My invention (by Fabi, 2d)

I'm writing about the battery.
The man who invented it was Lewis Urry, from Canada.
He got the idea when the Carbide Union asked him for the creation of a vttery with a longer duration. He experimented with some materials and he discovered that the zine had a longer duration than the common batteries. They were on sell in 1959.
Personally, I think that this invention is very useful if you use a lot of batteries.