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Researchers develop rechargeable hybrid-seawater fuel cell; highly energy density, stable cycling

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Researchers from Ulsan National Institute of Science and Technology (UNIST) in Korea and Karlsruher Institute of Technology in Germany have developed a novel energy conversion and storage system using seawater as a cathode. Similarly, sodium has recently attracted attention as a replacement for lithium in alkali-metal-air batteries.

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Caltech engineers devise new thermochemical cycle for water splitting for H2; recyclable, non-toxic, non-corrosive and at lower temperatures

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The thermochemical production of hydrogen and oxygen from water via a series of chemical reactions is of interest because it directly converts thermal energy into stored chemical energy (hydrogen and oxygen), and thus can take advantage of excess heat given off by other processes. —Xu et al.

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Researchers Develop Lithium-Water Electrochemical Cell for the Controlled Generation of H2 and Electricity

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Schematic representation and operating principles of the lithium–water electrochemical cell used for hydrogen generation: (1) external circuit and (2) inside of lithium–water electrochemical cell. the high-school chemistry demonstration of the violent reaction between sodium and water.). sea water) by using sunlight.

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Energy storage: the key to a decarbonised future

Setec Powerr

Just like we put food in the refrigerator, we can store it for days or weeks without eating it immediately or discarding it. Others solid battery types are nickel-cadmium and sodium-sulphur, while zinc-air is emerging. Storage devices can save energy in many forms (e.g., Batteries encompass a range of chemistries. Mechanical storage.

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CO2-neutral hydrogen storage with a bicarbonate/formate system

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Metal hydride tanks store hydrogen in a relatively manageable volume but are very heavy and expensive, as well as operating only at high temperatures or far too slowly. The nontoxic aqueous solution of formate is easily stored and transported. to sodium formate in 96% yield at 70 °C in water/THF without additional CO 2.

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What are the types of batteries used in EV? | EV Basics

Setec Powerr

Battery: The battery is suitable for pure electric vehicles, including lead-acid batteries, nickel-metal hydride batteries, sodium-sulfur batteries, secondary lithium batteries, air batteries, and ternary lithium batteries. (1) Alkaline fuel cells consume oxygen and pure oxygen to produce drinking water, heat and electricity.

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MIT and Moscow State collaborating on advanced batteries, metal-air batteries and reversible fuel/electrolysis cells

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This allows storage of charge at a higher volumetric or gravimetric density, which translates to a higher stored energy density or storage capacity for a given size or weight. Other work focuses on sodium as an earth-abundant alternative to lithium, but while it could lower cost, sodium ions also carry just a single charge.

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