Toray Advanced Materials Korea Inc.

Sm Lab Co., Ltd.

Korea Institute of Energy Research

Min Ho Seo

Young Woo Choi

Young Gi Yoon

Tae Young Kim

Jong Min Lee

Chi Young Jung

Beom Jun Kim

Mi Soon Lee

Ji Young Kim

Ji Yeon Choi

Seung Cheol Yang

Nam-jo Jeong

Provided is a cathode active material including a core including a compound represented by Formula 1; and a coating layer including a phosphorus-containing compound disposed on a surface of the core:LiNaM1M2O  Formula 1 In Formula 1, x, M1, M2, and α are the same as defined in relation to the present specification.

Cathode active material, method of preparing the same, and lithium secondary battery including cathode including the same

A pore-filled ion exchange polyelectrolyte composite membrane from which the surface ion exchange polyelectrolyte has been removed and a method of manufacturing the same are provided. The ion exchange polyelectrolyte composite membrane exhibits low film resistance and low in-plane-direction swelling degree, and has a smaller film-thickness than a commercial film, and thus, can be used for various purposes. In addition, since the pore-filled ion exchange polyelectrolyte composite membrane is continuously manufactured through a roll-to-roll process, the manufacturing process is simple, and manufacturing costs can be greatly reduced.

Pore-filled ion exchange polyelectrolyte composite membrane from which surface ion exchange polyelectrolyte has been removed and method for manufacturing same

Disclosed are a micropore-filled amphoteric membrane for low vanadium ion permeability, a method of manufacturing the same, and a vanadium redox flow battery including the amphoteric membrane. The micropore-filled amphoteric membrane for low vanadium ion permeability minimizes crossover of vanadium ions, which occurs between a catholyte and an anolyte in a redox flow battery, and has low membrane resistance and thus has remarkably improved performance as compared to commercially available ion-exchange membranes such as Nafion, and accordingly, can be effectively used in the manufacture of a redox flow battery. In addition, the micropore-filled amphoteric membrane is continuously manufactured through a roll-to-roll process, and thus the manufacturing process is simple and manufacturing costs can be greatly reduced.

Micropore-filled double-sided membrane for low vanadium ion permeability and method for manufacturing same

Provided is a cathode active material including a core including a compound represented by Formula 1; and a coating layer including a phosphorus-containing compound disposed on a surface of the core:LiZrWMOS&#x2003;&#x2003;Formula 1 In Formula 1, M, Zr, W, a, &#x3b1;, &#x3b2;, and b are the same as defined in relation to the present specification.

A multichannel fuel cell test station for testing a performance of a fuel cell membrane electrode assembly (MEA) is provided. The multichannel fuel cell test station may include a cell mounting portion configured to receive a plurality of unit cells, a gas supply configured to supply fuel gas to the unit cells and including a pressure generator and a mass flow controller (MFC), a temperature controller configured to maintain a constant ambient temperature of the unit cells, a humidifying portion configured to maintain a constant humidification state around the unit cells, a measurer configured to measure performances and electrochemical impedances of the unit cells, and a controller configured to control the gas supply, the temperature controller, the humidifying portion and the measurer.

Growing community of inventors

Gyeonggi-do, South Korea

Min Ho Seo