Ha, ha....I repeat for you again what you said: nickel & lithium...

Ha, ha....I repeat for you again what you said: nickel & lithium
I said: The two metals cannot normally be used together in a battery and stopped there.
Now, I may add that there are no electrolytes compatible with both, that's why The two metals cannot normally be used together in a battery

I never said Cannot Be Used.
You may need to resource a bit more on this words "cannot normally be used together"
But is always a way around it

Researchers have found a way to create a battery out of Nickel and Lithium that can store more than 3.5 times the energy of lithium-ion batteries and are much safer to boot.

Granted the Ni-Li battery has some hurdles to overcome, namely that is an incredibly complex battery and manufacturing it may be difficult.

So until then my friend I'm happy with Lithium, Cobalt & especially Graphite