公开(公告)号：US10468650B2

公开(公告)日：2019-11-05

申请号：US15522904

申请日：2015-10-19

Applicant: LG CHEM, LTD.

Inventor： Chang Hun Park ,  Min Chul Jang ,  Doo Kyung Yang ,  Byong Kuk Son ,  Jung Hun Choi ,  Taek Gyoung Kim ,  Myeong Hun Song

IPC: H01M2/16 ,  H01M4/133 ,  H01M4/62 ,  H01M10/42 ,  H01M10/0567 ,  H01M10/0566 ,  H01M10/0565 ,  H01M10/052 ,  H01M4/38

Abstract: The present disclosure relates to a lithium sulfur battery, and the battery includes a cathode and an anode arranged facing each other; a separator interposed between the cathode and the anode; and an electrolyte, and further includes at least one or more membranes of a lithium ion conductive polymer membrane positioned between the cathode and the separator and having a sulfonic acid group (—SO3H), and a metal oxide membrane positioned between the anode and the separator, and therefore, an electrode active material loss is reduced, an improved lifespan characteristic is obtained by blocking the spread of lithium polysulfide to the anode, and in addition thereto, enhanced safety is obtained by suppressing a dendrite growth in the anode.

公开(公告)号：US10147942B2

公开(公告)日：2018-12-04

申请号：US15507641

申请日：2015-10-21

Applicant: LG CHEM, LTD.

Inventor： Byoung Kuk Son ,  Min Chul Jang ,  Eun Kyung Park ,  Doo Kyung Yang ,  Jung Hun Choi

IPC: H01M4/13 ,  H01M4/38 ,  H01M4/134 ,  H01M4/1395 ,  C01D15/00 ,  C23C14/00 ,  H01M4/40 ,  H01M10/02 ,  H01M4/04 ,  H01M4/36 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0562

Abstract: The present invention relates to a multi-layer structured lithium metal electrode and a method for manufacturing the same and, specifically, to a multi-layer structured lithium metal electrode comprising: a buffer layer of lithium nitride (Li3N) formed on a lithium metal plate; and a protective layer of LiBON formed on the buffer layer, and to a method for manufacturing a multi-layer structured lithium metal electrode by continuously forming a lithium nitride buffer layer and a LiBON protective layer on a lithium metal plate through continuous reactive sputtering multi-layer structured lithium metal electrode multi-layer structured lithium metal electrode lithium metal plate multi-layer structured lithium metal electrode lithium metal plate. The multi-layer structured lithium metal electrode of the present invention can protect the reactivity of the lithium metal from moisture or an environment within a battery, and prevent the formation of dendrites, by forming the protective layer.