WO2013092063A1 - Ensemble batterie, batterie et procédé de fabrication - Google Patents

Ensemble batterie, batterie et procédé de fabrication Download PDF

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Publication number
WO2013092063A1
WO2013092063A1 PCT/EP2012/073035 EP2012073035W WO2013092063A1 WO 2013092063 A1 WO2013092063 A1 WO 2013092063A1 EP 2012073035 W EP2012073035 W EP 2012073035W WO 2013092063 A1 WO2013092063 A1 WO 2013092063A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
current
cell winding
current collector
contact surface
Prior art date
Application number
PCT/EP2012/073035
Other languages
German (de)
English (en)
Inventor
Martin Kessler
Volker Doege
Andy Tiefenbach
Alexander Schmidt
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2013092063A1 publication Critical patent/WO2013092063A1/fr

Links

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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0431—Cells with wound or folded electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a battery assembly, in particular for a high-voltage battery for a motor vehicle, a battery, in particular a high-voltage battery for a motor vehicle, and a manufacturing method for a battery assembly.
  • One possibility is to use an internal combustion engine, e.g. in hybrid vehicles, supplemented by an electric motor. Furthermore, in electric vehicles of
  • Such energy storage such as a high-voltage battery, provides the electrical energy that is necessary to drive the electric motor and stores energy, which is obtained by the electric motor in the generator mode, for example when the vehicle brakes.
  • High-voltage batteries usually consist of individual electrochemical energy storage cells, which can be electrically connected in series or in parallel.
  • Such an energy store for hybrid or electric vehicles is shown for example in DE 102010028191 (A1).
  • Usual energy storage cells each have at least one cell winding package whose cathode and anode are each contacted by means of a connecting wire, also called tab.
  • the present invention discloses a battery assembly having the features of claim 1, a battery having the features of claim 9, and a manufacturing method for a battery assembly having the features of claim 10.
  • a battery assembly in particular for a high-voltage battery for a motor vehicle, having at least one cell winding package, which has at least one cathode and one anode, with at least one first current conductor for a respective cell winding packet, said first current conductor is coupled to the cathode and a flat
  • said second current collector is coupled to the anode and having a flat contact surface formed, and having a first bus bar, which with the flat contact surface of the first
  • Current conductor is coupled, and with a second bus bar, which is coupled to the flat contact surface of the second current collector.
  • a battery in particular high-voltage battery for a motor vehicle, with a
  • a battery housing comprising at least one battery assembly according to the invention, which is arranged in the battery housing, with a positive battery terminal which is coupled to a first bus bar of the battery assembly, and a negative battery terminal, which is coupled to a second bus bar, the battery assembly.
  • a manufacturing method for a battery assembly in particular for a high-voltage battery for a motor vehicle, comprising the steps of arranging at least one cathode and one anode into a cell winding package, coupling a first current conductor, which comprises a having a flat formed contact surface, with the cathode, coupling a second current collector, which has a flat contact surface, with the anode, coupling a first bus bar with the area formed contact surface of the first Stromableiters, and coupling a second busbar with the flat contact surface of the second current conductor.
  • the inductance which is a battery, in particular a high-voltage battery for a
  • the lower inductance and the lower DC resistance allow a reduction in the loss energy in switches or switching devices which are coupled to the battery assembly. Furthermore, the efficiency of the electrical system which is coupled to the battery assembly increases. Finally, electromagnetic emissions and DC losses are reduced.
  • the cathode and the anode and the first current collector and the second current collector are formed as films.
  • the cell winding package has an insulating film and a separator film, and has the first current collector, the cathode, the separator film, the anode, the second current collector, and the insulating film therein Order stacked and wrapped up. This makes it possible to provide a stable battery assembly with a compact design.
  • a battery arrangement has at least two cell winding packages, the battery arrangement being designed such that the contact area of the first current conductor and the contact area of the second current conductor of the cell winding packages are electrically coupled to the busbars in the same pole.
  • the parallel connection of several battery arrangements makes it possible to easily increase the energy content of electrical energy which the battery arrangement has.
  • a battery arrangement has at least two cell winding packages, the battery arrangement being designed such that the contact area of the first current conductor and the contact area of the second current conductor of at least two cell winding packages are electrically coupled to the busbars in opposite polarity. Furthermore, at least one busbar between the electrically opposite pole with the
  • a battery arrangement has at least two cell winding packages, wherein the contact surface of the first current conductor and the
  • Battery assembly additionally at least two more Zellwickelwovene, wherein the contact surface of the first Stromableiters and the contact surface of the second Stromableiters the other Zellwickelwovene are electrically gleichpolig coupled to the busbars. This makes it possible, both the energy content, and the
  • the cell winding package has an elliptical or a semicircle connected with two sides, rectangular cross section. Furthermore, the first current collector and the second current collector are designed such that they extend over the entire length of the main axis of the elliptical cross section of the Zellwickel remplis each protrude on opposite sides of the cell wrapping package across the width of the cell wrapping package, the contact surfaces of the current conductor bent at right angles at the same end of the respective
  • the cell winding package has an elliptical or a semicircle connected with two sides, rectangular cross section. Furthermore, the first current collector and the contact surface of the first current collector and the second current collector and the contact surface of the second current collector are as foils of the
  • Cell winding packages are formed, wherein the contact surfaces of the current conductors are formed as unwound from the cell winding package foil sections. This makes it possible to arrange the busbars very close together and thus to reduce the inductance of both the current collector and the busbars. Furthermore, a very simple construction of the cell wrapping package is made possible, since no separate contact surfaces have to be provided.
  • the cell winding package has an elliptical or a semicircle connected with two sides, rectangular cross section. Furthermore, the first current collector and the second current collector are designed such that they extend over the entire length of the main axis of the elliptical cross section of the
  • Zellwickel remplis each protrude on opposite sides of the cell wrapping package across the width of the cell wrapping package, wherein the contact surfaces of the current collector bent at right angles to the respective same end of the corresponding
  • Busbar over the second busbar or the second busbar is disposed above the first busbar, the first current conductor shorter than the second
  • the cell winding package has an elliptical or a semicircle connected with two sides, rectangular cross section. Furthermore, the first current collector and the contact surface of the first current collector and the second current collector and the contact surface of the second current collector are as foils of the
  • bus bars are formed as voltage applied to side surfaces of the Zellwickelwovens busbars, and wherein the
  • Contact surfaces of the current collector are designed as laterally formed on the cell winding package tabs. This makes it possible to place the cell winding packages very close together, thus providing a very compact battery arrangement.
  • FIG. 1 shows a schematic representation of an embodiment of a
  • Fig. 2 is a side view of an embodiment of an inventive
  • Fig. 3 is a schematic representation of another embodiment of a
  • Fig. 4 is a schematic representation of another embodiment
  • FIG. 5 is a schematic representation of another embodiment of a battery assembly 1 according to the invention.
  • FIG. 6 is a block diagram of an embodiment of a battery according to the invention.
  • FIG. 7 is a flowchart of a manufacturing method according to the invention.
  • FIG. 1 shows a schematic representation of an embodiment of a
  • the battery arrangement 1 in FIG. 1 has a cell winding package 2 which has an elliptical or a semicircle connected with two sides, of rectangular cross section, in which the ratio of the main axis to the minor axis is approximately 5: 1.
  • the main axis of the elliptical cross-section in Fig. 1 forms the
  • the vertical axis of the cell wrapping package 2 is about twice as high as it is wide.
  • the individual layers of the cell wrapping package 2 are stacked and wound around an axis through the center of the elliptical cross section, so that the individual layers are visible in a side view of each side of the cell wrapping package.
  • the cell winding package 2 has, on the left side, a first current conductor 5, which in one embodiment is electrically coupled to a current collector film applied to the cathode 3.
  • the first current conductor 5 is formed integrally with the current collector foil of the cathode 3.
  • the cell winding package 2 has a second current collector 7, which in one embodiment is electrically coupled to a current collector foil applied to the anode 4.
  • the second current conductor 7 is formed integrally with the current collector foil of the anode 4.
  • the current conductors 5 and 7 each extend over the entire length of the main axis of the elliptical cross section of the cell winding package 2.
  • the current conductors 4, 5 each have a contact surface 6, 8, which in a plane perpendicular to the respective current conductor 4, 5 extends in the direction of the center under the cell winding package 2. This extends the
  • a first bus bar 10 which is electrically coupled to the contact surface 6 and which is marked with a "+”, extends under the contact surfaces 6 of the first current conductor 5. Underneath the contact surfaces 8 of the second current conductor 7 extends a second bus bar 11 which extends is electrically coupled to the contact surface 8 and which is marked with a "-".
  • the cell winding package 2 has a geometry deviating from the cell winding package 2 in FIG. 1. For example, that can
  • ZellwickelMultimedia 2 have a different aspect ratio or different outer dimensions.
  • Fig. 2 shows a side view of an embodiment of an inventive
  • the cell winding package 2 has the first one
  • the cell wrapper has the
  • Zellwickel the second current collector 7, the anode 4, the separator film 12, the Cathode 3, the first current collector 5, a second first current collector 5, the cathode 3, a second separator foil 12, a second anode 4 and a second second second
  • a cell winding package 2 has a plurality of turns. The number of turns is at least of the available space and of the for the
  • Battery arrangement 1 specified energy content dependent.
  • FIG. 3 shows a schematic representation of a further embodiment of a battery arrangement 1 according to the invention.
  • FIG. 3 has a cell winding package 2, which corresponds to the cell winding package 2 of FIG. 1, but in which the current conductors 5, 7 are integrated into the cell winding package 2 as current collector foils 5, 7. Further, in the cell winding package 2 in FIG. 3, an additional one
  • Insulation layer 13b arranged at the end of the cell coil 2.
  • Fig. 3 forms as well as in Fig. 1, the major axis of the elliptical cross section, the vertical axis of the
  • the cell winding package 2 has no separate current conductors 5, 7 or contact surfaces 6, 8. Rather, the contact surfaces 6, 8 as part of the Stromableiterfolien 5, 7 are formed.
  • the end of the cell winding package 2 is unwound such that the unwound end on the busbars 10 and 1 1 comes to rest.
  • Busbar 10 are cut out such that the first current conductor 5 rests directly on the first busbar 10. Only the area of the foils will be affected
  • Busbar 10 is located. By inserting the additional insulation layer 13b at the winding end, it is ensured that cathode 3 and anode 4 are electrically insulated. In an analogous manner, the films which lie between the second current collector 7 and the second busbar 1 1, cut out such that the second current collector 7 rests directly on the second busbar 1 1.
  • the battery arrangement 1 shown in FIG. 3 makes it possible to easily connect cell winding packages to the conductor rails 10, 11.
  • FIG. 4 shows a schematic illustration of a further embodiment of a battery arrangement 1 according to the invention.
  • FIG. 4 has a cell winding package 2, which corresponds to the cell winding package 2 of FIG. 1. Furthermore, FIG. 4 has current conductors 5, 7, which, just as in FIG. 1, are arranged laterally on the cell winding package 2.
  • the contact surfaces 6, 8 of the current conductors 5, 7 are not arranged on a common plane. 4, the bus bars 10, 1 1 are formed such that they extend over the entire width of the cell winding package 2. Furthermore, the busbars 10, 1 1 are arranged below one another under the cell winding package, wherein the first busbar 10 is arranged above the second busbar 11. Furthermore, in one embodiment, an insulating layer (not shown in FIG. 4) is arranged between the busbars 10, 11, in order to avoid a short circuit between the busbars 10, 11. For electrical contacting of the contact surfaces 6, 8 of the current conductors 5, 7, the current conductors 5, 7 are formed differently long. The contact surfaces 6, 8 extend over the entire width of the cell winding package 2. The contact surface 6 of the first current conductor 5 extends directly under the cell winding package 2 over the entire width of the cell winding package 2 and contacts the first busbar 10. The second
  • FIG. 5 shows a schematic illustration of a further embodiment of a battery arrangement 1 according to the invention.
  • the battery assembly 1 in Fig. 5 a cell winding package 2, which the
  • the current conductors 5, 7 are formed in FIG. 5 as current drainage foils 5, 7 and integrated in the cell winding package 2.
  • the contact surfaces 6, 8 of the Stromabieiterfolien 5, 7 are formed as tabs 6, 8, which are attached to each side of the cell winding package 2 to contact the busbars 10, 1 1. In order to allow electrical contact of the bus bars 10, 1 1 with the tabs 6, 8, the bus bars 10, 1 1 on the sides of
  • FIG. 6 shows a block diagram of an embodiment of a battery 14 according to the invention.
  • the battery 14 has a battery housing 15, which at least one
  • Battery assembly 1 has.
  • Fig. 6 further possible battery arrangements 1 are represented by three dots.
  • the battery 14 in FIG. 6 has a positive battery terminal 16 and a negative battery terminal 17, which are coupled to the battery arrangements 1.
  • Fig. 7 shows a flow chart of a manufacturing method according to the invention.
  • a first busbar 10 is formed with the planar
  • a second busbar 1 1 is coupled to the flat contact surface 8 of the second Stromableiters 7.
  • the contact surfaces 6, 8 can be electrically and mechanically coupled to the bus bars 10, 11 by spot welding.
  • the contact surfaces 6, 8 with the busbars 10, 1 1 by electrically conductive adhesive, by soldering or the like can be electrically and mechanically coupled.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

L'invention concerne un ensemble batterie (1), en particulier pour une batterie haute tension d'un véhicule automobile, doté : d'au moins un paquet d'enroulements d'éléments (2) comportant au moins une cathode (3) et une anode (4) ; d'au moins un premier dérivateur de courant (5) pour chaque paquet d'enroulements d'éléments, ce premier dérivateur de courant étant couplé à la cathode et comportant une surface de contact (6) plane ; d'au moins un deuxième dérivateur de courant (7) pour chaque paquet d'enroulements d'éléments, ledit deuxième dérivateur de courant étant couplé à l'anode et comportant une surface de contact (8) plane ; d'un premier rail conducteur (10) couplé à la surface de contact plane des premiers dérivateurs de courant ; et d'un deuxième rail conducteur (11) couplé à la surface de contact plane des deuxièmes dérivateurs de courant. La présente invention concerne par ailleurs une batterie et un procédé de fabrication.
PCT/EP2012/073035 2011-12-22 2012-11-20 Ensemble batterie, batterie et procédé de fabrication WO2013092063A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011089665.1 2011-12-22
DE102011089665A DE102011089665A1 (de) 2011-12-22 2011-12-22 Batterieanordnung, Batterie und Herstellverfahren

Publications (1)

Publication Number Publication Date
WO2013092063A1 true WO2013092063A1 (fr) 2013-06-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/073035 WO2013092063A1 (fr) 2011-12-22 2012-11-20 Ensemble batterie, batterie et procédé de fabrication

Country Status (2)

Country Link
DE (1) DE102011089665A1 (fr)
WO (1) WO2013092063A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111464044A (zh) * 2020-05-06 2020-07-28 阳光电源股份有限公司 一种隔离型功率变换器和制氢系统
CN114156608A (zh) * 2021-12-03 2022-03-08 合肥国轩高科动力能源有限公司 一种锂电池的多卷芯结构及其装配方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015200921A1 (de) 2015-01-21 2016-07-21 Robert Bosch Gmbh Zellwickel für einen Lithium-Ionen-Akkumulator

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US20030129479A1 (en) * 2001-12-18 2003-07-10 Noriyoshi Munenaga Cell
US20070269685A1 (en) * 2005-09-02 2007-11-22 A123 Systems, Inc. Battery cell design and method of its construction
JP2008243672A (ja) * 2007-03-28 2008-10-09 Toshiba Corp 二次電池用捲回電極、リチウムイオン二次電池および二次電池パック
US20110104537A1 (en) * 2009-10-30 2011-05-05 Chi-Young Lee Current collecting plate and secondary battery including current collecting plate
US20110165444A1 (en) * 2009-04-30 2011-07-07 Tianjin Ev Energies Co., Ltd. sort of li-ion power cell
US20110195286A1 (en) * 2010-02-08 2011-08-11 Hitachi Vehicle Energy, Ltd. Secondary Cell
DE102010028191A1 (de) 2010-04-26 2011-10-27 Robert Bosch Gmbh Batterie mit einer Kühlplatte und Kraftfahrzeug mit einer entsprechenden Batterie

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030129479A1 (en) * 2001-12-18 2003-07-10 Noriyoshi Munenaga Cell
US20070269685A1 (en) * 2005-09-02 2007-11-22 A123 Systems, Inc. Battery cell design and method of its construction
JP2008243672A (ja) * 2007-03-28 2008-10-09 Toshiba Corp 二次電池用捲回電極、リチウムイオン二次電池および二次電池パック
US20110165444A1 (en) * 2009-04-30 2011-07-07 Tianjin Ev Energies Co., Ltd. sort of li-ion power cell
US20110104537A1 (en) * 2009-10-30 2011-05-05 Chi-Young Lee Current collecting plate and secondary battery including current collecting plate
US20110195286A1 (en) * 2010-02-08 2011-08-11 Hitachi Vehicle Energy, Ltd. Secondary Cell
DE102010028191A1 (de) 2010-04-26 2011-10-27 Robert Bosch Gmbh Batterie mit einer Kühlplatte und Kraftfahrzeug mit einer entsprechenden Batterie

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111464044A (zh) * 2020-05-06 2020-07-28 阳光电源股份有限公司 一种隔离型功率变换器和制氢系统
US11515803B2 (en) 2020-05-06 2022-11-29 Sungrow Power Supply Co., Ltd. Isolated power converter and hydrogen production system
CN114156608A (zh) * 2021-12-03 2022-03-08 合肥国轩高科动力能源有限公司 一种锂电池的多卷芯结构及其装配方法
CN114156608B (zh) * 2021-12-03 2024-03-12 合肥国轩高科动力能源有限公司 一种锂电池的多卷芯结构及其装配方法

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