EP4552179A1 - Ensemble et procédé de fabrication correspondant - Google Patents
Ensemble et procédé de fabrication correspondantInfo
- Publication number
- EP4552179A1 EP4552179A1 EP23737993.8A EP23737993A EP4552179A1 EP 4552179 A1 EP4552179 A1 EP 4552179A1 EP 23737993 A EP23737993 A EP 23737993A EP 4552179 A1 EP4552179 A1 EP 4552179A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- central axis
- primary electrochemical
- rechargeable electrical
- holding
- holding portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- H01M50/204—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
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/227—Organic material
-
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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
- H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
-
- 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
- H01M50/267—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders having means for adapting to batteries or cells of different types or different sizes
-
- 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
- H01M50/289—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
-
- 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
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
Definitions
- TITLE Assembly and corresponding manufacturing process
- the present invention relates to an assembly, of the type comprising a primary electrochemical element, a rechargeable electrical element electrically connected in parallel to the primary electrochemical element, and an element for maintaining the primary electrochemical element and the rechargeable electrical element. one in relation to the other.
- Assemblies comprising a primary electrochemical element, such as a primary electrochemical cell, and a rechargeable electrical element which is electrically connected in parallel to the primary electrochemical element. These assemblies also include an element for maintaining the primary electrochemical element and the rechargeable electrical element relative to each other. This holding element is usually constituted by a flexible tape of self-adhesive and/or heat-shrinkable plastic material.
- the plastic ribbon due to its flexibility, does not define with certainty the position of the primary electrochemical element and the rechargeable electrical element relative to each other. When assembling two assemblies, the primary electrochemical element and the rechargeable electrical element can therefore have different relative positions.
- the amount of raw material used is relatively high for a given holding capacity, since the ribbon generally must make more than one complete turn around the primary electrochemical element and the rechargeable electrical element.
- the position of the electrical connection elements such as the electrical wires between the primary electrochemical element and the rechargeable electrical element is not defined.
- the assembly has a relatively limited lifespan, in particular due to the tendency of the rechargeable electrical element to age more quickly than the primary electrochemical element.
- the assembly to be capable of providing electrical energy with very significant autonomy and reliability and under conditions adverse environmental conditions, such as high humidity and temperature variations.
- the aim of the invention is to propose an electricity supply assembly which is reliable and which can be economically integrated into a device, in particular of the “internet of things” type.
- the invention aims to overcome at least one of the above drawbacks and this with economical means.
- the subject of the invention is an assembly, as indicated above, characterized in that the holding element maintains the primary electrochemical element and the rechargeable electrical element relative to each other. in a predefined spatial configuration, and in that the holding element comprises positioning surfaces defining the predefined spatial configuration, in that the positioning surfaces comprise first positioning surfaces (30), which are positioning surfaces of the primary electrochemical element, and second positioning surfaces (32), which are positioning surfaces of the rechargeable electrical element, and in that the first and second positioning surfaces (30, 32) define the predefined spatial configuration in the presence and absence of contact of the primary electrochemical element and the rechargeable electrical element with these positioning surfaces.
- the assembly may include one or more of the following characteristics:
- the assembly comprises a first central axis, which is a central axis of the primary electrochemical element, and the assembly comprises a second central axis, which is a central axis of the rechargeable electrical element, and the predefined spatial configuration comprises on the one hand either the first central axis is perpendicular to the second central axis, or the first central axis is parallel to the second central axis, or the first central axis is coaxial with the second central axis, and/or on the other hand either the rechargeable electrical element is axially centered on the first central axis, or the rechargeable electrical element is axially offset relative to the first central axis, either the rechargeable electric element is axially aligned with respect to a front face of the primary electrochemical element, or the rechargeable electric element is axially centered with respect to front faces of the primary electrochemical element;
- first holding portion adapted to hold the primary electrochemical element and comprising the first positioning surfaces
- a second holding portion adapted to hold the rechargeable electrical element and comprising the second positioning surfaces.
- the first holding portion either goes all the way around the primary electrochemical element around the first central axis, or is interrupted circumferentially around the first central axis, or is an inner annular portion of a connecting plate and /or on the other hand the second holding portion either goes all the way around the rechargeable electrical element around the second central axis, or is interrupted circumferentially around the second central axis.
- either the first holding portion extends all along the primary electrochemical element along the first central axis
- the first holding portion has a wall thickness greater than 0.200mm, in particular greater than 0.300mm
- the second holding portion has a wall thickness greater than 0.200mm, in particular greater than 0.300mm
- the holding element is made of plastic material, in particular non-heat shrinkable
- the holding element comprises a cap, provided with a peripheral wall and an end wall, and the first holding portion comprises the peripheral wall;
- the second holding portion comprises the end wall, and possibly the peripheral wall;
- the first holding portion comprises an axial stop
- the second holding portion comprises positioning projections, and/or the first holding portion comprises either a peripheral wall extending from the connecting portion, or an interior annular portion;
- the holding element comprises a connecting portion which connects the first holding portion and the second holding portion;
- the rechargeable electrical element is coated with a sealing material, in particular polymer resin;
- the sealing material has the physical property that the maximum percentage of water absorption after 30 days according to method 1 of ISO 62:2008 3rd edition is less than or equal to 1.0% and preferably less than or equal to 0.2%.
- the invention also relates to a method of manufacturing an assembly as defined above, characterized in that, comprising the following successive steps:
- Figure 1 shows, side view, a first embodiment of an assembly according to the invention
- FIG 2 shows the whole of Figure 1 in perspective
- Figure 3 shows all of Figures 1 and 2 in a section along a plane parallel to the plane of Figure 1 and perpendicular to the section plane of Figure 4;
- Figure 4 is a sectional view along line IV-IV of Figure 1, the primary electrochemical element being shown schematically in broken lines;
- FIG 5 is a perspective view of part of the holding element of all of Figures 1 to 4;
- FIG 6 Figure 6 is a plan view of a closure washer from all of Figures 1 to 4;
- Figure 7 is a schematic mid-section view of a second embodiment of an assembly according to the invention.
- Figure 8 is a schematic sectional view along line VIII-VII I of Figure 7;
- Figure 9 is a schematic mid-section view of a third embodiment of an assembly according to the invention.
- Figure 10 is a schematic sectional view along the line X-X of Figure 9;
- Figure 1 1 is a side view of a fourth embodiment of an assembly according to the invention during assembly, the rechargeable electrical element being shown in broken lines;
- Figure 12 is a top view of a fifth embodiment of an assembly according to the invention, the assembly being in the assembled state;
- Figure 13 is a side view of the fifth embodiment of an assembly according to the invention, the assembly being in the assembled state;
- Figure 14 is a rear view of the fifth embodiment of an assembly according to the invention, the assembly being in the assembled state;
- Figure 16 is a front view of the sixth embodiment of an assembly according to the invention, the primary electrical element and the rechargeable electrical element being omitted;
- Figure 17 is a side view of the sixth embodiment of an assembly according to the invention, the assembly being in the assembled state;
- Figure 18 is a front view of the sixth embodiment of an assembly according to the invention, the assembly being in the assembled state;
- Figure 19 is a schematic mid-section view of a seventh embodiment of an assembly according to the invention.
- Figure 20 is a schematic sectional view along the line XX-XX of Figure 19 of the seventh embodiment of an assembly according to the invention.
- Figure 21 is a schematic view in central section of an eighth embodiment of an assembly according to the invention.
- Figure 22 is a schematic mid-section view of a ninth embodiment of an assembly according to the invention.
- the expressions “axial”; “radial”; “Circumferentially” generally refers to the axis of the element concerned.
- Figure 1 shows an assembly according to a first embodiment of the invention, designated by the general reference 2.
- Assembly 2 is an electrochemical assembly which is adapted to supply electricity to an electrical device (not shown), such as an Internet of Things device.
- Set 2 is a module which can be manipulated autonomously, and whose constituent elements do not separate from each other, in particular at least under the effect of the force of gravity.
- Set 2 includes a primary electrochemical element 4 and a rechargeable electrical element 6 (Figure 3).
- the rechargeable electrical element 6 is electrically connected in parallel to the primary electrochemical element 4.
- the assembly 2 is provided with a power connection 8, in this case comprising two electrical wires 10 and a connector 12.
- the power connection 8 is electrically connected in parallel to the rechargeable electrical element 6 and serves to power the electrical device (not shown) by assembly 2.
- Set 2 also includes an element 14 for holding the primary electrochemical element 4 and the rechargeable electrical element 6 relative to each other.
- the primary electrochemical element 4 is a non-rechargeable electrochemical element, also referred to as a "battery", in particular an element of the Lithium - Thionyl Chloride (Lithium Thionyl Chloride) (Li-SOCh) type, Lithium - carbon dioxide. manganese (Li-MnOs), Li-SOs, Li-CFx, Li-SOsCh, or mixtures of these components.
- a battery in particular an element of the Lithium - Thionyl Chloride (Lithium Thionyl Chloride) (Li-SOCh) type, Lithium - carbon dioxide.
- manganese Li-MnOs
- Li-SOs Li-CFx
- Li-SOsCh Li-SOsCh
- the primary electrochemical element 4 comprises in this case a cylindrical peripheral surface 16 and two front faces 18, 20.
- the assembly 2 comprises a first central axis X-X, which is a central axis of the primary electrochemical element 4, and which , in this case, is the central axis of the peripheral surface 16.
- the cylindrical peripheral surface 16 has in particular a circular cross section.
- the front faces 18, 20 are substantially flat and extend perpendicular to the first central axis XX. These front faces 18, 20 have a known shape of negative pole surface, respectively positive pole of an electrochemical element.
- the primary electrochemical element 4 preferably has a shape corresponding essentially to that of a standard cell of type AA, AAA, AAAA, C, D, 3LR12/3R12, or E.
- the rechargeable electrical element 6 is for example a capacitor, a hybrid capacitor or a secondary electrochemical element, preferably of the Lilon type.
- this has for example a capacitance of between 8pF and 50 F, preferably between 10.0 mF and 30.0 mF, between 2.0 F and 4, 0 F, between 18.0 F and 22.0 F or between 38.0F and 42.0F.
- the capacitor can be a “supercapacitor” or “electrochemical double layer capacitor” (in English “Electrochemical Double Layer Capacitor (EDLC)”), or even “ultracapacitor”.
- This is a device for storing energy by accumulation of ions on two electrodes serving as ion collectors when a potential difference is imposed between them.
- the energy storage in a (super-)capacitor is of electrostatic origin, and not electrochemical as in the case of accumulators.
- the hybrid capacitor can be a hybrid capacitor, with a positive electrode of the supercapacitor type based on activated carbon, and a negative electrode of the Li-lon type with a sheet structure and which inserts/deinserts Lithium ions.
- the rechargeable electrical element 6 is a secondary electrochemical element
- it can be a rechargeable electrochemical element, preferably cylindrical, with a capacity of between 0.1 Ah and 1 Ah.
- the rechargeable electrical element 6 comprises in this case a cylindrical peripheral surface 22 and two front faces 24, 26.
- the assembly 2 comprises a second central axis Y-Y, which is a central axis of the rechargeable electrical element 6, and which , in this case, is the central axis of the peripheral surface 22.
- the cylindrical peripheral surface 22 advantageously has a circular cross section.
- the front faces 24, 26 of the rechargeable electrical element 6 are substantially flat and extend perpendicular to the second central axis Y-Y. These front faces 24, 26 can have a known shape of negative pole surface respectively positive pole of an electric cell.
- the rechargeable electrical element 6 preferably has a shape corresponding essentially to that of a capacitor, therefore with a cylindrical exterior surface.
- the diameter of the cylinder can be written in a diameter of 10mm.
- the holding element 14 holds the primary electrochemical element 4 and the rechargeable electrical element 6 relative to each other in a predefined spatial configuration. Even in the absence of the primary electrochemical element 4 and the rechargeable electrical element 6, the holding element 14 is adapted to maintain the primary electrochemical element 4 and the rechargeable electrical element 6 in the predefined spatial configuration.
- the predefined spatial configuration is a determined position and a determined orientation of the primary electrochemical element 4 and the rechargeable electrical element 6 relative to each other.
- the spatial configuration is defined with certainty for a given primary electrochemical element 4 and a rechargeable electrical element 6 by the holding element 14, even in the unassembled state of the primary electrochemical element 4 and the rechargeable electric element 6.
- the holding element 14 is an element which is rigid, that is to say it does not visibly deform under its own weight.
- the holding element 14 is in any case more rigid than self-adhesive or heat-shrinkable tapes.
- the holding element 14 includes positioning surfaces defining the predefined spatial configuration.
- the positioning surfaces include first positioning surfaces 30, which are positioning surfaces of the primary electrochemical element 4.
- the positioning surfaces also include second positioning surfaces 32, which are positioning surfaces of the electrical element rechargeable 6.
- the first positioning surfaces 30 and the second positioning surfaces 32 define the predefined spatial configuration in the presence of contact of the primary electrochemical element 4 with the first positioning surfaces 30 and in the presence of contact of the rechargeable electrical element 6 with the second positioning surfaces 32.
- the first positioning surfaces 30 and the second positioning surfaces 32 define the predefined spatial configuration also in the absence of contact of the primary electrochemical element 4 with the first positioning surfaces 30 and in the absence of contact of the rechargeable electrical element 6 with the second positioning surfaces 32. This means that even before assembly, for a given primary electrochemical element 4 and a given rechargeable electrical element 6, the predefined spatial configuration is fixed by the holding element 14.
- the holding element 14 is sufficiently rigid so as to guarantee the spatial configuration of the primary electrochemical element 4 and the rechargeable electrical element 6.
- the predefined spatial configuration includes the first central axis XX being perpendicular to the second central axis YY.
- the rechargeable electrical element 6 is axially centered on the first central axis X-X.
- the second central axis Y-Y therefore intersects the first central axis X-X.
- the axial length of the rechargeable electrical element 6 along the second axis Y-Y is essentially identical on either side of the first central axis X-X.
- the holding element 14 is provided with a first holding portion 34 adapted to hold the primary electrochemical element 4 and comprising the first positioning surfaces 30.
- the holding element 14 is provided with a second holding portion 36 adapted to hold the rechargeable electrical element 6 and comprising the second positioning surfaces 32.
- a connecting portion 37 connects the first holding portion 34 and the second holding portion 36.
- the connecting portion may be omitted or tiny, in the case where the first holding portion 34 and the second holding portion 36 are contiguous. In any case, the first holding portion 34 and the second holding portion 36 are fixed relative to each other.
- the holding element 14 comprises in this case a cap 38, provided with a peripheral wall 40 and an end wall 42.
- the cap 38 is in this case made of plastic material, in one piece and is for example manufactured by injection molding.
- the holding element 14 is made of plastic material, in particular non-thermo-shrinkable.
- the first holding portion 34 comprises the peripheral wall 40 and the first positioning surfaces 30 comprise an interior surface of the peripheral wall.
- the first holding portion 34 goes all the way around the primary electrochemical element 4 around the first central axis X-X.
- the first holding portion 34 has a wall thickness E1 greater than 0.200mm, in particular greater than 0.300mm.
- the first holding portion 34 defines the position of the primary electrochemical element 4 relative to the holding element 14 in a radial direction relative to the first central axis X-X.
- the first holding portion 34 also comprises an axial stop 44 which defines the position of the primary electrochemical element 4 relative to the holding element 14 in an axial direction relative to the first central axis XX.
- the primary electrochemical element 4 protrudes axially from the first holding portion 34 and therefore from the peripheral wall 40.
- the axial length of this protrusion is marked L1 in Figure 3. Thus, indications on the surface of the primary electrochemical element 4 can be visible.
- the peripheral wall 40 comprises at least one, in this case two, sectors with weakened wall thickness 46. These sectors with weakened wall thickness 46 allow on the one hand the passage of the electrical wires 10 from the rechargeable electrical element 6 towards the exterior of the cap 38 and on the other hand the passage of a negative interconnection element 58 (see below).
- the holding element 14 comprises in this case a separation disk 50, which axially separates the primary electrochemical element 4 and the rechargeable electrical element 6.
- the separation disk 50 is a separate component of the cap 38.
- the holding element 14 comprises, instead of the separation disk 50, a separation wall between the primary electrochemical element 4 and the rechargeable electrical element 6.
- the holding element 14 can be in one piece or in several pieces.
- the axial stop 44 is formed in this case by axial ribs or columns 52 of the cap 38, on which the separation disk 50 is applied.
- the primary electrochemical element 4 is applied axially on the separation disk 50 .
- the separation disk 50 is omitted.
- the axial stop 44 is formed for example by projections of the cap 38, such as axial ribs 52, and the primary electrochemical element 4 is applied axially on the projections of the cap 38.
- the separation disk 50 is shown in plan view in Figure 6.
- the separation disk 50 is substantially planar and its periphery is essentially complementary to the internal surface of the cap 38.
- the separation disk 50 comprises notches 54, which are in the assembled state of the separation disk 50 and the cap 38, located opposite the sectors with weakened wall thickness 46.
- the separation disk 50 is also provided with a central passage opening 56.
- the material of the separation disk 50 is advantageously compatible or identical to the material of the cap 38.
- the material of the separation disk 50 is for example also plastic.
- the assembly 2 comprises a negative interconnection element 58 electrically connecting the negative pole of the primary electrochemical element 4 to the negative pole of the rechargeable electrical element 6.
- This negative interconnection element 58 is in this case a conductive ribbon .
- the assembly 2 comprises a positive interconnection element 60 connecting the positive pole of the primary electrochemical element 4 to the positive pole of the rechargeable electrical element 6.
- This positive interconnection element 60 is in this case a conductive ribbon.
- the central passage opening 56 allows the passage of the positive interconnection element 60.
- the separation disk 50 includes a passage 62 for the two electrical wires 10, in the form of a through opening. Passage 62 is eccentric in relation to the central axis X-X.
- the second holding portion 36 comprises the end wall 42 of the cap 38.
- the second holding portion 36 has a wall thickness E2 greater than 0.200mm, in particular greater than 0.300mm.
- the second holding portion 36 in this case the end wall 42, comprises positioning projections 68 which form the second positioning surfaces 32.
- the positioning projections 68 have, in cross section, parallel to the central axis X-X and perpendicular to the Y-Y axis in the Figures, a shape flaring towards the rechargeable electrical element 6. In this case, this shape is substantially V-shaped with a truncated tip.
- the peripheral surface 22 of the rechargeable electrical element 6 is applied against the positioning projections 68 and on the second positioning surfaces 32.
- the second holding portion 36 thus defines the position of the rechargeable element 6 relative to the holding element 14 in a radial direction relative to the second central axis Y-Y.
- the rechargeable electrical element 6 is coated, in particular completely coated, with a sealing material 72.
- the sealing material 72 is a solidified pasty or liquid material and surrounds the rechargeable electrical element 6 in a watertight manner.
- the sealing material 72 is in particular made up of a polymer resin or a solidified glue, such as polyurethane, polyacrylate and their copolymers.
- the sealing material 72 advantageously fills the volume between the end wall 42 and the separation disc 50 as well as advantageously also fills small volumes and interstices.
- the sealing material during its implementation, has a viscosity less than or equal to 4500 mPa.s, preferably less than or equal to 1500 mPa.s. This facilitates the introduction of the sealing material. After installation, the sealing material hardens and becomes solid.
- the sealing material 72 extends in the cap 38 to a level completely covering the rechargeable electrical element 6, for example in the absence of a separation disk 50.
- the sealing material 72 once implemented, advantageously has the following physical property: the maximum percentage of water absorption after 30 days according to method 1 of standard ISO 62:2008 3rd edition is less than or equal to 1.0 % and preferably less than or equal to 0.2%.
- the manufacturing of set 2 includes the following steps:
- the rechargeable electrical element 6 is placed in the cap 38 such that the peripheral surface 22 is in contact with the second positioning surfaces 32.
- the rechargeable electric 6 is positioned in the cap 38 such that it is in contact with the axial positioning surface, therefore in this case the peripheral wall.
- the sealing material 72 is introduced in the non-solid state into the cap 38 until the rechargeable electrical element 6 is completely covered and the sealing material 72 is allowed to solidify.
- the separation disc 50 is added to the sealing material 72.
- the primary electrochemical element 4 is connected to the negative interconnection element 58 and to the positive interconnection element 60.
- the primary electrochemical element 4 is introduced axially into the cap 38 until the primary electrochemical element 4 is applied against the separation disk 50, or in the absence of separation disk 50 against the axial ribs 52 .
- FIGS 7 and 8 show a second embodiment of an assembly according to the invention in a schematic mid-section view and a cross-section view. Subsequently only the differences compared to the previous embodiment will be described. Similar elements bear the same references.
- the holding element 14 comprises a stepped cap 38.
- the first holding portion 34 comprises a first axial part 80 of a peripheral wall 40 having a first internal diameter D1.
- the second holding portion 36 comprises a second axial part 82 of the peripheral wall 40 having a second interior diameter D2 which is greater than the first diameter D1.
- the peripheral wall comprises an annular part 84.
- the first positioning surfaces 30 comprise the interior surface of the first axial part 80.
- the axial position of the primary electrochemical element 4 is determined by axial stops not shown.
- the second positioning surfaces 32 comprise the interior surface of the second axial part 82.
- the axial position of the rechargeable electrical element 6 is determined by the interior surface of the second axial part 82.
- the second positioning surfaces 32 further comprise a front surface of the annular part 84.
- the rechargeable electrical element 6 is applied against the annular part 84.
- the annular part can also be provided with positioning projections, such as as positioning projections 68 of the first embodiment.
- the holding element 14, in this case, does not include a separation disk 50.
- the sealing material 72 therefore coats the rechargeable electrical element 6 and the end of the primary electrochemical element 4.
- the holding element 14 can be in at least two parts, for example the end wall 42 can be a separate component and form a cover.
- Figures 9 and 10 is shown a third embodiment of an assembly according to the invention according to a schematic view in central section and a schematic view in axial section along the line X-X. Subsequently, only the differences compared to the previous embodiment will be described. Similar elements bear the same references.
- the holding element 14 comprises a non-tiered cap 38.
- the predefined spatial configuration comprises the first central axis XX being perpendicular to the second central axis YY, and the rechargeable electrical element 6 being axially offset relative to the first central axis XX.
- a transverse plane of the rechargeable electrical element 6 which extends halfway from the axial ends of the rechargeable electrical element 6 is offset from the central axis XX of the primary electrochemical element 4.
- the rechargeable electrical element 6 is axially offset relative to the first central axis XX so that the front face 24 of the rechargeable electrical element 6 is substantially aligned with the peripheral surface 16 of the primary electrochemical element 4.
- the first holding portion 34 comprises a first axial part 80 of a peripheral wall 40 having an internal diameter D.
- the second holding portion 36 comprises a second axial part 82 of the peripheral wall 40 having an internal diameter which is identical to the diameter D. Between the two axial parts 80, 82 of the peripheral wall 40, the peripheral wall 40 therefore does not have an annular part and also has the internal diameter D.
- the interior diameter D is greater than the diameter of the peripheral surface 16 of the primary electrochemical element 4.
- the peripheral wall 40 and the primary electrochemical element 4 therefore form a radial distance E relative to the central axis X-X.
- the first holding portion 34 extends all along the primary electrochemical element 4 along the first central axis X-X.
- the primary electrochemical element 4 is entirely arranged inside the peripheral wall 40 over the axial length L2.
- the first positioning surfaces 30 comprise the interior surface of the first axial part 80.
- the axial position of the primary electrochemical element 4 is determined by axial stops not shown.
- the second positioning surfaces 32 comprise the interior surface of the second axial part 82.
- the axial position of the rechargeable electrical element 6 is determined by the interior surface of the second axial part 82.
- the second holding portion 36 comprises the end wall 42 of the cap 38.
- the second positioning surfaces 32 comprise a front surface of the end wall 42 or projections not shown in a manner similar to the projections 68 of the first mode of achievement.
- the sealing material 72 coats the rechargeable electrical element 6, one end of the primary electrochemical element 4 and the primary electrochemical element 4 over substantially its entire axial height. The sealing material 72 therefore essentially occupies the entire space between, on the one hand, the primary electrochemical element 4 and the rechargeable electrical element 6 and, on the other hand, the cover 38.
- Figure 1 1 is shown a side view of a fourth embodiment of an assembly according to the invention, the rechargeable electrical element 6 being omitted. Subsequently only the differences compared to the previous embodiment will be described. Similar elements bear the same references.
- the holding element 14 comprises a connecting plate 90 forming the connecting portion 37 between the first holding portion 34 and the second holding portion 36.
- the connecting plate 90 carries an interior annular portion which cooperates by complementarity of shapes with the positive pole of the primary electrochemical element 4 (indicated in broken lines) and which is in this case the first holding portion.
- the second holding portion 36 comprises holding arms 92 extending on either side of the rechargeable electrical element 6.
- the holding arms 92 have ends which are located apart from one of the other.
- the second holding portion 36 is interrupted circumferentially around the second central axis Y-Y.
- Figures 12 to 14 show a fifth embodiment of an assembly according to the invention. This embodiment combines aspects of the first and fourth embodiments. Subsequently, only the differences compared to the first and fourth embodiment will be described. Similar elements bear the same references.
- Figure 12 is a top view of this fifth embodiment.
- the holding element 14 comprises a connecting plate 90 forming the connecting portion 37 between the first holding portion 34 and the second holding portion 36.
- the first holding portion 34 comprises the peripheral wall 40 and the first positioning surfaces 30 comprise an interior surface of the peripheral wall, similarly to the first embodiment.
- the first holding portion 34 also comprises the axial stop 44 which is formed by an annular peripheral wall extending radially inwards from the peripheral wall 40. The axial stop 44 is therefore formed by a peripheral portion adjacent to the plate. connection 90.
- the connecting plate 90 does not include an interior annular portion which cooperates by complementarity of shapes with the positive pole of the primary electrochemical element 4.
- the second holding portion 36 comprises holding arms 92 extending on either side of the rechargeable electrical element 6.
- the holding arms 92 have ends which are located at away from each other and which form second positioning surfaces 32.
- the second holding portion 36 comprises positioning projections 68 similar to the projections 68 of the first embodiment and which also form second positioning surfaces 32.
- Figures 15 to 18 show a sixth embodiment of an assembly 2 according to the invention. Subsequently, only the differences compared to the first embodiment will be described. Similar elements bear the same references.
- the spatial configuration predefined by the holding element 14 comprises the first central axis XX being parallel to the second central axis YY, but not being coaxial therewith.
- the primary electrochemical element 4 and the rechargeable electrical element 6 are arranged such that the front face 18 of the primary electrochemical element 4 and the front face 24 of the rechargeable electric element 6 are axially substantially aligned.
- the holding element 14 is a holding clip.
- the first holding portion 34 is interrupted circumferentially around the first central axis XX.
- the first holding portion 34 comprises two holding walls 100 facing each other which have partial cylinder surfaces 102 complementary to the peripheral surface of the primary electrochemical element 4.
- These holding surfaces partial cylinder 102 each extend over an angular range less than 180° around the central axis X-X and for example over an angular range between 60° and 100°.
- These partial cylinder surfaces 102 cover the primary electrochemical element 4 on at least one plane crossing the central axis X-X.
- the two retaining walls 100 radially hold the primary electrochemical element 4.
- the retaining walls 100 advantageously extend over the entire axial length of the primary electrochemical element 4.
- the first holding portion 34 also comprises an axial stop 44 in the form of two stop walls 104 which project radially inwards from one end of the holding walls 100.
- Stop walls 104 can be arranged on a single axial end or on both axial ends of the two retaining walls 100.
- the second holding portion 36 is interrupted circumferentially around the second central axis Y-Y.
- the second holding portion 36 comprises two holding walls 106 facing each other which have partial cylinder surfaces 108 complementary to the peripheral surface of the rechargeable electrical element 6.
- These holding surfaces partial cylinder 108 each extend over an angular range less than 180° around the central axis Y-Y and for example over an angular range between 60° and 100°.
- These partial cylinder surfaces 108 cover the rechargeable electrical element 6 on at least one plane crossing the central axis Y-Y.
- the two retaining walls 106 radially hold the rechargeable electrical element 6.
- the retaining walls 106 extend over the entire axial length of the rechargeable electrical element 6.
- the second holding portion 36 also comprises an axial stop in the form of two stop walls 110 which project radially inwards from one end of the holding walls 100.
- FIG. 19 and 20 a seventh embodiment of an assembly according to the invention is schematically shown in a median sectional view and an axial sectional view along the line XX-XX. Subsequently, the differences or similarities compared to the previous embodiments will be described. Similar elements bear the same references.
- the spatial configuration predefined by the holding element 14 is identical to that of the fifth embodiment of Figures 15 to 18.
- the holding element 14 is axially closed on one side and axially open on the other side.
- the second holding portion goes all the way around the rechargeable electrical element around the second central axis Y-Y.
- Figure 21 shows schematically an eighth embodiment of an assembly according to the invention. Subsequently, the differences or similarities compared to the previous embodiments will be described. Similar elements bear the same references.
- the spatial configuration predefined by the holding element 14 comprises the first central axis X-X being coaxial with the second central axis.
- the holding element 14 comprises a hollow and tubular sleeve.
- the diameters of the first positioning surfaces 30 respectively of the second positioning surfaces 32 defining the radial position of the primary electrochemical element 4 respectively of the rechargeable electrical element 6 are identical.
- the holding element 14 is open on two axial sides.
- the first positioning surfaces 30 respectively the second positioning surfaces 32 may comprise axial positioning surfaces formed for example by radial projections not shown.
- the second holding portion goes all the way around the rechargeable electrical element around the second central axis Y-Y.
- FIG 22 schematically shows a ninth embodiment of an assembly according to the invention. Subsequently, the differences compared to the eighth embodiment will be described. Similar elements bear the same references.
- the holding element 14 comprises, in addition to the hollow and tubular sleeve, a plug 112 closing an axial end of the sleeve.
- the plug 112 forms a stop axial for the rechargeable electrical element 6 and therefore defines axial positioning surfaces.
- the second holding portion goes all the way around the rechargeable electrical element around the second central axis Y-Y.
- cylindrical peripheral surface 16 has a non-circular cross section, for example a rectangle with rounded corners or ends.
- the rechargeable electrical element is axially centered in relation to the front faces of the primary electrochemical element.
- the assembly according to the invention is reliable and has a long lifespan for a given cost.
- the assembly according to the invention is also economical and easy to manufacture.
- the assembly according to the invention also makes it possible to integrate a primary electrochemical element and a rechargeable electrical element in a predetermined manner in a device to be powered by the assembly.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Computer Hardware Design (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2206732A FR3137500B1 (fr) | 2022-07-04 | 2022-07-04 | Ensemble et procédé de fabrication correspondant |
| PCT/EP2023/068221 WO2024008641A1 (fr) | 2022-07-04 | 2023-07-03 | Ensemble et procédé de fabrication correspondant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4552179A1 true EP4552179A1 (fr) | 2025-05-14 |
Family
ID=83690498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23737993.8A Pending EP4552179A1 (fr) | 2022-07-04 | 2023-07-03 | Ensemble et procédé de fabrication correspondant |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4552179A1 (fr) |
| FR (1) | FR3137500B1 (fr) |
| WO (1) | WO2024008641A1 (fr) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0244642A (ja) * | 1988-08-03 | 1990-02-14 | Fuji Photo Film Co Ltd | 一次電池ホルダ付二次電池 |
| US5401591A (en) * | 1993-11-10 | 1995-03-28 | Intermec Corporation | Shock-mitigating battery boot |
| US5909062A (en) * | 1998-03-10 | 1999-06-01 | Krietzman; Mark Howard | Secondary power supply for use with handheld illumination devices |
| JP2001313017A (ja) * | 2000-04-28 | 2001-11-09 | Sanyo Electric Co Ltd | パック電池 |
| JP4736427B2 (ja) | 2004-12-27 | 2011-07-27 | ソニー株式会社 | バッテリー装置及び電子機器 |
| JP5509684B2 (ja) * | 2009-06-03 | 2014-06-04 | ソニー株式会社 | 電池パック |
| US8686689B2 (en) | 2009-11-30 | 2014-04-01 | Samsung Sdi Co., Ltd. | Battery assembly |
| JP4803306B1 (ja) * | 2010-04-07 | 2011-10-26 | ソニー株式会社 | 電池パックおよび電池パックの製造方法 |
| KR101406240B1 (ko) | 2013-12-05 | 2014-06-12 | 엔블록셀유한책임회사 | 전자 기기의 2구 또는 4구 전지실에 일치하여 결합되는 엔블록 클립 형태의 리튬 이차전지 팩 |
| KR101446745B1 (ko) | 2014-04-30 | 2014-10-01 | 엔블록셀유한책임회사 | 엔블록 클립 형태의 리튬 이차전지 팩 전용의 충전 홀더 |
| KR101479607B1 (ko) | 2014-08-29 | 2015-01-06 | 엔블록셀유한책임회사 | 플렉서블한 전지 간 연결부를 갖는 엔블록 클립 형태의 리튬 이차전지 팩 |
| US9620761B2 (en) | 2014-09-09 | 2017-04-11 | Lg Chem, Ltd. | Battery cell interconnect and voltage sensing assembly and a battery module |
-
2022
- 2022-07-04 FR FR2206732A patent/FR3137500B1/fr active Active
-
2023
- 2023-07-03 EP EP23737993.8A patent/EP4552179A1/fr active Pending
- 2023-07-03 WO PCT/EP2023/068221 patent/WO2024008641A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3137500B1 (fr) | 2026-01-02 |
| FR3137500A1 (fr) | 2024-01-05 |
| WO2024008641A1 (fr) | 2024-01-11 |
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