CN107887671A - A kind of round-the-clock effective heat management system of Li-ion batteries piles - Google Patents
A kind of round-the-clock effective heat management system of Li-ion batteries piles Download PDFInfo
- Publication number
- CN107887671A CN107887671A CN201610877704.6A CN201610877704A CN107887671A CN 107887671 A CN107887671 A CN 107887671A CN 201610877704 A CN201610877704 A CN 201610877704A CN 107887671 A CN107887671 A CN 107887671A
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- CN
- China
- Prior art keywords
- batteries piles
- ion batteries
- conducting sleeve
- thermal conducting
- 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.)
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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
- 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
- H01M10/05—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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
-
- 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
Abstract
The invention discloses a kind of round-the-clock effective heat management system of Li-ion batteries piles, the system includes battery case, is positioned over the thermal conducting sleeve set between the Li-ion batteries piles being made up of in battery case lithium ion battery, the insulation material of battery case inwall filling, lithium ion battery, filling phase-change material or heat pipe in the thermal conducting sleeve, the thermal conducting sleeve for filling phase-change material and the thermal conducting sleeve alternating for filling heat pipe are evenly distributed, and fin is provided with the top of the heat pipe.The present invention is simple in construction, easily fabricated, easy to use, adaptability is good, can be effectively improved the charge-discharge performance of Li-ion batteries piles at low ambient temperatures and the thermal safety under hot environment and can better ensure that the uniformity of cell temperature.
Description
Technical field：
The present invention relates to Li-ion batteries piles field of heat management, and in particular to a kind of round-the-clock effectively heat of Li-ion batteries piles
Management system.
Background technology：
Green energy resource of the lithium ion battery as a new generation, have high-energy-density, memory-less effect, environment-friendly etc. excellent
Point, it is widely applied in portable type electronic product field, with the development of society, lithium ion battery is in electrokinetic cell
And energy-storage battery field illustrates huge application potential.
The optimum working temperature of lithium ion battery is at 20-30 DEG C, and with the continuous expansion of application field, lithium ion battery
The extreme environments such as low temperature, high temperature are frequently encountered in use.Charge-discharge performance is big at low ambient temperatures for lithium ion battery
Width reduces, and seriously limits its use range.At low ambient temperatures, the discharge capacity of lithium ion battery will be remarkably decreased, it was reported that
31.5% when at -20 DEG C, discharge capacity of lithium ion battery only has normal temperature, when at -40 DEG C, its discharge capacity only has normal temperature
12%.At higher operating temperatures, side reaction easily occurs for electrode material and electrolyte, and capacity of lithium ion battery declines rapidly
Subtract, battery life substantially shortens.At a certain temperature, the metal oxide of positive electrode may decompose, the oxygen of release with it is inflammable
Electrolyte react and discharge heat；The chemism of negative electrode insertion graphite is close to lithium metal, with electrolyte and cohering
Agent can chemically react and discharge heat；Inside battery organic electrolyte itself is it can also happen that decomposing and releasing heat.
Under overheat condition, the rise of internal temperature of battery can promote the generation of above-mentioned exothermic reaction, be lacked if the design of battery is present
Fall into or thermal run away condition occurs in the improper battery that may result in of thermal management policy, catch fire, burn or even explode etc., it is larger so as to cause
The accident of harm.
In addition, Li-ion batteries piles are in the course of the work, due to the temperature environment and radiating condition residing for cell
Difference, cause the inconsistent of temperature between cell.Because battery is contributed difference under different temperature condition, further result in
Discharge capacity, cell voltage etc. is inconsistent between cell, reduces the whole service life of Li-ion batteries piles.
Common lithium ion battery heat management system takes into consideration only battery radiating；However, in cold season and relatively low
Environment temperature, the heating startup of battery, the insulation of (or even during operation) is all probably needs after shutting down.Therefore, lithium electricity is developed
Group round-the-clock effectively safe efficient use of the heat management system to lithium ion battery in pond has great significance.
The content of the invention：
It is simple in construction, be easy to it is an object of the invention to provide a kind of round-the-clock effective heat management system of Li-ion batteries piles
Manufacture, easy to use, adaptability is good, can be effectively improved the charge-discharge performance and height of Li-ion batteries piles at low ambient temperatures
Thermal safety under warm environment simultaneously can better ensure that the uniformity of cell temperature, make it in low temperature and hot environment
Can normal work, solve that Li-ion batteries piles in the prior art are influenced by ambient temperature to cause Li-ion batteries piles at low temperature
Cell temperature is inconsistent when thermally safe accident and work easily occurring under charge-discharge performance decline, high temperature causes lithium ion
The problem of service life of battery pack is short.
The present invention is achieved by the following technical programs：
A kind of round-the-clock effective heat management system of Li-ion batteries piles, the system include battery case, are positioned in battery case
What is set between the Li-ion batteries piles that are made up of lithium ion battery, the insulation material of battery case inwall filling, lithium ion battery leads
Thermal sleeve, the interior filling phase-change material of the thermal conducting sleeve or heat pipe, fill the thermal conducting sleeve of phase-change material and leading for filling heat pipe
Thermal sleeve alternating is evenly distributed, and fin is provided with the top of the heat pipe.
The fin being provided with the top of heat pipe and heat pipe forms heat pipe radiating system.
Preferably, the operating temperature of heat pipe is within the operating temperature range of lithium ion battery；Fin have low-density with
And the features such as easy processing.
The fin can not only be assembled with fixed dimension, fastening, and being also designed to size flexibly can stretch or can load and unload
, preferably meet the radiating of battery under different condition or be incubated needs.
Fin is made up of the good metal material of heat conduction, is shaped as ring-type, heronsbill and the type such as square.
The lithium ion battery is cylindrical or square.
Thermal conducting sleeve is hollow sleeve made of Heat Conduction Material, it is preferred that thermal conducting sleeve be with good heat conductive effect with
And etch-proof metal material is made.
The phase-change material has small Volume Changes, low-density and phase transition temperature in lithium ion battery operating temperature range
The features such as interior.The one kind of the phase-change material in paraffin, polyolefin, higher fatty acids, alcohol, preferably paraffin, paraffin
Phase transition temperature is in the range of 0-80 DEG C.
Preferably, insulation material has good thermal insulation property and relatively low density.
Battery case is the box body for playing support protective effect prepared by insulating materials, it is preferred that battery case cell material is tool
There are higher-strength, the material with preferable insulating properties and with preferable effect of heat insulation.
The insulation material of battery case inwall filling is incubated to Li-ion batteries piles.The thermal insulating material of battery case inwall filling
The insulation of the thermal conducting sleeve of filling phase-change material or heat pipe composition or cooling system are to Li-ion batteries piles between material, lithium ion battery
It is incubated or is radiated, realizes round-the-clock effective heat management of Li-ion batteries piles.
Under the operating mode that radiates, the phase-change material in thermal conducting sleeve absorbs heat, reduces the temperature of Li-ion batteries piles；Together
When, fin is arranged at the top of heat pipe, passes through heat pipe intensified radiating.
In the case where being incubated operating mode, phase-change material releases heat, maintains the temperature of lithium ion battery；In addition, at the top of dismounting heat pipe
Fin, reduce heat scatter and disappear.
The thermal conducting sleeve for filling phase-change material and the thermal conducting sleeve alternating for filling heat pipe are evenly distributed, can guarantee that lithium-ion electric
The uniformity of cell temperature in the group of pond.
Compared with prior art, the invention has the advantages that：
(1) simple in construction, easily fabricated, easy to use and applicability is good；
(2) space between battery is arranged in for the battery pack being made up of column lithium ion battery, thermal conducting sleeve etc.,
The volume of battery pack will not additionally be increased；
(3) operating temperature of Li-ion batteries piles is maintained, effectively solves the problems, such as that its is influenced by ambient temperature, is reduced extraneous
Influence and raising thermal safety of the temperature to performance；
(4) service life of Li-ion batteries piles in extreme circumstances is extended；
(5) temperature consistency between cell in battery pack is effectively ensured, extends the service life of Li-ion batteries piles.
In a word, the present invention is simple in construction, easily fabricated, easy to use, adaptability is good, can be effectively improved lithium ion battery
The charge-discharge performance of group at low ambient temperatures and the thermal safety under hot environment simultaneously can better ensure that cell temperature
Uniformity, make its in low temperature and hot environment can normal work, solve in the prior art Li-ion batteries piles by ring
Border temperature influence to cause Li-ion batteries piles at low temperature charge-discharge performance decline, easily occur under high temperature thermally safe accident and
During work cell temperature it is inconsistent cause Li-ion batteries piles service life it is short the problem of.
Brief description of the drawings：
Fig. 1 is the structural representation of the system of the embodiment of the present invention 1；
The cross-sectional view of the system of Fig. 2 embodiment of the present invention 1；
Fig. 3 is the side schematic view of the system of the embodiment of the present invention 1；
Fig. 4 is the assembling schematic diagram of the thermal conducting sleeve of the filling heat pipe of the embodiment of the present invention 1；
Fig. 5 is the schematic diagram of the metal heat-conducting sleeve pipe of the embodiment of the present invention 1；Wherein, 11, heat pipe；12nd, fin；13rd, cylinder
Shape lithium ion battery；14th, thermal conducting sleeve；15th, phase-change material；16th, insulation material；17th, battery case.
Fig. 6 is the structural representation of the system of the embodiment of the present invention 2；
Fig. 7 is the cross-sectional view of the system of the embodiment of the present invention 2；
Fig. 8 is the assembling schematic diagram of the thermal conducting sleeve of the filling heat pipe of the embodiment of the present invention 2；Wherein, 21, heat pipe；22nd, wing
Piece；23rd, rectangular lithium ion battery；24th, thermal conducting sleeve；25th, phase-change material；26th, insulation material；27th, battery case.
Embodiment：
It is to further explanation of the invention, rather than limitation of the present invention below.
Embodiment 1：
The round-the-clock effective heat management system of a kind of Li-ion batteries piles as shown in Fig. 1~Fig. 5, the system include battery case
17th, be positioned over the Li-ion batteries piles, the inwall of battery case 17 and the lithium that are made up of column lithium ion battery 13 in battery case 17 from
The thermal conducting sleeve 14 set between sub- battery pack between the insulation material 16 of space filling, column lithium ion battery 13, it is described to lead
Filling phase-change material 15 or heat pipe 11 in thermal sleeve 14, fill the heat conduction of the thermal conducting sleeve 14 and filling heat pipe 11 of phase-change material 15
Sleeve pipe 14 replaces evenly distributed, and the top of the heat pipe 11 is provided with removably fin 12.
The fin 12 that heat pipe 11 and the top of heat pipe 11 are provided with forms heat pipe radiating system.
Thermal conducting sleeve 14 is arranged in the space between column lithium ion battery 13, will not additionally increase the body of battery pack
Product.
Preferably, the operating temperature of heat pipe 11 is within the operating temperature range of lithium ion battery；Fin 12 has low close
The features such as degree and easy processing.Thermal conducting sleeve 14 is hollow sleeve made of Heat Conduction Material, it is preferred that thermal conducting sleeve 14 be with
Good heat conductive effect and etch-proof metal material are made.
The phase-change material 15 has small Volume Changes, low-density and phase transition temperature in lithium ion battery operating temperature model
Enclose the features such as interior.The one kind of the phase-change material 15 in paraffin, polyolefin, higher fatty acids, alcohol, preferably paraffin, stone
The phase transition temperature of wax is in the range of 0-80 DEG C.
Preferably, insulation material 16 has good thermal insulation property and relatively low density.
Battery case 17 is the box body for playing support protective effect prepared by insulating materials, it is preferred that the cell material of battery case 17
For the material with higher-strength, with preferable insulating properties and with preferable effect of heat insulation.
The insulation material 16 that space is filled between the inwall of battery case 17 and Li-ion batteries piles, Li-ion batteries piles are carried out
Insulation.
Between the inwall of battery case 17 and Li-ion batteries piles phase is filled between the insulation material 16 of space filling, lithium ion battery
The insulation or cooling system for becoming the composition of thermal conducting sleeve 14 of material 15 or heat pipe 11 are incubated or radiated to Li-ion batteries piles,
To realize round-the-clock effective heat management of Li-ion batteries piles.
Under the operating mode that radiates, the phase-change material 15 in thermal conducting sleeve 14 absorbs heat, reduces the temperature of Li-ion batteries piles；
Meanwhile fin 12 is arranged on the top of heat pipe 11, is strengthened by heat pipe 11 and radiated.
In the case where being incubated operating mode, phase-change material 15 releases heat, maintains the temperature of lithium ion battery；In addition, dismounting heat pipe 11
The fin 12 at top, reduce scattering and disappearing for heat.
The thermal conducting sleeve 14 of the thermal conducting sleeve 14 and filling heat pipe 11 of filling phase-change material 15 replaces evenly distributed, can guarantee that
The uniformity of cell temperature in Li-ion batteries piles.
Embodiment 2：
Reference implementation example 1, difference are that the Li-ion batteries piles are made up of rectangular lithium ion battery.As Fig. 6~
The round-the-clock effective heat management system of a kind of Li-ion batteries piles shown in Fig. 8, the system include battery case 27, are positioned over battery case
Li-ion batteries piles, insulation material 26, the square lithium of the filling of the inwall of battery case 27 being made up of in 27 rectangular lithium ion battery 23
The thermal conducting sleeve 24 set between ion battery 23, the interior filling phase-change material 25 of the thermal conducting sleeve 24 or heat pipe 21, fill phase transformation
The thermal conducting sleeve 24 of the thermal conducting sleeve 24 of material 25 and filling heat pipe 21 replaces evenly distributed, and the top of heat pipe 21 is provided with and can filled
The fin 22 unloaded.
The insulation material 26 of the inwall of battery case 27 filling is incubated to Li-ion batteries piles.
The insulation material 26 of the inwall of battery case 27 filling, the heat conduction that phase-change material 25 or heat pipe 21 are filled between lithium ion battery
The insulation or cooling system that sleeve pipe 24 forms are incubated or radiated to Li-ion batteries piles, to realize the complete of Li-ion batteries piles
The effective heat management of weather.
Under the operating mode that radiates, the phase-change material 25 in thermal conducting sleeve 24 absorbs heat, reduces the temperature of Li-ion batteries piles；
Meanwhile fin 22 is arranged on the top of heat pipe 21, is strengthened by heat pipe 21 and radiated.
In the case where being incubated operating mode, phase-change material 25 releases heat, maintains the temperature of lithium ion battery；In addition, dismounting heat pipe 21
The fin 22 at top, reduce scattering and disappearing for heat.
The thermal conducting sleeve 24 of the thermal conducting sleeve 24 and filling heat pipe 21 of filling phase-change material 25 replaces evenly distributed, can guarantee that
The uniformity of cell temperature in Li-ion batteries piles.
Claims (6)
1. a kind of round-the-clock effective heat management system of Li-ion batteries piles, it is characterised in that the system includes battery case, is positioned over
Between the interior Li-ion batteries piles being made up of lithium ion battery of battery case, the insulation material of battery case inwall filling, lithium ion battery
The thermal conducting sleeve of setting, the interior filling phase-change material of the thermal conducting sleeve or heat pipe, fill thermal conducting sleeve and the filling of phase-change material
The thermal conducting sleeve alternating of heat pipe is evenly distributed, and fin is provided with the top of the heat pipe.
2. the round-the-clock effective heat management system of Li-ion batteries piles according to claim 1, it is characterised in that the fin
Size can flexibly stretch or the fin is removably.
3. the round-the-clock effective heat management system of Li-ion batteries piles according to claim 1 or 2, it is characterised in that described
Fin shape is ring-type, heronsbill or square.
4. the round-the-clock effective heat management system of Li-ion batteries piles according to claim 1 or 2, it is characterised in that described
Lithium ion battery is cylindrical or square.
5. the round-the-clock effective heat management system of Li-ion batteries piles according to claim 4, it is characterised in that the lithium from
Sub- battery for it is cylindrical when, the system include battery case, be positioned in battery case by the lithium that column lithium ion battery forms from
Set between sub- battery pack, battery case inwall and Li-ion batteries piles between the insulation material of space filling, column lithium ion battery
The thermal conducting sleeve put, the interior filling phase-change material of the thermal conducting sleeve or heat pipe, fill the thermal conducting sleeve and filling heat of phase-change material
The thermal conducting sleeve alternating of pipe is evenly distributed, and removably fin is provided with the top of the heat pipe.
6. the round-the-clock effective heat management system of Li-ion batteries piles according to claim 1 or 2, it is characterised in that described
The one kind of phase-change material in paraffin, polyolefin, higher fatty acids, alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877704.6A CN107887671B (en) | 2016-09-30 | 2016-09-30 | All-weather effective thermal management system for lithium ion battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877704.6A CN107887671B (en) | 2016-09-30 | 2016-09-30 | All-weather effective thermal management system for lithium ion battery pack |
Publications (2)
| Publication Number | Publication Date |
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| CN107887671A true CN107887671A (en) | 2018-04-06 |
| CN107887671B CN107887671B (en) | 2020-03-13 |
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| CN201610877704.6A Active CN107887671B (en) | 2016-09-30 | 2016-09-30 | All-weather effective thermal management system for lithium ion battery pack |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066002A (en) * | 2018-07-09 | 2018-12-21 | 华中科技大学 | Heat management system is automatically controlled based on phase-change accumulation energy and the power battery of pyroelectric effect |
| CN109659644A (en) * | 2019-01-31 | 2019-04-19 | 广东硅岳能源科技有限公司 | A kind of self radiation type emergency cell group of its composition of phase-change accumulation energy monomer |
| CN109888432A (en) * | 2019-01-26 | 2019-06-14 | 宁波诺丁汉大学 | A kind of lithium ion battery heat management system containing spraying cooling and phase-change material heat accumulation |
| CN111477996A (en) * | 2020-05-27 | 2020-07-31 | 中国航空发动机研究院 | Battery pack and dual-mode hybrid power aircraft battery thermal management system |
| CN111641003A (en) * | 2019-03-01 | 2020-09-08 | 中国科学院广州能源研究所 | Thermal management system for power battery pack |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066002A (en) * | 2018-07-09 | 2018-12-21 | 华中科技大学 | Heat management system is automatically controlled based on phase-change accumulation energy and the power battery of pyroelectric effect |
| CN109888432A (en) * | 2019-01-26 | 2019-06-14 | 宁波诺丁汉大学 | A kind of lithium ion battery heat management system containing spraying cooling and phase-change material heat accumulation |
| CN109659644A (en) * | 2019-01-31 | 2019-04-19 | 广东硅岳能源科技有限公司 | A kind of self radiation type emergency cell group of its composition of phase-change accumulation energy monomer |
| CN111641003A (en) * | 2019-03-01 | 2020-09-08 | 中国科学院广州能源研究所 | Thermal management system for power battery pack |
| CN111477996A (en) * | 2020-05-27 | 2020-07-31 | 中国航空发动机研究院 | Battery pack and dual-mode hybrid power aircraft battery thermal management system |
| CN111477996B (en) * | 2020-05-27 | 2022-03-08 | 中国航空发动机研究院 | Dual-mode hybrid power aircraft battery thermal management system |
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