CN218448326U - Button lithium manganese cell with explosion-proof structure - Google Patents
Button lithium manganese cell with explosion-proof structure Download PDFInfo
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- CN218448326U CN218448326U CN202222420939.6U CN202222420939U CN218448326U CN 218448326 U CN218448326 U CN 218448326U CN 202222420939 U CN202222420939 U CN 202222420939U CN 218448326 U CN218448326 U CN 218448326U
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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 relates to a button cell technical field just discloses a button lithium manganese cell with explosion-proof structure, including positive pole mechanism, negative pole mechanism, sealing mechanism and battery inner core, the inside joint of positive pole mechanism has negative pole mechanism, the grafting department of positive pole mechanism and negative pole mechanism is provided with sealing mechanism, the inside of positive pole mechanism and negative pole mechanism still is provided with the battery inner core, and the battery inner core is current button lithium manganese cell structure, positive pole mechanism includes anodal shell, anodal shell's inner wall fixedly connected with insulation board sets up the locating pin through the inside at anodal shell to peg graft through the keyway on locating pin and the negative pole shell, thereby promote the connectivity between anodal shell and the negative pole shell, and leave the clearance between locating pin and the negative pole shell, increase the expandable space of battery inner core, thereby carry out the explosion-proof through the scalable space of increase strength and battery inner core, reached the effect that prevents explosion.
Description
Technical Field
The utility model relates to a button cell technical field specifically is a button lithium manganese cell with explosion-proof construction.
Background
Button li-mn batteries, also known as button cells, are commonly used in small devices for power.
In the long-time use process of the lithium-manganese battery, the battery core in the middle of the button lithium-manganese battery expands and bulges due to the action of chemical action and temperature, and the battery can explode when the bulge reaches the critical point of the strength of the external wrapping material, so that the exploded battery can cause the damage of equipment, or the middle electrolyte flows out to cause the short circuit of the equipment.
Therefore, there is a need for a button lithium manganese dioxide battery with an explosion-proof structure, which is used to improve the explosion-proof performance of the button lithium manganese dioxide battery.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a knot formula lithium manganese cell with explosion-proof structure to solve the problem that proposes among the above-mentioned background art.
In order to solve the technical problem, the utility model provides a following technical scheme: a button lithium manganese battery with an explosion-proof structure comprises a positive electrode mechanism, a negative electrode mechanism, a sealing mechanism and a battery inner core, wherein the negative electrode mechanism is clamped in the positive electrode mechanism, the sealing mechanism is arranged at the splicing position of the positive electrode mechanism and the negative electrode mechanism, the battery inner core is also arranged in the positive electrode mechanism and the negative electrode mechanism, and the battery inner core is of the conventional button lithium manganese battery structure;
the positive mechanism comprises a positive shell, the inner wall of the positive shell is fixedly connected with an insulating plate, a positioning pin is fixedly connected below the insulating plate, and a clamping sheet is arranged at an opening of the positive shell;
the negative electrode mechanism comprises a negative electrode shell, a concave clamping groove is formed in the middle section of the negative electrode shell, and a pin groove is formed in the edge of the bottom of the negative electrode shell;
the sealing mechanism comprises an insulating sheet, and a fixing groove is formed in the outer surface of the insulating sheet.
The positioning pin is arranged in the positive shell and is inserted into the pin groove in the negative shell through the positioning pin, so that the connectivity between the positive shell and the negative shell is improved, a gap is reserved between the positioning pin and the negative shell, and the expandable space of the battery inner core is increased, so that the explosion prevention is performed by increasing the strength and the telescopic space of the battery inner core, and the explosion prevention effect is achieved;
set up the joint piece through the opening part at anodal shell to set up sunken draw-in groove on the negative pole shell, and at the internally mounted insulating piece of sunken draw-in groove, and cooperate through joint piece and fixed slot, thereby promoting passing through of insulating piece leakproofness, carry out further enhancement to being connected between anodal shell and the negative pole shell, reached the effect that promotes the security.
Preferably, the insulating plate inside the positive electrode can is disposed in direct contact with the outer surface of the negative electrode can.
The inner wall of the anode shell is provided with the insulating plate, so that the contact point of the anode shell and the contact point of the cathode shell are isolated, and the internal short circuit of the battery is avoided.
Preferably, the positioning pin is vertically downward, a circular ring is arranged at the bottom of the positioning pin, and the circular ring is inserted into the pin slot.
The locating pin is arranged, the bottom of the locating pin is provided with the circular ring, and the circular ring is connected with the pin groove in an inserting mode, so that the connecting strength of the positive electrode shell and the negative electrode shell is improved, and the explosion-proof strength of the button type lithium manganese battery is improved.
Preferably, a gap is reserved between the outer surface of the positioning pin and the outer surface of the negative electrode shell except for the outer surface of the positioning pin which is inserted into the pin groove.
Leave the clearance between locating pin and the negative pole shell to when battery core takes place the inflation and leads to anodal shell or negative pole shell to take place to warp, going on between locating pin and the negative pole shell is used for promoting battery core's inflation space and accomodate expanding gas, reduces the possibility that battery core blast and the intensity of less explosion.
Preferably, the sunken clamping groove formed in the surface of the negative electrode shell is in lap joint with the inner wall of the insulating sheet, and the inner wall of the insulating sheet is completely matched with the inner wall of the sunken clamping groove.
With sunken draw-in groove and insulating piece overlap joint and coincide completely to seal the battery, when negative pole shell takes place the inflation or positive pole shell bottom takes place the inflation, can make between draw-in groove and the sunken draw-in groove extrude each other, thereby promote the intensity and the leakproofness of junction, avoid the weeping.
Preferably, the pin slot is an open arc, and the pin slot covers 2/3 area of a circular ring at the bottom of the positioning pin.
Set the keyway to convex to wrap up the ring of locating pin bottom, thereby fix the locating pin through the keyway, promote the intensity of connecting.
Preferably, the clamping sheet is inserted into the fixing groove, and the top of the insulating sheet is higher than that of the positive electrode shell.
The clamping sheet is inserted into the fixing groove in a plugging mode, so that the insulating sheet is fixed through the matching of the clamping sheet and the concave clamping groove, and the joint of the clamping sheet and the concave clamping groove is isolated and sealed.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is:
first, the utility model discloses a set up the locating pin in the inside of positive pole shell to peg graft through the keyway on locating pin and the negative pole shell, thereby promote the connectivity between positive pole shell and the negative pole shell, and leave the clearance between locating pin and the negative pole shell, increase the expandable space of battery inner core, thereby carry out explosion-proof through the scalable space of gaining in strength and battery inner core, reached the effect that prevents the explosion.
Second, the utility model discloses a set up the joint piece at the opening part of positive pole shell to set up sunken draw-in groove on negative pole shell, and at the internally mounted insulating piece of sunken draw-in groove, and cooperate through joint piece and fixed slot, thereby promoting the passing through of insulating piece leakproofness, carry out further enhancement to being connected between positive pole shell and the negative pole shell, reached the effect that promotes the security.
Drawings
FIG. 1 is a sectional view of the present invention;
fig. 2 is a schematic view of the positive electrode mechanism of the present invention;
fig. 3 is a schematic view of the negative electrode mechanism of the present invention;
fig. 4 is a schematic view of the sealing mechanism of the present invention.
Wherein: 1. a positive electrode mechanism; 101. a positive electrode case; 102. an insulating plate; 103. positioning pins; 104. a card connecting sheet; 2. a negative electrode mechanism; 201. a negative electrode case; 202. a recessed clamping groove; 203. a pin slot; 3. a sealing mechanism; 301. an insulating sheet; 302. a fixing groove; 4. a battery core.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious 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 work belong to the protection scope of the present invention.
Referring to fig. 1-4, a button lithium manganese battery with an explosion-proof structure includes a positive electrode mechanism 1, a negative electrode mechanism 2, a sealing mechanism 3 and a battery core 4, wherein the negative electrode mechanism 2 is clamped inside the positive electrode mechanism 1, the sealing mechanism 3 is arranged at the insertion position of the positive electrode mechanism 1 and the negative electrode mechanism 2, the battery core 4 is also arranged inside the positive electrode mechanism 1 and the negative electrode mechanism 2, and the battery core 4 is the existing button lithium manganese battery structure;
the positive mechanism 1 comprises a positive shell 101, the inner wall of the positive shell 101 is fixedly connected with an insulating plate 102, a positioning pin 103 is fixedly connected below the insulating plate 102, and a clamping sheet 104 is arranged at an opening of the positive shell 101;
the negative electrode mechanism 2 comprises a negative electrode shell 201, a concave clamping groove 202 is arranged in the middle section of the negative electrode shell 201, and a pin groove 203 is arranged at the bottom edge of the negative electrode shell 201;
the sealing mechanism 3 includes an insulating sheet 301, and a fixing groove 302 is formed on an outer surface of the insulating sheet 301.
Through the technical scheme, the positioning pin 103 is arranged in the positive electrode shell 101 and is inserted into the pin groove 203 on the negative electrode shell 201 through the positioning pin 103, so that the connectivity between the positive electrode shell 101 and the negative electrode shell 201 is improved, a gap is reserved between the positioning pin 103 and the negative electrode shell 201, the expandable space of the battery inner core 4 is increased, the explosion prevention is performed through increasing the strength and the telescopic space of the battery inner core 4, and the effect of preventing guarantee is achieved;
through set up joint piece 104 at the opening part of positive pole shell 101 to set up sunken draw-in groove 202 on negative pole shell 201, and at the internally mounted insulating piece 301 of sunken draw-in groove 202, and cooperate through joint piece 104 and fixed slot 302, thereby promoting passing through of insulating piece 301 leakproofness, carry out further enhancement to being connected between positive pole shell 101 and the negative pole shell 201, reached the effect that promotes the security.
Specifically, the insulating plate 102 inside the positive electrode can 101 is disposed in a position in direct contact with the outer surface of the negative electrode can 201.
Through the technical scheme, the insulating plate 102 is arranged on the inner wall of the positive electrode shell 101, so that the contact points of the positive electrode shell 101 and the negative electrode shell 201 are isolated, and the internal short circuit of the battery is avoided.
Specifically, the positioning pin 103 is vertically downward, and a circular ring is arranged at the bottom of the positioning pin 103 and inserted into the pin slot 203.
Through the technical scheme, the positioning pin 103 is arranged, the circular ring is arranged at the bottom of the positioning pin 103, and the circular ring is inserted into the pin groove 203, so that the connection strength of the anode shell 101 and the cathode shell 201 is improved, and the explosion-proof strength of the button lithium manganese battery is improved.
Specifically, the outer surface of the positioning pin 103 is inserted into the pin groove 203, and a gap is left between the outer surface of the negative electrode case 201 and the outer surface.
Through the technical scheme, a gap is reserved between the positioning pin 103 and the negative electrode shell 201, so that when the battery core 4 expands to cause the deformation of the positive electrode shell 101 or the negative electrode shell 201, the expansion space for lifting the battery core 4 and the accommodation of expansion gas are formed between the positioning pin 103 and the negative electrode shell 201, and the possibility of explosion of the battery core 4 and the strength of less explosion are reduced.
Specifically, the concave clamping groove 202 formed on the surface of the negative electrode shell 201 is in lap joint with the inner wall of the insulating sheet 301, and the inner wall of the insulating sheet 301 is completely matched with the inner wall of the concave clamping groove 202.
Through above-mentioned technical scheme, with sunken draw-in groove 202 and insulating piece 301 overlap joint and coincide completely to seal the battery, when negative pole shell 201 takes place the inflation or positive pole shell 101 bottom takes place the inflation, can make mutual extrusion between draw-in groove 202 and the joint piece 104, thereby promote the intensity and the leakproofness of junction, avoid the weeping.
Specifically, the pin groove 203 is an open arc, and the pin groove 203 covers 2/3 area of a ring at the bottom of the positioning pin 103.
Through above-mentioned technical scheme, set pin groove 203 to arc to wrap up the ring of locating pin 103 bottom, thereby fix locating pin 103 through pin groove 203, promote the intensity of connecting.
Specifically, the clamping piece 104 is inserted into the fixing groove 302, and the top of the insulating piece 301 is higher than the top of the positive casing 101.
Through the technical scheme, the clamping sheet 104 is inserted into the fixing groove 302, so that the insulating sheet 301 is fixed through the matching of the clamping sheet 104 and the concave clamping groove 202, and the joint of the clamping sheet 104 and the concave clamping groove 202 is isolated and sealed.
When the anti-explosion battery is used, the positioning pin 103 is arranged in the positive electrode shell 101 and is inserted into the pin groove 203 of the negative electrode shell 201 through the positioning pin 103, so that the connectivity between the positive electrode shell 101 and the negative electrode shell 201 is improved, a gap is reserved between the positioning pin 103 and the negative electrode shell 201, the expandable space of the battery inner core 4 is increased, the anti-explosion is performed through increasing the strength and the telescopic space of the battery inner core 4, and the anti-explosion effect is achieved;
through set up joint piece 104 at the opening part of positive pole shell 101 to set up sunken draw-in groove 202 on negative pole shell 201, and at the internally mounted insulating piece 301 of sunken draw-in groove 202, and cooperate through joint piece 104 and fixed slot 302, thereby promoting passing through of insulating piece 301 leakproofness, carry out further enhancement to being connected between positive pole shell 101 and the negative pole shell 201, reached the effect that promotes the security.
It should be noted that, in this document, 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. Also, 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.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a knot formula lithium manganese cell with explosion-proof structure, includes positive pole mechanism (1), negative pole mechanism (2), sealing mechanism (3) and battery inner core (4), its characterized in that: a negative electrode mechanism (2) is clamped in the positive electrode mechanism (1), a sealing mechanism (3) is arranged at the splicing position of the positive electrode mechanism (1) and the negative electrode mechanism (2), and a battery inner core (4) is arranged in the positive electrode mechanism (1) and the negative electrode mechanism (2);
the positive electrode mechanism (1) comprises a positive electrode shell (101), an insulating plate (102) is fixedly connected to the inner wall of the positive electrode shell (101), a positioning pin (103) is fixedly connected to the lower portion of the insulating plate (102), and a clamping piece (104) is arranged at an opening of the positive electrode shell (101);
the negative electrode mechanism (2) comprises a negative electrode shell (201), a concave clamping groove (202) is formed in the middle section of the negative electrode shell (201), and a pin groove (203) is formed in the edge of the bottom of the negative electrode shell (201);
sealing mechanism (3) are including insulating piece (301), fixed slot (302) have been seted up to the surface of insulating piece (301).
2. The button lithium manganese cell with explosion-proof structure of claim 1, wherein: the insulating plate (102) in the positive electrode shell (101) is arranged at a position directly contacting with the outer surface of the negative electrode shell (201).
3. The button lithium manganese cell with explosion-proof structure as claimed in claim 1, wherein: the positioning pin (103) is vertically downward, a circular ring is arranged at the bottom of the positioning pin (103), and the circular ring is inserted in the pin groove (203).
4. The button lithium manganese cell with explosion-proof structure as claimed in claim 1, wherein: the outer surface of the positioning pin (103) is plugged with the pin groove (203), and a gap is reserved between the outer surface of the positioning pin and the outer surface of the negative electrode shell (201).
5. The button lithium manganese cell with explosion-proof structure as claimed in claim 1, wherein: sunken draw-in groove (202) that negative pole shell (201) surface was seted up and the inner wall overlap joint of insulating piece (301), the inner wall of insulating piece (301) is identical completely with the inner wall of sunken draw-in groove (202).
6. The button lithium manganese cell with explosion-proof structure as claimed in claim 1, wherein: the pin groove (203) is an opening arc, and the pin groove (203) wraps a 2/3 area of a ring at the bottom of the positioning pin (103).
7. The button lithium manganese cell with explosion-proof structure as claimed in claim 1, wherein: the clamping sheet (104) is inserted into the fixing groove (302), and the top of the insulating sheet (301) is higher than the top of the positive electrode shell (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222420939.6U CN218448326U (en) | 2022-09-13 | 2022-09-13 | Button lithium manganese cell with explosion-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222420939.6U CN218448326U (en) | 2022-09-13 | 2022-09-13 | Button lithium manganese cell with explosion-proof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218448326U true CN218448326U (en) | 2023-02-03 |
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ID=85105189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222420939.6U Active CN218448326U (en) | 2022-09-13 | 2022-09-13 | Button lithium manganese cell with explosion-proof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218448326U (en) |
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2022
- 2022-09-13 CN CN202222420939.6U patent/CN218448326U/en active Active
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