CN109599514A - A kind of uniform temperature type lithium battery - Google Patents
A kind of uniform temperature type lithium battery Download PDFInfo
- Publication number
- CN109599514A CN109599514A CN201811221431.5A CN201811221431A CN109599514A CN 109599514 A CN109599514 A CN 109599514A CN 201811221431 A CN201811221431 A CN 201811221431A CN 109599514 A CN109599514 A CN 109599514A
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- Prior art keywords
- partition
- temperature
- lithium battery
- battery
- accommodating chamber
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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
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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
- 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
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
-
- 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
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6572—Peltier elements or thermoelectric devices
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of uniform temperature type lithium batteries, including shell, partition and upper cover, partition is installed on enclosure interior, partition is to be made from a material that be thermally conductive with shell, partition is multiple and is from left to right successively intervally arranged, appoint and forms the battery cavities for being placed with single battery monomer between two adjacent partitions, each battery inner cavity surface is covered with heat-conducting layer, the profiling chamber with lithium battery form fit is formed inside heat-conducting layer, each diaphragm internal is equipped with the accommodating chamber of opening upwards, solid-liquid phase change energy-accumulation material is filled in each accommodating chamber, upper cover is packaged in shell upper end, upper cover lower surface is equipped with the seal convexity for being sealed in accommodating chamber upper end；The present invention is used for thermally conductive partition by setting inside housings, and the temperature of enclosure interior is transmitted uniformly；It is absorbed by the phase transition process of energy storage materials of phase change or discharges a large amount of latent heat, the temperature of single battery monomer can be automatically adjusted, reduce the temperature difference between each battery cell.
Description
Technical field
The invention belongs to technical field of lithium batteries, are specifically related to a kind of uniform temperature type lithium battery.
Background technique
Lithium battery is with voltage is high, light-weight, energy density is high, service life cycle is long, self discharge is low and memoryless effect
The characteristics of answering, has captured rapidly the overwhelming majority in batteries of electric automobile market, and lithium battery can generate biggish in use
Heat radiates improper the problem of will cause battery life decline or even burning, and brings to the use of lithium battery greatly safe hidden
Suffer from；Currently, lithium battery device is mainly radiated by the way of Forced Air Convection heat transfer, due to the thermal coefficient of air
Low, the defects of thermal capacitance is small, cause heat transfer coefficient small, radiating efficiency is low, and flowing of the air in cell apparatus unevenly will
Influence the temperature consistency of cell apparatus.
Summary of the invention
In view of this, being used for the purpose of the present invention is to provide a kind of uniform temperature type lithium battery by being arranged inside housings
Thermally conductive partition enables the temperature of enclosure interior to transmit uniformly；Also, absorbed by the phase transition process of energy storage materials of phase change or
A large amount of latent heat is discharged, the temperature of single battery monomer can be automatically adjusted, reduces the temperature difference between each battery cell.
In order to achieve the above object, a kind of uniform temperature type lithium battery of the present invention, including shell, partition and upper cover, partition installation
In enclosure interior, partition is to be made from a material that be thermally conductive with shell, and partition is multiple and is from left to right successively intervally arranged, Ren Xiang
The battery cavities for being placed with single battery monomer are formed between two adjacent partitions, each battery inner cavity surface is covered with thermally conductive
Layer, heat-conducting layer inside form the profiling chamber with lithium battery form fit, and each diaphragm internal is equipped with the accommodating chamber of opening upwards, often
Solid-liquid phase change energy-accumulation material is filled in a accommodating chamber, upper cover is packaged in shell upper end, and upper cover lower surface is equipped with and is sealed in receiving
The seal convexity of chamber upper end.
Further, the solid-liquid phase change energy-accumulation material is FTC self-temperature-adjusting phase change energy-accumulation material.
It further, further include semiconductor chilling plate, temperature sensor and PID controller, the housing bottom lower surface is set
There is the first groove, the semiconductor chilling plate for promptly radiating is installed in the first groove, housing bottom upper surface is equipped with second
Groove is equipped with the temperature sensor for temperature sensor in the second groove, the cold end that semiconductor chilling plate has and first recessed
Rooved face contact, semiconductor chilling plate and temperature sensor are electrically connected with the PID controller for being located at hull outside respectively.
Further, the seal convexity is embedded in accommodating chamber upper end, and seal convexity surface is equipped with the rubber layer for sealing.
Further, the heat-conducting layer is thermally conductive gel coating.
The beneficial effects of the present invention are:
1. the temperature consistency that a kind of uniform temperature type lithium battery of the present invention can be improved enclosure interior；The temperature of each battery cell by with
The partition of the neighbouring battery cell is transmitted, so that the uniformity of temperature profile of enclosure interior；Also, pass through phase-changing energy-storing
The phase transition process of material absorbs or discharges a large amount of latent heat, can automatically adjust the temperature of single battery monomer, reduce each battery
Temperature difference between monomer；In addition, being filled in each accommodating chamber since each diaphragm internal is equipped with the accommodating chamber of opening upwards
Solid-liquid phase change energy-accumulation material, so that battery cell and solid-liquid phase change energy-accumulation material are as close to that is, heat transfer distance is small, energy
It is enough to carry out temperature adjusting in time；On this basis, accommodating chamber upper end is sealed by seal convexity, avoids solid-liquid phase change
Energy-accumulation material is converted to the leakage problem generated when liquid.
2. the service life that a kind of uniform temperature type lithium battery of the present invention is conducive to extend each battery cell；FTC self-temperature-adjusting phase change
Energy-accumulation material produces saturated acid using new processes such as the critical extraction of plant, the distillation of vacuum refrigeration analysis layer, saponification, is become by chemistry
Change, is grafted in macromolecular or filling takes small molecule, generate a kind of novel substance, which has larger potential heat value, to approach room temperature
(18 DEG C, 24 DEG C) of temperature be transformation temperature, avoid the charge and discharge electro-temperature of each battery cell excessively high or too low, be conducive to extend each
The service life of battery cell；Also, FTC self-temperature-adjusting phase change energy-accumulation material is environmentally protective, corrosion-free, pollution-free, free from extraneous odour, right
Environment and human body are harmless.
3. a kind of uniform temperature type lithium battery of the present invention is conducive to further increase whole safety；When heat occurs in battery cell
When out of control, temperature is excessively high and climbs comparatively fast, so that the temperature of enclosure interior has sharply raised trend, at this point, in shell
The temperature change in portion sends PID controller to through temperature sensor, is compared with the temperature of setting, and resulting deviation of signal is logical
PID mode adjustment processing is crossed, command signal is issued by PID controller, control semiconductor chilling plate carries out fast-refrigerating, so that shell
The temperature in internal portion reduces rapidly, so as to avoid the chain reaction generated due to lithium battery thermal runaway.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is a kind of front section view of uniform temperature type lithium battery of the present invention；
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at A；
Fig. 3 is the top view of partition described in a kind of uniform temperature type lithium battery of the present invention.
Appended drawing reference: 1- shell；2- partition；3- upper cover；4- battery cell；5- heat-conducting layer；6- solid-liquid phase change accumulation of energy material
Material；7- semiconductor chilling plate；8- temperature sensor；9-PID controller；21- accommodating chamber；31- seal convexity.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
As shown in Figure 1 to Figure 3；A kind of uniform temperature type lithium battery of the present invention, including shell 1, partition 2 and upper cover 3；Partition 2 is pacified
Inside shell 1, partition 2 is to be made from a material that be thermally conductive with shell 1, and here, Heat Conduction Material uses metal material；Partition 2
Be it is multiple and be from left to right successively intervally arranged, form one between two partitions 2 of Ren Xianglin and be placed with single battery monomer 4
Battery cavities；Each battery inner cavity surface is covered with heat-conducting layer 5, and the profiling with lithium battery form fit is formed inside heat-conducting layer 5
Thermally conductive gel coating can be used in chamber, here, heat-conducting layer 5；The accommodating chamber 21 of opening upwards, each receiving are equipped with inside each partition 2
Solid-liquid phase change energy-accumulation material 6 is filled in chamber 21, upper cover 3 is packaged in 1 upper end of shell, and 3 lower surface of upper cover is equipped with and is sealed in receiving
The seal convexity 31 of 21 upper end of chamber.
The temperature of each battery cell 4 with the partition 2 of the neighbouring battery cell 4 by being transmitted, so that inside shell 1
Uniformity of temperature profile；Also, it is absorbed by the phase transition process of energy storage materials of phase change or discharges a large amount of latent heat, can adjusted automatically
The temperature for saving single battery monomer 4, reduces the temperature difference between each battery cell 4.
In addition, energy storage materials of phase change includes solid-liquid phase change energy-accumulation material 6 and solid-solid phase-change energy-accumulation material, wherein for
For solid-solid phase-change energy-accumulation material, more than solid-solid phase-change temperature, when they become plastic crystals from crystalline solid, plasticity is brilliant
There is biggish vapour pressure, mutability is that gas escapes, if using solid-solid phase-change energy-accumulation material, it is necessary to consider that gas escapes when body
The problem of bring air pressure increases；And solid-liquid phase change energy-accumulation material 6 is only the mutual conversion between solid and liquid, no gas
Evolution problem, therefore, present embodiment use solid-liquid phase change energy-accumulation material 6.
Preferably, solid-liquid phase change energy-accumulation material 6 is FTC self-temperature-adjusting phase change energy-accumulation material.The substance has larger latent heat
Value, phase transition temperature point are (18 DEG C, 24 DEG C), and the charge and discharge electro-temperature that can be avoided each battery cell 4 is excessively high or too low, favorably
In the service life for extending each battery cell 4；Also, FTC self-temperature-adjusting phase change energy-accumulation material is environmentally protective, corrosion-free, pollution-free,
It is free from extraneous odour, harmless to environment and human body.
Preferably, present embodiment further includes semiconductor chilling plate 7, temperature sensor 8 and PID controller 9,1 bottom of shell
Lower surface is equipped with the first groove, is equipped with the semiconductor chilling plate 7 for promptly radiating in the first groove, on 1 bottom of shell
Surface is equipped with the second groove, and the temperature sensor 8 for temperature sensor is equipped in the second groove, and semiconductor chilling plate 7 has
Cold end contacted with the first groove surfaces, semiconductor chilling plate 7 and temperature sensor 8 for incuding 1 temperature of shell respectively with
PID controller 9 outside shell 1 is electrically connected.When thermal runaway occurs in percentage of batteries monomer 4, temperature is excessively high and climbs
Comparatively fast, so that the temperature inside shell 1 has sharply raised trend, at this point, the temperature change inside shell 1 is through temperature sensing
Device 8 sends PID controller 9 to, is compared with the temperature of setting, and resulting deviation of signal is handled by PID mode adjustment, by
PID controller 9 issues command signal, and control semiconductor chilling plate 7 carries out fast-refrigerating, so that the temperature inside shell 1 is rapid
It reduces, so as to avoid the generation due to lithium battery thermal runaway.It should be noted that present embodiment is by temperature change to lithium
Battery thermal runaway is judged in advance, and is quickly reacted, and the safety of present embodiment is effectively increased.
Preferably, seal convexity 31 is embedded in 21 upper end of accommodating chamber, and 31 surface of seal convexity is equipped with the rubber for sealing
Layer.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (5)
1. a kind of uniform temperature type lithium battery, it is characterised in that: including shell, partition and upper cover, partition is installed on enclosure interior, partition
Be to be made from a material that be thermally conductive with shell, partition be it is multiple and be from left to right successively intervally arranged, two partitions of Ren Xianglin it
Between form the battery cavities for being placed with single battery monomer, each battery inner cavity surface is covered with heat-conducting layer, inside heat-conducting layer
The profiling chamber with lithium battery form fit is formed, each diaphragm internal is equipped with the accommodating chamber of opening upwards, fills out in each accommodating chamber
Filled with solid-liquid phase change energy-accumulation material, upper cover is packaged in shell upper end, and upper cover lower surface is equipped with the sealing for being sealed in accommodating chamber upper end
Protrusion.
2. a kind of uniform temperature type lithium battery as described in claim 1, it is characterised in that: the solid-liquid phase change energy-accumulation material is FTC
Self-temperature-adjusting phase change energy-accumulation material.
3. a kind of uniform temperature type lithium battery as described in claim 1, it is characterised in that: further include semiconductor chilling plate, temperature biography
Sensor and PID controller, the housing bottom lower surface be equipped with the first groove, is equipped in the first groove for promptly radiating
Semiconductor chilling plate, housing bottom upper surface are equipped with the second groove, and the temperature biography for temperature sensor is equipped in the second groove
Sensor, the cold end that semiconductor chilling plate has are contacted with the first groove surfaces, semiconductor chilling plate and temperature sensor respectively with
PID controller positioned at hull outside is electrically connected.
4. a kind of uniform temperature type lithium battery as claimed in any one of claims 1 to 3, it is characterised in that: the seal convexity insertion
In accommodating chamber upper end, seal convexity surface is equipped with the rubber layer for sealing.
5. a kind of uniform temperature type lithium battery as claimed in any one of claims 1 to 3, it is characterised in that: the heat-conducting layer is thermally conductive
Gel coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221431.5A CN109599514A (en) | 2018-10-19 | 2018-10-19 | A kind of uniform temperature type lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221431.5A CN109599514A (en) | 2018-10-19 | 2018-10-19 | A kind of uniform temperature type lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109599514A true CN109599514A (en) | 2019-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811221431.5A Pending CN109599514A (en) | 2018-10-19 | 2018-10-19 | A kind of uniform temperature type lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109599514A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864314A (en) * | 2020-07-24 | 2020-10-30 | 苏州华骞时代新能源科技有限公司 | Lithium cell group temperature equalization mechanism |
| CN115498328A (en) * | 2022-11-07 | 2022-12-20 | 山东大学 | Semi-open type battery thermal management device coupled with battery surface |
| CN118281419A (en) * | 2024-05-31 | 2024-07-02 | 四川信息职业技术学院 | Power battery phase change material temperature control box and temperature control method |
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| CN107302114A (en) * | 2017-07-11 | 2017-10-27 | 浙江谷神能源科技股份有限公司 | Lithium battery with heat alert device |
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| CN207651633U (en) * | 2017-12-08 | 2018-07-24 | 南昌航空大学 | A kind of heat management coupled system of dynamic lithium battery group |
| CN207705268U (en) * | 2018-01-02 | 2018-08-07 | 重庆长安汽车股份有限公司 | A kind of Vehicular dynamic battery module |
-
2018
- 2018-10-19 CN CN201811221431.5A patent/CN109599514A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014235803A (en) * | 2013-05-31 | 2014-12-15 | 古河電池株式会社 | Storage battery system |
| CN105518928A (en) * | 2014-11-10 | 2016-04-20 | 深圳市大疆创新科技有限公司 | Battery, heat management apparatus thereof and uav having battery |
| CN107666025A (en) * | 2016-07-27 | 2018-02-06 | 四川省同华科技有限公司 | The heat management system of two temperature control |
| CN107302114A (en) * | 2017-07-11 | 2017-10-27 | 浙江谷神能源科技股份有限公司 | Lithium battery with heat alert device |
| CN207651633U (en) * | 2017-12-08 | 2018-07-24 | 南昌航空大学 | A kind of heat management coupled system of dynamic lithium battery group |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864314A (en) * | 2020-07-24 | 2020-10-30 | 苏州华骞时代新能源科技有限公司 | Lithium cell group temperature equalization mechanism |
| CN115498328A (en) * | 2022-11-07 | 2022-12-20 | 山东大学 | Semi-open type battery thermal management device coupled with battery surface |
| CN115498328B (en) * | 2022-11-07 | 2024-05-31 | 山东大学 | Semi-open battery thermal management device coupled with battery surface |
| CN118281419A (en) * | 2024-05-31 | 2024-07-02 | 四川信息职业技术学院 | Power battery phase change material temperature control box and temperature control method |
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Application publication date: 20190409 |
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