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ORNL, XALT show nanoscale alumina coating on layered oxide cathode materials substantially improves Li-ion battery performance

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The ability to mitigate degradation mechanisms for Ni-rich NMC and NCA provides insight into a method to enable the performance of high-voltage Li-ion batteries, they concluded. In order to achieve reasonable cycle life utilizing the high capacities gained via high voltage, phase instability is a key problem that must be addressed.

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Dalhousie team reports ternary blends of electrolyte additives greatly enhance performance of NMC Li-ion cells

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Researchers at Dalhousie University (Canada) led by Dr. Jeff Dahn now report that Li[Ni 1/3 Mn 1/3 Co 1/3 ]O 2 (NMC111)/graphite and Li[Ni 0.42 Their work is published in a paper in an open access article in the Journal of the Electrochemical Society. —Ma et al. Lin Ma, Jian Xia, and J.

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New aqueous rechargeable lithium battery shows good safety, high reliability, high energy density and low cost; another post Li-ion alternative

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mol l -1 Li 2 SO 4 aqueous solution as electrolyte. Researchers from Fudan University in China and Technische Universität Chemnitz in Germany have developed an aqueous rechargeable lithium battery (ARLB) using coated Li metal as the anode. mol l -1 Li 2 SO 4 aqueous solution as electrolyte, an ARLB is built up.

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First experimentally observed all-boron fullerene shows promise for hydrogen storage

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Researchers from Soochow University in China report that the newly found B 40 —the first experimentally observed all-boron fullerene—when coated with 6 titanium atoms (Ti 6 B 40 ) can store up to 34 hydrogen molecules, corresponding to a maximum gravimetric density of 8.7 wt%. According to their DFT calculations, it takes 0.2-0.4 eV/H

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Ultrathin LiMn2O4 Nanowire Cathode Materials for Higher Li-ion Power Densities for HEV and EV Applications

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A team of researchers from the Korea Advanced Institute of Science and Technology, Università degli Studi di Milano-Bicocca (Italy), and Stanford University have synthesized ultrathin LiMn 2 O 4 nanowires for use as a Li-ion cathode material offering high power densities. Article ASAP doi: 10.1021/nl101047f.

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New direct borohydride fuel cell increases peak power density by factor of 1.7–3.7

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Researchers at Xi’an Jiaotong University in China have developed a new direct borohydride fuel cell (DBFC) that shows a peak power density of 663 mW·cm -2 at 65 °C (149 °F)—an increase in power density by a factor of 1.7 Xiaodong Yang, Yongning Liu, Sai Li, Xiaozhu Wei, Li Wang & Yuanzhen Chen (2012).

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Researchers Seek to Enhance Commercial Potential for Aluminum-Air Cell by Modeling Effects of Parasitic Hydrogen Evolution

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kWh/kg of Al—second only to the Li-air battery (13.0 With its low cost, low environmental impact and safety aspects, the Al-air system has potential to serve as a near-term power source for electric vehicles, according to a research team from The University of Hong Kong and Hong Kong Polytechnic University. Earlier post.)

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