Creation of a Novel Hydrogen Storage Materials using Lithium Absorbing Alloy

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In this work, we focused on the Li absorbing alloy, to create a novel hydrogen storage systems, where the Li ion can be inserted into and extracted from the alloy by using the hydrogenating and dehydrogenating reactions. In particular, the silicon-lithium system, which is recognized as a next generation anode of the lithium ion secondary battery, has been investigated, leading to the clarification of a relationship between thermodynamic properties of de/ hydrogenations and the electrochemical properties of the anode material. This relationship was applied for the germanium systems based on the analogy with the silicon system, which conducts us to the creation of novel hydrogen storage systems