A new battery with some promise?

I heard about this on The Science Show a few weeks ago - Sydney University is apparently commercialising a new, safe, gel battery which (it is envisaged) is so safe and reliable it could be incorporated structurally within building walls.

Surely they don't last forever, though?   I would think it useful to still make them reasonably accessible for ultimate replacement.

Still, the University sounds very upbeat about it.

Read the Science Show story here, and the University's PR blurb here.  (I'll add an extract):

The zinc-bromide chemistry used by Gelion operates safely without the need for active cooling and uses 100 percent of the battery’s capacity. Further, its electrode surfaces can be rejuvenated remotely, using state-of-the-art battery management systems, without the need for on-site servicing – making it ideal for stationary energy storage applications in all areas, including remote sites.
About Gelion

Gelion Technologies Pty Ltd (‘Gelion’) was founded in April 2015 as a spin-out of the University of Sydney. The company’s novel battery technology provides a low-cost, safe and long-life energy storage solution. Gelion is owned by Gelion UK, a joint venture between management and Armstrong Energy, who oversee the corporate governance and funding of the business, as well as assisting in long-term strategic planning. Gelion is headquartered in Sydney, Australia.
For more information visit: www.gelion.com and www.gelion.com/video