I can't get my iphone battery out?

I'm trying to replace my battery, but i can't seem to get it out please help

I assume the adhesive is giving you trouble? You can use a heat gun to try and loosen the adhesive(try not to apply heat to the board or getting the battery too hot). Then there should be a pull tab that will allow you to lift the battery out. You may need to use a plastic scribe to lift the battery away as you tug the pull tab.

There's no way for you to take it out. It will void your warranty if you take it out thats why the back is sealed. Take it to the apple store and they will replace it for $79