This will be easy for you to handle.  When you get ready to finalize your divorce, you'll need to prepare two court documents.  First is the Decree of Dissolution, and the second is the Findings and Conclusions.

On the Decree, there is a space for "husband's liabilities" - it's around Paragraph 3.10 or thereabouts.  Check the box that says "Husband shall remain responsible for all dates incurred by him since the date of separation which is _________________(DATE)           .  I would also include this language "including but not limited to LIST NAMES OF CREDIT CARDS HERE".

THAT WILL COVER YOU.  Good luck.