riba2233 wrote: markz wrote: parabellum wrote:
Does anyone know what chemistry LG MG1 cell is? Yes I tried googling and have data sheets, no mention about specific chemistry.
They are 3.62V nominal by data sheet, if it helps.
So its INR not NCA
https://batterybro.com/blogs/18650-whol ... -explained
I don't believe this blog, I mean Samsung surely has NCA cells marked with INR, so why wouldn't LG? Although MG1, based on capacity, could be either NMC or NCA. But MH1 and MJ1 must be NCA.
Earlier this Batterybro blogpost said INR was the same as NCA in the table at the top, while further down in the description of each chemistry instead it said INR was the same as NMC. So they didn't even agree with themselves what chemistry INR actually was, as the content of this blogpost was contradicting itself.
I know this because I actually emailed them a couple of times with a few months in between pointing this out, without them doing anything about it at the time, or even bothering to reply. The last email I sent was in April 2016. But apparently now they have finally changed their article to at least not contradict itself.
Here's what I wrote in the email to them:
1) In the table at the top it lists INR as being the same as NCA.
But further down the article it says that INR is the same as NMC instead (look for the “INR - NMC - Lithium manganese nickel” headline.
2) NMC stands for “lithium nickel manganese cobalt oxide”, not just “lithium nickel manganese” as it says in your table. The “CoO2” part in LiNiMnCoO2 stands for “cobalt oxide”. For other chemistries you have listed the full name in the table including the cobalt oxide part, so I think you should do this for the NMC chemistry as well.
But I agree that Samsung INR cells are NCA chemistry, so the blogpost is still not correct on this matter, unless the Samsung datasheets are stating a wrong chemistry, but I doubt that.
For example the Samsung SDI INR18650-25R datasheet clearly states this battery has NCA chemistry: https://www.powerstream.com/p/INR18650- ... asheet.pdf
However this Samsung 25R cell is listed as an example as an INR - NMC cell in the blogpost.
Not sure if any INR cells are actually NMC cells, does anyone have any example of NMC chemistry cells makred as INR? Any datasheet references or other documentation?