Bimetallic sulfides have been found to improve the overall function of anode materials in lithium-ion capacitors
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Update time : 2024-01-31 14:25:22
Compared with the use of transition metal sulfides and carbon fiber materials, when bimetallic sulfides (especially ZnS/CuS) are incorporated into the design of flexible lithium-ion capacitors, their electrochemical stability and performance are significantly improved.
Technology is increasingly integrated with daily life, exceptionally wearable and flexible technologies and smart devices. Transition metal sulfide (TMS) materials are commonly used as anode materials in the development of adjustable lithium-ion capacitors (FLICs), but their theoretical performance cannot be achieved in practice. Researchers seeking change have developed zinc sulfide nanoparticles that can be embedded in multi-channel carbon fibers (CF) to enhance the performance of FLICs.
(Zinc Sulfide)
Researchers have used solution blow spinning to address the challenges of traditional powder electrodes, which can produce fiber sheets with high porosity and large surface area. Subsequently, vulcanization is carried out by adding sulfur ions to the material.
The obtained material is a multi-channel carbon fiber embedded with ZnS/CuS nanoparticles. This material exhibits lower charge transfer and ion diffusion resistance, as well as improved high specific capacity and rate capacity. By combining mixed metal sulfides with FLIC, the energy and power density have been enhanced.
When zinc and other metals combine with sulfides, the formation of high-capacity anodes by combining with carbon fibers has a good record. Their high activity levels can lead to faster reactions, which is an essential area for improving FLIC.
In addition to improving material properties, the structure of the carbon fiber network also reduces the opportunity for nanoparticle aggregation, which helps maintain consistency in cycling and stability.
Carbon fiber acts as a conductive network and 3D matrix, adapting to volume expansion and maximizing the high-capacity properties of ZnS and CuS nanoparticles. This enhances the specific capacity and cycling stability of CF-based harmful electrode materials. Zinc sulfide powder is a white powder with good chemical stability and alkali resistance. It is insoluble in water, organic solvents, weak acids, and weak bases and, therefore, has a wide range of applications in many fields.
The widespread application of zinc sulfide powder
Chemical production: Zinc sulfide is mainly used in paint and plastics in chemical production. Due to its white opacity and insolubility in water, organic solvents, weak acids, and weak bases, it has become an essential pigment in paint. Zinc sulfide can also be used as a filler and reinforcing agent for plastics, improving the strength, wear resistance, heat resistance, and other properties of materials.
Fluorescent materials: Zinc sulfide powder has high luminous efficiency and stability and can be used to manufacture fluorescent materials such as fluorescent lamps, displays, lasers, etc. In fluorescent lamps, zinc sulfide can absorb energy and transfer it to fluorescent substances, thereby emitting fluorescence of different colors.
Catalyst: Zinc sulfide powder can be used as a catalyst for specific chemical reactions, such as alcohol dehydration reactions, alkylation reactions, etc. In these reactions, zinc sulfide powder can accelerate the rate of chemical reactions and improve the selectivity of the products.
(Zinc Sulfide)
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