Ternary layered double hydroxide cathode materials for electrochemical energy storage: a review and perspective

Abstract

The demand for electrochemical energy storage (EES) with high energy density is increasing with the rapid development of society. Among them, ternary layered double hydroxides (LDHs) have attracted much attention...

Exchanging interlayer anions in NiFe-LDHs nanosphere enables superior battery-type storage for high-rate aqueous hybrid supercapacitors

“…29,30 Further, enlarging the interlayer spacing promotes ion intercalation and the electrochemical reaction kinetics via improving the redox activities, as well as ion accommodation inside the electrodes. 31,32 The interlayer spacing of LDHs can be enlarged by introducing macromolecules or organic molecules, such as aniline and sodium dodecyl benzene sulfonate (SDBS). [33][34][35] Additionally, the interlayer of the LDH structure also can be tuned by varying the concentration of the metallic ratio, temperature, and reaction time during the preparation.…”

A SnO2/MXene hybrid nanocomposite as a negative electrode material for asymmetric supercapacitors

“…[1][2][3][4][5][6][7][8][9] The electroactive material is one of the vital components to have enhanced supercapacitor behaviour in terms of achieving high specic capacitance and long cycling stability. [10][11][12][13][14] Despite being common electrode materials for supercapacitors, carbon-based materials' utility is limited in some applications due to their poor specic capacitance and energy density. Combining pseudocapacitive metal oxides, such as RuO 2 , MnO 2 , NiO, Co 3 O 4 , Fe 2 O 3 , and SnO 2 , with carbon can increase its specic capacitance.…”

“…1–9 The electroactive material is one of the vital components to have enhanced supercapacitor behaviour in terms of achieving high specific capacitance and long cycling stability. 10–14…”