公开(公告)号：US20220006116A1

公开(公告)日：2022-01-06

申请号：US17209579

申请日：2021-03-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wonsung Choi ,  Gabin Yoon ,  Tomoyuki TSUJIMURA ,  Toshinori SUGIMOTO

IPC: H01M10/0562 ,  H01M10/0525

Abstract: A solid ion conductor compound including Li, Ho, and a halogen element, wherein the compound has diffraction peaks at 30°2θ to 33°2θ, 33°2θ to 36°2θ, 40°2θ to 44°2θ, and 48°2θ to 52°28θ, when analyzed using CuKα radiation, and wherein a full width at half maximum of at least one peak at 40°2θ to 44°2θ is 0.3°2θ or greater.

公开(公告)号：US20200381773A1

公开(公告)日：2020-12-03

申请号：US16886897

申请日：2020-05-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tomoyuki TSUJIMURA ,  Yuichi AIHARA ,  Nobuya MACHIDA

IPC: H01M10/0562 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/04

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.

公开(公告)号：US20180212233A1

公开(公告)日：2018-07-26

申请号：US15871245

申请日：2018-01-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seitaro ITO ,  Tomoyuki SHIRATSUCHI ,  Yuichi AIHARA ,  Tomoyuki TSUJIMURA

IPC: H01M4/36 ,  H01M10/0562 ,  H01M4/131 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/362 ,  H01M4/131 ,  H01M4/366 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/028 ,  H01M2300/0068

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.

公开(公告)号：US20230024868A1

公开(公告)日：2023-01-26

申请号：US17856016

申请日：2022-07-01

Applicant: Samsung Electronics Co., Ltd. ,  TOHOKU UNIVERSITY

Inventor： Itaru HOMMA ,  Tomoyuki TSUJIMURA ,  Nobuyoshi YASHIRO ,  Guohao YUAN

IPC: H01M4/36 ,  H01M4/505 ,  H01M4/58 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/04

Abstract: A coated cathode active material, a method of preparing the same, and a cathode and a non-aqueous electrolyte secondary battery, each including the same, the coated cathode active material including: a cathode active material particle and a coating layer on a surface of the cathode active material particle, the coating layer including LiAlF4, LiF, and Li3AlF6.