I don’t have any experience storing cloth diapers between kids, but I got asked about it so I did some research.
If you’ve invested in a full stash of cloth diapers and they are still in good condition when your child potty trains you can either re-sell the diapers or put them away for you next baby.
One of the most obvious and most important things you will need to do to is make sure the diapers are completely clean. Doing at least a few extra hot rinses and possibly even using bleach is one way to make sure the diapers are completely clean.
After over a year of use, the elastic in the legs of the cloth diapers tends to wear out. You don’t have to repair the elastic right now if you don’t have the time, but if you can get the diapers repaired before putting them away it’s probably a good idea.
If you don’t really have the room to be storing cloth diapers that aren’t being used, consider loaning or renting your stash out to a friend.
Storing cloth diapers between kids is a smart way to save money.
Here are the links I suggest for info on storing cloth diapers between kids: