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Aplicação de nanomateriais

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Aplicação de nanomateriais

The use of nano silicon wire SiNWs as negative electrode materials in batteries

May 18,2023.

As a typical representative of one-dimensional nanomaterials, silicon nanowires not only possess the special properties of semiconductors, but also exhibit physical properties such as field emission, thermal conductivity, and visible photoluminescence that differ from bulk silicon materials. They have enormous potential application value in nanoelectronic devices, optoelectronic devices, and new energy sources. More importantly, silicon nanowires have excellent compatibility with existing silicon technologies and thus have great market application potential. Therefore, silicon nanowires are a highly promising new material in the field of one-dimensional nanomaterials.

Product name: Silicon Nanowire
Molecular formula: SiNWs
Diameter: 100-200nm
Length:>10um
Purity: 99%
Appearance: yellow brown
Silicon nanowires are also important materials for semiconductor biosensors. Silicon nanowires, as an important class of one-dimensional semiconductor nanomaterials, have unique optical properties such as fluorescence and ultraviolet, electrical properties such as field emission and electron transport, thermal conductivity, high surface activity, and quantum confinement effects, which make them have good application prospects in high-performance field-effect transistors, single electron detectors, and field emission display devices. Silicon nanowires are also widely studied and used in applications such as lithium-ion batteries, thermoelectric, photovoltaic, nanowire batteries, and non-volatile memory.
Silicon nanowire negative electrode materials can reduce the weight and volume of batteries, helping to manufacture batteries with higher energy density and longer service life. Compared with other granular silicon electrode materials, silicon nanowire electrode materials have outstanding advantages: high tolerance for electrode volume changes during cycling, which can avoid electrode structure damage to a greater extent; The large specific surface area is conducive to effective contact between the electrolyte and the electrode, and shortens the charging and discharging time; Shorten the distance between electron transport and ion diffusion, improve battery capacity and rate; Assist in achieving other functions, such as no fluid collection, self-supporting, etc.
Silicon nanowires have many advantages such as environmental friendliness, biocompatibility, easy surface modification, and compatibility with the semiconductor industry.
In terms of the current situation, the improvement of energy density is almost the most obvious breakthrough point for the battery industry, and even the electric vehicle industry, to make significant strides forward in terms of range. Against the backdrop of the rapid development of the new energy vehicle industry, consumers have set higher standards for the range of new energy vehicles, and the corresponding demand for silicon based negative electrode materials in battery applications is also rapidly increasing. The silicon negative electrode industry will usher in a period of rapid development. If silicon carbon negative electrode is the future of negative electrode materials, then silicon nanowires are the brightest stars of the future, and silicon nanowires are destined to become revolutionary negative electrode materials for power batteries!
Predictable silicon nanowires will lead the development of new science in the future, with broad applications in cell imaging, lithium-ion batteries, sensing fields, photocatalysis, light-emitting devices, solar photovoltaics, and field effect crystal tubes.

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