.
The negative electrode connection piece 71 is fixed by an annular fixing case 72.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A lithium battery negative electrode sealing structure, characterized by comprising:
an annular support plate (10);
a graphite negative pole (20), wherein the graphite negative pole (20) is positioned at the center of the annular supporting plate (10);
an annular sealing structure (30), wherein the annular sealing structure (30) is arranged on the lower surface of the annular supporting plate (10);
the limiting structure (40) is arranged on the lower surface of the annular supporting plate (10), and the graphite negative pole column (20) is positioned in the limiting structure (40);
the sealing structure (50) is arranged between the limiting structure (40) and the annular sealing structure (30), and the sealing structure (50) is used for sealing;
the extrusion structure (60) is arranged between the annular sealing structure (30) and the limiting structure (40), and the extrusion structure (60) is used for extruding the sealing structure (50);
the negative plate structure (70), negative plate structure (70) is installed on limit structure (40), just negative plate structure (70) is connected with graphite negative pole post (20).
2. The lithium battery anode sealing structure according to claim 1, wherein the annular sealing structure (30) comprises: an annular fixed support shell (31), an annular support fixed plate (32) and an annular limit clamping block (33);
the annular fixed support shell (31) is arranged on the lower surface of the annular support plate (10), the annular support fixing plate (32) is arranged at the lower end of the inner side surface of the annular fixed support shell (31), the annular limiting clamping block (33) is arranged on the outer side of the upper surface of the annular support fixing plate (32), and the annular limiting clamping block (33) is matched with the nickel-plated iron shell on the outer side of the lithium battery.
3. The lithium battery anode sealing structure according to claim 2, wherein the limit structure (40) comprises: a limit housing (41);
the limiting shell (41) is arranged on the lower surface of the annular supporting plate (10), and the limiting shell (41) is matched with the graphite negative pole column (20).
4. A lithium battery anode sealing structure according to claim 3, characterized in that the pressing structure (60) comprises: a pressing spring (61);
the extrusion spring (61) is sleeved on the limiting shell (41), the extrusion spring (61) is located in the annular fixed support shell (31), and the extrusion spring (61) is matched with the sealing gasket (51).
5. A lithium battery anode sealing structure according to claim 3, characterized in that the sealing structure (50) comprises: a sealing gasket (51);
the sealing gasket (51) is sleeved on the limiting shell (41), and the sealing gasket (51) is positioned in the annular fixed support shell (31).
6. The lithium battery anode sealing structure according to claim 5, wherein the anode sheet structure (70) comprises: a connecting part and a fixing part;
the connecting portion is connected with the graphite negative pole column (20), the fixed part is installed on the connecting portion, and the fixed part is matched with the annular limiting clamping block (33).
7. The lithium battery anode sealing structure according to claim 6, wherein the connecting portion comprises: a negative electrode connection piece (71);
the negative electrode connecting piece (71) is connected with the graphite negative electrode column (20).
8. The lithium battery anode sealing structure according to claim 7, wherein the fixing portion comprises: an annular stationary housing (72);
the annular fixed shell (72) is arranged on the negative electrode connecting sheet (71), and the annular fixed shell (72) is matched with the annular limiting clamping block (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320728957.2U CN219534691U (en) | 2023-04-04 | 2023-04-04 | Lithium battery negative electrode sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320728957.2U CN219534691U (en) | 2023-04-04 | 2023-04-04 | Lithium battery negative electrode sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219534691U true CN219534691U (en) | 2023-08-15 |
Family
ID=87651728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320728957.2U Active CN219534691U (en) | 2023-04-04 | 2023-04-04 | Lithium battery negative electrode sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219534691U (en) |
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2023
- 2023-04-04 CN CN202320728957.2U patent/CN219534691U/en active Active
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