Lithium batteries hold more than twice the energy life then regular nickel cadmium batteries do, which is why they are the number one batteries worldwide.
Lithium batteries were pioneered in the early 1920's, but didn't become a popular household item until the 1970's. Both rechargeable and non-rechargeable types have powered computers and other related electronics since then. However, there are certain safety precautions that must be taken in order to avoid health issues. The effects of an exploding battery can be quite damaging to eye tissues. Fire can aggravate a battery to explode, and the corrosive material inside the battery cells can get sprayed right into the eyes, causing severe pain. The eyes need to be washed for a good 15 minutes straight, and medical attention should be sought immediately thereafter. Blindness is most definitely a potential threat from this kind of lithium ion battery explosion. Skin issues can also be a result of exploding lithium ion batteries. Additionally, handling of batteries that are leaking the material from the cells can cause both allergic reactions and severe burns to the skin.