CN105006588A - Power type lithium ion battery - Google Patents
Power type lithium ion battery Download PDFInfo
- Publication number
- CN105006588A CN105006588A CN201510322024.3A CN201510322024A CN105006588A CN 105006588 A CN105006588 A CN 105006588A CN 201510322024 A CN201510322024 A CN 201510322024A CN 105006588 A CN105006588 A CN 105006588A
- Authority
- CN
- China
- Prior art keywords
- sealing plug
- discharge chamber
- lithium ion
- cover plate
- ion 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.)
- Pending
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 239000003792 electrolyte Substances 0.000 claims abstract description 4
- 239000000178 monomer Substances 0.000 claims abstract description 4
- 239000013536 elastomeric material Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000005030 aluminium foil Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a power type lithium ion battery. The power type lithium ion battery comprises a shell and a cover plate arranged at the upper end of the shell. A monomer cell is packaged in the shell, the shell is filled with electrolytes, the cover plate is provided with an exhaust device, the exhaust device comprises an exhaust cavity in the cover plate, and a vent hole communicated with space in the shell is formed in the surface of the cover plate and connected with the exhaust cavity. A sealing plug is movably arranged in the exhaust cavity, the sealing plug freely sinks to plug the vent hole, and an exhaust hole located over the sealing plug is formed in the cover plate. Gas of the power type lithium ion battery can be exhausted out of the exhaust hole, the pressure in the shell is prevented from being increased, and the complete reliability of the battery is improved.
Description
Technical field
the present invention relates to cell art, specifically a kind of power-type lithium ion battery.
Background technology
When the gas pressure in container reaches certain value, just need the air release of the inside out, otherwise just likely occur the danger that increasing pressure causes greatly container and blasts, so, in the various closed container that may blast, be generally all provided with safety device.When system pressure is too high, safety device just can automatically by media discharge superfluous in system in low-pressure system or air.Safety device comprises safety valve and explosion-protection equipment etc., and rupture pressure disc is exactly the one in explosion-protection equipment.When system pressure ramp-up rate is very fast, particularly, when blasting or be attended by the exothermic reaction of shaking individually the generation of quick-fried situation, safety valve often has little time effect, and the responsiveness of safety anti-explosive film is then faster than safety valve.
Lithium ion battery belongs to the high battery of energy density.For the enclosed cell that energy density is high, the relevant device of charger can be made to break down, overcharge or cause the situation of other improper use to occur, in these cases, along with the continuation of inside battery chemical reaction, inside battery produces abnormal gas, causes cell internal pressure excessive, danger battery being had blast.Therefore, lithium ion battery is too high at cell internal pressure, protective circuit is malfunctioning or overcharge, cross put, danger that the occasion such as high temperature exists blast, in order to prevent the generation of battery explosion, battery is generally all provided with explosion-protection equipment.Existing explosion protection for batteries adopts following structure: 1. in combination plate, be provided with lead foil, aluminium foil, Copper Foil, forms pressure relief safety valve; 2. explosionproof hole place weldering aluminium foil rupture pressure disc on Aluminum cover; Explosionproof hole place bit copper paper tinsel rupture pressure disc on steel deck-plate.The safety valve structure of structure 1 is complicated, and manufacturing cost is high, and Copper Foil is perishable; The rupture pressure disc of structure 2 is plane substantially, wishes by drawing crack during explosion, but the bad control of tension force and creasing easily during assembling, consistency of detonating difference, and drawing crack needs larger stress, and high to equipment requirement on machining accuracy, system complex, foil easily punctures and corrodes, and manufacturing cost is high.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of power-type lithium ion battery, and explosion-proof effect is good, substantially increases the security reliability of battery.
In order to solve the problems of the technologies described above, the present invention takes following technical scheme:
A kind of power-type lithium ion battery, comprise housing and the cover plate being contained in this housing upper end, monomer battery core is packaged with in this housing, electrolyte is filled with in housing, described cover plate is provided with exhaust apparatus, this exhaust apparatus comprises the discharge chamber be located in cover plate, cover inner surface is provided with the air vent hole be communicated with enclosure interior space, this air vent hole is connected with discharge chamber, sealing plug is movably equipped with in this discharge chamber, the free subsidence of sealing plug blocks air vent hole, and cover plate is provided with the steam vent be positioned at directly over sealing plug.
Described discharge chamber top is provided with the protruding block risen for baffle seal beyond the Great Wall.
Described cover plate side is also provided with side steam vent, and this side steam vent is communicated with discharge chamber.
Also be provided with spring in described discharge chamber, this spring one end is fixed on discharge chamber top, the other end is fixed on sealing plug upper surface.
The height of described sealing plug is less than the height of discharge chamber, and the width of sealing plug is less than the width of discharge chamber.
Described sealing plug is that elastomeric material is made.
The present invention is by the cover board arranging discharge chamber and steam vent, and when the pressure of battery container inside is excessive, gas can be discharged from this discharge chamber and steam vent, ensures that cell pressure can not be excessive, improves the security reliability of battery.
Accompanying drawing explanation
Accompanying drawing 1 is cross-sectional view of the present invention;
Accompanying drawing 2 is the cross-sectional view of cover plate of the present invention.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with accompanying drawing, the invention will be further described.
As shown in figure 1 and 2, present invention is disclosed a kind of power-type lithium ion battery, comprise housing 14 and the cover plate 11 being contained in this housing 14 upper end, monomer battery core 12 is packaged with in this housing 14, electrolyte is filled with in housing 14, described cover plate 11 is provided with exhaust apparatus 15, this exhaust apparatus 15 comprises the discharge chamber 7 be located in cover plate 11, cover plate 11 inner surface is provided with the air vent hole 6 be communicated with housing 14 inner space, this air vent hole 6 is connected with discharge chamber 7, sealing plug 4 is movably equipped with in this discharge chamber 7, sealing plug 4 free subsidence blocks air vent hole, cover plate 11 is provided with the steam vent 2 be positioned at directly over sealing plug.The height of sealing plug 4 is less than the height of discharge chamber, and the width of sealing plug is less than the width of discharge chamber.Make all there is spatial joint clearance between sealing plug and discharge chamber sidewall and end face.
Discharge chamber 7 top is provided with the protruding block 1 risen for baffle seal plug 4, can be stopped and cannot continue to rise after sealing plug 4 rises to certain altitude because being subject to gas pressure by this protruding block, ensures that sealing plug can not block the steam vent 2 on cover plate 11.
In addition, in order to ensure timely exhaust, be also provided with side steam vent 5 in cover plate 11 side, this side steam vent 5 is communicated with discharge chamber 7, thus gas can be discharged from the side and above simultaneously.
Also be provided with spring 3 in discharge chamber 7, this spring 3 one end is fixed on discharge chamber top, the other end is fixed on sealing plug upper surface.Sealing plug can be sunk automatically, and sealing plug can not be ejected when pressure is not very large time, ensure that the gas in housing is not easy to reveal.The pressure of this spring can be arranged according to the gas pressure in housing, and ensureing when the pressure in housing is excessive can jack-up sealing plug smoothly, and when pressure does not reach early warning value, sealing plug cannot by jack-up.Sealing plug is that elastomeric material is made.
When the pressure in housing is normal, now sealing plug can not by jack-up, and sealing plug blocks air vent hole, ensures that the gas in housing can not leak.When battery last operational heat, pressure in housing increases gradually, when gas pressure exceedes early warning value, now gas can by sealing plug jack-up, gas is discharged through the gap between sealing plug and discharge chamber and steam vent and side steam vent, realizes pressure release object, when pressure recovery is normal, gas cannot upwards jack-up sealing plug again, and now sealing plug resets and again blocks air vent hole.
It should be noted that, the above is not the restriction to technical solution of the present invention, and under the prerequisite not departing from creation design of the present invention, any apparent replacement is all within protection scope of the present invention.
Claims (6)
1. a power-type lithium ion battery, comprise housing and the cover plate being contained in this housing upper end, monomer battery core is packaged with in this housing, electrolyte is filled with in housing, it is characterized in that, described cover plate is provided with exhaust apparatus, this exhaust apparatus comprises the discharge chamber be located in cover plate, cover inner surface is provided with the air vent hole be communicated with enclosure interior space, this air vent hole is connected with discharge chamber, be movably equipped with sealing plug in this discharge chamber, the free subsidence of sealing plug blocks air vent hole, and cover plate is provided with the steam vent be positioned at directly over sealing plug.
2. power-type lithium ion battery according to claim 1, is characterized in that, described discharge chamber top is provided with the protruding block risen for baffle seal beyond the Great Wall.
3. power-type lithium ion battery according to claim 2, is characterized in that, described cover plate side is also provided with side steam vent, and this side steam vent is communicated with discharge chamber.
4. power-type lithium ion battery according to claim 3, is characterized in that, is also provided with spring in described discharge chamber, and this spring one end is fixed on discharge chamber top, the other end is fixed on sealing plug upper surface.
5. power-type lithium ion battery according to claim 4, is characterized in that, the height of described sealing plug is less than the height of discharge chamber, and the width of sealing plug is less than the width of discharge chamber.
6. power-type lithium ion battery according to claim 5, is characterized in that, described sealing plug is that elastomeric material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510322024.3A CN105006588A (en) | 2015-06-12 | 2015-06-12 | Power type lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510322024.3A CN105006588A (en) | 2015-06-12 | 2015-06-12 | Power type lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105006588A true CN105006588A (en) | 2015-10-28 |
Family
ID=54379174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510322024.3A Pending CN105006588A (en) | 2015-06-12 | 2015-06-12 | Power type lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105006588A (en) |
-
2015
- 2015-06-12 CN CN201510322024.3A patent/CN105006588A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102641835B1 (en) | Battery case body, battery, power usage device, battery manufacturing method and device | |
| JP7429719B2 (en) | Batteries, power consumption equipment, battery manufacturing methods and devices | |
| CN106329027A (en) | High-safety lithium ion battery pack | |
| CN112018302B (en) | Battery, electric device, method and equipment for preparing battery | |
| CN112018320B (en) | Box for battery, electric device, method and equipment for preparing battery | |
| CN112018300B (en) | Battery box, battery, electric device, and method and device for preparing battery | |
| CN112018322B (en) | Battery box, battery, electric device, and method and device for preparing battery | |
| CN106340600A (en) | Power type cylindrical lithium ion battery explosion-proof cap | |
| CN203466244U (en) | Power battery module and safety protection device thereof | |
| US20220328927A1 (en) | Battery, electric apparatus, and method and device for preparing battery | |
| CN202019008U (en) | Explosion-proof cover plate of lithium battery | |
| EP4362187A1 (en) | Battery, power consuming apparatus, and method and apparatus for preparing battery | |
| CN203103365U (en) | Multi-layer-structure explosion-proof device for power battery cover plate | |
| WO2022082393A1 (en) | Box body for battery, battery, electric apparatus, and battery manufacturing method and device | |
| CN106654080A (en) | Novel cylindrical lithium ion battery cover | |
| CN218385629U (en) | Battery cell and battery module | |
| JP2023512691A (en) | BATTERY CASE, BATTERY CELL, BATTERY, BATTERY CASE MANUFACTURING METHOD AND APPARATUS | |
| CN105006588A (en) | Power type lithium ion battery | |
| CN208256783U (en) | It is a kind of fill anti-flammability gas, degree of protection meets the battery pack of IP67 or more | |
| CN205335388U (en) | Overheated explosion -proof mechanism of battery | |
| JP7417763B2 (en) | Batteries, power consuming devices, methods and apparatus for manufacturing batteries | |
| CN214957238U (en) | Explosion-proof lithium battery | |
| KR102642182B1 (en) | Battery box body, battery, electrical device, battery manufacturing method and device | |
| CN116964847A (en) | Battery cell, battery, electricity utilization device, method and device for preparing battery cell | |
| EP3989335A1 (en) | Battery module, and battery pack and power storage device including same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151028 |