Nearly all current photovoltaic cell production is polysilicon, which does not require any rare elements or any rare-earth elements. There are some PV technologies that use rare elements such as indium and selenium, but they do not use rare-earth elements either; and, in any case, they have been pretty much priced out of the market by falling polysilicon costs. There are many kinds of rechargeable batteries, but none of them, to my knowledge, use rare-earth elements. In particular, the lithium-ion batteries in current large-scale use do not even use any rare elements. (Nickel-cadmium batteries used cadmium, which is about as rare as silver, but not a rare-earth element.)

Finally, rare earth elements are not rare (a dozen of them are each individually more abundant than tin), and there is no danger of depleting them.

These are the factual errors in the first factual sentence of your comment. This level of reliability leads me to believe that you are commenting with no concern for whether your comment is true or false, even without doing a similar level of investigation of the rest of your comment.