First of all I propose to NOT use Li and use something else instead, like for example K (potassium). However, this requires betraying the church of Rossi.
It seems to be what did thermacore, one of the few well reported NiH success
http://lenr-canr.org/acrobat/GernertNnascenthyd.pdf
Nasa too was inpired
The cell tested at NASA is thus nearly the same as the one pictured and described in more detail under "Thermacore Experiment 4" in Reference 15, except that the Thermacore cell used an additional, inner cathode wound from 5000 m of nickel wire.
see also EPRI report appendix A
http://lenr-canr.org/acrobat/EPRIdevelopmen.pdf