CN104538698A - Temperature adjusting system for power lithium battery pack and power lithium battery pack - Google Patents
Temperature adjusting system for power lithium battery pack and power lithium battery pack Download PDFInfo
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- CN104538698A CN104538698A CN201410679664.5A CN201410679664A CN104538698A CN 104538698 A CN104538698 A CN 104538698A CN 201410679664 A CN201410679664 A CN 201410679664A CN 104538698 A CN104538698 A CN 104538698A
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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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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Abstract
The invention relates to a temperature adjusting system for a power lithium battery pack and the power lithium battery pack. The system comprises a battery box, phase-change energy-storage capsules and a plurality of heat pipes, wherein a plurality of lithium battery units are arranged in the battery box; the surfaces of all the lithium battery units are coated with thermal conductive coatings; the phase-change energy-storage capsules are filled into the battery box among the lithium battery units; the plurality of heat pipes are inserted among the lithium battery units; the circumferential wall of each heat pipe is in contact with the phase-change energy-storage capsules; and the two ends of each heat pipe are in tight contact with an upper cover and a bottom plate of the battery box respectively. A phase-change energy-storage material which has high heat-storage density and high chemical stability is integrated with a heat pipe technology, so that the heat-absorbing performance of the phase-change material can be brought into full play; the defects of low heat conductivity coefficient and low energy-storage rate of the phase-change material can be overcome; rapid response is available under the condition of high-power and large-current discharge of the power lithium battery pack; and the lithium battery pack is controlled to work safely in an optimal temperature range.
Description
Technical field
The present invention relates to the temperature control technology of dynamic lithium battery group, specifically dynamic lithium battery group humidity control system and there is the dynamic lithium battery group of humidity control system, it constitutes passive heat radiation thermoregulating system at the inner filling microcapsules of storing energy through phase change of the lithium battery module be made up of lithium cells connection in series-parallel and heat pipe.
Background technology
Dynamic lithium battery group energy density is high, low in the pollution of the environment, simple and convenient assembly, with low cost, be referred to as the future " heart " of electric motor car.But, Li-ion batteries piles is in real work, there is chemical reaction heat, Joule heat in charge and discharge process, particularly during high-power high-current electric discharge, cell temperature is too high, temperature in battery module can be caused seriously unbalanced, make battery module because of thermal runaway premature failure, even produce the serious consequence such as spontaneous combustion and blast.High-performance lithium ion power battery pack only has the effective thermal management system of outfit, makes it to guarantee suitable battery operating temperature, reduces the temperature contrast between each battery module, the operating state that guarantee power-supply system long-term safety is stable.
Traditional thermal management system mainly adopts forced ventilation, water-cooled and Natural Heat Convection three kinds, all there is certain applied defect: forced ventilation and water-cooled belong to active heat removal, this type systematic makes huge structure complicated due to needs blower fan, pump, pipeline and other annex, in addition, the air-cooled sealing that can affect lithium battery module encapsulation, water-cooled high cost and need corresponding insulation processing, they also consumes the energy content of battery, reduce actual power density and the energy density of battery, be not suitable for electric bicycle and other compact lithium cell power set.Natural Heat Convection belongs to passive heat radiation, and be the air cooling carrying out maximal efficiency by optimizing battery pack structure, the situation radiating effect in poor shape at cross-ventilation is very limited.
Novel lithium battery group thermal management system adopts phase-changing energy storage material (PCM).Phase-changing energy storage material (PCM) has latent heat of phase change high (namely heat storage capacity is strong), have extended cycle life, environmental protection, the advantage such as cheap, whole battery pack volume can be reduced in battery thermal Ore-controlling Role, reduce moving component, initiatively intelligent control is carried out to the heat in battery pack, and not needing consumes battery additional energy, is therefore the thermal management material that a class has broad prospect of application.But, because phase-changing energy storage material conductive coefficient is not high, charging rate is on the low side, when solving the situation as hot summer (>35 DEG C), the electric discharge of battery rapid large-current or high-power operation (accelerations, climbing etc.), still there is the delayed problem of heat radiation deficiency, temperature control in single phase-changing energy storage material thermal management system.
At present, domestic market extremely lacks the dynamic lithium battery thermal management system utilizing phase-change material, the method utilizing built-in small-sized heat pipe complex technique to promote thermal management systematic function further rarely has especially to be heard of, phase-change microcapsule material, small-sized heat pipe and lithium battery group novelty combine by the present invention, achieve the temperature automatic adjustment of dynamic lithium battery group.
Summary of the invention
The present invention aims to provide a kind of humidity control system of dynamic lithium battery group and has the dynamic lithium battery group of humidity control system, it in lithium battery, arrange microcapsules of storing energy through phase change and heat pipe forms humidity control system, phase-change microcapsule is filled in lithium battery pack module inside, small-sized heat pipe interts among phase-change microcapsule, phase-change material plays heat-absorbing action, heat pipe carries out flash heat transfer, thus be in optimum working temperature scope with passive radiating mode control lithium battery group, particularly under high-power and heavy-current discharge, effectively can reduce the maximum temperature of lithium battery cell unit.
The humidity control system of dynamic lithium battery group of the present invention, comprising: the Battery case of built-in some lithium cells; Be filled in the microcapsules of storing energy through phase change in Battery case, between described lithium cells; And be inserted in the some heat pipes between described lithium cells, the perisporium of each heat pipe all contacts with microcapsules of storing energy through phase change, the two ends of each heat pipe respectively with upper cover, the base plate close contact of Battery case.
The humidity control system of described dynamic lithium battery group is further at the surface of all lithium cells coating heat conducting coating, and each lithium cells is contacted with described microcapsules of storing energy through phase change by the heat conducting coating on its surface.The heat conducting coating accelerating heat transfer in the coating of battery unit surface can reduce thermal resistance, and the heat that battery is distributed passes to microcapsules of storing energy through phase change in time.
The operation principle of the humidity control system of described dynamic lithium battery group is: when lithium cells discharge and recharge, temperature raises, heat passes to microcapsules of storing energy through phase change by the heat conducting coating on lithium cells surface and heat pipe, when internal temperature reaches the transformation temperature of phase-change material in microcapsules of storing energy through phase change, phase-change material generation solid-liquid phase change, absorbs amount of heat; When the transformation temperature of ambient temperature lower than phase-change material in microcapsules of storing energy through phase change, latent heat of phase change released by phase-change material, and regulation and control internal temperature, by characteristic temperature-resistant during phase-change material phase transformation, makes lithium battery group internal temperature reach unanimity.Under lithium battery group is operated in high-power and big current, constant temperature raises, and waste heat is also delivered to Battery case shell by heat pipe, is discharged into external environment condition by cross-ventilation.
The concrete assembling scheme of humidity control system of described dynamic lithium battery group is as follows: will be coated with the lithium cells of heat conducting coating by connection in series-parallel composition lithium battery group, open the Battery case upper cover of assembling lithium battery group, lithium battery is assembled into Battery case inside, fixed position, clearance position toward Battery case inside fills microcapsules of storing energy through phase change, accumulation energy microcapsule to be phased has been filled, insert heat pipe, make the contacts baseplate of heat pipe one end and Battery case, cover the upper cover of Battery case, Battery case upper cover is contacted with the heat pipe other end, tighten the upper cover of screw self-contained battery casing, the two ends making each heat pipe respectively with the upper cover of Battery case, base plate close contact.
In described heat management system, described Battery case adopts aluminum alloy materials, and detachable upper cover unloads, and screw is fixed, and Battery case size is adjustable according to cell sizes.Battery case body wall material thickness is less than 5mm, highly be greater than lithium cells height 2-4cm, Battery case width and length can adjust according to the series-parallel number of lithium battery group, and be specially width and be greater than lithium battery group width 2-8cm, length is greater than lithium battery group length 2-8cm.
The heat conducting coating thickness being spread evenly across lithium cells case surface is 0.2-1mm.Heat conducting coating is the thermal interfacial material accelerating heat transfer, and be specially a kind of insulating heat conductive silicon grease, heat-conducting silicone grease conductive coefficient is greater than 0.9W/mk, and working temperature is-60 ~ 300 DEG C, and electrical breakdown strength is greater than 8KV/mm.
Described microcapsules of storing energy through phase change range scale is 1-50 μm.Wherein phase transformation core part employing transition temperature range is the phase-change material of 20-50 DEG C, is specially one or more in hexadecane, n-octadecane, n-eicosane, phase change paraffin.Capsule shells material adopts a kind of non-corrosive insulating polymer material, is specially melamine resin, Lauxite, phenolic resins, carbamide resin, polystyrene, polyacrylate, gelatin, Arabic gum, silex glass etc.
Described heat pipe is normal temperature circular cross-section heat pipe, and heat pipe working temperature is at 25-200 DEG C.Heat pipe shell material is one or more in copper, aluminium, carbon steel, and working solution is one or more in methyl alcohol, water, acetone.Heat pipe external diameter is 6-10mm, belongs to small-sized heat pipe, and maximum thermal resistance coefficient is less than 0.08 DEG C/W, and heat pipe length is consistent with Battery case height, ensures upper cover, the base plate close contact of heat pipe two ends and Battery case.In assembling, insert that the mode of heat pipe can select solid matter to insert, dislocation is inserted, the quantity inserting heat pipe and inserted mode, lithium battery group connection in series-parallel number are relevant.
The present invention also provides a kind of dynamic lithium battery group with said temperature regulating system.This dynamic lithium battery group comprises: Battery case, is arranged at the some lithium cells in this casing, in Battery case, is also provided with humidity control system; This humidity control system comprises: be filled in the microcapsules of storing energy through phase change in Battery case, between described lithium cells; And be inserted in the some heat pipes between described lithium cells, the perisporium of each heat pipe all contacts with microcapsules of storing energy through phase change, the two ends of each heat pipe respectively with upper cover, the base plate close contact of lithium battery pack box body.
Described dynamic lithium battery group comprises the heat conducting coating coating all lithium cells surfaces further, and each lithium cells is contacted with described microcapsules of storing energy through phase change by the heat conducting coating on its surface.
The present invention is high by storage density, chemical stability good and lower-cost phase-changing energy storage material and hot pipe technique are integrated, the heat absorption capacity of phase-change material can not only be given full play to, and the defect that phase-change material conductive coefficient is not high, energy storage speed is on the low side can be made up, also can respond fast under, heavy-current discharge high-power in dynamic lithium battery group, control lithium battery group trouble free service in optimum temperature range.
Existing phase-change material heat management system, for solving phase-change material from solid-state to the setting problem of liquid state, adopts dividing plate, Cao Dao, separately spatial design more, or phase-change material is filled in skeleton support material, such complex structure, cost is high, is unfavorable for that system is assembled.The phase-changing energy storage material that the present invention adopts uses microcapsules encapsulation, and be of a size of 1-50 um, include phase-change material more than 50%, this yardstick can prevent phase-change material from revealing, and also increases its capacity of heat transmission.The solid-liquid phase change process of phase-change material all occurs in softgel shell, can not produce the problem that liquid overflows during liquefaction heat absorption, and the microcapsules that the present invention adopts insulate, non-corrosiveness, can directly fill.Remain setting in the phase-change microcapsule course of work, collapse can not occur in lithium battery casing, subside, dimensionally stable.
Existing phase-change material heat management system, because phase-change material cannot fully contact with lithium cells, inefficiency, there is hysteresis in heat absorption and temperature control.Phase-change microcapsule size of the present invention, at micron order, is specifically of a size of 1-50 um, and phase-change microcapsule is with Powdered filling in Battery case, and specific area is large, and fully can absorb heat, heat accumulation efficiency is high; The thermal interfacial material simultaneously adopting battery unit surface-coated to accelerate heat transfer reduces thermal resistance, and the heat that battery is distributed passes to phase-change microcapsule in time.
Existing phase-change material heat management system, the lithium battery group discharge scenario for (super rated power, super normal multiplying power discharging situation) under high-power, big current is considered few, or has just carried out the discharge test of short time.The present invention is by small-sized heat pipe and phase-change microcapsule compound, and heat pipe adds capacity of heat transmission, strengthens heat radiation, is conducive to reducing local temperature too high.The heat pipe thermal resistivity introduced is lower than 0.08 DEG C/W, not only increase the rate of heat transfer of heat management system entirety, and also in time amount of heat can be passed to Battery case shell under high-power, big current, really with passive radiating mode, heat management system is responded fast, effective temperature control.
The present invention assembles simply, raw material is easy to get, cost is controlled, both can be used for small-sized electric bicycle use dynamic lithium battery group, also can be used as auxiliary heat management system and is applied to the large-sized power such as electric automobile, work station lithium battery group.
Accompanying drawing explanation
Fig. 1 is the humidity control system schematic top plan view of embodiment one dynamic lithium battery group, and wherein upper cover is removed, and heat pipe solid matter inserts;
Fig. 2 is the humidity control system schematic top plan view of embodiment two dynamic lithium battery group, and wherein upper cover is removed, and heat pipe dislocation is inserted;
Fig. 3 is the maximum temperaturerise figure discharged under the different electric current of 48V dynamic lithium battery group;
Fig. 4 is the maximum temperaturerise figure discharged under 48V dynamic lithium battery group different capacity.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
embodiment one
As Fig. 1, the humidity control system of embodiment one dynamic lithium battery group utilizes built-in phase-change microcapsule and heat pipe combinedly realizes dynamic lithium battery group intelligent thermoregulating.This system comprises: Battery case 5; Be arranged at the some lithium cells 1 in Battery case 5, at the surface of lithium cells 1 coating heat conducting coating 2; Be filled in the microcapsules of storing energy through phase change 4 in Battery case 5, between described lithium cells 1, each lithium cells 1 is contacted with described microcapsules of storing energy through phase change 4 by the heat conducting coating 2 on its surface; And be inserted in the some heat pipes 3 between described lithium cells 1, the perisporium of each heat pipe 3 all contacts with microcapsules of storing energy through phase change 4, the two ends of each heat pipe 3 respectively with upper cover, the base plate close contact of Battery case 5.
Embodiment one system is applied in the dynamic lithium battery group of rated voltage 48V capacity 11Ah, and wherein lithium cells 1 adopts 18650 lithium cells of a kind of 3.7V; Heat conducting coating 2 adopts High thermal-conductive silicone grease, and conductive coefficient is 0.95W/mk; Heat pipe 3 adopts a kind of copper-methyl alcohol heat pipe, and the capsule core of microcapsules of storing energy through phase change 4 is the n-octadecane of phase transition temperature 27 DEG C, and capsule shells material is a kind of polyacrylate, and the material of Battery case 5 is aluminium alloy.
Embodiment one system assembling scheme is as follows: the heat-conducting silicone grease 2 by 65 joint lithium cells 1 surface coating conductive coefficients being 0.95W/mk, by 5 parallel connections 13, to be composed in series rated voltage be 48V capacity is the lithium battery group of 22Ah, put into Battery case 5, fixed position, clearance position toward Battery case 5 inside fills microcapsules of storing energy through phase change 4, accumulation energy microcapsule 4 to be phased is full of Battery case, solid matter inserts 48 copper-methyl alcohol heat pipe 3, make the contacts baseplate of heat pipe one end and Battery case, cover the upper cover of Battery case, Battery case upper cover is contacted with the heat pipe other end, tighten screw, the upper cover of self-contained battery casing, the two ends making each heat pipe 3 respectively with the upper cover of Battery case 5, base plate close contact.
Embodiment one the humidity control system maximum temperaturerise (black part) of discharging under being applied to the different electric current of 48V dynamic lithium battery group and the maximum temperaturerise (grey parts) of discharging under the different electric current of 48V dynamic lithium battery group of the traditional air cooling system of employing are to such as Fig. 3, when electric current is respectively 11A, 16.5 A, 22 A, adopts the maximum temperaturerise of this humidity control system dynamic lithium battery group than adopting air cooling system dynamic lithium battery group maximum temperaturerise and reduce by 9.5%, 9.3%, 15% respectively.The maximum temperaturerise (grey parts) of discharging under the 48V dynamic lithium battery group different capacity of the maximum temperaturerise (black part) that embodiment one humidity control system is discharged under being applied to 48V dynamic lithium battery group different capacity and the traditional air cooling system of employing is to such as Fig. 4, when power is respectively 350W, 450 W, 500W, adopts the maximum temperaturerise of this humidity control system dynamic lithium battery group than adopting air cooling system dynamic lithium battery group maximum temperaturerise and reduce by 12.7%, 13.7%, 13.5% respectively.Visible, adopt the inner maximum temperature of the dynamic lithium battery of this humidity control system to reduce obviously, this humidity control system can ensure that dynamic lithium battery is used safely in high-power, heavy-current discharge situation.
embodiment two
Fig. 2 is the humidity control system schematic top plan view of embodiment two dynamic lithium battery group.Wherein, 5 is Battery case, 1 is lithium cells, 2 for being coated on the heat conducting coating on lithium cells 1 surface, 3 for intert in microcapsules of storing energy through phase change 4 and with the upper cover of Battery case 5, the heat pipe of base plate close contact, 4 for being filled in the microcapsules of storing energy through phase change in Battery case 5, between lithium cells 1.
Embodiment two system is applied in the dynamic lithium battery group of rated voltage 48V capacity 11Ah, wherein lithium cells 1 adopts 18650 lithium cells of a kind of 3.7V, heat conducting coating 2 adopts a kind of High thermal-conductive silicone grease, conductive coefficient is 0.95W/mk, heat pipe 3 adopts a kind of copper-methyl alcohol heat pipe, the capsule core of microcapsules of storing energy through phase change 4 is the n-octadecane of phase transition temperature 27 DEG C, and capsule shells material is a kind of polyacrylate, and the material of Battery case 5 is aluminium alloy.
Embodiment two system assembling scheme is as follows: the heat-conducting silicone grease 2 by 65 joint lithium cells 1 surface coating conductive coefficients being 0.95W/mk, by 5 parallel connections 13, to be composed in series rated voltage be 48V capacity is the lithium battery group of 22Ah, put into Battery case 5, fixed position, clearance position toward Battery case 5 inside fills microcapsules of storing energy through phase change 4, accumulation energy microcapsule 4 to be phased is full of casing, dislocation insertion 24 copper-methyl alcohol heat pipe 3, make the contacts baseplate of heat pipe one end and casing, cover the upper cover of Battery case, the upper cover of Battery case is contacted with the heat pipe other end, tighten screw, self-contained battery box cover, the two ends making each heat pipe 3 respectively with the upper cover of Battery case 5, base plate close contact.
embodiment three
With reference to Fig. 1, the basic layout of humidity control system structure of embodiment three dynamic lithium battery group is with embodiment one.Wherein, 5 is Battery case, 1 is lithium cells, 2 for being coated on the heat conducting coating on lithium cells 1 surface, 3 for intert in microcapsules of storing energy through phase change and with the upper cover of Battery case 5, the heat pipe of contacts baseplate, 4 for being filled in the microcapsules of storing energy through phase change in Battery case 5, between lithium cells 1.
Embodiment three system is applied in the dynamic lithium battery group of rated voltage 32V capacity 11Ah, and wherein lithium cells 1 adopts 18650 lithium cells of a kind of 3.7V; Heat conducting coating 2 adopts a kind of High thermal-conductive silicone grease, and conductive coefficient is 1.2W/mk.Heat pipe 3 adopts a kind of carbon steel-water heat pipe, and the capsule core of microcapsules of storing energy through phase change 4 is the hexadecane of phase transition temperature 20 DEG C, and capsule shells material is a kind of polyacrylate, and the material of Battery case 5 is aluminium alloy.
The concrete assembling scheme of embodiment three system is as follows: it is the heat-conducting silicone grease of 1.2W/mk that 45 joint lithium cells surfaces are coated with conductive coefficients, by 5 parallel connections 9, to be composed in series rated voltage be 32V capacity is the lithium battery group of 11Ah, put into battery case body 5, fixed position, clearance position toward Battery case 5 inside fills microcapsules of storing energy through phase change 4, accumulation energy microcapsule to be phased is full of casing, solid matter inserts 32 carbon steel-water heat pipes 3, make the contacts baseplate of heat pipe one end and casing, cover Battery case upper cover, the upper cover of Battery case is contacted with the heat pipe other end, tighten screw, fixing lithium battery pack box body upper cover, the two ends making each heat pipe 3 respectively with the upper cover of Battery case 5, base plate close contact.
example four
With reference to Fig. 2, the basic layout of humidity control system structure of embodiment four dynamic lithium battery group is with embodiment two.Wherein, 5 is Battery case, 1 is lithium cells, 2 for being coated on the heat conducting coating on lithium cells 1 surface, 3 for intert in microcapsules of storing energy through phase change and with the upper cover of Battery case 5, the heat pipe of contacts baseplate, 4 for being filled in the microcapsules of storing energy through phase change in Battery case 5, between lithium cells 1.
Embodiment four system is applied in the dynamic lithium battery group of rated voltage 32V capacity 11Ah, wherein lithium cells 1 adopts 18650 lithium cells of a kind of 3.7V, heat conducting coating 2 adopts a kind of High thermal-conductive silicone grease, conductive coefficient is 1.2W/mk, heat pipe 3 adopts a kind of carbon steel-water heat pipe, the capsule core of microcapsules of storing energy through phase change 4 is the hexadecane of phase transition temperature 20 DEG C, and capsule shells material is a kind of polyacrylate, and the material of Battery case 5 is aluminium alloy.
The concrete assembling scheme of embodiment four system is as follows: it is the heat-conducting silicone grease of 1.2W/mk that 45 joint lithium cells surfaces are coated with conductive coefficients, by 5 parallel connections 9, to be composed in series rated voltage be 32V capacity is the lithium battery group of 11Ah, put into Battery case 5, fixed position, clearance position toward Battery case inside fills microcapsules of storing energy through phase change 4, accumulation energy microcapsule to be phased is full of Battery case, dislocation insertion 16 carbon steel-water heat pipes 3, make the contacts baseplate of heat pipe one end and Battery case, cover the upper cover of Battery case, the upper cover of Battery case is contacted with the heat pipe other end, tighten screw, self-contained battery box cover, the two ends making each heat pipe 3 respectively with the upper cover of Battery case 5, base plate close contact.
Claims (10)
1. a humidity control system for dynamic lithium battery group, comprises the Battery case of built-in some lithium cells, it is characterized in that comprising further:
Be filled in the microcapsules of storing energy through phase change in Battery case, between described lithium cells; And be inserted in the some heat pipes between described lithium cells, the perisporium of each heat pipe all contacts with microcapsules of storing energy through phase change, the two ends of each heat pipe respectively with upper cover, the base plate close contact of Battery case.
2. humidity control system according to claim 1, is characterized in that, the surface of described lithium cells is coated with heat conducting coating, and each lithium cells is contacted with described microcapsules of storing energy through phase change by the heat conducting coating on its surface.
3. humidity control system according to claim 2, is characterized in that, the thickness of described heat conducting coating is 0.2-1mm.
4. the humidity control system according to Claims 2 or 3, is characterized in that, described heat conducting coating is insulating heat conductive silicon grease layer.
5. humidity control system according to claim 1 and 2, is characterized in that, the external diameter of described heat pipe is 6-10mm.
6. humidity control system according to claim 1 and 2, is characterized in that, described heat pipe to be working temperature the be normal temperature circular cross-section heat pipe of 25-200 DEG C.
7. humidity control system according to claim 1 and 2, is characterized in that, described microcapsules of storing energy through phase change yardstick is 1-50 μm, and wherein the phase transition temperature of phase transformation core part is 20-50 DEG C, and capsule shells is insulating polymer polymer shell.
8. humidity control system according to claim 7, is characterized in that, described phase transformation core part is one or more in hexadecane, n-octadecane, n-eicosane, phase change paraffin.
9. there is the dynamic lithium battery group of humidity control system, comprise Battery case, be arranged at the some lithium cells in this casing, it is characterized in that also being provided with humidity control system in Battery case; This humidity control system comprises: be filled in the microcapsules of storing energy through phase change in Battery case, between described lithium cells; And be inserted in the some heat pipes between described lithium cells, the perisporium of each heat pipe all contacts with microcapsules of storing energy through phase change, the two ends of each heat pipe respectively with upper cover, the base plate close contact of lithium battery pack box body.
10. dynamic lithium battery group according to claim 9, it is characterized in that described humidity control system comprises the heat conducting coating coating described lithium cells surface further, each lithium cells is contacted with described microcapsules of storing energy through phase change by the heat conducting coating on its surface.
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| CN109546260A (en) * | 2018-11-16 | 2019-03-29 | 中山大学 | A kind of novel thermal transfer devices using heat pipe-PCM coupling thermal management technology |
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| CN110636749A (en) * | 2019-10-29 | 2019-12-31 | 苏州智博汇能电子科技股份有限公司 | Mobile communication outdoor integrated cabinet with temperature adjusting function and control method |
| WO2023065104A1 (en) * | 2021-10-19 | 2023-04-27 | 高柏科技股份有限公司 | Thermal interface material coating method for battery cell |
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| CN109546260A (en) * | 2018-11-16 | 2019-03-29 | 中山大学 | A kind of novel thermal transfer devices using heat pipe-PCM coupling thermal management technology |
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| WO2023065104A1 (en) * | 2021-10-19 | 2023-04-27 | 高柏科技股份有限公司 | Thermal interface material coating method for battery cell |
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