CN105742756A - Battery pack with radiating units - Google Patents
Battery pack with radiating units Download PDFInfo
- Publication number
- CN105742756A CN105742756A CN201610264640.2A CN201610264640A CN105742756A CN 105742756 A CN105742756 A CN 105742756A CN 201610264640 A CN201610264640 A CN 201610264640A CN 105742756 A CN105742756 A CN 105742756A
- Authority
- CN
- China
- Prior art keywords
- heat
- unit
- battery
- cells
- sink unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- 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
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
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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 relates to a battery pack with radiating units. A main body is the battery pack of a battery cell unit or a unit module (unit batteries) capable of being charged and discharged. The battery pack structurally comprises a battery pack module, wherein the battery pack module comprises one or more battery units; two surfaces, in the width direction, of each battery unit and the bottom parts of batteries are covered with the U-shaped radiating unit; the battery units are tightly attached together through the surfaces of the radiating units; the battery units are connected to form the battery pack; the surface of the battery pack is covered with the U-shaped radiating unit; and the radiating units take graphene and a graphene mixture thereof as heat conduction mediums, timely take away the heat generated in the battery charging and discharging processes and thoroughly avoid the phenomenon that the batteries are difficult to radiate in the high-rate charging and discharging processes. The battery pack is reasonable in structure, light and simple, solves the radiating problem of the batteries in the high-rate charging and discharging processes in the prior art under the condition of neglecting dimension and weight increase, improves the effective time of high-rate discharging of the batteries and prolongs the service lifetime of the batteries.
Description
Technical field
The present invention relates to the set of cells with heat-sink unit, more particularly relates to a kind of set of cells including battery unit and heat-sink unit, and lid layer heat-sink unit is covered in two faces of this battery unit width and bottom, forms U-shaped heat-sink unit；Each battery unit is arranged closely together composition set of cells by the heat-sink unit that its surface covers, lid layer fins is covered again bottom the outer face being with attached heat-sink unit of set of cells and set of cells, form big U-shaped heat-sink unit, it is in close contact by the heat-sink unit with each battery unit, the heat of cell internal is derived outside set of cells in time.
Background technology
At present, secondary cell cleans as one, light and Portable energy storage mode, it is widely used in automobile, electric motor car, model plane, on the power-equipments such as unmanned plane, generally according to its power using equipment and continuation of the journey demand, apply set of cells on it and be generally combined into, by series-parallel mode, the set of cells that power-equipment needs by one or more battery units.
Design and manufacture process limit due to its electronic equipment, set of cells size and weight when meeting electronic device power and continuation of the journey demand little as far as possible, set of cells generally assembles with highdensity stack manner.Therefore, during battery charging and discharging, particularly during high power discharge, set of cells produces substantial amounts of heat and cannot remove fast and effectively, due to heat build-up, each cell internal causes that its internal temperature rise differs greatly, each discharging regions speed of battery unit shows differ because of temperature rise difference, battery unit regional area discharges not exclusively or regional area occurred putting phenomenon, the discharge time causing battery unit shortens, owing to the long-term cycle characteristics showed due to its temperature contrast used in such a case between battery unit presents bigger difference, cause performance between each battery unit uneven, cause set of cells accelerated deterioration, battery performance sharply declines.Even there is on fire or blast.
At present, common processing mode adopts the cooling system of the coolant increasing air-cooled structure or employing flowable in set of cells periphery to be taken away by cell heat mostly, although this processing mode has certain effect, but the increase to set of cells volume and weight is also very huge, it is only applicable to fixed sources of energy station or on the not high equipment of weight or volume requirement, has significant limitation, and supporting cooling system cost is high, belong to types of customization, it is impossible to realize product versatility.
Therefore it is highly desirable to fundamentally solve the technology of the problems referred to above.
Summary of the invention
For above the deficiencies in the prior art and defect, it is an object of the invention to provide the set of cells with heat-sink unit.
It is an object of the invention to by realizing by the following technical solutions:
There is the set of cells of heat-sink unit, including battery unit and heat-sink unit, lid layer heat-sink unit module is covered in two faces of the width of each battery unit and bottom thereof, by the good thermal conductivity effect of radiating module, on the one hand battery unit each several part temperature rise is reached unanimity, on the other hand the heat of cell internal is derived in time outside set of cells by heat by the heat-sink unit with set of cells bottom battery unit, improve the cooling effectiveness of set of cells, the temperature making each battery unit of internal battery pack keeps consistent, avoid local temperature difference according to the problem that discharging efficiency is low and battery unit deterioration is accelerated.
Meanwhile, the heat-sink unit in described set of cells is the thin film that comparison is frivolous, has an enormous advantage in volume and weight, processing characteristics is good simultaneously, can arbitrarily cut according to the size and shape of set of cells or battery unit, improve motility and the versatility of design, reduce cost.
Simultaneously can according to the power demand of the equipment of use and space restriction, minitype motivation device battery group can directly have the set of cells of 2-24 stacks of cells, and large-scale power-equipment needs to use single or multiple set of cells to be connected to each other and constitutes large-scale set of cells.
Each battery unit can be secondary cell, for instance nickel metal hydride secondary battery or lithium lithium secondary battery, and lithium secondary is especially preferred, because lithium secondary battery has high-energy-density and high voltage.
Heat-sink unit is made up of Graphene or Graphene mixture, and Graphene mixture can be the metal nanoparticle compositions such as Graphene and copper, aluminum, silver.Graphene is particularly preferably because Graphene its there is good heat conductivity.
As the preferred technical solution of the present invention, its diaphragm of described heat-sink unit, structure is by graphene film or the graphene film that rolls for base material with the metal foil such as copper, aluminum, and thickness is 10 μm of 1cm of its thickness.
As the preferred technical solution of the present invention, described heat-sink unit is disjunctor U-shape structure after covering battery unit surface.
As the preferred technical solution of the present invention, described heat-sink unit covers battery unit width and face, three, bottom.
As the preferred technical solution of the present invention, when the battery unit of described covering heat-sink unit is combined into set of cells according to certain way, by the close contact combination of its heat-sink unit between each battery unit.
As the preferred technical solution of the present invention, described battery unit is combined into set of cells, and its structure is battery unit width and bottom direction covers the heat-sink unit that lid layer is U-shaped again.
Compared with prior art, in the present invention, heat-sink unit adopts graphene film diaphragm, due to its unique texture, even heat is distributed in two dimensional surface thus effective being shifted by heat, ensure that assembly works at the temperature born, it is readily processible to the membrane structure on applicable any surface simultaneously, there is good product versatility.By battery unit and set of cells being carried out covering heat-sink unit, battery is when identical high power discharge, adopt the set of cells of heat-sink unit than its temperature difference of set of cells 10～15 DEG C not adopting heat-sink unit, the battery power discharge time increases by 15～20% than original, the temperature homogeneity of each battery unit is good, and volume weight increase amount can be ignored, and has good practical application.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described with specific embodiment:
Fig. 1 is the structural representation that the present invention has the set of cells of heat-sink unit.
Fig. 2 is the battery unit structure schematic diagram that the present invention has the set of cells of heat-sink unit.
101, battery unit, 102, battery unit surface cover heat-sink unit, 103, battery surface cover heat-sink unit 103.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention being described in further detail, described specific embodiment only in order to explain the present invention, is not intended to limit the specific embodiment of the present invention.
Referring to Fig. 1 and Fig. 2, respectively the present invention has structural representation and the battery unit structure schematic diagram of the set of cells of heat-sink unit.This set of cells, including battery unit 101, the heat-sink unit 102 that battery unit surface covers, the heat-sink unit 103 that battery surface covers, the U-shaped structure of heat-sink unit 103 that this battery surface covers, being in close contact with the heat-sink unit 102 covered on battery unit 101, its width is consistent with the width of battery unit 101, and length is: battery unit height * 2+ battery unit thickness * n (n is the quantity of battery unit).
The described present invention has the heat-sink unit of high efficiency heat radiation, and its structure is by graphene film or the graphene film that rolls for base material with the metal foil such as copper, aluminum, and thickness is 10 μm～1cm of its thickness.
The described present invention has battery unit 101 surface of high efficiency heat radiation and covers heat-sink unit 102, the fully wrapped around covering in bottom of the heat-sink unit 102 two faces by battery unit 101 width and battery unit 101, U-shaped structure, its width is consistent with the width of battery unit 101, and length is: battery unit height * 2+ battery unit thickness.
Covering the battery unit 101 of heat-sink unit 102, by the face of ternary unit 102 width on each battery unit 101, close contact, according to the voltage after battery combination and capacity requirement.It is combined into set of cells.
Below to provide specific embodiment and comparative example conducting further description the present invention.
Embodiment set of cells makes
Taking model be P9043150 nominal capacity is 5000mAh, the polymer lithium ion battery cell of continuous discharge multiplying power 35C 12, its actual capacity is 5020～5050mAh, by the graphene film sheet that thickness is 30 μm, cut into the heat-sink unit sheet of 43*310mm specification, U-shaped for heat-sink unit sheet shape is adhered to two faces and the bottom of width, then in the set of cells 2 groups that 6 battery units are combined into arrangement mode 6S1P, lid layer heat-sink unit is covered again in the side (i.e. the width of electrochemical cell) of set of cells and bottom, it is of a size of 43*355mm, it is in close contact with the heat-sink unit on battery unit.
Comparative example set of cells makes
Choosing 12, the battery of class identical with embodiment group and state, battery unit surface and set of cells do not cover heat-sink unit, are assembled into the set of cells 2 groups of same size with the compound mode that embodiment is identical.
After combination, its size and weight are as shown in the table:
By in parallel to embodiment battery and two groups of comparative example battery to the test carrying out flying on the four axle plant protection unmanned planes that gross weight is 7kg, it is discharged to system improving warning cut-off (room temperature 26 DEG C), temperature after its flight, voltage, discharge time, data were as shown in the table:
The foregoing is only presently preferred embodiments of the present invention, be not used for limiting the practical range of the present invention；Every equivalence made according to the present invention changes and amendment, is all covered by the scope of claims of the present invention.
Claims (6)
1. there is the set of cells of heat-sink unit, including battery unit and heat-sink unit, described battery unit overlying lid layer heat-sink unit, both sides and the bottom of battery unit width are covered and form U-shaped heat-sink unit by described heat-sink unit, battery unit is combined into set of cells according to certain heat-sink unit close contact by width that puts in order, and is trapped among bottom a heat-sink unit and set of cells and the heat-sink unit in outside is coated with outside set of cells.
2. the set of cells with heat-sink unit according to claim 1, it is characterised in that: surface and the battery bottom of described battery unit width are covered by U-shaped heat-sink unit.
3. the set of cells with heat-sink unit according to claim 1, it is characterised in that: when being assembled into set of cells with the battery unit of U-shaped heat-sink unit, each battery unit is closely adjacent to arrangement by the heat-sink unit on its surface and forms set of cells together.
4. the set of cells with heat-sink unit according to claim 1, it is characterised in that: the heat conduction diaphragm that heat-sink unit is made up of Graphene, 10 μm ~ 1cm of its thickness.
5. the set of cells with heat-sink unit according to claim 1, it is characterised in that: the heat conduction diaphragm of heat-sink unit, its structure is by graphene film or the graphene film that rolls for base material with the metal foil such as copper, aluminum.
6. the set of cells with heat-sink unit according to claim 1, it is characterised in that: after battery unit is combined into set of cells, cover, at electrochemical cell width and bottom direction, the heat-sink unit that lid layer is U-shaped again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610264640.2A CN105742756A (en) | 2016-04-25 | 2016-04-25 | Battery pack with radiating units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610264640.2A CN105742756A (en) | 2016-04-25 | 2016-04-25 | Battery pack with radiating units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105742756A true CN105742756A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610264640.2A Pending CN105742756A (en) | 2016-04-25 | 2016-04-25 | Battery pack with radiating units |
Country Status (1)
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| CN (1) | CN105742756A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785205A (en) * | 2016-12-28 | 2017-05-31 | 镇江博昊科技有限公司 | A kind of copper-base graphite alkene composite radiating film and its battery of application |
| WO2018023219A1 (en) * | 2016-07-30 | 2018-02-08 | 肖丽芳 | Preparation method for pouch battery |
| CN110010995A (en) * | 2019-04-09 | 2019-07-12 | 华南理工大学 | A kind of battery pack thermal management system and its working method based on flat-plate heat pipe |
| CN114646040A (en) * | 2020-12-18 | 2022-06-21 | 北京泊松技术有限公司 | Unmanned aerial vehicle machine carries LED lamp heat abstractor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204348866U (en) * | 2015-01-26 | 2015-05-20 | 盐城师范学院 | A kind of radiator structure of energy-density lithium ion battery bag |
| CN105009321A (en) * | 2012-12-28 | 2015-10-28 | 约翰逊控制技术公司 | Polymerized lithium ion battery cells and modules with overmolded heat sinks |
| CN205159469U (en) * | 2015-12-09 | 2016-04-13 | 上汽大众汽车有限公司 | Heat conduction mechanism of battery module |
| CN205657144U (en) * | 2016-04-25 | 2016-10-19 | 珠海光环新能源科技有限公司 | Group battery with heat dissipation unit |
-
2016
- 2016-04-25 CN CN201610264640.2A patent/CN105742756A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105009321A (en) * | 2012-12-28 | 2015-10-28 | 约翰逊控制技术公司 | Polymerized lithium ion battery cells and modules with overmolded heat sinks |
| CN204348866U (en) * | 2015-01-26 | 2015-05-20 | 盐城师范学院 | A kind of radiator structure of energy-density lithium ion battery bag |
| CN205159469U (en) * | 2015-12-09 | 2016-04-13 | 上汽大众汽车有限公司 | Heat conduction mechanism of battery module |
| CN205657144U (en) * | 2016-04-25 | 2016-10-19 | 珠海光环新能源科技有限公司 | Group battery with heat dissipation unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018023219A1 (en) * | 2016-07-30 | 2018-02-08 | 肖丽芳 | Preparation method for pouch battery |
| CN106785205A (en) * | 2016-12-28 | 2017-05-31 | 镇江博昊科技有限公司 | A kind of copper-base graphite alkene composite radiating film and its battery of application |
| CN110010995A (en) * | 2019-04-09 | 2019-07-12 | 华南理工大学 | A kind of battery pack thermal management system and its working method based on flat-plate heat pipe |
| CN114646040A (en) * | 2020-12-18 | 2022-06-21 | 北京泊松技术有限公司 | Unmanned aerial vehicle machine carries LED lamp heat abstractor |
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Application publication date: 20160706 |