It’s looking like the 2020s will be the decade of the electric car. Battery prices fell 35 percent last year and are on a trajectory to make unsubsidized electric vehicles as affordable as their gasoline counterparts in the next six years, according to a new analysis of the electric-vehicle market by Bloomberg New Energy Finance (BNEF). That will be the start of a real mass-market liftoff for electric cars. Bloomberg's Tom Randall reports on "Bloomberg West." (Source: Bloomberg)