@article{oai:niigata-u.repo.nii.ac.jp:00003581, author = {Uematsu, Kazuyoshi and Ochiai, Ayumi and Toda, Kenji and Sato, Mineo}, issue = {1343}, journal = {日本セラミックス協会学術論文誌, 日本セラミックス協会学術論文誌}, month = {Jul}, note = {LiFePO_4 has been synthesized using FeC_2O_4・2H_2O, LiOH・H_2O and NH_4H_2PO_4 as raw materials by a temperature controllable microwave heating oven. The products were characterized by X-ray diffraction, scanning electron microscope and electrochemical methods. Measurement of dielectric properties of individual raw materials and products at a constant microwave frequency revealed that the starting mixture preheated at 320℃ as well as added acetylene black were well microwave absorbers. Single phase olivin-type LiFePO_4 with uniform and fine particle sizez was successfully synthesized by microwave heating at 350℃ in 15 min. The LiFePO_4 cathode materials thus obtained had a higher discharge capacity and better cycle performance than those of the LiFePO_4 sample by a conventional solid-state reaction.}, pages = {450--454}, title = {Solid Chemical Reaction by Microwave Heating for the Synthesis of LiFePO_4 Cathode Material}, volume = {115}, year = {2007} }