A 62 m K-ion aqueous electrolyte

A lithium ion battery using an aqueous electrolyte solution

Energy and environmental pollution have become the two major problems in today's society. The development of green energy storage devices with good safety, high reliability, high energy density and low cost are urgently demanded. Here we report on a lithium ion battery using an aqueous electrolyte solution. It is built up by using graphite coated with gel polymer membrane and LISICON as the neg...

Nanometer-scale ion aggregates in aqueous electrolyte solutions: guanidinium carbonate.

Neutron diffraction with isotopic substitution (NDIS) experiments and molecular dynamics (MD) simulations have been used to characterize the structure of aqueous guanidinium carbonate (Gdm2CO3) solutions. The MD simulations found very strong hetero-ion pairing in Gdm2CO3 solution and were used to determine the best structural experiment to demonstrate this ion pairing. The NDIS experiments conf...

Multicomponent Concentrated Aqueous Electrolyte Solutions

“Water-in-Salt” Electrolyte Makes Aqueous Sodium-Ion Battery Safe, Green, and Long-Lasting

DOI: 10.1002/aenm.201701189 the availability issue of lithium as a natural source, along with potential safety and environmental risks brought by the inflammable and toxic nonaqueous electrolytes. In contrast, sodium (Na) is highly abundant and readily accessible in both earth-crust and ocean. An aqueous Na-ion batteries would be far more economically competitive than LIBs for large-format appl...

"Water-in-salt" electrolyte enables high-voltage aqueous lithium-ion chemistries.

Lithium-ion batteries raise safety, environmental, and cost concerns, which mostly arise from their nonaqueous electrolytes. The use of aqueous alternatives is limited by their narrow electrochemical stability window (1.23 volts), which sets an intrinsic limit on the practical voltage and energy output. We report a highly concentrated aqueous electrolyte whose window was expanded to ~3.0 volts ...