A novel aqueous dual-ion battery using concentrated bisalt electrolyte

Advanced High-Voltage Aqueous Lithium-Ion Battery Enabled by "Water-in-Bisalt" Electrolyte.

A new super-concentrated aqueous electrolyte is proposed by introducing a second lithium salt. The resultant ultra-high concentration of 28 m led to more effective formation of a protective interphase on the anode along with further suppression of water activities at both anode and cathode surfaces. The improved electrochemical stability allows the use of TiO2 as the anode material, and a 2.5 V...

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...

Multicomponent Concentrated Aqueous Electrolyte Solutions

An Aqueous Ca‐Ion Battery

Multivalent-ion batteries are emerging as low-cost, high energy density, and safe alternatives to Li-ion batteries but are challenged by slow cation diffusion in electrode materials due to the high polarization strength of Mg- and Al-ions. In contrast, Ca-ion has a low polarization strength similar to that of Li-ion, therefore a Ca-ion battery will share the advantages while avoiding the kineti...

“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...