Patents by Inventor Tomoyuki Tsujimura

Tomoyuki Tsujimura 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).

  • Patent number: 10930927
    Abstract: A positive electrode active material includes a core and a coating disposed on at least a portion of a surface of the core. The core includes a lithium metal oxide, a lithium metal phosphate, or a combination thereof. The coating includes a compound according to the formula LimM1nXp, wherein M1, X, m, n and p are as defined herein. Also, an electrochemical cell including the positive electrode active material, and methods for the manufacture of the positive electrode active material and the electrochemical cell.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: February 23, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Lincoln Miara, Yan Wang, Tomoyuki Tsujimura, Yuichi Aihara, William Richards, Gerbrand Ceder
  • Publication number: 20200381773
    Abstract: A method of preparing a solid electrolyte and an all-solid battery including a solid electrolyte prepared by the method, the method including: contacting a first solvent and a first starting material comprising an alkali metal, sulfur, phosphorus, an element M, or a combination thereof to form a first solution; precipitating a first precursor from the first solution; contacting a second solvent, the first precursor, and a second starting material comprising an alkali metal, sulfur, phosphorus, an element M, or a combination thereof to form a second solution; precipitating a second precursor from the second solution; and heat treating the second precursor to prepare the solid electrolyte, wherein the element M comprises an element of Group 14 of the Periodic Table of the Elements, and the element M and the alkali metal in the first starting material and the second starting material are the same or different.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 3, 2020
    Inventors: Tomoyuki TSUJIMURA, Yuichi AIHARA, Nobuya MACHIDA
  • Patent number: 10811726
    Abstract: A solid electrolyte for an all-solid secondary battery, wherein the solid electrolyte has a composition represented by Formula (1): Li7-xPS6-xBrx??(1) wherein 1.2<x<1.75, the solid electrolyte has an argyrodite crystal structure, and the solid electrolyte has at least one peak at a position of a 29.65±0.50° 2? when analyzed by X-ray diffraction using CuK? radiation.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yuichi Aihara, Tomoyuki Tsujimura
  • Publication number: 20200161699
    Abstract: An all-solid secondary battery includes: a cathode layer including a cathode active material; an anode layer; and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein at least one of the cathode layer, the anode layer, or the solid electrolyte layer includes a phase-transition solid electrolyte material, wherein upon heating, the phase-transition solid electrolyte material undergoes a phase transition from a first phase to a second phase, and the second phase has an ionic conductivity less than the ionic conductivity of the first phase.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 21, 2020
    Inventors: Seitaro ITO, Tomoyuki TSUJIMURA, Yuichi AIHARA
  • Publication number: 20190348707
    Abstract: A method of preparing a sulfide solid electrolyte, the method including: first contacting a starting materials including Li2S, P2S5, and LiI in a first solvent to provide a precursor; and second contacting the precursor with a second solvent to prepare the sulfide solid electrolyte, wherein the first solvent includes a C1-C3 alkyl group or a cyclic ether compound which is unsubstituted or substituted with a C1-C3 alkoxy group, and the second solvent includes a C1-C10 hydrocarbon substituted with a C1 to C6 alkoxy group.
    Type: Application
    Filed: April 25, 2019
    Publication date: November 14, 2019
    Inventors: Seitaro ITO, Tomoyuki TSUJIMURA, Yuichi AIHARA, Nobuya MACHIDA
  • Patent number: 10446872
    Abstract: A solid electrolyte material represented by Formula 1: L1+2x(M1)1?x(M2)(M3)4??Formula 1 wherein 0.25<x<1, L is at least one element selected from a Group 1 element, M1 is at least one element selected from a Group 2 element, a Group 3 element, a Group 12 element, and a Group 13 element, M2 is at least one element selected from a Group 5 element, a Group 14 element, and a Group 15 element, and M3 is at least one element selected from a Group 16 element, and wherein the solid electrolyte material has an I-4 crystal structure.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 15, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Gerbrand Ceder, Jaechul Kim, Lincoln Miara, William Richards, Tomoyuki Tsujimura, Yan Wang, Naoki Suzuki
  • Publication number: 20190265261
    Abstract: The present invention is provided with: an automatic analysis device 200 for performing an analysis process to analyze a specimen that is to be analyzed; a specimen pre-processing module 100 for performing pre-processing to cause the specimen to enter a state in which the analysis process can be performed; a main conveyance line 161 for conveying a specimen container carrier 10 which accommodates the specimen that is to be analyzed and in which at least one specimen container can be mounted; and annular conveyance lines 111, 121, 131, 141, 151, 411 that are disposed adjacent to the main conveyance line 161 and that are moreover disposed so as to be capable of transferring the specimen container carrier 10 to and from the main conveyance line 161, the annular conveyance lines 111, 121, 131, 141, 151, 411 being capable of circulating and conveying the specimen container carrier 10 separately without the use of another conveyance line (e.g., a return line 162).
    Type: Application
    Filed: July 18, 2017
    Publication date: August 29, 2019
    Applicant: Hitachi High-Technologies Corporation
    Inventors: Shigeki YAMAGUCHI, Naoto TSUJIMURA, Tomoyuki NEMOTO
  • Publication number: 20190148769
    Abstract: A solid electrolyte for an all-solid secondary battery, wherein the solid electrolyte has a composition represented by Formula (1): Li7-xPS6-xBrx??(1) wherein 1.2<x<1.75, the solid electrolyte has an argyrodite crystal structure, and the solid electrolyte has at least one peak at a position of a 29.65±0.50° 2? when analyzed by X-ray diffraction using CuK? radiation.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 16, 2019
    Inventors: Yuichi AIHARA, Tomoyuki TSUJIMURA
  • Publication number: 20190140265
    Abstract: A positive electrode active material includes a core and a coating disposed on at least a portion of a surface of the core. The core includes a lithium metal oxide, a lithium metal phosphate, or a combination thereof. The coating includes a compound according to the formula LimM1nXp, wherein M1, X, m, n and p are as defined herein. Also, an electrochemical cell including the positive electrode active material, and methods for the manufacture of the positive electrode active material and the electrochemical cell.
    Type: Application
    Filed: May 3, 2018
    Publication date: May 9, 2019
    Inventors: Lincoln Miara, Yan Wang, Tomoyuki Tsujimura, Yuichi Aihara, William Richards, Gerbrand Ceder
  • Publication number: 20180212233
    Abstract: A composite cathode active material including: a core particle; a first coating layer; and a second coating layer; wherein the core particle includes a cathode active material, the first and second coating layers cover a surface of the core particle, the first coating layer includes a first lithium-containing compound, wherein the first lithium-containing compound includes zirconium, niobium, titanium, aluminum, or a combination thereof, the second coating layer includes a second lithium-containing compound, wherein the second lithium-containing compound includes germanium, niobium, gallium, or a combination thereof, and the first lithium-containing compound is different from the second lithium-containing compound.
    Type: Application
    Filed: January 15, 2018
    Publication date: July 26, 2018
    Inventors: Seitaro ITO, Tomoyuki SHIRATSUCHI, Yuichi AIHARA, Tomoyuki TSUJIMURA
  • Patent number: 9966629
    Abstract: A sodium-conductive solid-state electrolyte material includes a compound of the composition Na10MP2S12, wherein M is selected from Ge, Si, and Sn. The material may have a conductivity of at least 1.0×10?5 S/cm at a temperature of about 300K and may have a tetragonal microstructure, e.g., a skewed P1 crystallographic structure. Also provided are an electrochemical cell that includes the sodium-conductive solid-state electrolyte material and a method for producing the sodium-conductive solid electrolyte material via controlled thermal processing parameters.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: May 8, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: William D. Richards, Shyue Ping Ong, Yifei Mo, Gerbrand Ceder, Lincoln Miara, Tomoyuki Tsujimura, Yan Wang, Young-Gyoon Ryu, Naoki Suzuki, Ichiro Uechi
  • Patent number: 9780406
    Abstract: A method of manufacturing a lithium ion conductive glass ceramic, includes a step of forming granules using a material including an SiO2 source, a ZrO2 source, a P2O5 source and an Na2O source; a step of obtaining a powder including a glass ceramic by passing the granules under a heated gas phase atmosphere to melt the granules and solidifying the melted granules; a step of obtaining a target object including a glass ceramic by performing a heat treatment on the powder to precipitate crystals; and a step of obtaining a lithium ion conductive glass ceramic by performing an ion-exchange process on the target object in molten salt including lithium ions.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: October 3, 2017
    Assignee: Asahi Glass Company, Limited
    Inventors: Tomoyuki Tsujimura, Nobuhiro Shinohara
  • Patent number: 9748601
    Abstract: A method of manufacturing a lithium ion conductive solid electrolyte includes (a) a step of preparing an object to be processed including a crystalline material, that includes alkali metal other than lithium and whose ionic conductivity at room temperature is greater than or equal to 1×10?13 S/cm; and (b) a step of performing an ion-exchange process on the object to be processed in molten salt including lithium ions.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: August 29, 2017
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Tomoyuki Tsujimura, Akio Koike, Syusaku Akiba
  • Publication number: 20170187066
    Abstract: A solid electrolyte for an all-solid secondary battery, the solid electrolyte including: Li, S, P, an M1 element, and an M2 element, wherein the M1 element is at least one element selected from Na, K, Rb, Sc, Fr, and the M2 element is at least one element selected from F, Cl, Br, I, molar amounts of lithium and the M1 element satisfy 0<M1/(Li+M1)?0.07, and the solid electrolyte has peaks at positions of 15.42°±0.50° 2?, 17.87° degrees±0.50° degrees 2?, 25.48° degrees±0.50° degrees 2?, 30.01° degrees±0.50° 2?, and 31.38°±0.50° 2? when analyzed by X-ray diffraction using CuK? radiation.
    Type: Application
    Filed: November 17, 2016
    Publication date: June 29, 2017
    Inventors: Tomoyuki TSUJIMURA, Naoki SUZUKI, Yuichi AIHARA
  • Patent number: 9670087
    Abstract: The present invention relates to an alkali-free glass having a strain point of 725° C. or higher, an average thermal expansion coefficient at from 50 to 300° C. of from 30×10?7 to 40×107/° C., a temperature T2 at which a glass viscosity is 102 dPa·s of 1,710° C. or lower, and a temperature T4 at which a glass viscosity is 104 dPa·s of 1,320° C. or lower, the alkali-free glass including, in terms of mol % on the basis of oxides, SiO2: 66 to 70, Al2O3: 12 to 15, B2O3: 0 to 1.5, MgO: more than 9.5 and 13 or less, CaO: 4 to 9, SrO: 0.5 to 4.5, BaO: 0 to 1, and ZrO2: 0 to 2, in which MgO+CaO+SrO+BaO is from 17 to 21, MgO/(MgO+CaO+SrO+BaO) is 0.4 or more, MgO/(MgO+CaO) is 0.4 or more, MgO/(MgO+SrO) is 0.6 or more, and the alkali-free glass does not substantially contain an alkali metal oxide.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: June 6, 2017
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Tomoyuki Tsujimura, Manabu Nishizawa, Akio Koike
  • Publication number: 20170040637
    Abstract: A solid electrolyte material represented by Formula 1: L1+2x(M1)1-x(M2)(M3)4??Formula 1 wherein 0.25<x<1, L is at least one element selected from a Group 1 element, M1 is at least one element selected from a Group 2 element, a Group 3 element, a Group 12 element, and a Group 13 element, M2 is at least one element selected from a Group 5 element, a Group 14 element, and a Group 15 element, and M3 is at least one element selected from a Group 16 element, and wherein the solid electrolyte material has an I-4 crystal structure.
    Type: Application
    Filed: August 2, 2016
    Publication date: February 9, 2017
    Inventors: Gerbrand CEDER, Jaechul Kim, Lincoln Miara, William Richards, Tomoyuki Tsujimura, Yan Wang, Naoki Suzuki
  • Patent number: 9540273
    Abstract: The present invention relates to a non-alkali glass having a strain point of from 710° C. to lower than 725° C., an average thermal expansion coefficient at from 50 to 300° C. of from 30×10?7 to 43×10?7/° C., a temperature T2 at which glass viscosity reaches 102 dPa·s of 1710° C. or lower, a temperature T4 at which the glass viscosity reaches 104 dPa·s of 1320° C. or lower, and containing, indicated by mol % on the basis of oxides, SiO2 66 to 70, Al2O3 12 to 14, B2O3 exceeding 0 to 1.5, MgO exceeding 9.5 to 13 (or 5 to 9.5), CaO 4 to 9 (or 4 to 11), SrO 0.5 to 4.5, BaO 0 to 0.5 and ZrO 0 to 2.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: January 10, 2017
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hirofumi Tokunaga, Tomoyuki Tsujimura, Manabu Nishizawa, Akio Koike
  • Publication number: 20160226095
    Abstract: A sodium-conductive solid-state electrolyte material includes a compound of the composition Na10MP2S12, wherein M is selected from Ge, Si, and Sn. The material may have a conductivity of at least 1.0×10?5 S/cm at a temperature of about 300K and may have a tetragonal microstructure, e.g., a skewed P1 crystallographic structure. Also provided are an electrochemical cell that includes the sodium-conductive solid-state electrolyte material and a method for producing the sodium-conductive solid electrolyte material via controlled thermal processing parameters.
    Type: Application
    Filed: April 28, 2015
    Publication date: August 4, 2016
    Inventors: William D. Richards, Shyue Ping Ong, Yifei Mo, Gerbrand Ceder, Lincoln Miara, Tomoyuki Tsujimura, Yan Wang, Young-Gyoon Ryu, Naoki Suzuki, Ichiro Uechi
  • Patent number: 9382152
    Abstract: The present invention relates to a non-alkali glass having a strain point of from 710° C. to lower than 725° C., an average thermal expansion coefficient at from 50 to 300° C. of from 30×10?7 to 43×10?7/° C., a temperature T2 at which glass viscosity reaches 102 dPa·s of 1710° C. or lower, a temperature T4 at which the glass viscosity reaches 104 dPd·s of 1320° C. or lower, and containing, indicated by mol % on the basis of oxides, SiO2 66 to 70, Al2O3 12 to 14, B2O3 exceeding 0 to 1.5, MgO exceeding 9.5 to 13 (or 5 to 9.5), CaO 4 to 9 (or 4 to 11), SrO 0.5 to 4.5, BaO 0 to 0.5 and ZrO 0 to 2.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: July 5, 2016
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hirofumi Tokunaga, Tomoyuki Tsujimura, Manabu Nishizawa, Akio Koike
  • Publication number: 20160068427
    Abstract: The present invention relates to a non-alkali glass having a strain point of from 710° C. to lower than 725° C., an average thermal expansion coefficient at from 50 to 300° C. of from 30×10?7 to 43×10?7/° C., a temperature T2 at which glass viscosity reaches 102 dPa·s of 1710° C. or lower, a temperature T4 at which the glass viscosity reaches 104 dPa·s of 1320° C. or lower, and containing, indicated by mol % on the basis of oxides, SiO2 66 to 70, Al2O3 12 to 14, B2O3 exceeding 0 to 1.5, MgO exceeding 9.5 to 13 (or 5 to 9.5), CaO 4 to 9 (or 4 to 11), SrO 0.5 to 4.5, BaO 0 to 0.5 and ZrO 0 to 2.
    Type: Application
    Filed: November 17, 2015
    Publication date: March 10, 2016
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hirofumi TOKUNAGA, Tomoyuki TSUJIMURA, Manabu NISHIZAWA, Akio KOIKE