2020年6月16日 · Major X-ray diffraction (XRD) reflections in Fig. 1b can be indexed as R - 3m space group (JCPD, 09-0063), which is in good agreement with the hexagonal α -NaFeO 2 type crystal structure 21....

Nickel-rich cathode LiNi0.83Co0.11Mn0.06O2 (NCM) has a high specific discharge capacity and low cost, and is a very promising cathode material. However, NCM exhibits poor structural and...

近日, 韩国汉阳大学的Chong S. Yoon和Yang-Kook Sun等人系统地比较了一系列粒径约3 μm的单晶富镍Li[NixCoyMn1-x-y]O2(NCM)正极(x=0.7、0.8和0.9)和相同镍含量的多晶NCM。单晶NCM正极虽然具有较高的抗微裂纹性能，但其容量和循环稳定性方面均不如多晶NCM正极。

2023年1月1日 · Here, we investigate the dominant mechanism of nonlinear capacity fading of Ni-rich electrode materials under different charge-discharge rates. Despite the high initial discharge capacity of low-rate charge-discharge, the cumulative release of stress at the end of the cycle may rapidly reduce its capacity.

日本住友金属矿业株式会社Yuki Koshika、Haruki Kaneda等人利用Mn基材料的形貌受到Mn的价态影响的特性，结合NMC材料易被氧化的性质，通过控制共沉淀过程中的氧含量，合成了具有不同形貌的前驱体并制备成相应的LiNi0.35Mn0.30Co0.35O2正极材料，结合了理论模拟揭示了NMC正极材料形貌与电化学性能的关系。

The XRD patterns of the NCM622 samples with different sintering temperatures are shown in Figure 2. All of the peaks are well indexed to a hexagonal α-NaFeO2 structure (space group: R-3m), and...

2024年3月5日 · Nickel-rich layered oxide LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811), as an attractive next-generation cathode material for lithium-ion batteries, still encounters grievously poor cycling stability triggered by irreversible phase transition in the …

Powder X-ray diffraction (XRD, XRD-6100, SHIMADZU, Japan) was performed with Cu K ␣ to identify the structure and crystalline phase of the precursors and as-prepared compounds.

2025年3月4日 · Single crystalline nickel rich Li [NixCoyMn1-x–y]O2 (SCNCM) layered oxide cathodes show higher ionic conductivity and better structure integrity than polycrystalline NCM (PCNCM) cathodes by eliminating grain boundaries. However, it remains challenges in the controlled synthesis process and restricted cycling stability of SCNCM. Herein, take single crystalline nickel rich Li [Ni0.8Co0.1Mn0.1 ...

勾选参数要及时保存，才可运行； 2. 手动修改PCR文件时，要重新导入文件，否则修改选项不会保存； 3. 在修正W之前，可copy一份PCR保存，在发散不可逆替换即可。 01. Scale. 依据之前推文的大致顺序，先进行Scale修正； 02．Cell. 晶胞参数 的正确性与否对于后面的峰型函数参数修正及其重要，一定要确保晶胞参数的准确性。 03. Zero. 仪器零点一般与晶胞参数一起修正。 04. Bac. 这里选用的是外插的手动背底。 对于手动背底，不要过度的扣除，可以先选择一个大致的 …