电动汽车的未来不怎么样

Good thinking on your part.

Here are some comments I would like to make:

1. 快速充电只有数学上的意义。
60 mph --> 3 hours (200 mile range?) --> 100 kw (?) * 3 hours --> 600 kw charge rate (use 0.5 half hour)

600 kw /200 (home voltage) --> 3000 amp --> may have to use copper wire with a diameter of, say, 20 cm (not a scientific number)

2. 换电池 --> Better Place Inc. is working on that. Then again, how many stations do we need? How those stations have to be constructed (imagine those are huge energy sinkers)? Don't we have to reconstruct all the electrical power grid to handle the surge?

3. 解决了汽车动力问题，也就解决了中国能源50%的问题???
Not so fast.

所有跟帖： 

• 不敢狗同 -披着牛皮的熊- ♂ (150 bytes) () 01/11/2010 postreply 16:05:43

• 換電池的危險度很大，需要的時間也長 -tsc12- ♂ (36 bytes) () 01/12/2010 postreply 09:41:50