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Sandia testing method yields pathway to better, longer-lasting solid-state batteries

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Here, we combine two operando methods, Kelvin probe force microscopy (KPFM) and neutron depth profiling (NDP), to identify the rate-limiting interface in operating Si-LiPON-LiCoO 2 solid-state batteries by mapping the contact potential difference (CPD) and the corresponding Li distributions. —Alec Talin, co-corresponding author.

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New halogen conversion-intercalation chemistry enables high-energy density aqueous Li-ion battery

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A team of researchers led by a group from the University of Maryland has. volts versus Li/Li +. Combining this cathode with a passivated graphite anode, the team created a 4V-class aqueous Li-ion full cell with an energy density of 460 Wh kg -1 of total composite electrode and about 100% Coulombic efficiency.

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U Maryland and US Army Research Lab furthering “water-in-salt” electrolyte Li-ion battery; targeting EV use

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University of Maryland (UMD) and US Army Research Lab (ARL) researchers are spearheading a public-private sector collaboration to further develop a lithium-ion battery that would be safer to operate and less costly to dispose of than those currently available on the market. A full lithium-ion battery of 2.3 Earlier post.)

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ARPA-E awards $42M to 12 projects for advanced EV batteries; EVs4ALL program

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ARPA-E selected the following 12 teams from universities, national laboratories and the private sector to address and remove key technology barriers to EV adoption by developing next-generation battery technologies: 24M Technologies will develop low-cost and fast-charging sodium metal batteries with good low-temperature performance for EVs.

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NASA selects proposals for advanced energy storage systems for future space missions: silicon-anode Li-ion and Li-S

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NASA has selected four proposals for advanced Li-ion and Li-sulfur energy storage technologies that may be used to power the agencys future space missions. High Energy Density and Long-Life Li-S Batteries for Aerospace Applications, submitted by the California Institute of Technology in Pasadena.

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UMD team develops new high-performance solid-state ion-conducting membrane for Li batteries

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Researchers at the University of Maryland have developed a novel, flexible, solid-state, ion-conducting membrane based on a 3D ion-conducting ceramic nanofiber network. The 3D ion-conducting network is based on percolative garnet-type Li 6.4 La 3 Zr 2 Al 0.2 mA/cm 2 for over 300 h. … —Fu et al.

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UMD researchers report solution to high interfacial impedance hampering developing of high-performance solid-state Li-ion batteries

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Garnet-type solid-state electrolytes (SSEs) for Li-ion batteries offer a range of attractive benefits, including high ionic conductivity (approaching 1 mS cm −1 at room temperature); excellent environmental stability with processing flexibility; and a wide electrochemical stability window. With the garnet composition Li 7 La 2.75

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