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Virginia Tech team demonstrates green manufacturing method for Li-ion batteries

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million kg per year of NMP is used for depositing the cathode layers for a battery manufacturing plant producing 100,000 packs per year of 60 kW, 10 kWh plug-in hybrid vehicle (PHEV) batteries. Given that the global lithium-ion battery production capability is ~400 GWh, humongous amount of NMP is needed. —Li et al.

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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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The objective of the projects is to develop cells that provide more than 200 Wh/kg energy density, along with long cycle life and excellent abuse tolerance to enable 40-mile-range plug-in hybrid (PHEV) and electric vehicles (EVs). One common attribute of all the projects is the use of some form of silicon-based material for the anode.

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ANL team reports new electrolyte additive for high-voltage Li-ion chemistry

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In a paper published in the Journal of the Electrochemical Society , a team from Argonne National Laboratory reports identifying a fluorinated carbonate compound as an electrolyte additive capable of stabilizing the new fluorinated electrolyte/electrode interphase in a high-voltage spinel LiNi 0.5 O 4 /graphite cell. O 4 /graphite cell.

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CMU study suggests difficulties in reaching targeted low price points for Li-ion batteries

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Historical prices and future cost predictions for lithium-ion batteries. They noted that due to current sales trends, three lithium-ion chemistries account for nearly all of the storage capacity, and half of the cells are cylindrical. kWh average pack size for PHEVs and double the 42 kWh average for BEVs.

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Toshiba researchers use TiNb2O7 anodes for high-energy, fast-charging, long-life Li-ion batteries for EVs

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A team at Toshiba’s Corporate Research & Development Center in Kawasaki, Japan, has developed a high-density TiNb 2 O 7 (HD-TNO) composite electrode consisting of micro-size spherical TNO secondary particles coated with carbon. The team fabricated large-size lithium-ion batteries using the HD-TNO anode and a LiNi 0.6 2018.06.059.

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High-performance micro-sized Si-C composite for Li-ion anodes offers high tap density for high volumetric capacity

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A team at Penn State University has synthesized a micro-sized silicon-carbon (Si-C) composite consisting of interconnected Si and carbon nanoscale building blocks as anode materials for Li-ion batteries (LIBs). Cycling performance of the Si-C composite and porous Si at 400 mA/g. Source: Yi et al. Click to enlarge.

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Characteristics of Hitachis 3rd-gen Li-ion power cell used in GMs eAssist; 4th gen power cells and PHEV cells coming

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kWh lithium-ion battery system built with Hitachi third-generation power-optimized cells. The third-generation cylindrical cells feature a manganese-based cathode and amorphous carbon anode, and offer a high output power density of 3,000 W/kg together with small size and light weight. Hitachi automotive Li-ion HEV power cells.

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