Too Long; Didn't Read
New battery technologies take many forms, and the world has not yet decided which technology will be the winner. Lithium-ion batteries are the technology used in the majority of electric cars, PCs and mobiles today. They have a high energy density and low self-discharge, which is why they’re so widespread. Despite their benefits, they are safety hazard as they contain [flammable electrolytes], which can lead to explosions and fires. The only downside to this technology comes from components from mining, where it is extremely harmful to the environment.