JMAT期刊上新啦！固态离子材料特刊

固态离子材料特刊

Solid-state ionic materials for critical applications

 Authors: Yunhui Huang, Arumugam Manthiram, B.V.R. Chowdari

Volume 5, Issue 2

   近年来，固态离子材料因其在便携式电子设备，电动汽车，大型储能等领域的广泛应用而备受关注。 为了介绍固态离子的最新进展，Journal of Materiomics推出了固态离子材料特刊。该特刊涉及的主题广泛，包括锂离子电池的电极材料、隔膜和固态电解质，质子交换膜燃料电池（PEMFC）的质子传导，固体氧化物燃料电池（SOFCs）中使用的电极和膜，碳基微型超级电容器和传感器。

关于锂离子电池的电极材料……

 For the cathode materials, Li et al. developed a Sn/K co-doped Li-rich layered oxides (i.e., Li_1.19K_0.01Mn_0.51Sn_0.03Ni_0.13Co_0.13O₂) to address the poorly intrinsic rate performance. The theoretical simulation and experimental results show that the improved rate performance is ascribed to the enlarged crystal lattices, which offer smooth diffusion tunnels for Li ions between transition metal layers.(https://www.sciencedirect.com/science/article/pii/S2352847818301989)

关于正极材料，Li等研发了Sn/K共掺杂富含Li的层状氧化物（比如：Li_1.19K_0.01Mn_0.51Sn_0.03Ni_0.13Co_0.13O₂），以解决本征低倍率性能。理论模拟和实验结果表明：晶格膨胀使得倍率性能得到了提升，因为锂离子在过渡金属层之间更容易扩散。

For the anode materials, Zheng and co-workers investigated Si-based anode via discovering the correlation between the key physical parameters and electrochemical properties, and found that the spherical size in 100  nm and the presence of appropriate content of -OH group are desirable for excellent performance.(https://www.sciencedirect.com/science/article/pii/S2352847818301552)

关于负极材料，Zheng及其研究团队通过探究关键物理参数和电化学性能之间的关系研究了硅基负极材料，并且发现当负极材料由带有适量-OH基团的100 nm球形颗粒组成时，电化学性能最为理想。

The Li metal anode with an ultrahigh specific capacity and a low redox potential has attracted recent research attention. Li et al. developed a novel composite Li anode for improved performance, in which metallic lithium was incorporated into three-dimensional Ni porous foam, then the surface of the composite was coated by ZnF₂ film. This strategy combining bulk modification with surface coating of Li anode leads to an excellent electrochemical performance.(https://www.sciencedirect.com/science/article/pii/S2352847818301679)

金属锂负极具有超高的比容量和较低的氧化还原电势，因而近年来受到了广泛的关注。Li等研发了一种新型锂复合物，即将金属锂和三维镍多孔泡沫复合，然后在表面镀覆ZnF₂薄膜。该方法结合了整体改性和表面镀覆，极大地提高了锂负极的电化学性能。

关于隔膜材料……

Separator is vital to the safety and the performance of LIBs, which the behaviors can be efficiently improved via functionalization. Wang et al. developed a polydopamine-based redox-active separator that can provide an additional capacity to that of typical anode material, increase the volumetric capacity of the cell, and simultaneously decrease the cell resistance to yield a higherrate capability of the battery.(https://www.sciencedirect.com/science/article/pii/S2352847818301291)

隔膜对于锂离子电池的安全性和性能至关重要，通过官能化可以有效提高其性能。Wang等研发了一种多聚多巴胺基氧化还原活性隔膜，可以给典型的负极材料提供额外的容量，增加电池的体积容量，同时降低电池的阻抗，从而电池具有较高的倍率性能。

关于固态电池……

To develop the high-safety SSBs, nonflammable solid-state electrolyte (SSE) is the key point. Wang et al. prepared a series of comb-like solid polymer electrolyte membranes by a solvent-free UV-cured method, and further employed them in ambient temperature all-solid-state lithium batteries. LiFePO₄/Li coin cells and soft pack batteries both exhibit superior rate capability and cyclic performances due to the high ionic conductivity and stability against lithium metal of the obtained solid polymer electrolyte.(https://www.sciencedirect.com/science/article/pii/S2352847818301503)

为了研发具有高安全性的固态电池，不可燃固态电解质是关键。Wang等采用无溶剂紫外光固化法制备了一系列梳状固态聚合物电解质膜，并进一步将这种材料应用于室温下工作的全固态电池。LiFePO₄/Li纽扣电池和软包电池均表现出优异的倍率性能和循环性能，归因于这种固态聚合物电解质对于金属锂具有高离子电导性和稳定性。

Liu et al. prepared a novel composite gel polymer electrolyte with a semi-interpenetrating network (Cs-IPN) structure. The Cs-IPN electrolyte exhibits a great ionic conductivity, a high mechanical strength and an excellent safety performance. The advantage like efficient, environmentally friendly and simple process can be achieved in the ultraviolet-cured process.(https://www.sciencedirect.com/science/article/pii/S2352847818301461)

Liu等制备了一种新型凝胶聚合物电解质，具有半交联网络(Cs-IPN)结构。Cs-IPN电解质具有良好的离子电导性、高机械强度和优异的安全性。因为采用了紫外光固化法，也具有高效、环境友好和简单易行的优点。

Garnet-type ceramic electrolyte with an exceptionally high Li⁺ conductivity has attracted wide interest for the development of safe electrochemical devices. Wen and co-workers investigated low-cost compounds like Li₅AlO₄, Li₂TiO₃ and Li₂SiO₃ for substitution of the mother powder for compensating Li-loss during the sintering of garnet. (https://www.sciencedirect.com/science/article/pii/S2352847818300765)

石榴石型陶瓷电解质具有超高的锂离子电导性，因而引发了众多学者研发安全电化学器件的兴趣。Wen等用低成本化合物，如Li₅AlO₄, Li₂TiO₃和Li₂SiO₃，替代原粉末为弥补石榴石烧结过程中锂的损失。

Wei, et al. integrated the direct experimental evidences to reveal the intrinsic effects on the ionic migration garnet. (https://www.sciencedirect.com/science/article/pii/S235284781830131X)

Wei等结合实验数据，揭示了石榴石离子迁移的内在影响因素。

For thin film SSB, Xia et al. developed a facile fabrication of vertically aligned oxygen-deficient α-MoO_3-x nanoflake arrays (3D MO_x) using metal Mo target via direct current magnetron sputtering.The three-dimensional thin film batteries (3D TFBs) based on 3D MO_x, LiPON solid electrolyte and lithium thin film anode exhibit enhanced specific capacities, rate performance, and cycle performance, compared to the 2D TFB.(https://www.sciencedirect.com/science/article/pii/S2352847818301655)

对于固态电池薄膜，Xia等采用了一种简便的以金属钼为靶材的直流磁控溅射法，制备出垂直排列的氧空位α-MoO_3-x纳米片层阵列(3D MO_x)。相比于二维薄膜电池，由三维MO_x,LiPON固态电解质和锂薄膜负极构成的三维薄膜电池(3D TFBs)的比容量、倍率性能和循环性能都有所提高。

关于燃料电池的离子电导率……

关于超级电容器和传感器……

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好消息！

     2018年的Journal of materiomics的citescore公布啦！又涨啦！由2017年的6.52涨到了8.02！

     最后再向大家介绍一下我们闪亮亮的JMAT期刊。它的全称是Journal of　Materiomics，是由中国硅酸盐学会和Elsevier合作出版的英文期刊,现已在ScienceDirect上发布了第五卷第2期（2019年），点击文末“阅读全文“可自由获取所有论文全文。

   Journal of Materiomics 为同行评议期刊,被web of science和scopus收录，截至目前，最新cite score为8.02，从投稿到在线出版一般只需60天，并且对作者免收发表费！投稿说明详见https://www.journals.elsevier.com/journal-of-materiomics/, 期望大家不吝赐稿。

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