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Argonne, PNNL researchers develop new cobalt-free cathode for high-energy Li-ion cells

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A team from Argonne National Laboratory and Pacific Northwest National Laboratory (PNNL) has developed a new cobalt-free cathode for high-energy lithium-ion cells. O 2 cathode with a predominant, partially-disordered lithiated-spinel structure was prepared by a low-temperature (LT) synthesis. The novel LiMn 0.5 V and ~4.6

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New cobalt-free high-voltage spinel cathode material with high areal capacity

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Advancing cathode materials with both high energy density and low cost have always been the main objective of battery material research. It should be noted, the cost and sustainability of lithium-ion batteries are not only limited by the production of Co and Ni but also potentially limited by the lithium element itself. …

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New high-voltage electrolyte additive supports high energy density and stability in LMNC Li-ion battery; 2x energy density over LiCoO2

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Korea) has developed a novel high-voltage electrolyte additive, di-(2,2,2 trifluoroethyl)carbonate (DFDEC), for use with the promising lithium-rich layered composite oxide high-energy cathode material xLi 2 MnO 3 ·(1-x)LiMO 2 (M = Mn, Ni, Co). O 2 (Li 1.2 Mn 0.525 Ni 0.175 Co 0.1 Mn 0.525 Ni 0.175 Co 0.1

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PNNL: single-crystal nickel-rich cathode holds promise for next-generation Li-ion batteries

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Scientists at the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) report new findings about how to make a single-crystal, nickel-rich cathode hardier and more efficient. We observe reversible planar gliding and microcracking along the (003) plane in a single-crystalline Ni-rich cathode. —Bi et al.

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WSU team develops highly-efficient, low-cost nickel-iron nanofoam for OER for water splitting

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By in situ reduction of the metal precursors, the researchers synthesized compositionally controlled three-dimensional Ni x Fe y nanofoams (NFs) with high surface area and uniformly distributed bimetallic networks. At a potential as low as 1.42V (vs. —Fu et al. 2017.12.010.

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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. Wang et al.

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Hanyang/BMW team develops high-energy density Li-ion battery with carbon-nanotube-Si composite anode and NCM concentration gradient cathode

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Researchers from Hanyang University in Korea and the BMW Group have developed a new fully operational, practical Li-ion rechargeable battery combining high energy density with excellent cycle life. A report on their work is published in the RSC journal Energy & Environmental Science. Energy density of different LIBs.

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