DE102015111326A1 - Battery housing part for a traction battery of a vehicle, method for manufacturing a battery case and vehicle with a battery housing part - Google Patents

Battery housing part for a traction battery of a vehicle, method for manufacturing a battery case and vehicle with a battery housing part Download PDF

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Publication number
DE102015111326A1
DE102015111326A1 DE102015111326.0A DE102015111326A DE102015111326A1 DE 102015111326 A1 DE102015111326 A1 DE 102015111326A1 DE 102015111326 A DE102015111326 A DE 102015111326A DE 102015111326 A1 DE102015111326 A1 DE 102015111326A1
Authority
DE
Germany
Prior art keywords
battery
shell
battery housing
jacket
vehicle
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
Application number
DE102015111326.0A
Other languages
German (de)
Inventor
Jörn Meyer
Michael Richly
Maik Drobeck
Sierk Fiebig
Florian Glaubitz
Alexandra Weber
Michael Weinmann
Jan Beuscher
Thomas Große
Kristian Lippky
Raphael Schnurr
Roman Bem
Jens Ullrich
Jens Kutschmann
Milan Vucetic
Nenad Grbic
André Neumann
Moritz Micke-Camuz
Harald Kuolt
Stephan Kohlitz
Paul Zwickelhuber
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.)
KAROSSERIEWERKE DRESDEN GmbH
BASF SE
Leibniz Universitaet Hannover
Technische Universitat Clausthal
Technische Universitaet Braunschweig
Volkswagen AG
J Schmalz GmbH
Original Assignee
KAROSSERIEWERKE DRESDEN GmbH
BASF SE
Leibniz Universitaet Hannover
Technische Universitat Clausthal
Technische Universitaet Braunschweig
Volkswagen AG
J Schmalz GmbH
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 KAROSSERIEWERKE DRESDEN GmbH, BASF SE, Leibniz Universitaet Hannover, Technische Universitat Clausthal, Technische Universitaet Braunschweig, Volkswagen AG, J Schmalz GmbH filed Critical KAROSSERIEWERKE DRESDEN GmbH
Priority to DE102015111326.0A priority Critical patent/DE102015111326A1/en
Publication of DE102015111326A1 publication Critical patent/DE102015111326A1/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M2/1094Particular characteristics of materials used to isolate the battery from its environment, e.g. thermal insulation, corrosion resistance, pressure resistance, electrolyte leakage
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M2/1016Cabinets, cases, fixing devices, adapters, racks or battery packs
    • H01M2/1072Cabinets, cases, fixing devices, adapters, racks or battery packs for starting, lighting or ignition batteries; Vehicle traction batteries; Stationary or load leading batteries
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00Safety devices for primary or secondary batteries
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • 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 relates to a battery housing part (10) for a traction battery of a vehicle, which has an electric motor drive, with a receiving body, in which the traction battery is receivable, wherein the receiving body (12) consists at least partially of a thermoplastic material. It is envisaged that the receiving body (12) comprises an outer sheath body (14) of thermoplastic material and an inner sheath body (16) which consists at least partially of metal, or vice versa.

Description

  • The invention relates to a battery housing part for a traction battery of a vehicle, which has an electric motor drive and a method for producing a battery housing part and a vehicle with a battery housing part.
  • It is known that vehicles that have an electric motor drive as energy storage include a traction battery. Such vehicles may be, for example, vehicles with a pure electric drive or vehicles with a combined drive from an internal combustion engine drive and an electric drive.
  • It is known to arrange the traction batteries in closed housings, in a battery shell, a battery tray, a battery tray or a battery box. For the purposes of the invention, the possible storage containers are summarized under battery housing parts.
  • It is known to form battery housing parts or battery housing from flat, folded or deep-drawn metal sheets, which usually consist of aluminum or steel. Metallic material battery housing parts or battery cases allow effective shielding of the environment of the battery case from electromagnetic radiation of the traction battery and also effective shielding of the traction battery from electromagnetic radiation emanating from radiation sources in the vicinity of the traction battery.
  • It is also known to form battery housing parts or battery housing from a plastic material. These can be produced in contrast to the existing of metallic material battery housing part with a lower weight. However, a plastic battery casing does not provide effective shielding against electromagnetic radiation.
  • Out DE 10 2011 052 515 A1 a battery housing part for a traction battery is known, comprising a receiving body for the traction battery, wherein the receiving body at least partially made of a thermoplastic material in the wall of a planar element for shielding an environmental region of the battery housing part is integrated, which consists at least partially of a metallic material ,
  • By means of the known battery housing part, on the one hand, there should be a weight saving compared to battery housing parts made of metal and, on the other hand, an electromagnetic shielding should also be realized.
  • In the known battery housing part is disadvantageous that this is only complicated to produce due to the embedding of the metallic material in the wall of the battery case part.
  • The invention is an object of the invention to provide a battery housing part of the generic type, which is characterized by a simple structure, has a low weight and allows electromagnetic shielding. The object of the invention is also to provide a method for producing such a battery housing part.
  • According to the invention the object is achieved by a battery housing part with the features mentioned in claim 1. Characterized in that the receiving body comprises an outer shell body made of thermoplastic material and an inner shell body, which consists at least partially of metal, is advantageously possible to form the battery housing part clam shell, wherein the outer shell body made of plastic leads to a weight reduction and the inner shell body, the electromagnetic shield takes over. At the same time, the inner jacket body contributes to increasing the stiffness of the battery housing part, so that a crash protection for the traction battery is realized.
  • In a preferred embodiment of the invention, it is provided that the inner jacket body is a prefabricated molded body which is joined to the outer jacket body. As a result, the battery housing part is obtained in a simple manner, wherein the two sheath bodies are provided separately and thus each can be optimally designed for their function. In particular, when the inner sheath body in a preferred embodiment of the invention is a deep-drawn sheet metal shell, it can be produced in one operation in the desired shape. Due to the one-piece design is also a tightness, both against entering and against leaking media in or out of the battery case part achievable.
  • In a further preferred embodiment of the invention it is provided that the inner jacket body consists of a folded and joined to a shell metal sheet. This makes it possible to provide a made-to-measure metal sheet according to the intended shape of the inner shell body punched metal sheet, which is brought by forming in the final shape of the inner shell body. The abutting open areas of the formed metal sheet may preferably be tightly connected to each other by crimping.
  • Furthermore, it is provided in a preferred embodiment of the invention that the inner jacket body consists of an organic sheet. Organo sheets and their use in motor vehicle construction are known per se. Organo-sheet is understood to mean an initially plate-shaped semifinished product made of fiber-reinforced, thermoplastic material, wherein in a thermoplastic matrix a woven fabric, scrim, which is embedded in glass, glass fibers, ARamide, metal wires or metal mesh. Such organo sheets are characterized by a high strength and are suitable for the production of three-dimensional shapes.
  • Furthermore, it is provided in a preferred exhibition of the invention that the outer shell body is applied to the inner shell body by molding. As a result, a joining of the outer jacket body with the inner jacket body is possible in a particularly simple manner. In particular, when the inner shell body consists of an organic sheet, so a form and a material bond between the inner and outer shell body can be achieved.
  • Furthermore, it is provided in a preferred exhibition of the invention that the inner shell body is only partially encapsulated in plastic. This makes it possible to achieve a further weight reduction.
  • In a further preferred exhibition of the invention it is provided that the inner and / or the outer jacket body has at least one bead. As a result, a rigidity of the battery case part can be increased. This is thus suitable for a particularly secure receiving a traction battery.
  • The object is further achieved by a method having the feature mentioned in claim 9. Characterized in that the battery housing part by providing an inner jacket body which is at least partially made of metal and subsequent joining of the inner metal body with an outer metal body which consists of thermoplastic material, is obtained in a simple manner, the required functions fair expectant battery housing part. The joining may consist in a nesting of each prefabricated inner shell bodies and outer shell bodies. However, the joining can also consist of encapsulating the inner jacket body with a thermoplastic.
  • For the purposes of the invention is also when the thermoplastic shell body made of thermoplastic material of the inner shell body and the outer shell body is at least partially made of metal.
  • The invention will be explained below in embodiments with reference to the accompanying drawings. Show it:
  • 1 a schematic perspective view of a battery case part in a first embodiment in an exploded view; and
  • 2 a schematic perspective view of a second embodiment in exploded view.
  • 1 shows a total of 10 designated battery housing part in a schematic exploded view. The battery case part 10 includes a receiving body 12 that of an outer shell body 14 and inner jacket body 16 is formed. The jacket body 14 consists of a thermoplastic material, while the sheath body 16 is made of a metal, for example aluminum or steel. In the intended condition, the inner jacket body 16 within the outer shell body 14 arranged. That is, the outer shell body 14 takes the inner shell body 16 positive locking. In addition, not shown here in detail connecting elements for a frictional and positive connection of the outer jacket body 14 and the inner shell body 16 be provided. In its intended condition, the receiving body is used 12 for receiving a traction battery, not shown.
  • The inner jacket body 16 consists according to the in 1 illustrated embodiment of a deep-drawn sheet metal. During the deep-drawing process, the desired shape of the inner shell body 16 receive. The outer jacket body 14 is obtained in an injection molding tool made of thermoplastic material, wherein the injection mold has a mold cavity which corresponds to the final shape of the outer jacket body.
  • The sheath body 14 and 16 have here indicated breakthroughs 18 for contacting a in the battery housing part 10 arranged traction battery.
  • 1 further clarifies that the shape of the outer shell body 14 adapted to the installation location in a vehicle. Here is, for example, a channel-like recess 20 on an underside of the battery case part 10 shown, which is provided for receiving an exhaust pipe.
  • Furthermore, it is clarified that the outer sheath body 14 beading 22 possesses, which increase the rigidity of the sheath body 14 serve.
  • The inner jacket body 16 forms a circumferential edge 24 on the one hand, the support of the inner shell body 16 on an edge 26 of the lower shell body 14 serves. The edge 24 may also serve the attachment of a - not shown - cover, by means of which in the battery housing part 10 arranged traction battery can be completely enclosed.
  • 2 shows a battery housing part 10 in a second embodiment also as a schematic exploded view.
  • The outer jacket body 16 consists of an organic sheet here. The organic sheet can be produced in a deep-drawing process or by folding depending on the tub height. The organic sheet is embedded in a matrix material tissue, scrim or fleece of carbon fibers, metal fibers or the like. The matrix material used is a thermoplastic material.
  • The organic sheet may be formed so that the inner sheath body 16 integrated stiffening ribs 28 having. These stiffening ribs 28 serve an improved strength of the battery case part 10 especially in the event of a crash.
  • In the corner areas of the inner shell body 16 made of folded organic sheets are here indicated joining measures ( 30 ) of the wall ends. The corners may, for example, have "corner corners" of metal or sheet metal, with which the walls are joined together to form the tub shape. Also, joining by means of infrared welding is conceivable, in the case also butt joint, lap joint or T-joint is conceivable.
  • To complete the battery case part 10 becomes the inner sheath body 16 overmoulded with thermoplastic material. For this purpose, the inner jacket body 16 introduced into a mold cavity of an injection molding machine and with the outer shell body 14 molded.
  • The outer jacket body 14 consists of a thermoplastic material, preferably the same thermoplastic material from which the matrix material of the organic sheet consists. This results in a material bond between the inner shell body 16 and the outer sheath body 14 , For a better positive and cohesive connection with the outer shell body 14 Perforations in the Organoblechwanne or metal tray are conceivable.
  • According to an embodiment, not shown, it is also possible that the inner jacket body 16 is only partially encapsulated with a thermoplastic material.
  • Here, for example, an encapsulation of only the side walls take place. The bottom area of the battery case part 10 then gets through the floor 32 of the inner jacket body 16 educated.
  • LIST OF REFERENCE NUMBERS
  • 10
    Battery casing
    12
    receiving body
    14
    outer jacket body
    16
    inner jacket body
    18
    breakthroughs
    20
    recess
    22
    ribs
    24
    edge
    26
    edge
    28
    stiffening ribs
    30
    connecting areas
    32
    ground
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • DE 102011052515 A1 [0006]

Claims (10)

  1. Battery housing part ( 10 ) for a traction battery of a vehicle, which has an electric motor drive, with a receiving body, in which the traction battery is receivable, wherein the receiving body ( 12 ) consists at least partially of a thermoplastic material, characterized in that the receiving body ( 12 ) an outer shell body ( 14 ) made of thermoplastic material and an inner shell body ( 16 ) which consists at least partly of metal, or vice versa.
  2. Battery housing part according to claim 1, characterized in that the inner jacket body ( 16 ) is a prefabricated molded body, with the outer shell body ( 14 ) is added.
  3. Battery housing part according to one of the preceding claims, characterized in that the inner jacket body ( 16 ) is a deep-drawn sheet metal shell.
  4. Battery housing part according to one of claims 1 or 2, characterized in that the inner cladding body ( 16 ) consists of a folded and joined to a shell metal sheet.
  5. Battery housing part according to one of claims 1 or 2, characterized in that the inner jacket body ( 16 ) consists of an organic sheet.
  6. Battery Housing part according to one of the preceding claims, characterized in that the outer shell body ( 14 ) on the inner shell body ( 16 ) is applied by overmolding.
  7. Battery housing part according to one of the preceding claims, characterized in that the inner jacket body ( 16 ) is only partially encapsulated with thermoplastic material.
  8. Battery housing part according to one of the preceding claims, characterized in that the inner jacket body ( 16 ) and / or the outer shell body ( 14 ) at least one rib ( 22 ) having.
  9. Method for producing a battery housing part ( 10 ) for a traction battery of a vehicle comprising the following steps: - providing an inner sheath body ( 16 ) which is at least partially made of metal; - joining the inner shell body ( 16 ) with an outer shell body ( 14 ), which consists of thermoplastic material.
  10. Vehicle having at least partially an electromotive drive with a battery housing part ( 10 ) according to one of claims 1 to 8.
DE102015111326.0A 2015-07-13 2015-07-13 Battery housing part for a traction battery of a vehicle, method for manufacturing a battery case and vehicle with a battery housing part Pending DE102015111326A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102015111326.0A DE102015111326A1 (en) 2015-07-13 2015-07-13 Battery housing part for a traction battery of a vehicle, method for manufacturing a battery case and vehicle with a battery housing part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015111326.0A DE102015111326A1 (en) 2015-07-13 2015-07-13 Battery housing part for a traction battery of a vehicle, method for manufacturing a battery case and vehicle with a battery housing part

Publications (1)

Publication Number Publication Date
DE102015111326A1 true DE102015111326A1 (en) 2017-01-19

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DE102015111326.0A Pending DE102015111326A1 (en) 2015-07-13 2015-07-13 Battery housing part for a traction battery of a vehicle, method for manufacturing a battery case and vehicle with a battery housing part

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6146778A (en) * 1997-07-25 2000-11-14 3M Innovative Properties Company Solid-state energy storage module employing integrated interconnect board
EP2427038A1 (en) * 2010-09-01 2012-03-07 LANXESS Deutschland GmbH EMF-shielded plastic organo-sheet hybrid structural component
DE102011052515A1 (en) 2011-08-09 2013-02-14 Rehau Ag + Co. Battery housing part for a battery housing of a traction battery of an electric vehicle and method for manufacturing the battery housing part
DE102011111229A1 (en) * 2011-08-20 2013-02-21 GEDIA Gebrüder Dingerkus GmbH Battery enclosure for electric and hybrid vehicles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6146778A (en) * 1997-07-25 2000-11-14 3M Innovative Properties Company Solid-state energy storage module employing integrated interconnect board
EP2427038A1 (en) * 2010-09-01 2012-03-07 LANXESS Deutschland GmbH EMF-shielded plastic organo-sheet hybrid structural component
DE102011052515A1 (en) 2011-08-09 2013-02-14 Rehau Ag + Co. Battery housing part for a battery housing of a traction battery of an electric vehicle and method for manufacturing the battery housing part
DE102011111229A1 (en) * 2011-08-20 2013-02-21 GEDIA Gebrüder Dingerkus GmbH Battery enclosure for electric and hybrid vehicles

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