Patents by Inventor Ville Kekkonen

Ville Kekkonen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240136495
    Abstract: A method for manufacturing a component of an electrochemical energy storage device utilizes lithium such that a coating method based on pulsed laser ablation is utilized in the production of an ion-conducting inorganic material layer on at least one surface of a lithium metal anode. At least one material layer is processed by thermal, mechanical, or thermomechanical treatment or by combination of any of these treatments after pulsed laser deposition. A roll-to-roll method can be used in the deposition, in which the substrate to be coated is directed from one roll to the second roll, and the deposition takes place in the area between the rolls. Moving and/or turning mirrors can be used to direct laser pulses as a beam line array to the surface of the target material.
    Type: Application
    Filed: February 22, 2022
    Publication date: April 25, 2024
    Applicant: PULSEDEON OY
    Inventors: Ville KEKKONEN, Jari LIIMATAINEN
  • Publication number: 20230198007
    Abstract: A method is for the manufacture of materials used in electrochemical energy storage devices. The manufacturing utilizes processing of the material layers by pressure and/or temperature, a porous, non-conducting substrate web (1A, 1B, 1C). An organic solid electrolyte (2A, 2B, 2C) is attached to and impregnated into the substrate web. The manufacturing processes a lithium-metal anode (11), and a cathode layer containing cathode-material particles together with polymer solid electrolyte and/or inorganic solid electrolyte and/or liquid electrolyte as well as with other necessary constituents.
    Type: Application
    Filed: May 12, 2021
    Publication date: June 22, 2023
    Inventors: Jari LIIMATAINEN, Ville KEKKONEN
  • Publication number: 20230198009
    Abstract: A method is for producing electrochemical energy storage devices utilizing lithium and for producing materials used in the devices, such that the anode has lithium metal, inorganic solid electrolytes. Anode and cathode components are joined together by pressure and/or temperature utilized in the production. The lithium-metal layer is produced at least partly by a pulsed laser deposition method. The method can utilise various inorganic solid electrolytes produced by different methods and a roll-to-roll method as well as different ways to couple pressure and/or temperature to the component being processed.
    Type: Application
    Filed: April 15, 2021
    Publication date: June 22, 2023
    Applicant: Pulsedeon Oy
    Inventors: Jari LIIMATAINEN, Ville KEKKONEN
  • Publication number: 20230056927
    Abstract: A method is for manufacturing materials for electrochemical energy storage devices. A deposition method based on laser ablation is utilised in the manufacturing of at least one material layer including lithium. The process is controlled using measurement information that is obtained from the spectrum of the electromagnetic radiation generated by laser ablation. A roll-to-roll method can be used in the deposition, in which the substrate (15, 32, 44, 64, 75, 85) to be coated is directed from one roll (31a) to the second roll (31 b), and the deposition takes place in the area between the rolls (31a-b). In addition, turning and/or moving mirrors (21) can be used to direct laser beam (12, 41, 71a-d, 81a-d) as a beam line array (23) to the surface of the target (13, 42a-b, 72a-d, 82a-d, 82A-D).
    Type: Application
    Filed: February 23, 2021
    Publication date: February 23, 2023
    Applicant: Pulsedeon Oy
    Inventors: Jari LIIMATAINEN, Ville KEKKONEN
  • Patent number: 10927447
    Abstract: The present invention introduces a scanning arrangement and a method suitable for coating processes applying laser ablation. The arrangement is suited to prolonged, industrial processes. The arrangement comprises a target, which has an annular form. The laser beam direction is controlled by a rotating mirror locating along the center axis of the annular target. The scanning line will rotate circularly along the inner target surface when the mirror rotates. The focal point of the laser beams may be arranged to locate on the inner target surface to ensure a constant spot size. A ring-formed, a cylinder-shaped or a cut conical-shaped target may be used. The inner surface of the target may thus be tapered in order to control the release direction of the ablated material towards a substrate to be coated.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: February 23, 2021
    Assignee: Pulsedeon Oy
    Inventors: Ville Kekkonen, Jarkko Piirto, Jari Liimatainen, Fergus Clarke
  • Patent number: 10573868
    Abstract: The present invention describes a method for coating porous separator films of lithium batteries and a coated separator film produced as a result of the respective manufacturing method. Laser ablation is used in the method for detaching particles from the target, and the particle flux vaporised by laser pulses is directed to the base material to be coated, to which the material is attached. The so-called roll-to-roll principle can be used in the method, in which the base material to be coated is directed from one roll to a second roll, and the coating occurs in the area between these rolls. In addition, rotating mirrors and a telecentric lens can be used for aligning the laser pulses as a rectilinear pulse front before guiding onto the target material.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: February 25, 2020
    Assignee: Pulsedeon Oy
    Inventors: Jari Liimatainen, Ville Kekkonen, Aleksey Zolotukhin
  • Patent number: 10557193
    Abstract: The present invention presents a method for manufacturing tight and porous coatings from metallic, ceramic and organic materials by utilizing composite targets manufactured of two or several materials, which are disintegrated, and producing in this way material flow towards the object to be coated by utilizing short laser pulses directed to the target material. With the method it is possible to produce material structures in a controlled manner, minimizing the needed energy of the laser pulses and heat generation, and with the method it is also possible to improve productivity by correctly choosing the components for the target material.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: February 11, 2020
    Assignee: Pulsedeon Oy
    Inventors: Jari Liimatainen, Ville Kekkonen
  • Publication number: 20190316247
    Abstract: The present invention introduces a laser ablation arrangement and a corresponding method for PLD applications, where circular scanning patterns are utilized to achieve high scanning velocities on target surfaces for efficient coating process. The arrangement allows for flexible positioning of targets and scan lines in order to optimize coating uniformity on large surface areas as well as high duty cycle for scanning. These features are all essential for achieving efficient industrial coating processes. Fast optical switching and synchronized rotation of scanning mirrors enable efficient distribution of laser energy along long scan line paths on target surfaces.
    Type: Application
    Filed: October 20, 2017
    Publication date: October 17, 2019
    Applicant: Pulsedeon Oy
    Inventors: Ville KEKKONEN, Mikael SILTANEN
  • Publication number: 20180233729
    Abstract: The present invention describes a method for coating porous separator films of lithium batteries and a coated separator film produced as a result of the respective manufacturing method. Laser ablation is used in the method for detaching particles from the target, and the particle flux vaporised by laser pulses is directed to the base material to be coated, to which the material is attached. The so-called roll-to-roll principle can be used in the method, in which the base material to be coated is directed from one roll to a second roll, and the coating occurs in the area between these rolls. In addition, rotating mirrors and a telecentric lens can be used for aligning the laser pulses as a rectilinear pulse front before guiding onto the target material.
    Type: Application
    Filed: September 23, 2015
    Publication date: August 16, 2018
    Applicant: Picodeon Ltd Oy
    Inventors: Jari Liimatainen, Ville Kekkonen, Aleksey Zolotukhin
  • Publication number: 20170350000
    Abstract: The present invention introduces a scanning arrangement and a method suitable for coating processes applying laser ablation. The arrangement is suited to prolonged, industrial processes. The arrangement comprises a target, which has an annular form. The laser beam direction is controlled by a rotating mirror locating along the center axis of the annular target. The scanning line will rotate circularly along the inner target surface when the mirror rotates. The focal point of the laser beams may be arranged to locate on the inner target surface to ensure a constant spot size. A ring-formed, a cylinder-shaped or a cut conical-shaped target may be used. The inner surface of the target may thus be tapered in order to control the release direction of the ablated material towards a substrate to be coated.
    Type: Application
    Filed: December 16, 2015
    Publication date: December 7, 2017
    Applicant: Picodeon Ltd Oy
    Inventors: Ville Kekkonen, Jarkko Piirto, Jari Liimatainen, Fergus Clarke
  • Publication number: 20170342544
    Abstract: The present invention presents a method for manufacturing tight and porous coatings from metallic, ceramic and organic materials by utilizing composite targets manufactured of two or several materials, which are disintegrated, and producing in this way material flow towards the object to be coated by utilizing short laser pulses directed to the target material. With the method it is possible to produce material structures in a controlled manner, minimizing the needed energy of the laser pulses and heat generation, and with the method it is also possible to improve productivity by correctly choosing the components for the target material.
    Type: Application
    Filed: December 4, 2015
    Publication date: November 30, 2017
    Applicant: Picodeon Ltd Oy
    Inventors: Jari Liimatainen, Ville Kekkonen