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On December 1st, Huawei's Central Research Institute Watts Laboratory announced that it has made major breakthroughs in the field of lithium-ion batteries: the industry's first high-temperature long-life graphene-based lithium-ion battery.
The experimental results show that the new high-temperature technology based on graphene can increase the upper limit of the temperature of the lithium-ion battery by 10°C. The service life is twice that of the ordinary lithium-ion battery. Li Yangxing, chief scientist of Huawei Watts Laboratory, revealed that the breakthroughs mainly come from three aspects: the addition of special additives to the electrolyte to remove traces of water to avoid the high-temperature decomposition of the electrolyte; the use of modified large single crystal ternary materials for the positive electrode of the battery improves The thermal stability of the material; at the same time, the use of the new material graphene enables efficient heat dissipation between the lithium-ion battery and the environment.
Huawei's research results may bring innovation to the energy storage business of communication base stations. For example, the working life of an external base station using this high-temperature lithium-ion battery in a hot area can reach 4 years or more, and the graphene-based lithium-ion battery will also help the electric vehicle sustain its long-term life in a high-temperature environment and the safe flight of a drone at high temperature and heat. . (Reporter Wu Qiong)
Anodizing treatment is a surface finishing process for aluminum that forms a protective oxide layer on the surface of the metal. The process involves immersing the aluminum material in an electrolytic solution and passing an electric current through it. This creates a uniform and durable oxide coating that enhances the corrosion resistance and aesthetic appeal of the metal.
There are two main types of anodizing treatment: sulfuric acid anodizing and hard anodizing. Sulfuric acid anodizing is the most common type and produces a thinner, more decorative layer of oxide coating, while hard anodizing results in a thicker, harder, and corrosion-resistant layer that is ideal for industrial and automotive applications.
Anodizing treatment provides numerous benefits to aluminum products. It increases their resistance to corrosion and wear and tear, making them suitable for use in harsh environmental conditions. The process also enhances the strength and durability of the metal, extending its lifespan and reducing the need for maintenance.
Another advantage of anodizing treatment is its ability to add color and texture to aluminum products. Different dyes can be added to the electrolyte solution to produce a range of colors, from bright and vibrant to more subdued tones. Additionally, different textures and finishes can be achieved through specialized anodizing processes, such as matte anodizing or brushed anodizing.
Anodizing treatment is commonly used in various industries, including aerospace, automotive, construction, and consumer goods. It is an eco-friendly process as it uses no hazardous materials and produces minimal waste. However, it is important to note that anodizing treatment may affect the dimensional accuracy of the product and may mask defects that are present on the surface of the material.
Overall, anodizing treatment provides an effective way to enhance the functionality and appearance of aluminum products. As research and innovation continue to advance, even more advanced and innovative applications of anodized aluminum are expected to emerge.
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