If you are in an Accumulation scheme, upon Sealed Orders been served onyour Fund, they will perform a simple superannuation split.
This split will in short allow your husband to access his (previously yours) superannuation as he is aged 65.
If you are in a Defined Benefit scheme, upon Sealed Orders been served on your Fund, they will "flag" your benefit so that no release can be made until you reach a "condition of release". This in general is when you cease employment with your sponsoring employer. When a condition is met, then the superannuation split will occur (Note, some Defined Benefits will allow a superannuation split to occur whilst it is in operation, but this is uncommon these days).
PS Update your Will and binding nomination with your super scheme. If you are on talking terms with your ex, also remind him to do so as well. If you do not, pretty much your assets could be up for grabs for anyone who claims to be your de facto, boyfriend, financial dependant etc and it gets really messy if something should happen to you.