Well, from http://ec.europa.eu/research/energy/nn/nn_rt/nn_rt_st/article_1157_en.htm:

"During the past few years over €30 million has been allocated to more than 20 projects in the field of energy storage."

I could not get the link to work. Even 30 million Euros is a drop in the bucket for research purposes. They need to invest 3 billion to get anywhere on bringing energy storage into production.