Nano silica gel battery technology

Can silica-gel solid nanocomposite electrolyte be used in solid-state lithium and Li-ion batteries?

We have demonstrated a high-rate performance in solid-state lithium and Li-ion batteries using a silica-gel solid nanocomposite electrolyte of a FSI-based ionic liquid and Li-salt.

What is a silica gel?

The extremely high porosity of the silica matrix (70 to 90%) gives these nanocomposite electrolyte materials a gel-like consistency and thus making them mechanically compliant similar to polymer electrolytes. These silica gels are sometimes indicated as hybrid solid electrolytes, as they contain a liquid.

Are bayberry-like silica nanoparticles microporous?

In summary, the bayberry-like silica nanoparticles with microporous structure have been synthesized by the Stőber method and a novel composite gel polymer electrolyte separator has been prepared. The separator has unmatched thermal stability, ion conductivity and high lithium-ion migration.

What are the advantages of thermal conductive silica gel?

By condensation reaction of moisture in the air, thermal conductive silica gel can achieve low molecular release, initiate crosslinking and curing 15, and form high-performance elastomers. The thermal conductive silica gel not only has high and low-temperature resistance, but also has the advantages of aging resistance, electrical insulation, etc.

Do silica nanocomposites become solid-like?

However, for the silica nanocomposites, as those described in this paper, the ionic “liquid” electrolyte becomes solid-like when confined in the tens of nanometer-sized channels both by the increase in viscosity and by the adsorption on the silica wall confining the channel.

How is silica gel dispersed in a composite electrolyte?

The silica gel suspension was transferred to the PVDF-HFP solution and magnetically stirred at 40 °C for 30 min to ensure uniform dispersion. The mass fractions of doped silica in the composite electrolyte were 5 wt%, 10 wt%, 15 wt% and 20 wt%, respectively.