-
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.
-
2.发明公开
公开(公告)号：EP4148834A1
公开(公告)日：2023-03-15
申请号：EP21898476.3
申请日：2021-11-17
发明人： LEE, Choonghyeon , JUNG, Unho
IPC分类号： H01M4/62 , H01M4/13 , H01M10/052 , H01M4/02
摘要： A binder composition for manufacturing a positive electrode of a lithium-sulfur battery comprising a binder, a thickener, and gum arabic is provided, a positive electrode manufactured using the binder composition is provided, and a lithium-sulfur battery comprising the positive electrode is provided. The binder composition may improve initial discharge performance and cycle performance of a battery by comprising gum arabic with a thickener, when applied to a lithium-sulfur battery.
-
公开(公告)号：EP4421910A1
公开(公告)日：2024-08-28
申请号：EP23868422.9
申请日：2023-08-29
发明人： KIM, Jeonggil , KWON, Hyejin , KIM, Sohee , KIM, Taegon , KIM, Myeongsoo , KIM, Ki Tae , LEE, Choonghyeon
摘要： An electrode for an all-solid-state battery is provided. The electrode comprises granules including a core containing an active material, a first conductive material and a binder, and a coating layer containing a solid electrolyte and a second conductive material disposed in contact with an outside of the core. According to one embodiment of the present invention, the first and second conductive materials have different sizes or shapes. The first conductive material has an aspect ratio of 4000 to 6000 and a BET specific surface area of 100 m2/g to 300 m2/g. The second conductive material has an aspect ratio of 100 to 300 and a BET specific surface area of 10 m2/g to 30 m2/g. The granules form an excellent electrical network in the interior of the granules even under the all-solid-state conditions, which contributes to the improvement of the battery performance when applied as an electrode for an all-solid-state battery.
-
4.发明公开
公开(公告)号：EP4329003A1
公开(公告)日：2024-02-28
申请号：EP22911707.2
申请日：2022-12-08
发明人： KWON, Hyejin , KIM, Sohee , KIM, Jeonggil , KIM, Taegon , KIM, Ki Tae , LEE, Choonghyeon , KIM, Myeongsoo
IPC分类号： H01M4/139 , H01M4/04 , H01M4/62 , H01M10/0562 , H01M10/052
摘要： Provided is a method for manufacturing an electrode for an all-solid-state battery comprising steps of applying granules containing an active material on a current collector, aligning and fixing the granules applied on the current collector, applying a solid electrolyte solution on fixed granules, and moving the solid electrolyte solution applied on the granules into pores between the granules. According to one embodiment of the present invention, the step of moving the solid electrolyte solution described above is performed by reducing the pressure by vacuum at 20°C to 40°C. According to the above manufacturing method, the solid electrolyte solution can be effectively and uniformly injected into the pores in the granule layer.
-
5.发明公开
公开(公告)号：EP4293738A1
公开(公告)日：2023-12-20
申请号：EP22920830.1
申请日：2022-12-22
发明人： KIM, Jeonggil , KWON, Hyejin , KIM, Sohee , KIM, Taegon , KIM, Myeongsoo , KIM, Ki Tae , LEE, Choonghyeon
摘要： Provided is a method for manufacturing an electrode for an all-solid-state battery comprising the steps of preparing primary granules comprising an active material, an electrically conductive material, and a binder, mixing the prepared primary granules with a solid electrolyte to prepare secondary granules coated with the solid electrolyte by a mechanofusion method, and applying the prepared secondary granules on a current collector to prepare an electrode. According to one embodiment of the present invention, the primary granules have an average particle diameter (D 50 ) of 50 µ m to 110 µ m, and the secondary granules have an average particle diameter (D 50 ) of 10 µ m to 30 µ m. The electrode manufactured according to the above manufacturing method contributes to improving the performance of the battery when applied to an all-solid-state battery by improving the electrical network between the active material and the solid electrolyte.
-
6.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.
-
7.发明公开
公开(公告)号：EP4203111A2
公开(公告)日：2023-06-28
申请号：EP22838024.2
申请日：2022-07-07
发明人： LEE, Choonghyeon , KIM, Taek Gyoung , CHOI, Ran
摘要： The present invention relates to a cathode slurry composition for a lithium secondary battery, a cathode comprising same, and a lithium secondary battery and, more particularly, when manufacturing a cathode for a lithium secondary battery including a slurry coating process, a cathode slurry composition having a thixotropy that can secure enough flowability to flexibly respond to a change in slurry coating speed is used to manufacture the cathode, and thus, when manufacturing the cathode for a lithium secondary battery, processability can be increased.
-
8.发明公开
公开(公告)号：EP4203110A2
公开(公告)日：2023-06-28
申请号：EP22838020.0
申请日：2022-07-07
发明人： LEE, Choonghyeon , KIM, Taek Gyoung , CHOI, Ran
摘要： The present invention relates to a cathode slurry composition for a lithium secondary battery, a cathode comprising same, and a lithium secondary battery. More specifically, when a cathode for a lithium secondary battery is manufactured by comprising a slurry coating process, the cathode is manufactured using a thixotropic cathode slurry composition capable of ensuring the flowability to flexibly respond to a change in slurry coating rate, so that the processability can be increased in the manufacture of the cathode for a lithium secondary battery.
-
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.
-
10.发明公开
公开(公告)号：EP4287325A1
公开(公告)日：2023-12-06
申请号：EP23743454.3
申请日：2023-01-18
发明人： JUNG, Unho , LEE, Choonghyeon
摘要： A binder composition for manufacturing a positive electrode of a lithium secondary battery comprising a binder, a thickener and an Arabic gum-cysteine polymer is provided, a positive electrode manufactured using the binder composition is provided, and a lithium secondary battery comprising the positive electrode is provided. The binder composition comprises an Arabic gum-cysteine polymer, and thus when applied to a lithium secondary battery, can improve the initial discharging performance and lifetime characteristics of the battery.
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.016 秒)
