yes, they are a great way to personify simple objects or to make a complex machinery tell its internal working in the simplest way to the learners.
An animator can enter where a camera cannot. When you have to explain internal working of a complex machinery like a boiler or if you have to explain a chemical process on molecular level, animations are your best bet.
Even when you have to highlight the importance of personal safety to your audience – what can be better than a short animation which they would remember forever? And yes, we have an entire series of such animations which we created for our clients.
Animations can be used very effectively to narrate a story. Ask the solar panel company for whom we developed the entire life story of solar power. A tale, a learner will never forget.