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 …
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 …
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 …
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 …
Effect of sintering temperature on Li/Ni mixing and ... - Springer
3 天之前 · High-nickel layered oxide LiNi x Co y Mn z O 2 (where x + y + z = 1 and x ≥ 0.6) has emerged as a primary focus in research on power battery cathode materials, owing to its high …
北京大学新材料学院潘锋团队锂电池正极材料Li/Ni反位综述
2019年6月24日 · 研究内容：本文对层状过渡金属氧化物LiTMO2 (TM=Ni,Mn,Co,or NixMnyCoz,x+y+z=1) 中的 Ni/Li 反位现象，从电化学影响、出现的原因和控制的方法三个角度 …
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 …
Role of Superexchange Interaction on Tuning of Ni/Li Disordering …
2017年10月31日 · Using extensive ab initio calculations combined with experiments, here we report that a superexchange interaction between transition metals plays a dominating role in …