Nd掺杂Li4Ti5O12：高效锂离子电池的理想阴极材料

Lithium-ion
Anode
materials;
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在《国际电化学科学》(International Journal of Electrochemical Science)的一篇文章中，作者张茜和李喜研究了掺杂Nd的锂钛酸锂(Li4Ti5O12，简称LTO)作为锂离子电池的有效阴极材料。他们通过溶胶-凝胶法制备了这种新型的LTO，并对其结构和电化学性能进行了系统性地探讨。 研究发现，掺杂0.02% Nd的Li4Ti4.98Nd0.02O12表现出卓越的高倍率充放电性能，即使在高达10 C的电流密度下，依然保持了良好的稳定性和循环寿命。这一特性尤为显著，即便没有使用碳黑作为导电剂，Li4Ti4.98Nd0.02O12在5 C的速率下仍展现出出色的速率能力和循环能力。这种优异的高倍率性能可以归因于Nd掺杂带来的影响。Nd掺杂使得晶格常数增大，电子导电性得到提升，这可能是提升其电化学性能的关键因素。 Nd（钕）的掺杂对于LTO的性能优化起到了重要作用，因为它不仅提高了材料的导电性，还可能通过改变晶体结构来增强锂离子的扩散路径，从而降低内阻，使得电池在快速充放电过程中能够保持高效能。这对于寻求高能量密度和快速响应的锂离子电池应用来说具有重大意义。 该研究结果表明，Nd掺杂的Li4Ti5O12是一种有潜力的高性能阴极材料，特别是在需要高倍率充放电的电动汽车、无人机等应用中，它可能提供更长的使用寿命和更快的充电速度。因此，这项工作不仅对电池材料的研发有重要贡献，也为推动锂离子电池技术的发展提供了新的方向。未来的研究可能集中在进一步优化掺杂比例，以达到最佳性能，同时探索其他掺杂元素对LTO性能的影响。

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