Storage of Energy by Batteries or Other Storage Solutions/Recycling of Batteries

May 2017, backstage information: Storage is also a problem of definition. How is it defined? As with 15 July 2017 was not able to do more research.

Furhermore: Without storage to get energy from or to store energy to most of the renewable energy sources would not be usable. It is a simple expectation only that energy storage will be a major business in the years to come. Technically there are several ways of storing energy, besides the most obvious way: Batteries. There is much research done in the area of batteries and chemicals, most of it focused on the needs for electric driving and smart phones/tablets/laptops. The requirements for energy storage for the grid differ in one utmost point, that is the size and weight, which is not really important. If a storage system is bigger and heavier while cheaper or more reliable, than it is the one chosen. Besides LiIon (LithiumIons) there are redox batteries ore even old style lead acid batteries (seldom), a different example is LiFePo/Lithium Iron Phosphate. Storage without Lithium of course is possible, there are already pilot projects, please read our other information under batteries or storage etc.. If now in the laboratory, very soon the new batteries might be implemented.  As to me it is often very important, if the university to develop is an elite university or not! However this does not count in leadership of GLs of big groups!!! And we have a lot of scientists who submit scientific projects, thus here it is very important that those who select have a great experience and knowledge.
Other ways for energy storage include water pump systems where water is pumped uphill to store energy and downhill to get the energy back. There are similar approaches with more or less complete hills discussed in research, but not yet implemented.
Also there are pilot projects (AUDI) using the energy from wind or solar to create LPG/natural gaz or similar over several steps and store it in the grid. LPG/natural gas is available at gas stations for e-vehicles. However as with July 2017 was not able to do more research.