When a new batch is created, the status will be "New". If the status of your batch is "New", it has not yet been submitted.
Once you have added in your debit/credit lines and are ready to submit the batch for approval, click the blue "Submit" button or click on the three vertical dots action button and select "Submit". 
If the button is greyed out and you are not able to submit, check the following:
- Total debits must equal total credits
- Account information must have been completed
- Check there are no filters applied so you can view the whole batch