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MIT, Brookhaven team develops simple method for stabilizing interfaces in solid-state lithium-ion batteries

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Solid-state batteries could potentially not only deliver twice as much energy for their size, they also could virtually eliminate the fire hazard associated with today’s lithium-ion batteries. The research was supported by the US Army Research Office through MIT’s Institute for Soldier Nanotechnologies. —Professor Yildiz.

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MIT: hybrid cathodes could boost energy capacity of lithium-sulfur batteries

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Researchers at MIT and in China are proposing a new class of dense intercalation-conversion hybrid cathodes by combining intercalation-type Mo 6 S 8 with conversion-type sulfur (HMSC) to realize a Li–S full cell. The electronic insulating nature of the S 8 and Li 2 S phases (as compared to, say, Li x CoO 2 , with its high Co 3+ ?

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MIT electrolyte enables ultra-high voltage Ni-rich cathodes in Li-metal batteries

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MIT researchers and colleagues at two national laboratories have developed a sulfonamide-based electrolyte that enables stable cycling of a commercial LiNi 0.8 V in lithium-metal batteries (LMBs). There’s still really nothing that allows a good rechargeable lithium-air battery.

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Stanford, CMU, MIT team reviews challenges to practical implementation of solid-state Li-ion batteries

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Toyota, which has been working on solid-state batteries for EVs for a number of years ( earlier post ), is in the news with a report by the Wall Street Journal that it will be ready to commercialize a solid-state battery by 2022. However, there remain a number of unresolved issues precluding commercialization at this point.

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Study finds rapid charging and draining doesn’t damage lithium-ion electrode as much as thought

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A new study has found that rapid-charging a lithium-ion battery and using it to do high-power, rapidly draining work may not be as damaging as researchers had thought, and that the benefits of slow draining and charging may have been overestimated. For this study scientists looked at a lithium iron phosphate cathode material.

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MIT/Tsinghua high-rate aluminum yolk-shell nanoparticle anode for Li-ion battery with long cycle life and high capacity

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A team of researchers at MIT and Tsinghua University has developed a high-rate, high-capacity and long-lived anode for Li-ion batteries comprising a yolk-shell nanocomposite of aluminum core (30 nm in diameter) and TiO 2 shell (~3 nm in thickness), with a tunable interspace (Al@TiO 2 , or ATO). —Li et al.

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24M emerges from stealth mode with new semi-solid Li-ion cell; <$100/kWh by 2020

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Stealth-mode battery start-up 24M has introduced its new semi-solid lithium-ion cell. Together, our inventions achieve what lithium-ion has yet to do—meet the ultra-low cost targets of the grid and transportation industries. The lithium-ion battery is a brilliant, enabling technology, but its economics are flawed.

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