Electrochemical Properties of Li 3 V 2 (PO 4 ) 3 /C Cathode Materials Prepared Via Sol-Gel Process

It is reported that LVP(Li 3 V 2 (PO 4 ) 3 ) material has a good advantage for safety property, but this material showed low electric conductivity. Therefore, many researches have been performed to improve the electrochemical properties of LVP material by reducing of particle size with cation doping...

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Published inMeeting abstracts (Electrochemical Society) Vol. MA2016-01; no. 5; p. 510
Main Authors Choi, Seung-Woo, Kim, Min-Young, Yang, Seung-Hoon, Kim, Da-Hye, Noh, Tae-Hyoung, Kim, Ho-Sung, Lee, Moo Sung
Format Journal Article
LanguageEnglish
Published 01.04.2016
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Summary:It is reported that LVP(Li 3 V 2 (PO 4 ) 3 ) material has a good advantage for safety property, but this material showed low electric conductivity. Therefore, many researches have been performed to improve the electrochemical properties of LVP material by reducing of particle size with cation doping and carbon coating, etc. In here, we prepared nano-sized LVP/C composite materials with a high purity using a sol-gel method including a carbon coating and heat treatment process. As a result, nano LVP/C powders were obtained with calcination temperature of 750 ~ 900 °C. and the LVP/C material cells showed about 130 mAh/g in the range of 3.0 V to 4.3 V and 170 mAh/g in the range of 3.0 V to 4.8 V, approaching to the theoretical capacity. We will introduce lattice parameters calculated by Reitveld analysis and C-rate capacity with cycles on the samples in detail.
ISSN:2151-2043
2151-2035
DOI:10.1149/MA2016-01/5/510