I think those are Li-Po (Lithium-Polymer) and of different composition. I fly radio-control and our field does not allow charging the Li-Po batteries on site anymore as we had three fires in two months from two planes and one helicopter bursting into flames on a quick 12v field-charger. The helicopter was sitting inside the open hood of the plastic engine "spat" in the guy's car and did some pretty goods paint & plastic damage to the vehicle on the way out.
There's no doubt about it! That car is blindingly fast, cheap to run and goes a long way on a charge. I can't wain until that technology gets ported down to a car that's reasonably fast, cheap to run and goes a reasonably long way on a charge and...... is affordable.99000 euros is quite a bundle to spend, even on a nice car.
The Sony story is slightly more complicated. The batteries did contain impurities, and were LION, but that is not the whole story. These impurities put them at the edge, maybe below, of the performance specifications. The laptop manufactures ran the batteries to the top edge of their performance limits in order to get maximum battery life. In laptop terms the length you can run without a recharge. The problem with LION is it can develop thermal overrun when pushed to hard. Normal circuits prevent the condition from occuring. But given the laptop with no safety margin and the battery on the edge, well we saw the flames. Just some bad engineering by Sony and manufactures. The technology can be built safe. It just requires safety circuits to keep the battery out of the thermal overrun. Responsible engineering should provide an appropriate safety margin.