Hacker News Reader

Better energy density, since there is no permanent anode structure needed. See chart "b" from the article

The two replies here don’t really get at _how_ it’s better: it’s because you don’t have material in the battery that exists simply to be an anode. In effect, it’s more efficient by weight.

cheaper to manufacture with less parts, since anodes are usually an expensive part made from expensive materials and are hard to manufacture

ELI5: It's cheaper/easier to dump chemicals in a battery and have them form the structure, than to carefully build and install the structure into the battery.

Battery construction is process-intensive (lots of fiddly things you have to do carefully and in order), and everyone's looking for ways to cut that down.