CN106410079A - Cylindrical lithium-ion power battery aluminum shell with high safety and high performance - Google Patents
Cylindrical lithium-ion power battery aluminum shell with high safety and high performance Download PDFInfo
- Publication number
- CN106410079A CN106410079A CN201610817421.2A CN201610817421A CN106410079A CN 106410079 A CN106410079 A CN 106410079A CN 201610817421 A CN201610817421 A CN 201610817421A CN 106410079 A CN106410079 A CN 106410079A
- Authority
- CN
- China
- Prior art keywords
- aluminum hull
- cylindrical lithium
- high performance
- lithium ion
- connection sheet
- 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.)
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Classifications
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- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- 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
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a cylindrical lithium-ion power battery aluminum shell with high safety and high performance. The cylindrical lithium-ion power battery aluminum shell with high safety and high performance comprises a shell, and an anode cover plate and an anode cover plate correspondingly arranged on the shell; the shell is of a double-layer structure which comprises an outer aluminum shell and an inner aluminum shell, and the inner diameter of the outer aluminum shell is 1.1-1.5 times that of the inner aluminum shell; and solid stuffing which is 0.2-0.8 times a cavity volume and has a sublimation feature is filled between the outer aluminum shell and the inner aluminum shell. As the shell is set into the double-layer structure, and the solid stuffing with the sublimation feature is filled between the two layers of the double-layer structure, the cylindrical lithium-ion power battery aluminum shell with high safety and high performance can efficiently prevent influences from variation of an outer circumstance temperature to an interior temperature of a battery; meanwhile, the cylindrical lithium-ion power battery aluminum shell with high safety and high performance has an overcharge protection characteristic, can efficiently slow the heat release rate of the battery and can reduce the probability of bursting into flames.
Description
Technical field
The present invention relates to technical field of lithium batteries, more particularly, to a kind of high security, high performance cylindrical lithium ion power
Battery aluminum shell.
Background technology
With country to the support of new-energy automobile industry and popularization, market is also increasing to the demand of lithium battery, with
The new diseases of a collection of high-energy-density such as ternary, market proposes higher to the safety of lithium ion battery and performance
Requirement；
Lithium ion battery at this stage is all single hull structure, and battery capacity is influenced by ambient temperature very big, causes electricity
Pond partial volume capacity is inaccurate, and battery combo is difficult, and operating mode concordance is deteriorated；
Meanwhile, to account for cover plate area less for lithium ion battery explosion-proof valve at this stage, and does not have temperature switch, explosion-proof, anti-
Overcharge effect limited, there is larger hidden danger.
Therefore it provides a kind of high security, high performance cylindrical lithium ion electrokinetic cell aluminum hull are necessary.
Content of the invention
In view of the defect that above-mentioned prior art exists, the purpose of the present invention is to propose to a kind of high security, high performance circle
Post lithium-ion-power cell aluminum hull.
The purpose of the present invention will be achieved by the following technical programs：
A kind of high security, high performance cylindrical lithium ion electrokinetic cell aluminum hull, including housing, are correspondingly arranged in described shell
Positive pole cover plate on body and negative pole cover plate；
Described housing is 1.1～1.5 times that its internal diameter of outer layer aluminum hull is internal layer its internal diameter of aluminum hull of double-decker, and described
It is filled with the solid filler with sublimation characteristics of 0.2～0.8 times of cavity volume between outer layer aluminum hull and described internal layer aluminum hull.
Further, described solid filler is made up of iodine.
Further, described positive pole cover plate include the first plate body, for connect described first plate body and described housing the
One bronze medal pressing plate, it is connected to first connection sheet being made up of aluminium material of described first bronze medal pressing plate and is connected to the first connection sheet
The first current collecting plates.
Further, described first connection sheet is connected to described first bronze medal pressure by the first connector being made up of rivet
Plate.
Further, described first current collecting plates are connected to described first connection sheet by the first temperature switch.
Further, described first plate body is provided with the first explosion-proof valve, described first explosion-proof valve occupies described first plate
It is additionally provided with liquid injection hole on the 40%～75% of its area of body, and described first plate body.
Further, described negative pole cover plate include the second plate body, for connect described second plate body and described housing the
Two bronze medal pressing plates, it is connected to second connection sheet being made up of copper material of described second bronze medal pressing plate and is connected to the second connection sheet
The second current collecting plates.
Further, described second connection sheet is connected to described second bronze medal pressure by the second connector being made up of rivet
Plate.
Further, described second current collecting plates are connected to described second connection sheet by second temperature switch.
Further, described second plate body is provided with the second explosion-proof valve, described second explosion-proof valve occupies described second plate
The 40%～75% of its area of body.
A kind of high security of the present invention, the having the beneficial effect that of high performance cylindrical lithium ion electrokinetic cell aluminum hull：
1) by housing is arranged to double-decker, and filling has the fixing filling of sublimation characteristics between double-decker
Thing, it can effectively prevent the impact to internal temperature of battery for the change of ambient temperature；This structure has and overcharges protection simultaneously
Characteristic, can effectively slow down the rate of heat release of battery, reduce the probability on fire from explosion of battery.
2) pass through to arrange the first explosion-proof valve, it can arrange its size according to battery scale, when cell internal pressure is larger
When, good pressure release can be carried out；
3) pass through to arrange the first temperature switch, when battery temperature is too high, it cuts off first connection sheet and the first current collecting plates
Between connection, and then disconnect the connection of battery and external circuit it is ensured that the use safety of battery, it can prevent the mistake of battery to be filled with
And it is overheated；
4) pass through to arrange the second explosion-proof valve, it can arrange its size according to battery scale, when cell internal pressure is larger
When, good pressure release can be carried out；
5) pass through to arrange second temperature switch, when battery temperature is too high, it cuts off second connection sheet and the second current collecting plates
Between connection, and then disconnect the connection of battery and external circuit it is ensured that the use safety of battery, it can prevent the mistake of battery to be filled with
And it is overheated.
Brief description
Fig. 1 is the structural representation of the housing of embodiments of the invention.
Fig. 2 is one of positive cover plate structure schematic diagram of embodiments of the invention.
Fig. 3 is the two of the positive cover plate structure schematic diagram of embodiments of the invention.
Fig. 4 is one of negative cover plate structure schematic diagram of the embodiment of the present invention.
Fig. 5 is the two of the negative cover plate structure schematic diagram of the embodiment of the present invention.
Specific embodiment
Embodiment：
The present embodiment shows a kind of high security, high performance cylindrical lithium ion electrokinetic cell aluminum hull；
It includes housing (in figure does not mark), (in figure is not for the positive pole cover plate being correspondingly arranged on housing (in figure does not mark)
Mark) and negative pole cover plate (in figure does not mark)；Positive pole cover plate (in figure does not mark) and negative pole cover plate (in figure does not mark) pass through to swash
The mode of photocoagulation is connected with housing.
Refer to Fig. 1, housing (in figure does not mark) is 1.1 times that its internal diameter of outer layer aluminum hull 2 is its internal diameter of internal layer aluminum hull 3
It is filled with the solid-filling with sublimation characteristics of 0.2 times of cavity volume between double-decker, and outer layer aluminum hull 2 and internal layer aluminum hull 3
Thing 1.
The present embodiment not ratio to its internal diameter of outer layer aluminum hull 2 and its internal diameter of internal layer aluminum hull 3, only lifts optimal value outer layer aluminum hull
2 its internal diameter are the use occasion of 1.1～1.5 times of its internal diameter of internal layer aluminum hull 3；
The present embodiment does not limit to the loading of solid filler 1 simultaneously, only lifts optimal value outer layer aluminum hull 2 and internal layer
It is filled with the use occasion of the solid filler 1 with sublimation characteristics of 0.2～0.8 times of cavity volume between aluminum hull 3.
Solid filler 1 is made up of iodine.
Wherein：
In the present embodiment, housing (in figure does not mark) is double-decker, and it can prevent the change of ambient temperature to battery
The impact of internal temperature：
1), when ambient temperature is too low, outer layer aluminum hull 2 plays insulation effect；
2) when ambient temperature is too high, solid filler 1 distils, and absorbs temperature, reduces the temperature of inside battery.
Meanwhile, in the present embodiment housing (in figure does not mark) be double-decker its also there is following safeguard function：
1) when battery runs into situations such as such as acupuncture, short circuit, extruding, cause internal layer aluminum hull 3 damaged, produce amount of heat
During situation, the fixing implant 1 being made up of iodine in the present embodiment distils, and absorbs heat, reduces the rate of heat production of battery, it is to avoid send out
Raw blast；
2) during battery use, there is between outer layer aluminum hull 2 and internal layer aluminum hull 3 fixation being made up of iodine in the present embodiment
The steam of implant 1, can separate fuel gas and the directly contact of oxygen in battery, reduce probability on fire；
3) during battery use, when the fixing implant 1 that is made up of iodine distils, produce purpuriferous gas in the present embodiment
Body, has the effect of warning.
Refer to Fig. 2, Fig. 3, positive pole cover plate (in figure does not mark) includes the first plate body (in figure does not mark), is used for drawing electricity
First bronze medal pressing plate 5 of pond positive terminal, the first connection sheet 10 being made up of aluminium material being connected to the first bronze medal pressing plate 5 and connection
The first current collecting plates 8 in the first connection sheet 10.
First connection sheet 10 is connected to the first bronze medal pressing plate 5 by the first connector 7 being made up of rivet.
First current collecting plates 8 are connected to the first connection sheet 10 by the first temperature switch 6.
First explosion-proof valve 4 is provided with the first plate body (in figure does not mark), the first explosion-proof valve 4 occupies the first plate body (in figure
Do not mark) its area 40%, and be additionally provided with liquid injection hole 9 on the first plate body (in figure does not mark).
Wherein：
First current collecting plates 8 are connected to the first connection sheet 10 by the first temperature switch 6, and the first connection sheet 10 passes through first even
Fitting 7 is connected to the first bronze medal pressing plate 5 thus drawing anode end；
First explosion-proof valve 4 can arrange its size according to battery scale, when cell internal pressure is larger, can carry out good
Pressure release；
The setting of the first temperature switch 6, when battery temperature is too high, it cuts off first connection sheet 10 and the first current collecting plates 8
Between connection, and then disconnect the connection of battery and external circuit it is ensured that the use safety of battery, its can prevent the overshoot of battery with
And it is overheated.
Refer to Fig. 4, Fig. 5, negative pole cover plate (in figure does not mark) includes the second plate body (in figure does not mark), is used for drawing electricity
Second bronze medal pressing plate 16 of pond negative pole end, the second connection sheet 12 being made up of copper material being connected to the second bronze medal pressing plate 16, Yi Jilian
It is connected to the second current collecting plates 15 of the second connection sheet 12.
Second connection sheet 12 is connected to the second bronze medal pressing plate 16 by the second connector 13 being made up of rivet.
Second current collecting plates 15 are connected to the second connection sheet 12 by second temperature switch 14.
Second explosion-proof valve 11 is provided with the second plate body (in figure does not mark), the second explosion-proof valve 11 occupies its face of the second plate body
Long-pending 75%.
Wherein：
Second current collecting plates 15 are connected to the second connection sheet 12 by second temperature switch 14, and the second connection sheet 12 passes through second
Connector 13 is connected to the second bronze medal pressing plate 16 thus drawing battery cathode end；
Second explosion-proof valve 11 can arrange its size according to battery scale, when cell internal pressure is larger, can carry out good
Good pressure release；
The setting of second temperature switch 14, when battery temperature is too high, it cuts off second connection sheet 12 and the second current collecting plates
Connection between 15, and then disconnect battery with the connection of external circuit it is ensured that the use safety of battery, it can prevent the overshoot of battery
And it is overheated.
A kind of high security of the present embodiment, the having the beneficial effect that of high performance cylindrical lithium ion electrokinetic cell aluminum hull：
1) by housing is arranged to double-decker, and filling has the fixing implant of sublimation characteristics between double-decker
1, it can effectively prevent the impact to internal temperature of battery for the change of ambient temperature；This structure has that to overcharge protection special simultaneously
Property, can effectively slow down the rate of heat release of battery, reduce the probability on fire from explosion of battery.
2) pass through to arrange the first explosion-proof valve 4, it can arrange its size according to battery scale, when cell internal pressure is larger
When, good pressure release can be carried out；
3) pass through to arrange the first temperature switch 6, when battery temperature is too high, it cuts off first connection sheet 10 and the first afflux
Connection between disk 8, and then disconnect battery with the connection of external circuit it is ensured that the use safety of battery, it can prevent the mistake of battery
It is filled with and overheated；
4) pass through to arrange the second explosion-proof valve 11, it can arrange its size according to battery scale, when cell internal pressure is larger
When, good pressure release can be carried out；
5) pass through to arrange second temperature switch 14, when battery temperature is too high, its cut-out second connection sheet 12 and second collects
Connection between flow table 15, and then disconnect battery with the connection of external circuit it is ensured that the use safety of battery, it can prevent battery
Overcharge and overheated.
All technical sides that the present invention still has numerous embodiments, all employing equivalents or equivalent transformation and formed
Case, is within the scope of the present invention.
Claims (10)
1. a kind of high security, high performance cylindrical lithium ion electrokinetic cell aluminum hull it is characterised in that：Set including housing, correspondence
It is placed in the positive pole cover plate on described housing and negative pole cover plate；
Described housing is 1.1～1.5 times that its internal diameter of outer layer aluminum hull is internal layer its internal diameter of aluminum hull of double-decker, and described outer layer
It is filled with the solid filler with sublimation characteristics of 0.2～0.8 times of cavity volume between aluminum hull and described internal layer aluminum hull.
2. high security according to claim 1, high performance cylindrical lithium ion electrokinetic cell aluminum hull it is characterised in that：
Described solid filler is made up of iodine.
3. high security according to claim 2, high performance cylindrical lithium ion electrokinetic cell aluminum hull it is characterised in that：
Described positive pole cover plate includes the first plate body, for drawing the first bronze medal pressing plate at anode end, being connected to described first bronze medal pressing plate
The first connection sheet being made up of aluminium material and the first current collecting plates being connected to the first connection sheet.
4. high security according to claim 3, high performance cylindrical lithium ion electrokinetic cell aluminum hull it is characterised in that：
Described first connection sheet is connected to described first bronze medal pressing plate by the first connector being made up of rivet.
5. high security according to claim 4, high performance cylindrical lithium ion electrokinetic cell aluminum hull it is characterised in that：
Described first current collecting plates are connected to described first connection sheet by the first temperature switch.
6. the high security according to claim 1-5 any one, high performance cylindrical lithium ion electrokinetic cell aluminum hull, its
It is characterised by：First explosion-proof valve is provided with described first plate body, described first explosion-proof valve occupies described its area of first plate body
40%～75%, and be additionally provided with liquid injection hole on described first plate body.
7. high security according to claim 6, high performance cylindrical lithium ion electrokinetic cell aluminum hull it is characterised in that：
Described negative pole cover plate includes the second plate body, for drawing the second bronze medal pressing plate at battery cathode end, being connected to described second bronze medal pressing plate
The second connection sheet being made up of copper material and the second current collecting plates being connected to the second connection sheet.
8. high security according to claim 7, high performance cylindrical lithium ion electrokinetic cell aluminum hull it is characterised in that：
Described second connection sheet is connected to described second bronze medal pressing plate by the second connector being made up of rivet.
9. high security according to claim 8, high performance cylindrical lithium ion electrokinetic cell aluminum hull it is characterised in that：
Described second current collecting plates are connected to described second connection sheet by second temperature switch.
10. the high security according to claim 7-9 any one, high performance cylindrical lithium ion electrokinetic cell aluminum hull,
It is characterized in that：Second explosion-proof valve is provided with described second plate body, described second explosion-proof valve occupies described its face of second plate body
Long-pending 40%～75%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817421.2A CN106410079A (en) | 2016-09-12 | 2016-09-12 | Cylindrical lithium-ion power battery aluminum shell with high safety and high performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817421.2A CN106410079A (en) | 2016-09-12 | 2016-09-12 | Cylindrical lithium-ion power battery aluminum shell with high safety and high performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106410079A true CN106410079A (en) | 2017-02-15 |
Family
ID=57999426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610817421.2A Pending CN106410079A (en) | 2016-09-12 | 2016-09-12 | Cylindrical lithium-ion power battery aluminum shell with high safety and high performance |
Country Status (1)
| Country | Link |
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| CN (1) | CN106410079A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281578A (en) * | 2017-12-07 | 2018-07-13 | 国轩新能源（苏州）有限公司 | Cylindrical battery vibration proof type electric lids |
| WO2024066133A1 (en) * | 2022-09-28 | 2024-04-04 | 厦门海辰储能科技股份有限公司 | Cell battery, battery pack, and electrical device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01115065A (en) * | 1987-10-28 | 1989-05-08 | Matsushita Electric Ind Co Ltd | Thermal battery |
| CN201378601Y (en) * | 2009-03-20 | 2010-01-06 | 徐敖奎 | Temperature control shell of lithium battery pack |
| CN104241558A (en) * | 2014-09-22 | 2014-12-24 | 益阳科力远电池有限责任公司 | Cover-cap for cylindrical battery and cylindrical battery |
| CN105742527A (en) * | 2016-03-18 | 2016-07-06 | 国轩新能源（苏州）有限公司 | Cylindrical lithium ion power battery with high energy ratio and long service lifetime |
-
2016
- 2016-09-12 CN CN201610817421.2A patent/CN106410079A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01115065A (en) * | 1987-10-28 | 1989-05-08 | Matsushita Electric Ind Co Ltd | Thermal battery |
| CN201378601Y (en) * | 2009-03-20 | 2010-01-06 | 徐敖奎 | Temperature control shell of lithium battery pack |
| CN104241558A (en) * | 2014-09-22 | 2014-12-24 | 益阳科力远电池有限责任公司 | Cover-cap for cylindrical battery and cylindrical battery |
| CN105742527A (en) * | 2016-03-18 | 2016-07-06 | 国轩新能源（苏州）有限公司 | Cylindrical lithium ion power battery with high energy ratio and long service lifetime |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281578A (en) * | 2017-12-07 | 2018-07-13 | 国轩新能源（苏州）有限公司 | Cylindrical battery vibration proof type electric lids |
| CN108281578B (en) * | 2017-12-07 | 2021-06-01 | 国轩新能源（苏州）有限公司 | Cylindrical battery vibration-proof electrode cover plate |
| WO2024066133A1 (en) * | 2022-09-28 | 2024-04-04 | 厦门海辰储能科技股份有限公司 | Cell battery, battery pack, and electrical device |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
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