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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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ORNL researchers develop new class of cobalt-free cathodes with enhanced energy density for next-gen Li-ion batteries: NFA

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Oak Ridge National Laboratory (ORNL) researchers have developed a new family of cobalt-free cathodes with the potential to replace the cobalt-based cathodes typically found in today’s lithium-ion batteries that power electric vehicles and consumer electronics. Ion Batteries.” —Muralidharan et al. Muralidharan, N., Essehli, R.,

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PNNL: single-crystal nickel-rich cathode holds promise for next-generation Li-ion batteries

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High-energy nickel (Ni)–rich cathode will play a key role in advanced lithium (Li)–ion batteries, but it suffers from moisture sensitivity, side reactions, and gas generation. The gliding occurs as the battery charges and discharges—lithium ions depart and return to cathode, straining the crystal ever so slightly each time.

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Researchers develop real-time picture of formation of solid–electrolyte interphase of a Li-ion battery

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During the first charging process of a new Li-ion battery cell, trace amounts of electrolyte components decompose sacrificially to form what is called a solid–electrolyte interphase (SEI) on the anode surface. The inner SEI is continuous, dense and impermeable to electrolytes, and it is most probably composed of Li 2 O.

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Titan Advanced Energy Solutions receives ~1.1M Phase II SBIR award to develop production-ready ultrasound system to identify dangerous Li-ion batteries

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million in Phase II SBIR funding from the US DOE ( earlier post ) to develop an early warning system that detects hazardous conditions in lithium-ion batteries. Lithium-ion batteries are critical to energy storage for renewable energy and electric vehicles but there are concerns about their safety. State of Charge (SoC).

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Stanford study finds charging Li-ion cells at different rates boosts the lifetimes of EV battery packs

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Stanford University researchers have devised a new way to make lithium-ion battery packs last longer and suffer less deterioration from fast charging. The key is to tailor charging rates to the unique capacity of each cell to stave off failure. —Simona Onori.

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ANL researchers report photo-excitation can speed up Li-ion charging by factor of two

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Researchers at the US Department of Energy’s (DOE) Argonne National Laboratory have reported that a new photo-excitation mechanism can speed up the charging of lithium-ion batteries by a factor of two or more. A serious limitation [of lithium-ion batteries], however, is the slow charging rate used to obtain the full capacity.

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