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Sion Power reports 400 Wh/kg, 700 Wh/L and 350 cycles under 1C for Li-ion battery with Li-metal anode technology

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Yuriy Mikhaylik, Sion Power’s Director of Materials, is presenting details on this performance in an invited presentation at the ECS meeting in Honolulu this week. Sion’s roadmap to high energy density batteries. This approach addresses the safety and cycle life problems that have historically plagued lithium-metal electrodes.

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ZSW develops process for Li-ion batteries with extended cycle life; 10,000 charge cycles

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Scientists at the Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg (ZSW) (Center for Solar Energy and Hydrogen Research Baden-Württemberg) have developed Li-ion batteries that have already demonstrated a very high cycle life of more than 10,000 full cycles with retention of more than 85% of original capacity.

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NEC develops prototype 4.5V, long-life manganese Li-ion battery; 30% more energy density, high capacity and light weight

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High voltage lithium-ion battery prototype. NEC Corporation has developed a prototype next-generation manganese lithium-ion battery featuring cathodes that support higher voltage operations (4.5V These developments could help increase the range of electric vehicles in the future while reducing the weight of the batteries.

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USC team uses mixed conduction membranes to suppress polysulfide shuttle in Li-S batteries

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One of the major issues hobbling the commercialization of high energy-density lithium-sulfur batteries is the “polysulfide shuttle”—the shuttling of polysulfide ions between the cathode and anode. The polysulfide shuttle is a major technical issue that limits the electrical performance and cycle life of this type of battery.

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More details on work supporting NEC prototype 4.5V Li-ion battery; modified LiNiMnO cathode and fluorinated electrolyte

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NEC Corporation has developed a prototype next-generation manganese lithium-ion battery featuring cathodes that support higher voltage operations (4.5V The new cathode and electrolyte solution improve battery energy density by approximately 30%. Honolulu PRiME 2012. WO/2012/127717: Secondary Battery. Earlier post.)

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Project shows maritime fuel cell generator can increase energy efficiency by up to 30% at part load; reliability and cost issues

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A report authored by Sandia National Laboratories on the project found that the project showed that it is possible to increase energy efficiency by up to 30% at part load and reduce emissions to zero through the use of hydrogen fuel cells. One opportunity to do so was identified in Honolulu Harbor at the Young Brothers Ltd. (YB)

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Top 15 Nissan LEAF markets in US in 2013

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Nissan provided a list of the top 15 markets in the US for the Nissan LEAF battery-electric vehicle. Another three are on the West Coast and in Hawaii: Seattle (4), Portland (5), and Honolulu (6). Honolulu, with 26 quick chargers, has one of densest charging grids in the US. Top 15 LEAF market year-to-date in 2013. Earlier post.)

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