I echo sgb. Not only will you be well shot of this abusive and violent small-minded twunt, you'll also have the pleasure of watching him crumble when he realises that his reign of terror and tyranny is well land truly over.
What can any women see in a bullying gobsite like him except the light? Praise the lord you've seen it, honey, and now let's work to get him the fuck of your home asap.
As advised above, get as much of his violent behaviour documented as you can and don't hesitate to call the police if he so much as raises his voice again. Also, as advised by cestlavielife, make contact with your local police station, ask to be referred to a dv counsellor, and get the necessary markers in place so that you're guaranteed a speedy response next time he kicks off.
In addition, viisit www.womensaid.org.uk to locate your nearest branch. Give the a ring during office hours or call the national 24/7 helpline for rl support, advice, and recommendations for solicitors who are familiar with dv and well-versed in curbing the excesses of the perpetrators.
I've got no hesitation in saying that the twunt who has sucked the joy out of your life and that of your dc deserves everything that's coming to him, and I'm looking forward to your blow by blow account of his demise.
The future's bright and you are going to be infinitely better off in every way once he's not blocking your sunlight.