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Author Topic: titanium phosphate - Manganese Oxide or 'Salt Water' batteries  (Read 1483 times)
fourfootfarm
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« on: November 30, 2015, 09:58:07 PM »

I'd not come across these before and I saw them on sale at a Navitron competitor as 'salt water' batteries so decided to do some reading.

Marketed as non toxic and environmentally sustainable these batteries appear to fill a gap in the market between traditional Lead Acid, and expensive Li-ion options. How ever they don't seem that cheap to me!

The company making them seems to be keeping their cards close to their chest though.

https://en.wikipedia.org/wiki/Aquion_Energy

They are purportedly 85% efficient which is up there with the better Lead Acids.

There seems to be a new battery tech along every 5 seconds. But seeing these actually on sale is interesting. 1200 for 2kw @ 48v would buy you a big chunk of traction battery though.

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Outback FM60. EPsolar 30a MPPT and a bunch of Tristar 45's. Hodge Podge of solar ~ 4500w. Various generators and 1000ah 24v forklift battery.

Turkish Turnip
skyewright
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« Reply #1 on: November 30, 2015, 10:19:52 PM »

https://en.wikipedia.org/wiki/Aquion_Energy

They are purportedly 85% efficient which is up there with the better Lead Acids.

From the link (with my emphasis):
Quote
According to the company, it will be 85 percent efficient.

That seems uncomfortably far from "are" from a product that's apparently being offered for sale right now with an availability of "Usually 1-2 weeks".
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Regards
David
3.91kWp PV  (17 x Moser Baer 230 and Aurora PVI-3.6-OUTD-S-UK), slope 40, WSW, Lat 57 9' (Isle of Skye)
desperate
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« Reply #2 on: November 30, 2015, 10:33:14 PM »

I think one of the key drivers for this tech was to not use rare exotic and toxic elements in their construction, as such it is hoped to be able to scale up production without hitting resource bottlenecks fingers crossed!

Desp
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www.jandhbuilders.co.uk

still a crazy old duffer!
fourfootfarm
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« Reply #3 on: November 30, 2015, 10:50:34 PM »

I think if they aren't just investment capitol guzzling vapourware they might be interesting for use in large scale grid storage. But as yet no concrete info anywhere other than shiny techblog articles.
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Outback FM60. EPsolar 30a MPPT and a bunch of Tristar 45's. Hodge Podge of solar ~ 4500w. Various generators and 1000ah 24v forklift battery.

Turkish Turnip
DanielCoffey
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« Reply #4 on: December 01, 2015, 07:36:06 AM »

I understand that all their commercial customers are still under NDA too. I looked at them but don't believe they are accepting retail orders yet. They seem to sit price-wise just under Lithium (from memory, roughly 2.5k per stack and 14k per pallette - correct me if I am wrong) and are slow to charge or discharge but have a reasonably long cycle life. They appear to be pretty much fit and forget.

I liked the idea but excluded them on their lack of retail information.
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