公开(公告)号：US20210066719A1

公开(公告)日：2021-03-04

申请号：US16842597

申请日：2020-04-07

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Hee-Tak KIM ,  Sang Ouk KIM ,  Juhyuk LEE ,  Year in BYUN

IPC: H01M4/60 ,  H01M4/38 ,  H01M4/583 ,  H01M10/36 ,  H01M10/38 ,  H01M4/04

Abstract: Provided are a positive electrode for a Zn—Br battery, a Zn—Br battery including the same, and a method of manufacturing the positive electrode for a Zn—Br battery. The positive electrode for a Zn—Br battery includes a carbon body doped with pyridinic nitrogen. The Zn—Br battery includes a negative electrode including a transition metal coated with zinc, the positive electrode; and an electrolyte. A pH of the electrolyte is in a range of 1.5 to 5.

公开(公告)号：US20230061376A1

公开(公告)日：2023-03-02

申请号：US17827433

申请日：2022-05-27

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Sung Oh CHO ,  Juhyuk LEE ,  Sangyoon LEE

IPC: H01M50/446 ,  H01M50/403

Abstract: The present invention relates to a method for manufacturing a lithium secondary battery separator comprising the following steps: a step of surface-modifying inorganic particles using a coupling agent; a step of mixing the surface-modified inorganic particles with a polymer; and a step of irradiating an electron beam to the mixed inorganic particles and polymer. The method for manufacturing a lithium secondary battery separator provided in one aspect of the present invention has an effect that a lithium secondary battery separator having improved mechanical and thermal properties can be manufactured.

公开(公告)号：US20210288303A1

公开(公告)日：2021-09-16

申请号：US17133819

申请日：2020-12-24

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hee-Tak KIM ,  Juhyuk LEE

IPC: H01M4/04 ,  H01M10/054 ,  H01M4/583 ,  H01M4/133 ,  H01M4/1393

Abstract: Disclosed are an electrode for secondary batteries containing a high-density carbon defect structure and a method of producing the same. The electrode can prevent deterioration of battery performance due to dendrite formation by inhibiting self-diffusion and aggregation of metal nuclei, and can exhibit an unprecedentedly high number of charge/discharge cycles and excellent energy efficiency by uniformly electrodepositing metal ions on the surface of the electrode. When the method of producing a carbon electrode for a secondary battery is used, an electrode containing a high-density carbon defect structure can be produced, and thus a battery with higher efficiency and a longer lifespan can be produced. The secondary battery comprising the electrode is useful for fields related to medium/large-scale energy storage technology, in particular, for mobile devices, automobile batteries, and renewable-energy power generation systems.