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New high-voltage electrolyte additive supports high energy density and stability in LMNC Li-ion battery; 2x energy density over LiCoO2

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A team led by researchers at Chungnam National University (S. Korea) has developed a novel high-voltage electrolyte additive, di-(2,2,2 trifluoroethyl)carbonate (DFDEC), for use with the promising lithium-rich layered composite oxide high-energy cathode material xLi 2 MnO 3 ยท(1-x)LiMO 2 (M = Mn, Ni, Co). O 2 (Li 1.2

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Sulfur nanodots on nickel foam as high-performance Li-S cathode materials; carbon- and binder-free

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A team at Nankai University in China has devised high-performance Li-sulfur battery cathode materials consisting of sulfur nanodots (2 nm average) directly electrodeposited on flexible nickel foam; the cathode materials incorporate no carbon or binder. However, the electrochemical inertness of bulk sulfur in the cathode of Li?

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U Akron team develops Mn-based high performance anode for Li-ion batteries

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Researchers at the University of Akron have developed hierarchical porous Mn 3 O 4 /C nanospheres as anode materials for Li-ion batteries. mA/g), excellent ratability (425 mAh/g at 4 A/g), and extremely long cycle life (no significant capacity fading after 3000 cycles at 4A/g) as an anode in a Li-ion battery. Li/Li + ).

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6 DOE-funded applied battery research projects targeting Li-ion cells with >200 Wh/kg for PHEVs and EVs

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A team led by Argonne National Laboratory and including Brookhaven and Lawrence Berkeley National Laboratories and the University of Utah, is developing a new high energy redox couple (250 Wh/kg) based on a high-capacity full gradient concentration cathode (FCG) (230 mAh/g) ( earlier post ) and a Si-Sn composite anode (900 mAh/g).

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Envia Systems announcement may herald the first wave of DOE-supported commercial high energy density Li-ion cells with Si-C anodes

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Other silicon anode projects supported by the DOE includes those being done by Amprius, Angstrom Materials and NC State University. Consequently, the market may be poised for the entrance of a first wave of higher-energy density—and lower-cost—automotive Si-C cells in the 2014 or 2015 timeframe. Click to enlarge.

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Faradion demonstrates proof-of-concept sodium-ion electric bike

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Oxford University was also a partner. Although lithium-ion batteries are currently the predominant battery technology in electric and hybrid vehicles, as well as other energy storage applications, sodium-ion could offer significant cost, safety and sustainability benefits. Na 4 M 3 (PO 4 ) 2 P 2 O 7 , M = Fe, Co, Ni, Mn etc.;

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GWU team demonstrates one-pot process for optimized synthesis of controlled CNTs from CO2; coupling cement and C2CNT

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Researchers at George Washington University led by Dr. Stuart Licht ( earlier post ) have developed a new process that transforms CO 2 into a controlled selection of nanotubes (CNTs) via molten electrolysis; they call the process C2CNT (CO2 into carbon nanotubes). —Ren et al.

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