公开(公告)号：US20190067702A1

公开(公告)日：2019-02-28

申请号：US16080455

申请日：2017-01-06

申请人： LG CHEM, LTD.

发明人： Byoung Kuk SON ,  Min Chul JANG ,  Jung Hun CHOI ,  Eun Kyung PARK ,  Chang Hun PARK

IPC分类号： H01M4/62 ,  H01M10/052 ,  H01M4/525 ,  H01M10/0585

摘要： The present invention relates to a lithium secondary battery, and in particular, to a lithium secondary battery having lithium, a negative electrode active material, formed on a positive electrode side.In the lithium secondary battery according to the present invention, coating is performed while being blocked from the atmosphere through a process of forming a lithium thin film on a negative electrode current collector, and therefore, formation of a surface oxide layer of lithium metal caused by oxygen and moisture in the atmosphere can be suppressed, which resultantly leads to an effect of enhancing a cycle life property.

公开(公告)号：US20170331150A1

公开(公告)日：2017-11-16

申请号：US15522904

申请日：2015-10-19

申请人： LG CHEM, LTD.

发明人： Chang Hun PARK ,  Min Chul JANG ,  Doo Kyung YANG ,  Byong Kuk SON ,  Jung Hun CHOI ,  Taek Gyoung KIM ,  Myeong Hun SONG

IPC分类号： H01M10/0563 ,  H01M10/052 ,  H01M10/0565 ,  C08K3/30 ,  C08J5/22 ,  C01D15/06

CPC分类号： H01M2/16 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/1666 ,  H01M2/1686 ,  H01M4/133 ,  H01M4/38 ,  H01M4/382 ,  H01M4/62 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0565 ,  H01M10/0566 ,  H01M10/0567 ,  H01M10/42 ,  H01M10/4235

摘要： 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：US20170309899A1

公开(公告)日：2017-10-26

申请号：US15507641

申请日：2015-10-21

申请人： LG CHEM, LTD.

发明人： Byoung Kuk SON ,  Min Chul JANG ,  Eun Kyung PARK ,  Doo Kyung YANG ,  Jung Hun CHOI

IPC分类号： H01M4/38 ,  H01M4/40 ,  C23C14/00 ,  H01M10/02 ,  C01D15/00

CPC分类号： H01M4/382 ,  C01D15/00 ,  C23C14/0036 ,  H01M4/0428 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/405 ,  H01M4/628 ,  H01M10/02 ,  H01M10/052 ,  H01M10/0562 ,  H01M2300/0068

摘要： 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.