Energy and environmental pollution have become two major problems in today's society.
It is urgent to develop green energy storage devices with good safety, high reliability, high energy density and low cost.
Here, we report lithium-ion batteries using aqueous electrolyte solutions.
It is constructed with graphite coated with a gel polymer film and LISICON as the negative electrode, using lithium ion batteries in aqueous solution as the positive electrode.
The average discharge voltage is as high as 3.
The 1 v and energy density based on these two electrode materials are 258wh wh kg-1.
With good safety and efficient cooling effect, it is a promising energy storage system.