Electrochemical features of LiMnPO₄ olivine prepared by sol-gel pathway

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• 作者：Daniele Di Lecce^a ; Tao Hu^b ; Jusef Hassoun^c ; ^{jusef.hassoun@unife.it}
• 关键词：LiMnPO4 ; Olivine ; Sol-gel ; Lithium diffusion ; Battery ; Impedance spectroscopy
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：693
• 期：Complete
• 页码：730-737
• 全文大小：1567 K
• 卷排序：693

文摘

LiMnPO4 electrode is prepared by a sol-gel synthesis. The lithium diffusion characteristics of the material are studied. Electrochemical impedance spectroscopy is performed at several states of charge. The lithium diffusion coefficient varies within 10−14 and 10−13 cm2 s−1 Tests at 70 °C reveal remarkable enhancement due to improved electrode kinetics.