How to change a list URL via JSOM?

I'm trying to make a JSOM utility that will allow me to alter the properties of pre-existing document libraries. So far I have successfully managed to update the list 'Title' and 'Description' properties.

The bit I am stuck on is how can I update the URL for the list to a value of my choosing?

I have had a look already at this MSDN advice on the List Object. There are no pre-existing methods that I can use to update the URL.

Is there a way of doing this in JSOM in SharePoint or have I hit a dead end? Any help would be very much appreciated.

My code so far is as follows:

       // Get the current context
       var context = new SP.ClientContext.get_current(); 
       // Get the current site (SPWeb) 
       var web = context.get_web(); 
       // Get the library 
       var list = web.get_lists().getByTitle(ExDocLibName);

       //Update some properties of the library
       list.set_description('Updated Library description')
       list.set_title(NewDocLibName)
       list.update();

       context.load(list)

       // Create callback handlers
       var success = Function.createDelegate(this, this.onSuccess); 
       var failure = Function.createDelegate(this, this.onFailure); 

       // Execute an async query
       context.executeQueryAsync(success,failure);

            }
        // Async query succeeded.
        function onSuccess(sender, args) {

        alert('library details have been updated');

        // Refresh the page.
        SP.UI.ModalDialog.RefreshPage(SP.UI.DialogResult.OK);
        }

        // Async query failed.
        function onFailure(sender, args) {
        alert(args.get_message());
        }