公开(公告)号：US20220410203A1

公开(公告)日：2022-12-29

申请号：US17781644

申请日：2020-11-25

Applicant: MTEK-SMART CORPORATION

Inventor： Masafumi MATSUNAGA

IPC: B05D1/10 ,  B05D3/04 ,  B05B7/20 ,  H01M4/64 ,  H01M4/62

Abstract: [Problem] Upon application or film formation of a particulate matter to/on an object, the particulate matter moving with a speed is heated in a time duration from a suction port for particulate matter to the object, thereby softening or melting at least some of the particulate matter when the particulate matter is applied to the object.
[Solution] A particulate matter is heated by means of induction heating or laser in a time duration from a suction port for particulate matter to an object, so that at least some of the particulate matter is softened or melted at a relatively low temperature on the object in synergy with the collision energy of the particulate matter with the object, thereby enabling the application or film formation of the particulate matter.

公开(公告)号：US20230063889A1

公开(公告)日：2023-03-02

申请号：US17794733

申请日：2021-01-20

Applicant: MTEK-SMART CORPORATION

Inventor： Masafumi MATSUNAGA

IPC: H01M4/04 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0565

Abstract: A method for manufacturing secondary batteries, forming a positive electrode for lithium-ion batteries, it was necessary to select polyvinylidene fluoride (PVDF) or the like as a binder due to the problems of heat resistance or chemical resistance when using a liquid electrolyte such as an organic solvent. Solvents which can dissolve such a resin are limited to normal methylpyrrolidone (NMP) and the like, have a high boiling point, and require a long, high-temperature oven.
By mixing a slurry with a low boiling point solvent, and applying the resultant mixture to a heated object, a parent solvent evaporates due to the azeotropic effect of the low boiling point solvent, and spraying, especially pulsed spraying can evaporate at least 90% of the parent solvent on the object within 5 seconds even when the temperature of the object is 100° C. lower, preferably at least 50° C. lower than that of the parent solvent. Therefore, a drying device has a very small total length, thus by lamination in the form of a thin film, the positive electrode can be easily made into a thick film thickness.

公开(公告)号：US20230264225A1

公开(公告)日：2023-08-24

申请号：US18001508

申请日：2021-06-03

Applicant: MTEK-SMART CORPORATION

Inventor： Masafumi MATSUNAGA

IPC: B05C11/10 ,  B05C5/00 ,  B05D3/00

CPC classification number: B05C11/1034 ,  B05C5/00 ,  B05D3/00

Abstract: A preliminary container upstream of a slurry container, a tube or pipe of a compressed air discharge line from the slurry container is inserted into the preliminary container, so that, even if a slurry flows back, the slurry is retained in the preliminary container and the slurry is prevented from flowing back upstream of the preliminary container. In addition, minute droplets are prevented from flowing back upstream, by using a protector, or an air-permeable screen.

公开(公告)号：US20210242444A1

公开(公告)日：2021-08-05

申请号：US17269716

申请日：2019-08-13

Applicant: MTEK-SMART CORPORATION

Inventor： Masafumi MATSUNAGA

IPC: H01M4/04 ,  H01M10/052

Abstract: To lower electrical resistance by increasing the interfacial surface area and the adhesion between a current collector and an active material or an electrolyte, or between the active material and the electrolyte in an all-solid-state battery. In addition, to improve battery performance by eliminating or minimizing residual carbon originating from a binder. A slurry, composed of an electrode active material and a solvent, and a slurry, composed of electrolyte particles and a solvent, can be impacted against a target and thereby attached thereto to form a high-density layer and improve adhesion. Moreover, residual carbon is eliminated or minimized by eliminating or minimizing the content of binders, thereby improving battery performance.

公开(公告)号：US20220131124A1

公开(公告)日：2022-04-28

申请号：US17429150

申请日：2020-01-29

Applicant: MTEK-SMART CORPORATION

Inventor： Masafumi MATSUNAGA

IPC: H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M10/0562

Abstract: Electrodes are formed by, as a dry method, alternately applying electrode active material and electrolyte particles as thin-film layers. Furthermore, the films are formed wholly or partially by employing an aerosol deposition method. Moreover, high-density layers can be formed and adhesion is improved by, as a wet method, impactfully and alternately colliding, with a target object, slurry made primarily from an electrode active material and solvent and a slurry made primarily from electrolyte particles and a solvent, adhering same in thin films and layering same. A slurry made primarily from a conductivity aid and a solvent is independently prepared, and a small quantity thereof is applied diffusely at a desired position. Moreover, by using no binder or keeping binder content low, residual carbon can be eliminated or kept low so as to improve battery performance.

公开(公告)号：US20210384484A2

公开(公告)日：2021-12-09

申请号：US17269716

申请日：2019-08-13

Applicant: MTEK-SMART CORPORATION

Inventor： Masafumi MATSUNAGA

IPC: H01M4/04 ,  H01M10/052

Abstract: [Problem] To lower electrical resistance by increasing the interfacial surface area and the adhesion between a current collector and an active material or an electrolyte, or between the active material and the electrolyte in an all-solid-state battery. In addition, to improve battery performance by eliminating or minimizing residual carbon originating from a binder. [Solution] According to the present invention, a slurry, composed of an electrode active material and a solvent, and a slurry, composed of electrolyte particles and a solvent, can be impacted against a target and thereby attached thereto to form a high-density layer and improve adhesion. Moreover, residual carbon is eliminated or minimized by eliminating or minimizing the content of binders, thereby improving battery performance.

公开(公告)号：US20170136492A1

公开(公告)日：2017-05-18

申请号：US15319870

申请日：2014-12-02

Applicant: Mtek-smart Corporation

Inventor： Masafumi MATSUNAGA

IPC: B05D1/12 ,  B05D3/06

CPC classification number: B05D1/12 ,  B05D3/06 ,  C23C24/04 ,  H01L33/505 ,  H01L2933/0041 ,  H05B33/10

Abstract: [Object] To apply or deposit powder or granular material onto a required portion of an object by a required quantity precisely at low cost, to make the weight per unit area smaller than one square centimeter or square millimeter uniform, and to make the use efficiency of powder or granular material as close to 100% as possible.[Solution] Firstly layers of powder or granular material is formed on a substrate with a uniform weight per unit area, and then the powder or granular material on the substrate is sucked and ejected toward the object to form layers or films.

公开(公告)号：US20220344629A1

公开(公告)日：2022-10-27

申请号：US17635520

申请日：2020-08-04

Applicant: MTEK-SMART CORPORATION

Inventor： Masafumi MATSUNAGA

IPC: H01M4/04 ,  H01M4/88

Abstract: A small diameter roll is provided on the upstream side of a heating and sucking roll, an electrode slurry is applied by using a slot nozzle on the small diameter roll or an OFF roll, and an electrode is formed by instantaneously evaporating a solvent by the heating and sucking roll.

公开(公告)号：US20220069287A1

公开(公告)日：2022-03-03

申请号：US17415316

申请日：2019-12-27

Applicant: MTEK-SMART CORPORATION

Inventor： Masafumi MATSUNAGA

IPC: H01M4/139 ,  H01M4/36 ,  H01M4/04 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/052 ,  B05D1/02 ,  B05D1/36 ,  B05D7/24 ,  B05D7/00

Abstract: A high-density layer can be formed and adherence increased by causing a slurry formed primarily from an electrode active material and a solvent and a slurry formed primarily from electrolyte particles and the solvent to alternately collide with a subject material with an impact force and to adhere and be layered thereon in thin film. A slurry formed primarily from a conductive additive and the solvent is separately created and is coated in a dispersed manner in a small quantity at a desired position. Carbon residue is eliminated or greatly reduced and battery performance improved by eliminating a binder or greatly reducing the binder content.

公开(公告)号：US20180182937A1

公开(公告)日：2018-06-28

申请号：US15854517

申请日：2017-12-26

Applicant: NICHIA CORPORATION ,  Mtek-smart Corporation

Inventor： Takayuki IGARASHI ,  Masafumi MATSUNAGA

IPC: H01L33/56 ,  H01L33/60 ,  H01L33/50

CPC classification number: H01L21/02282 ,  H01L21/02 ,  H01L21/02104 ,  H01L33/505 ,  H01L33/507 ,  H01L33/52 ,  H01L33/54 ,  H01L33/56 ,  H01L33/60 ,  H01L2933/0041 ,  H01L2933/005 ,  H01L2933/0058 ,  H01L2933/0091

Abstract: The method includes the steps of: storing slurry containing optical matter particles into a slurry tank; stirring the slurry inside the slurry tank by causing a bubble producing unit arranged below a liquid surface of the slurry to produce bubbles; and spraying the slurry onto a coating target including a light emitting element from a nozzle arranged above the coating target.