WO2016204470A1 - 카트리지 및 이를 포함하는 전지 모듈 - Google Patents
카트리지 및 이를 포함하는 전지 모듈 Download PDFInfo
- Publication number
- WO2016204470A1 WO2016204470A1 PCT/KR2016/006270 KR2016006270W WO2016204470A1 WO 2016204470 A1 WO2016204470 A1 WO 2016204470A1 KR 2016006270 W KR2016006270 W KR 2016006270W WO 2016204470 A1 WO2016204470 A1 WO 2016204470A1
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- WIPO (PCT)
- Prior art keywords
- seating
- lead
- cartridge
- battery cells
- pair
- Prior art date
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Classifications
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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
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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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
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
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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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- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
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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
- 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
-
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
- H01M50/51—Connection only in series
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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
- 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
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
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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
Definitions
- the vehicle has evolved in the order of a hybrid vehicle, a plug-in hybrid vehicle, and an electric vehicle.
- the hybrid vehicle and the plug-in hybrid vehicle have an internal combustion engine, an electric motor and a battery pack, and the electric vehicle has an electric motor and a battery pack without an internal combustion engine.
- the battery pack has at least one battery module.
- the battery module has cartridges and battery cells.
- the cartridges are stacked sequentially.
- the cartridges are tightly coupled to each other using fastening means such as bolts.
- the battery cell is also located between two opposite cartridges.
- the battery cell has a body portion and a pair of electrode leads.
- the body portion has an electrode assembly and an electrolyte seated between two cartridges and sealed inside the pouch packaging and the pouch packaging.
- the battery pack has two or more battery modules to be implemented in a large capacity.
- the battery modules are arranged in a horizontal direction and / or a vertical direction in the battery pack and are electrically connected in series or in parallel through connection parts such as bus bars or connectors.
- the present invention has been made under the background of the prior art as described above, by increasing the number of battery cells seated at the same level to increase the space efficiency compared to the same capacity while lowering the thickness of the assembly to the same output voltage, the voltage around the battery cell It is an object of the present invention to provide a cartridge suitable for simplifying a sensing structure and a battery module including the same.
- Cartridge according to the present invention for achieving the above technical problem, a pair of through-window sequentially positioned along the longitudinal direction, and the lower slide table, the lead seating table sequentially positioned in the width direction between the pair of through-window And a seating frame including an upper slide; And cooling fins respectively covering the pair of through-windows, wherein the lower slide and the upper slide are respectively positioned on the left and right sides of the lead seat, and face each other diagonally.
- the seating frame has a left groove and a right groove in the width direction between the pair of through windows, and the lower slide and the upper slide are located below the left groove and on the right groove, respectively, to the left side.
- the groove and the right groove may be partially covered.
- the lower extension portion may have a smaller thickness than the lower slide
- the upper extension portion may have a smaller thickness than the upper slide
- the seating frame further comprises seating fences each surrounding the pair of through windows, the seating fence being located along an edge of the seating frame and protruding towards the bottom and top of the seating frame. have.
- the seating fence may be opened toward the lead seating plate, and may have lead take-out grooves in the lower and upper portions of the seating frame on the opposite side of the lead seating plate, respectively.
- a cartridge stack comprising a plurality of cartridges are sequentially stacked, each cartridge is a pair of through-window sequentially positioned along the longitudinal direction, and the one A cartridge stack including a left groove sequentially positioned in the width direction between the pair of through windows, a seating frame having lead lead and right grooves, and cooling fins respectively covering the pair of through windows;
- Two battery cells arranged on top of the seating frame of each cartridge or on each of the bottom and top, each battery cell comprising a pair of electrode leads facing in opposite directions with respect to each other and located at the same level
- the bonded ends of the electrode leads facing each other are located on the lead seating plate, one electrode lead on one side is exposed to the front side of the cartridge stack, and one electrode lead on the other side.
- the thickness of the topmost cartridge may be half of the thickness of each of the remaining cartridges.
- the lower slide is located below the left groove to partially cover the left groove
- the upper slide is located above the right groove to partially cover the right groove
- the lead seat is through the left groove. It may be connected to the lower slide and to the upper slide through the right groove.
- the seating frame further comprises slits respectively positioned on both sidewalls adjacent to the through window, wherein a cooling fin is inserted into the slits through the edge of the through window and protrudes from the slits. It may be bent vertically along both sidewalls of the frame and surrounded by two battery cells in a sanded structure.
- the seating frame further includes a seating fence in the upper or lower portion and the upper portion of each cartridge, the seating fence, may protrude vertically to a height corresponding to the thickness of each battery cell. .
- the seating frame further comprises seating fences each surrounding the two battery cells positioned at the same level, each seating fence opening towards the lead seating board, and a lead opposite the lead seating board. It may have a drawing groove.
- the battery cells may be electrically connected in series by electrode leads exposed on the front side and the rear side of the cartridge stack.
- the first intermediate sensing structure may include a first intermediate connection inserted into a left groove of each of the plurality of cartridges, and a first movement stop coupled with the first intermediate connection.
- the first intermediate connecting portion has a plurality of first fingers, a first connecting slit at an end of each first finger, a first insertion guide slit between two adjacent first fingers, and the first connecting slit May be opened toward the joined ends of the opposing electrode leads, and the first insertion guide slit may be opened toward the opposing lead seat.
- the first connecting slit has a first connecting clip made of metal, and the first connecting clip can elastically clip the joined ends of the electrode leads facing each other.
- the first insertion guide slit can be slid to the lower slide that is opposite to accommodate the lower slide.
- the first movement preventing portion may be coupled to the first intermediate connecting portion at a right angle to contact the side wall of the cartridge stack around the left groove.
- the first intermediate sensing structure further comprises a first wire portion coupled with a first movement stopping portion and electrically connected to the first end sensing structure, wherein the first wire portion is connected to the first connecting clip. And a first conductive line passing through the inside of the first intermediate connecting portion and the inside of the first movement preventing portion.
- the second intermediate sensing structure may include a second intermediate connecting portion inserted into each of the right grooves of the plurality of cartridges, and a second movement preventing portion combined with the second intermediate connecting portion.
- the second intermediate connecting portion has a plurality of second fingers, a second connecting slit at the end of each second finger, and a second insertion guide slit between two adjacent second fingers, wherein the second connecting slit May be opened toward the joined ends of the opposing electrode leads, and the second insertion guide slit may be opened toward the opposing lead seat.
- the second connecting slit has a second connecting clip made of metal, and the second connecting clip can elastically clip the joined ends of the electrode leads facing each other.
- the second insertion guide slit can slide on the opposite upper slide to receive the upper slide.
- the second movement preventing portion may be coupled to the second intermediate connecting portion at a right angle to contact the side wall of the cartridge stack around the right groove.
- the second intermediate sensing structure further includes a second wire portion coupled to the second movement stopping portion and electrically connected to a second end sensing structure, wherein the second wire portion is connected to the second connecting clip.
- the second conductive wire may be connected to the second conductive line through the inside of the second intermediate connecting portion and the inside of the second movement preventing portion.
- the voltage sensing module may include a printed circuit board on an inner circumferential surface facing the plurality of cartridges at an edge of one side and a connector electrically connected to the printed circuit board on an outer circumferential surface facing the insulating cover. .
- the voltage sensing module includes support ribs sequentially stacked in a central region, a first sensing bus bar connected to an electrode terminal through the printed circuit board and the other end through one end on an uppermost support rib, and the top end
- a second sensing bus bar positioned on each support rib under the support rib and in contact with the printed circuit board may further include a lead insulation pattern and a lead lead slit sequentially positioned between two adjacent support ribs.
- the voltage sensing module of the first terminal sensing structure inserts the top electrode lead of the top battery cell into the top lead extraction slit to the top electrode lead. Bonding the pair of electrode leads to the second sensing busbar by inserting a pair of electrode leads of two adjacent battery cells under each top lead-out slit under the top lead-out slit. You can.
- the voltage sensing module of the second terminal sensing structure inserts the bottom electrode lead of the bottom battery cell into the bottom lead extraction slit to the bottom electrode lead; A pair of electrode leads of two adjacent battery cells are inserted into each lead extracting slit on the bottom lead extracting slit to connect the pair of electrode leads to the first sensing busbar or the It can be bonded to the second sensing bus bar.
- the printed circuit board of the second terminal sensing structure may be in contact with the second wire portion of the second intermediate sensing structure to sense the potential of each battery cell in contact with the second intermediate sensing structure.
- the lead insulation pattern may electrically insulate two adjacent first and second sensing busbars or electrically insulate two adjacent second sensing busbars under the first sensing busbar.
- the battery module according to the present invention seats two battery cells below and above each cartridge in sequentially stacked cartridges, thereby preventing the increase in the number of use of the cartridges for high capacity of the battery pack, thereby maintaining the stacking height of the cartridges properly. You can.
- the battery module according to the present invention has the electrode leads of the battery cells in the center region and the edges of each cartridge in sequentially stacked cartridges, so that the sensing structures contacting the electrode leads for each cartridge region are selected. By distributing, the voltage sensing structure can be simplified.
- the battery module according to the present invention reduces the number of cartridges used in the stack structure of the cartridges and the battery cells, and simplifies the coupling relationship of the sensing structures in contact with the electrode leads of the battery cells, thereby reducing the manufacturing cost by reducing the labor cost of the operator. Can be.
- FIG. 2 is an exploded perspective view illustrating the cartridge stack of FIG. 1, a plurality of battery cells, first and second intermediate sensing structures, and first and second terminal sensing structures.
- FIG. 3 is an exploded perspective view showing the cartridge and battery cells of FIG. 2 in an enlarged manner.
- FIG. 5 is a cross-sectional view showing the cartridge taken along the cutting line II ′ in FIG. 4.
- FIG. 5 is a cross-sectional view showing the cartridge taken along the cutting line II ′ in FIG. 4.
- FIG. 6 is a partial perspective view partially illustrating a coupling relationship between the cartridge stack of FIG. 2, a plurality of battery cells, and first and second intermediate sensing structures.
- FIG. 9 is a partial perspective view partially illustrating a coupling relationship between the cartridge, the battery cell, and the first and second intermediate sensing structures in FIG. 8.
- FIG. 10 and 11 are exploded perspective views showing a part of the cartridge stack of FIG. 2 and a plurality of battery cells, first and second end sensing structures.
- FIG. 12 is a partial perspective view partially illustrating a coupling relationship between a portion of the cartridge stack of FIG. 10, a plurality of battery cells, and a first terminal sensing structure.
- FIG. 13 is a partial cross-sectional view partially showing a portion of a cartridge stack, battery cells, and a first end sensing structure, taken along cut line III-III 'of FIG. 12;
- 15 and 16 are perspective views illustrating a method of manufacturing the battery module of FIG. 1.
- the battery cell refers to a lithium secondary battery.
- the lithium secondary battery is a generic term for a secondary battery in which lithium ions act as operating ions during charging and discharging to induce an electrochemical reaction in the positive electrode and the negative electrode.
- the present invention is not limited to the type of battery.
- FIG. 1 is an exploded perspective view showing a battery module according to an embodiment of the present invention
- Figure 2 is a cartridge stack of Figure 1, a plurality of battery cells, the first and second intermediate sensing structure, and the first and second end sensing
- 3 is an exploded perspective view showing the cartridge and battery cells of FIG. 2 in an enlarged manner.
- the battery module 120 includes a cartridge stack 10A, battery cells 30, first and second intermediate sensing structures 50 and 70, and heat transfer pads 91. 93, a lower end plate (95A in FIG. 16), an upper end plate 95B, first and second end sensing structures 97 and 99, and side plates 100 and 110.
- the cartridge stack 10A has cartridges 10 sequentially stacked.
- the top cartridge 10a has a structure cut along a horizontal plane at a midpoint of the thickness T of the cartridge 10 positioned below the top cartridge 10a. .
- the thickness of the top cartridge 10a has half the thickness T of the cartridge 10 located below the top cartridge 10a.
- the cartridge stack 10A has a left groove portion LGP on the left side wall and a right groove portion RGP on the right side wall in the central region when viewed in the longitudinal direction.
- the left groove portion LGP receives the first intermediate sensing structure 50 of the finger structure
- the right groove portion RGP receives the second intermediate sensing structure 70 of the finger structure.
- the battery cells 30 are seated in the cartridges 10.
- the uppermost cartridge 10a seats two battery cells 30 electrically connected in series at an upper portion thereof, and each cartridge 10 positioned below the uppermost cartridge 10a has an electrical lower portion thereof.
- Two battery cells 30 connected in series and two battery cells 30 electrically connected in series on the top are seated.
- the battery cell 30 has two electrode leads 25 in both directions.
- the battery cell 30 is made of a pouch type.
- the battery cell 30 includes a pouch packaging material for sealing an electrode assembly and an electrolyte, and a pair of electrical connections connected to the electrode assembly inside the pouch packaging material and drawn out from the inside of the pouch packaging material to the outside. It has an electrode lead 25.
- the electrode lead 25 has an electrical polarity of cathode (-) or anode (+).
- the two battery cells 30 On one side of the top cartridge 10a or the cartridge 10 positioned below the top cartridge 10a, the two battery cells 30 have ends of electrode leads 25a having opposite polarities with respect to each other. And the ends of the electrode leads 25a are joined in series by laser welding or the like. The joined ends of the electrode leads 25a are seated on a lead seat 4 located in the central region of one side of the cartridge 10 located below the top cartridge 10a or top cartridge 10a. do.
- the electrode leads 25b and 25c which are not bonded in the two battery cells 30 are bent approximately vertically, and the cartridge 10 positioned below the top cartridge 10a or the top cartridge 10a. In front of and behind the lead), through the lead out grooves (6a, 6b) is exposed toward the outside of the cartridge 10 which is located below the top cartridge (10a) or the top cartridge (10a).
- the top cartridge 10a will be replaced with the cartridge 10 located below the top cartridge 10a.
- the cartridge 10 has a battery cell 30A on the front side and a battery cell 30B on the rear side, the battery cell 30C on the front side and the battery cell 30D on the rear side on the other side opposite to one side.
- the electrode leads 25b and 25c of the battery cells 30A and 30B are connected to the electrode leads 25b and 30D of the battery cells 30C and 30D through the lead-out grooves 6a and 6b of the cartridge 10. 25c) and may be electrically connected in series.
- the electrode leads 25b of the battery cells 30A and 30C or the electrode leads 25c of the battery cells 30B and 30D overlap each other and are bonded by laser welding or the like,
- the battery cells 30A, 30B, 30C, 30D may be electrically connected in series through the lead out grooves 6a, 6b of the cartridge 10.
- the first and second intermediate sensing structures 50 and 70 may be inserted into the left groove portion LGP and the right groove portion RGP of the cartridge stack 10A, respectively.
- the first and second intermediate sensing structures 50, 70 comprise a plurality of branched fingers, each end of which is seated on the lead seat 4 in the central region of the cartridge 10.
- the bonded ends of the electrode leads 25a may be in contact.
- the heat transfer pads 91, 93 are positioned perpendicular to the first and second intermediate sensing structures 50, 70 and located on the sidewalls of the cartridge stack 10A.
- each of the heat transfer pads 91 and 93 is in contact with a metal cooling fin (8 of FIG. 2) inserted into the cartridge 10, and the battery cell 30 seated in the cartridge 10. The heat of the field is transmitted from the cooling fins 8 to dissipate to the outside of the cartridge stack 10A.
- the heat transfer pads 91 and 93 are made of a metal material having good thermal conductivity.
- the lower end plate 95A and the upper end plate 95B may be located on the lower and upper surfaces of the cartridge stack 10A, respectively, to be coupled to the cartridge stack 10A.
- the lower end plate 95A and the upper end plate 95B protect the top battery cell 30 and the bottom battery cell 30 in the cartridge stack 10A, and It serves to dissipate heat to the outside.
- the lower end plate 95A and the upper end plate 95B are screwed with the cartridge stack 10A, and are made of a metal material having good mechanical rigidity and thermal conductivity.
- the first and second end sensing structures 97, 99 are positioned facing each other around the cartridge stack 10A in the longitudinal direction of the cartridge stack 10A.
- first and second end sensing structures 97 and 99 are in electrical contact with electrode leads 25b and 25c exposed from the lead-out grooves 6a and 6b of the cartridges 10.
- the first and second terminal sensing structures 97 and 99 include a voltage sensing module 84 and an insulating cover 88.
- the voltage sensing module 84 includes first and second sensing bus bars (84C and 84D in FIG. 10) electrically connected to the electrode leads 25b and 25c of the battery cells 30.
- FIG. 4 is a perspective view showing the cartridge of FIG. 3 in more detail
- FIG. 5 is a cross-sectional view showing the cartridge taken along the cutting line I-I 'of FIG.
- the cartridge 10 seats four battery cells 30A, 30B, 30C, and 30D in total so that the cartridge 10 is positioned at the bottom and the top thereof.
- the cartridge 10 has seating frames 7, cooling fins 8, and couplings 9 that independently define a space for seating a pair of battery cells on each of the top and bottom.
- the overall shape of the seating frame 7 is rectangular.
- the seating frame 7 includes a pair of through-windows 1 arranged along the longitudinal direction, slits 2 passing through both sidewalls adjacent to each through-window 1, and a pair of through-windows 1. ) Includes a left groove LG and a right groove RG positioned at the left and right sides of the center frame CF, respectively.
- the seating frame 7 has a lower slide 3, a lead seat 4 and an upper slide 5 in the center frame CF, each of which surrounds a pair of through-window 1 And first and second seating fences 6c and 6d extending along.
- the pair of through-windows 1 are arranged to correspond to the cooling fins 8 respectively along the longitudinal direction of the seating frame 7.
- the slits 2 are located along the longitudinal direction of the seating frame 7 and communicate with the through windows 1.
- the left groove LG and the right groove RG correspond to the left groove portion LGP and the right groove portion RGP in the cartridge stack 10A of FIG. 2, respectively.
- the left groove LG and the right groove RG extend inwardly from both sides of the cartridge 10 between the mounting fences 6 along the width direction of the mounting frame 7.
- the bottom surface of the lead seat 4 provides a seating surface for the bonded ends of the electrode leads 25a of the pair of battery cells 30C, 30D at the bottom of the cartridge 10.
- the lower slide 3 and the upper slide 5 have a plate shape.
- the lower slide 3 and the upper slide 5 are located on the left and right of the lead seat 4, respectively, facing each other diagonally and extending to both sides of the seating frame 7 to a predetermined length.
- the lower slide 3 is located below the left groove LG in the thickness direction of the seating frame 7 and protrudes from the lower surface of the lead seat 4.
- the upper surface of the upper slide 5 is located closer to the upper surface of the lead seat 4 than the lower surface of the lead seat 4.
- the upper surface of the upper slide 5 is located at a higher level than the upper surface of the lead seat 4 and forms a step with the upper surface of the lead seat 4.
- the upper slide 5 is connected to an end of the other side of the lead seat 4 to partially cover the right groove RG over the right groove RG.
- the upper slide 5 is located on the right groove RG along the thickness direction of the seating frame 7 and protrudes from the upper surface of the lead seat 4.
- the lead seat 4 extends from the bottom of the seating plate 4A and the seating plate 4A in the width direction of the center frame CF toward the lower slide 3 and forms a step with the lower slide 3.
- the seating plate 4A is located between the left groove LG and the right groove RG.
- the lower extension part LE is positioned between the seating plate 4A and the lower slide 3 to partially cover the left groove LG and is connected to the lower slide 3 at the left groove LG.
- the lower extension LE has a smaller thickness than the lower slide 3.
- the upper extension UE is positioned between the seating plate 4A and the upper slide 5 to partially cover the right groove RG and connect to the upper slide 5 in the right groove RG.
- the first and second mounting fences 6c and 6d have a height corresponding to the thickness of the battery cells 30A, 30B, 30C, and 30D from the edge of the mounting frame 7. It protrudes vertically toward the bottom and top of the respectively.
- the first and second mounting fences 6c and 6d are spaced apart by the width of the lower slide 3 or the upper slide 5 along the longitudinal direction of the mounting frame 7.
- first and second seating fences 6c, 6d are opened toward the lead seating stand 4 along the longitudinal direction of the seating frame 7.
- the first and second seating fences 6c and 6d are lead lead grooves 6a and 6b cut away to expose the bent electrode leads 25b and 25c to the outside of the cartridge 10.
- the battery cells 30A, 30B have two bonded electrode leads 25a positioned on the lead seat 4 via the first and second mounting fences 6c, 6d, and The electrode leads 25b and 26c may protrude from the lead-out grooves 6a and 6b of the first and second mounting fences 6c and 6d, respectively.
- the battery cells 30C, 30D also have two bonded electrode leads 25a positioned on the lead seat 4 via the first and second mounting fences 6c, 6d, and The electrode leads 25b and 26c may protrude from the lead-out grooves 6a and 6b of the first and second mounting fences 6c and 6d, respectively.
- the second cooling fin 8b covers the second through window 1b, is inserted into the second slits 2b through the edge of the second through window 1b, and the second slit ( It protrudes from 2b) and is bent vertically along the side wall of the seating frame 7.
- the first and second cooling fins 8a, 8b are made integral with the seating frame 7 via insert injection molding.
- the present invention is not limited to this.
- the coupling bands 9 are divided into first and second coupling bands 9a and 9b.
- the first and second couplers 9a and 9b protrude from sidewalls of the seating frame 7 along the longitudinal direction of the seating frame 7 and face each other diagonally.
- the first and second couplers 9a and 9b are used for screwing together the cartridges 10 when the cartridges 10 are sequentially stacked in plurality.
- the battery cells 30A, 30B, 30C, 30D are located in the first and second seating fences 6a, 6b, respectively.
- the battery cells 30A and 30C surround the first cooling fin 9a in the sand position
- the battery cells 30B and 30D surround the second cooling fin 9b in the sand position.
- FIG. 6 is a partial perspective view partially illustrating a coupling relationship between the cartridge stack of FIG. 2 and the plurality of battery cells and the first and second intermediate sensing structures
- FIG. 7 is taken along the cutting line II-II ′ of FIG. 6.
- a cartridge stack is shown to expose the top battery cell.
- FIG. 8 is an exploded cross-sectional view showing the cartridges, the battery cells, and the first and second intermediate sensing structures of FIG. 7, and FIG. 9 is a view of the cartridge, the battery cells, and the first and second intermediate sensing structures in FIG. 8. Partial perspective view partially showing the coupling relationship.
- the first and second intermediate sensing structures 50 and 70 are inserted into the left groove portion LGP and the right groove portion RGP respectively positioned in the center region of the cartridge stack 10A. do.
- the first intermediate sensing structure 50 is inserted into the left groove LGP through the first intermediate connection 47.
- the second intermediate sensing structure 70 is inserted into the right groove RGP through the second intermediate connection 67.
- the first intermediate connection portion 47 has a plurality of first fingers 46.
- One first finger 46 has a first connection slit 45 formed of a groove having a ' ⁇ ' shape at its end.
- Two adjacent first fingers 46 define one first insertion guide slit 43.
- the first insertion guide slit 43 and the first connecting slit 45 are opened toward the left groove LG. That is, the first insertion guide slit 43 is opened toward the opposing lead seat 4, and the first connecting slit 45 is opened toward the electrode lead 25 of the opposing battery cell 30. do.
- each of the first and second end sensing structures 97 and 99 may sense a voltage of the battery cell 30 to transmit an electrical signal to a battery management system (not shown).
- the side plates 100 and 110 may be disposed on the heat transfer pads 91 and 93.
- the side plates 120 and 130 may be screwed with the lower and upper end plates 95A and 95B.
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (20)
- 길이 방향을 따라 순차적으로 위치되는 한 쌍의 관통 윈도우, 그리고 상기 한 쌍의 관통 윈도우 사이에서 폭 방향으로 순차적으로 위치되는 하부 활주대, 리드 안착대와 상부 활주대를 포함하는 안착 프레임; 및상기 한 쌍의 관통 윈도우를 각각 덮는 냉각핀들을 포함하고,상기 하부 활주대와 상기 상부 활주대는 상기 리드 안착대의 좌측과 우측에 각각 위치되어 대각선으로 서로 마주하는 것을 특징으로 하는 카트리지.
- 제1항에 있어서,상기 안착 프레임은 관통 윈도우에 인접하는 양 측벽을 각각 관통하는 슬릿들을 가지고,슬릿은 관통 윈도우와 연통하는 것을 특징으로 하는 카트리지.
- 제2항에 있어서,냉각핀은 상기 슬릿들에 삽입되어 상기 안착 프레임의 상기 양 측벽을 따라 수직으로 절곡하는 것을 특징으로 하는 카트리지.
- 제1항에 있어서,상기 안착 프레임은 상기 한 쌍의 관통 윈도우 사이에서 상기 폭 방향으로 좌측 홈과 우측 홈을 가지고,상기 하부 활주대와 상기 상부 활주대는 상기 좌측 홈 아래와 상기 우측 홈 위에 각각 위치되어 상기 좌측 홈과 상기 우측 홈을 부분적으로 덮는 것을 특징으로 하는 카트리지.
- 제4항에 있어서,상기 리드 안착대는 상기 하부 활주대와 상기 상부 활주대 사이에 위치되어 상기 좌측 홈과 상기 우측 홈에서 상기 하부 활주대와 상기 상부 활주대와 접촉하는 것을 특징으로 하는 카트리지.
- 제4항에 있어서,상기 리드 안착대는 상기 좌측 홈과 상기 우측 홈 사이에 안착판, 상기 안착판의 하부로부터 상기 좌측 홈으로 연장되며 상기 하부 활주대에 연결되는 하부 연장 부와, 상기 안착판의 상부로부터 상기 우측 홈으로 연장되며 상기 상부 활주대에 연결되는 상부 연장 부를 가지는 것을 특징으로 하는 카트리지.
- 제6항에 있어서,상기 하부 연장 부는 상기 하부 활주대보다 더 작은 두께를 가지고,상기 상부 연장 부는 상기 상부 활주대보다 더 작은 두께를 가지는 것을 특징으로 하는 카트리지.
- 제1항에 있어서,상기 안착 프레임은 상기 한 쌍의 관통 윈도우를 각각 둘러싸는 안착 펜스들을 더 포함하고,안착 펜스는 상기 안착 프레임의 가장자리를 따라 위치되어 상기 안착 프레임의 하부 및 상부를 향해 돌출하는 것을 특징으로 하는 카트리지.
- 제8항에 있어서,상기 안착 펜스는 상기 리드 안착대를 향해 개구되고, 상기 리드 안착대의 반대 편에서 상기 안착 프레임의 하부 및 상부에 리드 인출 그루브들을 각각 가지는 것을 특징으로 하는 카트리지.
- 제8항에 있어서,상기 안착 펜스들은 상기 안착 프레임의 상기 길이 방향에서 상기 하부 활주대 또는 상기 상부 활주대의 폭으로 이격되는 것을 특징으로 하는 카트리지.
- 순차적으로 적층되는 복수의 카트리지를 포함하는 카트리지 적층체로서, 각 카트리지는 길이 방향을 따라 순차적으로 위치되는 한 쌍의 관통 윈도우, 그리고 상기 한 쌍의 관통 윈도우 사이에서 폭 방향으로 순차적으로 위치되는 좌측 홈, 리드 안착대와 우측 홈을 가지는 안착 프레임, 및 상기 한 쌍의 관통 윈도우를 각각 덮는 냉각핀들을 포함하는 카트리지 적층체;상기 각 카트리지의 상기 안착 프레임의 상부에 또는 하부 및 상부의 각각에 두 개씩 배치된 전지 셀들로서, 각 전지 셀은 서로에 대해 반대 방향으로 향하는 한 쌍의 전극 리드를 포함하고, 동일 레벨에 위치되는 두 개의 전지 셀에서, 서로 마주보는 전극 리드들의 접합된 단부들은 상기 리드 안착대 상에 위치되고, 일 측의 하나의 전극 리드는 상기 카트리지 적층체의 전면 측으로 노출되고, 타 측의 하나의 전극 리드는 상기 카트리지 적층체의 후면 측으로 노출되는 전지 셀들;상기 각 카트리지의 좌측 홈과 우측 홈에 삽입되고, 상기 복수의 카트리지에서 전극 리드들의 접합된 단부들과 엇갈리게 전기적으로 접속하는 제1 및 제2 중간 센싱 구조물; 및상기 카트리지 적층체의 상기 전면 측과 상기 후면 측에 각각 위치되어 상기 전면 측으로 노출되는 전극 리드들 그리고 상기 후면 측으로 노출되는 전극 리드들과 전기적으로 접속하는 제1 및 제2 말단 센싱 구조물을 포함하는 것을 특징으로 하는 전지 모듈.
- 제11항에 있어서,상기 복수의 카트리지 중에서, 최 상단 카트리지의 두께는 나머지 카트리지들의 각각의 두께의 절반인 것을 특징으로 하는 전지 모듈.
- 제11항에 있어서,상기 복수의 카트리지 중에서 최 상단 카트리지 아래에 있는 각각의 카트리지는 상기 리드 안착대의 좌측 및 우측에 각각 위치되어 대각선으로 마주하는 하부 활주대와 상부 활주대를 가지는 것을 특징으로 하는 전지 모듈.
- 제13항에 있어서,상기 하부 활주대는 상기 좌측 홈 아래에 위치되어 상기 좌측 홈을 부분적으로 덮고,상기 상부 활주대는 상기 우측 홈 위에 위치되어 상기 우측 홈을 부분적으로 덮고,상기 리드 안착대는 상기 좌측 홈을 통해 상기 하부 활주대에 그리고 상기 우측 홈을 통해 상기 상부 활주대에 연결되는 것을 특징으로 하는 전지 모듈.
- 제11항에 있어서,상기 안착 프레임은 관통 윈도우에 인접한 양 측벽에 각각 위치되는 슬릿들을 더 포함하고,냉각 핀은 상기 관통 윈도우의 가장 자리를 통해 상기 슬릿들에 삽입되며 상기 슬릿들로부터 돌출되어 상기 안착 프레임의 상기 양 측벽을 따라 수직으로 절곡하고, 두 개의 전지 셀들에 의해 샌드 위치의 구조로 둘러싸이는 것을 특징으로 하는 전지 모듈.
- 제11항에 있어서,상기 안착 프레임은 상기 각 카트리지의 상기 상부 또는 상기 하부 및 상기 상부에 안착 펜스를 더 포함하고,상기 안착 펜스는, 상기 각 전지 셀의 두께에 대응되는 높이로 수직하게 돌출하는 것을 특징으로 하는 전지 모듈.
- 제11항에 있어서,상기 안착 프레임은 동일 레벨에 위치되는 상기 두 개의 전지 셀을 각각 둘러싸는 안착 펜스들을 더 포함하고,각 안착 펜스는 상기 리드 안착대를 향해 개구되고, 상기 리드 안착대의 반대 편에 리드 인출 그루브를 가지는 것을 특징으로 하는 전지 모듈.
- 제11항에 있어서,상기 전지 셀들은 상기 카트리지 적층체의 상기 전면 측과 상기 후면 측에 노출된 전극 리드들에 의해 전기적으로 직렬로 연결되는 것을 특징으로 하는 전지 모듈.
- 제13항에 있어서,제1 중간 센싱 구조물은 상기 복수의 카트리지의 각각의 좌측 홈에 삽입되는 제1 중간 접속부, 그리고 상기 제1 중간 접속부와 결합된 제1 이동 저지부를 포함하는 것을 특징으로 하는 전지 모듈.
- 제19항에 있어서,상기 제1 중간 접속부는 복수의 제1 핑거, 각각의 제1 핑거의 단부에 제1 접속 슬릿과, 두 개의 인접한 제1 핑거 사이에 제1 삽입 가이드 슬릿을 가지고,상기 제1 접속 슬릿은 상기 서로 마주보는 전극 리드들의 접합된 단부들을 향해 개구되고,상기 제1 삽입 가이드 슬릿은 마주보는 리드 안착대를 향해 개구되는 것을 특징으로 하는 전지 모듈.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN201680017350.6A CN107431160B (zh) | 2015-06-19 | 2016-06-13 | 盒和具有该盒的电池模块 |
EP16811883.4A EP3264493B1 (en) | 2015-06-19 | 2016-06-13 | Cartridge and battery module having same |
PL16811883T PL3264493T3 (pl) | 2015-06-19 | 2016-06-13 | Wkład i mający go moduł akumulatorowy |
US15/555,140 US10530020B2 (en) | 2015-06-19 | 2016-06-13 | Cartridge with mount frame having lead mounting board and lower and upper sliding boards and battery module having same |
JP2017550212A JP6480006B2 (ja) | 2015-06-19 | 2016-06-13 | カートリッジ及びそれを含む電池モジュール |
Applications Claiming Priority (2)
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KR1020150087563A KR102009443B1 (ko) | 2015-06-19 | 2015-06-19 | 카트리지 및 이를 포함하는 전지 모듈 |
KR10-2015-0087563 | 2015-06-19 |
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WO2016204470A1 true WO2016204470A1 (ko) | 2016-12-22 |
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PCT/KR2016/006270 WO2016204470A1 (ko) | 2015-06-19 | 2016-06-13 | 카트리지 및 이를 포함하는 전지 모듈 |
Country Status (7)
Country | Link |
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US (1) | US10530020B2 (ko) |
EP (1) | EP3264493B1 (ko) |
JP (1) | JP6480006B2 (ko) |
KR (1) | KR102009443B1 (ko) |
CN (1) | CN107431160B (ko) |
PL (1) | PL3264493T3 (ko) |
WO (1) | WO2016204470A1 (ko) |
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JP7045592B2 (ja) | 2018-03-07 | 2022-04-01 | エルジー エナジー ソリューション リミテッド | バッテリーモジュール、これを含むバッテリーパック及び該バッテリーパックを含む自動車 |
US11522246B2 (en) | 2018-03-07 | 2022-12-06 | Lg Energy Solution, Ltd. | Battery module, battery pack including same battery module, and automobile including same battery pack |
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Also Published As
Publication number | Publication date |
---|---|
KR102009443B1 (ko) | 2019-08-12 |
EP3264493A4 (en) | 2018-08-01 |
US20180048033A1 (en) | 2018-02-15 |
EP3264493B1 (en) | 2019-09-11 |
CN107431160B (zh) | 2020-09-08 |
JP2018513528A (ja) | 2018-05-24 |
KR20160149836A (ko) | 2016-12-28 |
CN107431160A (zh) | 2017-12-01 |
EP3264493A1 (en) | 2018-01-03 |
JP6480006B2 (ja) | 2019-03-06 |
PL3264493T3 (pl) | 2020-05-18 |
US10530020B2 (en) | 2020-01-07 |
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