Advanced superionic conductor

History

The term was introduced in a paper by A.L. Despotuli, A.V. Andreeva and B. Rambaby.{{cite journal

Characteristics

The rigid ion sublattice of Advanced SuperIonic Conductors (AdSICs) has structure channels where mobile ions of opposite sign migrate. Their ion-transport characteristics display ionic conductivity of ~0.3/Ω cm (RbAg4I5, 300 K) and activation energy of Ei~0.1 eV. This determines the temperature-dependent concentration of mobile ions ni~Ni x eEi/kBT capable to migrate in conduction channels at each moment (Ni~1022/cm3, ni~2x1020/cm3, 300 K).

The Rubidium silver iodide–family is a group of AdSIC compounds and solid solutions that are isostructural with the RbAg4I5 alpha modification. Examples of such compounds with mobile Ag+- and Cu+-cations include KAg4I5, NH4Ag4I5, K1−xCsxAg4I5, Rb1−xCsxAg4I5, CsAg4Br1−xI2+x, CsAg4ClBr2I2, CsAg4Cl3I2, RbCu4Cl3I2 and KCu4I5.

RbAg4I5 AdSIC displays peculiar features of crystal structure and dynamics of mobile ions.

Recently, all solid state micrometre-sized supercapacitors based on AdSICs (nanoionic supercapacitors) had been recognized as critical electron component of future sub-voltage and deep-sub-voltage nanoelectronics and related technologies (22 nm technological node of CMOS and beyond).{{cite journal | script-title=ru:Высокоёмкие конденсаторы для 0,5 вольтовой наноэлектроники будущего | access-date = 2007-11-02

References

References

1. Geller, S.. (1967-07-21). "Crystal Structure of the Solid Electrolyte, RbAg₄I₅". Science.
2. Geller, S.. (1979-01-01). "Crystal structure and conductivity of the solid electrolyte". Physical Review B.
3. (2002). "Crystal Structures and Ionic Conductivities of Ternary Derivatives of the Silver and Copper Monohalides". Journal of Solid State Chemistry.
4. (1989-01-01). "Ionic conductivity of solid electrolytes in two- and three-component glass forming systems AgX-CsX (X=Cl, Br, I)". Ehlektrokhimiya.
5. (2009-12-01). "Temperature variation of electrical conductivity and absorption edge in Cu7GeSe5I advanced superionic conductor". Journal of Physics and Chemistry of Solids.
6. (1989). "New high conductive CsAg4Br1−xI2+x (0.25 < x <1) solid electrolytes". Soviet Physics - Solid State.
7. (2006-03-01). "Low-Temperature Phases of Rubidium Silver Iodide: Crystal Structures and Dynamics of the Mobile Silver Ions". The Journal of Physical Chemistry A.
8. (2008-10-01). "Hyperbolic Cation Diffusion Paths in α-RbAg₄I₅ Type Superionic Conductors". Zeitschrift für Anorganische und Allgemeine Chemie.
9. (20 September 2020). "Effect of relative humidity on the reaction kinetics in rubidium silver iodide based all-solid-state battery". Electrochimica Acta.
10. (September 2021). "Greatly enhanced energy density of all‐solid‐state rechargeable battery operating in high humidity environments". International Journal of Energy Research.