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1.发明公开
公开(公告)号：EP4432402A1
公开(公告)日：2024-09-18
申请号：EP23865749.8
申请日：2023-08-21
发明人： KIM, Taegon , KIM, Myeongsoo , JEON, Seong Jang , KANG, Da Hyun , PARK, Sung Il , KIM, Bubsung , LEE, Choonghyeon , SONG, Min Sang
摘要： A binder for a lithium secondary battery comprising composite particles with a polytetrafluoroethylene structure coated with an acrylic polymer is provided. The binder for a lithium secondary battery according to one embodiment of the present invention not only can solve problems such as agglomeration that can occur when handling conventional binders, but also has excellent physical properties such as low thickness deviation and high tensile strength when manufacturing electrodes. In addition, a battery with these electrodes has improved performances of the battery, such as capacity retention rate.
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2.发明公开
公开(公告)号：EP4439688A1
公开(公告)日：2024-10-02
申请号：EP23747364.0
申请日：2023-01-27
发明人： KWON, Hyejin , KIM, Sohee , KIM, Jeonggil , KIM, Taegon , KIM, Ki Tae , LEE, Choonghyeon , KIM, Myeongsoo
IPC分类号： H01M4/04 , H01M10/0562 , H01M4/02
CPC分类号： Y02E60/10 , H01M4/02 , H01M4/04 , H01M10/0562
摘要： The present disclosure relates to a method of manufacturing an electrode for an all-solid-state battery comprising the steps of preparing granules containing an electrode active material, an electrically conductive material and a binder; mixing the granules with solid electrolyte powder; and forming an electrode active material layer by placing a mixture of the granules and the solid electrolyte powder on a current collector and pressurizing the mixture, and an electrode for an all-solid-state battery manufactured thereby.
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3.发明公开
公开(公告)号：EP4243113A1
公开(公告)日：2023-09-13
申请号：EP22849779.8
申请日：2022-07-18
发明人： KIM, Myeongsoo , KIM, Ki Tae , KIM, Jeonggil , KIM, Taegon
IPC分类号： H01M4/13 , H01M4/139 , H01M4/04 , H01M4/62 , H01M10/052
摘要： The present invention provides an electrode for a secondary battery, comprising a dry electrode film comprising an active material having an average particle diameter of 0.05 µ m to 3 µ m, an electrically conductive material, and a fibrillated binder; and a current collector on which the electrode film is stacked, a method for manufacturing the electrode, and a secondary battery comprising the electrode.
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4.发明公开
公开(公告)号：EP4207348A1
公开(公告)日：2023-07-05
申请号：EP21883171.7
申请日：2021-10-19
发明人： KIM, Myeongsoo , KIM, Jeonggil , KIM, Taegon
摘要： An electrode for secondary battery according to an embodiment of the present disclosure includes an electrode current collector; and an electrode layer located on the electrode current collector, wherein the electrode layer comprises an electrode composition in which an active material, a conductive material, a first binder and a second binder are dry-mixed, and wherein a molecular weight of the first binder is larger than a molecular weight of the second binder.
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公开(公告)号：EP4037010A1
公开(公告)日：2022-08-03
申请号：EP21848594.4
申请日：2021-07-19
发明人： KIM, Myeongsoo , KIM, Jeonggil , KIM, Taegon
IPC分类号： H01M4/13 , H01M4/36 , H01M4/62 , H01M4/505 , H01M4/139 , H01M4/131 , H01M4/1391 , H01M10/052
摘要： An electrode for secondary battery according to one embodiment of the present disclosure includes an electrode current collector, and an active material layer which includes an electrode composition and is formed on the electrode current collector, wherein the electrode composition includes an active material whose surface is dry-coated with a conductive material, and a binder which is dry-mixed with the active material.
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公开(公告)号：EP4447160A1
公开(公告)日：2024-10-16
申请号：EP23898291.2
申请日：2023-11-29
发明人： KIM, Myeongsoo , KIM, Taegon , OH, Kyungbae
IPC分类号： H01M4/36 , H01M4/131 , H01M10/052 , H01M4/525 , H01M4/02
摘要： The present invention relates to a positive electrode active material for an all-solid-state battery comprising a core capable of reversible adsorption and release of lithium ions and a coating layer formed on a surface of the core, wherein the coating layer comprises lithium carbon oxide represented by the Formula 1 below and lithium titanium oxide represented by Formula 2 below, a positive electrode for an all-solid-state battery comprising the positive electrode active material for an all-solid-state battery and a sulfide-based solid electrolyte, and an all-solid-state battery comprising a positive electrode, a negative electrode, and a solid electrolyte layer disposed between the positive electrode and the negative electrode, wherein the positive electrode comprises the positive electrode for an all-solid-state battery:
[Formula 1] Li a CO b ,
wherein a is 0
[Formula 2] Li x Ti y O 4 ,
wherein x is 0.8≤x≤1.4 and y is 1.6≤y≤2.2.-
7.发明公开
公开(公告)号：EP4439715A1
公开(公告)日：2024-10-02
申请号：EP23771131.2
申请日：2023-03-17
发明人： KIM, Sohee , KWON, Hyejin , KIM, Jeonggil , KIM, Ki Tae , KIM, Taegon , KIM, Myeongsoo
IPC分类号： H01M4/36 , H01M4/62 , H01M4/13 , H01M4/139 , H01M10/0562
CPC分类号： H01M4/13 , H01M4/36 , H01M4/139 , H01M4/62 , H01M10/0562
摘要： The present invention provides a method for preparing granules for an electrode for an all-solid-state battery comprising steps of (1) coating an electrically conductive material on an active material; and (2) spraying a binder on the coated active material to produce granules. Further, The present invention provides an all-solid-state battery using granules prepared thereby.
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公开(公告)号：EP4407707A1
公开(公告)日：2024-07-31
申请号：EP23816337.2
申请日：2023-05-30
发明人： KIM, Sohee , KWON, Hyejin , KIM, Jeonggil , KIM, Taegon , HAH, Hoejin , KIM, Ki Tae , LEE, Choonghyeon , KIM, Myeongsoo
IPC分类号： H01M4/131 , H01M4/04 , H01M4/1391 , H01M4/36 , H01M4/525 , H01M4/505 , H01M4/62 , H01M10/0562 , H01M4/02
CPC分类号： H01M4/02 , H01M4/04 , H01M4/36 , H01M4/505 , H01M4/525 , H01M4/62 , H01M4/1391 , H01M10/0562 , H01M4/131
摘要： Disclosed are a cathode for an all-solid-state battery in which a granule layer is composed of multiple layers having different types of particles to provide a uniform surface flatness during sheeting of the granule powder while increasing electrical conductivity of granule powder, resulting in excellent adhesion to the solid electrolyte, a method of preparing the same, and an all-solid-state battery including the cathode. The cathode for an all-solid-state battery includes: a metal current collector; an inner granule powder layer that is located on one surface of the metal current collector and includes an active material, a conductive material, and a binder in a form of granule powder; and an outer granule powder layer that is stacked on a surface of the inner granule powder layer and includes the active material, the conductive material, and the binder in the form of the granule powder, in which the conductive material included in the inner granule powder layer and the conductive material included in the outer granule powder layer have different shapes from each other.
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9.发明公开
公开(公告)号：EP4243118A1
公开(公告)日：2023-09-13
申请号：EP22858635.0
申请日：2022-08-01
发明人： KIM, Myeongsoo , KIM, Ki Tae , KIM, Taegon
IPC分类号： H01M4/36 , H01M4/62 , H01M4/525 , H01M4/505 , H01M10/0562 , H01M10/052 , H01M4/02
摘要： The present invention provides a composite for a positive electrode active material, comprising: a positive electrode active material; and a coating layer formed on the pores and the surface of the positive electrode active material, wherein the coating layer is formed of a coating composition containing a powder of the electrically conductive material and a powder of a solid electrolyte having a particle diameter (D50) of 0.3 µ m to 2 µ m, and an electrode for a secondary battery comprising the same, and a secondary battery comprising the electrode.
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公开(公告)号：EP4401163A1
公开(公告)日：2024-07-17
申请号：EP23874081.5
申请日：2023-08-25
发明人： KIM, Myeongsoo , KIM, Taegon
IPC分类号： H01M4/131 , H01M4/36 , H01M4/525 , H01M4/505 , H01M10/0562 , H01M10/052 , H01M4/02
CPC分类号： Y02E60/10 , H01M4/02 , H01M10/052 , H01M4/36 , H01M4/505 , H01M4/525 , H01M10/0562 , H01M4/131
摘要： The present invention relates to a positive electrode for an all-solid-state battery, comprising a positive electrode active material, a sulfide-based solid electrolyte, a conductive material and a binder, wherein the sulfide-based solid electrolyte comprises a first sulfide-based solid electrolyte containing a bromine (Br) element and a second sulfide-based solid electrolyte not containing a bromine (Br) element, wherein the positive electrode active material comprises a core capable of reversible adsorption and release of lithium ions; and a coating layer formed on the surface of the core, where the coating layer comprises the first sulfide-based solid electrolyte, and an all-solid-state battery comprising the positive electrode.
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