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Chalmers team develops graphite-like anode for Na-ion batteries; Janus graphene

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Researchers at Chalmers University of Technology, Sweden, have developed a nanometric graphite-like anode for sodium ion (Na + storage), formed by stacked graphene sheets functionalized only on one side, termed Janus graphene. The estimated sodium storage up to C 6.9 Na is comparable to graphite for standard lithium ion batteries.

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ARPA-E awards $42M to 12 projects for advanced EV batteries; EVs4ALL program

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ARPA-E selected the following 12 teams from universities, national laboratories and the private sector to address and remove key technology barriers to EV adoption by developing next-generation battery technologies: 24M Technologies will develop low-cost and fast-charging sodium metal batteries with good low-temperature performance for EVs.

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New high energy, highly stable cathode for sodium-ion batteries

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F 0.7 , for sodium-ion (Na-ion) batteries (NIBs). While high-energy Li-ion batteries (LIBs) are expected to contribute in part to the solution, the high cost and low stability prohibit wide application in this area, the researchers observe. Ragone plot for the new Na 1.5 cathode and other cathode materials for NIBs.

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Vanderbilt researchers find iron pyrite quantum dots boost performance of sodium-ion and Li-ion batteries

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nm, average) of iron pyrite (FeS 2 ) nanoparticles are advantageous to sustain reversible conversion reactions in sodium ion and lithium ion batteries. FeS 2 is particularly attractive for energy storage technology due to its earth abundance, low toxicity, and low raw material cost. … nanometers in size.

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Aqua Metals and 6K Energy collaborate to establish sustainable US battery supply chain – Charged EVs

Baua Electric

The companies’ patented processes also eliminate the production of thousands of tons of sodium sulfate waste—a byproduct of traditional cathode production and recycling methods.

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China-US team uses graphene composite separator to suppress polysulfide shuttling in Li-S batteries

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In their paper on the work published in the journal Joule , the researchers reported that by using a reduced graphene oxide (rGO)/sodium lignosulfonate (SL) composite on the standard polypropylene (PP) separator (rGO@SL/PP), they demonstrated a highly robust Li-S battery with a capacity retention of 74% over 1,000 cycles. …

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PNNL team develops new localized high-concentration electrolyte for high-voltage Li-metal batteries

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Unlike other HCEs developed earlier, the new PNNL electrolyte exhibits low concentration, low cost, low viscosity, improved conductivity, and good wettability that could bring lithium metal batteries (LMBs) closer to practical applications.

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