Electrochemical Energy Storage in Perovskite-Based Supercapacitors

Perovskite oxides, characterised by the general formula ABO₃, have emerged as versatile electrode materials for supercapacitors, bridging the gap between batteries and conventional electrostatic capacitors. Their intrinsic redox activity, tunable composition and robust thermal stability permit both electric double-layer and pseudocapacitive charge storage. At the A‐site and B‐site sublattices, cationic substitution generates controlled oxygen vacancies and optimises electronic conductivity, while nanostructuring and composite formation with carbonaceous frameworks enhance ion accessibility and surface area. These properties together deliver high power density, rapid charge–discharge capability and improved cycling stability. The global push towards renewable integration and portable electronics has driven research into perovskite‐based supercapacitors for grid buffering, wearable devices and hybrid electric vehicles. Recent advances have focused on rational doping strategies, lattice‐engineered defects and hybrid architectures to overcome issues of conductivity and long‐term degradation, while flexible and printable devices reveal their promise for next‐generation energy storage.

Research from Nature Portfolio

Recent studies have demonstrated that perovskite–carbon composites can achieve exceptional cycling stability and capacitance retention by exploiting lattice oxygen activity. In one work, a Sr‐ and Co‐doped lanthanum manganite perovskite was combined with graphene nanoplatelets to create electrodes with a tailored level of structural distortion. The optimised composite maintained over 95 % of its initial capacitance after 5 000 cycles, attributing its resilience to enhanced oxygen adsorption and reversible redox at the B‐site metal centres. Such findings highlight the critical role of perovskite defect chemistry and interfacial design in realising durable supercapacitor electrodes.

Electrochemical Energy Storage in Perovskite-Based Supercapacitors publication trend

The graph below shows the total number of articles in electrochemical energy storage in perovskite-based supercapacitors across all publications each year (not limited to Nature Index journals).

Technical terms

Perovskite structure: A crystal lattice of formula ABO₃, where A and B are cations of differing sizes, enabling flexible substitution and defect engineering.

Specific capacitance: The capacitance per unit mass or area of an electrode, indicating its energy‐storage capacity.

Oxygen vacancy: A missing oxygen ion in the lattice that enhances electronic conductivity and provides active sites for redox reactions.

Pseudocapacitance: Charge storage arising from fast, reversible Faradaic reactions at or near the electrode surface, distinct from purely electrostatic storage.

Electric double layer: A non‐Faradaic charge separation at the electrode–electrolyte interface, contributing to rapid energy uptake and release.

References

1. Structurally distorted perovskite La0.8Sr0.2Mn0.5Co0.5O3-δ by graphene nanoplatelet and their composite for supercapacitors with enhanced stability. Scientific Reports (2022).
2. Electrochemical energy storing performances of printed LaFeO3 coated with PEDOT: PSS for hybrid supercapacitors. Chemical Engineering Journal (2025).
3. Electrochemical Properties of LaMO3(M=Cr, Mn, and Co) Perovskite Materials. Coatings (2024).