CN111312958B - Highly integrated laminate polymer battery module - Google Patents
Highly integrated laminate polymer battery module Download PDFInfo
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- CN111312958B CN111312958B CN202010140340.XA CN202010140340A CN111312958B CN 111312958 B CN111312958 B CN 111312958B CN 202010140340 A CN202010140340 A CN 202010140340A CN 111312958 B CN111312958 B CN 111312958B
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- 229920000642 polymer Polymers 0.000 title claims description 51
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 77
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 77
- 230000017525 heat dissipation Effects 0.000 claims abstract description 68
- 230000000694 effects Effects 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 210000005069 ears Anatomy 0.000 claims 2
- 239000011241 protective layer Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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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
-
- 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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
-
- 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
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention belongs to the technical field of battery modules, and particularly relates to a highly integrated soft package battery module which comprises a shell and a soft package battery inside the shell; a locking cavity is arranged at the bottom end of the side face of the shell, a sliding rod is connected inside the locking cavity, a sliding plate is connected onto the sliding rod in a sliding mode, and the other end of the sliding plate is connected with a heat dissipation aluminum plate through a traction rod; the end part of the locking cavity is provided with a locking platform and a locking bolt; the top end of the shell is provided with a cover plate, and the top surface of the cover plate is provided with a support plate and a conductive plate; according to the invention, the radiating aluminum plate for assembling the soft package battery is integrated with the shell, so that the grouping efficiency of the module is improved, the generation of a deposited capacitance effect between the battery cell modules is avoided, the acquisition of the module low-voltage communication integrates the slave control function of the BMS management system through the flexible circuit board, the soft package battery module is not required to be controlled by independent slave control, and the grouping efficiency of the soft package battery module is further improved.
Description
Technical Field
The invention belongs to the technical field of battery modules, and particularly relates to a highly integrated soft package battery module.
Background
New energy automobiles become an integral trend of automobile industry development, and countries all have an intention of forbidding fuel oil automobile sales. In new energy vehicles, most of the new energy vehicles are pure electric vehicles or hybrid electric vehicles which adopt lithium ion batteries as electric energy storage devices and have practical value at present. Because of the characteristics of lithium ion batteries, hard shell batteries with steel shells, aluminum shells and plastic shells generally have potential safety hazards of explosion. The soft package battery module has the advantages of high safety, high energy density, long service life and the like, so that the hard shell battery is gradually replaced. However, the soft package battery has its own characteristics, and the soft package battery is generally externally packaged with an aluminum plastic film and sealed by a hot pressing process.
The laminate polymer battery module that commonly uses on the market adopts BMS management system independently to gather every module from the accuse mostly in the battery package, and often adopts independent heat dissipation aluminum plate and independent upper and lower support frame fixed at the in-process of equipment, and efficiency is lower in groups, is unfavorable for new forms of energy power battery trade high energy density's development trend.
In view of the above, the invention provides a highly integrated soft package battery module, which integrates a heat dissipation aluminum plate for assembling a soft package battery with a shell, thereby not only improving the grouping efficiency of the module, but also avoiding the occurrence of a storage capacitance effect between battery cell modules, and integrating the slave control function of a BMS management system into a whole through the collection of module low-voltage communication by a flexible circuit board, and the soft package battery module does not need to be controlled by an independent slave control, thereby further improving the grouping efficiency of the soft package battery module.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the highly integrated soft package battery module, the radiating aluminum plate for assembling the soft package battery is integrated with the shell, so that the grouping efficiency of the module is improved, the generation of the deposited capacitance effect between the battery cell modules is avoided, the acquisition of the low-voltage communication of the module integrates the slave control function of the BMS management system through the flexible circuit board, the soft package battery module is not required to be controlled by independent slave control, and the grouping efficiency of the soft package battery module is further improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a highly integrated soft package battery module comprises a shell and a group of soft package batteries arranged in the shell; a group of tabs are symmetrically connected to the end surface of the top end of the soft package battery; the flexible package battery comprises a shell, a group of sliding plates, a group of traction rods, a group of heat dissipation aluminum plates and a flexible package battery, wherein the shell is symmetrically provided with locking cavities along the bottom end of the corresponding side surface in the width direction of the flexible package battery, the end surfaces of two sides of each locking cavity are connected with the sliding rods, the sliding rods are connected with a group of sliding plates capable of sliding freely on the side surfaces of the sliding plates, the side surfaces, close to the shell, of the sliding plates are connected with the traction rods, the positions, corresponding to the traction rods, of the locking cavities and the shell are respectively provided with sliding chutes, the traction rods penetrate through the two sliding chutes and are connected with the heat dissipation aluminum plates, the heat dissipation; the end part of the locking cavity is provided with a locking platform, the locking platform is internally connected with a locking bolt in a threaded manner, the end part of the locking bolt extends into the locking cavity and can extrude the side surface of the adjacent sliding plate, the top end of the shell is provided with a cover plate, two ends of the top surface of the cover plate are arranged at the top of the shell through a group of fastening bolts, two slots are symmetrically arranged at the positions of the top surface of the cover plate corresponding to the lugs at two ends of the soft-package battery, the top surfaces of the cover plates at two ends of the slots are respectively and symmetrically provided with a support plate, one of the support plates is internally connected with an extrusion bolt in a threaded manner, a movable current-conducting plate is arranged between each pair of two support plates; the soft package battery module is independently collected by a BMS management system in a slave control mode, and the collection of low-voltage communication of the soft package battery module integrates the slave control functions of the BMS management system into a whole through a flexible circuit board; during working, most of the soft-package battery modules commonly used in the market are independently collected to each module in a battery pack from control by a BMS management system, and are often fixed by independent heat dissipation aluminum plates and independent upper and lower support frames in the assembling process, so that the grouping efficiency is low, and the development trend of high energy density in the new energy power battery industry is not facilitated; when the soft-package battery module is assembled, the heat dissipation aluminum plates and the side wall of the shell form a cavity which is sequentially arranged and can enable the soft-package batteries to be placed, the soft-package batteries are sequentially placed in the arranged cavity to enable the soft-package batteries to be pre-installed in the shell, then the locking bolts in the locking platform are screwed to enable the end portions of the locking bolts to move towards the inside of the locking cavity and simultaneously extrude an adjacent sliding plate, so that the sliding plate slides on the sliding rod under the action of the end portions of the locking bolts and drives the heat dissipation aluminum plates to synchronously slide through the draw bar, the heat dissipation aluminum plates move towards the adjacent heat dissipation aluminum plates and simultaneously extrude the soft-package batteries between the adjacent heat dissipation aluminum plates until the adjacent two soft-package batteries are contacted and attached to each other, and at the moment, the adjacent two heat dissipation aluminum plates can fix and lock the soft-package batteries inside the heat dissipation aluminum plates by screwing the, the assembly and grouping efficiency of the soft package battery module can be greatly improved while the assembly and grouping efficiency are convenient and fast; after the soft package battery is fixed inside the shell, the cover plate is covered on the top of the shell, two rows of lugs at the top end of the soft package battery respectively penetrate through the slots and are exposed between the two supporting plates, then the extrusion bolts are respectively screwed to enable the end parts of the extrusion bolts to apply acting force to the current conducting plates, so that the lugs penetrating through the slots are extruded when the current conducting plates move towards the opposite supporting plates under the stress, the lugs are pressed on the side surfaces of the supporting plates under the action of the current conducting plates, at the moment, the two current conducting plates are respectively in contact communication with the two rows of lugs to realize efficient parallel connection of the soft package battery inside the shell, and the grouping efficiency and the grouping quality of the soft package battery module are; simultaneously through the heat dissipation aluminum plate and the casing integration that will assemble laminate polymer battery as an organic whole, not only improved the efficiency in groups of module, also avoided simultaneously having the production of depositing the electric capacity effect between the electric core module, and the collection of module low pressure communication is integrated to an organic whole through flexible line way board with BMS management system's follow accuse function, and laminate polymer battery module need not solitary follow accuse and controls, has further improved laminate polymer battery module's efficiency in groups.
Preferably, a protective layer is arranged on the side face, attached to the soft package battery, of the heat dissipation aluminum plate, and the protective layer is made of a heat conduction silicon rubber material; the during operation, through set up the one deck inoxidizing coating on the side of laminating mutually at heat dissipation aluminum plate and laminate mutually with laminate polymer battery, make the inoxidizing coating that heat conduction silica gel material made can protect laminate polymer battery's side, reduce heat dissipation aluminum plate and laminate polymer battery surface and directly carry out the damage that the rigidity extrusion leads to laminate polymer battery, and elastic inoxidizing coating also can effectually cushion the impact force that laminate polymer battery received, reduce the damage that laminate polymer battery led to under the effect of mechanical external force, heat conduction silica gel material makes the inoxidizing coating also has good heat conduction effect simultaneously, make laminate polymer battery module have good heat dispersion, thereby the operating quality and the life of laminate polymer battery module have been improved greatly.
Preferably, two ends of the heat-radiating aluminum plate are respectively provided with a convex limiting plate, and two ends of the protective layer extend to cover the side face, attached to the soft package battery, of the limiting plate; when the soft package battery protective device works, the two ends of the heat dissipation aluminum plate are respectively provided with the convex limiting plates, so that a cavity formed by the limiting plates and the heat dissipation aluminum plate can protect the soft package battery positioned inside more comprehensively, the side slip of the soft package battery along the length direction of the soft package battery is reduced, and the stability of the soft package battery during assembly is improved; simultaneously through extending the both ends with the inoxidizing coating and cover on the limiting plate side for the elastic protection layer on the two limiting plate sides can extrude laminate polymer battery who is located between the two, has not only strengthened the fixed effect of limiting plate to laminate polymer battery both ends, also can carry out more comprehensive protection to laminate polymer battery side, has improved the stability of laminate polymer battery module during operation.
Preferably, one end of the locking bolt close to the sliding plate is arranged in a polished rod form, and one end of the locking bolt far away from the sliding plate is provided with threads capable of being connected with the locking platform; the during operation, when all being provided with the screw thread on the fastening bolt side, because fastening bolt's length is longer, the staff need waste time and energy with fastening bolt fully twist just can fix laminate battery when locking the platform inside, the form of polished rod is set to the one end through being close to the slide with locking bolt, the staff only needs to drive heat dissipation aluminum plate through promoting locking bolt outer end and making its polished rod tip to fix in advance laminate battery this moment, twist laminate battery completely when locking the platform inside through twisting the threaded part who moves fastening bolt messenger its the inner afterwards, thereby laminate battery module assembles the time high efficiency that has improved greatly.
Preferably, the length of the supporting plate is greater than that of the slot, and the height of the supporting plate is greater than that of the tab penetrating out of the slot; the during operation, because laminate polymer battery's utmost point ear passes the slot and exposes between two backup pads, make utmost point ear damage easily under external mechanical action, thereby influence laminate polymer battery's normal use, length and height through setting up the backup pad this moment, make two backup pads that exceed utmost point ear can carry out effectual protection to it, reduce utmost point ear and the direct contact extrusion of external object and the damage that receives, not only can improve laminate polymer battery module stability at the during operation, can also the life of effectual extension laminate polymer battery module.
Preferably, the top surface of the cover plate corresponding to one side of the supporting plate is provided with an L-shaped protection plate, and the top surface and the side surface of the protection plate can protect the lugs and the current conducting plate in the two supporting plates; the during operation, although the backup pad can play the guard action to stretching out the utmost point ear to the slot outer end, the top of utmost point ear and current conducting plate still contacts with external environment, thereby make utmost point ear and current conducting plate have certain risk in the use, this moment through the guard plate that sets up L shape on utmost point ear and current conducting plate top, make the top terminal surface of guard plate can effectually protect the top of utmost point ear and current conducting plate, the cavity that guard plate and two backup pads formed this moment can carry out more comprehensive parcel and protection to utmost point ear and current conducting plate, reduce utmost point ear and current conducting plate and receive external interference and damage, thereby the stability and the validity of laminate polymer battery module during operation have further been improved.
The invention has the following beneficial effects:
1. according to the invention, the radiating aluminum plate for assembling the soft package battery is integrated with the shell, so that the grouping efficiency of the module is improved, the generation of a deposited capacitance effect between the battery cell modules is avoided, the acquisition of the module low-voltage communication integrates the slave control function of the BMS management system through the flexible circuit board, the soft package battery module is not required to be controlled by independent slave control, and the grouping efficiency of the soft package battery module is further improved.
2. According to the invention, the support plate and the current-conducting plate are arranged on the cover plate, so that the current-conducting plate can be respectively in contact communication with the two rows of lugs, thus the high-efficiency parallel connection of the soft-package batteries in the shell is realized, and the grouping efficiency and the grouping quality of the soft-package battery module are further improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a top view of the soft-package battery module with the cover plate removed;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is a schematic view of the structure of the cover plate of the present invention;
FIG. 6 is an enlarged view at C in FIG. 5;
in the figure: the flexible package battery comprises a shell 1, a flexible package battery 2, a tab 21, a locking cavity 3, a sliding rod 31, a sliding plate 32, a traction rod 33, a sliding groove 34, a heat-dissipating aluminum plate 35, a protective layer 36, a limiting plate 37, a locking platform 4, a locking bolt 41, a cover plate 5, a fastening bolt 51, a slot 52, a supporting plate 53, an extrusion bolt 54, a conductive plate 55 and a protective plate 56.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.
As shown in fig. 1 to 6, the highly integrated pouch battery module according to the present invention includes a housing 1 and a set of pouch batteries 2 disposed inside the housing 1; a group of tabs 21 are symmetrically connected to the end surface of the top end of the soft package battery 2; the flexible package battery is characterized in that locking cavities 3 are symmetrically arranged at the bottom ends of the corresponding sides of the shell 1 in the width direction of the flexible package battery 2, the end faces of two sides of each locking cavity 3 are connected with sliding rods 31, a group of sliding plates 32 capable of sliding freely on the sides of the sliding rods 31 are connected on the sides of the sliding plates 32 close to the shell 1, sliding grooves 34 are respectively arranged at the positions of the locking cavities 3 and the shell 1 corresponding to the sliding rods 33, the sliding rods 33 penetrate through the two sliding grooves 34 and are connected with heat dissipation aluminum plates 35, the heat dissipation aluminum plates 35 are located inside the shell 1, the end parts of the heat dissipation aluminum plates 35 are attached to the sides of the shell 1, and the flexible package battery 2 can be assembled in a cavity formed by the two adjacent heat dissipation aluminum plates 35 and the; the end part of the locking cavity 3 is provided with a locking platform 4, the locking platform 4 is internally connected with a locking bolt 41 through threads, the end part of the locking bolt 41 extends into the locking cavity 3 and can extrude the side surface of the adjacent sliding plate 32, the top end of the shell 1 is provided with a cover plate 5, two ends of the top surface of the cover plate 5 are installed at the top of the shell 1 through a group of fastening bolts 51, two slots 52 are symmetrically arranged at the positions of the top surface of the cover plate 5 corresponding to the tabs 21 at two ends of the soft package battery 2, the top surfaces of the cover plates 5 at two ends of the slots 52 are symmetrically provided with supporting plates 53, one supporting plate 53 is internally connected with an extruding bolt 54 through threads, a movable conductive plate 55 is arranged between each pair of the two supporting plates 53, and a spring is symmetrically connected between the surface of the conductive plate; the soft package battery module is independently collected by a BMS management system in a slave control mode, and the collection of low-voltage communication of the soft package battery module integrates the slave control functions of the BMS management system into a whole through a flexible circuit board; during working, most of the soft-package battery modules commonly used in the market are independently collected to each module in a battery pack from control by a BMS management system, and are often fixed by the independent heat dissipation aluminum plates 35 and the independent upper and lower support frames in the assembling process, so that the grouping efficiency is low, and the development trend of high energy density in the new energy power battery industry is not facilitated; when the soft package battery module is assembled, the heat dissipation aluminum plates 35 and the side wall of the shell 1 in the initial state form a cavity which is sequentially arranged and can hold the soft package batteries 2, the soft package batteries 2 are pre-installed in the shell 1 by sequentially placing the soft package batteries 2 in the arranged cavity, then the locking bolts 41 in the locking table 4 are screwed to enable the end parts of the locking bolts to move towards the inside of the locking cavity 3 and simultaneously extrude the adjacent sliding plate 32, so that the sliding plate 32 slides on the sliding rod 31 under the action of the end parts of the locking bolts 41 and drives the heat dissipation aluminum plates 35 to synchronously slide through the draw bar 33, the heat dissipation aluminum plates 35 extrude the soft package batteries 2 between the adjacent heat dissipation aluminum plates 35 while moving towards the adjacent heat dissipation aluminum plates 35 until the adjacent two soft package batteries 2 are contacted and attached to each other, and at the moment, the adjacent two heat dissipation aluminum plates 35 can fix and lock the soft package batteries 2 inside the heat dissipation aluminum plates by screwing the locking bolts 41, the assembly and grouping efficiency of the soft package battery module can be greatly improved while the assembly and grouping efficiency are convenient and fast; after the soft package battery 2 is fixed inside the shell 1, the cover plate 5 is covered on the top of the shell 1, two rows of tabs 21 at the top end of the soft package battery 2 respectively penetrate through the slots 52 and are exposed between the two supporting plates 53, then the extrusion bolts 54 are respectively screwed to enable the end parts of the extrusion bolts to apply acting force to the conductive plates 55, so that the tabs 21 penetrating through the slots 52 are extruded while the conductive plates 55 are stressed to move towards the opposite supporting plates 53, the tabs 21 are pressed on the side surfaces of the supporting plates 53 under the action of the conductive plates 55, at the moment, the two conductive plates 55 are respectively in contact communication with the two rows of tabs 21 to realize efficient parallel connection of the soft package battery 2 inside the shell 1, and therefore the grouping efficiency and the grouping quality of the soft package battery module are greatly improved; simultaneously through the heat dissipation aluminum plate 35 that will assemble laminate polymer battery 2 and casing 1 integrated as an organic whole, not only improved the efficiency in groups of module, also avoided simultaneously having the production of depositing the electric capacity effect between the electric core module, and the collection of module low pressure communication is integrated to an organic whole through flexible line way board with BMS management system's follow accuse function, and the laminate polymer battery module need not solitary follow accuse and controls, has further improved laminate polymer battery module's efficiency in groups.
As an embodiment of the present invention, a protective layer 36 is disposed on a side surface of the heat-dissipating aluminum plate 35, which is attached to the pouch battery 2, and the protective layer 36 is made of a heat-conducting silicon rubber material; the during operation, through set up one deck inoxidizing coating 36 on the side of laminating mutually at heat dissipation aluminum plate 35 and laminate with laminate polymer battery 2, the inoxidizing coating 36 that makes heat conduction silica gel material can protect laminate polymer battery 2's side, reduce heat dissipation aluminum plate 35 and laminate polymer battery 2 surface and directly carry out the damage that the rigidity extrusion leads to laminate polymer battery 2, and elastic inoxidizing coating 36 also can effectually cushion the impact force that laminate polymer battery 2 received, reduce the damage that laminate polymer battery 2 led to under the effect of mechanical external force, heat conduction silica gel material makes inoxidizing coating 36 also has good heat conduction effect simultaneously, make laminate polymer battery module have good heat dispersion, thereby the operating quality and the life of laminate polymer battery module have been improved greatly.
As an embodiment of the invention, two ends of the heat-dissipating aluminum plate 35 are respectively provided with a protruding limiting plate 37, and two ends of the protective layer 36 extend to cover the side surface of the limiting plate 37, which is attached to the pouch battery 2; during operation, the two ends of the heat dissipation aluminum plate 35 are respectively provided with the convex limiting plates 37, so that a cavity formed by the limiting plates 37 and the heat dissipation aluminum plate 35 can protect the soft package battery 2 positioned inside more comprehensively, the side slip of the soft package battery 2 along the length direction of the soft package battery is reduced, and the stability of the soft package battery 2 during assembly is improved; cover on limiting plate 37 side through extending the both ends with inoxidizing coating 36 simultaneously for elasticity inoxidizing coating 36 on two limiting plate 37 sides can extrude laminate polymer battery 2 that lies in between the two, has not only strengthened the fixed effect of limiting plate 37 to laminate polymer battery 2 both ends, also can carry out more comprehensive protection to laminate polymer battery 2 side, has improved the stability of laminate polymer battery module during operation.
As an embodiment of the present invention, one end of the locking bolt 41 close to the sliding plate 32 is provided in the form of a polished rod, and one end of the locking bolt 41 far from the sliding plate 32 is provided with a thread capable of being connected with the locking table 4; the during operation, when all being provided with the screw thread on fastening bolt 51 side, because fastening bolt 51's length is longer, the staff need waste time and energy with fastening bolt 51 fully twist just can fix laminate battery 2 to locking platform 4 inside, the form of polished rod is set to through the one end that is close to slide 32 with locking bolt 41, the staff only needs to drive heat dissipation aluminum plate 35 through promoting locking bolt 41 outer end and making its polished rod tip and fix laminate battery 2 in advance, screw thread part through twisting fastening bolt 51 make it the inner twists to locking platform 4 inside simultaneously with laminate battery 2 complete fixation afterwards, thereby laminate battery module assembles the time high efficiency greatly.
As an embodiment of the present invention, the length of the support plate 53 is greater than the length of the slot 52, and the height of the support plate 53 is greater than the height of the tab 21 passing through the slot 52; the during operation, because laminate polymer battery 2's utmost point ear 21 passes slot 52 and exposes between two backup pads 53, make utmost point ear 21 damage easily under external mechanical action, thereby influence laminate polymer battery 2's normal use, length and height through setting up backup pad 53 this moment, make two backup pads 53 that exceed utmost point ear 21 can carry out effectual protection to it, reduce utmost point ear 21 and the direct contact extrusion of external object and the damage that receives, not only can improve the stability of laminate polymer battery module at the during operation, can also the life of effectual extension laminate polymer battery module.
As an embodiment of the present invention, an L-shaped protection plate 56 is disposed on the top surface of the cover plate 5 corresponding to one side of the support plate 53, and the top surface and the side surface of the protection plate 56 can protect the tabs 21 and the conductive plates 55 inside the two support plates 53; the during operation, although backup pad 53 can play the guard action to stretching out utmost point ear 21 to the slot 52 outer end, utmost point ear 21 still contacts with external environment with current conducting plate 55's top, thereby make utmost point ear 21 and current conducting plate 55 have certain risk in the use, this moment through the guard plate 56 that sets up L shape on utmost point ear 21 and current conducting plate 55 top, make the top terminal surface of guard plate 56 can effectually protect utmost point ear 21 and current conducting plate 55's top, the cavity that guard plate 56 and two backup pads 53 constitute this moment can carry out more comprehensive parcel and protection to utmost point ear 21 and current conducting plate 55, reduce utmost point ear 21 and current conducting plate 55 and receive external interference and damage, thereby soft-package battery module during operation's stability and validity have further been improved.
In operation, the heat dissipation aluminum plate 35 and the side wall of the housing 1 form a cavity which is sequentially arranged and can hold the pouch cell 2, the pouch cell 2 is pre-installed in the housing 1 by sequentially placing the pouch cell 2 in the arranged cavity, then the locking bolt 41 inside the locking platform 4 is screwed to enable the end of the locking bolt to move towards the inside of the locking cavity 3 and simultaneously extrude the adjacent sliding plate 32, so that the sliding plate 32 slides on the sliding rod 31 under the action of the end of the locking bolt 41 and drives the heat dissipation aluminum plate 35 to synchronously slide through the draw bar 33, further the heat dissipation aluminum plate 35 extrudes the pouch cell 2 between the adjacent heat dissipation aluminum plate 35 when moving towards the adjacent heat dissipation aluminum plate 35 until the adjacent two pouch cells 2 contact and attach to each other, at this time, the adjacent two heat dissipation aluminum plates 35 can fix and lock the pouch cell 2 inside the heat dissipation aluminum plate 35 by screwing the locking bolt 41, the assembly and grouping efficiency of the soft package battery module can be greatly improved while the assembly and grouping efficiency are convenient and fast; after the soft package battery 2 is fixed inside the shell 1, the cover plate 5 is covered on the top of the shell 1, two rows of tabs 21 at the top end of the soft package battery 2 respectively penetrate through the slots 52 and are exposed between the two supporting plates 53, then the extrusion bolts 54 are respectively screwed to enable the end parts of the extrusion bolts to apply acting force to the conductive plates 55, so that the tabs 21 penetrating through the slots 52 are extruded while the conductive plates 55 are stressed to move towards the opposite supporting plates 53, the tabs 21 are pressed on the side surfaces of the supporting plates 53 under the action of the conductive plates 55, at the moment, the two conductive plates 55 are respectively in contact communication with the two rows of tabs 21 to realize efficient parallel connection of the soft package battery 2 inside the shell 1, and therefore the grouping efficiency and the grouping quality of the soft package battery module are greatly improved; simultaneously through the heat dissipation aluminum plate 35 that will assemble laminate polymer battery 2 and casing 1 integrated as an organic whole, not only improved the efficiency in groups of module, also avoided simultaneously having the production of depositing the electric capacity effect between the electric core module, and the collection of module low pressure communication is integrated to an organic whole through flexible line way board with BMS management system's follow accuse function, and the laminate polymer battery module need not solitary follow accuse and controls, has further improved laminate polymer battery module's efficiency in groups.
In order to verify the assembly efficiency and the assembly effect of the pouch battery module of the present invention, the related personnel of the present application have conducted the tests of examples 1 to 3.
Example 1
Selecting soft-package batteries with the same specification and marking the soft-package batteries as A, then selecting shells and heat dissipation aluminum plates with the same shape and size and marking the shells and the heat dissipation aluminum plates as B and C respectively, and simultaneously selecting the same batch of workers to assemble the soft-package batteries A into groups, wherein the number of the groups is 10; the assembly method used in the embodiment is as follows: casing B and heat dissipation aluminum plate C independently assemble respectively, and the staff is at first through assembling laminate polymer battery A in the casing, and rethread independent heat dissipation aluminum plate C is fixed laminate polymer battery A respectively and is accomplished the assembly and be in groups, takes notes required assemble duration, loading and unloading flexibility and life in this course of the work and other relevant condition.
Example 2
Selecting soft-package batteries with the same specification and marking the soft-package batteries as A, then selecting shells and heat dissipation aluminum plates with the same shape and size and marking the shells and the heat dissipation aluminum plates as B and C respectively, and simultaneously selecting the same batch of workers to assemble the soft-package batteries A into groups, wherein the number of the groups is 10; the assembly method used in the embodiment is as follows: firstly, a heat dissipation aluminum plate C and a shell B are welded to form a row of chambers for installing the soft-package battery A, then the soft-package battery A is installed in the chambers and assembled into a group, and relevant conditions such as required assembly time, loading and unloading flexibility and service life in the working process are recorded.
Example 3
Selecting soft-package batteries with the same specification and marking the soft-package batteries as A, then selecting shells and heat dissipation aluminum plates with the same shape and size and marking the shells and the heat dissipation aluminum plates as B and C respectively, and simultaneously selecting the same batch of workers to assemble the soft-package batteries A into groups, wherein the number of the groups is 10; the assembly method used in the embodiment is as follows: the heat dissipation aluminum plate and the shell are integrated into a whole by the arrangement mode of the invention, then the soft package battery A is installed in the shell and assembled into a group, and the relevant conditions such as the assembly time, the assembly and disassembly flexibility, the service life and the like required in the working process are recorded.
Wherein, the statistical results of the tests of the above examples 1 to 3 are shown in the table one:
table one
The table I shows that when the integrated shell and the heat dissipation aluminum plate are used for installing the soft package battery in groups, the grouping efficiency of the soft package battery module can be effectively improved, the soft package battery module can be conveniently and flexibly detached, meanwhile, the service life of the grouped soft package battery module can also be effectively prolonged, and further the production efficiency and the working quality of the soft package battery module are greatly improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A highly integrated soft package battery module comprises a shell (1) and a group of soft package batteries (2) arranged inside the shell (1); the method is characterized in that: a group of tabs (21) are symmetrically connected to the end face of the top end of the soft package battery (2); the shell (1) is symmetrically provided with locking cavities (3) along the bottom end of the side surface corresponding to the width direction of the soft-package battery (2), the end surfaces of two sides of the locking cavity (3) are connected with sliding rods (31), the sliding rods (31) are connected with a group of sliding plates (32) which can freely slide on the side surfaces of the sliding plates in a sliding way, the side surface of the sliding plate (32) close to the shell (1) is connected with a traction rod (33), sliding grooves (34) are respectively arranged at the positions of the locking cavity (3) and the shell (1) corresponding to the traction rod (33), the traction rod (33) penetrates through the two sliding grooves (34) and is connected with a heat dissipation aluminum plate (35), the heat dissipation aluminum plate (35) is positioned in the shell (1) and the end parts of the heat dissipation aluminum plate are jointed with the side surface of the shell (1), the soft package battery (2) can be assembled in a cavity formed by two adjacent heat dissipation aluminum plates (35) and the shell (1); the end part of the locking cavity (3) is provided with a locking platform (4), the internal thread of the locking platform (4) is connected with a locking bolt (41), the end part of the locking bolt (41) stretches into the locking cavity (3) and can extrude the side surface of the adjacent sliding plate (32), the top end of the shell (1) is provided with a cover plate (5), the two ends of the top surface of the cover plate (5) are arranged at the top of the shell (1) through a group of fastening bolts (51), the positions of the top surface of the cover plate (5) corresponding to the lugs (21) at the two ends of the soft-package battery (2) are symmetrically provided with two slots (52), the top surfaces of the cover plates (5) at the two ends of the slots (52) are symmetrically provided with supporting plates (53), one of the supporting plates (53) is internally connected with an extrusion bolt (54), and every two are provided with movable conductive plates, springs are symmetrically connected between one surface, close to the extrusion bolt (54), of the conductive plate (55) and the side surface of the support plate (53); the soft package battery module is independently collected by a BMS management system in a slave control mode, and the collection of low-voltage communication of the soft package battery module integrates the slave control functions of the BMS management system into a whole through a flexible circuit board;
the end part of a locking bolt (41) in the locking platform (4) is moved towards the inside of the locking cavity (3) by screwing, and meanwhile, an adjacent sliding plate (32) is extruded, so that the sliding plate (32) slides on a sliding rod (31) under the action of the end part of the locking bolt (41) and drives a heat dissipation aluminum plate (35) to synchronously slide through a traction rod (33), further, the heat dissipation aluminum plate (35) moves towards an adjacent heat dissipation aluminum plate (35) and meanwhile extrudes the soft-package batteries (2) between the two adjacent soft-package batteries (2) until the two adjacent soft-package batteries (2) are contacted and attached to each other, and at the moment, the two adjacent heat dissipation aluminum plates (35) can fix and lock the soft-package batteries (2) in the two adjacent heat dissipation aluminum plates by screwing the locking bolt (41);
two rows of utmost point ears (21) on laminate polymer battery (2) top pass slot (52) respectively and expose between two backup pad (53), twist respectively afterwards and extrude bolt (54) and make its tip exert the effort to current conducting plate (55), make current conducting plate (55) atress extrude utmost point ear (21) of passing from slot (52) inside when moving to relative backup pad (53), make utmost point ear (21) by the pressfitting under the effect of current conducting plate (55) on backup pad (53) side, two current conducting plates (55) are through contacting the high-efficient parallelly connected of intercommunication realization casing (1) inside laminate polymer battery (2) with two rows of utmost point ears (21) respectively this moment.
2. The highly integrated soft package battery module according to claim 1, characterized in that: the side that heat dissipation aluminum plate (35) and laminate mutually of laminate polymer battery (2) is equipped with one deck inoxidizing coating (36), inoxidizing coating (36) are made by heat conduction silica gel material.
3. The highly integrated soft package battery module according to claim 2, characterized in that: radiating aluminum plate (35) both ends are equipped with convex limiting plate (37) respectively, just inoxidizing coating (36) both ends extend to cover on limiting plate (37) and laminate mutually side of laminate polymer battery (2).
4. The highly integrated soft package battery module according to claim 1, characterized in that: one end of the locking bolt (41) close to the sliding plate (32) is arranged in a polished rod mode, and one end of the locking bolt (41) far away from the sliding plate (32) is provided with threads capable of being connected with the locking platform (4).
5. The highly integrated soft package battery module according to claim 1, characterized in that: the length of the supporting plate (53) is larger than that of the slot (52), and the height of the supporting plate (53) is larger than that of the tab (21) which penetrates out of the slot (52).
6. The highly integrated soft package battery module according to claim 5, characterized in that: be equipped with guard plate (56) of L shape on apron (5) top surface that backup pad (53) one side corresponds, the top surface and the side of guard plate (56) can protect utmost point ear (21) and current conducting plate (55) inside two backup pads (53).
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| CN202010140340.XA CN111312958B (en) | 2020-03-03 | 2020-03-03 | Highly integrated laminate polymer battery module |
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| CN202010140340.XA CN111312958B (en) | 2020-03-03 | 2020-03-03 | Highly integrated laminate polymer battery module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101106544B1 (en) * | 2009-06-17 | 2012-01-20 | 강정욱 | Cell cartridge |
| US8679667B2 (en) * | 2010-10-29 | 2014-03-25 | GM Global Technology Operations LLC | One piece compression resistant prismatic cell |
| JP2013118115A (en) * | 2011-12-05 | 2013-06-13 | Sumitomo Electric Ind Ltd | Electrode collection part structure of battery pack, and battery pack with the same |
| US9368843B2 (en) * | 2012-06-04 | 2016-06-14 | Graftech International Holdings, Inc. | Battery pack assembly |
| CN206353554U (en) * | 2016-12-27 | 2017-07-25 | 浙江超威创元实业有限公司 | A kind of Soft Roll module water-cooling structure |
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