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Artificial intelligence for anaerobic digestion: advancing sustainable biogas production

Energy Adv., 2026, Advance Article
DOI: 10.1039/D6YA00053C, Review Article

Open Access

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Meicai Xu, Carter Monson, Josue Kpodo, Fei Long, Hong Liu, Yan Liu, Wei Liao
Artificial intelligence enables advanced prediction, optimization, and monitoring in anaerobic digestion, while challenges in data quality, explainability, and interdisciplinary integration remain critical for future development.
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A 3D electrochemical-thermal coupled model for pouch-type lithium-ion batteries with counter-tab configuration

Energy Adv., 2026, Advance Article
DOI: 10.1039/D6YA00018E, Paper

Open Access

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.

Oscar A. Alvarez, Carlos M. Da Silva, Cristina H. Amon
Lithium-ion batteries (LIBs) are the dominant energy source for electric vehicles (EVs) and battery energy storage systems (BESS) owing to their superior performance compared to other storage technologies.
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Scalable fabrication and electrochemical characterization of binder-free Fe3O4@C films on a Cu current collector

Energy Adv., 2026, Advance Article
DOI: 10.1039/D6YA00012F, Paper

Open Access

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Hameed Ullah, Seyedhossein Mortazavi, Assegid Mengistu Flatae, Asad Muhammad Khan, Xin Jiang
Binder-free Fe₃O₄@C films were fabricated directly on the current collector by adopting a scalable strategy. The improved electrochemical performance exhibited by these nanoarchitectures emphasizes their potential as anodes in energy storage devices.
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Engineering Al/Fe dual-doped nanoporous ZnO nanorods for efficient visible-light-driven photoelectrochemical hydrogen evolution

Energy Adv., 2026, Advance Article
DOI: 10.1039/D5YA00362H, Paper

Open Access

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Mustafa Majid Rashak Al-Fartoos, Asif Ali Tahir, Martin Smith
Al/Fe dual-doped nanoporous ZnO nanorods enable enhanced visible-light-driven photoelectrochemical hydrogen evolution through improved charge separation and surface reactivity.
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A review on mitigating thermal runaway propagation in battery packs: from mechanisms to modeling and design optimization

Energy Adv., 2026, 5,777-809
DOI: 10.1039/D5YA00351B, Review Article

Open Access

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.

Yiyue Jiang, Yuan Jiang, Pingfeng Wang
We unify mechanisms, modelling and optimization to mitigate thermal runaway propagation in next-generation high-energy lithium-ion packs.
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Solid-state prealkylation of electrode architectures to tune solid electrolyte interphase composition

Energy Adv., 2026, 5,866-876
DOI: 10.1039/D6YA00065G, Paper

Open Access

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.

Amanda L. Musgrove, Ankit Verma, Marco-Tulio F. Rodrigues, Evelyna Wang, Baris Key, Anton Grabo-Tomich, Christopher S. Johnson, Robert L. Sacci, Steven Lam, Harry M. Meyer, Andrew M. Colclasure, Beth L. Armstrong, Gabriel M. Veith
Efficient electrochemical cycling of certain Si anodes is limited by irreversible Li consumption to form and continually reform the solid electrolyte interface (SEI) due to Si expansion/contraction and fracture.
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Lithium-ion uptake on lithium manganese oxide soft and bare electrodes

Energy Adv., 2026, 5,877-888
DOI: 10.1039/D6YA00009F, Paper

Open Access

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.

S. Orozco-Barrera, J. A. Lirio Piñar, C. Kök, G. R. Iglesias, A. V. Delgado, V. Presser, S. Ahualli
Lithium manganese oxide electrodes enable voltage-controlled Li⁺ ion uptake from LiCl/NaCl solutions, while PSS coating modifies Na⁺/Li⁺ release and improves operational selectivity.
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Tailoring MMn2O4 spinels anchored on nitrogen-doped reduced graphene oxide for high performance bifunctional water splitting

Energy Adv., 2026, 5,824-834
DOI: 10.1039/D6YA00052E, Paper

Open Access

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.

Madakannu Iyyappan, Ayyavu Shankar, Govindan Maduraiveeran, K. K. R. Datta
FeMn₂O₄@N–rGO heterostructures exhibit enhanced bifunctional alkaline water splitting due to the synergistic Fe–Mn redox coupling and conductive N-doped reduced graphene oxide.
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Aqueous polypyrrole : carboxymethyl cellulose conducting binder for graphite electrodes in lithium-ion batteries

Energy Adv., 2026, 5,846-854
DOI: 10.1039/D6YA00042H, Paper

Open Access

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Anh Ngoc Tram Mai, Christian Kuss
Polypyrrole:carboxymethyl cellulose, a sustainable and conducting battery electrode binder, maintains its chemical identity, even in lithium intercalation negative electrodes.
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Hydrogen systems for a circular and low-carbon economy

Energy Adv., 2026, 5,775-776
DOI: 10.1039/D6YA90008A, Editorial

Open Access

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.

Kentaro Umeki, Sebastian Fendt
Kentaro Umeki and Sebastian Fendt introduce the Energy Advances themed collection on ‘Hydrogen systems for a circular and low-carbon economy’.
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Carbon-coated niobium tungsten oxides as new and efficient anode materials for Na-ion batteries

Energy Adv., 2026, 5,855-865
DOI: 10.1039/D5YA00374A, Paper

Open Access

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Y. Bhaskara Rao, Katta Vamsi Krishna, C. André Ohlin
TTB-type, niobium tungstates, Nb₁₈W₁₆O₉₃(NWO) and Nb₇W₁₀O₄₇(WNO), are presented as new anode materials for SIBs. NWO showed a reversible capacity of 163.95 mA h g⁻¹ at 10 mA g⁻¹, and WNO delivered a high capacity retention of 81% over 420 cycles.
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A novel vanadium–titanium redox flow battery with a mixed electrolyte approach

Energy Adv., 2026, 5,835-845
DOI: 10.1039/D6YA00067C, Paper

Open Access

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.

Chivukula Kalyan Sundar Krishna, Yansong Zhao
A novel pre-mixed electrolyte strategy for vanadium–titanium redox flow batteries that mitigates crossover of redox species, while enhancing electrochemical stability, and retaining high coulombic efficiency.
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Microporous carbon enhanced by structural modifications to suppress polysulfide shuttling and reduce capacity fading in lithium–sulfur batteries

Energy Adv., 2026, 5,810-823
DOI: 10.1039/D6YA00026F, Paper

Open Access

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Delvina Japhet Tarimo, Francisco J. García-Soriano, Alen Vizintin, Christian Prehal, Elena Tchernychova, Volker Presser
Using nickel sulfate, AC900S was modified to AC900S-Ni without metallic Ni deposition. Instead, carbon graphitization increased (higher sp² fraction), improving conductivity, polysulfide anchoring, charge-transfer kinetics, and cycling stability.
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Outstanding Reviewers for Energy Advances in 2025

Energy Adv., 2026, Advance Article
DOI: 10.1039/D6YA90022D, Editorial

Open Access

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.

We would like to take this opportunity to highlight the Outstanding Reviewers for Energy Advances in 2025, as selected by the editorial team for their significant contribution to the journal.
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Valorisation of wastewater sludge into activated carbon via H3PO4 activation for supercapacitor applications

Energy Adv., 2026, Advance Article
DOI: 10.1039/D6YA00064A, Paper

Open Access

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.

Mojeed O. Bello, Ntuthuko W. Hlongwa, Abolanle S. Adekunle, Moshawe J. Madito
Activated carbon derived from wastewater sludge by single-step carbonisation via H₃PO₄ activation used in a supercapacitor exhibits good energy storage and stability, owing to the nature of the sludge, the activation process, and the electrolyte.
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One-pot synthesis for doping and coating NMC 811 with B, Al, and Nb for enhanced stability

Energy Adv., 2026, Advance Article
DOI: 10.1039/D5YA00314H, Paper

Open Access

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Rex Chen, Vahid Moradi, Lida Hadidi, Byron D. Gates
Schematic of a one-pot M2CAM^® synthesis for multi-element doped and coated NMC 811, where elemental metal powders and dopant precursors are combined in a single reactor and thermally treated to yield the final crystalline cathode active material.
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Natural stabilizer-assisted sol–gel synthesis of medium-entropy spinel ferrites: structural and electrochemical insights for supercapacitor applications

Energy Adv., 2026, Advance Article
DOI: 10.1039/D5YA00340G, Paper

Open Access

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Y. Ranjith Kumar, Kasarapu Venkataramana, M. Vasundhara
Medium-entropy spinel ferrite (MnCoNiZn)Fe₂O₄ was synthesized through an eco-friendly albumen-assisted sol-gel route using albumen. The material exhibited a high specific capacitance of 408.18 F g⁻¹ at 4 F g⁻¹ in 2M KOH electrolyte.
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Comparison of two approaches for discharging LiFePO4 EV battery packs and comprehensive analysis of recovered cathodes for direct recycling purposes

Energy Adv., 2026, Advance Article
DOI: 10.1039/D6YA00039H, Paper

Open Access

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Simon Duda, Deise F. Barbosa de Mattos, Laura Altenschmidt, Fredrik Lindgren, Lars-Erik Ohlsson, Martina Petranikova
Resistor discharge yields a higher lithiated cathode material with less Cu and Al impurities. Brine discharge leads to corrosion, wastewater generation and increased impurities; hence, it was deemed less advantageous for direct recycling purposes.
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Effects of operating temperature on kinetics and performance of iron/iron redox flow batteries

Energy Adv., 2026, Advance Article
DOI: 10.1039/D6YA00077K, Paper

Open Access

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Challuri Sai Venkata Akhil Kumar, Arghyadeep De, Hubert Weyrauch, Jens Tübke, Jens Noack
Elevated temperatures accelerate iron deposition but compromise structural integrity, causing capacity fade without dendrite formation, revealing a critical trade-off for stable long-term flow battery cycling.
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Centrifugally-spun PVA-based N, S-doped carbon nanofibers

Energy Adv., 2026, Advance Article
DOI: 10.1039/D6YA00075D, Paper

Open Access

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Meltem Yanilmaz, Mümine Demir, Juran Kim, Kyung Eun Lee
A self-standing SIB anode based on N, S co-doped PVA-derived CNFs via CS was developed, scalable fabrication, an eco-friendly carbon source, and exceptional structural stability for long-life and stable energy storage applications.
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Cyclic ether-based electrolyte solutions for potassium metal batteries

Energy Adv., 2026, Advance Article
DOI: 10.1039/D6YA00089D, Paper

Open Access

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Roy Heyns, Robert Markowski, Andrii Kachmar, Johannes Ingenmey, Wouter Monnens, Alexandru Vlad, Barbara Kirchner, Jan Fransaer, Koen Binnemans
Cyclic ethers as weakly coordinating solvents in electrolyte solutions promote anion-rich solvation structures, resulting in formation of stable anion-derived SEI, enabling reversible potassium metal plating/stripping on aluminum current collectors.
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