Construction of uniform CuO nanoshells and its application in high-voltage cathode materials

IF 4.8 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Progress in Natural Science: Materials International Pub Date : 2024-08-01 DOI:10.1016/j.pnsc.2024.06.012

Xian-Sen Tao , Xianhong Li , En-Wei Hou , Zhongxuan Ma , Ke Yang , Jianping Ma , Jingquan Sha

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Abstract

CuO coating layers have attracted numerous attention due to its wide application in catalysis, batteries and other areas. However, the uncontrollable precipitation process of Cu²⁺ has made it challenging to form uniform CuO nanoshells. In this study, uniform CuO nanoshells were prepared through a delicate design. Namely, the uniform Cu²⁺-poly (m-phenylenediamine) (Cu-PmPD) nanoshells were constructed firstly, and then the organic parts in the Cu-PmPD were removed while uniform CuO nanoshells formed in the controllable calcination process. Applying this method to high-voltage cathode materials, the CuO was successfully coated on the LiNi_0·5Mn_1·5O_4, which greatly reduced the transition metal dissolution and improved the electrochemical performance in lithium-ion batteries.

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均匀氧化铜纳米壳的构建及其在高压阴极材料中的应用

由于 CuO 涂层在催化、电池和其他领域的广泛应用，CuO 涂层备受关注。然而，由于 Cu2+ 沉淀过程的不可控性，要形成均匀的 CuO 纳米壳具有很大的挑战性。本研究通过精细设计制备了均匀的 CuO 纳米壳。即首先构建均匀的 Cu2+-聚（间苯二胺）（Cu-PmPD）纳米壳，然后去除 Cu-PmPD 中的有机部分，在可控的煅烧过程中形成均匀的 CuO 纳米壳。将该方法应用于高压正极材料，成功地在 LiNi0-5Mn1-5O4 上包覆了 CuO，大大减少了过渡金属的溶解，提高了锂离子电池的电化学性能。

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来源期刊

Progress in Natural Science: Materials International 综合性期刊-综合性期刊

CiteScore

8.60

自引率

2.10%

发文量

2812

审稿时长

49 days

期刊介绍： Progress in Natural Science: Materials International provides scientists and engineers throughout the world with a central vehicle for the exchange and dissemination of basic theoretical studies and applied research of advanced materials. The emphasis is placed on original research, both analytical and experimental, which is of permanent interest to engineers and scientists, covering all aspects of new materials and technologies, such as, energy and environmental materials; advanced structural materials; advanced transportation materials, functional and electronic materials; nano-scale and amorphous materials; health and biological materials; materials modeling and simulation; materials characterization; and so on. The latest research achievements and innovative papers in basic theoretical studies and applied research of material science will be carefully selected and promptly reported. Thus, the aim of this Journal is to serve the global materials science and technology community with the latest research findings. As a service to readers, an international bibliography of recent publications in advanced materials is published bimonthly.