title: LiFePO4 mesocrystals for lithium-ion batteries.
abstract: Olivine LiFePO(4) is considered one of the most promising cathode materials for Li-ion batteries. A simple one-step, template-free, low-temperature solvothermal method is developed for the synthesis of urchinlike hierarchical mesocrystals of pristine LiFePO(4) as well as carbon-coated LiFePO(4) composites. Each urchinlike mesocrystal consists of LiFePO(4) sheets self-assembled via a dipolar field in spheres during a solvothermal process under the influence of Cl(-) anions. The obtained primary sheets of LiFePO(4) are single crystalline in nature and can be coated in situ with an amorphous nitrogen-doped carbonaceous layer several nanometers in thickness. To increase the conductivity of the carbon coating, the materials are subjected to further temperature treatment (700 °C) under an inert atmosphere. The lithium storage performance of the pure LiFePO(4) is compared with that of its carbon-coated counterparts.
authors: Max-Planck Institute of Colloids and Interfaces, Am Muhlenberg 1, 14476 Golm, Germany.
authors: Jelena
authors: J
authors: Popovic
authors: Rezan
authors: R
authors: Demir-Cakan
authors: Julian
authors: J
authors: Tornow
authors: Mathieu
authors: M
authors: Morcrette
authors: Dang Sheng
authors: DS
authors: Su
authors: Robert
authors: R
authors: Schlögl
authors: Markus
authors: M
authors: Antonietti
authors: Maria-Magdalena
authors: MM
authors: Titirici
mesh_terms: D003460:Crystallization; D011211:Electric Power Supplies; D055664:Electrochemical Techniques; D007477:Ions; D007501:Iron / Q000737:chemistry*; D008094:Lithium / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D010710:Phosphates / Q000737:chemistry*; D056951:Photoelectron Spectroscopy; D014961:X-Ray Diffraction
chemical_list: D007477:Ions; C473349:LiFePO4; D010710:Phosphates; D008094:Lithium; D007501:Iron