Niocorp Developments Ltd (NB)

[The_Gman]

He appears to be talking about Invinity and their vanadium flow batteries.
https://invinity.com/

Invinity is listed on the London Stock Exchange (AIM:IES) and the AQSE Growth Market (AQSE:IES) and trades in the USA on OTCQX (“IESVF”).

Invinity will be headquartered in the UK and Canada, with regional presence in the USA, South Africa and China.
On launch, Invinity will be active primarily across the UK, mainland Europe, North America, Asia, Australasia and sub-Saharan Africa.

Some more info on the OP:
https://secure2.angelpub.com/o/web/697521

For instance, their batteries are being used to supply round-the-clock power to the Pacific Northwest National Laboratory...

https://invinity.com/pnnl-to-install-24-hour-vanadium-flow-battery-doe/

They have recently partnered with the Department for Energy Security in London to build the UK’s largest grid-scale battery ever.

https://invinity.com/building-the-uk-biggest-battery/