• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a current collector (20) comprising: - a substrate (22), the substrate (22) being made of a first material, the first material comprising a polymer, and - a grid (24) in contact with the substrate (22), the grid (24) being made of a second material, the second material comprising metallic particles.
    公开号:FR3083649A1
    申请号:FR1856207
    申请日:2018-07-05
    公开日:2020-01-10
    发明作者:Pierre Guichard；Simon BERTHOME
    申请人:Armor SAS；
    IPC主号:
    专利说明:

    Grid current collector and associated devices and methods
    The present invention relates to a current collector. The invention also relates to an assembly, an electrochemical accumulator or a supercapacitor comprising such a current collector. The invention also provides methods for manufacturing the current collector.
    An electrochemical cell conventionally comprises at least four elements: a positive electrode, a negative electrode, an electrolyte, as well as current collectors for each electrode. The set of a negative electrode and a current collector forms an anode while the set of a positive electrode and a current collector forms a cathode.
    The operating principle of these accumulators is based on the reversible storage of electrical energy into chemical energy by the implementation of two separate and coupled electrochemical reactions. It is the positive and negative electrodes, which are immersed in the electrolyte which are the seat of electrochemical reactions, called faradic. The electrodes are in particular made of active materials making it possible to store and destock the ions via oxidation and reduction reactions.
    During the discharge, the active material at the negative electrode oxidizes and on the one hand releases electrons which are routed via the current collector to the external circuit and on the other hand cations which migrate to the through the electrolyte to the positive electrode. Then, the electrons which crossed the circuit which used energy of it, and the cations are taken up by the active material with the positive electrode which is reduced. The energy density that an accumulator can release is a function of both the potential and the capacity of the electrochemical cell, both of which are directly related to the chemistry of the system. The potential of a battery is determined by the difference between the potentials of redox reactions occurring simultaneously at the positive and negative electrodes.
    Due to the development of batteries, for many applications, it is desirable to improve the conductivity of the batteries as well as their behavior over time.
    For this, the manufacturing of each part of a battery is improved.
    Generally, a current collector is made of a sufficiently conductive material to ensure electronic transport, light, thin, mechanically resistant to serve as a substrate for the electrode. For example, the current collector is a metallic sheet of iron, copper, aluminum, nickel, titanium or stainless steel or other associated alloys.
    However, the thickness of the metal collectors is generally limited by their flexibility and mechanical properties during large-scale coating and calendering for producing electrodes for accumulators or supercapacitors. In addition, such collectors can break, wrinkle or tear under these conditions of use, which makes their manufacture difficult.
    There is a need for current collectors for accumulators which are easier to manufacture.
    To this end, a current collector is proposed comprising:
    a substrate, the substrate being made of a first material, the first material comprising a polymer, and
    - A grid in contact with the substrate, the grid being made of a second material, the second material comprising metallic particles.
    According to particular embodiments, the current collector comprises one or more of the following characteristics, taken alone or according to any technically possible combination:
    - the second material comprises at least one element chosen from the list consisting of:
    - electrically conductive metals and alloys, in particular gold, silver, copper, aluminum, nickel, palladium, platinum and titanium; and
    - metal oxides such as indium tin oxide, fluorinated tin oxide, tin oxide and zinc oxide;
    - the grid is the repetition of a pattern;
    - The current collector further comprises a coating layer, the coating layer being in contact with the grid and forming a stack of layers superimposed with the substrate along a stacking direction;
    the coating layer is produced according to a second composition, the second composition comprising a conductive material and a binder material, the conductive material comprising at least one element chosen from the list consisting of:
    - carbon,
    - carbon black,
    - graphite,
    - graphene,
    - a carbon nanotube,
    - an activated carbon fiber,
    - an unactivated carbon nanofiber,
    - a metal flake,
    - a metallic powder,
    - a metallic fiber, and
    - an electrically conductive polymer.
    the content by weight of binder material is greater than or equal to 30%, preferably less than 80%;
    the content by weight of conductive material is greater than or equal to 20%, preferably less than 70%;
    - The binder material consists of one or more polymers;
    - the entire coating layer and the grid has a thickness less than or equal to 15 micrometers, preferably less than or equal to 3 micrometers;
    - The stack formed by the grid and the coating layer has a thickness less than or equal to 15 micrometers, preferably less than or equal to 3 micrometers;
    - the first material is chosen from the group consisting of:
    - a polymer comprising at least one amide function,
    - of a polymer comprising at least one imide function,
    - of a polymer comprising at least one imide function and one amide function,
    - poly (ether-ether-phenylene ketone), and
    - poly (ethylene naphthalate).
    The present description also relates to an assembly forming an anode or a cathode comprising:
    - an electrode, and
    - a current collector as described above.
    The present description also relates to an electrical energy storage device, an electrochemical accumulator or a supercapacitor, comprising an assembly as described above.
    It is also proposed a method of manufacturing a current collector comprising;
    a step of supplying a substrate, the substrate being made of a first material, the first material comprising a polymer, and
    - A step of depositing a grid in contact with the substrate, the grid being made of a second material, the second material comprising metallic particles.
    According to particular embodiments, the manufacturing process comprises one or more of the following characteristics, taken alone or according to any technically possible combination:
    - The method comprises an additional step of depositing a coating layer in contact with the grid, the coating layer being produced by depositing a composition comprising a conductive material and a binder material;
    - at least one of the deposition steps is implemented by a printing technique.
    Other characteristics and advantages of the invention will appear on reading the following description of embodiments of the invention, given by way of example only, and made with reference to the accompanying drawings, in which:
    - Figure 1 is a schematic view of an exemplary accumulator;
    - Figure 2 is a schematic sectional view of an example of a current collector forming part of an accumulator shown in Figure 1 and comprising a grid;
    FIGS. 3 to 8 are schematic views of an example of grids of the current collector of FIG. 2 viewed from above, and
    - Figure 9 is a schematic sectional view of another example of a current collector forming part of an accumulator shown in Figure 1.
    An electric accumulator 10 is shown in FIG. 1.
    The accumulator 10 is intended to be connected to other electrical accumulators to form an electrical generator of desired voltage and capacity. Such a generator is called a storage battery or more simply a battery.
    An accumulator 10 uses a reversible energy conversion technique to store the energy and return it later.
    The accumulator 10 described using an electrochemical reaction, the accumulator 10 is an electrochemical accumulator.
    In the example proposed, the accumulator 10 is a lithium-ion accumulator intended for a lithium-ion battery.
    As a variant, the accumulator 10 corresponds to another technology and is an accumulator of the Lead-Acid, Nickel-Cadmium (NiCd), Nickel-Metal Hydride (NiMH), Nickel-Zinc (NiZn), Sodium-Sulfur (Na-) type. S), Sodium-ion (Na-ion), Lithium Metal Polymer (LMP), Lithium-Polymer (Li-Ρο), Lithium-Sulfur (Li-S), or Nickel-Lithium (NiLi). Such a list is not exhaustive.
    In the case of FIG. 1, the accumulator 10 comprises an electrolyte 12, an anode 14 and a cathode 16.
    The interaction between the electrolyte 12, the anode 14 and the cathode 16 allows the accumulator 10 to function like an electrochemical accumulator.
    Electrolyte 12 is composed of different ionic salts providing ions used for charge or faradic storage reactions, carbonates and a solvent or mixture of solvents to allow the solubilization of the ions.
    In a lithium-ion battery, the ionic salts are, for example, LiPF6 (Lithium hexafluorophosphate), the Lithium bis (TriFluoromethane Sulfonyl) salt Imide (LiTFSI), LiBF4 (Lithium tetrafluoroborate) and LiBOB (lithium bis oxalate borate), LiDFOB (Lithium Difluorooxalatoborate).
    The carbonates are, for example, propylene carbonate (PC), ethylene carbonate (EC), dimethyl carbonate (DMC), methyl ethyl carbonate (EMC) or diethyl carbonate (DEC).
    We can also find, in a lower proportion, methyl acetate or methyl formate, acetonitrile, tetrahydrofuran or gamma-butyrolactone, and binary or ternary, or even quaternary, mixtures thereof, as well than ionic liquids.
    In the following, only the cathode 16 is more specifically described, knowing that all of the elements described are also valid for the anode 14 by adapting only the composition of the anode.
    The cathode 16 comprises an electrode 18 and a current collector 20.
    The electrode 18 is a layer deposited on the current collector 20.
    The electrode 18 is in contact with the electrolyte 12.
    An example of a current collector 20 is shown diagrammatically in FIG. 2.
    The current collector 20 comprises a substrate 22 and a grid 24 in contact with the substrate 22.
    The substrate 22 is a planar layer, that is to say a layer extending mainly in a plane.
    The direction perpendicular to the plane is the stacking direction. The stacking direction is symbolized by an axis Z in FIG. 2. Also, the stacking direction is denoted stacking direction Z in the following. For convenience, two transverse directions corresponding to the X and Y axes are also defined in FIG. 2, each of the transverse directions being perpendicular to the stacking direction Z and perpendicular to each other. The first transverse direction X is perpendicular to the plane of FIG. 2 while the second transverse direction Y is in the plane of FIG. 2.
    Furthermore, by definition, the thickness of a layer or of an element is in the following description the dimension along the stacking direction Z.
    The substrate 22 has a thickness less than or equal to 18 micrometers (pm). The substrate 22 is flexible.
    The term "flexible" should be understood in this context as meaning that the substrate 22 is more flexible than a metal substrate.
    The substrate 22 is made of a first material M1.
    The first material M1 comprises a polymer or a mixture of polymers.
    In the following, for simplicity, the term "a polymer" is used to mean both a single polymer and a mixture of polymers.
    The first material M1 is or consists of a polymer.
    In some embodiments, the polymer is porous.
    As a variant, the first material M1 is paper or a fabric.
    By way of example, the first material M1 is poly (ethylene terephthalate) also known by the acronym PET.
    More generally, the first material M1 is at least one material chosen from the group comprising the following compounds: polyacrylates (AA); acrylonitrile-butadienestyrene (ABS); ethylene vinyl alcohol (E / VAL); fluoroplastics (PTFE), (FEP, PFA, CTFE); impact polystyrene (HIPS: high impact polystyrene literally meaning "high impact polystyrene"); melamine formaldehyde (MF); liquid crystal polymers (LCP); polyacetal (POM); nitrile acrylo (PAN); plastic phenol-formaldehyde (PF); polyamide (PA); polyamide-imide (PAI); polyaryl ether ketone (PAEK) polyether ether ketone (PEEK); cis 1,4-poly butadiene (PBD); trans 1,4-poly butadiene (PBD); poly 1-butene (PB); polybutylene terephthalate (PBT); poly caprolactam; poly carbonate (PC); polycarbonate / acrylonitrile butadiene styrene (PC / ABS); poly 2,6-dimethyl-1,4-phenylene ether (PPE); polydicyclopentadiene (PDCP); polyester (PL); polyether ether ketone (PEEK); poly etherimide (PEI); polyethylene (PE, LDPE, MDPE, HDPE, UHDPE); polyethylene chlorinates (PEC); poly (ethylene glycol) (PEG); poly ethylene hexamethylene dicarbamate (HDPE); poly ethylene oxide (PEO); polyethersulfone (PES); poly ethylene sulphide (PES); poly ethylene terephthalate (PET); phenolics (PF); poly hexamethylene adipamide (ΡΗΜΑ); poly hexamethylene sebacamide (PHMS); polyhydroxyethylmethacrylate (HEMA); poly imide (PI such as KAPTON); poly isobutylene (PM); polyketone (PK); polylactic acid (PLA); poly methyl methacrylate (PMMA); poly methyl pentene (PMP); poly m-methyl styrene (PMMS); poly p-methyl styrene (PPMS); poly oxymethylene (POM); poly pentamethylene hexamethylene dicarbamate (PPHD); poly mphenylene; isophthalamide (PMIA); poly phenylene oxide (PPO); poly p-phenylene sulphide (PPS); poly p-phenylene terephthalamide (PPTA); polyphthalamide (PTA); poly propylene (PP); poly propylene oxide (PPDX); poly styrene (PS); polysulfone (PSU); poly tetrafluoroethylene (PTFE); poly (trimethylene terephthalate) (PTT); poly polyurethane (PU); polyvinyl butyral (PVB); polyvinyl chloride (PVC); polyvinylidene chloride (PVDC); polyvinylidene fluoride (PVDF); poly vinyl methyl ether (PVME); poly (vinyl pyrrolidone) (PVP) silicone (SI); styrene-acrylonitrile resin (SAN); thermoplastic elastomers (TPE); thermoplastic polymers (TP), and urea-formaldehyde (UF).
    Advantageously, the first material M1 can be used for temperatures up to 160 ° C.
    The use of other first M1 materials makes it possible to reinforce such a temperature stability property, for example up to a temperature of 300 ° C.
    For example, the first material M1 is a polymer comprising at least one amide function and / or at least one imide function.
    From a functional point of view, the grid 24 serves as a conductive network. Structurally, the grid 24 is an element delimiting interior zones. According to the example illustrated, the zones correspond to holes.
    As a variant, the zones are made of the same material as the grid 24 and have a lesser thickness than the grid 24.
    Grid 24 is a tiling of an elementary pattern, that is to say the repetition of an elementary pattern over the entire extent of grid 24.
    Several forms of grids 24, and in particular several elementary patterns, can be envisaged with reference to FIGS. 3 to 8.
    The elementary pattern in Figure 3 is a square, the elementary pattern in Figure 4 is a triangle, the elementary pattern in Figure 5 is a cell, the elementary pattern in Figure 6 is a cell whose opposite vertices are connected by of segments the elementary pattern in FIG. 7 is a square whose midpoints on opposite sides are connected by segments and the elementary pattern is a square provided with diagonals.
    More generally, the elementary pattern is a finite set of points, certain points of which are connected by segments.
    The grid 24 has a thickness less than or equal to 15 micrometers, advantageously less than 5 micrometers, preferably less than 3 micrometers.
    The grid 24 is made of a second material M2.
    The grid 24 is deposited in the form of a liquid ink or first composition C1.
    Said first composition C1 comprises the second material M2 (the second material M2 can be in the presence of additional elements such as binders, the assembly forming the first composition C1) which is chosen from:
    • electrically conductive metals and alloys, in particular gold, silver, copper, aluminum, nickel, palladium, platinum, titanium, iron, zinc, manganese, chromium, vanadium , or stainless steel; and • metal oxides such as copper, aluminum, indium and tin oxide, fluorinated tin oxide, tin oxide and zinc oxide or a mixture of these -this.
    Preferably, the first composition C1 comprises metallic particles.
    Preferably, the particles are nanoparticles.
    Nanoparticles are particles each dimension of which is less than 100 nanometers.
    The first composition C1 is deposited on the substrate 22 by printing methods including in particular screen printing, flexography, gravure printing, offset or inkjet, which makes it possible to coat compositions based on metallic particles .
    The operation of the accumulator 10 is in accordance with the operation of a prior art electrochemical accumulator.
    In summary, the collector 20 is formed from a relatively thin polymer substrate 22 and a conductive layer of metallic nanoparticles in the form of a grid 24 with a relatively small thickness.
    As a result, such a collector 20 allows a saving of material deposited on the substrate 22, which makes it possible to reduce the mass.
    The gain in mass also comes from the substrate 22 which is a polymeric material instead of a metallic strip. Indeed, the density of a metal is at least twice greater than the density of a polymeric material. For example, the density of copper is 8.9 g / cm 3 (grams per cubic centimeter) while the density of PET is 1.3 g / cm 3 .
    This makes it possible to obtain a thinner, lighter and more flexible collector 20 than the standard current collectors while retaining good electrical conductivity of the collector 20.
    In addition, the flexibility provided by the use of a printed polymer substrate makes it possible to envisage a finer substrate and more resistant to the constraints associated with its use.
    Thus, it could be obtained a current collector 20 adapted to operate at a higher energy density.
    Furthermore, such a collector is easy to manufacture. This appears in particular by describing an example of implementation of an example of a method of manufacturing the collector 20.
    The manufacturing process involves depositing the grid on the substrate using a printing technique, including rotary screen printing.
    Another example of a current collector 20 is illustrated in FIG. 9.
    The current collector 20 also includes a substrate 22 and a grid 24.
    The remarks relating to the substrate 22 and to the grid 24 of the current collector 20 of FIG. 2 also apply to the substrate 22 and the grid 24 of the current collector 20 of FIG. 9. These remarks are not repeated in this following.
    The current collector 20 further comprises a coating layer 26, the coating layer 26 being in contact with the grid 24 and forming a stack of layers superimposed with the substrate 22 along a stacking direction Z.
    The coating layer 26 has a thickness less than or equal to 10 μm, advantageously less than 5 μm, preferably less than 2 μm.
    In some cases, the coating layer 26 has a thickness less than the thickness of the grid 24 so that the grid 24 is visible.
    The stack formed by the grid 24 and the coating layer 26 superimposed, this stack has a thickness less than or equal to 15 μm, preferably less than 3 μm.
    The coating layer 26 is produced according to a second composition C2.
    The second composition C2 comprises a conductive material MC and a binder material ML.
    The choice of the ML binding material can vary considerably as long as the ML binding material is inert with respect to the other materials of the second composition C2. The ML binding material comprises one or more polymers chosen from thermoplastic polymers, thermosetting polymers, elastomers and mixtures thereof.
    Examples of thermoplastic polymers include, without limitation: polymers resulting from the polymerization of vinyl aliphatic or cycloaliphatic monomers, such as polyolefins (among which polyethylenes or even polypropylenes); polymers resulting from the polymerization of vinyl aromatic monomers, such as polystyrenes, polymers resulting from the polymerization of acrylic monomers and / or (meth) acrylates; polyamides; polyetherketones; polyimides; polyvinyl alcohols; fluoropolymers, and polyacrylonitrile.
    Examples of thermosetting polymers include, without limitation, thermosetting resins (such as epoxy resins, polyester resins) optionally in admixture with polyurethanes or with polyether polyols or vice versa.
    Examples of elastomeric polymers include, without limitation, natural rubbers, synthetic rubbers, styrenebutadiene copolymers (also known under the abbreviation "SBR"), ethylenepropylene copolymers (also known under the abbreviation "EPM") , silicones.
    The ML binding material comprises or is a mixture of thermoplastic polymer (s), thermosetting polymer (s) and / or elastomeric polymer (s).
    Other suitable ML binder materials include crosslinked polymers, such as those made from polymers having carboxyl groups and crosslinking agents.
    The content of ML binding material is greater than or equal to 30% by weight. The content by weight of an element X in a mixture is the ratio between the weight of element X and the weight of all the elements of the mixture.
    Preferably, the content of ML binding material is less than or equal to 80% by weight.
    Advantageously, the content of ML binding material is between 40% by weight and 70% by weight.
    The conductive material MC includes one or more type (s) of conductive elements to improve electronic conductivity.
    Examples of conductive elements include, but are not limited to, conductive carbons, carbon black, graphites, graphenes, carbon nanotubes, activated carbon fibers, non-activated carbon nanofibers, metal flakes, powders metallic, metallic fibers and electrically conductive polymers.
    The content of second conductive material MC is greater than or equal to 20% by weight.
    Preferably, the content of second conductive material MC is less than or equal to 70% by weight.
    Advantageously, the content of second conductive material MC is between 30% by weight and 60% by weight.
    The operation of the current collector 20 according to the second embodiment is similar to the operation of the current collector 20 according to the first embodiment.
    The coating layer 26 is a layer intended to protect the grid 24.
    More specifically, the coating layer 26 prevents the degradation of metallic particles in contact with corrosive components such as the electrolyte, the active charges or the solvents.
    This also makes it possible in particular to prevent the dissolution of metallic particles in the other components of the accumulator.
    On the other hand, the coating layer 26 makes it possible to improve the adhesion and the interface between the layer of active material and the current collector 20.
    The improvement of such a contact makes it possible to increase the electrical conductivity of the electrode. This implies that it becomes possible to further reduce the thickness or increase the surface of the interior areas of the grid 24, resulting in a reduction in the quantity of materials involved in the manufacture of the collector 20 and a reduction in the cost of manufacturing.
    It should also be noted that the protective capacity of the coating layer 26 makes it possible to envisage materials for the grid 24 which could not have been used in the absence of the coating layer 26 due to the risk of corrosion. .
    It is then possible to benefit from the additional advantages obtained by the use of metal particles having improved properties.
    It is also conceivable to propose that the grid 24 is made with a plurality of metallic materials, which makes it possible to reduce the cost price of the materials while preserving, or even improving, the electrical conductivity of the current collector 20.
    The use of the coating layer 26 also makes it possible to produce the grid 24 in metallic particles coated or plated with another metal. A particular example is particles of aluminum or copper coated with silver. Such metal particles have improved electrical conductivity.
    Such a collector 20 is easy to manufacture as it appears by describing an example of implementation of an example of a method of manufacturing the collector 20.
    The manufacturing process also includes previous steps, an additional step of forming the coating layer 26.
    The training step includes a step of supplying a second composition C2 and a coating step.
    The formation stage is, for example, carried out by a technique of coating the second composition C2 applied to the substrate 22 provided with the grid 24. The stage of formation of the coating layer 26 is preferably formed by a technique of coating or printing in the wet place, in particular chosen from slot5 die, rotogravure, serigraphy and flexography.
    The manufacturing process is quick and economical.
    Other embodiments are possible.
    Alternatively, the current collector 20 is part of a supercapacitor instead of an electrochemical accumulator.
    In particular, the supercapacitor is a supercapacitor with aqueous, organic and ionic liquid electrolyte.
    More generally, the current collector 20 is advantageously used in an electrical energy storage device.
    权利要求:
    Claims (15)
    [1" id="c-fr-0001]
    1Current collector (20) comprising:
    a substrate (22), the substrate (22) being made of a first material (M1), the first material (M1) comprising a polymer, and
    - A grid (24) in contact with the substrate (22), the grid (24) being made of a second material (M2), the second material (M2) comprising metallic particles.
    [2" id="c-fr-0002]
    2, - Current collector according to claim 1, in which the second material (M2) comprises at least one element chosen from the list consisting of:
    - electrically conductive metals and alloys, in particular gold, silver, copper, aluminum, nickel, palladium, platinum and titanium; and
    - metal oxides such as indium tin oxide, fluorinated tin oxide, tin oxide and zinc oxide.
    [3" id="c-fr-0003]
    3, - Current collector according to claim 1 or 2, wherein the grid (24) is the repetition of a pattern.
    [4" id="c-fr-0004]
    4, - current collector according to any one of claims 1 to 3, wherein the current collector (20) further comprises a coating layer (26), the coating layer (26) being in contact with the grid (24) and forming a stack of layers superimposed with the substrate (22) along a stacking direction.
    [5" id="c-fr-0005]
    5, current collector according to claim 4, in which the coating layer (26) is produced according to a second composition (C2), the second composition (C2) comprising a conductive material (MC) and a binder material (ML), the conductive material (MC) comprising at least one element chosen from the list consisting of:
    - carbon,
    - carbon black,
    - graphite,
    - graphene,
    - a carbon nanotube,
    - an activated carbon fiber,
    - an unactivated carbon nanofiber,
    - a metal flake,
    - a metallic powder,
    - a metallic fiber, and
    - an electrically conductive polymer.
    [6" id="c-fr-0006]
    6, - Current collector according to claim 5, wherein the content by weight of binder material (ML) is greater than or equal to 30%, preferably less than 80%.
    [7" id="c-fr-0007]
    7, - current collector according to claim 5 or 6, wherein the content by weight of conductive material (MC) is greater than or equal to 20%, preferably less than 70%.
    [8" id="c-fr-0008]
    8, - Current collector according to any one of Claims 5 to 7, in which the binder material (ML) consists of one or more polymers.
    [9" id="c-fr-0009]
    9, - current collector according to any one of claims 5 to 8, in which the assembly of the coating layer (26) and the grid (24) has a thickness less than or equal to 15 micrometers, preferably less than or equal to 3 micrometers.
    [10" id="c-fr-0010]
    10, current collector according to any one of claims 1 to 9, in which the first material (M1) is chosen from the group consisting of:
    - a polymer comprising at least one amide function,
    - of a polymer comprising at least one imide function,
    - of a polymer comprising at least one imide function and one amide function,
    - poly (ether-ether-phenylene ketone), and
    - poly (ethylene naphthalate).
    [11" id="c-fr-0011]
    11, assembly forming an anode or a cathode comprising:
    - an electrode, and
    - a current collector (20) according to any one of claims 1 to 10.
    [12" id="c-fr-0012]
    12, - Device for storing electrical energy, electrochemical accumulator or supercapacitor, comprising an assembly according to claim 11.
    [13" id="c-fr-0013]
    13. Method of manufacturing a current collector (20) comprising;
    a step of supplying a substrate (22), the substrate (22) being made of a first material (M1), the first material (M1) comprising a polymer, and
    - A step of depositing a grid (24) in contact with the substrate (22), the grid (24) being made of a second material (M2), the second material (M2) comprising
    5 metallic particles.
    [14" id="c-fr-0014]
    14, - A method of manufacturing a current collector (20) according to claim 13 comprising an additional step of depositing a coating layer (26) in contact with the grid (24), the coating layer (26) being carried out by filing a
    10 composition (C2) comprising a conductive material (MC) and a binder material (ML).
    [15" id="c-fr-0015]
    15. A method of manufacturing a current collector (20) according to claim 13, wherein at least one of the deposition steps is implemented by a printing technique.
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    同族专利:
    公开号 | 公开日
    US20200014032A1|2020-01-09|
    JP2020009764A|2020-01-16|
    CN110690453A|2020-01-14|
    BR102019013896A2|2020-02-18|
    KR20200005494A|2020-01-15|
    EP3591750A1|2020-01-08|
    FR3083649B1|2020-06-26|
    US11133509B2|2021-09-28|
    AU2019204813A1|2020-01-23|
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    优先权:
    申请号 | 申请日 | 专利标题
    FR1856207A|FR3083649B1|2018-07-05|2018-07-05|GRID CURRENT COLLECTOR AND RELATED DEVICES AND METHODS|
    FR1856207|2018-07-05|FR1856207A| FR3083649B1|2018-07-05|2018-07-05|GRID CURRENT COLLECTOR AND RELATED DEVICES AND METHODS|
    US16/502,763| US11133509B2|2018-07-05|2019-07-03|Grid current collector and associated devices and methods|
    JP2019125353A| JP2020009764A|2018-07-05|2019-07-04|Grid current collector, and related device and methods|
    BR102019013896-3A| BR102019013896A2|2018-07-05|2019-07-04|GRID CHAIN COLLECTOR AND ASSOCIATED DEVICES AND METHODS|
    AU2019204813A| AU2019204813A1|2018-07-05|2019-07-04|Grid current collector and associated devices and methods|
    EP19184682.3A| EP3591750A1|2018-07-05|2019-07-05|Current collector with gate and associated devices and methods|
    CN201910604918.XA| CN110690453A|2018-07-05|2019-07-05|Grid current collector and related apparatus and method|
    KR1020190081476A| KR20200005494A|2018-07-05|2019-07-05|Grid current collector and associated devices and methods|
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