公开(公告)号：US20230126985A1

公开(公告)日：2023-04-27

申请号：US17968070

申请日：2022-10-18

申请人： SAMSUNG SDI CO., LTD.

发明人： Minsuk LEE ,  Suyeol RYU ,  Isaac SHIN ,  Jihyoung PARK ,  Young Gyoon RYU ,  Jaegu YOON

IPC分类号： H01M10/0585 ,  H01M4/66 ,  H01M50/211 ,  H01M50/209 ,  H01M50/289 ,  H01M50/264

摘要： A fully solid battery includes a positive electrode plate, a solid electrolyte layer disposed on one side of the positive electrode plate, a negative electrode plate disposed on one side of the solid electrolyte layer, and a buffer film disposed on one side of the negative electrode plate. The buffer film includes a base substrate and a buffer layer on at least one surface of the base substrate. The buffer layer includes a first particulate that provides resilience, a second particulate that relieves stress, and a binder.

公开(公告)号：US20190260031A1

公开(公告)日：2019-08-22

申请号：US16166778

申请日：2018-10-22

申请人： Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

发明人： Youngsoo KIM ,  Byongyong YU ,  San MOON ,  Younggyoon RYU ,  Jinhwan PARK ,  Jaegu YOON ,  Byungjin CHOI

IPC分类号： H01M4/62 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525

摘要： A includes a cathode active material including a lithium transition metal oxide, wherein the lithium transition metal oxide includes nickel and a non-nickel transition metal, and an amount of the nickel in the lithium transition metal oxide is about 50 mole percent or greater with respect to a total number of moles of transition metals in the lithium transition metal oxide, a conducting agent including a linear carbonaceous conducting agent, and a binder, wherein the binder includes a first fluorinated binder not including a polar functional group, a second fluorinated binder including a polar functional group, a first non-fluorinated binder including a cyano group, and a second non-fluorinated binder including a cyanoalkyl group.

公开(公告)号：US20230128073A1

公开(公告)日：2023-04-27

申请号：US17972695

申请日：2022-10-25

申请人： SAMSUNG SDI CO., LTD.

发明人： Minsuk LEE ,  Suyeol RYU ,  Hongjeong KIM ,  Younggyoon RYU ,  Jaegu YOON

IPC分类号： H01M10/42 ,  H01M10/0585

摘要： An all-solid secondary battery includes a cathode layer, an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer. The cathode layer includes a cathode active material layer and a flame-retardant inactive member located on and in contact with the solid electrolyte layer and has a rectangular enclosure shape surrounding side surfaces of the cathode active material layer, wherein the flame-retardant inactive member includes a pair of first side portions and a pair of second side portions connected to the first side portions, the first side portions having uncoated portion corresponding portions corresponding to a cathode uncoated portion of a cathode current collector and an anode uncoated portion of an anode current collector, respectively, and wherein a width of the uncoated portion corresponding portion of the first side portion is greater than a width of the remaining portion of the first side portion.

公开(公告)号：US20220115690A1

公开(公告)日：2022-04-14

申请号：US17450037

申请日：2021-10-05

申请人： Samsung SDI Co., Ltd.

发明人： Bokkyu CHOI ,  Young Gyoon RYU ,  Jaegu YOON ,  Eungyeong LEE ,  Joowook LEE

IPC分类号： H01M10/0562 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/131 ,  H01M4/139 ,  H01M4/62

摘要： An all solid battery includes a cell stack including a negative electrode, a solid electrolyte layer, and a positive electrode, a case to accommodate the cell stack, and a buffer material to pressure the cell stack in the case.

公开(公告)号：US20200075930A1

公开(公告)日：2020-03-05

申请号：US16534206

申请日：2019-08-07

申请人： Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

发明人： Youngsoo KIM ,  Younggyoon RYU ,  Jaegu YOON ,  Seungyeon LEE

IPC分类号： H01M4/131 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M4/62

摘要： A cathode includes: a cathode active material comprising a lithium transition metal oxide; a conductive material; and a binder, wherein the lithium transition metal oxide includes nickel and a transition metal other than nickel, wherein the lithium transition metal oxide has a layered crystal structure, wherein a content of the nickel is 30 mole percent or greater, based on a total number of moles of transition metals of the lithium transition metal oxide, wherein the conductive material comprises a linear carbon conductive material, wherein the binder includes a first binder, wherein the first binder including fluorine and a polar functional group, and a second binder, which does not include fluorine, and wherein an amount of the linear carbon conductive material is 0.1 weight percent or greater, based on a total combined weight of the cathode active material, the conductive material, and the binder.