The effect of SiO2 nanoparticles in Li3V2(PO4)(3)/graphene as a cathode material for Li-ion batteries
- Authors
- Choi, Mansoo; Yoon, In-Ho; Jo, In-Ho; Kim, Hyun-Soo; Jin, Bong-Soo; Lee, Young Moo; Choi, Wang-Kyu
- Issue Date
- Dec-2015
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Li3V2(PO4)(3); SiO2 nanoparticles; Graphene; Electrochemical performance; Li-ion battery
- Citation
- MATERIALS LETTERS, v.160, pp.206 - 209
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS LETTERS
- Volume
- 160
- Start Page
- 206
- End Page
- 209
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/133951
- DOI
- 10.1016/j.matlet.2015.07.085
- ISSN
- 0167-577X
- Abstract
- We synthezised the Li3V2(PO4)(3)/graphene composite with different SiO2 sources as a cathode meterial for lithium ion batteries. The SiO2 nanoparticle are spherical shape and exist on the LW surface observed by a scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The effects of different SiO2 sources in Li3V2(PO4)(3)/graphene composite were investigated by electrochemical performanc such as a galvanostatic charge/discharge, a cycling performance, and an electrochemical impedance spectroscopy (EIS), respectively. The LVP-mSiO(2) displayed discharge capacity of 183 mAh g(-1) in a potential range of 3.0-4.8 V and higher cycling performance. These improved electrochemical performance is attributed to the well dispersion SiO2 nanoparticles and low charge transfer resistance.
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