title: Mesoporous silica-assisted carbon free Li2MnSiO4 cathode nanoparticles for high capacity Li rechargeable batteries.
abstract: Porous and spherical Li2MnSiO4 nanoparticles have been synthesized through a facile sol-gel route via a mesoporous silica template. Galvanostatic charge-discharge of the resultant Li2MnSiO4 cathode exhibits enhanced charge-discharge capacity relative to that of particles prepared by the conventional sol-gel process, up to 25% in discharge capacity, even without any particulate process such as milling with conductive agents. The standout electrochemical performance could be attributed to the unique high surface-to-volume ratio, porous geometry and improved accommodation of transformation strains during the electrochemical lithiation-delithiation process.
authors.affiliation: Advanced Battery Materials Research Group, Korea Research Institute of Chemical Technology, Yuseong, 141 Gajeongro, Daejeon 305-600, Republic of Korea. jdsuk@krict.re.kr shochoi@krict.re.kr.
authors.forename: Sue Jin
authors.initials: SJ
authors.lastname: Kim
authors.forename: Jungdon
authors.initials: J
authors.lastname: Suk
authors.forename: Young Jun
authors.initials: YJ
authors.lastname: Yun
authors.forename: Ha-Kyun
authors.initials: HK
authors.lastname: Jung
authors.forename: Sungho
authors.initials: S
authors.lastname: Choi