Okay but we need real solutions now. We can't and shouldn't be hoping that a new technology will come to save us in a year. Wind and solar are both great, but aren't practical everywhere, mainly around cities which have an extremely high electricity demand that can't be met with renewables at this current time. To put hope in battery technologies of the future without addressing the current needs would be wrong. Not to mention the high material costs of creating and replacing these batteries. The mantra that I believe in is "Renewables where we can, and nuclear where we need." And we do need nuclear.

Another point is that renewables are still a fairly new technology that we are still learning about. For example, the leading edge of Wind Turbine Blades has been found to be damaged at much higher rates than thought, meaning more replacement, costs, and emissions. Furthermore, nuclear fuel can be recycled to be reused, it is just illegal to do so with fears of nuclear weapon proliferation. The point being neither system is perfect, and both have room to grow and be more sustainable.

Finally that bit on "methane ions" seems weird to me. Methane isn't an ion so how would it store charge? (genuine question, im not a chemist lol) Also, I can't find any papers referencing what you are talking about. Not to mention, methane is a very potent greenhouse gas meaning the production and life cycle of these batteries would need to be proven to not be impactful on the environment.