公开(公告)号：US20180331393A1

公开(公告)日：2018-11-15

申请号：US15975016

申请日：2018-05-09

申请人： Korea Institute of Science and Technology

发明人： Won Il CHO ,  Mun Sek Kim ,  Ji Hyun Ryu ,  In Wook Nah ,  Min Seop Kim ,  Sun Min Park

IPC分类号： H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M4/38 ,  H01M4/525 ,  H01M10/0568

摘要： Disclosed is an electrolyte for a lithium metal secondary battery and a lithium metal secondary battery including the same. An electrolyte system is intended to maintain the energy density of a secondary battery based on a lithium metal negative electrode and to extend the life of a battery. Particularly, an electrolyte for a lithium metal battery which forms a stable SEI film capable of inhibiting formation and extension of lithium dendrite so that the negative electrode of a lithium metal battery having a high possibility of battery ignition may be stabilized and an internal short-circuit may be prevented, and a lithium metal secondary battery including the same is provided.

公开(公告)号：US10923725B2

公开(公告)日：2021-02-16

申请号：US16285680

申请日：2019-02-26

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Won Il Cho ,  Mun Sek Kim ,  Ji Hyun Ryu ,  Seung Hun Lee

IPC分类号： H01M4/04 ,  H01M4/62 ,  H01M10/052 ,  H01M4/36 ,  H01M4/1395 ,  H01M4/134 ,  H01M4/38 ,  H01M4/02 ,  B05D5/12 ,  B05D1/02 ,  B05D1/20 ,  B05D1/00 ,  B05D1/28

摘要： A method for producing an anode for a lithium metal secondary battery includes coating a thin film comprised of Nb2C, Ti2C or Ti3C2 on a substrate; providing a lithium metal electrode; and laminating the thin film to a surface of the lithium metal electrode. Coating is accomplished by providing a dispersion of a powder comprising Nb2C, Ti2C or Ti3C2; and coating the dispersion on the substrate by Langmuir-Blodgett scooping (LBS). The method may further include, prior to providing the dispersion, obtaining the powder by etching a MAX phase structure represented by Formula 1, Formula 2 or Formula 3 below: Nb2AC  (1); Ti2AC  (2); and Ti3AC2  (3), where A is a metal selected from among Group IIIA elements, Group IVA elements, Cd, and combinations thereof. The method may further include, after laminating the thin film, removing the substrate from the thin film.

公开(公告)号：US10804567B2

公开(公告)日：2020-10-13

申请号：US15975016

申请日：2018-05-09

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Won Il Cho ,  Mun Sek Kim ,  Ji Hyun Ryu ,  In Wook Nah ,  Min Seop Kim ,  Sun Min Park

IPC分类号： H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M4/38 ,  H01M10/0568 ,  H01M10/052 ,  H01M4/02 ,  H01M4/525 ,  H01M4/505 ,  H01M4/58

摘要： Disclosed is an electrolyte for a lithium metal secondary battery and a lithium metal secondary battery including the same. An electrolyte system is intended to maintain the energy density of a secondary battery based on a lithium metal negative electrode and to extend the life of a battery. Particularly, an electrolyte for a lithium metal battery which forms a stable SEI film capable of inhibiting formation and extension of lithium dendrite so that the negative electrode of a lithium metal battery having a high possibility of battery ignition may be stabilized and an internal short-circuit may be prevented, and a lithium metal secondary battery including the same is provided.