Science & Technology

3D printing may be the answer to a flexible and wearable battery. – Science Inquirer

The demand for flexible wearable electronics has skyrocketed with the dramatic growth of smart devices that can exchange data with other devices over the Internet with embedded sensors, software, and other technologies. As a result, researchers are focusing on exploring flexible energy storage devices such as flexible supercapacitors (FSCs) that are lightweight, safe, and easily integrated with other devices. FSC has high power density and fast charge and discharge rates.

Manufacture of electronic devices and systems using printed electronics, traditional printing technology has proven to be an economical, simple and scalable strategy for manufacturing FSC. Traditional micro-manufacturing techniques can be expensive and complex.

To Applied Physics ReviewAccording to AIP Publishing, researchers at Wuhan University and Hunan University have reviewed printed FSCs on their ability to formulate functional inks, design printable electrodes, and integrate functionality with other electronic devices. It offers.

Printed FSCs are typically manufactured by printing functional inks on traditional organic and inorganic electrode materials on flexible substrates. The thin film construction allows these printing devices to bend, stretch and twist to a certain radius without losing their electrochemical function.

In addition, the rigid collector components of supercapacitors can be replaced with flexible printed components. Various printing technologies such as screen printing, inkjet printing, and 3D printing have been established to produce printed FSCs.

“Development of miniaturized, flexible and planar high-performance electrochemical energy storage devices is an urgent requirement to facilitate the rapid development of portable electronic devices in everyday life,” said author Wu Wei. .. “In the future, we can imagine that we can use any printer in our lives and print supercapacitors to charge our cell phones and smart wristbands at any time.”

Researchers have found that two principles need to be followed for printable ink formulations. First, when choosing an ink component, it is important to reduce ineffective additives, improve conductive binders, and include good dispersed electrode materials. Second, the ink must have the proper viscosity and good rheological properties to get good printing.

Printable functional materials such as graphene and pseudocapacitors are excellent core components of printed supercapacitors.

Printed electronics offer the benefits of flexibility and low cost, so they can be used to manufacture solar cells, flexible OLED displays, transistors, RFID tags, and other integrated smart devices. This opens up possibilities for many other applications such as smart textiles, intelligent packaging, and smart labels.

Image: Wei Wu

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3D printing may be the answer to a flexible and wearable battery. – Science Inquirer 3D printing may be the answer to a flexible and wearable battery. – Science Inquirer

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