A new type of silicon-based 18650 rechargeable battery lithium 3.7v 3500mah developed abroad has a charging capacity that is 10 times higher

　　A new type of silicon-based 18650 rechargeable battery lithium 3.7v 3500mah developed abroad has a charging capacity that is 10 times higher - Belgium's IMEC (Microelectronics Research Center) recently demonstrated a new type of nanoparticle material, which may mean a breakthrough in sustainable applications due to its unique material With its combination of performance and ease of manufacturing, it holds promise for a wide range of (sustainable) industrial applications. For example, more efficient batteries, better catalytic converters, fuel cells and hydrogen production.

　　IMEC (Microelectronics Research Center) in Belgium recently demonstrated a new type of nanoparticle material, which may mean a breakthrough in sustainable applications. Due to its unique combination of material properties and ease of manufacturing, it is expected to be used as a wide range of (Sustainable) industrial applications. For example, more efficient batteries, better catalytic converters, fuel cells and hydrogen production.

　　Nanowire materials are three-dimensional structures of multiple layers of horizontally connected nanowires that display highly regular internal spacing and dimensions. Therefore, it combines high porosity with an unprecedented surface-to-volume ratio. For every additional micron of thickness, the available surface area increases by a factor of 26! Picture this: When you fill a small can of soda, it has a surface area the size of a football field, but it still has 75% of its volume empty. Best of all, the inner and outer dimensions can be tuned to almost any specification, making it potentially compatible with many application requirements.

　　Grid structure for 3D impression

　　Many industrial processes are based on chemical reactions occurring on surfaces. The more surfaces available, the more reactions can occur simultaneously, and the higher the speed or throughput of the process. The unique material can be manufactured using inexpensive anodizing and electroplating processes, while molds are formed from anodized aluminum foil into which a wide variety of materials can be deposited. When converting lithium in battery electrodes into lithium ions, the nanomesh material enables high-capacity, fast charging because its large surface combines high porosity with a high loading of energy storage materials, while it still acts as a nanofilm with The collectors are in close contact.

　　SEM images reveal highly regular structure

　　At the same time, the University of Alberta in Canada recently developed a new silicon-based 18650 rechargeable battery lithium 3.7v 3500mah that uses silicon as the negative electrode instead of traditional graphite. Compared with current battery cell products, its charge capacity has increased by 10 times. This is because silicon has a greater capacity to absorb lithium ions than graphite, but it also has drawbacks. After multiple charges and discharges, silicon is easily broken because it expands and contracts after absorbing and releasing lithium ions. Cracks appear. In order to improve the performance of silicon, silicon materials are usually nanosized and composited, which can prevent breakage and maximize the stability and other performance of the battery. Relevant personnel said that if this technology is used in electric vehicle batteries, its cruising range may be increased by 10 times.

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