Gas and hydrogen ion gettering properties of lithium
1998; Elsevier BV; Volume: 258-263; Linguagem: Inglês
10.1016/s0022-3115(98)00243-8
ISSN1873-4820
AutoresTomoaki Hino, Koh KANAYA, Ichiro Takahashi, Hideto Yanagihara, Masao Hashiba, Yuko HIROHATA, Kintaro MORI,
Tópico(s)Advancements in Battery Materials
ResumoThe gettering properties of lithium films for O2, CO2 and H2O were examined in a vacuum system with a heater for lithium evaporation. The absorbed amounts of O2, CO2 and H2O observed were in the ratio, O2/Li=0.2, CO2/Li=0.01 and H2O/Li=0.12. The gettering action for H2O was saturated at a relatively low lithium evaporation amount. The hydrogen uptake of a lithium oxide film was also investigated by using an ion irradiation apparatus with a thermal desorption spectroscopy. The ratio of retained hydrogen was H/Li ≃ 0.7, which was roughly the same as in the case of a fresh lithium film. The helium ion irradiation reduced the hydrogen retention of the lithium oxide film. The retained amount was 50% of that before the helium ion irradiation.
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