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The energy transition in China may lead to increased heating bills. A new study finds that cleaner alternatives to address gaps in heating may disproportionately increase residential heating costs, particularly in economically disadvantaged areas.
Energy efficiency investments in homes are critical for the energy transition, but the barriers to households making such investments are poorly understood. Wekhof and Houde show how natural language processing can be used to extract insights into the barriers and preferences obtained from narratives elicited from homeowners.
Manganese-rich NASICON-type compounds are promising cathode materials for sodium-ion batteries, but they suffer from severe voltage hysteresis. Here the authors uncover the root cause of voltage hysteresis in Na3MnTi(PO4)3 and demonstrate a doping strategy to mitigate the issue.
Dielectric capacitors based on relaxor ferroelectrics are a promising energy storage technology, and an efficient design of relaxors is useful to enhance the storage performance. Here the authors quantitatively evaluate the local compositional inhomogeneity of relaxors via a configurational entropy index and realize overall high performance in a Bi4Ti3O12-based device.
Electrolyte engineering has proven an effective approach to enhance the performance of lithium metal batteries. Here the authors propose a strategy by using multiple solvents in weakly solvating electrolytes—dubbed as high-entropy electrolytes—to improve the ionic conductivity while maintaining electrochemical stability, leading to high-performance batteries.
To prevent charge losses and degradation at the buried interface of inverted methylammonium-free perovskite solar cells, Li et al. form a 2D/3D perovskite structure using 2-aminoindan hydrochloride as an additive.
Hydrogen evolution and oxidation on platinum surfaces are central reactions in electrochemical devices. Sun et al. show that they can be promoted by introduction of the organic molecules, N-methylimidazoles, and explore the underlying phenomena at play through in situ spectroscopy and computation.
Peer referral behaviour may impact uptake of subsidized energy assistance programmes. A new study finds that simplifying the referral process and appealing to reciprocity may increase solar contracts for qualifying low-income households in California.
Lithium-rich layered oxides are promising cathode materials for next-generation batteries, but they suffer from long-standing problems such as voltage decay during cycling. Here the authors analyse the root cause of voltage decay and present a structure engineering strategy to mitigate the issue for a cobalt-free, lithium-rich layered oxide.
The efficiency and stability of methylammonium- and bromide-free perovskite inverted solar cells need improvement. Now, Chen et al. combine a Lewis-based additive with a fluorocarbon-modified ammonium salt to reduce defects in the perovskite, increasing the device performance.
An intensive effort in the development of Li-metal batteries is well underway. Here the authors design a Li salt with an asymmetric molecular structure that distinctly contrasts with conventional salts, enabling high-performance Li-metal batteries with carbonate electrolytes.
In 2015, China introduced power sector reform to improve the performance of its electricity market. Here Xiang et al. use unit-level data from plants in southern China to explore the political challenges faced by the reform, finding preferences for local enterprises over central state-owned ones.
Si anodes could be an alternative to Li anodes in the application of solid-state batteries, but they suffer from issues such as severe volume expansion and sluggish kinetics. Here the researchers develop a Li–Si alloy anode that is stabilized by hard carbon, which leads to exceptional high-performance solid-state batteries.
Storage is an increasingly important component of electricity grids and will play a critical role in maintaining reliability. Here the authors explore the potential role that rail-based mobile energy storage could play in providing back-up to the US electricity grid.
There is an intensive effort to develop Li-ion batteries that rely on sustainable materials. Here the authors employ a complex doping approach to synthesize low-Ni, Co-free cathode materials that display promising electrochemical performances.
Zhu et al. develop a low-cost donor–acceptor-type hole-selective layer that minimizes interfacial non-radiative charge recombination losses in single-junction and tandem solar cells based on metal halide perovskites with different bandgaps.
High-energy-density lithium metal batteries suffer from limited cycle life. Here the authors develop a homogeneous and mechanically stable solid–electrolyte interphase by using a trioxane-modulated electrolyte, thereby expanding battery cyclability.
Prelithiation can be used to address the issue of active lithium loss during lithium-ion battery operation, but its cost effectiveness needs to be improved. Here the researchers develop a roll-to-roll electrodeposition and transfer-printing system for the production of prelithiated battery anodes with high electrochemical performances.
The way catalysts are arranged and interfaced to form fuel cell electrodes is just as important as the catalysts themselves. Here Lee et al. report an up to 50% increase in performance and superior durability using grooved, rather than conventional flat, electrodes for hydrogen fuel cells.
Understanding how oil supply-side policies affect extraction, emissions and communities is important for the design of decarbonization pathways. Here the authors take a modelling approach to characterizing 2020–2045 decarbonization scenarios from various policies applied to California’s oil extraction.