Vanadium Hydride as Conversion Type Negative Electrode for All-Solid-State Lithium-Ion-Battery

Yasuhiro Matsumura; Keiji Takagishi; Hiroki Miyaoka; Takayuki Ichikawa

doi:10.2320/matertrans.MT-M2019105

Yasuhiro Matsumura, Keiji Takagishi, Hiroki Miyaoka, Takayuki Ichikawa

著者情報

キーワード: lithium ion battery, hydride negative electrode material, vanadium hydride, conversion reaction, solid state electrolyte, lithium borohydride

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2019 年 60 巻 10 号 p. 2183-2187

DOI https://doi.org/10.2320/matertrans.MT-M2019105

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抄録

Possibility as an electrode by using vanadium hydride, which is one of typical metal hydrides as hydrogen storage alloy, was examined for an all solid lithium ion battery. The results obtained show vanadium hydride as a negative electrode material by conversion reaction were clarified for the first time in this work. By analyzing the charging/discharging properties and XRD profiles for each process, the reaction mechanism of the conversion reaction of vanadium system and lithiation reaction of hard carbon was clarified.

Fig. 1 Galvanostatic charge-discharge curves for V-LiH electrode in voltage range of 0.005 V–1.0 V at 125°C. Fullsize Image

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