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Fluorine-incorporated interface enhances cycling stability of Li metal batteries with Ni-rich NCM cathodes

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Li metal anodes and Ni-rich layered oxide cathodes with high reversible capacities are promising candidates for the fabrication of high energy density batteries. Li/Li + ). O 2 full cell, with a high Coulombic efficiency of 99.98% after 100 cycles at 25 °C. —Lee et al. Yongwon Lee et al. 2019.104309.

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Researchers in Korea propose graphene/Ni foam as Li metal storage medium for advanced batteries

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Researchers in Korea have developed three-dimensional monolithic corrugated graphene on nickel foam electrode as a Li metal storage framework in carbonate electrolytes. Therefore, hybrid engineering to prevent dendritic Li growth and increase the coulombic efficiency in highly reactive electrolytes is essential. —Kang et al.

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Nanjing researchers design new Li-rich layered cathode

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Researchers at Nanjing University (China) have introduced a new layered C2/m oxide—Li 2 Ni 0.2 Compared with Li 2 MnO 3 (LMO), LNMR displays superior capacity, a more stable capacity retention rate, higher energy density and average discharge voltage. In such materials, 1/3 of the TM sites are occupied by Li phase.

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MIT electrolyte enables ultra-high voltage Ni-rich cathodes in Li-metal batteries

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The electrolyte not only suppresses side reactions, stress-corrosion cracking, transition-metal dissolution and impedance growth on the cathode side, but also enables highly reversible Li metal stripping and plating on the lithium-metal anode (LMA), leading to a compact morphology and low pulverization. —Jeremiah Johnson.

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Researchers designs new deep eutectic solvent to recover valuable elements from spent LNCM batteries

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A team from Central South University in China has developed a new type of deep eutectic solvent (DES) that can efficiently leach metal elements from spent Ni-Co-Mn lithium-ion batteries (LNCM). The leaching rates of Ni, Co, Mn, and Li can all reach 99% under the conditions of T=140°C, t=10 min and no reductant.

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UMD team uses high concentration of LiFSI salt to suppress dendrite formation on Li-metal anode; paired with Ni-rich cathode

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of Li deposition and stripping, along with an anodic stability of >5.5 Pairing a Li-metal anode in this electrolyte with and LiNi 0.6 mAh/cm 2 ) created a NMC622||Li cell, which showed a high capacity retention of 86% after 100 cycles at a high cutoff voltage of 4.6 Pairing a Li-metal anode in this electrolyte with and LiNi 0.6

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PNNL team develops composite sulfur/Ni-MOF composite cathode for Li-S batteries showing excellent capacity retention

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Researchers at Pacific Northwest National Laboratory (PNNL) have used a novel Ni-based metal organic framework (Ni-MOF) significantly to improve the performance of Li-sulfur batteries by immobilizing polysulfides within the cathode structure through physical and chemical interactions at molecular level. Li-S anode work.

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