The iron-air battery.

[Stan]

It’s big and heavy but made from cheap materials and it’s probably going into production before too long.

[nowty]

I looked on their website and there is absolutely no info about, https://formenergy.com

1) Efficiency
2) Cycle Life
3) Self Discharge Rate
4) Maintenance ?, sounds similar to a flow battery so does it need pumps ?
5) Does the electrolyte need renewing ?
6) Does it require any other consumables ?

Good luck to them, but its another start up raising many millions with hyped media stories with various vague claims without a single real picture of a working prototype.

[Stinsy]

There seems to be a huge amount of money willing to invest in any company promising to deliver the next big thing in battery technology. The investors seem to do no due-diligence and seem to know nothing about battery technology. They just think "If I invest in 20 companies one will deliver me a 1000x return and make me rich(er)".

In these circumstances you cannot blame people for forming companies and coveting investment based on pretty much nothing.

[Mr Gus]

It's as if folk have already "forgotten" this weeks news about the chief of Nikola with cuffs on (of the locked metal variety) Eh!?

[nowty]

The fact that they are saying it works alongside lithium to give 100+ hours of storage suggests to me the charge and discharge rates will be very low.