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A Review on Laser-Induced Graphene-Based Electrocatalysts for the Oxygen Reduction Reaction in Electrochemical Energy Storage and Conversion
Published on 2025-07-10 by Giulia Massaglia, Marzia Quaglio @MDPI
Abstract: The increasing demand for efficient and sustainable energy conversion technologies has driven extensive research into alternative electrocatalysts for the oxygen reduction reaction (ORR). Platinum-based catalysts, while highly efficient, suffer from high costs, scarcity, and long-term instability Laser-Induced Graphene (LIG) has recently attracted considerable interest as an effective metal-free electrocatalyst for oxygen reduction reaction (ORR), owing to its remarkable electrical conductivity,[...]
Our summary: A review on the synthesis, properties, and performance of Laser-Induced Graphene-based electrocatalysts for the oxygen reduction reaction. Discussion on heteroatom doping and functionalization techniques. Highlighting challenges and future perspectives for LIG-based ORR catalysts.
Laser-Induced Graphene, Electrocatalysts, Oxygen Reduction Reaction, Energy Storage
Publication
Types, Synthesis, and Recent Advances in Supercapacitor Applications
Published on 2025-07-04 by Zhiwei Gao, Donghu Shi, Jiawei Xu, Te Hai, Yao Zhao, Meng Qin, Jian Li @MDPI
Abstract: Since the discovery of two-dimensional transition metal carbides and nitrides (MXenes), MXenes have attracted widespread research in the academic community due to their advantages, such as adjustable interlayer spacing, excellent hydrophilicity, conductivity, compositional diversity, and rich surface chemical composition. More than 100 different MXene combinations can be calculated theoretically, but only more than 40 have been successfully synthesized through experiments. Among the many synthes[...]
Our summary: Types, Synthesis, and Recent Advances in Supercapacitor Applications. MXenes, including vanadium-based carbide MXenes, have adjustable interlayer spacing, excellent hydrophilicity, and rich surface chemical composition. Over 40 MXene combinations have been successfully synthesized, with vanadium-based carbide MXenes showing promising energy storage applications.
Supercapacitors, MXenes, Synthesis, Applications
Publication
Carbon material for supercapacitor electrode and method for producing same
Patent published on the 2025-03-06 in WO under Ref WO2025048375 by JB EST CO LTD [KR] (Lee Yongwook [kr], Park Doo Young [kr])
Abstract: An embodiment of the present invention provides: a carbon material for a supercapacitor electrode, the carbon material having a plurality of pores, wherein the pore volume of pores having a pore diameter of at most 17 Å among the plurality of pores is at most 30% of the total pore volume; a supercapacitor electrode including same; and a supercapacitor.[...]
Our summary: Carbon material with specific pore volume for supercapacitor electrode production, including electrode and supercapacitor.
carbon material, supercapacitor electrode, pores, method
Patent
Composite for super capacitor electrode, super capacitor electrode comprising same, and super capacitor
Patent published on the 2025-03-06 in WO under Ref WO2025048376 by JB EST CO LTD [KR] (Lee Yongwook [kr], Park Doo Young [kr])
Abstract: One embodiment of the present invention provides a carbon material-activated carbon composite, a super capacitor electrode comprising same, and a super capacitor, the composite comprising activated carbon and a carbon material in which the pore volume of pores having pore diameters of 17Å or less is 30% or less on the basis of the total pore volume.[...]
Our summary: A carbon material-activated carbon composite for super capacitor electrode, comprising pores with diameters of 17Å or less up to 30% of total pore volume, used in a super capacitor.
Composite, super capacitor electrode, activated carbon, pore volume
Patent
Method for manufacturing electrode for supercapacitor
Patent published on the 2025-03-06 in WO under Ref WO2025048377 by JB EST CO LTD [KR] (Lee Yongwook [kr], Park Doo Young [kr])
Abstract: The present invention provides, in one embodiment, a method for manufacturing an electrode for a supercapacitor, comprising the steps of: preparing, in a slurry state, an electrode composition containing a carbon material; drying the electrode composition so as to form an electrode solid, pulverizing the electrode solid, and then vacuum drying same, thereby preparing an electrode composite; pressing the electrode composite, thereby forming an electrode composite film; and arranging the electrode[...]
Our summary: Method for manufacturing electrode for supercapacitor, preparation of electrode composition in slurry state, drying and pulverizing to form electrode solid, pressing to form electrode composite film, arranging on current collector and pressing.
manufacturing, electrode, supercapacitor, method
Patent
Design and Experimental Validation of a Battery/Supercapacitor Hybrid Energy Storage System Based on an Adaptive LQG Controller
Published on 2024-12-25 by Jhoan Alejandro Montenegro-Oviedo, Carlos Andres Ramos-Paja, Martha Lucia Orozco-Gutierrez, Edinson Franco-Mej�a, Sergio Ignacio Serna-Garc�s @MDPI
Abstract: Hybrid energy storage systems (HESSs) are essential for adopting sustainable energy sources. HESSs combine complementary storage technologies, such as batteries and supercapacitors, to optimize efficiency, grid stability, and demand management. This work proposes a semi-active HESS formed by a battery connected to the DC bus and a supercapacitor managed by a Sepic/Zeta converter, which has the aim of avoiding high-frequency variations in the battery current on any operation condition. The conver[...]
Our summary: Sustainable energy sources require efficient hybrid energy storage systems. This work introduces a semi-active HESS with an adaptive LQG controller that outperforms traditional PI and LQG controllers. The proposed system optimizes grid stability by efficiently managing high and low-frequency components of battery power. Experimentally validated control strategy ensures system adaptability to changing operating conditions.
hybrid energy storage systems, adaptive LQG controller, battery, supercapacitor, Sepic/Zeta converter, optimal state observer, control strategy
Publication
