SP Accordion is the best free accordion module for Joomla 3 which allows you to display your contents/articles with jquery effect.
SP Accordion Module has four styles as Default, Button, Simple and FAQ.
* Completely removed mootools dependency from joomla 3+
* Joomla 3.0 support
* Fixed several bugs
1. Multiple module same page
2. Option to hide first item on start up.
3. Added accordions collapse at OnClick
4. Added title limit
5. Read More link added
6. Author info and date option added