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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.

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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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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. A = lithium or sodium (Li or Na), M represents a metal and 1 ≤ n < z. —Lu et al.

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Carnegie Mellon researchers develop semi-liquid lithium metal anode for use with solid electrolytes

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The SLMA consists of lithium microparticles evenly distributed in a dual-conductive polymer matrix. However, researchers have found that the contact between the ceramic electrolyte and a solid lithium anode is insufficient for storing and supplying the amount of power needed for most electronics.

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Fraunhofer researchers develop new low-cost dry-film electrode production process

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BroadBit uses it to produce new types of sodium-ion batteries. First, they mix the active materials, intended later to release the stored energy, with additives to create a paste. The shear forces in this system tear entire molecular chains out of the binder polymers. They process this dry mixture in a rolling mill.

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Drexel researchers demonstrate intercalation of MXenes with a variety of ions; high volumetric capacitance

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The fact that MXenes can accommodate ions and molecules in this way is significant because it expands their ability to store energy. Barsoum and Gogotsi’s report looks at intercalation of MXenes with a variety of ions, including lithium, sodium, magnesium, potassium, ammonium and aluminum ions. —Yury Gogotsi.

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U-M leads new DOE-funded research center for ceramic ion conductors; MUSIC

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The University of Michigan (U-M) and eight partner institutions will explore the use of ceramic ion conductors as replacements for the traditional liquid or polymer electrolytes in common lithium-ion batteries for electric vehicles and in flow cells for storing renewable energy in the grid.

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UT Austin team devises new strategy for safe, low-cost, all-solid-state rechargeable Na or Li batteries suited for EVs

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John Goodenough, known around the world for his pioneering work that led to the invention of the rechargeable lithium-ion battery, have devised a new strategy for a safe, low-cost, all-solid-state rechargeable sodium or lithium battery cell that has the required energy density and cycle life for a battery that powers an all-electric road vehicle.

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