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Sodium Niobate with a Large Interlayer Spacing: A Fast-Charging, Long-Life, and Low-Temperature Friendly Lithium-Storage Material
Advanced Science ( IF 14.3 ) Pub Date : 2023-04-29 , DOI: 10.1002/advs.202300583 Jiazhe Gao 1, 2 , Liting Yang 1 , Cihui Huang 2, 3 , Guisheng Liang 1 , Yi Lei 2 , Songjie Li 2 , Wenze Wang 2 , Yinjun Ou 2 , Shangfu Gao 1 , Xuehua Liu 2 , Yifeng Cheng 4 , Jincang Zhang 4 , Zhongzhu Liu 5 , Aiming Guo 5 , Robson Monteiro 6 , Luanna Parreira 6 , Rogerio Ribas 6 , Chunfu Lin 1, 2 , Limin Wu 7 , Renchao Che 1, 4
Advanced Science ( IF 14.3 ) Pub Date : 2023-04-29 , DOI: 10.1002/advs.202300583 Jiazhe Gao 1, 2 , Liting Yang 1 , Cihui Huang 2, 3 , Guisheng Liang 1 , Yi Lei 2 , Songjie Li 2 , Wenze Wang 2 , Yinjun Ou 2 , Shangfu Gao 1 , Xuehua Liu 2 , Yifeng Cheng 4 , Jincang Zhang 4 , Zhongzhu Liu 5 , Aiming Guo 5 , Robson Monteiro 6 , Luanna Parreira 6 , Rogerio Ribas 6 , Chunfu Lin 1, 2 , Limin Wu 7 , Renchao Che 1, 4
Affiliation
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Niobate Li+-storage anode materials with shear ReO3 crystal structures have attracted intensive attention due to their inherent safety and large capacities. However, they generally suffer from limited rate performance, cyclic stability, and temperature adaptability, which are rooted in their insufficient interlayer spacings. Here, sodium niobate (NaNb13O33) micron-sized particles are developed as a new anode material owning the largest interlayer spacing among the known shear ReO3-type niobates. The large interlayer spacing of NaNb13O33 enables very fast Li+ diffusivity, remarkably contributing to its superior rate performance with a 2500 to 125 mA g−1 capacity percentage of 63.2%. Moreover, its large interlayer spacing increases the volume-accommodation capability during lithiation, allowing small unit-cell-volume variations (maximum 6.02%), which leads to its outstanding cyclic stability with 87.9% capacity retention after as long as 5000 cycles at 2500 mA g−1. Its cyclic stability is the best in the research field of niobate micron-sized particles, and comparable to that of “zero-strain” Li4Ti5O12. At a low temperature of −10 °C, it also exhibits high rate performance with a 1250 to 125 mA g−1 capacity percentage of 65.6%, and even better cyclic stability with 105.4% capacity retention after 5000 cycles at 1250 mA g−1. These comprehensively good electrochemical results pave the way for the practical application of NaNb13O33 in high-performance Li+ storage.
中文翻译：
大层间距铌酸钠：快充、长寿命、低温友好的储锂材料
具有剪切ReO 3晶体结构的铌酸锂+存储负极材料由于其固有的安全性和大容量而引起了广泛的关注。然而，它们通常受到有限的倍率性能、循环稳定性和温度适应性的影响，这是根源于它们的层间距不足。这里，铌酸钠（NaNb 13 O 33 ）微米级颗粒被开发为一种新型负极材料，在已知的剪切ReO 3型铌酸盐中拥有最大的层间距。 NaNb 13 O 33的大层间距使其具有非常快的Li +扩散率，这极大地有助于其优异的倍率性能，2500至125 mA g -1的容量百分比为63.2%。此外，其大的层间距增加了锂化过程中的体积调节能力，允许较小的晶胞体积变化（最大6.02%），这导致其出色的循环稳定性，在2500 mA下长达5000次循环后容量保持率为87.9% g -1 。其循环稳定性是铌酸盐微米级颗粒研究领域中最好的，可与“零应变”Li 4 Ti 5 O 12相媲美。在-10 °C低温下，它还表现出高倍率性能，1250至125 mA g -1容量百分比为65.6%，并且具有更好的循环稳定性，在1250 mA g -1循环5000次后容量保持率为105.4% 。这些综合良好的电化学结果为NaNb 13 O 33在高性能Li +存储中的实际应用铺平了道路。
更新日期：2023-04-29
中文翻译：
大层间距铌酸钠：快充、长寿命、低温友好的储锂材料
具有剪切ReO 3晶体结构的铌酸锂+存储负极材料由于其固有的安全性和大容量而引起了广泛的关注。然而，它们通常受到有限的倍率性能、循环稳定性和温度适应性的影响，这是根源于它们的层间距不足。这里，铌酸钠（NaNb 13 O 33 ）微米级颗粒被开发为一种新型负极材料，在已知的剪切ReO 3型铌酸盐中拥有最大的层间距。 NaNb 13 O 33的大层间距使其具有非常快的Li +扩散率，这极大地有助于其优异的倍率性能，2500至125 mA g -1的容量百分比为63.2%。此外，其大的层间距增加了锂化过程中的体积调节能力，允许较小的晶胞体积变化（最大6.02%），这导致其出色的循环稳定性，在2500 mA下长达5000次循环后容量保持率为87.9% g -1 。其循环稳定性是铌酸盐微米级颗粒研究领域中最好的，可与“零应变”Li 4 Ti 5 O 12相媲美。在-10 °C低温下，它还表现出高倍率性能，1250至125 mA g -1容量百分比为65.6%，并且具有更好的循环稳定性，在1250 mA g -1循环5000次后容量保持率为105.4% 。这些综合良好的电化学结果为NaNb 13 O 33在高性能Li +存储中的实际应用铺平了道路。
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