素材にとっての重要性
Two competing electrolyser designs have completely different material profiles. Alkaline needs nickel and steel; PEM needs platinum and iridium. Which one wins determines which metal becomes scarce.
その組成
全素材 →| 素材 | ここでの機能 | 重要度 |
|---|---|---|
| Copper クリティカル | Power delivery at very high current | 定義 |
| Iridium クリティカル | PEM anode catalyst | 定義 |
| Nickel クリティカル | Alkaline electrolyser electrodes | 定義 |
| Platinum クリティカル | PEM cathode catalyst and fuel cells | 定義 |
| Iron & Steel | Stacks, vessels and piping | 重要 |
| Titanium クリティカル | PEM bipolar plates | 重要 |
| Scandium クリティカル | Solid-oxide cell electrolyte | 現在 |
| Yttrium クリティカル | Solid-oxide cell electrolyte | 現在 |
Copper
The reddish metal that carries electricity better than anything except silver, and which humans have been smelting…
Iridium
The most corrosion-resistant metal known, and the second densest — a litre of it weighs about 22.5 kilograms.
Nickel
A silvery metal that resists rust, which is why it goes into stainless steel — and, more recently, into the cathodes…
Platinum
A dense, unreactive metal that speeds up chemical reactions without being consumed by them.
Iron & Steel
Iron with a little carbon in it, and the most-produced manufactured material on the planet.
Titanium
A metal as strong as steel at about half the weight, which does not corrode in seawater or in the human body.
