公开(公告)号：US20170271684A1

公开(公告)日：2017-09-21

申请号：US14889144

申请日：2014-12-05

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Kyu-nam JUNG ,  Jong-won LEE ,  Kyung-hee SHIN ,  Chang-soo JIN ,  Bum-suk LEE ,  Myung-seok JEON ,  Jae-deok JEON ,  Sun-hwa YEON ,  Joon-mok SHIM ,  Jung-hoon YANG

IPC: H01M4/88 ,  H01M4/38 ,  H01M12/08

CPC classification number: H01M4/8817 ,  H01M4/382 ,  H01M4/8657 ,  H01M4/8875 ,  H01M4/8892 ,  H01M4/9016 ,  H01M12/08 ,  H01M2004/8689 ,  Y02E60/128

Abstract: The present invention relates to a cathode for a metal-air battery, a method for manufacturing the same, and a metal-air battery including the same. The cathode comprises a needle-shaped core including two or more species of metals selected from the group consisting of nickel, cobalt, manganese, zinc, iron, copper, and chrome, or a cobalt oxide; and a flake-shaped shell including an oxide containing two or more species of metals selected from the group consisting of nickel, cobalt, manganese, zinc, iron, copper, and chrome or a cobalt oxide. As such, the core-shell structure may lead to a reduction in the charge voltage of the metal-air battery as well as the taking of the good capacity characteristics of the transition metal oxide. Further, according to the present invention, the cathode for a metal-air battery may be produced without adding carbon or binder.

公开(公告)号：US20200328447A1

公开(公告)日：2020-10-15

申请号：US16382599

申请日：2019-04-12

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Shin-kun RYI ,  Myung-seok JEON ,  Jae Yun HAN ,  Chang-Hyun KIM

IPC: H01M8/18 ,  H01M8/04223 ,  H01M8/04119 ,  H01M8/065

Abstract: The present invention relates to a method for producing a 3- to 3.5-valent vanadium solution from a 4-valent vanadium solution by a catalytic reaction in the presence of a reducing agent, which generates a gas product during oxidation; a method for producing an electrolyte for a vanadium redox flow battery; and an apparatus for producing a liquid electrolyte for a vanadium redox flow battery. The present invention is characterized in that when a 3- to 3.5-valent vanadium electrolyte is produced from a 4-valent vanadium electrolyte by a catalytic reaction in the presence of a reducing agent, which generates a gas product during oxidation, the gas product produced in the catalytic reaction is captured with inert gas bubbles, which are carrier gases, and is removed from the reaction solution of the catalytic reaction by gas-liquid phase separation, thereby accelerating the catalytic reaction towards the forward reaction.

公开(公告)号：US20160204445A1

公开(公告)日：2016-07-14

申请号：US14889143

申请日：2014-08-29

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Kyu-nam JUNG ,  Jong-won LEE ,  Kyung-hee SHIN ,  Chang-soo JIN ,  Bum-suk LEE ,  Myung-seok JEON ,  Jae-deok JEON ,  Sun-hwa YEON ,  Joon-mok SHIM ,  Jung-hoon YANG ,  Jong-hyuk JUNG

IPC: H01M4/90 ,  H01M12/08

CPC classification number: H01M12/06 ,  C01G53/00 ,  C01G53/006 ,  C01G53/68 ,  C01P2002/34 ,  C01P2002/72 ,  H01M4/8668 ,  H01M4/8673 ,  H01M4/9016 ,  H01M4/9033 ,  H01M12/08 ,  H01M2004/8689 ,  Y02E60/128

Abstract: The present invention relates to a cathode catalyst for a metal-air battery, a method for manufacturing the same, and a metal-air battery comprising the same. More specifically, the present invention relates to a cathode catalyst for a metal-air battery, a method for manufacturing the same, and a metal-air battery comprising the same having an improved storage capacity for charging/discharging and an increased charge-discharge cycle lifetime. The cathode catalyst is characterized by having a layered perovskite structure, and including lanthanum and nickel oxides. The cathode catalyst including the layered perovskite is used for manufacturing a cathode for a metal-air battery, and a metal-air battery is provided using the same. As a result, the charge-discharge polarisation of the metal-air battery is decreased, the storage capacity is increased, and the charge-discharge cycle lifetime can be improved.

Abstract translation: 金属空气电池用阴极催化剂及其制造方法技术领域本发明涉及金属 - 空气电池用阴极催化剂及其制造方法，以及包含该阴极催化剂的金属 - 空气电池。 更具体地说，本发明涉及一种用于金属 - 空气电池的阴极催化剂及其制造方法，以及包含该阴极催化剂的金属 - 空气电池，其具有改善的充电/放电储存容量和增加的充放电循环 一生。 阴极催化剂的特征在于具有层状钙钛矿结构，并且包括镧和镍氧化物。 包括层状钙钛矿的阴极催化剂用于制造金属 - 空气电池用阴极，并且使用该阴极催化剂提供金属 - 空气电池。 结果，金属 - 空气电池的充电 - 放电极化减小，存储容量增加，并且可以提高充放电循环寿命。