Thank you for the question and I am sorry to hear about this matter. These are really two separate issues. Firstly, I you are in an abusive relationship there are many organisations who can assist you and the children if you require immediate help. The citizens advice bureau will be able to assist in signposting some local organisations who can help. In terms of the business, as a director you have a legal fiduciary duty to protect the company. If you have a legitimate concern that the account could be emptied, or the money could be use for him to leave the country then you would performing a disservice if you were to hand it over to him. In that case, I would keep the account in your name, however, you must ensure that the business expenses, salaries etc. are paid as they should be. I would then look at instructing a soldier, you can get your husband to provide a legal undertaking that he will or will not perform certain actions. If the was to then breach this undertaking you can take legal action remedy the matter. I would do this quickly as he may take action to try and have ether account handed over to him, which could potentially jeopardise you're business and income.
I shall provide you with a helpful link that will assist you in finding a solicitor/representative near your local area. This will provide you with someone nearby your area who can assist you if required.
I hope this information proved helpful. You will find a local solicitor who deals with these matters on the law society webpage which is as follows;
Hopefully, I have answered your query in a way that is simple and easy to understand. If anything remains unclear, I will be more than happy to clarify it for you. In the meantime, thank you once again for using our services.
Should you require any further assistance on this matter, please do not hesitate to post a further questions for additional assistance.