Inkjet Printing for Producing Li-Ion Secondary Batteries
Autor: | Kanno Yusuke, Yanagita Hideo, Takeuchi Shigeo, Kuriyama Hiromichi, Suzuki Eiko, Porapon Tanteitanton, Ushirogochi Toru, Nakajima Satoshi, Toshiya Sagisaka |
---|---|
Rok vydání: | 2020 |
Předmět: | |
Zdroj: | ECS Meeting Abstracts. :320-320 |
ISSN: | 2151-2043 |
DOI: | 10.1149/ma2020-012320mtgabs |
Popis: | Recently, emerging devices such as IoT (internet of things) sensors and wearable devices require lithium-ion batteries (LIBs) with flexibility, various forms in terms of shape and size, and high power density. As required of these points, we have developed a new approach to producing free-designed cathodes and anodes for LIBs using inkjet printing. In this study, we mobilized all our accumulated technological expertise, including ceramic particle grinding technology and high dispersion technology to develop a new printable dispersion liquid for electrode materials. Most types of cathode and anode materials have been successfully used to demonstrate high concentration and low viscosity dispersion liquid for an inkjet printing with high productivity. The thickness of an inkjet printed electrode can be controlled by the number of droplets landed on the current collector. Because of the digital tuning of the thickness, we can obtain a thinner electrode with high-power density than the one fabricated by the conventional coating methods. In order to demonstrate the high-power usage of inkjet-printed electrodes, we fabricated a “R”-shaped prototype cell with capacity of 3mAh using common ceramic-type cathode and anode materials. As a result of the low impedance of inkjet-printed electrodes, the prototype cell can operate over 30C rate. This prototype cell had enough power to send data collected on temperature and humidity every five seconds via Bluetooth to a computer. |
Databáze: | OpenAIRE |
Externí odkaz: |
načítá se...