The battery was intended to be safer than most EV batteries at the time, per Bloomberg, as well as longer-range.
Apple canned its plans for a car back in February after reportedly spending roughly $1 billion a year on the project since 2014. While it ultimately didn’t come to fruition, the effort wasn’t a total failure; according to Bloomberg, battery insights gleaned from the car project helped other Apple teams with the development of the Vision Pro and Neural Engine chip.