Hi Niu, I found this in the Financial Times which quoted Goldman...

Hi Niu,
I found this in the Financial Times which quoted Goldman Sachs as saying Li could be in hot demand.
Another consultant said:

“Tesla’s a big deal no question,” he says. “But China has the most growth. It is extremely worried about a shortage. Capacity that was supposed to come online [outside the country] didn’t, and demand is at a tipping point.”
Traditional miners are keen to exploit the potential of lithium. Rio Tinto is looking at developing a mine in Serbia that, it says, has the potential to supply a “significant portion” of global demand."

http://www.ft.com/intl/cms/s/0/e7fd87ec-8eb2-11e5-8be4-3506bf20cc2b.html#axzz3uLZvKNW6

I think the current jump it is the dawning on investors that if counries DO try and comply with the Paris agreement, Li will be in short supply in the near term until technology comes up with a better idea for storage batteries.
IMHO the price ride could well be bumpy so hang on but definitely do your own research.