In Submarine Matters Russian Submarine Industry - Lada discontinued - no AIP -LIBs? of 28 January 2016 I commented:
The comments that followed, such as from KQN, prompted me to do a bit of research. I located Everspring Global Limited:
So China (with Thunder Sky - Winston - Everspring) appears to have the intention, money and Lithium supplies to develop LIBs for submarine. LIBs as an emergency backup for SSBN and probably SSN reactors. This may be a step towards full LIBs for SSKs (diesel-electric subs) such as an Improved Yuan class.
Russia (with Liotech) may be the junior partner in a joint Chinese-Russian LIB effort. Russia may have the intention but not the money or Lithium supplies given its current economic problems.
Russia may, however, be able to barter its higher technical know-how (especially in nuclear subs and reactors) for Chinese LIBs or for more Chinese backing of Liotech.