First of all why you want to learn electrochemistry! As per my opinion you need make your self at Process calculation. It’s gives you an appropriate solution for your Energy/mass balance problem. For that you no need to learn whole course of electrochemistry. And then you still found problem with. Then use your Thermodynamics skill. Remember the thing, you’re chemical engineering not chemist. Don’t struggle with the concept which is out of your field. Simply hire one BSc/MSc guy for that. Then collect his examination data of any running problem in industry. Now you comes in Picture. Use your brain now! Apply your skill thermodynamics, process calculation and instrumentation and process control. And you had MTech, you know better these things! In short don’t do anything which ChemE has no need to do. Use your time and skills for doing something really worthy for the tag Chemical Engineer. There are thousands of problem regarding chemical reaction engineering which is heart of Chemical engineering. Try to develop something in that it, definitely gives you a better prospect and carrier growing options!