title: Te/C nanocomposites for Li-Te Secondary Batteries.
abstract: New battery systems having high energy density are actively being researched in order to satisfy the rapidly developing market for longer-lasting mobile electronics and hybrid electric vehicles. Here, we report a new Li-Te secondary battery system with a redox potential of ~1.7 V (vs. Li(+)/Li) adapted on a Li metal anode and an advanced Te/C nanocomposite cathode. Using a simple concept of transforming TeO2 into nanocrystalline Te by mechanical reduction, we designed an advanced, mechanically reduced Te/C nanocomposite electrode material with high energy density (initial discharge/charge: 1088/740 mA h cm(-3)), excellent cyclability (ca. 705 mA h cm(-3) over 100 cycles), and fast rate capability (ca. 550 mA h cm(-3) at 5C rate). The mechanically reduced Te/C nanocomposite electrodes were found to be suitable for use as either the cathode in Li-Te secondary batteries or a high-potential anode in rechargeable Li-ion batteries. We firmly believe that the mechanically reduced Te/C nanocomposite constitutes a breakthrough for the realization and mass production of excellent energy storage systems.
authors.affiliation: School of Materials Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 730-701, Republic of Korea.
authors.forename: Jeong-Uk
authors.initials: JU
authors.lastname: Seo
authors.affiliation: School of Materials Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 730-701, Republic of Korea.
authors.forename: Gun-Kyu
authors.initials: GK
authors.lastname: Seong
authors.affiliation: 1] School of Materials Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 730-701, Republic of Korea [2] Outstanding Research Group Program, Convergence Technology Research Institute, Kumoh National Institute of Technology, Gumi, Gyeongbuk 730-701, Republic of Korea.
authors.forename: Cheol-Min
authors.initials: CM
authors.lastname: Park