High‐Capacity Cathode Material with High Voltage for Li‐Ion Batteries

Cathode Material with Superior Rate Capability for Na-Ion Batteries

Dr. L. Liu, Prof. X. Li, Dr. S.-H. Bo, Dr. Y. Wang, Dr. N. Twu, Prof. G. Ceder Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge , MA 02139 , USA E-mail: [email protected] Prof. X. Li John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge , MA 02138 , USA Prof. H. Chen The Woodruff School of Mechanical Engineering Georg...

C/Li2MnSiO4 Nanocomposite Cathode Material for Li-Ion Batteries

Phospho-Olivine as Advanced Cathode Material for Lithium Batteries

Nano-sized and micron-sized LiFePO4 electrode materials were prepared by a sol gel and coprecipitation reactions. An improvement of the cycling and rate performances in lithium cells was observed for the carbon coated LiFePO4 materials. The coating process uses a solid/gas-phase reaction which consists of decomposing propylene gas, as carbon source, inside a reactor containing olivine LiFePO4 m...

V2O5 NanoElectrodes with High Power and Energy Densities for Thin Film LiIon Batteries

Nanostructured V 2 O 5 thin fi lms have been prepared by means of cathodic deposition from an aqueous solution made from V 2 O 5 and H 2 O 2 directly on fl uorine-doped tin oxide coated (FTO) glasses followed by annealing at 500 ° C in air, and studied as fi lm electrodes for lithium ion batteries. XPS results show that the as-deposited fi lms contained 15% V 4 + , however after annealing all t...

LiCoPO4 cathode from a CoHPO4·xH2O nanoplate precursor for high voltage Li-ion batteries

A highly crystalline LiCoPO4/C cathode material has been synthesized without noticeable impurities via a single step solid-state reaction using CoHPO4·xH2O nanoplate as a precursor obtained by a simple precipitation route. The LiCoPO4/C cathode delivered a specific capacity of 125 mAhg(-1) at a charge/discharge rate of C/10. The nanoplate precursor and final LiCoPO4/C cathode have been characte...