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http://dx.doi.org/10.14478/ace.2018.1048

Electrochemical Properties of Lithium Anode for Thermal Batteries  

Im, Chae-Nam (The 4th R&D Institute - 4, Agency for Defense Development)
Yoon, Hyun Ki (The 4th R&D Institute - 4, Agency for Defense Development)
Ahn, Tae-Young (The 4th R&D Institute - 4, Agency for Defense Development)
Yeo, Jae Seong (The 4th R&D Institute - 4, Agency for Defense Development)
Ha, Sang Hyeon (The 4th R&D Institute - 4, Agency for Defense Development)
Yu, Hye-Ryeon (The 4th R&D Institute - 4, Agency for Defense Development)
Baek, Seungsu (The 4th R&D Institute - 4, Agency for Defense Development)
Cho, Jang Hyeon (The 4th R&D Institute - 4, Agency for Defense Development)
Publication Information
Applied Chemistry for Engineering / v.29, no.6, 2018 , pp. 696-702 More about this Journal
Abstract
Recently, the current thermal battery technology needs new materials for electrodes in the power and energy density to meet various space and defense requirements. In this paper, to replace the pellet type Li(Si) anode having limitations of the formability and capacity, electrochemical properties of the lithium anode with high density for thermal batteries were investigated. The lithium anode (Li 17, 15, 13 wt%) was fabricated by mixing the molten lithium and iron powder used as a binder to hold the molten lithium at $500^{\circ}C$. The single cell with 13 wt% lithium showed a stable performance. The 2.06 V (OCV) of the lithium anode was significantly improved compared to 1.93 V (OCV) of the Li(Si) anode. Specific capacities during the first phase of the lithium anode and Li(Si) were 1,632 and $1,181As{\cdot}g^{-1}$, respectively. As a result of the thermal battery performance test at both room and high temperatures, the voltage and operating time of lithium anode thermal batteries were superior to those of using Li(Si) anode thermal batteries. The power and energy densities of Li anode thermal batteries were also remarkably improved.
Keywords
thermal battery; electrochemical properties; Li anode; Li(Si) anode;
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Times Cited By KSCI : 2  (Citation Analysis)
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