I remember there was a discussion regarding full battery based AIP SSK some time ago because Japan is doing so. At the time people were concerned of safty issue of Li-on type.
From the same paper that I quoted in CV-18 thread regarding the arrester, there is another chapter talking about PLAN's choice of Li-on battery.
The purpose of this application is for rail gun. But the article does emphasize that PLAN choose
Lithium Iron Phosphate (LFP) type for safety consideration. So it is clear that in case PLAN decide to go "Japanese way AIP" they would use LFP.
Another interesting thing is that, Ma Weiming claims that it is USN "copying" PLAN's footstep in taking the same solution (battery+super-capacitor) in their rail gun. Of course, copy is a wrong word as engineers will reach the same conclusion if the application has the same demand, so I put quotation mark around it. But I must put this word "copy" up because I have seen too many times that the word was used on China literally whenever China came up with something similar to US.
Background, USN initially used flywheel in place of battery.
