CN105990537A - Battery box structural material and production method thereof - Google Patents
Battery box structural material and production method thereof Download PDFInfo
- Publication number
- CN105990537A CN105990537A CN201510056925.2A CN201510056925A CN105990537A CN 105990537 A CN105990537 A CN 105990537A CN 201510056925 A CN201510056925 A CN 201510056925A CN 105990537 A CN105990537 A CN 105990537A
- Authority
- CN
- China
- Prior art keywords
- battery
- battery case
- structural material
- cooling
- box
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 238000001816 cooling Methods 0.000 claims abstract description 18
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 13
- 239000004917 carbon fiber Substances 0.000 claims abstract description 13
- 239000003822 epoxy resin Substances 0.000 claims abstract description 13
- 239000012782 phase change material Substances 0.000 claims abstract description 13
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052796 boron Inorganic materials 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 239000000110 cooling liquid Substances 0.000 claims abstract description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052709 silver Inorganic materials 0.000 claims abstract description 7
- 239000004332 silver Substances 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000006748 scratching Methods 0.000 claims description 2
- 230000002393 scratching effect Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000000178 monomer Substances 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- -1 plug (101) Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a structural material of a battery box of an electric vehicle and a production method thereof. The structural material is mainly composed of epoxy resin, boron fiber, carbon fiber, silver sand, and a phase-change material. A polymer composed of the above components is taken as a plastic casing of the battery box, an external layer of the casing is coated by a layer of silver sand, the casing contains a circular cooling pipeline, cooling liquid such as water or glycol is introduced into the pipeline according to practical requirement, and a part between the casing and a battery monomer is filled with the phase-change material. The structural material has the advantages of difficult corrosion, low density, insulation, high temperature resistance, fire resistance, high thermal conductivity, and low cost, can realize integral cooling of the battery of the electric vehicle, can satisfy uniformity of temperature between the battery monomers, compound epoxy resin with low density and high intensity and the cooling pipeline are in carbon fiber with high heat-conduction coefficient, volume and quality of the battery box is reduced, energy ratio of the electric vehicle is increased, and the driving mileage can be guaranteed.
Description
Technical field
This patent structural material relating to electric automobile battery box and preparation method thereof, a kind of battery case with excellent heat-conducting function, belong to power battery of electric vehicle field of heat management.
Background technology
The importance of the development and prosperity of electric automobile has been related on social environment and power saving, but the fast development how realizing electric automobile is society focus of attention.The key technology of restriction Development of Electric Vehicles is electric car body quality, the lifting of battery performance, the followed utilization of cell apparatus.The body quality of electric automobile the most heavily affects course continuation mileage and security performance, if under not affecting car quality condition, alleviating the much progress that body quality is Development of Electric Vehicles.But electric automobile battery box material is essentially all metal material on the market, its ratio is great, and perishable, causes industrialization problems.Therefore battery case structure new material is constantly researched and developed is necessary, and battery case structural material to improve be that the heat management of battery module has extremely important meaning to the lifting of battery performance.Electrokinetic cell is in running, and inside battery occurs violent chemical reaction, produces substantial amounts of heat, the gathering of heat will be caused as heat can not be given out timely and effectively, thus there will be leakage, venting, the phenomenon such as smoldering, therefore the heat problem of battery case is in the urgent need to address.
Summary of the invention
The purpose of this patent is effectively to alleviate the proportion of electric automobile battery box and realize cell apparatus entirety cooling under the most severe thermal environment, and can guarantee that the target of the homogeneity of temperature between each cell, and structural material of a kind of electric automobile battery box proposed and preparation method thereof.
Concrete technical scheme is that this patent structural material includes epoxy resin, boron fibre, carbon fiber, phase-change material, battery case casing, plug, silver sand, top cover of box, bolt, cooling circulating line, cell connector, battery cell, battery bag limited support, water pipe, wire hole.
Described epoxy resin and boron fibre composite construction have intensity, and hardness is the highest, the feature such as low-density, insulating properties.
Described Battery case framework by epoxy resin and boron fibre complex and additive with moulding by casting or the mode molding such as laminated into type.
In described Battery case, some battery cells and phase-change material use interference fit to use；Cell connector is used to be connected by battery cell by a graded according to actually required voltage, current requirements.
Cooling down circulating line bar number in described Battery case and structure can be arranged by actual demand, cooling liquid logical in pipeline is that water or ethylene glycol etc. are according to actually required cooling liquid.
This patent operation principle is: good with processability, and the attached carbon fiber battery tank surface after shaping in the way of moulding by casting of the epoxy resin containing boron fibre that structural strength is high, thickness is determined by actual requirement.Cooling circulating line it is disposed with inside carbon fiber.Cool down circulating line water flowing or ethylene glycol etc. according to actually required cooling liquid to take away the heat that the phase-change material being filled in Battery case is accumulated, it is achieved secondary dispels the heat.
This patent Battery case molding mainly uses moulding by casting mode, and its forming process parameter is easily controllable, it is possible to molding more complex structure, waters injection mo(u)lding subsequent processing operations less, effectively reduces cost.The layout of casing size and limited support can regulate according to the actual requirements, and flexibility ratio is bigger.
According to the science set of cells heat distribution that associated hot simulation-analysis software obtains, designer can determine that cooling pipe is arranged, more effective and science.Battery case waters injection mo(u)lding process control and motility ensure that more greatly the realization of this function.
Accompanying drawing explanation
Fig. 1 is the front cross-sectional view of the Battery case of the structural material of this patent electric automobile battery box and preparation method thereof.
Fig. 2 is the top view of the Battery case of the structural material of this patent electric automobile battery box and preparation method thereof.
Fig. 3 is the overall explosive view of the Battery case of the structural material of this patent electric automobile battery box and preparation method thereof.
Detailed description of the invention
Below embodiments of the present invention are specifically described.
As shown in Figure 1, Figure 2, Figure 3 shows, structural material of electric automobile battery box described in this patent and preparation method thereof is by compositions such as plug (101), silver husky (102), epoxy resin and boron fibre composite construction (103), carbon fiber (104), Battery case (105), top cover of box (106), bolt (107), water nozzle (108), cell connector (109), phase-change material (110), battery cell (111), battery bag limited support (112), cooling circulating line (113), circuit input/output terminal (114), flexible pipes (115).
Such as Fig. 1, Battery case (105) framework is formed by epoxy resin and boron fibre composite construction (103) and carbon fiber constructions.
Such as Fig. 1, described silver husky (102) is to be coated on the surface of epoxy resin and boron fibre composite construction (103), to prevent tank surface from scratching.
The thermal conductivity of described carbon fiber (104) is 200 285W/(m*K).
Such as Fig. 3, described battery cell (111) is fixed by the case lid set by top cover of box (106) inside protruding (107).
As in figure 2 it is shown, directly heat can be taken away rapidly and realizes secondary heat radiation with phase change material contacts with cooling circulating line (113) in the middle of Battery case.
Such as Fig. 2, the described cooling circulating line (113) internal layer in carbon fiber (104), box volume and quality can be saved, carry high energy ratio.
The cooling liquid of described cooling circulating line (113) is that water or ethylene glycol etc. are according to actually required cooling liquid.
Described water nozzle (108) is threadedly secured on Battery case, and owing to material processability is good, follow-up machining processes is few, and cost is effectively reduced.
Described phase-change material (110) uses the inorganic hydrated salt and graphite that latent heat of phase change is about 400J/g.
Described inorganic hydrated salt be matrix composite phase-change material in the mass fraction of graphite be about 25%.
This patent has the advantages that the epoxy resin that described Battery case structural material employing physical property is good, boron fibre, carbon fiber, and silver is husky, phase-change material.With epoxy resin, the Battery case after boron fibre, carbon fiber pouring molding has intensity, hardness, thermal conductivity height, the advantages such as proportion is little.Compared with the cooling water pipe of electric automobile on the market, this cooling water pipe is wrapped in inside Battery case, cost and volume are not only saved, and improve the energy ratio of electric automobile, directly and phase change material contacts can preferably take away the heat of accumulation to add upper hose, battery cell apparatus entirety cooling under the most severe thermal environment of electric automobile can be realized, temperature between each cell can be met again and keep balance, thus realize the prolongation of battery life.
Said structure material and manufacture method are this patent preferably embodiment; but the embodiment of this patent is also not restricted to the described embodiments; as changed the wherein position of parts, composition; or change the shape etc. of housing; the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine, simplify; all should be substitute mode and the technical scheme of equivalence, within being included in protection scope of the present invention.
Claims (7)
1. structural material of electric automobile battery box and preparation method thereof, it is characterized in that, this device includes plug, silver sand, epoxy resin and boron fibre complex, carbon fiber, Battery case, top cover of box, bolt, water nozzle, cell connector, phase-change material, battery cell, battery bag limited support, cooling circulating line, circuit input/output terminal, flexible pipe；Described top cover of box is to be bolted on battery box cover；Cooling down circulating line structure in described Battery case to arrange by actual demand, cooling liquid logical in pipeline is that water or ethylene glycol etc. are according to actually required cooling liquid.
2. the structural material of battery case as claimed in claim 1, is characterized in that: described silver-colored sand is to be coated in containing boron fibre and the surface of epoxy resin composite construction, to prevent tank surface from scratching.
3. the structural material of battery case as claimed in claim 1, is characterized in that: described battery cell is fixed by the case lid projection set by top cover of box inside, to limit above-below direction displacement.
4. the structural material of battery case as claimed in claim 1, is characterized in that: described cooling circulating line is the internal layer at carbon fiber, can save box volume and quality, carry high energy ratio.
5. the structural material of battery case as claimed in claim 1, is characterized in that: the cooling liquid of described cooling circulating line is the cooling liquid that water or ethylene glycol etc. use as desired.
6. the structural material of battery case as claimed in claim 1, is characterized in that: described water nozzle is threadedly secured on Battery case that the pump housing of certain power that water nozzle, flexible pipe are auxiliary can form cooling circulating water road, effectively reduces battery case temperature.
7. the structural material of battery case as claimed in claim 1, is characterized in that: described phase-change material (111) uses inorganic hydrated salt and the mixture of graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510056925.2A CN105990537B (en) | 2015-02-04 | 2015-02-04 | A kind of battery case structural material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510056925.2A CN105990537B (en) | 2015-02-04 | 2015-02-04 | A kind of battery case structural material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105990537A true CN105990537A (en) | 2016-10-05 |
| CN105990537B CN105990537B (en) | 2019-04-23 |
Family
ID=57035956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510056925.2A Expired - Fee Related CN105990537B (en) | 2015-02-04 | 2015-02-04 | A kind of battery case structural material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105990537B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221725A (en) * | 2017-05-27 | 2017-09-29 | 东风商用车有限公司 | A kind of thermal insulation layer packaged type power battery box of electric vehicle |
| CN109461854A (en) * | 2018-10-12 | 2019-03-12 | 徐州华邦塑业有限公司 | A kind of new energy car battery outer housing |
| CN109599518A (en) * | 2018-12-11 | 2019-04-09 | 江苏金坛绿能新能源科技有限公司 | Power battery box structure |
| CN113131038A (en) * | 2021-03-30 | 2021-07-16 | 暨南大学 | Battery system and assembly method thereof |
| CN113839135A (en) * | 2020-06-05 | 2021-12-24 | 奥动新能源汽车科技有限公司 | Battery box and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546843A (en) * | 2009-04-30 | 2009-09-30 | 广东工业大学 | Power battery device with phase-change material cooling system |
| CN102031090A (en) * | 2010-11-12 | 2011-04-27 | 张东 | Phase change graphite powder with phase change energy storage function and preparation method thereof |
| CN201946715U (en) * | 2010-07-26 | 2011-08-24 | 深圳世纪新能源电池有限公司 | Temperature-controlling circulating water system of power lithium ion battery box |
-
2015
- 2015-02-04 CN CN201510056925.2A patent/CN105990537B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546843A (en) * | 2009-04-30 | 2009-09-30 | 广东工业大学 | Power battery device with phase-change material cooling system |
| CN201946715U (en) * | 2010-07-26 | 2011-08-24 | 深圳世纪新能源电池有限公司 | Temperature-controlling circulating water system of power lithium ion battery box |
| CN102031090A (en) * | 2010-11-12 | 2011-04-27 | 张东 | Phase change graphite powder with phase change energy storage function and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 张晓红，周锋，冯奇等: "车用动力电池碳纤维箱体的设计研究", 《上海汽车》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221725A (en) * | 2017-05-27 | 2017-09-29 | 东风商用车有限公司 | A kind of thermal insulation layer packaged type power battery box of electric vehicle |
| CN107221725B (en) * | 2017-05-27 | 2023-10-10 | 东风商用车有限公司 | Power battery box of electric automobile with movable heat insulation layer |
| CN109461854A (en) * | 2018-10-12 | 2019-03-12 | 徐州华邦塑业有限公司 | A kind of new energy car battery outer housing |
| CN109599518A (en) * | 2018-12-11 | 2019-04-09 | 江苏金坛绿能新能源科技有限公司 | Power battery box structure |
| CN113839135A (en) * | 2020-06-05 | 2021-12-24 | 奥动新能源汽车科技有限公司 | Battery box and preparation method thereof |
| CN113131038A (en) * | 2021-03-30 | 2021-07-16 | 暨南大学 | Battery system and assembly method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105990537B (en) | 2019-04-23 |
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Granted publication date: 20190423 |