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http://dx.doi.org/10.7464/ksct.2014.20.4.433

Electrochemical Characteristics of Ru Added Li4Ti5O12 as an Anode Material  

Cho, Woo-Ram (Department of Chemical Engineering, Chungbuk National University)
Na, Byung-Ki (Department of Chemical Engineering, Chungbuk National University)
Publication Information
Clean Technology / v.20, no.4, 2014 , pp. 433-438 More about this Journal
Abstract
There is an increasing interest in the development of rechargeable batteries suitable for use in both hybrid electric vehicles and energy storage systems that require higher charge & discharge rates, bigger battery sizes and increased safety of the batteries. Spinel-type lithium titanium oxide ($Li_4Ti_5O_{12}$) as a potential anode for lithium ion batteries has many advantages. It is a zero-strain materials and it experiences no structural change during the charge/discharge precess. Thus, it has long cycle life due to its structural integrity. It also offers a stable operation voltage of approximately 1.55 V versus $Li^+/Li$, above the reduction potential of most organic electrolyte. In this study, Ru added $Li_4Ti_5O_{12}$ composites were synthesized by solid state process. The characteristics of active material were investigated with TGA-DTA, XRD, SEM and charge/discharge test. The capacity was reduced when Ru was added, however, the polarization decreased. The capacity rate of $Li_4Ti_5O_{12}$ with Ru (3%, 4%) addition was reduced during the charge/discharge precess with 10 C-rate as a high current density.
Keywords
$Li_4Ti_5O_{12}$; Ru; Lithium ion battery; Anode material;
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Times Cited By KSCI : 2  (Citation Analysis)
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