CN111653768A - 一种NiO/Ni多孔微球的制备方法 - Google Patents

一种NiO/Ni多孔微球的制备方法 Download PDF

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CN111653768A
CN111653768A CN202010449582.7A CN202010449582A CN111653768A CN 111653768 A CN111653768 A CN 111653768A CN 202010449582 A CN202010449582 A CN 202010449582A CN 111653768 A CN111653768 A CN 111653768A
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CN111653768B (zh
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文伟
耿超
吴进明
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Hainan University
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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Abstract

本发明公开一种NiO/Ni多孔微球的制备方法。步骤包括：将醋酸镍和水合肼加入去离子水中，水合肼和醋酸镍的物质的量之比为2:1，充分搅拌后于400℃加热15min，得到NiO/Ni多孔微球。本发明制备方法较简单，所制备的材料为NiO/Ni复合材料，具有球状外形和多孔结构。

Description

一种NiO/Ni多孔微球的制备方法
技术领域
本发明涉及NiO/Ni多孔微球的制备方法，适合于锂离子电池负极材料等领域。
背景技术
NiO纳米材料在催化、锂离子电池等领域具有潜在的应用前景。NiO的电化学性能主要取决于其成分和微结构。作为锂离子电池负极时，NiO的电导率较低，导致倍率性能较差。在NiO电极材料中复合金属Ni纳米颗粒可提高电极整体的电导率；多孔结构有利于电解质的迁移和浸润；球形结构有利于获得较高的堆积密度。因此，NiO/Ni多孔微球的低成本快速制备技术具有重要应用前景。
发明内容
本发明的目的是提供一种NiO/Ni多孔微球的制备方法。
本发明的NiO/Ni多孔微球的制备方法，其步骤如下：
将醋酸镍和水合肼加入去离子水中，水合肼和醋酸镍的物质的量之比为2:1，充分搅拌后于400℃加热15min，得到NiO/Ni多孔微球。
本发明的NiO/Ni复合材料具有球状外形和多孔结构，制备过程简单，有望用于锂离子电池负极材料等领域。
附图说明
图1为NiO/Ni多孔微球的X射线衍射图谱；
图2为NiO/Ni多孔微球的扫描电子显微镜照片；
图3为NiO/Ni多孔微球的透射电子显微镜照片。
具体实施方式
以下结合实施例进一步阐述本发明，但本发明不仅仅局限于下述实施例。
实施例1
将1.25g四水合醋酸镍(C4H6NiO4·4H2O)和0.6g质量分数为85％的水合肼(H4N2·H2O)溶液加入10mL去离子水中，搅拌1h后，再置于400℃的马弗炉中加热15min后取出。图1为所得样品的X射线衍射图谱，经与标准卡片对比可知，样品为NiO与Ni的混相结构。图2为所得样品的扫描电子显微镜照片，可以看出，样品具有球形结构，直径为几百纳米，且从部分微球上可以看到开口的结构。图3为所制样品的透射电子显微镜照片，可以看出，样品具有中空结构，进一步验证了其多孔结构。

Claims (1)

1.一种NiO/Ni多孔微球的制备方法，其步骤如下：
将醋酸镍和水合肼加入去离子水中，水合肼和醋酸镍的物质的量之比为2:1，充分搅拌后于400℃加热15min，得到NiO/Ni多孔微球。
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* Cited by examiner, † Cited by third party
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US20080193841A1 (en) * 2005-04-01 2008-08-14 Yang Kook Sun Layered Core-Shell Cathode Active Materials For Lithium Secondary Batteries, Method For Preparing Thereof And Lithium Secondary Batteries Using The Same
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CN102757101A (zh) * 2012-02-22 2012-10-31 太原理工大学 一种大比表面积多孔氧化镍微球的制备方法
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CN107469789A (zh) * 2017-07-25 2017-12-15 东莞市联洲知识产权运营管理有限公司 一种放射状多级孔结构的石墨烯/氢氧化镍/聚合物复合微球及其制备方法和应用
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