CN218602667U - Explosion-proof lithium battery structure and mobile phone battery - Google Patents
Explosion-proof lithium battery structure and mobile phone battery Download PDFInfo
- Publication number
- CN218602667U CN218602667U CN202223077460.3U CN202223077460U CN218602667U CN 218602667 U CN218602667 U CN 218602667U CN 202223077460 U CN202223077460 U CN 202223077460U CN 218602667 U CN218602667 U CN 218602667U
- Authority
- CN
- China
- Prior art keywords
- battery
- explosion
- proof
- layer
- lithium battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model relates to an explosion-proof lithium battery structure and a mobile phone battery, wherein the lithium battery structure comprises an electric core arranged inside a shell; and explosion-proof battery terminals arranged at the positive end and the negative end of the battery core; the inner surface of the battery cell is provided with a ceramic layer, and the outer surface of the battery cell is sequentially wrapped with an insulating layer, a heat dissipation layer and a waterproof layer; the first explosion-proof layer and the second explosion-proof layer are arranged on the battery terminal, so that the internal pressure of the battery body is released timely, and the safety of the battery is ensured; through the arrangement of the ceramic layer, thermal runaway caused by thermal shrinkage is solved, the ceramic composite diaphragm, the electrolyte and the anode and cathode materials have good soaking, liquid absorbing and liquid retaining capabilities, and the ceramic coated diaphragm can neutralize a small amount of hydrofluoric acid in the electrolyte to prevent explosion of the battery due to air inflation. The utility model discloses can prevent that the lithium cell from leading to the explosion owing to the physiosis in charging, the discharge process, ensure the security that the lithium cell used, prolong the life of lithium cell.
Description
Technical Field
The utility model relates to a lithium cell technical field particularly, relates to an explosion-proof lithium cell structure and mobile phone battery.
Background
Lithium ion batteries have been commonly used in portable electrical appliances such as portable computers, video cameras, and mobile communications due to their unique performance advantages. Along with the shortage of energy and the pressure in the environmental protection aspect of the world, lithium batteries have become mainstream, rechargeable lithium batteries are one of numerous lithium batteries, and lithium ion batteries are in charging and discharging, can be accompanied with the process of inflation, easily form the swell and even explode, on one hand, when lithium batteries are in the charging process, certain lithium ion can be separated out to the positive pole, can increase the distance of negative pole layer after entering into the negative pole, the inflation has been aroused from this, on the other hand lithium ion batteries are in the use, the violent reaction of being close to the short circuit takes place in the battery inside, generate a large amount of heat, and then lead to electrolyte decomposition gasification, lead to the battery physiosis and lead to the explosion. The existing lithium battery is lack of an explosion-proof structure, and an explosion-proof structure of the lithium battery is urgently needed to be provided, so that the use safety of the lithium battery is ensured.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a solve above-mentioned technical problem, provide an explosion-proof lithium battery structure and mobile phone batteries, can prevent that the lithium cell from leading to the explosion owing to the physiosis in charging, the discharge process, ensure the security that the lithium cell used, prolong the life of lithium cell.
The utility model provides an explosion-proof lithium battery structure includes at least: the battery cell is arranged in the shell; and explosion-proof battery terminals arranged at the positive end and the negative end of the battery core; the internal surface of electricity core is equipped with the ceramic layer, the surface of electricity core wraps up insulating layer, heat dissipation layer and waterproof layer in proper order.
Preferably, the ceramic layer is a ceramic particle coated diaphragm, which takes PP, PE or a multilayer composite diaphragm as a substrate, the surface of the ceramic layer is coated with a layer of Al203, siO2, mg (OH) 2 or other inorganic ceramic particles with excellent heat resistance, the ceramic particle is tightly bonded with the substrate after being processed by a special process, the flexibility of organic matters and the heat stability of inorganic matters are stably combined, the high temperature resistance, the heat shrinkage resistance and the puncture strength of the diaphragm are improved, and the safety performance of the battery is further improved, wherein the ceramic composite layer can solve the safety problems of battery combustion and explosion caused by thermal runaway caused by thermal shrinkage of the PP and PE diaphragms; on the other hand, the ceramic composite diaphragm has good capacity of infiltrating, absorbing and retaining liquid with electrolyte and anode and cathode materials, the service life of the lithium battery is greatly prolonged, and further, the ceramic coated diaphragm can neutralize a small amount of hydrofluoric acid in the electrolyte to prevent the battery from ballooning.
In the technical scheme, the insulating layer is arranged to prevent potential safety hazards caused by electric leakage of the battery body, so that the safety of the battery is ensured; the arrangement of the heat dissipation layer can reduce the temperature of the battery in the charging and discharging process, keep the stability of the internal pressure of the battery and reduce the risk of bulging of the battery; the waterproof layer set up the heat dissipation layer waterproof nature that can increase, avoid the impaired swell that arouses of battery, reduce the risk of battery explosion, the life of extension battery.
Preferably, the battery case further includes: and inserting ports are arranged at the positive end and the negative end of the battery cell.
Furthermore, the explosion-proof battery terminal is connected to the positive terminal and the negative terminal of the battery cell through the insertion port.
Among the above-mentioned technical scheme, through setting up the specific interface of battery terminal at battery case, guarantee the stability of being connected between battery terminal and the battery body, improve battery body power transmission's stability.
Further, the explosion-proof battery terminal at least comprises: the rivet is characterized in that a rivet rod part of the rivet is of a hollow structure, a first explosion-proof layer and a second explosion-proof layer are respectively arranged at two ends of the hollow structure, and electrode connecting sheets are arranged on two sides of one end, close to the battery core, of the rivet.
Further, the first explosion-proof layer is connected with the inner surface of the battery core.
In the technical scheme, the battery terminal is fastened at the electrode of the battery body by arranging the rivet, so that the stability of the battery terminal is ensured; during the use, when the inside produced gas of battery body is too much, inside atmospheric pressure bursts first explosion-proof layer, reduce internal pressure, when internal pressure reaches the appointed blasting valve value of second explosion-proof layer, inside atmospheric pressure bursts the second explosion-proof layer, release battery body internal pressure, guarantee the safety of battery, hollow structure's setting is the inside space of alleviating inside atmospheric pressure that provides of battery body, in the time of the use, when first explosion-proof layer bursts, and atmospheric pressure has not reached when reaching the appointed blasting valve value of second explosion-proof layer yet, hollow structure's setting can guarantee the normal use of battery.
Further, the electrode connecting sheet is connected with the positive electrode end and the negative electrode end of the battery cell through conductive adhesive.
Among the above-mentioned technical scheme, through the electric conductivity that the conducting resin electricity is connected and has been increased the battery, guaranteed the connection effect.
Further, a sealing layer is arranged between the rivet and the shell.
In the technical scheme, the sealing performance of the whole lithium battery structure is effectively guaranteed by arranging the sealing layer, the liquid in the lithium battery is prevented from overflowing, and the use safety of the lithium battery is guaranteed.
Further, the insulating layer is connected with the radiating layer through heat conducting glue.
In the technical scheme, the arrangement of the heat conduction glue can increase the heat conductivity, and is favorable for heat dissipation of the heat dissipation layer.
Further, a cavity is formed between the heat dissipation layer and the waterproof layer, and cooling liquid is filled in the cavity.
In the technical scheme, the cooling liquid is arranged, so that the heat dissipation effect of the lithium battery is ensured, the heat dissipation efficiency of the lithium battery is improved, and the battery is prevented from bulging or exploding; the waterproof layer is arranged to prevent potential safety hazards caused by leakage of the cooling liquid, and the safety of the battery is further guaranteed.
As another preferred, the utility model also provides a mobile phone battery, mobile phone battery uses as above explosion-proof lithium battery structure.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through set up first explosion-proof layer and second explosion-proof layer at the battery terminal, in good time release battery body internal pressure guarantees the safety of battery.
2. Through the arrangement of the ceramic layer, on one hand, the safety problems of battery combustion and explosion caused by thermal runaway caused by thermal contraction of PP and PE diaphragms can be solved; on the other hand, the ceramic composite diaphragm has good capacity of infiltrating, absorbing and retaining liquid with electrolyte and anode and cathode materials, the service life of the lithium battery is greatly prolonged, and further, the ceramic coated diaphragm can neutralize a small amount of hydrofluoric acid in the electrolyte to prevent the explosion of the battery caused by gas expansion.
3. The cooling liquid is arranged, so that the heat dissipation effect of the lithium battery is ensured, the heat dissipation efficiency of the lithium battery is improved, and the battery is prevented from bulging or exploding; the waterproof layer is arranged to prevent potential safety hazards caused by leakage of the cooling liquid, and the safety of the battery is further guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of an explosion-proof lithium battery structure of the present invention.
Fig. 2 is a schematic view of a part of the structure of an explosion-proof lithium battery of the present invention.
Fig. 3 is a schematic structural diagram of an explosion-proof battery terminal according to the present invention.
The reference numbers illustrate: the explosion-proof battery comprises a battery core 100, a positive electrode terminal 101, a negative electrode terminal 102, a ceramic layer 103, a shell 200, a plug interface 201, an explosion-proof battery terminal 300, a rivet 301, a first explosion-proof layer 302, a second explosion-proof layer 303, an electrode connecting sheet 304, an insulating layer 401, a heat dissipation layer 402, a waterproof layer 403, a cavity 404 and a sealing layer 405.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1 to fig. 3, in a preferred embodiment, the present invention provides an explosion-proof lithium battery structure, which at least includes: the battery cell 100 is disposed inside the casing 200; and explosion-proof battery terminals 300 provided at the positive terminal 101 and the negative terminal 102 of the battery cell 100; the inner surface of the battery cell 100 is provided with a ceramic layer 103, and the outer surface of the battery cell 100 is sequentially wrapped with an insulating layer 401, a heat dissipation layer 402 and a waterproof layer 403.
Preferably, the ceramic layer 103 is a ceramic particle coated diaphragm, which is formed by coating a layer of inorganic ceramic particles with excellent heat resistance such as Al203, siO2, mgOH2 or other inorganic ceramic particles on the surface of a substrate made of PP, PE or multi-layer composite diaphragms, and is tightly bonded with the substrate after being processed by a special process, so that the flexibility of organic matters and the thermal stability of inorganic matters are stably combined, the high temperature resistance, the heat shrinkage resistance and the puncture strength of the diaphragm are improved, and the safety performance of the battery is further improved, wherein the ceramic composite layer can solve the safety problems of battery combustion and explosion caused by thermal runaway caused by thermal shrinkage of PP and PE diaphragms; on the other hand, the ceramic composite diaphragm, the electrolyte, the anode material and the cathode material have good capacity of soaking, absorbing and retaining liquid, the service life of the lithium battery is greatly prolonged, and in the embodiment, the ceramic coated diaphragm can neutralize a small amount of hydrofluoric acid in the electrolyte to prevent the battery from ballooning.
In the specific implementation process, potential safety hazards caused by electric leakage of the battery body are prevented by arranging the insulating layer 401, so that the safety of the battery is ensured; the arrangement of the heat dissipation layer 402 can reduce the temperature of the battery in the charging and discharging process, keep the internal pressure of the battery stable and reduce the risk of battery bulge; the waterproof layer 403 is arranged to increase the waterproof property of the heat dissipation layer 402, so that the battery is prevented from being damaged to cause swelling, the risk of explosion of the battery is reduced, and the service life of the battery is prolonged.
Referring to fig. 2, preferably, the battery case 200 further includes: plug ports 201 are arranged at the positive terminal 101 and the negative terminal 102 of the battery cell 100.
In this embodiment, the explosion-proof battery terminal 300 is connected to the positive terminal 101 and the negative terminal 102 of the battery cell 100 through the plug interface 201.
Among the above-mentioned technical scheme, through set up specific interface 201 of battery terminal at battery case 200, guarantee the stability of being connected between battery terminal and the battery body, improve battery body power transmission's stability.
Referring to fig. 3, in the present embodiment, the explosion-proof battery terminal 300 at least includes: the battery cell structure comprises a rivet 301, wherein a rivet rod part of the rivet is of a hollow structure, two ends of the hollow structure are respectively provided with a first explosion-proof layer 302 and a second explosion-proof layer 303, and two sides of one end, close to the battery cell 100, of the rivet 301 are provided with electrode connecting sheets 304.
In this embodiment, the first explosion-proof layer 302 is connected to the inner surface of the battery cell 100.
In the technical scheme, the battery terminal is fastened at the electrode of the battery body by arranging the rivet 301, so that the stability of the battery terminal is ensured; during the use, when the inside produced gas of battery body is too much, inside atmospheric pressure is with first explosion-proof layer 302 bursting, reduce internal pressure, when internal pressure reaches the blasting valve value that second explosion-proof layer 303 appointed, inside atmospheric pressure is with second explosion-proof layer 303 bursting, release battery body internal pressure, guarantee the safety of battery, hollow structure sets up to the inside space of alleviating inside atmospheric pressure that provides of battery body, during the use, when first explosion-proof layer 302 bursting, and atmospheric pressure has not reached when reaching the blasting valve value that second explosion-proof layer 303 appointed, hollow structure's setting can guarantee the normal use of battery.
In this embodiment, the electrode connecting pieces 304 are connected to the positive terminal 101 and the negative terminal 102 of the battery cell 100 through conductive adhesive.
Among the above-mentioned technical scheme, through the electric conductivity that the conducting resin electricity is connected and has been increased the battery, guaranteed the connection effect.
In this embodiment, a sealing layer 405 is disposed between the rivet 301 and the housing 200.
In the specific implementation process, the sealing performance of the whole lithium battery structure is effectively guaranteed by arranging the sealing layer 405, the liquid in the lithium battery is prevented from overflowing, and the use safety of the lithium battery is guaranteed.
In this embodiment, the insulating layer 401 is connected to the heat dissipation layer 402 by a thermal conductive adhesive.
In the specific implementation process, the thermal conductivity can be increased by the arrangement of the thermal conductive adhesive, which is beneficial to the heat dissipation of the heat dissipation layer 402.
In this embodiment, a cavity 404 is formed between the heat dissipation layer 402 and the waterproof layer 403, and the cavity 404 is filled with a cooling liquid.
In the technical scheme, the cooling liquid is arranged, so that the heat dissipation effect of the lithium battery is ensured, the heat dissipation efficiency of the lithium battery is improved, and the battery is prevented from bulging or exploding; the waterproof layer 403 is arranged to prevent potential safety hazards caused by leakage of the cooling liquid, and the safety of the battery is further guaranteed.
As another preferred, the utility model also provides a mobile phone battery, mobile phone battery uses the explosion-proof lithium battery structure as above.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through set up first explosion-proof layer and second explosion-proof layer at battery terminal, in good time release battery body internal pressure guarantees the safety of battery.
2. Through the arrangement of the ceramic layer, on one hand, the safety problems of battery combustion and explosion caused by thermal runaway caused by thermal contraction of PP and PE diaphragms can be solved; on the other hand, the ceramic composite diaphragm has good infiltration and liquid absorption and retention capabilities with electrolyte and anode and cathode materials, the service life of the lithium battery is greatly prolonged, and further, the ceramic coated diaphragm can neutralize a small amount of hydrofluoric acid in the electrolyte to prevent the battery from explosion caused by air inflation.
3. The cooling liquid is arranged, so that the heat dissipation effect of the lithium battery is ensured, the heat dissipation efficiency of the lithium battery is improved, and the battery is prevented from bulging or exploding; the waterproof layer is arranged to prevent potential safety hazards caused by leakage of the cooling liquid, and the safety of the battery is further guaranteed.
In the description of the present invention, it is to be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element 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" and "first" 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" or "second" 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 specifically limited otherwise.
While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.
Claims (10)
1. An explosion-proof lithium battery structure, characterized by comprising at least: the battery cell (100) is arranged inside the shell (200); and explosion-proof battery terminals (300) provided at the positive terminal (101) and the negative terminal (102) of the battery cell (100); the battery is characterized in that a ceramic layer (103) is arranged on the inner surface of the battery cell (100), and an insulating layer (401), a heat dissipation layer (402) and a waterproof layer (403) are sequentially wrapped on the outer surface of the battery cell (100).
2. Explosion-proof lithium battery construction according to claim 1, characterized in that the housing (200) further comprises: plug ports (201) are arranged at the positive end (101) and the negative end (102) of the battery cell (100).
3. Explosion-proof lithium battery structure according to claim 2, characterized in that the explosion-proof battery terminals (300) are connected to the positive terminal (101) and the negative terminal (102) of the electrical core (100) through the plug-in interface (201).
4. Explosion-proof lithium battery structure according to claim 3, characterized in that the explosion-proof battery terminal (300) comprises at least: the rivet comprises a rivet (301), the rivet rod part of the rivet is of a hollow structure, a first explosion-proof layer (302) and a second explosion-proof layer (303) are respectively arranged at two ends of the hollow structure, and electrode connecting sheets (304) are arranged on two sides of one end, close to the battery core (100), of the rivet (301).
5. Explosion-proof lithium battery structure according to claim 4, characterized in that the first explosion-proof layer (302) is connected to the inner surface of the electrical core (100).
6. Explosion-proof lithium battery construction according to claim 5, characterized in that the electrode connection tabs (304) are connected with the positive terminal (101) and the negative terminal (102) of the electrical core (100) by means of a conductive glue.
7. Explosion proof lithium battery construction according to claim 6, characterized in that a sealing layer (405) is provided between the rivet (301) and the housing (200).
8. Explosion proof lithium battery construction according to claim 7, characterized in that the insulating layer (401) is connected to the heat sink layer (402) by means of a thermally conductive glue.
9. The lithium explosion-proof battery structure of claim 8, wherein a cavity (404) is formed between the heat dissipation layer (402) and the waterproof layer (403), and the cavity (404) is filled with a cooling liquid.
10. A mobile phone battery, characterized in that the mobile phone battery employs the explosion-proof lithium battery structure as claimed in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223077460.3U CN218602667U (en) | 2022-11-21 | 2022-11-21 | Explosion-proof lithium battery structure and mobile phone battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223077460.3U CN218602667U (en) | 2022-11-21 | 2022-11-21 | Explosion-proof lithium battery structure and mobile phone battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218602667U true CN218602667U (en) | 2023-03-10 |
Family
ID=85406272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223077460.3U Active CN218602667U (en) | 2022-11-21 | 2022-11-21 | Explosion-proof lithium battery structure and mobile phone battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218602667U (en) |
-
2022
- 2022-11-21 CN CN202223077460.3U patent/CN218602667U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012081173A1 (en) | Battery pack | |
| WO2016032092A1 (en) | Battery module | |
| CN108198966A (en) | A kind of battery cover board with novel pole sealing structure | |
| CN217719736U (en) | Battery cell, battery and power consumption device | |
| WO2023138411A1 (en) | Thermal insulation element, battery and electric apparatus | |
| CN111933831A (en) | Button lithium battery and preparation method thereof | |
| CN107799692A (en) | A kind of safety-type li battery shell | |
| CN109616717A (en) | A kind of vacuum battery pack system suitable for electric car | |
| KR102308017B1 (en) | Cylindrical Secondary Battery having Hollow portion filled with Thermal Conductive Resin | |
| CN217606982U (en) | Battery and electric equipment | |
| US11069935B2 (en) | Cell and battery | |
| CN113140851A (en) | Lithium ion battery module | |
| CN218602667U (en) | Explosion-proof lithium battery structure and mobile phone battery | |
| CN211556057U (en) | Explosion-proof device for lithium battery | |
| CN102544397A (en) | Lithium-ion secondary battery | |
| CN215771297U (en) | Safe high temperature resistant cylindrical lithium ion battery | |
| WO2022170998A1 (en) | Battery and electronic device | |
| CN114039173B (en) | Electrochemical device, battery module and electric equipment | |
| CN215731783U (en) | Battery and electronic device | |
| CN219843021U (en) | Battery cell, battery and electricity utilization device | |
| CN216120501U (en) | High-temperature-resistant lithium ion battery structure | |
| CN219779015U (en) | Battery monomer, battery and power consumption device | |
| CN216288655U (en) | High-temperature-resistant high-safety lithium battery core | |
| CN219998296U (en) | Reel core structure, battery core and button cell | |
| CN221201272U (en) | Heating cell and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |