Samsung Electronics Co., Ltd.

Postech Academy-industry Foundation

Dong-jin Ham

Chan-ho Pak

Hyuk Jae Chang

Seung-sik Hwang

Jae-sung Lee

Jae-man Choi

Min-sang Song

Dae-jong Yoo

Jeong-kuk Shon

Sang-min Ji

Jun-hwan Ku

Jae-jun Chang

Sueng-hoon Han

Gang-hong Bae

A negative active material including graphite; silicon nanowires; and silicon nanoparticles, wherein a silicon nanowire of the silicon nanowires and a silicon nanoparticle of the silicon nanoparticles are each disposed on a particle of the graphite to form a composite with the graphite.

Negative active material, negative electrode including the negative active material, and lithium secondary battery including the negative electrode

An electrode catalyst for a fuel cell, a membrane electrode assembly including the electrode catalyst, and a fuel cell including the electrode catalyst. The electrode catalyst has excellent electrochemical activity compared to the currently commercially available Pt/C catalyst and is much cheaper than a catalyst using platinum. The electrode catalyst includes tungsten carbide having a specific surface area of about 10 to about 30 m/g, and a metal catalyst comprising palladium (Pd) or palladium alloy.

Electrode catalyst and method of preparing electrode catalyst for fuel cell, and membrane electrode assembly and fuel cell including same

Growing community of inventors

Anyang-si, South Korea

Dong-jin Ham