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The Charge-Discharge Performance of $Li/MoS_2$ Battery with liquid Electrolyte of Tetra(ethylene glycol] Dimethyl Ether[TEGDME]  

Kwon, Jeong-Hui (I-Oabe Center, ReCAPT, School of Materials Science and Engineering)
Ryu, Ho-Suk (PRC for Nano-Morphic Biological Energy Conversion and Storage)
Kim, Ki-Won (I-Oabe Center, ReCAPT, School of Materials Science and Engineering)
Ahn, Jou-Hyeon (Departrnent of Chemical and Biological Engineering, Gyeongsang National University)
Jeong, Yong-Su (Korea Institute of Materials science)
Lee, Kun-Hwan (Korea Institute of Materials science)
Ahn, Hyo-Jun (I-Oabe Center, ReCAPT, School of Materials Science and Engineering)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.20, no.3, 2009 , pp. 238-244 More about this Journal
Abstract
We investigated the electrochemical properties of lithium/molybdenum sulfide(Li/MoS$_2$) using tetra (ethylene glycol) dimethyl ether(TEGDME) electrolyte. The Li/TEGDME/MoS$_2$ cell showed the first discharge capacity of 288mAhg$^{-1}$. From the XRD, SEM results of the MOS$_2$ electrode in various cut-off voltage during charge-discharge process, MoS$_2$ partly changed into Li$_2$S and Mo during discharge and Li$_2$S partly recovered into MOS$_2$ and Li during charge. Full charged MOS$_2$ electrode showed lump shape of big size, which might be related to agglomerate of MoS$_2$ particles. Therefore, the degradation might be related to decrease of active material for electrochemical reaction by agglomeration of MOS$_2$.
Keywords
Li/Mos$_2$ battery; MoS$_2$ electrode; TEGDME; Charge-discharge process;
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