CN106953137B - A method of it is radiated using hydrogel enhancing battery modules - Google Patents
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6562—Gases with free flow by convection only
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
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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
- H01M10/65—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
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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
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- 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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
Disclosed by the invention is a kind of method using hydrogel enhancing battery modules heat dissipation, including several battery modules, Battery case and the water gel formed by organic high molecular polymer and cross-linking agents, the battery modules are made of several battery cells, gap is installed between the battery cell, gap is installed between the battery cell and battery modules, the water gel cooperation is filled in the gap, and the height of the water gel is no more than 90% that the battery cell removes height other than tab, being sticked on the outside of battery modules has the water gel, and battery modules are arranged in the Battery case by certain interval and form battery system.The present invention can not only effectively improve the heat-sinking capability of battery modules, improve the safety of battery modules, and entire scheme, without using optional equipments such as fan, water pump, refrigeration equipments, system structure is simpler practical, no power consumption, more environmentally-friendly energy conservation.
Description
Technical field
The present invention relates to new-energy automobile power battery technical applications, more specifically a kind of to utilize water-setting
The method that glue increases battery modules heat dissipation.
Background technique
Lithium-ion battery systems energy used by new-energy automobile is high, the service life is long, however, in charge and discharge process, electricity
Cell system can cause system temperature to increase because of reasons such as battery electrochemical heat production, internal resistance heat production, tab joule heat production.Lithium-ion electric
The normal working temperature in pond is about 0 ~ 50oC, when temperature is higher than 50oInside battery electrolyte or SEI film etc. are subject to irreversible after C
Destruction, if constant temperature increase if can cause thermal runaway cause battery failure even explode.Therefore, battery temperature is managed, is made
Its work is the task of a most important thing for new-energy automobile safety in reasonable temperature range.
The measure to cool down in the heat management generallyd use at present has air-cooled and water cooling, wherein air-cooled to be easier aggravation electricity
Pond module temperature is uneven；In addition, water cooling needs to be equipped with water pump, circulating line, the equipment such as refrigeration machine increase battery system
Cost and weight.
Hydrogel is that a kind of water content is high, and has the general designation of the high molecular polymer of certain shape and mechanical performance,
The specific heat capacity and thermal conductivity and water of hydrogel are all suitable, about 4.2-5.2kJ/ (kg*K), and this programme is intended utilizing hydrogel
On the basis of, enhance battery modules heat-sinking capability.
Summary of the invention
Disclosed by the invention is the method for increasing battery modules heat dissipation using hydrogel, and main purpose is to overcome existing
Technology above shortcomings and disadvantage provide a kind of heat dissipating method of car lithium battery mould group, it not only can effectively be mentioned
The heat-sinking capability of high battery modules improves the safety of battery modules, and entire scheme is without using fan, water pump, refrigeration
The optional equipments such as equipment, system structure is simpler practical, no power consumption, more environmentally-friendly energy conservation.
The technical solution adopted by the invention is as follows:
A method of using hydrogel enhancing battery modules radiate, including several groups battery modules, Battery case and by
The water gel that organic high molecular polymer and cross-linking agents are formed, the battery modules are made of several battery cells,
It is installed with gap between the battery cell, gap, the water gel cooperation are installed between the battery cell and battery modules
It is filled in the gap, and the height of the water gel is no more than 90% that the battery cell removes height other than tab；It is described
Battery modules are in rectangular configuration, and being sticked respectively on four lateral walls of the battery modules and the lateral wall of upper top surface has the water-setting
Colloid, the battery modules are evenly spaced arranged in the Battery case by certain gap and form battery system, the electricity
Air inlet and air outlet are offered on the side wall of pond cabinet；The heat conduction that the battery cell generates in the water gel,
The heat in water gel is taken away in the heat exchange of the air and water gel interface that are entered by air inlet, promotes more heats
It is distributed from battery cell, reduces battery cell temperature.
Further, be also inserted with inside the battery modules and on water gel that lateral surface is sticked several aluminium wire or
Aluminium foil.
Further, the water gel is temperature-sensitive hydrogel body, the water gel when temperature is higher than certain value
Moisture content can be discharged automatically, distributed by moisture evaporation heat absorption accelerated heat.
Further, the water gel water content is higher than 70%.
Further, between the battery cell and the pore size between battery cell and battery modules by heat emulate
It is computed optimization, Parameters variation interval is less than 5mm, and number of parameters is no less than 5, according to hot simulation result, draws gap
Size and mould group mean temperature relational graph, and when calculating battery modules volume corresponding to pore size battery modules energy density per unit volume
Amount draws pore size and energy density per unit volume relational graph, takes into account two indexs according to mapping result and determine best pore size, make
Synthesis result is optimal and comprehensively considers battery modules bulk factor and obtain.
Further, the water gel thickness is less than 3mm, number of parameters via hot simulation calculation, Parameters variation interval
No less than 5, according to hot simulation result, thickness and battery modules mean temperature relational graph are drawn, and calculate water gel
Corresponding to thickness when battery modules weight battery modules specific energy, draw thickness and specific energy relational graph, according to
Mapping result takes into account two indexs and determines optimum thickness, is optimal synthesis result；Comprehensive battery modules weight, takes into account two
Index is optimal synthesis result, is with reference to being arranged water gel thickness with optimal result.
Further, after the battery modules for posting water gel are discharged in the Battery case, institute between battery modules
The gap of reservation is 1-200mm, and occurrence optimizes to obtain via heat emulation with fluid emulation, and the pore size is as its change of parameter
Change interval and be less than 5mm, number of parameters is no less than 5, and according to the hot simulation result under the influence of hydrodynamics, it is big to draw gap
The small mean temperature relational graph with battery system, and when calculating Battery case volume corresponding to pore size battery system volume
Specific energy draws pore size and energy density per unit volume relational graph, takes into account two indexs according to mapping result and determine that best gap is big
It is small, it is optimal synthesis result.
Further, the wind that the air inlet is blown into is any one in natural wind or on-board air conditioner wind.
By the above-mentioned description of this invention it is found that compared to the prior art, the present invention has the advantages that
The present invention can temporarily store more heat using the high specific heat capacity of water gel by increasing setting water gel
Then the heat is exchanged with air convection and evaporation endothermic acts on, heat is pulled away, realizes the purpose of heat dissipation, phase by amount
Than being more advantageous to heat exchange in the system structure of the battery modules of anhydrous gel piece, this programme, efficiently dissipated so as to reach
The purpose of heat；Meanwhile the system structure of this programme is simpler, no setting is required additives such as fan, water pump, refrigeration machine, aluminum pipe,
It is unobvious to increase car weight, does not also increase Full Vehicle System power consumption, it is more environmentally-friendly.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of battery modules of the present invention.
Fig. 2 is the structural schematic diagram of Battery case of the present invention.
Specific embodiment
Explanation is with reference to the accompanying drawings to further explain a specific embodiment of the invention.
Embodiment one
As shown in Figures 1 and 2, a method of radiated using hydrogel enhancing battery modules, including a battery modules, electricity
Pond cabinet 1 and the water gel 2 formed by organic high molecular polymer and cross-linking agents, 2 water content of water gel are high
In 70%, the water gel 2 is temperature-sensitive hydrogel body, and when temperature is higher than certain value, the water gel can discharge automatically
Moisture content is distributed by evaporation endothermic accelerated heat.The battery modules are made of 10 battery cells 3, between the battery cell 3
It is installed with gap, gap is installed between the battery cell 3 and battery modules, 2 body of the hydrogel cooperation is filled in the gap
In, and the height of the water gel 2 is no more than 90% that the battery cell 3 removes height other than tab；The battery modules are in
Being sticked respectively on rectangular configuration, four lateral walls of the battery modules and the lateral wall of upper top surface has the water gel 2；It is described
Offer air inlet 11 and air outlet 12 on the side wall of Battery case 1, the battery modules by certain spacing it is uniformly distributed
In the Battery case 1, certain gap is remained between the battery cell 3 for the water gel 2 that makes to be sticked；The battery cell 3
The heat conduction of generation is in the air and the heat exchange at 2 interface of water gel that are entered in the water gel 2 by air inlet 11
The heat in water gel 2 is taken away, more heats is promoted to distribute from battery cell 3, reduces by 3 temperature of battery cell.
The thickness of the hydrogel sheet is 5mm, in order to further increase the thermal conductivity of hydrogel sheet, the battery modules
Several aluminium wire or aluminium foil are also inserted on the water gel 2 that internal and lateral surface is sticked.The battery modules are pressed between 15mm
Away from discharging in Battery case 1, having pasted the gap between the battery modules after water gel 2 is 5mm, battery modules lateral surface
Post the water gel 2 of 5mm thickness.Between the battery cell 3 and the pore size between battery cell 3 and battery modules by
Heat emulation is computed optimization, and Parameters variation interval is less than 5mm, and number of parameters is no less than 5, according to hot simulation result, draws
Pore size processed and mould group mean temperature relational graph, and when calculating battery modules volume corresponding to pore size battery modules body
Product specific energy, draws pore size and energy density per unit volume relational graph, takes into account two indexs according to mapping result and determine best gap
Size is optimal synthesis result and comprehensively considers Battery case bulk factor and obtain.Patch is discharged in the Battery case 1
The gap retained after the battery modules for having water gel 2 can be 1-200mm, and occurrence is via heat emulation and fluid emulation
Optimization obtains, which is less than 5mm as its change interval of parameter, and number of parameters is no less than 5, according to hydrodynamics shadow
Hot simulation result under ringing draws pore size and battery cell system mean temperature relational graph, and calculates pore size
The energy density per unit volume of battery system when corresponding Battery case volume draws pore size and energy density per unit volume relational graph, according to
Mapping result takes into account two indexs and determines best pore size, is optimal synthesis result.
The wind that Battery case 1 uses carries out heat exchange and can take away water-setting quoted from air-conditioner wind, air-conditioner wind and 2 interface of water gel
Heat in glue promotes more heats to distribute from battery cell 3, to reduce by 3 temperature of battery cell.And the sky of small flow velocity
Adjust wind that can make hydrogel that in the temperature of air-conditioner wind, air-conditioning energy consumption can be saved steadily in the long term.Emulation experiment shows in identical wind
Under the conditions of fast, identical fever, heater surface covering water gel is compared with two kinds of situations of aluminium flake, water gel is more sharp
In heat dissipation, especially the advantage of water gel is become apparent under small wind speed.
Embodiment two
The present embodiment and the distinctive points of embodiment one are: the wind that the present embodiment Battery case 1 uses quoted from natural wind, when
When hydrogel temperature is lower than certain temperature value, air and 2 interface of water gel carry out heat exchange to take away the heat in hydrogel,
More heats are promoted to distribute from battery cell 3, to reduce by 3 temperature of battery cell；When 2 temperature of water gel is higher than certain temperature
When value, which can discharge moisture content automatically, and moisture content is accelerated evaporation under the influence of ventilation opening introduced wind,
Evaporative phase-change heat absorption, can take away the amount of heat in battery modules, to achieve the purpose that high efficiency and heat radiation.Other feature and implementation
As soon as example is identical, no longer repeat herein.
The present invention can temporarily store more heat using the high specific heat capacity of water gel by increasing setting water gel
The heat, is then exchanged with air convection and evaporation endothermic, heat is pulled away, the purpose of heat dissipation is realized, compared to nothing by amount
The battery modules of hydrogel sheet, the system structure of this programme is more advantageous to heat exchange, so as to reach the mesh of high efficiency and heat radiation
's；Meanwhile the system structure of this programme is simpler, no setting is required additives such as fan, water pump, refrigeration machine, aluminum pipe, increases vehicle
Weight is unobvious, does not also increase Full Vehicle System power consumption, more environmentally-friendly.
The above is only a specific embodiment of the present invention, but design concept of the invention is not limited merely to this, all benefits
The present invention is improved with carrying out unsubstantiality with this design, should be belonged to behavior that violates the scope of protection of the present invention.
Claims (7)
1. a kind of method using hydrogel enhancing battery modules heat dissipation, it is characterised in that: including several groups battery modules, battery
Cabinet and the water gel formed by organic high molecular polymer and cross-linking agents, the battery modules are by several battery lists
Body forms, and is installed with gap between the battery cell, gap, the hydrogel are installed between the battery cell and battery modules
Body cooperation is filled in the gap, and the height of the water gel is no more than the battery cell and removes height other than tab
90%；The battery modules are in rectangular configuration, and being sticked respectively on four lateral walls of the battery modules and the lateral wall of upper top surface has
The water gel, the battery modules are evenly spaced arranged in composition battery system in the Battery case by certain gap
It unites, offers air inlet and air outlet on the side wall of the Battery case；The heat that the battery cell generates is conducted in the water
In gelinite, the heat in water gel is taken away in the heat exchange of the air and water gel interface that are entered by air inlet, promotes
More heats are distributed from battery cell, reduce battery cell temperature；
Pore size between the battery cell and between battery cell and battery modules is computed optimization by heat emulation, joins
Number change interval is less than 5mm, and number of parameters is no less than 5, according to hot simulation result, draws pore size and mould group is average
Temperature relation figure, and when calculating battery modules volume corresponding to pore size battery modules energy density per unit volume, it is big to draw gap
Small and energy density per unit volume relational graph, takes into account two indexs according to mapping result and determines best pore size, reach synthesis result
It is optimal and comprehensively consider battery modules bulk factor and obtain.
2. a kind of method using hydrogel enhancing battery modules heat dissipation according to claim 1, it is characterised in that: described
Several aluminium wire or aluminium foil are also inserted on the water gel that battery modules inside and lateral surface are sticked.
3. a kind of method using hydrogel enhancing battery modules heat dissipation according to claim 1, it is characterised in that: described
Water gel is temperature-sensitive hydrogel body, and when temperature is higher than certain value, the water gel can discharge moisture content automatically, passes through water
Part evaporation endothermic accelerated heat distributes.
4. a kind of method using hydrogel enhancing battery modules heat dissipation according to claim 1 or 3, it is characterised in that:
The water gel water content is higher than 70%.
5. a kind of method using hydrogel enhancing battery modules heat dissipation according to claim 1, it is characterised in that: described
Water gel thickness is less than 3mm via hot simulation calculation, Parameters variation interval, and number of parameters is no less than 5, according to heat emulation meter
It calculates as a result, drawing thickness and battery modules mean temperature relational graph, and calculate battery modules weight corresponding to water gel thickness
When battery modules specific energy, draw thickness and specific energy relational graph, it is true that two indexs taken into account according to mapping result
Determine optimum thickness, is optimal synthesis result；Comprehensive battery modules weight, taking into account two indexs reaches synthesis result most
It is excellent, it is with reference to being arranged water gel thickness with optimal result.
6. a kind of method using hydrogel enhancing battery modules heat dissipation according to claim 1, it is characterised in that: described
After discharging the battery modules for posting water gel in Battery case, the gap retained between battery modules is 1-200mm, tool
Body value optimizes to obtain via heat emulation with fluid emulation, which is less than 5mm, number of parameters as its change interval of parameter
No less than 5, according to the hot simulation result under the influence of hydrodynamics, draw the mean temperature of pore size and battery system
Relational graph, and when calculating Battery case volume corresponding to pore size battery system energy density per unit volume, draw pore size with
Energy density per unit volume relational graph takes into account two indexs according to mapping result and determines best pore size, is optimal synthesis result.
7. a kind of method using hydrogel enhancing battery modules heat dissipation according to claim 1, it is characterised in that: described
The wind that air inlet is blown into is any one in natural wind or on-board air conditioner wind.
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| DE102018207938A1 (en) * | 2018-05-18 | 2019-11-21 | Bayerische Motoren Werke Aktiengesellschaft | Storage device for storing electrical energy for a motor vehicle, in particular for a motor vehicle, and motor vehicle |
| CN111864298A (en) * | 2020-06-23 | 2020-10-30 | 江苏大学 | Lithium battery passive heat dissipation treatment device based on sodium polyacrylate hydrogel |
| CN111760759B (en) * | 2020-06-29 | 2021-11-02 | 蜂巢能源科技有限公司 | Cold plate gluing device and method |
| CN114552051A (en) * | 2021-07-21 | 2022-05-27 | 万向一二三股份公司 | Battery module and heat-conducting plate for enhancing heat dissipation of battery module |
| WO2024083143A1 (en) * | 2022-10-21 | 2024-04-25 | 南京泉峰科技有限公司 | Battery pack and electric tool system |
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| CN106257739A (en) * | 2015-12-18 | 2016-12-28 | 上海卡耐新能源有限公司 | A kind of battery module and preparation method thereof |
| CN105552478B (en) * | 2016-01-15 | 2018-03-23 | 温州大学激光与光电智能制造研究院 | The design method of temperature of powered cell control system and corresponding control system |
| CN106025438B (en) * | 2016-07-30 | 2018-09-28 | 安徽师范大学 | Vehicle lithium battery humidity control system and its control method |
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