CN105914427A - Average-temperature structure applied to energy storage device and device - Google Patents
Average-temperature structure applied to energy storage device and device Download PDFInfo
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- CN105914427A CN105914427A CN201610451141.4A CN201610451141A CN105914427A CN 105914427 A CN105914427 A CN 105914427A CN 201610451141 A CN201610451141 A CN 201610451141A CN 105914427 A CN105914427 A CN 105914427A
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- average
- heat
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- temperature
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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
- H01M10/60—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
-
- 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
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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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
Abstract
The invention discloses an average-temperature structure applied to an energy storage device. The average-temperature structure comprises an average-temperature film, wherein the average-temperature film continuously extends on a selected plane or curved surface along the selected direction, and is in contact with at least local surfaces of battery cells in the energy storage device (for example, a lithium battery pack) in sequence; the average-temperature film comprises a heat-conducting layer with extremely good heat transfer property; and the heat-conducting layer continuously extends along the selected direction and can be tightly connected with the energy storage device. The invention further discloses a device comprising the average-temperature structure. By the average-temperature structure and the device, the temperature differences among the battery cells in the energy storage device can be effectively reduced to reach the ''average-temperature'' effect; the battery cells in the energy storage device can be quickly heated in a low-temperature environment in a balanced manner; heat generated by the battery cells in the energy storage device can also be timely emitted; and the working performance and the safety are prevented from being affected by an over-high temperature of each battery cell.
Description
Technical field
The present invention be more particularly directed to a kind of average-temperature structure being applied to the energy storage devices such as lithium battery group, belong to new energy field.
Background technology
In recent years, electric automobile has obtained quick development under the promotion of national governments and automaker, wherein, pure electronic
Automobile becomes the important development direction of electric automobile so that it can really realize " zero-emission ".Lithium ion battery relies on its excellent property
The ideal power source of New Generation of Electric Vehicle can be become, it have lightweight, energy storage is big, power is big, pollution-free, also without secondary
The advantage such as pollution, life-span length, self discharge coefficient are little, is ideal car battery.
Lithium ion battery in use can produce heat because of internal resistance reason, thus causes battery core to produce bigger temperature rise.Due to
In set of cells, battery core quantity is many, dense arrangement, is only positioned at the battery core outside set of cells and is easily cooled down by outside air, and internal electricity
Core because lacking and the contacting of outside air, radiating effect extreme difference, often form over 5 DEG C compared with the battery core in outside in set of cells
Above temperature rise, brings harm greatly to the use of battery core.The solution of present stage is: (1) installs micro-in set of cells
Type fan carries out forced convertion, and due to limited space in set of cells, even temperature effect is the most undesirable；(2) add below set of cells
Circulation fluid is lowered the temperature by refrigerator again, and effect is general and has a strong impact on the structural compactness of battery bag.Especially in high temperature summer, lithium
The heterogeneity temperature rise of ion battery has had a strong impact on the use of lithium ion battery.
Therefore industry urgently develop a kind of can the method for temperature uniformity of each battery core of lithium battery group such as Effective Regulation dynamic lithium battery,
Nationality, to extend its range of application, promotes its performance and extends its service life.
Summary of the invention
Present invention is primarily targeted at a kind of average-temperature structure being applied to energy storage device of offer and device, to overcome in prior art
Deficiency.
For realizing aforementioned invention purpose, the technical solution used in the present invention includes:
Embodiments providing a class and be applied to the average-temperature structure of energy storage device, comprising: samming film, it is in selected plane
Or extend continuously along preferential direction on curved surface, and at least local surfaces with each battery core in energy storage device contacts successively；Described
Samming film includes the heat-conducting layer extended continuously along described preferential direction.
Further, described heat-conducting layer has splendid heat conductivility, and is in close contact with described energy storage device.
Further, at least on described preferential direction, the heat conductivity of described heat-conducting layer, at more than 0.1W/mK, preferably exists
More than 10W/mK, further preferably at more than 100W/mK, particularly preferably at more than 500W/mK.
Further, described samming film is flexible resistance to bending structure (bends and do not affect performance more than million times), has ultra-thin simultaneously
Feature (thickness is 1 μm～50 μm or 10 μm～1000 μm), be applied to the energy storage devices such as Li-ion batteries piles and do not account for
Use space.
Further, described samming film has the most all heat effects, and even temperature effect is notable, and in can controlling energy storage device, temperature rise exists
Within 5 DEG C, and will not lose efficacy because of electric power or mechanical breakdown.
Further, described samming film may also include the heating element heater being combined with heat-conducting layer, and described heat-conducting layer is at least distributed in described
Between heating element heater and described energy storage device.This kind of samming film can not only solve temperature rise heterogeneity problem during sky heat, and can solve
Lithium ion battery idle problem during low temperature.
The embodiment of the present invention additionally provides a kind of device, and it comprises energy storage device and the described samming knot being applied to energy storage device
Structure.
Further, described device also includes the forced cooling equipment coordinated with energy storage device, such as in peripheries such as lithium battery groups
The forced heat radiation equipment such as the fan set up, nationality is to distribute the heat within energy storage device, thus realizes overall homogeneous cooling-down effect.
Compared with prior art, the invention have the advantages that be there is heat-conducting layer and the heating element heater of good heat transfer capacity by employing
Form samming film Deng combination, and use each battery core in the energy storage devices such as this samming film and lithium battery group to contact cooperation, can be effective
Reduce the temperature contrast between each battery core in energy storage device, i.e. reach the effect of " samming ", and, can be to storage in low temperature environment
Quick, the heating of equilibrium of each battery core in energy device, it is also possible to the heat that each battery core in energy storage device produces is distributed in time, anti-
Stop battery core temperature too high and affect its service behaviour and safety.
Accompanying drawing explanation
Fig. 1 a is a kind of samming membrane structure schematic diagram in the present invention one exemplary embodiments；
Fig. 1 b is another kind of samming membrane structure schematic diagram in the present invention one exemplary embodiments；
Fig. 2 is one of a kind of samming film application schematic diagram in dynamic lithium battery in the present invention one exemplary embodiments；
Fig. 3 is in the present invention one exemplary embodiments the two of a kind of samming film application schematic diagram in dynamic lithium battery；
Fig. 4 is in the present invention one exemplary embodiments the three of a kind of samming film application schematic diagram in dynamic lithium battery；
Fig. 5 is in the present invention one exemplary embodiments the four of a kind of samming film application schematic diagram in dynamic lithium battery；
Fig. 6 is in the present invention one exemplary embodiments the five of a kind of samming film application schematic diagram in dynamic lithium battery；
Fig. 7 is in the present invention one exemplary embodiments the six of a kind of samming film application schematic diagram in dynamic lithium battery；
Description of reference numerals: samming film 10, heating film 11, heat-conducting layer 12, power lithium cell electric core 21.
Detailed description of the invention
In view of deficiency of the prior art, inventor, through studying for a long period of time and putting into practice in a large number, is proposed the technical side of the present invention
Case, will be further explained this technical scheme, its implementation process and principle etc. as follows.
One aspect of the embodiment of the present invention provides a class and is applied to energy storage device (the lithium battery group such as such as dynamic lithium battery)
Average-temperature structure, comprising:
Samming film, it extends continuously along preferential direction in selected plane or curved surface, and successively with each battery core in energy storage device
At least local surfaces contacts；
Wherein, described samming film includes the heat-conducting layer extended continuously along described preferential direction.
Further, described samming film has ultra-thin and flexible feature, and thickness is 1 μm～50 μm or 10 μm～1000 μm,
Bend and do not affect performance more than million times, be applied to Li-ion batteries piles and be not take up space.
Further, described samming film has the most all heat effects, and even temperature effect is notable, and in can controlling module, temperature rise is at 5 DEG C
Within, and will not lose efficacy because of electric power or mechanical breakdown.
Further, described heat-conducting layer is preferably formed by the material with good heat conductive performance.Such as, at least described selected side
Upwards, the heat conductivity of described heat-conducting layer is at more than 0.1W/mK, preferably at more than 10W/mK, further preferably 100
More than W/mK, particularly preferably at more than 500W/mK.
Further, the thickness of described heat-conducting layer is 1 μm～1000 μm, preferably 1 μm～50 μm, or is preferably
10 μm～1000 μm.
In some embodiments, described samming film also includes that the heating element heater being combined with heat-conducting layer, described heat-conducting layer are at least distributed
Between described heating element heater and described energy storage device.
Further, described samming film can in set heating element heater, this heating element heater side connect described heat-conducting layer.Implement at some
In scheme, it is possible to be all connected with heat-conducting layer in heating element heater both sides, described heating element heater extends continuously along described preferential direction, and point
Between cloth heat-conducting layer.
Further, described in set the samming film of heating element heater, temperature rise heterogeneity problem during sky heat can not only be solved, and can solve
Certainly lithium ion battery not work problem during low temperature.
Wherein, described heating element heater can be planar thermal source, wire thermal source (such as heating cable etc.), can also be point-like heat source,
It can be continuous distribution, it is also possible to be intervally arranged.
In some embodiments, described heating element heater uses heating film, and at least at described heating film and described energy storage device
An adjacent side surface is covered with heat-conducting layer.
Further, it is adaptable to the heating film of the present invention can be face heating film, it is also possible to for non-face heating film, can be low electricity
Pressure heating film (such as driving voltage can be at below 60V), it is also possible to for high voltage heating film；Can be flexible heater film,
It can also be inflexibility heating film.
More preferred, described heating film back to both side surface be all covered with described heat-conducting layer.
Further, described heating film includes resistance wire electric heating film, PTC (critesistor) electric heating film, carbon fiber or carbon
Any in fiber composite electric heating film, graphite and/or Graphene electric heating film, CNT electric heating film, ITO electric heating film
One or more kinds of combinations, but it is not limited to this.
Wherein, described graphite electric heating film can be artificial graphite heating film, and it can be the product after PI film carbonized graphite,
Product after can also rolling for expanded graphite.
Wherein, the product after described Graphene heating film can be graphene dispersion coating, it is also possible to for the product of CVD growth；
More preferred, described heating film is selected from electric heating film based on material with carbon element, and described material with carbon element is selected from CNT and/or stone
Ink alkene, it is of course possible to being carbon fiber etc., this type of electric heating film based on material with carbon element has under low driving voltage characteristics such as being rapidly heated,
Energy-saving safe.
Further, described heat-conducting layer is selected from fin and/or heat conducting coating.
In some embodiments, any in graphite heat radiation fin, Graphene fin, the metal fin of described fin
One or more combination, preferably graphite heat radiation fin or Graphene fin.
Wherein, the thickness of described fin is preferably 10 μm～1000 μm.
Further, described graphite heat radiation fin or Graphene fin have fabulous heat conductivity, and its heat conductivity is
500～2000W/mK.
Further, the heat conductivity of described metal fin is 100～500W/mK.
Wherein, described metal fin preferably uses metal forming, such as Copper Foil, aluminium foil etc..
In some embodiments, the thickness of described heat conducting coating is preferably 1 μm～50 μm.
In some embodiments, the heat conductivity of described heat conducting coating is preferably 0.1～10W/mK.
In some embodiments, described fin can be combined with heating element heater by glue-line.Such as foregoing graphites fin/stone
Ink alkene fin, metal fin (Copper Foil, aluminium foil) etc. can be incorporated into heating film surface by glue-line etc..
Wherein, the composition material of described glue-line can be epoxy adhesive, elastic resin (such as rubber elastomer), it is also possible to
For any one in epoxy resin, acrylic resin, polyurethane resin, silica column or two or more combinations, but do not limit
In this.
In some embodiments, described heat conducting coating can at least one mode by printing, be coated with, spraying, in spin coating
It is formed at heater element surface.
Further, described heat conducting coating can be mainly by heatproof high molecule material and the heat conduction being scattered in described macromolecular material
Powder body forms.
Wherein, the temperature tolerance of described heatproof high molecule material is preferably 150 DEG C～300 DEG C.Such as, described heatproof high molecule material
Can be epoxy adhesive, elastic resin (such as rubber elastomer), it is also possible to for epoxy resin, acrylic resin, poly-ammonia
Any one or two or more combination in ester resin, silica column, polyimides, but it is not limited to this；
Wherein, the particle diameter of described conduction powder is preferably 5nm～5 μm.
Wherein, described heat conducting coating can comprise 10～90wt% conduction powder.
Wherein, described conduction powder the most certainly but is not limited to this aluminium oxide, boron nitride, aluminium nitride, Nano diamond, antioxygen
Change one or more the combination in copper powder, aluminium powder.
In some embodiments, described heat-conducting layer is also covered with insulating barrier.
More preferred, the thickness of described insulating barrier is 0.1～5 μm.
Further, described insulating barrier at least one mode by printing, be coated with, spraying, in spin coating can be formed at heat conduction
Layer surface.
In some embodiments, described energy storage device comprises the two or more battery core of closely arrangement, outside this two or more battery core
At least regional area of wall and/or upper surface and/or lower surface contacts with described samming film.
In some more specific embodiment, described average-temperature structure includes two samming films, and these two samming films set respectively
Be placed in described energy storage device back to both sides, and lateral surface with each battery core in energy storage device contacts respectively.
In some more specifically preferred embodiment, these two samming films all extend continuously along waveform curved surface, and respectively from
Energy storage device back to both sides the outer wall of each battery core is coated with, and cooperatively form structure fully wrapped around for each battery core outer wall.
In some more specifically embodiment, described samming film connects between the waveform curve each battery core in energy storage device
Continuous through, the most conformal be covered on the region that each battery core outer wall contacts with described samming film.
Further, described samming film is located in the shell of described energy storage device, and described samming film two ends are also solid with described shell
Fixed connection.
In some more preferred embodiment, described samming film also conducts heat with heat abstractor and/or refrigerating plant and is connected, so
Can be transferred out in time by heat energy too much in energy storage device by described samming film and be distributed, it is overheated to produce in preventing energy storage device
Phenomenon.
In some more preferred embodiment, the heater heat transfer that described samming film also can be peripheral with being located at energy storage device is even
Connect, so by described samming film, the heat that peripheral heater produces can be imported energy storage device, and be allowed at low temperature environment
In also can normally work.These heaters can be all kinds of common firing equipments.
Nationality is by the previous designs of the present invention, it is possible to use the heat-conducting layer with good heat conductive performance in samming film makes heat in energy storage
Rapid conduction in device, quickly eliminating the temperature contrast between each battery core (such as can be by between battery core each in dynamic lithium battery
Temperature gap controls below 5 DEG C), reach " samming " effect, it is to avoid cause because of the excessive temperature differentials between each battery core is a series of
Problem, and it is beneficial to promote extensively the applying in multiple environment such as dynamic lithium battery, such as: can utilize in low temperature environment all
Heating element heater in temperature film produces heat, and makes heat balance be distributed by heat-conducting layer, thus reach to each battery core basic synchronization,
The effect of equality of temperature heating；Or, heating element heater can be made in room temperature or hot environment to quit work, and utilize heat-conducting layer to store up
Heat in energy device is derived rapidly or each battery core carries out equilibrium cooling, prevents battery core temperature too high and affects its service behaviour
And safety.
Accordingly, another aspect of the embodiment of the present invention additionally provides a class device, and it comprises energy storage device and described answering
Average-temperature structure for energy storage device.Described device can be the device of the energy storage devices such as types of applications dynamic lithium battery, such as electricity
Motor-car, photographing unit, mobile phone, notebook computer etc., and it is not limited to this.
As follows will be in conjunction with the technical solution of the present invention is further explained the explanation of accompanying drawing and some exemplary embodiments.
Referring to shown in Fig. 1 a, the class samming film 10 in the present invention one typical embodiments can include heating film 11, described
Heating film 11 back to both sides can cover a heat-conducting layer 12 respectively.Certainly, refering to shown in Fig. 1 b, this typical case embodiment party
In case, a class samming film 13 includes heating film 11, can cover a heat-conducting layer 12 in the side of described heating film 11.
Wherein, described heating film 11 can use the heating film of any one material, form or the structure addressed above, it is preferred to use base
The heating film that the combination of any one or more in the heating film of material with carbon element, such as carbon fiber, CNT, Graphene is formed,
Particularly flexible heater film, it can be brought rapidly up at safe voltage (below 60V), and less generation electromagnetic wave etc., should
For during to the heating such as lithium battery, can be less to lithium battery or electronic device based on lithium battery etc. interferes and all right
There is relatively thin thickness.
Wherein, described heat-conducting layer 12 can use any one material, form or the structure addressed above, such as, can be that metal dissipates
Backing, graphite heat radiation fin, Graphene fin, can also be heat conducting coating etc..Preferably, Graphene fin can be selected
Etc. having the flexible conductive structure etc. of splendid heat conductivility, and it can also have relatively thin thickness.
Further, described samming film entirety can be the flexible membranous structure of bending resistance folding, and its integral thickness can be less, in order to
In coordinating densely arranged battery core, and the volume and weight of the energy storage device such as less increase or holding dynamic lithium battery, or can
With in the case of energy storage device original structure not being adjusted, only take up the most intrinsic idle space, thus be factory
Business is cost-effective.
The samming film (including but not limited to the samming film addressed in typical embodiment discussed above) of the present invention can take various forms with
The lithium batteries such as dynamic lithium battery assemble conjunction and form average-temperature structure, such as, and described samming film and the side of contact of battery core in lithium battery group
Formula includes the heating of battery core both sides, the heating of battery core side full-enclosed or the S type heating of battery core side etc..
Referring to Fig. 2 is a kind of samming film application state schematic diagram in dynamic lithium battery in first embodiment of the invention, wherein
Samming film 13 is placed in cylindrical battery core both sides, the thermal conductive surface (heat-conducting layer) of each samming film 13 and battery core 21 contacts side surfaces.?
In low temperature environment, after samming film 13 is energized, heating film heats up, and heat passes to each battery core the most rapidly by thermal conductive surface,
Reach homogeneous liter of using warming therapy effect of each battery core.And when dynamic lithium battery is overheated, then stop being energized to samming film 13, heat is by leading
Hot side uniformly outwards shifts and distributes rapidly, reaches the effect of the homogeneous cooling of each battery core.
Referring to Fig. 3 is a kind of samming film application state schematic diagram in dynamic lithium battery in second embodiment of the invention, wherein
Battery core 21 is cuboid, and samming film 13 is essentially identical with first embodiment with the fit system of battery core.
Referring to Fig. 4 is a kind of samming film application state schematic diagram in dynamic lithium battery in third embodiment of the invention, wherein
Samming film 10 passes between each cylindrical battery core along S type track, and wherein the thermal conductive surface (heat-conducting layer) of samming film 10 is by battery core
21 side wrap.In low temperature environment, after samming film 10 is energized, heating film heats up, and heat is the rapidest by thermal conductive surface
Pass to each battery core, reach homogeneous liter of using warming therapy effect of each battery core.And when dynamic lithium battery is overheated, then stop to samming film 10
Energising, heat uniformly by thermal conductive surface is outwards shifted and distributes rapidly, reaching the effect of the homogeneous cooling of each battery core.
Referring to Fig. 5 is a kind of samming film application state schematic diagram in dynamic lithium battery in fourth embodiment of the invention, wherein
Samming film 10 passes between each rectangle battery core along square waveform track, and wherein the thermal conductive surface (heat-conducting layer) of samming film 10 is by battery core
21 side wrap.In low temperature environment, after samming film 10 is energized, heating film heats up, and heat is the rapidest by thermal conductive surface
Pass to each battery core, reach homogeneous liter of using warming therapy effect of each battery core.And when dynamic lithium battery is overheated, then stop to samming film 10
Energising, heat uniformly by thermal conductive surface is outwards shifted and distributes rapidly, reaching the effect of the homogeneous cooling of each battery core.
Referring to Fig. 6 is a kind of samming film application state schematic diagram in dynamic lithium battery in fifth embodiment of the invention, wherein
Samming film 13 is placed in cylindrical battery core both sides, and the thermal conductive surface (heat-conducting layer) of two samming films 13 is coated with each battery core 21 side,
And cooperatively form structure fully wrapped around for each battery core outer wall between two samming films 13.In low temperature environment, to samming film 13
After energising, heating film heats up, and heat passes to each battery core the most rapidly by thermal conductive surface, reaches homogeneous liter of using warming therapy effect of each battery core
Really.And when dynamic lithium battery is overheated, then stop being energized to samming film 13, heat is by thermal conductive surface uniformly the most outwards transfer
With distribute, reach the effect of the homogeneous cooling of each battery core.
Referring to Fig. 7 is a kind of samming film application state schematic diagram in dynamic lithium battery in sixth embodiment of the invention, wherein
Samming film 13 is placed in rectangle battery core both sides, and the thermal conductive surface (heat-conducting layer) of two samming films 13 is coated with each battery core 21 side, and
Cooperatively form structure fully wrapped around for each battery core outer wall between two samming films 13.In low temperature environment, lead to samming film 13
After electricity, heating film heats up, and heat passes to each battery core the most rapidly by thermal conductive surface, reaches homogeneous liter of using warming therapy effect of each battery core.
And when dynamic lithium battery is overheated, then stop being energized to samming film 13, heat is uniformly the most outwards shifted by thermal conductive surface and dissipates
Send out, reach the effect of the homogeneous cooling of each battery core.
In foregoing embodiments, the main part of samming film can be placed in the housing of dynamic lithium battery with each battery core, and its two ends can
Fixing with described housing be connected, it is also possible to expose from housing, and with the auxiliary heat dissipation mechanism of peripheral hardware or refrigerating plant (air-cooled,
Liquid is cold or other device) connect.
Should be appreciated that above-described embodiment is only technology design and the feature of the explanation present invention, its object is to allow and be familiar with technique
Personage will appreciate that present disclosure and implement according to this, can not limit the scope of the invention with this.All according to this
The equivalence that bright spirit is made changes or modifies, and all should contain within protection scope of the present invention.
Claims (26)
1. it is applied to the average-temperature structure of energy storage device, it is characterised in that including:
Samming film, it extends continuously along preferential direction in selected plane or curved surface, and successively with each battery core in energy storage device
At least local surfaces contacts；
Described samming film includes the heat-conducting layer extended continuously along described preferential direction.
Average-temperature structure the most according to claim 1, it is characterised in that: at least on described preferential direction, described heat-conducting layer
Heat conductivity at more than 0.1W/mK, preferably at more than 10W/mK, further preferably at more than 100W/mK, the most excellent
It is selected in more than 500W/mK.
Average-temperature structure the most according to claim 1, it is characterised in that: the thickness of described heat-conducting layer is 1 μm～1000 μm,
It is preferably 1 μm～50 μm or 10 μm～1000 μm.
Average-temperature structure the most according to claim 1, it is characterised in that: described samming film also includes that be combined with heat-conducting layer adds
Thermal element, described heat-conducting layer is at least distributed between described heating element heater and described energy storage device.
Average-temperature structure the most according to claim 4, it is characterised in that: described heating element heater employing heating film, and at least
A side surface adjacent with described energy storage device at described heating film is covered with heat-conducting layer.
Average-temperature structure the most according to claim 5, it is characterised in that: described heating film back to both side surface all cover
It is provided with described heat-conducting layer.
Average-temperature structure the most according to claim 5, it is characterised in that: described heating film includes resistance wire electric heating film, heat
Quick resistance electric heating film, carbon fiber electrical heating film, carbon fiber composite electric heating film, graphite and/or Graphene electric heating film, carbon are received
Any one or two or more combination in mitron electric heating film, ITO electric heating film.
Average-temperature structure the most according to claim 7, it is characterised in that: described heating film is selected from electrical heating based on material with carbon element
Film, described material with carbon element is selected from CNT and/or Graphene.
9. according to the average-temperature structure according to any one of claim 1-6, it is characterised in that: described heat-conducting layer selected from fin and
/ or heat conducting coating.
Average-temperature structure the most according to claim 9, it is characterised in that: described fin is selected from graphite heat radiation fin, graphite
Any one or two or more combination, preferably graphite heat radiation fin or Graphene fin in alkene fin, metal fin；
And/or, the thickness of described fin is 10 μm～1000 μm.
11. average-temperature structures according to claim 10, it is characterised in that: described graphite heat radiation fin or Graphene fin
Heat conductivity is 500～2000W/mK, and the heat conductivity of described metal fin is 100～500W/mK；And/or, described gold
Belong to fin and include metal forming.
12. average-temperature structures according to claim 9, it is characterised in that: the thickness of described heat conducting coating is 1 μm～50 μm；
And/or, the heat conductivity of described heat conducting coating is 0.1～10W/mK.
13. average-temperature structures according to claim 9, it is characterised in that: described fin is tied with heating element heater by glue-line
Close, described glue-line at least any by epoxy resin, acrylic resin, polyurethane resin, silica column, rubber elastomer
One or more combination is formed.
14. average-temperature structures according to claim 9, it is characterised in that: described heat conducting coating be by printing, coating,
At least one mode in spraying, spin coating is formed at heater element surface.
15. average-temperature structures according to claim 14, it is characterised in that: described heat conducting coating is mainly by heatproof high molecule material
Material and the conduction powder composition being scattered in described macromolecular material, the temperature tolerance of wherein said heatproof high molecule material is
150 DEG C～300 DEG C, the particle diameter of described conduction powder is 5nm～5 μm, and described heat conducting coating comprises 10～90wt% conduction powder.
16. average-temperature structures according to claim 15, it is characterised in that: described heatproof high molecule material includes caoutchouc elasticity
In body, epoxy resin, acrylic resin, polyurethane resin, silica column, polyimides any one or two or more
Combination；And/or, described conduction powder includes aluminium oxide, boron nitride, aluminium nitride, Nano diamond, antioxidation copper powder, aluminium powder
In one or more combination.
17. average-temperature structures according to claim 1, it is characterised in that: also it is covered with insulating barrier on described heat-conducting layer.
18. average-temperature structures according to claim 17, it is characterised in that: the thickness of described insulating barrier is 0.1～5 μm；With
/ or, described insulating barrier is that at least one mode by printing, be coated with, spraying, in spin coating is formed at heat-conducting layer surface.
19. average-temperature structures according to claim 1, it is characterised in that: described energy storage device comprises two of closely arrangement
At least regional area of above battery core, the outer wall of this two or more battery core and/or upper surface and/or lower surface connects with described samming film
Touch.
20. average-temperature structures according to claim 19, it is characterised in that include two samming films, these two samming films are respectively
Be arranged at described energy storage device back to both sides, and lateral surface with each battery core in energy storage device contacts respectively.
21. average-temperature structures according to claim 20, it is characterised in that: these two samming films are all continuous along waveform curved surface
Extend, and respectively from energy storage device back to both sides the outer wall of each battery core is coated with, and cooperatively form complete for each battery core outer wall
The structure of full parcel.
22. average-temperature structures according to claim 19, it is characterised in that: described samming film fills along waveform curve in energy storage
Continue to pass through between each battery core put, the most conformal be covered on the region that each battery core outer wall contacts with described samming film.
23. average-temperature structures according to claim 1, it is characterised in that: described samming film is located at outside described energy storage device
In shell, and described samming film two ends are also fixed with described shell and are connected.
24. average-temperature structures according to claim 1, it is characterised in that: described samming film also fills with heating combined equipment, heat radiation
Put, at least one heat transfer in refrigerating plant connects.
25. average-temperature structures according to claim 1, it is characterised in that: described samming film is flexible bending resistance folding membrane structure,
Thickness is 1 μm～50 μm or 10 μm～1000 μm.
26. 1 kinds of devices, it is characterised in that comprise energy storage device and being applied to as according to any one of claim 1-25 is stored up
The average-temperature structure of energy device, described energy storage device includes lithium battery group.
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