Calcium sheet Cu2S-Ni7S6 compound negative electrode material and preparation method and application thereof

The invention relates to a calcium flaky Cu2S-Ni7S6 compound negative electrode material and a preparation method and application thereof.The preparation method comprises the following steps that foamed nickel, foamed copper and a copper sheet are placed in a thiourea mixed solution prepared from ab...

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Bibliographische Detailangaben
Hauptverfasser:	JUNG SAE-ROM, WANG, WEIBO, TAN LONG, BI WENJING, ZHANG TONG, MA BOJIANG, CHU XIAOKE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ELECTRICITY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES NANOTECHNOLOGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to a calcium flaky Cu2S-Ni7S6 compound negative electrode material and a preparation method and application thereof.The preparation method comprises the following steps that foamed nickel, foamed copper and a copper sheet are placed in a thiourea mixed solution prepared from absolute ethyl alcohol and deionized water, through solvothermal reaction, the foamed nickel serves as a nickel source, the foamed copper and the copper sheet serve as copper sources, and the calcium flaky Cu2S-Ni7S6 compound negative electrode material is obtained under thiourea etching; nickel ions and copper ions enter the solution to be combined with sulfur ions, and the copper sheet loaded calcium sheet-shaped Cu2S-Ni7S6 compound is generated. The compound has a unique and novel three-dimensional layered composite structure, the lower layer is a calcium sheet-shaped nanobelt array with a rough surface, and the upper layer is in a coralline shape composed of a large number of particles. Due to the synergistic eff