Themed collection Energy Advances: Highlight Japan & South Korea

This perspective highlights progress in the development of cathode materials for potassium-ion batteries, whilst providing valuable insights into unexplored compositional spaces that can be pursued for high-performance electrode materials.

This review introduces organic ionic plastic crystals (OIPCs) as Li-ion conductors and recent progress in the development of Li secondary batteries with OIPC-based solid electrolytes.

This review summarizes the superiorities and utilizations of 2D materials for photoelectrochemical water splitting including transition metal dichalcogenides, graphene, graphdiyne, black phosphorus, layered double hydroxides, g-C₃N₄, and MXenes.

Machine learning analysis revealed the importance of structural features involving A-site metals in AxByOz multimetal oxides for their OER activity.

High-capacity electrode materials made of abundant elements are necessary to develop cost-effective energy storage applications.

Highly concentrated electrolytes (HCEs) have attracted great interest as electrolyte candidates for Li metal batteries because of their functionalities in improving the reversibility and cycling performance of the Li metal negative electrode.

A free-standing film of graphene oxide and oxidized single-wall carbon nanotubes showing efficient mixed proton and electron conduction at room temperature is demonstrated.

Acetic acid from fast pyrolysis-derived bio-oils was removed by Friedel–Crafts acylation reactions, generating acetophenones, which possess more than eight carbons and could be converted to valuable components of fuels.

Phosphotungstic acid (H₃PW₁₂O₄₀) can function as a surface solid electrolyte for porous WO₃ photoanode in gas-phase photoelectrochemical reactions such as water vapour splitting and methane conversion in the absence of liquid electrolytes.

Composite electrodes were prepared by impregnating both sulphur and solid electrolyte solutions into the interior of the porous carbon and drying them, and the composites were applied to all solid-state lithium-sulphur batteries.

Negative synergistic effect of a combination of float charging and occasional discharging.

Operation of 500 W h kg⁻¹ class rechargeable batteries was demonstrated. Non-destructive XCT analysis revealed volume expansion of the lithium metal electrode as the primary reason for the capacity fading.

This research article reports on a systematic approach to the development of polymer gel electrolytes (PGEs) for the applications of dye-sensitized solar cells (DSSCs).

A P–N heterostructure composed of CuGaO₂ and GaN shows outstanding photocatalytic water splitting.

An efficient oxygen evolution reaction (OER) catalyst has been reported from rGO anchored NiCo-LDH nanosheets.

The photocatalytic hydrogen-evolution activity of hydrophilic Pt nanocluster-loaded SrTiO₃:Rh was improved to 30% compared to that prepared by the conventional method.

We report a chlorine-substituted polythiophene-based, dioxobenzodithiophene-containing conjugated polymer (P2T-Cl) as a promising dopant-free hole transport material in lead halide perovskite solar cells.

A capacity prediction model for organic anode active materials was constructed using sparse modeling for small data. The new model was validated in terms of the prediction accuracy, validity of the descriptors, and amount of the training data.

The effects of B doping and its impurity concentration (1600, 4700, and 12400 ppm) on the electrochemical lithiation/delithiation of Si were examined using single crystals synthesized by the Czochralski method.

A photo-assisted electrochemical system converting CO₂ into formic acid by photoelectrochemical water oxidation at TiO₂ nanotubes coupled with electrochemical CO₂ reduction at boron-doped diamond.

Generation of electricity from naturally abandoned mechanical vibrations is of utmost importance in the modern era of the internet of things.

M₃(hexahydroxytriphenylene)₂ (M = Ni, Co, Cu; hexahydroxytriphenylene (HHTP)) was uniformly coated onto BiVO₄ thin films via a facile solvothermal process, and the photoelectrochemical performance of the BiVO₄/M₃(HHTP)₂ photoanodes was investigated.