Electric vehicles

[Austin in the Shed]

I spoke to a chap whose son worked for JCB.He told me that They JCB, had produced a completely electric digger and did a study on what impact producing it had on the environment.
He said that producing just the battery pack was equal to six years use of a diesel powered digger.
What is the life of a battery pack ?
I had read that 90% of the battery material was not reusable,Is that true ?
There is talk of charging EV's by induction,(As an electric toothbrush ) I believe.
James Dyson has dropped the Idea of making EV's with no explanation.