P2-type Na[Formula: see text]Ni[Formula: see text]Mn[Formula: see text]TixO2[Formula: see text] have been synthesized as cathode materials for sodium-ion batteries, and the effect of Ti substitution on the structural evolution and electrochemical properties of Na[Formula: see text]Ni[Formula: see text]Mn[Formula: see text]O2 are investigated in detail. Analysis results indicate that an appropriate substituted amount of Mn with Ti in the MO2 layers effectively stabilize the crystal lattice of these layered electrodes during the Na[Formula: see text] insertion/extraction process, which significantly improves their electrochemical performances between 2.5 and 4.4[Formula: see text]V. The discharge/charge patterns and in situ X-ray diffraction measurements expound the successful suppression of Na[Formula: see text]/vacancy ordering and multiphase transition during the de-sodiation/sodiation process to resist the structure-induced degradation, which provide possible guidelines for exploring high performances sodium-ion batteries.

中文翻译：

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钛替代对提高钠离子储存用P2-Na0.67Ni0.33Mn0.67O2正极材料电化学性能的贡献

P2型Na[分子式：见正文]Ni[分子式：见正文]Mn[分子式：见正文]TiX○2[公式：见正文]已合成钠离子电池正极材料，Ti取代对Na结构演变和电化学性能的影响[公式：见正文]Ni[公式：见正文]Mn[公式：见正文]O2进行了详细调查。分析结果表明，在 MO 中，适量的 Mn 被 Ti2层在Na [公式：见文本]插入/提取过程中有效地稳定了这些层状电极的晶格，这在2.5和4.4之间显着提高了它们的电化学性能[公式：见文本] V。放电/充电模式和原位 X 射线衍射测量阐明了在去钠/钠化过程中成功抑制 Na[公式：见正文]/空位排序和多相转变，以抵抗结构诱导的降解，这提供了可能探索高性能钠离子电池的指南。