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Li metal batteries offer much hope for the future of high-energy storage systems. Albertus et al. survey the current status of research and commercial efforts, and discuss key metrics and measurements as well as cost issues in enabling high-performing lithium metal electrodes.
Understanding interfacial charge transfer in water-splitting photoelectrodes is complicated by the delicate interplay between catalyst and light absorber. Now, an approach based on atomic force microscopy is exploited to measure the surface electrochemical potential of nanostructured catalyst-coated electrodes in operando.
It is challenging to unlock anionic redox activity, accompanied by full utilization of available cationic redox process, to boost capacity of battery cathodes. Now, material design by tuning the metal–oxygen interaction is shown to be a promising solution.
Hydropower represents about 20% of sub-Saharan electricity, and expansion is underway. Rainfall varies year-to-year in geographical clusters, increasing the risk of climate-related electricity supply disruption in dry years.
Understanding individual energy use can inform interventions for energy conservation. A longitudinal qualitative interview study shows that energy use behaviour is not simply a matter of individual choice, but rather is influenced by unique personal circumstances and familial and social relationships, which change over time.
The UN’s Agenda for Sustainable Development has 17 goals with 169 targets for action across a range of issues, with access to sustainable energy for all being Goal 7. This Perspective analyses interlinkages between energy systems, Goal 7 and the other goals at the target level, identifying synergies and trade-offs between them.
A policy sequence for low-carbon policy that is politically effective continues to face challenges of environmental and cost effectiveness. This Perspective outlines ways to address these issues within political constraints.
For proton-conducting metal–organic frameworks (MOFs) to find application as the electrolyte in proton-exchange membrane fuel cells, materials with better stability and conductivity are required. Now, a structurally flexible MOF that is also highly stable is demonstrated to possess high proton conductivity over a range of humidities.
Kesterite solar cells are low-cost alternatives for photovoltaics, based only on abundant metals, but they exhibit limited voltages. A new wide-gap kesterite solar cell provides a much higher voltage at a good efficiency.
The Eastring gas pipeline intends to connect Slovakia with southern and eastern European states in light of other infrastructural changes in the region. Misik and Nosko argue that neither perceived loss of energy security nor loss of rents from gas transit should be the main drivers behind the project.
Using cheap organic material as the cathode and abundant sodium as the charge carrier is attractive for sustainable battery technologies. Now, highly reversible four-sodium storage in a nano-sized disodium rhodizonate organic cathode is achieved.
Transparency offers integration routes unavailable to opaque photovoltaics. Here, Lunt and co-workers review recent progress in transparent solar technologies, highlight technical challenges and measurement considerations, and review performance requirements for various applications.
Understanding how subsidies affect fossil-fuel investment returns and production is crucial to commencing new reforms. New analysis on the impact of subsidies on US crude-oil producers finds that, at recent oil prices of around US$50 per barrel, tax preferences and other subsidies push nearly half of new oil investments into profitability.
Urban households in the global south face unique energy access challenges. This Perspective outlines a research agenda based on understanding the needs of urban energy users to promote inclusive urban energy transitions.
The shale gas revolution has led to a boom in construction of shale oil and gas wells in recent years. New research offers a more accurate accounting of its growing land-use footprint.
Confining sulfur in high-surface-area carbon is a widely adapted approach in Li–S batteries, but it often results in low sulfur utilization and low energy density. Now, controlled nucleation of discrete Li2S particles on a network of low-surface-area carbon fibres provides a possible solution to the endemic problems of Li–S batteries.
Household income is a typical measure of inequality, but it is limited by under-reporting, especially for rural Chinese households. A new study shows that energy consumption measures service flows of household durable electronics, which can provide more precise measurement of rural wealth inequalities and distributions.
Light-weight and stretchable, organic photovoltaics offer unique integration prospects. Now, organic solar cells and modules can also be washed while maintaining good photoconversion efficiencies.
Environmental heat sinks beyond local air are available for use with normal air conditioners to increase their efficiency. A study has exploited outer space and the atmosphere as remote sinks to demonstrate daytime sub-ambient fluid cooling and its application in reducing the energy needed to cool an interior.
Despite being currently under-represented in IPCC reports, PV generation represents a growing share of power generation. This Perspective argues that underestimating PV potential led to suboptimal integration measures and that specific deployment strategies for emerging economies should be developed.