CN108183255A - A kind of cooling centrepin of secondary cell - Google Patents
A kind of cooling centrepin of secondary cell Download PDFInfo
- Publication number
- CN108183255A CN108183255A CN201711447608.9A CN201711447608A CN108183255A CN 108183255 A CN108183255 A CN 108183255A CN 201711447608 A CN201711447608 A CN 201711447608A CN 108183255 A CN108183255 A CN 108183255A
- Authority
- CN
- China
- Prior art keywords
- centrepin
- secondary cell
- cooling
- seal cavity
- sealing
- 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
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
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of cooling centrepins of secondary cell, and the cylinder (10) of hollow hole is run through including band, it is characterised in that：Cylinder (10) hollow hole sealing is fixed there are two to the sealing (11,12) at interval and the hollow hole in cylinder (10) being made to be formed with seal cavity (13) by two sealings (11,12) along hollow hole hole, and the energy storage materials of phase change (14) with cooling effect is filled in the seal cavity (13).It has the following advantages that：The ability of latent heat is largely absorbed in phase transformation by energy storage materials of phase change, core is prevented to deform, regulates and controls battery core internal temperature, effectively reduces the temperature of secondary cell, extend the service life of secondary cell；It solves the problems, such as that the inner space of centrepin is left unused, reduces electrolyte usage amount.
Description
Technical field
The present invention relates to a kind of field of batteries more particularly to a kind of cooling centrepins of secondary cell.
Background technology
Temperature control is an important technology index of secondary cell, and for secondary cell in charge and discharge process, temperature is excessively high
Words influence whether the security performance of battery.With the development of lithium power technology, the safety index of lithium ion battery is required constantly to carry
It is high.Therefore reducing lithium ion battery temperature becomes an important directions of field of batteries research and development.
In the prior art, cylindrical secondary battery battery core include core, housing, block and hollow centre pin, centrepin its
Main function is that core is prevented to be deformed in charge and discharge process, plays the function of firm core.Existing centrepin there are with
Lower problem：(1) inside of centrepin is in blank state, and inside battery space is limited, and battery volume is caused to increase；(2) both ends
Do not have Packed centrepin in fluid injection, need to inject a certain amount of electrolyte, also increase electrolyte cost.
Invention content
The present invention provides a kind of cooling centrepins of secondary cell, and which overcome the coolings of secondary cell in background technology
Deficiency present in centrepin.
The present invention solves one of used technical solution of its technical problem：
A kind of cooling centrepin of secondary cell runs through the cylinder (10) of hollow hole, cylinder (10) hollow hole including band
Seal that fixed there are two along hollow hole hole to the sealing (11,12) at interval and make cylinder (10) by two sealings (11,12)
Interior hollow hole is formed with seal cavity (13), and energy storage materials of phase change (14) is filled in the seal cavity (13).
Among one embodiment：The energy storage materials of phase change (14) including solid paraffin, polyethylene glycol, octadecane-palmitic acid and
At least one of lauryl alcohol-stearic acid.
Among one embodiment：The polyethylene glycol selects at least one of PEG-1000 and PEG-1500.
Among one embodiment：The volume for the energy storage materials of phase change (14) filled in the seal cavity (13) is less than seal cavity
(13) volume.
Among one embodiment：The volume for the energy storage materials of phase change (14) filled in the seal cavity (13) accounts for seal cavity
(13) 30%-90% of volume.
Among one embodiment：Cylinder (10) Single port realizes sealing, cylinder (10) another port using pouring type
It is sealed by sealing element fixation, the sealing and the sealing element which forms form above-mentioned sealing (11,12).
Among one embodiment：The sealing element uses one in polyethylene, polypropylene or polyethylene terephthalate
Kind is made.
The present invention solve its technical problem used technical solution second is that：
The secondary cell of cooling centrepin including a kind of secondary cell, further includes box hat (20) and core
(30), which is enclosed in outside cooling centrepin, and the core (30) of encirclement cooling centrepin is seated in box hat (20).
Among one embodiment：Block (40) is further included, which has opening up groove body, in encirclement cooling
The core (30) of heart pin is seated in the groove body of box hat (20), and the block (40) sealing fixed cover is connected on the groove body of box hat (20)
Notch.
Compared with background technology, it has the following advantages that the technical program：
It cools down and seal cavity is formed in centrepin, the energy storage materials of phase change with cooling effect is filled in seal cavity,
Therefore it has the following advantages that：First, centrepin can play the function of firm core；Second, by energy storage materials of phase change in phase transformation
Shi great Liang absorbs the ability of latent heat, on the one hand, core is prevented to deform, on the other hand, regulates and controls battery core internal temperature, effectively reduces by two
The temperature of primary cell extends the service life of secondary cell；Third, solving the problems, such as that the inner space of centrepin is left unused, electricity is reduced
Solve liquid usage amount.
The volume for the energy storage materials of phase change filled in seal cavity is less than in the volume or, seal cavity of seal cavity and fills out
The volume of the energy storage materials of phase change filled accounts for the 30%-90% of the volume of seal cavity so that gap is formed in seal cavity, is caused
Enable the heat of the energy storage materials of phase change absorption maximum of filling, in the case of the ability maximum for ensureing regulating and controlling temperature, adapt to
Volume change in energy storage materials of phase change phase transition process.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the diagrammatic cross-section of secondary cell battery core
Fig. 2 is the schematic cross-section for cooling down centrepin.
Specific embodiment
Fig. 1 and Fig. 2 are please referred to, secondary cell includes box hat 20, core 30, cooling centrepin 100 and block 40.The core
30 are enclosed in outside cooling centrepin 100, which has opening up groove body, which cools down the core of centrepin 100
30 are seated in the groove body of box hat 20, and the block 40 sealing fixed cover is connected on the notch of the groove body of box hat 20.
The cooling centrepin 100 includes the cylinder 10 that band runs through hollow hole, such as cylindrical sleeves structure, 10 hollow hole of cylinder
Two-port sealing is installed with sealing 11,12 and the hollow hole in cylinder 10 is made to be formed with seal cavity by two-port sealing
13, the seal cavity 13 is interior to be filled with the energy storage materials of phase change 14 with cooling effect.The energy storage materials of phase change 14 includes solid-state
One kind in paraffin, PEG-1000 and PEG-1500, octadecane-palmitic acid, lauryl alcohol-stearic acid.Moreover, the seal cavity 13
The volume of the energy storage materials of phase change 14 of interior filling is less than the phase transformation filled in the volume of seal cavity 13, such as the seal cavity 13
The volume of energy-accumulation material 14 accounts for the 30%-90% of the volume of seal cavity 13 so that 14 filler of energy storage materials of phase change and sealing
Internal clearance 15 is formed between cavity.
Among the present embodiment：10 lower port of cylinder realizes sealing, the sealing which forms using pouring type
Above-mentioned sealing 11 is formed, which is sealed by sealing element fixation, which forms above-mentioned sealing
Portion 12.One kind that the sealing element can be used in polyethylene, polypropylene or polyethylene terephthalate is made.
The ability of latent heat is largely absorbed in phase transformation by energy storage materials of phase change, regulates and controls battery core internal temperature, effectively reduces
The temperature of secondary cell such as makes secondary cell temperature in charge and discharge process be maintained at 20~30 DEG C or so, secondary so as to improve
Cycle performance, high rate performance and the safety of battery, such as secondary cell cycle-index is caused to improve 10%, it is transferred in 3C conditions
When electric, battery core surface temperature drops to 30 DEG C by 50 DEG C.Specific data such as the following examples are discussed in detail.
Embodiment one
The energy storage materials of phase change 14 of the cooling centrepin of embodiment one selects solid paraffin, and loading holds for seal cavity 13
The 90% of amount, in the seal cavity 13 there are 10% internal clearance.The centrepin is noted to be formed in cylinder upper using steel and be sealed
Mouthful, cool down the sealing element material selection polymeric seal at the top of centrepin.
The cooling centrepin of embodiment one is assembled into secondary cell.When being discharged using 3C, secondary cell surface temperature by
50 DEG C drop to 30 DEG C, and cycle life improves 10%, and electrolyte usage amount reduces cooling centrepin than the usage amount of the prior art
Volume (volume of seal cavity) needed for injection rate.
Embodiment two
It with embodiment one the difference lies in：The loading of the energy storage materials of phase change 14 of the cooling centrepin of embodiment two
Be the 40% of 13 capacity of seal cavity, in the seal cavity 13 there are 60% internal clearance.Cool down the close of the top of centrepin
Sealing material selection polypropylene seal.
The cooling centrepin of embodiment two is assembled into secondary cell.When being discharged using 3C, secondary cell surface temperature by
50 DEG C drop to 43 DEG C, and cycle life improves 2%, and electrolyte usage amount reduces cooling centrepin than the usage amount of the prior art
Injection rate needed for volume (volume of seal cavity).
Embodiment three
It with embodiment one the difference lies in：The energy storage materials of phase change 14 of the cooling centrepin of embodiment three is PEG-
1000, cool down the sealing element material selection polyethylene terephthalate sealing at the top of centrepin.
The cooling centrepin of embodiment three is assembled into secondary cell.When being discharged using 3C, secondary cell surface temperature by
50 DEG C drop to 36 DEG C, and cycle life improves 7%, and electrolyte usage amount reduces cooling centrepin than the usage amount of the prior art
Injection rate needed for volume (volume of seal cavity).
Example IV
It with embodiment one the difference lies in：The energy storage materials of phase change 14 of the cooling centrepin of embodiment three is PEG-
1500。
The cooling centrepin of embodiment three is assembled into secondary cell.When being discharged using 3C, secondary cell surface temperature by
50 DEG C drop to 38 DEG C, and cycle life improves 4%, and electrolyte usage amount reduces cooling centrepin than the usage amount of the prior art
Injection rate needed for volume (volume of seal cavity).
The above, only present pre-ferred embodiments, therefore the range implemented of the present invention cannot be limited according to this, i.e., according to
The equivalent changes and modifications that the scope of the claims of the present invention and description are made all should still belong in the range of the present invention covers.
Claims (9)
1. a kind of cooling centrepin of secondary cell runs through the cylinder (10) of hollow hole including band, it is characterised in that：The cylinder
(10) fixed there are two along hollow hole hole to the sealing (11,12) at interval and pass through two sealings (11,12) for hollow hole sealing
The hollow hole in cylinder (10) is made to be formed with seal cavity (13), energy storage materials of phase change is filled in the seal cavity (13)
(14)。
2. a kind of cooling centrepin of secondary cell according to claim 1, it is characterised in that：The energy storage materials of phase change
(14) including at least one of solid paraffin, polyethylene glycol, octadecane-palmitic acid and lauryl alcohol-stearic acid.
3. a kind of cooling centrepin of secondary cell according to claim 2, it is characterised in that：The polyethylene glycol is selected
At least one of PEG-1000 and PEG-1500.
4. a kind of cooling centrepin of secondary cell according to claim 1, it is characterised in that：In the seal cavity (13)
The volume of the energy storage materials of phase change (14) of filling is less than the volume of seal cavity (13).
5. a kind of cooling centrepin of secondary cell according to claim 4, it is characterised in that：In the seal cavity (13)
The volume of the energy storage materials of phase change (14) of filling accounts for the 30%-90% of the volume of seal cavity (13).
6. a kind of cooling centrepin of secondary cell according to claim 1, it is characterised in that：Cylinder (10) Single port
It is realized and sealed using pouring type, which is sealed by sealing element fixation, the envelope which forms
Mouth and the sealing element form above-mentioned sealing (11,12).
7. a kind of cooling centrepin of secondary cell according to claim 6, it is characterised in that：The sealing element uses poly- second
One kind in alkene, polypropylene or polyethylene terephthalate is made.
8. the secondary cell of the cooling centrepin including a kind of secondary cell any in claim 1 to 7, feature exist
In：Box hat (20) and core (30) are further included, which is enclosed in outside cooling centrepin, which cools down the volume of centrepin
Core (30) is seated in box hat (20).
9. a kind of secondary cell according to claim 8, it is characterised in that：Block (40) is further included, the box hat (20) tool
There is opening up groove body, the core (30) of encirclement cooling centrepin is seated in the groove body of box hat (20), the block (40)
Sealing fixed cover is connected on the notch of the groove body of box hat (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711447608.9A CN108183255A (en) | 2017-12-27 | 2017-12-27 | A kind of cooling centrepin of secondary cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711447608.9A CN108183255A (en) | 2017-12-27 | 2017-12-27 | A kind of cooling centrepin of secondary cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108183255A true CN108183255A (en) | 2018-06-19 |
Family
ID=62547966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711447608.9A Pending CN108183255A (en) | 2017-12-27 | 2017-12-27 | A kind of cooling centrepin of secondary cell |
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| Country | Link |
|---|---|
| CN (1) | CN108183255A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11329332B2 (en) | 2020-03-06 | 2022-05-10 | International Business Machines Corporation | Battery structure with internal thermal control |
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| CN101546850A (en) * | 2008-03-25 | 2009-09-30 | 三星Sdi株式会社 | Center pin for secondary battery and secondary battery having the same |
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| CN201397869Y (en) * | 2009-04-13 | 2010-02-03 | 恒正科技（苏州）有限公司 | Battery with temperature equilibrium and heat transfer structure |
| CN104681761A (en) * | 2015-01-30 | 2015-06-03 | 中天储能科技有限公司 | Lithium ion battery with long cycle life |
| CN204793117U (en) * | 2015-05-20 | 2015-11-18 | 朱忠学 | Security cylinder battery |
| US20160322670A1 (en) * | 2013-12-20 | 2016-11-03 | Fiamm Energy Storage Solutions S.P.A. | High-efficiency, high-temperature, sodium-based electrochemical cell |
| CN106684496A (en) * | 2016-12-29 | 2017-05-17 | 中国电子科技集团公司第十八研究所 | Improve battery security's arbor |
| CN106921002A (en) * | 2015-12-25 | 2017-07-04 | 南京航空航天大学 | A kind of cylinder type lithium battery with heat of transformation pooling feature |
| CN206353549U (en) * | 2017-01-17 | 2017-07-25 | 华霆（合肥）动力技术有限公司 | A kind of battery core set and battery core device |
-
2017
- 2017-12-27 CN CN201711447608.9A patent/CN108183255A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101529640A (en) * | 2006-10-23 | 2009-09-09 | 株式会社Lg化学 | Electrochemical device ensuring a good safety |
| CN101546850A (en) * | 2008-03-25 | 2009-09-30 | 三星Sdi株式会社 | Center pin for secondary battery and secondary battery having the same |
| CN201397869Y (en) * | 2009-04-13 | 2010-02-03 | 恒正科技（苏州）有限公司 | Battery with temperature equilibrium and heat transfer structure |
| CN101546843A (en) * | 2009-04-30 | 2009-09-30 | 广东工业大学 | Power battery device with phase-change material cooling system |
| US20160322670A1 (en) * | 2013-12-20 | 2016-11-03 | Fiamm Energy Storage Solutions S.P.A. | High-efficiency, high-temperature, sodium-based electrochemical cell |
| CN104681761A (en) * | 2015-01-30 | 2015-06-03 | 中天储能科技有限公司 | Lithium ion battery with long cycle life |
| CN204793117U (en) * | 2015-05-20 | 2015-11-18 | 朱忠学 | Security cylinder battery |
| CN106921002A (en) * | 2015-12-25 | 2017-07-04 | 南京航空航天大学 | A kind of cylinder type lithium battery with heat of transformation pooling feature |
| CN106684496A (en) * | 2016-12-29 | 2017-05-17 | 中国电子科技集团公司第十八研究所 | Improve battery security's arbor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11329332B2 (en) | 2020-03-06 | 2022-05-10 | International Business Machines Corporation | Battery structure with internal thermal control |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180619 |
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| RJ01 | Rejection of invention patent application after publication |