Massive molecule with a lithium salt on every silicon atom. It's not going to have basically any vapor pressure and thus effectively no aroma unless there are breakdown products

Even if it were volatile, you likely wouldn't be able to smell it. The olfactory sense is complicated and weird, and targeted at organic chemistry. You can smell a few inorganic things (notably, elemental osmium, whose name literally means "smell" because that's so unusual), but your receptors are unlikely to trigger for anything that far removed.