title: Encapsulation of metal oxide nanocrystals into porous carbon with ultrahigh performances in lithium-ion battery.
abstract: A simple and industrial scalable approach was developed to encapsulate metal oxide nanocrystals into porous carbon (PC) with a high distribution. With this method, the composite of PC-metal oxide were prepared in a large amount with a low cost; particularly they exhibit ultrahigh performances in lithium-ion battery applications. For example, the PC-CoOx and PC-FeOx show a high capacity around 1021 mA h g(-1) and 1200 mA h g(-1) at the current density of 100 mA g(-1) respectively, together with an excellent cycling ability (>400 cycles) and rate capacity even at the high current densities of 3 A g(-1) and 5 A g(-1).
authors: Department of Energy Engineering, Hanyang University, Seoul,133-791, Republic of Korea.
authors: Jun
authors: J
authors: Ming
authors: Jin-Bum
authors: JB
authors: Park
authors: Yang-Kook
authors: YK
authors: Sun
mesh_terms: D002244:Carbon / Q000737:chemistry*; D011211:Electric Power Supplies; D008094:Lithium / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D016062:Porosity
chemical_list: D010087:Oxides; D002244:Carbon; D008094:Lithium