Another reason not to buy stuff from China
For those of you who don't remember your high school and/or college Chem. class all that well, let me refresh your memory: All members of the first column of the periodic table are highly reactive!
Which is why when you buy a battery made of Lithium it is important to buy it in a country that has a little bit of a higher standered for quality control. It's not that I think we shouldn't be trading with foerign countries, I'd just like these countries to remember that when you get a deal on something that is even cheap by Chinese standards, you'll probably only get what you pay for. And having one of your turned off laptops explode and burn down someones house is bad PR by anyones standerds.