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Researchers use carbon-based anodes with “bumpy” surfaces for Li-ion batteries that last longer in extreme cold

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the key to addressing the low-temperature capacity loss lies in adjusting the surface electron configurations of the carbon anode to reinforce the coordinate interaction between the solvated Li + and adsorption sites for Li + desolvation and reduce the activation energy of the charge-transfer process. . … —Lu et al.

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UC Irvine team creates long-lasting, cobalt-free, low-nickel lithium-ion batteries

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In a discovery that could reduce or even eliminate the use of cobalt—which is often mined using child labor—in the batteries that power electric cars and other products, scientists at the University of California, Irvine (UCI) have developed a long-lasting alternative made with nickel. The LiNi 0.5 V vs graphite, at 1 C, 1.5 mA cm

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Novel molecular orbital interaction stabilizes cathode materials for lithium-ion batteries

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An international team led by scientists from the Institute for Superconducting and Electronic Materials at the University of Wollongong in Australia has verified that the introduction of novel molecular orbital interactions can improve the structural stability of cathode materials for lithium-ion batteries. Resources.

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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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New cost forecast model finds 2020 cost/kW for PEM fuel cell stacks and Li-ion high-power batteries could be roughly equal

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Researchers at Daimler AG and a colleague at Albstadt-Sigmaringen University have developed a new cost forecast model for hydrogen fuel cell stacks and Li-ion batteries using a two-factor experience curve approach. The endogenous cost degression in the model is driven by output and patent publications. —Mayer et al.

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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. NCA cells are $206 kWh -1 and NMC cells are $180 kWh -1. —Ciez and Whitacre.

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