CN105990537A - Battery box structural material and production method thereof - Google Patents

Battery box structural material and production method thereof Download PDF

Info

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
structural
battery case
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
Application number
CN201510056925.2A
Other languages
Chinese (zh)
Other versions
CN105990537B (en
Inventor
李成飞
张国庆
魏超
高冠勇
司徒文甫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Wan Jin Science And Technology Co Ltd
Original Assignee
Guangdong Wan Jin Science And Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Wan Jin Science And Technology Co Ltd filed Critical Guangdong Wan Jin Science And Technology Co Ltd
Priority to CN201510056925.2A priority Critical patent/CN105990537B/en
Publication of CN105990537A publication Critical patent/CN105990537A/en
Application granted granted Critical
Publication of CN105990537B publication Critical patent/CN105990537B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy 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

A kind of battery case structural material and preparation method thereof
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.
CN201510056925.2A 2015-02-04 2015-02-04 A kind of battery case structural material and preparation method thereof Active CN105990537B (en)

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 Active 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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (3)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Title
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
CN105990537B (en) 2019-04-23

Similar Documents

Publication Publication Date Title
CN103682191B (en) Framework has a battery component for glue block
CN107815286B (en) Phase-change microcapsule-based heat-conducting encapsulating silica gel and preparation method thereof
CN106244114B (en) A kind of phase-change accumulation energy temperature-controlling system and method based on mobile foam metal
CN102157761A (en) Thermal management system for power battery based on pulsating heat pipe
CN104241729B (en) Water cooling and composite phase change material combined power battery heat dissipating device
CN103401044B (en) A kind of power battery thermal management system based on flat-plate heat pipe
CN105990537A (en) Battery box structural material and production method thereof
CN203351712U (en) Power battery thermal management system based on sintering heat pipes
CN203503756U (en) Thermal management system of power battery based on flat plate loop heat pipes
CN204204997U (en) The power battery heat-radiating device that a kind of water-cooled is combined with composite phase-change material
CN102585360A (en) Composite plastic, manufacturing method and encapsulation shell, lithium battery and battery pack manufactured by using composite plastic
CN104559128A (en) Preparation process for composite material of household appliance housing
CN204632819U (en) A kind of battery case structural material
CN103996888A (en) Honeycomb-shaped liquid cooling device of lithium battery
CN103227352A (en) Device for controlling temperature of electromobile/hybrid vehicle battery cell and method
CN202111201U (en) Lithium ion power battery and radiator thereof
Lin et al. Research Progress of Phase Change Storage Material on Power Battery Thermal Management
CN203984854U (en) Water-cooled controller
US20150104678A1 (en) Structure for power electronic parts housing of vehicle
CN207835200U (en) A kind of rotor and its motor of application
CN203690445U (en) Metal phase-change material-based power battery thermal management system
CN107719089A (en) Electric automobile chassis structure with radiating subassembly
CN102163759B (en) Battery pack
CN103762395A (en) Power battery heat management system based on metal phase-change materials
CN103367835A (en) Power battery thermal management system based on loop heat pipes

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant