CN218101652U - Be applied to safe type battery rubber nail and battery apron of benefit lithium cell - Google Patents
Be applied to safe type battery rubber nail and battery apron of benefit lithium cell Download PDFInfo
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- CN218101652U CN218101652U CN202222269121.9U CN202222269121U CN218101652U CN 218101652 U CN218101652 U CN 218101652U CN 202222269121 U CN202222269121 U CN 202222269121U CN 218101652 U CN218101652 U CN 218101652U
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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 safety battery rubber nail applied to lithium battery supplement, which comprises a nail body; the bottom end of the nail body is provided with a conical insertion part; the conical insertion part is used for being inserted into a liquid injection hole of a battery cover plate of the lithium supplement battery; the conical insertion part is internally provided with a gas delivery through hole; the nail body is internally provided with a second gas discharge cavity and a first gas discharge cavity which are distributed up and down and are separated by a separation plate; a plurality of exhaust holes are formed in the top of the nail body; the top of the gas delivery through hole is communicated with the first gas exhaust cavity; the bottom of the gas conveying through hole is connected with the inside of the lithium supplement battery; the middle part of the partition plate is provided with a vent hole; a spring is arranged above the vent hole; the upper end of the spring is connected with the inner side of the top of the nail body; the lower end of the spring is connected with the top surface of the sealing cushion block. The utility model also discloses a battery apron. The utility model discloses can in time outwards discharge the gas that current benefit lithium cell produced after annotating the liquid, prevent to introduce external moisture simultaneously and influence the battery performance.
Description
Technical Field
The utility model relates to a lithium cell technical field especially relates to a be applied to safe type battery glue nail and battery apron of mending lithium cell.
Background
With the improvement of the requirements of people on the energy density and the cycle life of the lithium ion battery, a positive electrode lithium supplement or negative electrode lithium supplement additive (namely, a lithium supplement material is used as an additive) is added into the lithium ion battery so as to improve the energy density and the cycle life of the battery.
By using the negative electrode lithium supplement additive, the requirements on the manufacturing environment (such as dust control and production safety) of the negative electrode lithium supplement battery are improved, and after the negative electrode lithium supplement battery is injected, a lithium source and the negative electrode can form an electronic path to spontaneously form chemical reaction to generate gas, and the gas is retained in the inner cavity of the battery, so that the performance of the battery can be influenced.
Generally, after the battery is filled with liquid, the battery needs to be sealed by a glue nail so as to prevent the performance of the battery from being influenced by the introduction of external moisture. However, for the battery after lithium supplement, the inserted glue nail can prevent moisture and impurities from being introduced, and the safety of the battery is ensured, but the gas generated by spontaneous reaction after the lithium supplement battery is injected can be always sealed because the conventional glue nail is inserted into the injection hole, and the gas can not be discharged in time, so that the gas remains among pole pieces, pole piece diaphragms and the like, and further the interface contact can be influenced, and the pole piece state and the battery performance are influenced.
Therefore, there is an urgent need to develop a technology that can discharge the gas generated after the filling of the existing lithium battery in time, ensure the performance of the battery, and prevent the introduction of external moisture from affecting the performance of the battery.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be applied to the safe type battery rubber nail and the battery apron of mending lithium cell to the technical defect that prior art exists.
Therefore, the utility model provides a safety battery rubber nail applied to lithium battery supplement, which comprises a nail body;
the bottom end of the nail body is provided with a conical insertion part;
the conical insertion part is used for being inserted into a liquid injection hole in a battery cover plate of the lithium supplement battery;
a gas conveying through hole vertically communicated up and down is formed in the transverse middle of the conical insertion part;
the shape of the conical insertion part is an inverted truncated cone shape;
a second gas discharge cavity and a first gas discharge cavity which are distributed up and down are arranged in the nail body;
a plurality of exhaust holes distributed at intervals are circumferentially arranged on the peripheral edge of the top of the nail body;
the upper end of the second gas discharge cavity is communicated with the external environment through a gas discharge hole;
the second gas discharge cavity and the first gas discharge cavity are separated by a transversely distributed partition plate;
the top of the gas conveying through hole is communicated with the first gas exhaust cavity;
the bottom of the gas delivery through hole is opened and is communicated with the internal space of the lithium supplement battery;
the middle part of the partition plate is provided with a circular vent hole;
a vertically distributed spiral spring is arranged right above the vent hole;
the upper end of the spring is connected with the inner side of the top of the nail body;
the lower end of the spring is connected with the top surface of the sealing cushion block in the shape of the inverted truncated cone;
the sealing cushion block is used for completely blocking the vent holes in the partition plate under the action of downward elastic force of the spring to realize sealing, so that the first gas exhaust cavity and the second gas exhaust cavity are isolated from each other, and when upward thrust applied to the bottom surface of the sealing cushion block by gas in the first gas exhaust cavity is greater than the downward elastic force of the spring, the sealing cushion block does not completely block the vent holes in the partition plate along with upward movement of the spring, so that the gas in the first gas exhaust cavity enters the second gas exhaust cavity through the vent holes and is discharged outwards through the vent holes.
Preferably, the nail body is in the shape of a hollow cylinder.
Preferably, the central axis of the gas delivery through-hole is in the same vertical line as the central axis of the conical insertion portion.
Preferably, the center line of the seal cushion block is positioned on the same vertical line with the center line of the spring, the center line of the nail body, the center line of the gas delivery through hole and the center line of the conical insertion part.
In addition, the utility model also provides a battery cover plate, which comprises a cover plate main body, wherein the cover plate main body comprises a liquid injection hole for injecting electrolyte;
the liquid injection hole is inserted with the safety battery glue nail applied to the lithium battery supplement.
By the above the technical scheme provided by the utility model it is visible, compare with prior art, the utility model provides a be applied to safe type battery rubber nail and battery apron of benefit lithium cell, its structural design science can in time outwards discharge the gas that current benefit lithium cell produced after annotating the liquid, guarantees the performance of battery to prevent to introduce external moisture simultaneously and influence the battery performance, have the significance of serious production practice.
Drawings
Fig. 1 is a schematic sectional view of a safety battery nail applied to a lithium battery pack according to the present invention;
fig. 2 is a schematic diagram of a safety battery nail applied to a lithium battery supplement provided by the present invention, in an embodiment, the structure is in a sealed state;
fig. 3 is a schematic diagram of a safety battery nail applied to a lithium battery supplement provided by the present invention, in an embodiment, the structure is in an exhaust state;
fig. 4 is a top view of a safety battery nail applied to a lithium battery supplement provided by the present invention;
fig. 5 is a schematic sectional view of an installation state of a battery cover plate and a safety battery glue nail applied to a lithium battery supplement provided by the present invention;
fig. 6 is a partial cross-sectional view of a liquid injection hole on a battery cover plate when a safety battery glue nail is not inserted.
Detailed Description
The technical solution of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
In the description of the present invention, it is to be understood 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 used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 6, the utility model provides a safety battery rubber nail applied to lithium battery supplement, which comprises a nail body 8;
the bottom end of the nail body 8 is provided with a conical insertion part 2;
the conical insertion part 2 is used for being inserted into a liquid injection hole (namely an electrolyte injection hole) on a battery cover plate of the lithium supplement battery;
a gas conveying through hole 1 vertically communicated up and down is formed in the transverse middle of the conical insertion part 2;
the shape of the conical insertion part 2 is an inverted truncated cone shape;
a second gas discharge cavity 5 and a first gas discharge cavity 3 which are distributed up and down are arranged in the nail body 8;
a plurality of exhaust holes 7 distributed at intervals are circumferentially arranged on the peripheral edge of the top of the nail body 8;
the upper end of the second gas discharge cavity 5 is communicated with the external environment (i.e. the space outside the battery) through a gas discharge hole 7;
the second gas exhaust cavity 5 and the first gas exhaust cavity 3 are separated by a transversely distributed partition plate 10;
the top of the gas delivery through hole 1 is communicated with the first gas exhaust cavity 3;
the bottom of the gas delivery through hole 1 is opened and is communicated with the internal space of the lithium supplement battery;
a circular vent hole is formed in the middle of the partition plate 10;
a vertically distributed spiral spring 6 is arranged right above the vent hole;
the upper end of the spring 6 is connected with the inner side of the top of the nail body 8;
the lower end of the spring 6 is connected with the top surface of the sealing cushion block 4 in the shape of an inverted truncated cone;
and the sealing cushion block 4 is used for completely blocking the vent holes on the partition plate 10 by the lower part of the sealing cushion block 4 under the action of the downward elastic force of the spring 6 to realize sealing, so that the first gas exhaust cavity 3 and the second gas exhaust cavity 5 are isolated from each other, and when the upward thrust applied to the bottom surface of the sealing cushion block 4 by the gas in the first gas exhaust cavity 3 (specifically, the upward thrust applied by the gas in the lithium supplement battery communicated with the first gas exhaust cavity) is greater than the downward elastic force of the spring 6, the sealing cushion block 4 moves upwards along with the spring 6 (in the direction shown by an arrow B in fig. 2) and does not completely block the vent holes on the partition plate 10 any more, so that the gas in the first gas exhaust cavity 3 enters the second gas exhaust cavity 5 through the vent holes and is discharged outwards through the vent holes 7. Referring to fig. 2, the discharge direction of the gas is shown by arrow a.
In the present invention, in the concrete implementation, the shape of the nail body 8 is a hollow cylinder.
The utility model discloses in, on specifically realizing, the central axis of gas conveying through-hole 1, with the central axis of toper inserted part 2 is located same vertical straight line.
The utility model discloses in, on specifically realizing, the central line of seal cushion 4, with the central line of spring 6, the central line of the nail body 8, the central axis of gas feed through hole 1 and the central axis of toper insertion portion 2, be located same vertical straight line.
The utility model discloses in, it is required to explain that, first gas outgoing cavity 3 can be used for the storage to mend the produced a small amount of gas of lithium cell spontaneous reaction after annotating the liquid, guarantees the planarization and the contact nature of the inside utmost point group of battery, to a certain extent, promotes the performance of battery.
It should be noted that, through the design of the spring 6, the sealing cushion block 4 in the shape of an inverted truncated cone can be made to extend and retract up and down along with the internal gas pressure of the lithium supplement battery communicated with the first gas exhaust cavity. The sealing cushion block 4 in the shape of the inverted cone frustum exhausts gas under the internal pressure of the battery, returns to the original position under the action of the spring, avoids air from entering while exhausting, and ensures the safety of the battery.
It should be noted that the second gas exhaust cavity 5 can be communicated with the outside through a plurality of exhaust holes 7 on the top of the nail body 8 to exhaust gas.
The utility model discloses in, on specifically realizing, a current gas collecting device can also be connected on the top of the nail body 8 for further aassessment battery is annotating the gassing volume in the stage of stewing behind the liquid.
The safety battery glue nail applied to the lithium battery supplement provided by the invention is applied to the battery cover plate of various continuous batteries which can generate gas in the use process.
The invention also provides a battery cover plate which is arranged on the battery shell and comprises a cover plate main body 11, wherein the cover plate main body 11 comprises a liquid injection hole 12 for injecting electrolyte;
the injection hole 12 is inserted with the safety battery glue nail applied to lithium battery supplement as described above.
In order to understand the technical solution of the present invention more clearly, the working principle of the present invention is explained below.
To the utility model provides a be applied to safe type battery rubber nail of benefit lithium cell, when toper insertion portion 2 inserts the notes liquid hole inner chamber on the battery apron of benefit lithium cell, need just can extract it with the help of external force.
In the using process, if no gas is generated in the lithium battery, the vent holes on the partition plate 10 are completely blocked due to the existence of the sealing cushion block 4 in the shape of the inverted cone frustum, and the first gas discharge cavity 3 is in a sealed state, so that no gas exchange between the inside of the battery and the outside is ensured.
When reaction gas in the lithium supplement battery generates, the gas enters the first gas discharge cavity 3 through the gas conveying through holes 1, when the pressure applied to the sealing cushion block 4 by the gas in the first gas discharge cavity 3 is greater than the pressure applied to the top of the sealing cushion block 4 by the spring and the external atmosphere, the sealing cushion block 4 is further pushed upwards, so that the gas in the battery enters the second gas discharge cavity 5 through the first gas discharge cavity 3, and is discharged to the outside through the exhaust hole 7 at the top end of the nail body 8, after the gas is discharged, due to the reset effect of the spring 6, the sealing cushion block 4 is restored to the original position, the vent hole in the partition plate 10 is completely blocked, so that the first gas discharge cavity 3 is sealed, and the interface smoothness of a pole piece and a diaphragm in the battery and the safety of the battery can be guaranteed.
Compared with the prior art, the utility model provides a be applied to safe type battery rubber nail and battery apron of benefit lithium cell has following beneficial effect:
1. when no gas is generated in the battery during use, the safety battery rubber nail is in a sealing state. The conical insertion part 2 at the lower end of the nail body is inserted into a liquid injection hole on the battery cover plate to play a role in sealing so as to ensure the safety of the battery;
2. when gas is produced in the standing stage, the gas can be discharged in time through the design of an exhaust structure in the safety battery rubber nail, so that the smoothness of the interface of a pole piece and a diaphragm in the battery is ensured.
To sum up, compare with prior art, the utility model provides a pair of be applied to safe type battery rubber nail and battery apron of benefit lithium cell, its structural design science can in time outwards discharge the gas that current benefit lithium cell produced after annotating the liquid, guarantees the performance of battery to prevent to introduce external moisture simultaneously and influence the battery performance, have the significance of great production practice.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The safety battery glue nail applied to the lithium battery supplement is characterized by comprising a nail body (8);
the bottom end of the nail body (8) is provided with a conical insertion part (2);
the conical insertion part (2) is used for being inserted into a liquid injection hole in a battery cover plate of the lithium supplement battery;
a gas conveying through hole (1) which is vertically communicated up and down is formed in the transverse middle of the conical insertion part (2);
the shape of the conical insertion part (2) is an inverted truncated cone shape;
a second gas exhaust cavity (5) and a first gas exhaust cavity (3) which are distributed up and down are arranged in the nail body (8);
a plurality of exhaust holes (7) distributed at intervals are circumferentially arranged on the peripheral edge of the top of the nail body (8);
the upper end of the second gas discharge cavity (5) is communicated with the external environment through a gas discharge hole (7);
the second gas exhaust cavity (5) and the first gas exhaust cavity (3) are separated by a transversely distributed partition plate (10);
the top of the gas conveying through hole (1) is communicated with the first gas discharge cavity (3);
the bottom of the gas delivery through hole (1) is opened and is communicated with the internal space of the lithium supplement battery;
the middle part of the partition plate (10) is provided with a circular vent hole;
a vertically distributed spiral spring (6) is arranged right above the vent hole;
the upper end of the spring (6) is connected with the inner side of the top of the nail body (8);
the lower end of the spring (6) is connected with the top surface of the sealing cushion block (4) in the shape of an inverted truncated cone;
the sealing cushion block (4) is used for completely blocking the vent holes in the partition plate (10) at the lower part under the action of downward elastic force of the spring (6) to realize sealing, so that the first gas exhaust cavity (3) and the second gas exhaust cavity (5) are isolated from each other, and when upward thrust applied to the bottom surface of the sealing cushion block (4) by gas in the first gas exhaust cavity (3) is greater than the downward elastic force of the spring (6), the sealing cushion block (4) moves upwards along with the spring (6) and does not completely block the vent holes in the partition plate (10), so that the gas in the first gas exhaust cavity (3) enters the second gas exhaust cavity (5) through the vent holes and is exhausted outwards through the exhaust holes (7).
2. The safety type battery nail for lithium battery supplement of claim 1, wherein the nail body (8) is hollow and cylindrical.
3. The safety battery nail for lithium battery replenishment according to claim 1 or 2, wherein the central axis of the gas delivery through hole (1) and the central axis of the conical insertion part (2) are in the same vertical line.
4. The safety battery glue nail applied to the lithium battery supplement of any one of the claims 1 to 3, characterized in that the center line of the sealing cushion block (4) is positioned on the same vertical line with the center line of the spring (6), the center line of the nail body (8), the center line of the gas delivery through hole (1) and the center line of the conical insertion part (2).
5. The battery cover plate is characterized by comprising a cover plate main body (11), wherein the cover plate main body (11) comprises an electrolyte injection hole (12) for injecting electrolyte;
the injection hole (12) is inserted with the safety battery glue nail applied to the lithium battery supplement as claimed in any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222269121.9U CN218101652U (en) | 2022-08-26 | 2022-08-26 | Be applied to safe type battery rubber nail and battery apron of benefit lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222269121.9U CN218101652U (en) | 2022-08-26 | 2022-08-26 | Be applied to safe type battery rubber nail and battery apron of benefit lithium cell |
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| Publication Number | Publication Date |
|---|---|
| CN218101652U true CN218101652U (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222269121.9U Active CN218101652U (en) | 2022-08-26 | 2022-08-26 | Be applied to safe type battery rubber nail and battery apron of benefit lithium cell |
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| CN (1) | CN218101652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117393966A (en) * | 2023-12-13 | 2024-01-12 | 陕西奥林波斯电力能源有限责任公司 | Repair device for large-capacity battery, repair bin and large-capacity battery |
-
2022
- 2022-08-26 CN CN202222269121.9U patent/CN218101652U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117393966A (en) * | 2023-12-13 | 2024-01-12 | 陕西奥林波斯电力能源有限责任公司 | Repair device for large-capacity battery, repair bin and large-capacity battery |
| CN117393966B (en) * | 2023-12-13 | 2024-03-19 | 陕西奥林波斯电力能源有限责任公司 | Repair device for large-capacity battery, repair bin and large-capacity battery |
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