This is good advice. Also do not store too cold or too hot. Although that would mean storing the battery inside in a basement or something where fire can be bad. So next thing you can do that I've been debating is purchasing a fireproof cabinet and placing it on a cement wall with a food of space from anything flammable. I'd store all my Lithium batteries there probably... power tools, lawn equipment battery, cab booster, ebike battery.

Buying an ebike off a trusted known brand will lead to better luck. A tried a true cell from.... crap I was once told the 3 big trustworthy battery companies... i think it was Samsung, LG, and I can't remember the third, maybe Phillips... bah, anyway, those cheap Chinese batteries from aliexpress should be avoided. They have not done the northamerican safety tests for batteries. You can not trust them. It's unlikely an ebike company will build there own battery. They would get it sourced and it would be up to the company designing the bike to do their due diligence.

So it would be good to research your ebike or the battery vendor and see if you can find some info on defective batteries.