> So we're going to burn all the lithium, instead of building batteries with it? There are lots of reasons DT fusion is stupid, but this isn't one of them. If

> So we're going to burn all the lithium, instead of building batteries with it? There are lots of reasons DT fusion is stupid, but this isn't one of them. If you made a 1kg lithium battery and filled it with DT fusion from one kg of fuel then you'd have to wear the battery out after filling it thousands of times and recycle it 10s of thousands of times. If you lost 100mg each time you recycled your 1kg battery, you'd run out of battery long before the fuel ran out. The massive resource consumption of fusion comes from burying the 10000t reactor with 100s of tonnes of materials much more exotic than lithium for 100 years after running 100kg of fuel through it