Tuning of aluminum concentration distribution in high nickel cathode particles for lithium ion batteries

Comparative study of polycrystalline and single-crystal NCM811 cathode materials: the role of crystal defects in electrochemical performance

“…3b, all samples demonstrate the typical diffraction peaks of a hexagonal layered α-NaFeO 2 structure, with the R 3̄ m space group, indicating good crystallinity. 49 The oxygen atoms in this structure form tightly arranged cubes centered on the face with a clear separation of the (006)/(012) and (018)/(110) peaks, supporting the formation of an ordered layered structure in all samples. 50 The non- in situ XRD fitted profiles of the major peaks in Fig.…”

Surface-Modified Quaternary Layered Ni-Rich Cathode Materials by Li2ZrO3 for Improved Electrochemical Performance for High-Power Li-Ion Batteries

“…Elemental substitution in LiNi 1– y M y O 2 species (M = Co, Mn, Al, and Mg) has helped to mitigate these problems to a degree, with LiNi 1– x – y Co x Mn y O 2 and LiNi 1– x – y Co x Al y O 2 species becoming popular and effective cathode materials. , The presence of Mn 4+ cations strengthen the structure, while Co 3+ cations subdue the disordering of Ni 2+ and Li + cations. Recent studies have suggested that the presence of Al, Zr, or Mo cations plays a significant role in minimizing the Jahn–Teller distortion of Ni 3+ cations. , Thus, a cathode material incorporating the important elements Ni and Co along with Mn and Al atoms should be able to exploit the advantages of each metal and would therefore be a potential candidate cathode for high-power, high-energy applications .…”

“…16,17 Elemental substitution in LiNi 1−y M y O 2 species (M = Co, Mn, Al, and Mg) has helped to mitigate these problems to a degree, with LiNi 1−x−y Co x Mn y O 2 and LiNi 1−x−y Co x Al y O 2 species becoming popular and effective cathode materials. 18,19 The presence of Mn 4+ cations strengthen the structure, while Co 3+ cations subdue the disordering of Ni 2+ and Li + cations. Recent studies have suggested that the presence of Al, Zr, or Mo cations plays a significant role in minimizing the Jahn− Teller distortion of Ni 3+ cations.…”