Nano-flower array flexible air electrode material and preparation method and application thereof

A technology of air electrodes and nanoflowers, applied in the field of electrodes, can solve the problems of low conductivity limiting electrochemical performance, and achieve good cycle stability, good cycle performance, and excellent electrochemical performance.
CN108400342AInactive Publication Date: 2018-08-14CHENGDU UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU UNIVERSITY OF TECHNOLOGY
Publication Date
2018-08-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a nano-flower array flexible air electrode material. The preparation method comprises the steps of adding nickel acetate, cobalt acetate and sodium sulfide into deionized water for stirring to form a uniform mixed solution; performing hydrothermal reaction on the mixed solution and a carbon fabric; and cooling to a room temperature and taking out a product after reaction is ended, and obtaining CP grown with a CoNi2S4 nano-flower array. The nano-flower array flexible air electrode material has excellent mechanical strength stability and excellentelectrochemical performance including high return efficiency, favorable rate property and cycle stability.
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Description

technical field

[0001] The invention relates to the field of electrodes, in particular to a nanoflower array flexible air electrode material and a preparation method and application thereof. Background technique

[0002] Flexible electronics have grown in popularity in recent years because they can be bent, twisted, rolled or stretched to a certain degree and still maintain their functionality. At this stage, relatively complete flexible energy storage devices have become the main bottleneck in the research field. Lithium-ion batteries (LIBs) have recently been considered as the first choice in flexible power sources, but the low theoretical energy density of currently commercialized Li-ion batteries inherently limits their application in next-generation flexible devices. Fortunately, rechargeable lithium-oxygen (Li-O 2 ) battery due to its extremely high theoretical energy density (about 3600Wh·kg -1 ), has become one of the most promising electrochemical energy storage ...

Claims

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