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Researchers devise seawater-resilient bipolar membrane electrolyzer for turning seawater into hydrogen

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The design proved successful in generating hydrogen gas without producing large amounts of harmful byproducts. Generation of H 2 and O 2 from untreated water sources represents a promising alternative to ultrapure water required in contemporary proton exchange membrane-based electrolysis. —Marin et al.

Hydrogen 418
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New liquid alloy electrode significantly lowers operating temperature of sodium-beta batteries; improved performance

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Researchers at Pacific Northwest National Laboratory (PNNL) have devised an alloying strategy that enables sodium-beta batteries to operate at significantly lower temperatures. The new electrode enables sodium-beta batteries to last longer, helps streamline their manufacturing process and reduces the risk of accidental fire.

Sodium 218
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KAUST team devises electrically-driven membrane process for seawater lithium mining

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Seawater contains significant quantities of lithium—approximately 5,000 times more than is found on land—potentially providing an almost unlimited resource of lithium for meeting the rapid growth in demand for lithium batteries. 13000 ppm of sodium, magnesium, calcium, and potassium ions, among others). —Li et al.

Li-ion 476
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Univ. of Texas researchers propose lithium- or sodium-water batteries as next generation of high-capacity battery technology; applicable for EVs and grid storage

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Example of a lithium-water rechargeable battery. Researchers at the University of Texas, including Dr. John Goodenough, are proposing a strategy for high-capacity next-generation alkali (lithium or sodium)-ion batteries using water-soluble redox couples as the cathode. The present sodium-sulfur battery operates above 300 °C.

Sodium 218
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SiGNa Chemistry Demonstrates Sodium Silicate-Based Hydrogen Generation System for Portable Fuel Cells

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Prototype sodium silicate hydrogen generation system as presented earlier this year at DOE merit review. a developer of stabilized reactive metals for safer, more efficient industrial chemistry, announced the successful design, assembly, and initial testing of its H300 Hydrogen Generation System. Click to enlarge. Earlier post.).

Sodium 230
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UH team reports new catalyst efficiently produces hydrogen from seawater; promising for large-scale hydrogen production, desalination

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Researchers say the device, composed of inexpensive non-noble metal nitrides, manages to avoid many of the obstacles that have limited earlier attempts to inexpensively produce hydrogen or safe drinking water from seawater. The work is described in an open-access paper in Nature Communications.

Hydrogen 247
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Researchers develop rechargeable hybrid-seawater fuel cell; highly energy density, stable cycling

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Schematic illustration of the designed hybrid-seawater fuel cell and a schematic diagram at the charged–discharged state. Sodium can serve as an alternative to lithium in rechargeable batteries as the reversible storage mechanisms for sodium ions are very similar (e.g., an alloying material), in full sodium-ion configuration.

Recharge 285