氢能到底好不好，来听听钢铁人马斯克怎么说啦
https://youtu.be/YNV8qi_rJBg
结论：很笨 extremely silly
It's just very difficult to make hydrogen,
store it and use it on a car. Hydrogen is
an energy storage mechanism. It's not a
source of energy. So, you have to get the
hydrogen from somewhere.
实在很难做出氢,储存它,再用在车上. 氢是个储存
能源的方式,不是一种能源. 所以你必须从其他地方
取得氢.
If you get the hydrogen from water, so you're
splitting H20. The electrolysis is extremely
inefficient as an energy process. If you took
a solar panel and use the energy from the solar
panel to just charge a battery pack directly,
compared to trying to split water, take the
hydrogen, dump the oxygen, compress the
hydrogen to an extremely high pressure or
liquify it, and then put it in a car and run
the fuel cell, it is about half the efficiency.
It's terrible. What would you do that?
It makes no sense.
如果你把水拿来分解H20. 电解水是效率非常低的过程.
如果你把太阳能板给充电池拿来比, 跟把水分解,拿氢,
丢掉氧,要极高压压缩氢或是让它液态化,再把它放到车
上跑. 这效率差了一半. 太惨了. 为什么要那样做?
完全不合理.
And then hydrogen has very low density. It's
a pernicious molecule that likes to get all
over the place. You get metal and .... from
hydrogen. If you get hydrogen leak, it's an
invisible gas. You can't even tell that it's
leaking. And it's extremely flammable. When
it does, it has an invisible flame.
而且氢的密度很低. 是很危险的分子会到处窜....如果
氢漏出来,是隐形的,你也看不出来在漏. 又易燃,燃烧
的火也是隐形的.
If you're gonna pick an energy storage mechanism.
Hydrogen is an incredibly dumb one to pick. You
should just pick methane. That's much much easier.
Or propane.
如果你要选储存能量的方法,氢是非常愚蠢的选择.不如选
甲烷,简单多了. 或是丙烷.
The best case hydrogen fuel cell doesn't win
against the current case of batteries, so then
obviously it doesn't make sense. That will
become apparent in the next few years. There is
no reason for us to have this debate. I've said
my piece on this. It will be super obvious as
time goes by. I don't know what more to say.
最理想的氢能燃料电池赢不过现有的电池,所以这很明显不
合理. 再过几年会更明白, 我们不需要在这里辩论. 我要
说的就是这样. 过些时间事情会变得清楚. 我不晓得还有
什么能说的了.