公开(公告)号：US20210033474A1

公开(公告)日：2021-02-04

申请号：US16652515

申请日：2019-03-15

申请人： LG CHEM, LTD.

发明人： Jong Keon YOON ,  Hoejin HAH ,  Jeongbeom LEE

IPC分类号： G01L1/16 ,  H01M10/48 ,  G01R31/396

摘要： A secondary battery static pressure jig and a secondary cell internal pressure control method using the same is provided. The secondary battery static pressure jig, includes: a supporting member disposed on both surfaces of a battery cell to support the battery cell; a piezoelectric element that is disposed on at least one of surfaces of the supporting member and the battery cell contacting each other and measures a pressure applied to the battery cell; and a controlling part that controls a volume of the piezoelectric element according to the pressure measured by the piezoelectric element, wherein a volume of the piezoelectric element may be changed according to the volume change of the battery cell, and the pressure applied to the battery cell from the supporting member by the volume change of the piezoelectric element may be made to be a constant pressure.

公开(公告)号：US20210028421A1

公开(公告)日：2021-01-28

申请号：US16968094

申请日：2019-12-19

申请人： LG CHEM, LTD.

发明人： Hyunwoong YUN ,  Hoejin HAH ,  Jong Keon YOON

IPC分类号： H01M2/10 ,  H01M10/0525 ,  H01M2/26 ,  H01M10/04

摘要： The present invention discloses a pressing jig for pressing a battery cell, and a battery module including a module case in which a plurality of battery cells are included while installed in the pressing jig, wherein the pressing jig includes a presser including a plurality of pressing plates provided on outermost portions of a plurality of battery cells and among them and separating a space for receiving a plurality of battery cells, and performing pressing on a plurality of battery cells, and pressing frames connecting the pressing plates on upper portions and lower portions of the pressing plates, wherein all the pressing plates or the pressing plates excluding one pressing plate provided on an outermost portion on one side may move in a horizontal direction as the pressing direction, while connected to the pressing frames.

公开(公告)号：US20210273292A1

公开(公告)日：2021-09-02

申请号：US17258324

申请日：2020-05-11

申请人： LG CHEM, LTD.

发明人： Hyunwoong YUN ,  Youngdeok KIM ,  Hoejin HAH

IPC分类号： H01M50/417 ,  H01M10/0569 ,  H01M10/0525 ,  H01M10/0568 ,  H01M4/505 ,  H01M4/525

摘要： A lithium secondary battery exhibiting excellent life characteristic and stability is discussed, in which side reactions of an electrolyte are minimized, and non-uniform growth of lithium dendrite is effectively inhibited.

公开(公告)号：US20190341603A1

公开(公告)日：2019-11-07

申请号：US16400340

申请日：2019-05-01

申请人： LG CHEM, LTD.

发明人： Jong Keon YOON ,  Kyung Hwa WOO ,  Hoejin HAH

IPC分类号： H01M4/139 ,  H01M4/66 ,  H01M10/0525 ,  H01M4/62

摘要： A negative electrode for a lithium metal battery, a method of manufacturing the same, and a lithium metal battery including the same are provided.Specifically, one embodiment of the present invention provides a negative electrode for a lithium metal battery, the negative electrode including: a negative electrode current collector; a primer layer including an epoxy resin and a Ag conductive filler, the primer layer disposed on one surface or both surfaces of the negative electrode current collector; and a lithium metal (Li-metal) thin film disposed on the primer layer.

公开(公告)号：US20210234234A1

公开(公告)日：2021-07-29

申请号：US17263543

申请日：2020-05-22

申请人： LG CHEM, LTD.

发明人： Hyunwoong YUN ,  Hoejin HAH ,  Jong Keon YOON

IPC分类号： H01M50/446 ,  H01M50/403 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/66

摘要： The present disclosure relates to a separator for lithium secondary battery, a method for manufacturing same, and a lithium secondary battery including the same.
Specifically, in one embodiment of the present disclosure, by filling the pores of the separator, the present invention physically inhibits the metal column capable of growing on the surface of the negative electrode from moving toward the positive electrode, inhibits a micro-short circuit of the lithium secondary battery, and ultimately improves the lifetime of the lithium secondary battery.
In addition, by controlling the type of filling the pores of the separator and the type of the polymer filling it, the output characteristics of the lithium secondary battery are secured and improved.

公开(公告)号：US20210226246A1

公开(公告)日：2021-07-22

申请号：US16967651

申请日：2019-12-19

申请人： LG CHEM, LTD.

发明人： Hyunwoong YUN ,  Hoejin HAH ,  Jong Keon YOON

IPC分类号： H01M10/058 ,  H01M50/24 ,  H01M50/547 ,  H01M10/0525 ,  H01M50/211

摘要： The present invention discloses a pressing jig for pressing a battery cell, and a battery module including a module case in which a plurality of battery cells are included while installed in the pressing jig, wherein the pressing jig includes a presser including a plurality of pressing plates provided on outermost portions of a plurality of battery cells and among them and separating a space for receiving a plurality of battery cells, and performing pressing on a plurality of battery cells, and pressing frames connecting the pressing plates on upper portions and lower portions of the pressing plates, wherein all the pressing plates or the pressing plates excluding one pressing plate provided on an outermost portion on one side may move in a horizontal direction as the pressing direction, while connected to the pressing frames.

公开(公告)号：US20210013512A1

公开(公告)日：2021-01-14

申请号：US16978133

申请日：2020-01-31

申请人： LG CHEM, LTD.

发明人： Hyunwoong YUN ,  Hoejin HAH ,  Jong Keon YOON

IPC分类号： H01M4/62 ,  H01M4/66 ,  H01M4/36 ,  H01M4/139 ,  H01M2/16 ,  H01M10/0525 ,  H01M10/0585

摘要： An electrode assembly for a lithium secondary battery including an electrode, an insulation film, a separator and a counter electrode, wherein the insulation film is formed on an entire surface of one or both sides of the electrode, and the insulation film is an organic-inorganic mixed film including inorganic particles and a binder polymer. Also discussed is a manufacturing method thereof, and a lithium secondary battery including the same.

公开(公告)号：US20210344006A1

公开(公告)日：2021-11-04

申请号：US17271659

申请日：2019-07-16

申请人： LG CHEM, LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Jong Keon YOON ,  Yunjung KIM ,  Hyunwoong YUN ,  Sunwoo HWANG ,  Hoejin HAH ,  Hee-Tak KIM ,  Youngil ROH

IPC分类号： H01M4/38 ,  H01M4/04 ,  H01M4/36 ,  H01M4/66 ,  H01M10/0525 ,  H01M50/449 ,  H01M4/58

摘要： A lithium metal negative electrode and a lithium metal battery including the lithium metal negative electrode. The lithium metal negative electrode includes a protective layer present on at least one surface of the negative electrode for stabilizing between the lithium metal and the electrolyte. The protective layer includes a polymer of alpha lipoic acid (ALA) and sulfur molecule (S8), a depolymerized product of the polymer, an inorganic sulfide-based compound, and at least one of an inorganic nitride-based compound, or an inorganic nitrate-based compound.

公开(公告)号：US20210098791A1

公开(公告)日：2021-04-01

申请号：US16971191

申请日：2019-07-02

申请人： LG CHEM, LTD.

发明人： Jong Keon YOON ,  Hoejin HAH ,  Hyunwoong YUN ,  Hyunjun CHOI

IPC分类号： H01M4/62 ,  H01M4/38 ,  H01M4/66 ,  H01M4/134 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052

摘要： A negative electrode for a lithium metal battery, a manufacturing method thereof, and a lithium metal battery including the same. The negative electrode for the lithium metal battery includes a negative electrode current collector, and a passivation layer disposed on the negative electrode current collector. The passivation layer includes a halogen-based flame retardant, a ceramic, and an organic binder. In the passivation layer, a volume ratio of the ceramic and the organic binder is limited to a specific range.

公开(公告)号：US20190386315A1

公开(公告)日：2019-12-19

申请号：US16487567

申请日：2018-08-14

申请人： LG CHEM, LTD.

发明人： Kyung Hwa WOO ,  Jeong Woo SHON ,  Jong Keon YOON ,  Hoejin HAH

IPC分类号： H01M4/62 ,  H01M4/36 ,  H01M4/04 ,  H01M10/052 ,  H01M4/134

摘要： A lithium electrode including: a lithium metal layer; an aluminum oxide layer on the lithium metal layer; and a carbon layer on the aluminum oxide layer, and a lithium secondary battery including the same. The aluminum oxide layer can prevent a direct reaction between a non-aqueous electrolyte and a lithium metal layer, and particularly, since the aluminum oxide layer does not have electrical conductivity, lithium deposition occurs between the lithium metal layer and aluminum oxide layer. Thus lithium metal is not deposited on the protection layer. In addition, the carbon layer functions for producing a stable solid electrolyte interface film thereon.