66results about "Electrode screen printing" patented technology

An electrode manufacturing apparatus according to one aspect of the present disclosure is configured to discharge a liquid to form a resin layer or an inorganic layer on an electrode substrate which is being conveyed in a predetermined direction. The electrode manufacturing apparatus includes a detector, a liquid discharger provided downstream of the detector in the predetermined direction and configured to discharge the liquid to form the resin layer or the inorganic layer, and a controller configured to control a discharge condition of the liquid discharger. Points where a property varies are present on the electrode substrate along a direction intersecting the predetermined direction. The detector outputs pieces of detection information obtained by detecting one of the points in time series, and the controller controls the discharge condition of the liquid discharger based on combined detection information obtained by combining the pieces of detection information.

Embodiments described herein relate generally to systems and methods for continuously and / or semi-continuously manufacturing semi-solid electrodes and batteries including semi-solid electrodes. The methods include disposing a portion of a current collector material into a gap between a first arc-shaped member and a second arc-shaped member, disposed along an outside edge of a drum, and moving the first arc-shaped member with respect to the second arc-shaped member to at least partially close the gap, causing the current collector material to frictionally engage with a portion of both arc-shaped members. The method further includes dispensing a semi-solid electrode material onto a surface of the first arc-shaped member and the second arc-shaped member. Subsequently, the second arc-shaped member is moved with respect to the first one, re-establishing the gap and resulting in the formation of two discrete portions of electrode material on the surface of the current collector material.

Systems, methods, and other embodiments associated with high speed, high precision direct deposition of patterned dry powder. In one embodiment, an example apparatus includes a patterning device and a powder delivery system delivering dry powder onto an interior surface of the patterning device. The interior surface of the patterning device is configured to include a screen having top and bottom surfaces and a plurality of openings positioned between the top and bottom surfaces, whereby each opening is configured to contain a portion of the received dry powder. The bottom surface of the screen forming the exterior surface of the patterning device. The interior surface includes a blade configured to be positioned adjacent to the interior surface of the screen to force the portion of dry powder through the interior surface and into a corresponding opening of the screen thereby patterning each portion of dry powder.

Systems, methods, and other embodiments associated with high speed, high precision direct deposition of patterned dry powder. In one embodiment, an example apparatus includes an intermediate substrate having an exterior surface configured to move patterned dry powder towards a target substrate, the exterior surface further configured to move and enclose a volume, a patterning device communicably coupled to the intermediate substrate and configured to form patterned dry powder on the exterior surface of the intermediate substrate, and a pressing mechanism configured to apply heat and pressure to the patterned dry powder positioned vertically above an upper surface of the target substrate to disrupt the adhesion of the patterned dry powder positioned vertically above the upper surface of the target substrate and transfer and adhere the patterned dry powder to the upper surface of the target substrate as a fused patterned layer.

The present invention discloses a zinc ion battery and its preparation method. The preparation method includes the steps of preparing a rare earth-doped metal oxide, preparing a printing ink, screen-printing an intermediate affinity layer, screen-printing a cathode and anode, and assembling a flexible micro zinc ion battery. While regulating the structure of the metal oxide, the present invention also regulates the electrode structure, effectively constructing a conductive network and facilitating ultra-high loads. The preparation method disclosed in this application can effectively address the problems of low energy density, poor rate performance, and poor cycle stability of existing zinc ion batteries.

A method for manufacturing an electrochemical device that may be selected from the group consisting of: lithium ion batteries with a capacity greater than 1 mAh, capacitors, supercapacitors, resistors, inductors, transistors, photovoltaic cells, fuel cells, implementing a method for manufacturing an assembly comprising a porous electrode and a porous separator comprising a porous layer deposited on a substrate having a porosity comprised between 20% and 60% by volume, and pores with an average diameter of less than 50 nm.

A disclosed film electrode includes an electrode base, and an active material layer formed on the electrode base, and a resin layer adhering to at least one of a peripheral portion of the active material layer and a surface of the active material layer in a direction extending along a plane of the electrode base.

The present invention relates to a liquid ejecting apparatus, an electrode forming apparatus, a multilayer separator forming apparatus, and a liquid ejecting method, which perform printing without causing liquid to adhere to a conveyance surface in marginless printing in which not only a surface of an electrode base but also a side surface is printed. In marginless printing in which not only a surface of an electrode base but also a side surface is printed, a liquid adhering member for performing printing without causing liquid to adhere to a conveyance surface can be provided with high accuracy with a small and simple apparatus. The apparatus includes a conveyance section that conveys a base, a liquid adhering member that is provided on the conveyance section and is partially sandwiched between an end portion of the base and the conveyance section, and an ejecting section that ejects a liquid composition toward the base and the liquid adhering member, the base being inclined to a conveyance surface of the base in the conveyance section.

The present disclosure is directed to electrochemical cells having injection molded or 3D printed components, such as cathodes, anodes, and / or electrolytes, and methods for making such electrochemical cells. The cathodes, anodes, and / or electrolytes can be formed from a binder resin and various conductive and active materials, mixtures of which are injected into a mold under heat and pressure to form the components of the electrochemical cells. The cathode can include conductive metallic powder, flakes, ribbons, fibers, wires, and / or nanotubes. Further, electrochemical arrays can be formed from multiple electrochemical cells having injection molded or 3D printed components.

To provide an all-solid battery capable of achieving improvement of battery characteristics, improvement of reliability and yield rate improvement.SOLUTION: An all-solid battery comprises a multilayer chip configured by laminating solid electrolyte layers and internal electrode layers alternately in a first direction. The plurality of internal electrode layers are alternately drawn to two end faces opposed to each other in a second direction, which is orthogonal to the first direction, in the multilayer chip and a blank part is provided around the internal electrode layer. In a view in the first direction, an overlap part is formed where a peripheral edge part and the blank part of the internal electrode layer partially overlap in a third direction which is orthogonal to the first direction and the second direction. In a case where an angle formed by a straight line connecting a tip end point E1 of the internal electrode layer on the side of the blank part with a tip end point E2 of the blank part on the side of the internal electrode layer in the third direction and a straight line connecting both ends of the internal electrode layer in the third direction is defined as θ, while a thickness of the blank part is defined as t1 and a length between the tip end point E1 and the tip end point E2 in the third direction is defined as d, a relation of 0.1×t1 / tanθ≤d≤2.0×t1 / tanθ is established.SELECTED DRAWING: Figure 6

A binder powder for a non-aqueous secondary battery electrode, comprising a particulate polymer having an average primary particle diameter of 0.3 µm or more, wherein a proportion of particles having a particle diameter greater than 250 µm is 10% by weight or less.

A positive electrode layer for an all-solid-state battery includes a positive electrode current collector, and first and second positive electrode active material layer disposed on opposing surfaces of the positive electrode current collector. The first and second positive electrode active material layers include positive electrode active material particles. When straight lines perpendicular to the positive electrode current collector are drawn from the positive electrode current collector in a direction of the first and second positive electrode active material layers, an average number of positive electrode active material particles crossing each straight line is greater than 0 and less than or equal to 8. A ten-point average roughness of a surface roughness of the positive electrode layer is greater than 0 μm and less than 25.2 μm, or a maximum height of a surface roughness of the positive electrode layer is greater than 0 μm and less than 24.4 μm.

Provided are electronic circuits, comprising electrochemical cells directly integrated with other devices of the circuits, and methods of manufacturing these circuits. The direct integration occurs during cell manufacturing, which allows sharing components, reducing operation steps and failure points, and reducing cost and size of the circuits. For example, a portion of a cell enclosure may be formed by a circuit board, providing direct mechanical integration. More specifically, the cell is fabricated right on the circuit board. In the same or other examples, one or both cell current collectors extend outside of the cell boundary and used by other devices, providing direct electrical integration without a need for intermediate connections and eliminating additional failure points. Furthermore, printing one or more components of electrochemical cells, such as electrolytes and current collectors, allows achieving higher levels of mechanical and electrical integration that are generally not available in conventional cells.

A method of manufacturing a component for an energy storage or energy conversion device includes providing a sheet having a plurality of thickness-wise openings, forming a slurry including particles of a ceramic material, depositing the slurry on the sheet having the plurality of thickness-wise openings, and sintering the slurry at a sintering temperature greater than 300°C and less than or equal to 900°C.

Embodiments described herein relate generally to systems and methods for continuously and / or semi-continuously manufacturing semi-solid electrodes and batteries including semi-solid electrodes. The methods include disposing a portion of a current collector material into a gap between a first arc-shaped member and a second arc-shaped member, disposed along an outside edge of a drum, and moving the first arc-shaped member with respect to the second arc-shaped member to at least partially close the gap, causing the current collector material to frictionally engage with a portion of both arc-shaped members. The method further includes dispensing a semi-solid electrode material onto a surface of the first arc-shaped member and the second arc-shaped member. Subsequently, the second arc-shaped member is moved with respect to the first one, re-establishing the gap and resulting in the formation of two discrete portions of electrode material on the surface of the current collector material.

The present invention provides a device for actively modifying NIR radiation, the device comprising: (i) a substrate; (ii) one or more permeable polymeric membranes comprising an ionic liquid electrolyte; (iii) one or more electrodes comprising carbon nanotubes and a transition metal oxide; and (iv) a protective encapsulating layer. The present invention further provides a method for making such a device.

A method for producing a bipolar electrode includes obtaining a bipolar electrode respectively having a positive electrode mixture layer and a negative electrode mixture layer at both surfaces of an electrode foil through: a positive electrode mixture coating step of coating a positive electrode mixture coating liquid on one surface of an electrode foil and drying the positive electrode mixture coating liquid, to form a positive electrode mixture coating film; a first pressing step of pressing the electrode foil having the positive electrode mixture coating film; a negative electrode mixture coating step of coating a negative electrode mixture coating liquid on another surface of the electrode foil by a screen printing method and drying the negative electrode mixture coating liquid, to form a negative electrode mixture coating film; and a second pressing step of pressing the electrode foil having the negative electrode mixture coating film.

A method for manufacturing an electrode for a lithium secondary battery is described, as well as an electrode intermediate, and a lithium secondary battery including the electrode. The method comprises forming an electrode current collector layer and an electrode active material layer on one surface or both surfaces of the electrode current collector layer; preparing a transfer laminate in which a base material film, a transfer force enhancing layer, and a lithium metal layer are sequentially stacked; forming a transfer start portion by removing the lithium metal layer in a transverse direction (TD); transferring the lithium metal layer having the transfer start portion formed thereon, on top of the electrode active material layer; and removing the base material film.

A binder powder for nonaqueous secondary battery electrodes, which contains a particulate polymer having an average primary particle diameter of 0.3 [mu] m or more, and in which the proportion of particles having a particle diameter greater than 250 [mu] m is 10% by weight or less.

The invention discloses a flexible high-capacity water-based zinc battery and a preparation method and application thereof, and belongs to the technical field of batteries, the water-based zinc battery comprises a positive electrode, a negative electrode and a hydrogel electrolyte arranged between the positive electrode and the negative electrode, the positive electrode and the negative electrode both adopt printed three-dimensional high-load electrodes, a commercially available fabric is used as a substrate, electrode slurry is printed on the substrate, and the hydrogel electrolyte is formed. The loading amount of the electrode active material in the electrode slurry exceeds 10 mg cm. The hydrogel electrolyte is a poly-zwitterionic electrolyte. Through combination of the printed electrode and the poly-zwitterionic electrolyte, low-cost, green and large-scale preparation of the water-based zinc battery is realized, and the water-based zinc battery is suitable for wearable equipment, flexible electronic products and distributed energy storage systems.

A method of manufacturing an electrode precursor (P) of an electrochemical cell comprises the steps of: - providing a powdered solid substance (S) comprising at least one electrode active material; 5 - feeding a current collector metal foil (2) to an inkjet printing station (3) along a transport direction (T); - inkjet printing a hardenable liquid substance (L) on said metal foil (2) to form a print pattern on the metal foil (2); - applying the powdered solid substance (S) on the hardenable liquid substance 0 (L) printed on the metal foil (2); and - hardening the hardenable liquid substance (L) so as to form on the metal foil (2) a layer of electrode active material comprising the electrode active material.

The present invention relates to a method for manufacturing an electrochemical device selected from the group consisting of lithium-ion batteries with a capacity greater than 1 mAh, capacitors, supercapacitors, resistors, inductors, transistors, photovoltaic cells, and fuel cells, implementing a method for manufacturing an assembly consisting of a porous electrode and a porous separator, wherein the electrode comprises a porous layer deposited on a substrate, the porosity being between 20% and 60% (by volume) and the average diameter of the pores being less than 50 nm.

The present invention relates to a porous electrode for use in electrical energy storage or production devices, such as a lithium ion battery. Said porous electrode is a porous layer comprising at least an active electrode material P and an electronic conductive oxide material.

The invention provides devices for active modification of NIR radiation, the devices comprising: (i) a substrate; (ii) one or more polymeric permeable membranes comprising an ionic liquid electrolyte; (iii) one or more electrodes comprising carbon nanotubes and a transition metal oxide; and (iv) a protective encapsulation layer. The invention also provides methods of making such devices.

A battery (100) suitable for powering a wireless tag (119) includes a first sub-cell and a second sub-cell (114, 115) formed as a layer stack, each sub-cell having a negative electrode (107b, 107c) and a positive electrode (108b, 108c), a separator (117b, 117c) arranged between the positive and negative electrodes, and a plurality of separate electrical conductors (101, 102, 103), including a first conductor (101) in electrical contact with one of the electrodes (107b) of the first sub-cell (114); The device includes a second conductor (102) that electrically connects the electrode (108b) of the first unit cell (114) that is not in contact with the first conductor (101) to the electrode (107c) of the second unit cell (115) having the opposite polarity to form a series connection, a third conductor (103) that is in electrical contact with the electrode (108c) of the second unit cell (115) that is not in contact with the second conductor (102), and a first substrate (109a, 109b) between which the unit cells (114, 115) and the conductors (101, 102, 103) are arranged. The first conductor and the third conductor (101, 103) are arranged at a distance from each other on the first substrate (109a), while the second conductor (102) is arranged on the second substrate (109b). The electrically connected electrodes (108b, 107a) of the first and second sub-cells (114, 115) are arranged side by side in the form of layers on the second substrate (109b), each covering a partial area of ​​the second conductor (102) and separated from each other by a gap (110). The electrodes (107b, 108a) that are not connected to each other via the second conductor (102) are arranged in the form of layers on the first substrate (109a), such that the electrode (107b) in electrical contact with the first conductor (101) covers at least a portion of the first conductor (101) and the electrode (108c) in electrical contact with the third conductor (103) covers at least a portion of the third conductor (103). The separators (117b, 117c) of the single cells (114, 115), also in the form of layers, each have one surface contact with one of the electrically connected electrodes (108b, 107c) and their other surface contact with one of the non-electrically connected electrodes (107b, 108c).

A disclosed film electrode includes an electrode base, and an active material layer formed on the electrode base, and a resin layer adhering to at least one of a peripheral portion of the active material layer and a surface of the active material layer in a direction extending along a plane of the electrode base.

To provide a battery having lithiated or prelithiated components that are capable of rapid charging and have improved safety and efficiency, and further to provide a battery having a silicon anode that reduces volume expansion and irreversible capacity loss when lithium is alloyed with silicon.SOLUTION: A battery includes a cathode and an anode having a three-dimensional porous skeleton. The anode includes an anode active material lithiated with a lithium source. Lithium particles from the lithium source are alloyed or intercalated with the anode active material during diffusion to form a three-dimensional porous skeleton. The porous skeleton reduces electrode degradation due to volume expansion.SELECTED DRAWING: None

The present invention relates to a porous electrode usable in electrical energy storage or production devices, such as a lithium-ion battery. This porous electrode is a porous layer comprising at least one active electrode material P and an electronically conductive oxide material.

Embodiments of the present disclosure include a screen-printed anode with three or more layers, where each layer is printed with a different porosity to optimize the electrode for maximum capacity. Embodiments of the present disclosure include a screen-printed anode wherein the anode comprises graphite with a porosity of 100 μm and edge-to-edge differences of 200 to 400 μm. Embodiments of the present disclosure include a LI based cell comprising a screen-printed anode comprising graphite with at least one layer with a porosity of 100 μm and edge-to-edge differences of 200 to 400 μm; a screen printed cathode comprising a Li-based active material with a pore diameter of about 1000 μm.