You have a mental illness. I've watched you post across multiple forums with this OCD about trying to make everything last forever in storage.
You could have simply google searched for best practices for Li-Ion battery storage, but instead, like every other topic you have created in various forums, you instead ask a question that a google search will answer.
Why?
Why would you redundantly repeat the same question so many other people have asked, then expect to place a burden on every forum you ask the question in, instead of just doing your own research?
This is very bad form, your OCD is kind of like being a jerk. Forgive my language but this summarizes it better than a lengthy analysis.
I do remember you, being told to bury everything at the bottom of the ocean in a container full of silicone packets. Several times, on other forums when you asked about item after item.
Seek professional help. There is no need to keep a phone battery working long past when the phone is obsolete tech.