公开(公告)号：US20210249719A1

公开(公告)日：2021-08-12

申请号：US17251505

申请日：2019-06-17

Applicant: AMOGREENTECH CO., LTD.

Inventor： Ju Hee JANG ,  Hyeon Woo CHO

IPC: H01M50/136 ,  H01M50/102 ,  H01M10/0585

Abstract: A flexible battery is provided. A flexible battery according to an embodiment of the present invention comprises: an electrode assembly; an exterior material for sealing the electrode assembly together with an electrolyte; and a plurality of patterns having ridge portions and groove portions repeatedly formed along the lengthwise direction, wherein the maximum bending curvature at which the battery can be bent through the plurality of patterns is adjusted through the gap (L) between two neighboring patterns and the depth (d) of the patterns.

公开(公告)号：US20210043977A1

公开(公告)日：2021-02-11

申请号：US16965624

申请日：2019-03-07

Applicant: AMOGREENTECH CO., LTD.

Inventor： Ju Hee JANG ,  Hyeon Woo CHO

IPC: H01M10/0569 ,  H01M10/0567

Abstract: An electrolyte for a secondary battery is provided. The electrolyte for a secondary battery according to an embodiment of the present invention comprises: a non-aqueous organic solvent including propyl propionate (PP) and ethyl propionate (EP); a lithium salt; and an additive. The lithium salt is contained in a concentration of 0.6-1.6 M. Accordingly, when the electrolyte is applied to a battery and a flexible battery, excellent discharge performance can be exhibited in extremely low temperature and high temperature. In addition, the flexible battery of the present invention can prevent or minimize the deterioration of physical properties required as a battery even if repeated bending occurs. Such an electrolyte for a secondary battery of the present invention can be applied to various fields which require high discharge capacity at extremely low temperature and high temperature.

公开(公告)号：US20210036376A1

公开(公告)日：2021-02-04

申请号：US17043829

申请日：2019-06-11

Applicant: AMOGREENTECH CO., LTD.

Inventor： Hyeon Woo CHO ,  Ju Hee JANG

IPC: H01M10/0585 ,  H01M10/46 ,  H01M4/1393 ,  H01M4/133 ,  H01M4/04

Abstract: A flexible battery and method for manufacturing a flexible battery in which an electrode assembly is encapsulated by an exterior material with an electrolyte. The flexible battery may be provided with an electrode assembly manufactured by forming a positive electrode mixture by coating and drying a composition for forming a positive electrode active material on part or all of at least one surface of a positive electrode current collector; vacuum drying the positive electrode current collector to manufacture a positive electrode; forming a negative electrode mixture by coating and drying a composition for forming a negative electrode active material on part or all of at least one surface of a negative electrode current collector; vacuum drying the negative electrode current collector to manufacture a negative electrode; and laminating by interposing a separator between the positive electrode and the negative electrode.

公开(公告)号：US20210143519A1

公开(公告)日：2021-05-13

申请号：US17044072

申请日：2019-06-11

Applicant: AMOGREENTECH CO., LTD.

Inventor： Hyeon Woo CHO ,  Ju Hee JANG

IPC: H01M50/618 ,  H01M10/058 ,  H01M10/0525

Abstract: A manufacturing method for a flexible battery including injecting an electrolyte into an opening of an exterior material accommodating an electrode assembly contained therein and impregnating the electrode assembly with the electrolyte through a pressure difference inside the exterior material; and a sealing step of sealing the opening. Because the electrode assembly provided in the battery can be completely impregnated with an electrolyte, no spot occurs on the surface of a negative electrode filled with the electrolyte. In addition, the flexible battery can prevent or minimize deterioration of physical characteristics that the battery is required to exhibit, even if repeated bending occurs.

公开(公告)号：US20170329368A1

公开(公告)日：2017-11-16

申请号：US15521549

申请日：2015-10-23

Applicant: AMOGREENTECH CO., LTD.

Inventor： Seung Yun RHO ,  Won Gil CHOI ,  Hyeon Woo CHO ,  Ju Hee JANG

IPC: G06F1/16 ,  H04M1/02 ,  G09F9/30 ,  H01L51/00

CPC classification number: G06F1/1652 ,  G06F1/1632 ,  G06F1/1635 ,  G06F2203/04102 ,  G09F9/301 ,  H01L51/0097 ,  H04M1/0254 ,  H04M1/0262 ,  H04M1/0268

Abstract: A rollable display device is provided. An exemplary embodiment of the present invention provides a rollable display device including: a display body including a display unit configured to display various types of information as an image on one surface thereof and provided to be rollable; and a flexible battery provided on the display body and configured to supply power to the display body.

公开(公告)号：US20200168943A1

公开(公告)日：2020-05-28

申请号：US16778063

申请日：2020-01-31

Applicant: AMOGREENTECH CO., LTD.

Inventor： Seung Yun RHO ,  Won Gil CHOI ,  Hyeon Woo CHO ,  Ju Hee JANG

IPC: H01M10/0525 ,  H01M10/052 ,  H01M10/04 ,  H01M2/02

Abstract: A flexible battery is disclosed. The flexible battery can include: an electrode assembly; and an exterior material in which the electrode assembly is encapsulated together with an electrolyte, in which the electrode assembly and the exterior material are formed such that patterns for contraction and extension in a longitudinal direction have the same directionality when the flexible battery is bent. As such, the patterns for contraction and extension in the longitudinal direction are formed on both of the exterior material and the electrode assembly, thereby preventing or minimizing deterioration in the physical properties even though the flexible battery is bent.

公开(公告)号：US20170263972A1

公开(公告)日：2017-09-14

申请号：US15508685

申请日：2015-09-04

Applicant: AMOGREENTECH CO., LTD.

Inventor： Seung Yun RHO ,  Won Gil CHOI ,  Hyeon Woo CHO ,  Ju Hee JANG ,  Hyeong Tak NOH ,  Jong Gwan KIM

IPC: H01M10/04 ,  H01M2/16 ,  H01M10/0565 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/583 ,  H01M4/62 ,  H01M2/02 ,  H01M4/133

CPC classification number: H01M10/045 ,  H01M2/02 ,  H01M2/021 ,  H01M2/026 ,  H01M2/0275 ,  H01M2/0287 ,  H01M2/16 ,  H01M2/162 ,  H01M2/1686 ,  H01M4/0404 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/583 ,  H01M4/623 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/3972 ,  H01M2002/0205 ,  H01M2004/025 ,  H01M2220/30 ,  H01M2300/0025 ,  H01M2300/0085 ,  H04B1/385

Abstract: A flexible battery is disclosed, which comprises an electrode assembly, and an exterior material for sealing the electrode assembly along with an electrolyte. Both the electrode assembly and the exterior material are formed such that patterns for contraction and extension with respect to the longitudinal direction have the same directionality in the event of being bent.

公开(公告)号：US20210043882A1

公开(公告)日：2021-02-11

申请号：US16965631

申请日：2019-03-07

Applicant: AMOGREENTECH CO., LTD.

Inventor： Ju Hee JANG ,  Hyeon Woo CHO

IPC: H01M2/02 ,  H01M2/30 ,  H01M4/66 ,  H01M4/62 ,  H01M10/058

Abstract: A flexible battery including an electrode assembly having a positive electrode which has a positive electrode current collector having a positive electrode active material coated on a part or all of at least one surface, a negative electrode which has a foil-type negative electrode current collector having a negative electrode active material coated on a part or all of at least one surface, and a separator membrane disposed between the positive electrode and the negative electrode; an electrolyte solution; and an exterior material for sealing the electrode assembly with the electrolyte solution. Cracks are prevented from forming even when bending occurs by means of a predetermined pattern, and degradation of physical properties required for a battery can be prevented or minimized even when bending repeatedly occurs. The flexible battery can be applied to a wearable device as well as various electronic devices requiring flexibility such as a rollable display.

公开(公告)号：US20180366774A1

公开(公告)日：2018-12-20

申请号：US16108951

申请日：2018-08-22

Applicant: AMOGREENTECH CO., LTD.

Inventor： Seung Yun RHO ,  Won Gil CHOI ,  Hyeon Woo CHO ,  Ju Hee JANG

IPC: H01M10/0525 ,  H01M2/02 ,  H01M10/04 ,  H01M10/052

CPC classification number: H01M10/0525 ,  H01M2/02 ,  H01M10/04 ,  H01M10/052

Abstract: Provided is a flexible battery. A flexible battery according to an exemplary embodiment of the present invention includes: an electrode assembly; and an exterior material in which the electrode assembly is encapsulated together with an electrolyte, in which the electrode assembly and the exterior material are formed such that patterns for contraction and extension in a longitudinal direction have the same directionality when the flexible battery is bent. As such, the patterns for contraction and extension in the longitudinal direction are formed on both of the exterior material and the electrode assembly, thereby preventing or minimizing deterioration in the required physical properties even though the flexible battery is bent.

公开(公告)号：US20170338449A1

公开(公告)日：2017-11-23

申请号：US15527234

申请日：2015-11-17

Applicant: AMOGREENTECH CO., LTD.

Inventor： Seung Yun RHO ,  Won Gil CHOI ,  Hyeon Woo CHO ,  Ju Hee JANG ,  Hyeong Tak NOH

IPC: H01M2/02 ,  H01M10/04 ,  H01M10/058

CPC classification number: H01M2/0275 ,  H01G11/78 ,  H01M2/0207 ,  H01M2/162 ,  H01M2/1686 ,  H01M10/04 ,  H01M10/0436 ,  H01M10/058 ,  H01M10/0585 ,  H01M2220/30

Abstract: A flexible battery is provided. A flexible battery according to an exemplary embodiment of the present invention comprises: an electrode assembly; and an exterior material for encapsulating the electrode assembly together with an electrolyte, wherein the exterior material includes a first pattern part and a second pattern part for contraction and relaxation at the time of bending, which are formed on at least one surface of the exterior material, and the first pattern part and the second pattern part have different patterns.