Lets say I have been in this field for commercial solutions (not marine) for 13+ years, and been in more than a few lithium facilities in Florida (1), China (many) and Korea (2). I am also limited by commercial and contractual agreements on disclosure.
Ok ....
North America (commercial and telecom) has been slow to recover and re-introduce Lithium after the fires, and associated product recalls, that happen 13 years ago - Avestor with LMP (went bankrupt, slow recovering as a new entity out of France) and EnerSys (who owns Odyssey).
The re-emergence of larger Lithium into NA (outside of consumer goods), will mostly be tied EV, but the storage business case is weak and suspect more so for marine.
I noted the pain EnerSys suffered (RedIon failures is a matter of public record, caused major network outages in the Midwest, et cetera), but will note there is some activity with some of the mentioned companies, but focus is motive and some limited storage.
Never-the-less, we are seeing some UPS solutions being deployed with Lithium given the large weight reduction. The common chemistry here - for weight gain - is NMC and we can migrate from 240kg to 70kg for 9kwhr of Storage at C10 and much more aggressive at 10C.
So to answer the question asked earlier, why limited major players engaged ....
* Previous large liabilities and claims has focus efforts to outside US.
* Start-up cost is high --- tooling, retooling and knowledge - battery companies need to develop new skills sets for BMS and electric-chemistry.
There is very little details about Lithium Pros, but limited details suggest it is a Chinese LFP cell. LFP chemistry is capable of much more, but to reduce the cost of the battery - lower process controls are used - followed by lowering actual performance. We deploy a lot of China LFP in Asia where initial cost is the driver.
Some of the claims on weight and speed are a little exaggerated.
IfSteve, I am not sure what the going competitive rate for Marine Lithium, but I suspect you should look at other alternatives, and carefully look at price. The MSDS are "basic" and they may make them in Knoxville, but probably not.
https://www.google.com/maps/uv?hl=en&pb=!1s0x885c161b1d77962f:0x2b4a550d4c2e5a2!2m22!2m2!1i80!2i80!3m1!2i20!16m16!1b1!2m2!1m1!1e1!2m2!1m1!1e3!2m2!1m1!1e5!2m2!1m1!1e4!2m2!1m1!1e6!3m1!7e115!4s/maps/place/lithium+knoxville/@36.0091323,-83.924256,3a,75y,276.73h,90t/data=*213m4*211e1*213m2*211sXD-ZgyhI_oOvSi33-vt7xA*212e0*214m2*213m1*211s0x885c161b1d77962f:0x2b4a550d4c2e5a2?sa=X!5slithium knoxville - Google Search!15sCAQ&imagekey=!1e2!2sXD-ZgyhI_oOvSi33-vt7xA&sa=X&ved=2ahUKEwjR_Yqaru_iAhUDheAKHWmWCF0Qpx8wCnoECAoQCw
This is a Streetview of the address LithiumPros listed. I also could not load their development website.
Never had a sample battery in my hands, never ripped off the cover, never put it on our test bench, never deployed it, and never visit the company. So my impressions may be wrong.
There is no please and on multiply occasions, I have considered NOT positing.
Last a typical lead battery - lets keep to TPPL construction.
* Boost Voltage - 2.4Vpc
* Float Voltage - 2.25Vpc
* Discharge Point - 2.02Vpc
* Disconnect, lets say - 1.70Vpc
So the voltage range on discharge is much smaller than hinted above, but voltage rate drop of LFP is lower than Lead on slow discharge. If you use a voltage activated disconnect, you may need to readjust.
Good evening