Fe2+ doped Fe0.8Ti1.2O40.8- nanosheets were firstly utilized as a lithium ion battery anode. The Fe2+ was introduced into the Fe0.8Ti1.2O40.8- nanosheets using a photoreduction method. The introduction of Fe2+ enhanced the electrical conductivity of the material, as well as the specific capacity.
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http://dx.doi.org/10.1039/c8cc06874g | DOI Listing |
Angew Chem Int Ed Engl
January 2025
Fudan University, 2005 Huhu Rd, Shanghai, CHINA.
All-solid-state lithium metal batteries are regarded as next-generation devices for energy storage due to their safety and high energy density. The issues of lithium dendrites and poor mechanical compatibility with electrodes present the need for developing solid-state electrolytes with high stiffness and damping, but it is a contradictory relationship. Here, inspired by the superstructure of tooth enamel, we develop a composite solid-state electrolyte composed of amorphous ceramic nanotube arrays intertwined with solid polymer electrolytes.
View Article and Find Full Text PDFJ Colloid Interface Sci
January 2025
School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001 China. Electronic address:
Nickel-rich cobalt-free layered oxide cathode with Ni contents no fewer than 90 % has received extensive attention in the field of lithium-ion batteries due to its excellent specific capacity and low cost, but serious capacity degeneration induced by structural deterioration and interfacial instability greatly hamper their further development. Herein, the Sb-modified LiNiMnO materials from the interface to interior have been designed and fabricated to overcome the above issues. On the one hand, the introduction of Sb-ion in interior of grains can generate Sb-O chemical bond with high dissociation energy, which contributes to reinforce the chemical and structural stability.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2025
Institute for Electrochemical Energy Storage (CE-IEES), Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany.
Sn-based electrodes are promising candidates for next-generation lithium-ion batteries. However, it suffers from deleterious micro-structural deformation as it undergoes drastic volume changes upon lithium insertion and extraction. Progress in designing these materials is limited to complex structures.
View Article and Find Full Text PDFChem Asian J
January 2025
University of Queensland, School of Chemical Engineering, AUSTRALIA.
The activation mechanism of Li-rich cathode has been discussed for many years, yet there is still debate on different theories. Potassium doping can assist the investigation on activation mechanism through its unique function in terms of blocking TM migration during activation. K-doping works by occupying Li sites even after Li has been extracted, increasing stability by blocking transition metals from migrating into these sites, which can help us distinguish the pathway of activation.
View Article and Find Full Text PDFSmall
January 2025
Faculty of Maritime and Transportation, Ningbo University, Ningbo, 315211, P. R. China.
Traditional hydrometallurgy methods for recycling the spent lithium-ion battery materials face some challenges, including the complex processes, and difficulties in separating Ni/Co/Mn. To address these issues, this work proposes a simple one-pot method to achieve a high Li leaching efficiency (99.2%) and simultaneously transform the majority of Ni (99.
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