Hydrogen Fuel Cell · 氢燃料电池
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| fuel cell/ˈfjuːəl sel/ | 燃料电池 | rán liào diàn chí |
| water/ˈwɔːtə/ | 水 | shuǐ |
| energy/ˈenədʒi/ | 能量 | néng liàng |
A cell that runs on hydrogen
- A fuel cell 燃料电池 makes electricity from hydrogen gas.
- It is not an engine — nothing burns inside it.
- Instead, hydrogen and oxygen combine chemically.
- That reaction pushes out an electric current.
一种靠氢运转的电池
- 一个燃料电池(fuel cell)从氢气产生电。
- 它不是引擎——里面什么都不燃烧。
- 相反,氢和氧在化学上结合。
- 那个反应推出一股电流。
Only water comes out
- Hydrogen flows in one side; oxygen from the air enters the other.
- They combine to make electricity — and pure water 水.
- The exhaust is water vapour, not smoke or CO2.
- So a fuel-cell car drips water from its tailpipe.
只有水出来
- 氢从一侧流入;来自空气的氧进入另一侧。
- 它们结合产生电——以及纯水(water)。
- 排放物是水蒸气,不是烟雾或CO2。
- 所以燃料电池汽车从排气管滴出水。
The only waste from a hydrogen fuel cell is… · 氢燃料电池唯一的废物是……
A fuel cell combines hydrogen and oxygen into electricity, leaving only water · 水 — no CO2 at the vehicle. · 燃料电池把氢和氧结合成电,只剩下水——在车辆处没有CO2。
The hidden catch
- Hydrogen gas is not lying around — it must be made.
- Making it takes energy 能量, often from fossil fuels.
- If that energy is dirty, the CO2 just moves upstream.
- Hydrogen is only truly clean if made with renewable power.
隐藏的问题
- 氢气不是随处可得的——它必须被制造。
- 制造它需要能量(energy),常常来自化石燃料。
- 如果那能量是脏的,CO2只是移到了上游。
- 氢只有用可再生电力制造时才真正干净。
How a hydrogen fuel cell works · 氢燃料电池如何工作
Follow hydrogen and oxygen combining into electricity, with only water left over. · 跟随氢和氧结合成电,只剩下水。
A fuel cell makes electricity by… · 燃料电池通过以下方式产生电……
A fuel cell is not an engine — it combines hydrogen and oxygen chemically to push out an electric current. · 燃料电池不是引擎——它把氢和氧在化学上结合来推出一股电流。
Whether hydrogen is truly clean depends on how the ____ used to make it was produced. · 氢是否真正干净取决于用来制造它的____是如何生产的。
Making hydrogen takes energy; if that comes from fossil fuels, the CO2 just moves upstream. · 制造氢需要能量;如果那来自化石燃料,CO2只是移到了上游。
Where it fits
- Fuel cells are quiet, efficient, and clean at the point of use.
- They can power cars, buses, and buildings.
- But hydrogen is hard to store and the fuel cells are costly.
- So they are a promising but still-developing technology.
它适合哪里
- 燃料电池在使用点安静、高效、干净。
- 它们能给汽车、公交车和建筑供电。
- 但氢难以储存,而且燃料电池昂贵。
- 所以它们是一种有前途但仍在发展的技术。
A hydrogen fuel-cell car gives off water instead of exhaust fumes. · 氢燃料电池汽车放出的是水而不是废气。
The tailpipe of a fuel-cell car drips water, not CO2 or smog — the pollution is only in making the hydrogen. · 燃料电池汽车的排气管滴出水,不是CO2或烟雾——污染只在制造氢的过程中。
Select all · 所有 true statements about hydrogen fuel cells. · 选出关于氢燃料电池的所有正确说法。
Fuel cells emit only water and use no burning — but producing the hydrogen can still pollute if fossil energy is used. · 燃料电池只排放水且不燃烧——但如果使用化石能量,生产氢仍然能污染。
"Zero-emission" is only half the story. A fuel-cell car really does emit only water. But hydrogen has to be manufactured, and that step takes energy. Make the hydrogen with coal power and you've just moved the CO2 from the car to the factory. The technology is clean; whether the whole system is clean depends on the energy source.
"零排放"只是故事的一半。燃料电池汽车确实只排放水。但氢必须被制造,而那一步需要能量。用煤电制造氢,你就只是把CO2从汽车移到了工厂。技术是干净的;整个系统是否干净取决于能量来源。
Two hydrogen cars:
- Both drip only water from the tailpipe as they drive — genuinely clean on the road.
- But one was fuelled with hydrogen split using solar electricity — clean end to end.
- The other's hydrogen was made using coal power — so its CO2 was simply released back at the plant. Same car, very different footprint.
两辆氢汽车:
- 两辆在行驶时都只从排气管滴出水——在路上真正干净。
- 但一辆加的氢是用太阳能电力分解的——从头到尾干净。
- 另一辆的氢是用煤电制造的——所以它的CO2只是在电厂被释放回去。同样的车,截然不同的足迹。
A hydrogen fuel cell combines hydrogen and oxygen to make electricity, emitting only water — no burning, no CO2 at the vehicle. The catch: making the hydrogen takes energy, so it is only truly clean if that energy is renewable. Fuel cells are clean and quiet but costly and still developing.
氢燃料电池把氢和氧结合来产生电,只排放水——不燃烧,在车辆处没有CO2。问题:制造氢需要能量,所以它只有在那能量可再生时才真正干净。燃料电池干净又安静,但昂贵且仍在发展。