
Comprehensive understanding of Li/Ni intermixing in layered transition ...
2021年12月1日 · In this review, we briefly explain the driving forces that cause Li/Ni intermixing, analyze the benefits and disadvantages of Li/Ni intermixing in the performance and stability of …
Li/Ni Intermixing: The Real Origin of Lattice Oxygen Stability in Co ...
2023年12月21日 · In the Li/Ni intermixing configuration, the intermixed Ni ions can suppress the oxidation of lattice oxygen by increasing the formation energy of oxygen vacancy and reducing …
Ni/Li Disordering in Layered Transition Metal Oxide: …
2019年6月10日 · Layered lithium transition metal (TM) oxides, in particular, Li (Ni x Mn y Co z)O 2 (NMC, x + y + z = 1) are the most promising candidates as cathode materials with the potential …
原位中子衍射揭示Li/Ni反位缺陷动态演化及其与阴离子氧化还原反 …
2024年8月8日 · 近日,松山湖材料实验室赵恩岳和赵金奎研究员团队利用原位中子衍射技术定量分析了材料中Li/Ni反占位缺陷的动态演化过程,及其与阴离子氧化还原反应之间的耦合关系。
Cooperative structure of Li/Ni mixing and stacking faults for …
2024年8月1日 · In this work, we introduce cross-scale and cooperative defective structures of Li/Ni mixing and stacking faults into a Co-free LLO. High Li/Ni mixing defects can induce more …
Tuning Li-excess to optimize Ni/Li exchange and improve
2022年7月5日 · Ni/Li exchange is a detrimental effect on electrochemical performances for high-Ni cathode materials (LiNi x Co y Mn z O 2, x ≥ 0.6). Adjusting Li-excess degree has been …
Intrinsic Role of Cationic Substitution in Tuning Li/Ni Mixing in …
2019年3月7日 · Results from this study elucidate the role of Co/Mn-substitution in tuning Li/Ni ordering, intrinsically through local magnetic interaction. Specifically, Co substitution facilitates …
Tuning Li occupancy and local structures for advanced Co-free Ni …
2025年3月5日 · Here, a comprehensive analysis reveals different Li occupancies and related structural domains (Ni/Li exchange, Li a XO b, Li/Mn/X (Ni) ordering domains, X = Nb 5+, W …
学院在锂离子电池层状材料原子反位机理取得重要进展-北京大学新 …
层状正极材料是锂离子电池领域最为广泛研究和应用的一种材料,如传统的三元层状材料和近来引起热点研究兴趣的富锂锰层状材料。 在层状材料中,过渡金属元素NiCoMn发挥着不能的功能 …
通过“非侵入式”策略抑制不对称 Li/Ni 混合,优化 NCM811 富镍正 …
In this paper, a “non-invasive” structural optimisation strategy is proposed to improve the structural stability of LiNi. Inspired by the co-precipitation process, this study incorporates …