CN209544556U - Battery applying phase change heat storage - Google Patents
Battery applying phase change heat storage Download PDFInfo
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- CN209544556U CN209544556U CN201920165316.4U CN201920165316U CN209544556U CN 209544556 U CN209544556 U CN 209544556U CN 201920165316 U CN201920165316 U CN 201920165316U CN 209544556 U CN209544556 U CN 209544556U
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- 238000005338 heat storage Methods 0.000 title claims abstract description 28
- 230000008859 change Effects 0.000 title abstract description 8
- 239000012782 phase change material Substances 0.000 claims abstract description 52
- 239000003094 microcapsule Substances 0.000 claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- 238000009825 accumulation Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 15
- 229910052744 lithium Inorganic materials 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 15
- 230000009466 transformation Effects 0.000 claims description 13
- 239000004411 aluminium Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
Classifications
-
- 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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Abstract
The utility model provides an use phase change heat storage's battery, this battery includes shell and a plurality of battery cell, is provided with the metal block in the shell, is provided with a plurality of mounting grooves of being convenient for battery cell installation on the metal block, is provided with between metal block and the shell to be used for heat accumulation and exothermic phase change filling layer, and the phase change filling layer includes a plurality of microcapsules, is provided with phase change material in the microcapsule. This battery reasonable in design, convenient to use carry out the heat accumulation through setting up phase change material for the battery temperature can keep at optimum temperature for a long time, thereby makes battery capacity great, reduces the electric energy loss, prolongs battery life, plays energy-conserving, the effect of environmental protection.
Description
Technical field
The utility model relates to a kind of battery, especially a kind of battery using phase-transition heat-storage.
Background technique
Battery industry high speed development, different types of battery such as lithium ion battery, nickel-metal hydride battery, fuel cell, plumbic acid electricity
Pond, supercapacitor etc. are widely used in the fields such as portable electronic product, traffic, energy storage.But at the same time, also there is many ask
Topic exists:
1) safety accident caused by battery occurs frequently, main reason is that battery temperature is excessively high to cause thermal runaway, causes
Electrolyte vaporization, battery short circuit etc., seriously affect battery using the safe and service life；
2) when battery temperature is too low, battery capacity decline is serious, and internal resistance increases, and the discharging efficiency of battery reduces etc., influences
The service performance of battery；
3) structure is complicated for traditional heat-dissipating mode, and battery temperature fluctuation is larger, and is applied substantially to large-sized power battery
Field, compact lithium cell is substantially without application；
4) pollution problem caused by battery discharge is still serious, recycling higher cost of battery etc..
Summary of the invention
Technical problem to be solved in the utility model is that in view of the deficiencies of the prior art, providing one kind can be by battery
Temperature remains to most preferably, greatly improves the battery using phase-transition heat-storage of battery service performance.
Technical problem to be solved in the utility model is realized by technical solution below.The utility model is
A kind of battery using phase-transition heat-storage, the battery include shell and several cell batteries, and metal block, metal are provided in shell
It is provided with several mounting grooves convenient for cell batteries installation on block, is provided between metal block and shell for accumulation of heat and heat release
Phase transformation filled layer, phase transformation filled layer includes several microcapsules, is provided with phase-change material in microcapsules.
Technical problem to be solved in the utility model can also be further realized by technical solution below, for
The above-described battery using phase-transition heat-storage is provided with the opening convenient for cell batteries installation at the top of the shell, opens
Mouth is sealed by upper cover, and positive electrode and negative electrode convenient for power output, positive electrode and cell batteries are additionally provided on upper lid
Anode conducting, negative electrode is connected with the cathode of cell batteries.
Technical problem to be solved in the utility model can also be further realized by technical solution below, for
The above-described battery using phase-transition heat-storage, the bottom of the metal block are provided at least two convex block, and outer casing bottom is provided with
With the groove of convex block cooperation, the height of convex block is greater than the depth of groove.
Technical problem to be solved in the utility model can also be further realized by technical solution below, for
The above-described battery using phase-transition heat-storage, the microcapsules include the equal high temperature microcapsules and low temperature microcapsules of quantity,
The phase-change material that phase transition temperature is 40 DEG C is provided in high temperature microcapsules, it is 20 DEG C that phase transition temperature is provided in low temperature microcapsules
Phase-change material.
Technical problem to be solved in the utility model can also be further realized by technical solution below, for
The above-described battery using phase-transition heat-storage, the high temperature microcapsules and low temperature microcapsules are successively spaced setting.
Technical problem to be solved in the utility model can also be further realized by technical solution below, for
The above-described battery using phase-transition heat-storage, several cell batteries serial or parallel connection settings.
Technical problem to be solved in the utility model can also be further realized by technical solution below, for
The above-described battery using phase-transition heat-storage, the phase-change material are phase-change wax.
Technical problem to be solved in the utility model can also be further realized by technical solution below, for
The above-described battery using phase-transition heat-storage, the cell batteries are lithium battery, and metal block is aluminium block.
Technical problem to be solved in the utility model can also be further realized by technical solution below, for
The above-described battery using phase-transition heat-storage, the shell and metal block in a rectangular parallelepiped shape, cell batteries and mounting groove
It is cylindrical.
Technical problem to be solved in the utility model can also be further realized by technical solution below, for
The above-described battery using phase-transition heat-storage is provided with the insulating layer for preventing heat loss on the inside of the shell.
Compared with prior art, the utility model is by using phase-change material accumulation of heat, between cell batteries and shell
Phase transformation filled layer is added, phase-change material is set in the microcapsules at phase transformation filled layer, when cell batteries discharge temp increases
It absorbs heat to cool down to cell batteries, cool down to release heat to cell batteries when battery temperature is reduced,
A certain number of phase-change materials are added in proportion, the temperature of cell batteries can be made to be maintained within the scope of 20-40 DEG C for a long time, greatly
The big service performance for improving battery.The battery design is reasonable, easy to use, accumulation of heat is carried out by setting phase-change material, so that electric
Pond temperature can be maintained at optimum temperature for a long time, so that battery capacity is larger, reduce electric energy loss, extend battery and use
Service life plays the role of energy-saving and environmental protection.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model upper cover；
Fig. 3 is that the utility model tests connection schematic diagram；
Fig. 4 is that the utility model tests the temperature variation measured；
Fig. 5 is the power consumption comparison diagram of the utility model；
Fig. 6 is the service life comparison diagram of the utility model.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, right below in conjunction with attached drawing of the present invention
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Referring to Fig.1-2, a kind of battery using phase-transition heat-storage, the battery include shell 1 and several cell batteries 3, outside
It is provided with metal block 2 in shell 1, is provided with several mounting grooves installed convenient for cell batteries 3 on metal block 2, metal block 2 and outer
It is provided between shell 1 for accumulation of heat and exothermic phase transformation filled layer 4, phase transformation filled layer 4 includes several microcapsules, is set in microcapsules
It is equipped with phase-change material.There are two the effects of metal block 2, and one is as bracket, convenient for the installation of cell batteries 3；One is
Conductive force is played, heat can be passed in time phase-change material from battery quick conductive by the good heat conductivity of metal；Installation
When, first metal block 2 is installed in shell 1, then microcapsules are full of gap between shell 1 and metal block 2, it when necessary, can benefit
It is fixed with thermal plastic insulation, prevents from shaking between microcapsules；Finally, cell batteries 3 are sequentially placed into mounting groove again,
Also it can use thermal plastic insulation to be fixed；Phase-change material in microcapsules does not need to be full of, and there are certain gaps, avoids
Phase-change material expanded by heating, microcapsules are burst, and the phase transition process of such phase-change material carries out inside microcapsules, in phase transformation
Microcapsules volume does not change in the process, can prevent the destruction that may cause to shell 1.
The top of the shell 1 is provided with the opening installed convenient for cell batteries 3, and opening is sealed by upper cover 7, upper cover
The positive electrode and negative electrode convenient for power output, the anode conducting of positive electrode and cell batteries 3, negative electrode are additionally provided on 7
It is connected with the cathode of cell batteries 3.It is provided in upper cover 7 convenient for the door lock fixed with shell 1, prevents cell batteries 3 from falling
It falls.
The bottom of the metal block 2 is provided at least two convex block, and 1 bottom of shell is provided with the groove with convex block cooperation, convex
The height of block is greater than the depth of groove.Convex block is cylindrical with groove, convenient for cooperating；Metal block 2 by convex block with it is recessed
Slot is fitted in shell 1, avoids generating shaking；The height of convex block be greater than groove depth so that the bottom of metal block 2 with
Certain interval has been retained between the bottom of shell 1, convenient for the setting of microcapsules, has allowed the phase-change material in microcapsules to gold
Belong to block 2 and carries out uniform heat release or heat absorption.
The microcapsules include the equal high temperature microcapsules 5 and low temperature microcapsules 6 of quantity, are provided in high temperature microcapsules 5
Phase transition temperature is 40 DEG C of phase-change material, and the phase-change material that phase transition temperature is 20 DEG C is provided in low temperature microcapsules 6.Temperature exists
At 20-40 DEG C or so, the service performance of battery is best, and the phase-change material that phase transition temperature is 40 DEG C is provided in high temperature microcapsules 5,
For absorbing heat when temperature is increased to 40 DEG C, heat release is carried out when being reduced to 40 DEG C, temperature is avoided to be higher than 40 DEG C or more；Low temperature
The phase-change material that phase transition temperature is 20 DEG C is provided in microcapsules 6 to be increased to for carrying out heat release when temperature is reduced to 20 DEG C
Heat release is carried out at 20 DEG C, avoid temperature lower than 20 DEG C hereinafter, make battery for a long time work under appropriate temperature conditions, improve battery
Service performance.
The high temperature microcapsules 5 and low temperature microcapsules 6 are successively spaced setting.The row of high temperature microcapsules 5 and low temperature microcapsules 6
There are many column modes, such as one layer of high temperature microcapsules 5, one layer of low temperature microcapsules 6, and so on arrangement；Alternatively, the micro- glue of column high temperature
Capsule 5, a column low temperature microcapsules 6, and so on arrangement；It is arrived convenient for the phase-change material in high temperature microcapsules 5 and low temperature microcapsules 6
The uniform neither endothermic nor exothermic of phase transformation can be carried out after up to respective phase change temperature.
3 serial or parallel connection of several cell batteries setting.When in parallel, anode and anode, cathode and cathode connect side by side
Together, voltage is constant, and capacity increases, and corresponding electric current also increases；When series connection, namely positive and negative is gone here and there together end to end,
One negative is connecing second just, and so on, voltage increases, and capacity is constant；It can be selected according to actual needs.
The phase-change material is phase-change wax.Phase-change wax refers to phase-changing energy storage material Wax special, is a kind of phase transition temperature 20
Phase transition temperature, can be set in 20 DEG C -80 DEG C of either segment point by DEG C -80 DEG C of special wax according to actual needs, purity is high,
Phase transition temperature is accurate, and heat content is high, non-toxic and tasteless, white.
The cell batteries 3 are lithium battery, and small in size, capacity is big, voltage stabilization, can be recycled, high safety；
Metal block 2 is aluminium block, and heat can be passed in time phase transformation material from 3 quick conductive of cell batteries by the good heat conductivity of aluminium
Material.
In a rectangular parallelepiped shape, cell batteries 3 and mounting groove are cylindrical, mounting groove for the shell 1 and metal block 2
Size is in the same size with cell batteries 3, and biggish shaking occurs after avoiding cell batteries 3 from being installed in mounting groove, must
Cell batteries 3 can be fixed with mounting groove by thermal plastic insulation when wanting.
The inside of the shell 1 is provided with the insulating layer for preventing heat loss.Insulating layer uses thermal insulation material, such as rubber and plastic sea
Silk floss is made, and for reducing the heat exchange inside and outside shell 1, minimizes and outside heat is avoided to have an impact phase-change material.
The working principle of the application:
Battery using when temperature height led to due to exothermic heat of reaction, when temperature rises to phase-change material fusing point, microcapsules
Internal phase-change material starts to transform to liquid by solid-state, absorbs amount of heat from battery at this time, efficiently makes battery temperature steady
It is scheduled near melting temperature, and can guarantee battery temperature in a long time at 20-40 DEG C or so, make battery for a long time suitable
It works under the conditions of temperature, improves the service performance of battery.
When after battery stops working or being in standby mode, battery starts to cool down, microcapsules phase change material inside due to
Battery temperature is lower than freezing point, starts to become solid-state from liquid, solidifies heat release at this time, transfer heat to battery, make battery temperature
Degree stills remain within the scope of 20-40 DEG C, and battery capacity is made to be maintained at high value, simultaneously because there are the tired of cold-starting for battery
Difficulty is also beneficial to battery and starts next time.
The mode of the application is different from traditional active heat management mode, and phase-change material cooling belongs to passive type heat pipe
Reason, does not consume additional electric energy or other energy, and can effectively keep temperature and stablize, to the use of battery and service life meaning weight
Greatly.
The advantage of the application:
1, lithium battery battery capacity in 20-40 DEG C or so use is big, and the internal resistance of cell is small, and performance is best, and security risk is small.
It therefore, is respectively the phase-change material composition composite phase-change material of 20 DEG C (low temperature) with 40 DEG C (high temperature) using phase transition temperature, with low
Warm microcapsules and high temperature microencapsulation form are mixed in a certain ratio filling, and ratio then according to the characteristic of specific electronic product and makes
It is determined with region；
Composite phase-change material can ensure that battery temperature for a long time be maintained within the scope of 20-40 DEG C, single phase-change material then without
This effect；
Microcapsule structure advantage: PCM stability is 1. improved；2. strengthening PCM heat transfer property；3. improving PCM processing performance；④
Prevent destruction of the volume change to shell.
The theoretical calculation of the application:
1, the dosage of phase-change material calculates:
The dosage of phase-change material is particularly significant, and phase-change material can very little, which all melted, becomes liquid, and battery continues to use
And the heat generated cannot be not only absorbed, but also due to the insulation effect of liquid state phase change material, heat cannot be discharged into time
The external world causes degree of danger to be aggravated；Though too many temperature control effect is good, the quality and cost of battery are increased, it is also undesirable, because
This, carries out scientific algorithm to the used in amounts of phase-change material.
Assuming that all heats that battery generates can be absorbed by phase-change material, equation can be obtained:
Formula deformation, can obtain:
In formula, Q is the heat that battery is released, MPCMFor the phase-change material quality of needs, H is the latent heat of phase change of phase-change material,
CPFor phase-change material specific heat capacity, TmFor melting temperature, TiFor initial temperature.
2, battery temperature stablizes time calculating
Assuming that heat of the phase-change material in phase transformation is all from battery heat release:
Formula deformation, can obtain:
In formula, P is average heat release power of battery during phase-change material fusing, and t is that battery temperature stablizes the time.
The experiment of the application:
Experiment name: phase-change material tests the heat spreading function of battery
Experiment purpose: verifying is significant to the heat spreading function of battery using the technology of phase-transition heat-storage
Laboratory apparatus: 18650 lithium batteries (in the form of charger baby), HYD-7412 temperature controller, Pt100 adhesive type platinum electricity
Resistance (as temperature sensor), heater, copper conductor is several, loads (mobile phone)；
Experimentation:
1. connecting relevant apparatus, lithium battery gives load (mobile phone) power supply, and heater is heated to lithium battery, so that lithium battery
Phase transition temperature is reached, temperature controller is convenient for accurate temperature controlling, tool by the temperature of the lithium battery after temperature sensor detection heating
Body connection type is shown in Fig. 3；
2. setting relevant parameter, make 18650 lithium batteries to load discharge；
3. record terminated for 2 hours every ten minutes record temperature；
4. before being restored to experiment to battery temperature；
5. filling phase-change material (phase transition temperature is about 40 DEG C) between lithium battery, 2,3 are repeated；
Experimental result is shown in Fig. 4, experimental result is analyzed it is found that addition phase-change material radiates to battery, the holding of temperature has
Effect very outstanding.
The performance analysis of the application:
The specified charging times of one section 600 times, capacity is the lithium battery of 2Ah, when working at a temperature of 10 DEG C and 0 DEG C, meter
Calculate its because capacity reduce caused by energy loss, the charging times being converted into, reduction use number of days, as shown in table 1:
Table 1
| Average annual energy loss | Equivalent charging times | It reduces and uses number of days | |
| 10 DEG C (80 days) | 213120J | 7 times | 12 days |
| 0 DEG C (20 days) | 106560J | 4 times | 7 days |
According to related data, the 1 year the type compact lithium cell usage amount in China is 100,000,000 pieces, to the technology and use is not used
The technology battery carries out correlation data calculation, is fabricated to histogram, sees Fig. 5, Fig. 6:
It can be seen that, when we apply the compact lithium cell thermal management technology of phase-transition heat-storage using this, can have from table and figure
Effect prevents the loss and consumption of electric energy, it can reduces charging times, had both reduced the consumption of electric energy, and played energy-conserving action, and prolong
The service life of long battery, it is possible to reduce environmental emission reduction is played the role of in the discharge of battery, has important economic benefit and society
It can benefit.
The innovative point and advantage and application prospect of the application:
1, innovative point:
1) phase-change material is combined with battery thermal management, effectively reduces power consumption, while opening up new application neck
Domain.
2) phase-change material is filled using microencapsulation form, phase-change material heat transfer property is improved, so that heat is sufficiently absorbed
With utilization.
3) composite phase-change material accumulation of heat is used, high/low temperature situation is taken into account, temperature is made to be maintained at 20-40 DEG C for a long time.
2, advantage:
1) temperature fluctuation when using battery is small, and battery temperature is for a long time in optimum range.
2) it prevents battery temperature is excessively high to cause the safety issues such as electrolyte vaporization gas leakage, case swells, reduces to battery
Damage, extend the service life of battery.
3) prevent battery temperature is too low battery capacity is caused to reduce, service performance decline, charging times increase the problems such as, have
Effect reduces the loss of electric energy, extends the time of charging cycle, saves electric energy.
4) battery extends, and reduces the discharge of battery, great to environment protection significance.
5) structure is simple, and cost is relatively low, and does not consume the additional energy.
3, application prospect
Battery is extensive using field, from ordinary populace life to high-grade, precision and advanced field, therefore battery safety and performance just
It is particularly important, this technology with principle may extend to battery of mobile phone, computer battery etc. compared in compact battery, can also be with tradition
Cooling system is used in combination, and is applied to electric automobile power battery field；For from structure, cost, using the dress of the technology
It is simple to set structure, manufacture craft difficulty is lower；Cost is relatively low, also bigger to market promotion prospect.
Claims (10)
1. a kind of battery using phase-transition heat-storage, it is characterised in that: the battery includes shell and several cell batteries, in shell
It is provided with metal block, several mounting grooves convenient for cell batteries installation are provided on metal block, are set between metal block and shell
It is equipped with for accumulation of heat and exothermic phase transformation filled layer, phase transformation filled layer includes several microcapsules, and phase transformation material is provided in microcapsules
Material.
2. the battery according to claim 1 using phase-transition heat-storage, it is characterised in that: be provided with just at the top of the shell
In the opening of cell batteries installation, opening is sealed by upper cover, be additionally provided on upper lid positive electrode convenient for power output with
The anode conducting of negative electrode, positive electrode and cell batteries, negative electrode are connected with the cathode of cell batteries.
3. the battery according to claim 1 using phase-transition heat-storage, it is characterised in that: the bottom of the metal block is provided with
At least two convex block, outer casing bottom are provided with the groove with convex block cooperation, and the height of convex block is greater than the depth of groove.
4. the battery according to claim 1 using phase-transition heat-storage, it is characterised in that: the microcapsules include that quantity is equal
High temperature microcapsules and low temperature microcapsules, the phase-change material that phase transition temperature is 40 DEG C, the micro- glue of low temperature are provided in high temperature microcapsules
The intracapsular phase-change material for being provided with phase transition temperature and being 20 DEG C.
5. the battery according to claim 4 using phase-transition heat-storage, it is characterised in that: the high temperature microcapsules and low temperature are micro-
Capsule is successively spaced setting.
6. the battery according to claim 1 using phase-transition heat-storage, it is characterised in that: several cell batteries series connection
Or it is arranged in parallel.
7. the battery according to claim 1 using phase-transition heat-storage, it is characterised in that: the phase-change material is phase-change wax.
8. the battery according to claim 1 using phase-transition heat-storage, it is characterised in that: the cell batteries are lithium electricity
Pond, metal block are aluminium block.
9. the battery according to claim 1 using phase-transition heat-storage, it is characterised in that: the shell and metal block are in long
Cube shape, cell batteries and mounting groove are cylindrical.
10. the battery according to claim 1 using phase-transition heat-storage, it is characterised in that: be provided on the inside of the shell
Prevent the insulating layer of heat loss.
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| CN201920165316.4U CN209544556U (en) | 2019-01-30 | 2019-01-30 | Battery applying phase change heat storage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117199671A (en) * | 2023-11-02 | 2023-12-08 | 中国华能集团清洁能源技术研究院有限公司 | Design method of phase-change flame-retardant component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117199671A (en) * | 2023-11-02 | 2023-12-08 | 中国华能集团清洁能源技术研究院有限公司 | Design method of phase-change flame-retardant component |
| CN117199671B (en) * | 2023-11-02 | 2024-02-02 | 中国华能集团清洁能源技术研究院有限公司 | Design method of phase-change flame-retardant component |
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