公开(公告)号：US20220085432A1

公开(公告)日：2022-03-17

申请号：US17474684

申请日：2021-09-14

申请人： SK INNOVATION CO., LTD.

发明人： Sang Han LEE ,  Yong Hyun CHO ,  Min Gu KANG ,  Min Suk KANG ,  Yoon Ji LEE

IPC分类号： H01M10/52 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0525

摘要： A lithium secondary battery according to an embodiment of the present invention includes an electrode assembly including a separation layer, and a plurality of cathodes and a plurality of anodes separated by the separation layer and repeatedly stacked, and a gas adsorption layer coated on a single surface of an outermost anode among the plurality of anodes.

公开(公告)号：US20240072298A1

公开(公告)日：2024-02-29

申请号：US18479926

申请日：2023-10-03

申请人： SK INNOVATION CO., LTD.

发明人： Young Hoon DO ,  Yoon Ji LEE ,  Yong Hyun CHO ,  In Haeng CHO

IPC分类号： H01M10/0525 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M50/46

CPC分类号： H01M10/0525 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M50/46 ,  H01M2004/027

摘要： Provided is a lithium secondary battery, and the lithium secondary battery of the present invention includes: a positive electrode including a first lithium-metal oxide including secondary particles formed by aggregating primary particles having a particle diameter of 2 μm or less and a second lithium-metal oxide including nickel and at least one or more metals selected from the group consisting of manganese (Mn) and cobalt (Co) and including particles having a primary particle diameter of 2 μm or more; a negative electrode; a separator interposed between the positive electrode and the negative electrode; and an electrolyte, wherein the electrolyte includes a lithium salt, a nonaqueous organic solvent, and a difluorophosphite compound containing at least one or more difluorophosphite groups.

公开(公告)号：US20210066743A1

公开(公告)日：2021-03-04

申请号：US17003635

申请日：2020-08-26

申请人： SK INNOVATION CO., LTD.

发明人： Young Hoon DO ,  Yoon Ji LEE ,  Yong Hyun CHO ,  In Haeng CHO

IPC分类号： H01M10/0525 ,  H01M4/525 ,  H01M2/16 ,  H01M4/505 ,  H01M10/0569 ,  H01M10/0567

摘要： Provided is a lithium secondary battery, and the lithium secondary battery of the present invention includes: a positive electrode including a first lithium-metal oxide including secondary particles formed by aggregating primary particles having a particle diameter of 2 μm or less and a second lithium-metal oxide including nickel and at least one or more metals selected from the group consisting of manganese (Mn) and cobalt (Co) and including particles having a primary particle diameter of 2 μm or more; a negative electrode; a separator interposed between the positive electrode and the negative electrode; and an electrolyte, wherein the electrolyte includes a lithium salt, a nonaqueous organic solvent, and a difluorophosphite compound containing at least one or more difluorophosphite groups.