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Lead Crystal Silicon Dioxide batteries

 
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Has anybody got experience with silicon dioxide batteries - Soneil is a brand - for off-grid solar? I would really appreciate hearing your experiences.
I expect to replace our FLA battery bank in Fall 2021, and am researching possibilities.
Lithium Iron Phosphate sound good, but I am concerned that, up here in northern Canada, we are too cold for the temperature range.
 
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No hands-on experience W/silicon dioxide.  I'm considering LTO (lithium titanate) cells next fall.
Superior low temperature tolerance, but lower energy density (just buy more cells).  

https://en.wikipedia.org/wiki/Lithium-titanate_battery

https://www.greentecauto.com/product-category/repurposed-batteries
 
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C Chasens wrote:Has anybody got experience with silicon dioxide batteries - Soneil is a brand - for off-grid solar? I would really appreciate hearing your experiences.
I expect to replace our FLA battery bank in Fall 2021, and am researching possibilities.
Lithium Iron Phosphate sound good, but I am concerned that, up here in northern Canada, we are too cold for the temperature range.


Lithium iron have trouble charging when it is cold but no trouble discharging when cold. Some companies are incorporating heaters into their assemblies but an insulated sealed box with a small heater works just as well. 5 degrees celcius is fine. It's a little inconvenient but considering there is no absorb stage losses it's worth it. There is no off gassing so no problem with the heater or keeping them in a warm area.
My next bank will most likely be lithium.
 
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C,

What advantages does the Si battery chemistry give over other battery chemistries?

At present I have a little 12v, 15 ah battery box that provides me USB and 12v dc power.

I plan to build a 100 ah version with a 1000 watt inverter for ac power and a host of dc outputs.  I was thinking about using an SLA battery for simplicity and budgetary reasons, but I am open to other battery types if they have desirable attributes.

Thanks in advance,

Eric
 
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