Why everything from Samsung phones to hoverboards are (literally) exploding
▻http://www.marketwatch.com/story/why-everything-from-samsung-phones-to-hoverboards-are-literally-explodi
Behind all the incidents is the small, powerful and ubiquitous lithium-ion battery, a technology that has been ascendant for more than a decade in a wide variety of products.
#catastrophe_écologique
▻http://www.koreatimes.co.kr/www/news/nation/2016/11/116_217279.html
the total volume of Note 7s includes: more than 20 tons of cobalt, 1 ton of tungsten, several kilograms of tantalum, 20 to 60 kilograms of palladium, 100 kilograms of gold and more than 1 ton of silver.
Additionally, producing the materials involves environmental destruction caused by mining ore and fossil fuels. Particularly in gold mining, toxic chemicals including cyanide and mercury are needed, according to a U.N. Environment Program report in 2013.