Classifications

• • 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
  • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
  • H01M50/287—Fixing of circuit boards to 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
  • H01M50/10—Primary casings; Jackets or wrappings
  • H01M50/172—Arrangements of electric connectors penetrating the casing
  • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
  • H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag 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
  • H01M50/20—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
• • 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
• • 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
  • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
• • 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
  • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
• • 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
• • 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
  • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
• • 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
  • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
• • 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
• • 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
  • H01M50/543—Terminals
• • 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
  • H01M50/543—Terminals
  • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
  • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
• • 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
  • H01M50/572—Means for preventing undesired use or discharge
  • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
  • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
• • 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
  • H01M50/572—Means for preventing undesired use or discharge
  • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
  • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
  • H01M50/593—Spacers; Insulating plates
• • 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 present application relates to the field of battery technology, and in particular to a battery assembly structure and a battery module.
• Soft-pack batteries consist of a liquid lithium-ion battery coated in a polymer shell. They offer advantages such as excellent safety, light weight, and flexible design. They are widely used as replaceable batteries in portable appliances, power tools, and other applications. To meet device requirements, soft-pack battery assembly designs can be used in devices with either external or internal replaceable batteries.
• soft-pack batteries used in external-battery or internal-battery devices cannot meet the needs of high-power devices through series or parallel combination, and the cost is high and the replacement assembly process is complicated.
• the present application provides a battery module, comprising a soft-pack battery cell group and a battery assembly structure as described above; the soft-pack battery cell group is connected to the battery assembly structure.
• FIG1 is a schematic diagram of the three-dimensional structure of a battery assembly structure according to an embodiment of the present application.
• FIG5 is an enlarged structural diagram of point A in FIG4 ;
• connection should be understood in a broad sense.
• connect can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components.
• the bracket 100 can be used to fix the electrical connection plate 200, and the bracket 100 can be an insulating bracket 100 structure made of metal or non-metallic material.
• the outer surface of the bracket 100 can be covered with an insulating layer to prevent the bracket 100 from short-circuiting with the electrical connection part.
• the bracket 100 is provided with a first through-hole group 102, and the first through-hole group 102 can be composed of a plurality of first through-holes. The number of first through-holes can be determined according to the number of second connection terminals included in the second connection terminal group 204.
• the soft-pack battery group 400 includes two soft-pack battery cells 402.
• the first positive connection terminal of the first group is connected to the first negative connection terminal of the second group
• the first positive connection terminal of the second group is connected to the total positive connection terminal of the second connection terminal group 204
• the first negative connection terminal of the first group is connected to the total negative connection terminal of the second connection terminal group 204.
• the two soft-pack battery cells 402 are connected and assembled in parallel.
• the first positioning group and the bracket 100 may be integrally formed, for example, the first positioning group may be composed of a plurality of protrusions.
• the second positioning group and the electrical connection plate 200 may be integrally formed, for example, the second positioning group may be composed of a plurality of grooves, with the grooves of the electrical connection plate 200 being used to accommodate corresponding protrusions on the bracket 100, thereby positioning the electrical connection plate 200 on the bracket 100.
• the second positioning group on the electrical connection plate 200 can be aligned with the first positioning group on the bracket 100 for assembly, so that the electrical connection plate 200 can be installed on the bracket 100 in a predetermined direction, avoiding incorrect assembly of the electrical connection plate 200 and causing incorrect connection between the soft-pack battery cell group 400 and the electrical connection plate 200.
• the first positioning group includes several first positioning portions 106
• the second positioning group includes several second positioning portions 208; each second positioning portion 208 is distributed on the first side of the electrical connection board 200; each second positioning portion 208 is arranged one by one corresponding to each first positioning portion 106.
• the first positioning portion 106 may be a convex structure, and the second positioning portion 208 may be a groove structure.
• the first positioning portions 106 are distributed on the same side of the bracket 100.
• the first side of the electrical connection board 200 may be a long side of the electrical connection board 200.
• the first positioning group includes two first positioning portions 106, and one first positioning portion 106 is arranged adjacent to the first end of the same side of the bracket 100, and the other first positioning portion 106 is arranged adjacent to the second end of the same side of the bracket 100;
• the second positioning group includes two second positioning portions 208, and one second positioning portion 208 is arranged adjacent to the first end of the first side of the electrical connection board 200, and the other second positioning portion 208 is arranged adjacent to the second end of the first side of the electrical connection board 200.
• the first positioning group also includes a plurality of third positioning portions 108
• the second positioning group also includes a plurality of fourth positioning portions 212; each fourth positioning portion 212 is distributed on the second side of the electrical connection board 200; each fourth positioning portion 212 is arranged one by one corresponding to each third positioning portion 108.
• the third positioning portion 108 may be a convex block structure, and the fourth positioning portion 212 may be a groove structure.
• the size of the third positioning portion 108 is larger or smaller than the size of the first positioning portion 106, and the size of the third positioning portion 108 is larger or smaller than the size of the fourth positioning portion 212, and the fourth positioning portion 212 is configured to cooperate with the corresponding third positioning portion 108.
• the two fourth positioning portions 212 on the electrical connection board 200 can be assembled one-to-one with the two third positioning portions 108 on the bracket 100, so that the electrical connection board 200 can be positioned and installed on the bracket 100 in a predetermined direction, further improving the accuracy of the positioning and assembly of the electrical connection board 200 and the bracket 100.
• the bracket 100 is further provided with a first limiting group 112 ; the first limiting group 112 is configured to limit the electrical connection plate 200 .
• the first position-limiting group 112 may include two position-limiting members, which are disposed oppositely on the bracket 100.
• the position-limiting members and the bracket 100 may be integrally formed.
• the position-limiting members may be snap-fit structures, with one position-limiting member being used to engage the third side of the electrical connection board 200, and the other position-limiting member being used to engage the fourth side of the electrical connection board 200, thereby securing the electrical connection board 200 to the bracket 100 and achieving a secure assembly of the electrical connection board 200.
• the third side and the fourth side of the electrical connection board 200 are opposite each other.
• the bracket 100 is further provided with a guide member 114
• the soft-pack battery group 400 includes a plurality of soft-pack battery cells 402, and each soft-pack battery cell 402 is respectively connected to the first connection terminal group 202; the guide member 114 is configured to guide the rotation of each soft-pack battery cell 402.
• the positive terminal and negative terminal of the soft-pack battery cell 402 are respectively provided with corresponding electrode connecting sheets 404, wherein the positive terminal and negative terminal of the soft-pack battery cell 402 can be elastic metal sheets, such as nickel sheets.
• An extension plate 406 is provided on the first end face of the soft-pack battery cell 402, and the electrode connecting piece 404 corresponding to the positive end and the electrode connecting piece 404 corresponding to the negative end of the soft-pack battery cell 402 are respectively provided on the extension plate 406, and the extension plate 406 is perpendicular to the first end face; the first end face of the soft-pack battery cell 402 is also provided with a guide plate, which is perpendicular to the first end face and guides perpendicular to the extension plate 406.
• the guide plate and the extension plate 406 are an integrally formed structure.
• the guide surface 116 of the guide member 114 is parallel to the guide plate of the soft-pack battery cell 402, and the guide surface 116 of the guide member 114 is adjacent to the guide plate.
• the soft-pack battery cell 402 can be rotated along the guide surface 116 of the guide member 114, thereby realizing the rotational assembly of the soft-pack battery cell 402, thereby improving the convenience of assembling multiple soft-pack battery cell groups 400.
• the battery assembly structure further includes a shell 300; the bracket 100 is further provided with a mounting portion 302; the shell 300 is configured to wrap the soft-pack battery cell group 400, and the first end of the shell 300 is provided on the mounting portion 302 of the bracket 100.
• the housing 300 may be, but is not limited to, a plastic exterior, for example, the housing 300 may be a heat shrink tubing.
• the mounting portion 302 may be an annular rib structure.
• a battery module including a soft-pack battery cell group 400 and a battery assembly structure as described above; the soft-pack battery cell group 400 is connected to the battery assembly structure.
• the present application fixes and supports the electrical connection plate 200 through the bracket 100, and connects the soft-pack battery group 400 through the first connection terminal group 202 of the electrical connection plate 200, so that the soft-pack battery cells 402 included in the soft-pack battery group 400 can be connected in series or in parallel to meet the use of high-power equipment.
• the second connection terminal group 204 of the electrical connection plate 200 is arranged corresponding to the first through-hole group 102 of the bracket 100, and the electrical load or external power supply can be directly connected to the second connection terminal group 204 through the first through-hole group 102, thereby realizing electrical connection between the electrical load or external power supply and the soft-pack battery group 400, thereby simplifying the replacement and assembly process of the soft-pack battery cells 402.
• the positive terminal and the negative terminal of the soft-pack battery cell 402 are respectively provided with electrode connecting pieces 404 , and the electrode connecting pieces 404 can be elastic metal sheets.
• An extension plate 406 is provided on the first end face of the soft-pack battery cell 402, and the electrode connecting piece 404 corresponding to the positive end and the electrode connecting piece 404 corresponding to the negative end of the soft-pack battery cell 402 are respectively provided on the extension plate 406.
• the extension plate 406 is perpendicular to the first end face, so that the electrode connecting piece 404 and the first end face of the soft-pack battery cell 402 are spaced apart, which facilitates the connection of the electrode connecting piece 404 of the soft-pack battery cell 402 to the first connection terminal group 202 respectively, thereby improving the assembly convenience of the soft-pack battery cell 402.
• each soft-pack battery cell 402 can be connected in series or in parallel to meet the use of high-power equipment.
• the second connection terminal group 204 of the electrical connection plate 200 is set to correspond to the first through-hole group 102 of the bracket 100.
• the electrical load or external power supply can be directly connected to the second connection terminal group 204 through the first through-hole group 102, thereby realizing electrical connection between the electrical load or external power supply and the soft-pack battery cell group 400, thereby simplifying the replacement assembly process of the soft-pack battery cell 402.
• the soft-pack battery cell assembly 400 further includes a spacer 500 .
• the spacer 500 is disposed between the first end surface of the soft-pack battery cell 402 and the electrode connecting sheet 404 .
• the spacer 500 may be EVA foam. It serves to insulate the electrode connection sheet 404 from the first end face of the soft-pack battery cell 402. Placing the spacer 500 between the first end face of the soft-pack battery cell 402 and the electrode connection sheet 404 prevents the electrode connection sheet 404 from scratching the soft-pack battery cell 402, further improving the reliability and protection of the soft-pack battery cell 402.
• a guide plate is further provided on the first end surface of the soft-pack battery cell 402, the guide plate being perpendicular to the first end surface and the guide being perpendicular to the extension plate 406.
• the guide surface 116 of the guide member 114 is parallel to the guide plate of the soft-pack battery cell 402, and the guide surface 116 of the guide member 114 is adjacent to the guide plate.
• the battery module may further include components such as label components.
• a specific battery module may include more components than those described in the above embodiments, or may combine certain components, or have a different component arrangement.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Battery Mounting, Suspending (AREA)
• Connection Of Batteries Or Terminals (AREA)

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• 2024
  • 2024-04-03 CN CN202420690315.2U patent/CN222654116U/zh active Active
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  • 2024-09-12 JP JP2024157950A patent/JP7793709B2/ja active Active
  • 2024-09-20 KR KR1020240127734A patent/KR20250147258A/ko active Pending

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