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Researchers move closer to faster-charging Li-ion batteries; real-time tracking of Li ions in LTO

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A team of scientists led by the US Department of Energy’s (DOE) Brookhaven National Laboratory and Lawrence Berkeley National Laboratory has captured in real time how lithium ions move in lithium titanate (LTO), a fast-charging battery electrode material made of lithium, titanium, and oxygen.

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Delhi startup develops air-purifying motorcycle helmet

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The helmet titled PUROS is integrated with air purifying accessories which include the patented innovations of the startup: a Brushless DC (BLDC) blower fan, H13-grade HEPA filter ( EN 1822 ), electronic circuit, and microUSB charging port for the Li-ion battery integrated into the helmet.

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PNNL team pinpoints cause of dendrites and whiskers in lithium batteries; ethylene carbonate a culprit

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Dendrites and whiskers are holding back the widespread use of lithium metal batteries, which have higher energy density than their commonly used lithium-ion counterparts. Li whisker formation during electrochemical deposition of Li in a CO 2 environment. a–c, Sequential TEM snapshots of Li particle nucleation.

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New conductive polymer addresses volumetric change issue with silicon anodes for Li-ion batteries; high-capacity and longer cycle life reported

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A team of scientists at the US Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) has developed new polyfluorene-based conductive polymers that address the long-standing issue of volumetric change in high-capacity silicon (Si) anodes for Li-ion batteries. to determine their key electronic properties.

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Liquid microscopy technique reveals new problem with lithium-oxygen batteries; lithium peroxide in electrolyte

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One of the reasons for this loss of power is that a byproduct of the chemical reactions that take place inside the battery—lithium peroxide (Li 2 O 2 —builds up on the electrodes of the battery. The growth of Li 2 O 2 isolated in the electrolyte exhibits O 2 - diffusion-limited kinetics. —He et al.

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Berkeley Lab researchers shed light on how lithium-rich cathodes work, opening the door to higher capacity batteries

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The traditional design paradigm for Li-ion battery cathodes has been to create compounds in which the amount of extractable Li + is well balanced with an oxidizable transition metal (TM) species (such as Mn, Fe, Co or Ni) to provide the charge-compensating electrons, all contained in an oxide or sulfide host. O 2 , Li 2 Ru 0.5

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APRA-E awards WUSTL $2M to develop predictive battery management system for plug-in vehicles; targeting more efficient use

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Louis (WUSTL) will receive $2 million from the US Department of Energy’s ARPA-E to design a predictive battery management system for lithium-ion batteries to guarantee their longevity, safety and performance. If Li-ion batteries are charged too quickly, they can heat up and may explode. —Venkat Subramanian. Resources.

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