Preparation method and application of two-phase synergistic nickel hydroxide electrode material

An electrode material, nickel hydroxide technology, applied in the field of energy storage, can solve problems such as poor cycle stability, and achieve the effects of high specific capacity, low cost, and good cycle performance
CN112408505AInactive Publication Date: 2021-02-26NANCHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANCHANG UNIV
Publication Date
2021-02-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method and application of a two-phase synergistic nickel hydroxide electrode material. The method comprises the following steps: using a nickel salt to prepare anaqueous solution of the nickel salt; adding a certain amount of ammonium molybdate tetrahydrate under a stirring condition, adjusting the pH value by using ammonia water after the solid phase is completely dissolved, and carrying out hydrothermal reaction to obtain a green precipitate; and finally, conducting drying and grinding to obtain a flower-like nickel hydroxide electrode material. The high-performance nickel hydroxide electrode material is obtained through a simple hydrothermal method, wherein ammonium molybdate tetrahydrate has important influence on the morphology and phase composition of nickel hydroxide in the hydrothermal process. The preparation method is simple in preparation process, low in cost, environmentally friendly, excellent in product electrochemical performance and good in cycle performance, and the prepared nickel hydroxide nano material can be applied to the fields of super capacitors, batteries and the like.
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Description

technical field

[0001] The invention relates to the field of energy storage, in particular to a preparation method and application of a two-phase synergistic nickel hydroxide electrode material. Background technique

[0002] With the rapid development of science and technology, the demand for energy is also increasing. However, due to the limitation and non-renewability of traditional fossil energy, human beings urgently need to seek clean, efficient and sustainable energy, such as solar energy and wind energy. The development of new energy storage devices is of great significance to the utilization and development of renewable energy. Supercapacitors have many advantages such as high power density, fast charge and discharge capability, long cycle life and environmental protection. At present, the anode materials of supercapacitors are mainly carbon materials, and the commercial anode materials are mainly graphite, with single materials and little difference in performance...

Claims

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