Production method for producing silicon clathrate II
AssigneesKabushiki Kaisha Toyota Jidoshokki, Toyota Jidosha Kabushiki Kaisha
InventorsMasanori Harata, Jun Yoshida, Kazuhiro Suzuki, Daichi Kosaka, Shinji Nakanishi
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Abstract
Provided is a novel production method for producing silicon clathrate II. In the production method for producing silicon clathrate II, in a reaction system in which a Na—Si alloy containing Na and Si and an Na getter agent coexist so as not to be in contact with each other, the Na—Si alloy is heated and Na evaporated from the Na—Si alloy is thus caused to react with the Na getter agent to reduce an amount of Na in the Na—Si alloy.
Claims13
A production method for producing silicon clathrate II, wherein, in a reaction system in which a Na-Si alloy containing Na and Si and an Na getter agent coexist so as not to be in contact with each other, the Na-Si alloy is heated and Na evaporated from the Na-Si alloy chemically reacts with the Na getter agent to reduce an amount of Na in the Na-Si alloy.
A production method for producing silicon clathrate II represented by composition formula Nax2Si136, wherein,
- in a reaction system in which silicon clathrate II represented by composition formula Nax1Si136 and an Na getter agent coexist so as not to be in contact with each other,
- the silicon clathrate II is heated and Na evaporated from the silicon clathrate II is thus caused to react with the Na getter agent to reduce an amount of Na in the silicon clathrate II, and
- x1 and x2 satisfy 0<x1≤24, 0≤x2<24, and x2<x1.
A production method for producing silicon clathrate II comprising,
- providing a Na-Si alloy containing Na and Si and an Na getter agent where the Na-Si alloy and Na getter agent coexist so as not to be in contact with each other,
- heating the Na-Si alloy to evaporate Na, and the evaporated Na chemically reacts with the Na getter agent to reduce an amount of Na in the Na-Si alloy.
Dependencies are inferred from the claim text.