518 Inter-seasonal compressed-air energy storage using saline aquifers.

517 Energy harvesting near room temperature using a thermomagnetic generator with a pretzel-like magnetic flux topology.

516 Rechargeable aluminium organic batteries.

515 Three-dimensional piezoelectric polymer microsystems for vibrational energy harvesting, robotic interfaces and biomedical implants.

514 Fine-tuned gel particles enable smart windows for energy efficiency.

513 The bright side of photovoltaics production in snow-covered mountains.

512 Ultralow-loading platinum-cobalt fuel cell catalysts derived from imidazolate frameworks.

511 Reversible superdense ordering of lithium between two graphene sheets.

510 Room-temperature cycling of metal fluoride electrodes: Liquid electrolytes for high-energy fluoride ion cells.

509 Nickel-hydrogen batteries for large-scale energy storage.

508 Suppressing corrosion in primary aluminum–air batteries via oil displacement.

507 Capsule Triboelectric Nanogenerators: Toward Optional 3D Integration for High Output and Efficient Energy Harvesting from Broadband-Amplitude Vibrations.

506 Unique ion rectification in hypersaline environment: A high-performance and sustainable power generator system.

505 Bioinspired Electrocatalysis of Oxygen Reduction Reaction in Fuel Cells Using Molecular Catalysts.

504 Heat-Insulating Multifunctional Semitransparent Polymer Solar Cells.

503 A Superionic Conductive, Electrochemically Stable Dual-Salt Polymer Electrolyte.

502 Stretchable Lithium Metal Anode with Improved Mechanical and Electrochemical Cycling Stability.

501 Alkaline Quinone Flow Battery with Long Lifetime at pH 12.

500 Lithium Metal Extraction from Seawater.

499 An intermediate temperature garnet-type solid electrolyte-based molten lithium battery for grid energy storage.

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