其定义
Alkaline is cheaper and uses no scarce catalysts, but it responds more slowly to changing power input. The choice between it and PEM is a direct trade between iridium and flexibility.
材料清单
放大规模 →数量为 per MW of capacity参考区间
| 材料 | 低 | 高 | 单位 | 基准 |
|---|---|---|---|---|
| Iron & Steel | 2,000 | 5,000 | kg | Stack, frames and vessels |
| Copper 关键 | 400.0 | 1,200 | kg | Power delivery |
| Nickel 关键 | 300.0 | 800.0 | kg | Electrodes and catalyst coatings |
| Potash 关键 | 100.0 | 400.0 | kg | Potassium hydroxide electrolyte |
Indicative range compiled from published technology studies and chemistry; verify against a manufacturer specification before use. 标注为"微量"的行表示该物料含量极低，无法以质量形式有效表达——其制约因素在于纯度或供应商数量，而非吨位。
替代方案
替代是材料领域最被低估的力量。当某种金属价格高涨或在政治上难以获取时，工程师便会绕开它进行设计——整座矿山的需求可能因此消失殆尽。
HVDC Transmission Cable
High-voltage direct-current cable, the technology used to move power hundreds of kilometres with low loss.
PEM Electrolyser
Splits water using a polymer membrane, platinum and iridium — fast-responding but catalyst-hungry.
Pressurised Water Reactor
The most common reactor design: enriched uranium fuel in zirconium tubes, water as both coolant and moderator.
Three-Way Catalytic Converter
The ceramic honeycomb in an exhaust that converts three pollutants at once, coated in platinum-group metals.