公开(公告)号：US20180090786A1

公开(公告)日：2018-03-29

申请号：US15368474

申请日：2016-12-02

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Goojin JEONG ,  Youngjun KIM ,  Hansu KIM

IPC: H01M10/0563 ,  H01M4/38 ,  H01M4/587 ,  H01M10/42

CPC classification number: H01M10/0563 ,  H01M4/381 ,  H01M4/382 ,  H01M4/483 ,  H01M4/582 ,  H01M4/587 ,  H01M6/14 ,  H01M10/052 ,  H01M10/0561 ,  H01M10/0567 ,  H01M10/4235

Abstract: The present invention relates to an electrolyte solution containing an iodide additive, and a sulfur dioxide-based secondary battery including the same. An electrolyte solution for a sulfur dioxide-based secondary battery according to the present invention includes sulfur dioxide (SO2), an alkali metal salt, and an iodide additive. An iodide additive is added to an electrolyte solution, and thus energy efficiency, a long-life characteristic, and stability of a negative electrode of a sulfur dioxide-based secondary battery can be improved.

公开(公告)号：US20160079598A1

公开(公告)日：2016-03-17

申请号：US14738140

申请日：2015-06-12

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY

Inventor： Goojin JEONG ,  Hansu KIM ,  Youngjun KIM

IPC: H01M4/58 ,  H01M4/62 ,  H01M4/583 ,  H01M4/38 ,  H01M10/054 ,  H01M10/0563

CPC classification number: H01M4/582 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/58 ,  H01M4/5805 ,  H01M4/5815 ,  H01M4/583 ,  H01M4/62 ,  H01M4/625 ,  H01M10/052 ,  H01M10/054 ,  H01M10/0563 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/002

Abstract: The present invention relates to a positive electrode containing a metal chloride and an alkali metal chloride and an alkali metal-ion secondary battery including the same. The alkali metal-ion secondary battery according to the present invention includes a negative electrode, a positive electrode containing a metal chloride and an alkali metal chloride, and a sulfur dioxide-based inorganic electrolyte solution containing an inorganic electrolyte including sulfur dioxide (SO2) and an alkali metal salt. As the alkali metal-ion secondary battery according to the present invention uses a mixture of the metal chloride and the alkali metal chloride as a positive electrode material, and an alkali-ion electrolyte as a sulfur dioxide-based inorganic electrolyte, compared to the conventional sodium-ion secondary battery, the alkali metal-ion secondary battery can be used at room temperature and pre-charged, and have improved energy density and power density.

Abstract translation: 本发明涉及含有金属氯化物和碱金属氯化物的正极和包含该正极的碱金属离子二次电池。 根据本发明的碱金属离子二次电池包括负极，含有金属氯化物的正极和碱金属氯化物，以及含有包含二氧化硫（SO 2）和无机电解质的无机电解质的二氧化硫系无机电解液， 碱金属盐。 作为本发明的碱金属离子二次电池，与常规的碱金属离子二次电池相比，使用金属氯化物和碱金属氯化物的混合物作为正极材料，碱金属离子电解质作为二氧化硫系无机电解质 钠离子二次电池，碱金属离子二次电池可以在室温下使用并预充电，并具有提高的能量密度和功率密度。

公开(公告)号：US20200381772A1

公开(公告)日：2020-12-03

申请号：US16767725

申请日：2018-11-27

Applicant: Korea Electronics Technology Institute

Inventor： Kyungsu KIM ,  Woosuk CHO ,  Goojin JEONG ,  Jisang YU

IPC: H01M10/0562

Abstract: The present disclosure provides a solid electrolyte including an oxysulfide-based compound represented by LiaPbMcSdOeX (Formula 1) and having excellent stability against moisture, a method of manufacturing the solid electrolyte, and an all-solid-state battery showing superior manufacturing processability. In Formula 1, M is one selected from a group consisting of Zr, Nb, Hf, Ta, Ga, In, Ti, Pb, Bi, Ge, As, Sb, Si, B, Al, and a combination thereof. X is one selected from a group consisting of F, Cl, Br, and I. Also, 6

公开(公告)号：US20170187069A1

公开(公告)日：2017-06-29

申请号：US15316149

申请日：2015-08-25

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Taeeun YIM ,  Youngjun KIM ,  Youngkwon KIM ,  Minsik PARK ,  Goojin JEONG ,  Yongnam JO

IPC: H01M10/0568 ,  H01M10/0569 ,  H01M4/38 ,  H01M10/054 ,  H01M4/587

CPC classification number: H01M10/0568 ,  H01M4/381 ,  H01M4/587 ,  H01M10/05 ,  H01M10/054 ,  H01M10/0569 ,  H01M2300/0045

Abstract: The described technology relates to an electrolyte solution comprising a sulfur dioxide-based ionic liquid electrolyte, and a sodium-sulfur dioxide (Na—SO2) secondary battery having same, one purpose of the described technology being to enhance the storage characteristics of sulfur dioxide gas in an electrolyte solution. The sodium-sulfur dioxide secondary battery includes a negative electrode which is formed from an inorganic material and which contains sodium. The battery also includes a positive electrode which is formed from a carbon material and a sulfur dioxide-based inorganic electrolyte solution. Here, the electrolyte solution contains a sulfur dioxide-based ionic liquid electrolyte prepared by injecting SO2 gas in an ionic liquid.

公开(公告)号：US20230420732A1

公开(公告)日：2023-12-28

申请号：US18339119

申请日：2023-06-21

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Keonho PARK ,  Woosuk CHO ,  Jisang YU ,  Goojin JEONG ,  Kyungsu KIM

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/008

Abstract: A chloride-based solid electrolyte with improved lithium ion conductivity and electrochemical oxidation stability is proposed. The chloride-based solid electrolyte may be represented by Chemical Formula, Li2+aMCl6−bOc, in which some of chloride ions (Cl−) are substituted with oxygen ions (O2−), wherein M denotes metal which is at least one of Zr, Ti, Hf, Fe, or Co, and wherein −0.5

公开(公告)号：US20200328392A1

公开(公告)日：2020-10-15

申请号：US16835464

申请日：2020-03-31

Applicant: Korea Electronics Technology Institute

Inventor： Sanggil WOO ,  Jisang YU ,  Goojin JEONG ,  Jenam LEE

IPC: H01M2/16 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/134 ,  H01M4/62 ,  H01M4/36

Abstract: The present disclosure provides a separator, a lithium metal negative electrode, and a lithium metal secondary battery which include a solid superacid coating layer. The solid superacid coating layer suppresses a growth of lithium dendrites in a lithium metal secondary battery employing lithium metal as a negative electrode by improving a mobility and a reaction uniformity of lithium at an interface of the lithium metal negative electrode and an electrolyte solution. In the lithium metal secondary battery, the solid superacid coating layer comprising solid superacid material having a porous structure is formed on at least one of the lithium metal negative electrode and the separator.

公开(公告)号：US20180090743A1

公开(公告)日：2018-03-29

申请号：US15368476

申请日：2016-12-02

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Goojin JEONG ,  Youngjun KIM ,  Hansu KIM ,  Juhye SONG

IPC: H01M4/04 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/62 ,  H01M4/38

CPC classification number: H01M4/0483 ,  H01M4/134 ,  H01M4/366 ,  H01M4/382 ,  H01M4/628 ,  H01M10/0525

Abstract: The present invention relates to a negative electrode for a lithium secondary battery that can ensure a high energy density, a long-life characteristic, and stability by forming a film on a negative electrode for a lithium secondary battery and thus suppressing dendrites during electrodeposition, a method of manufacturing the same, and a lithium secondary battery using the same. The method of manufacturing the negative electrode for a lithium secondary battery according to the present invention includes preparing a sulfur dioxide-based sodium molten salt and forming a protective layer on the surface of a current collector by immersing the current collector in the sulfur dioxide-based sodium molten salt.