Recently, at the Munich Electronics Show, TDK Group demonstrated the industry's first CeraCharge solid-state rechargeable battery with compact SMD technology. Today's colorful life is inseparable from batteries and batteries of different technologies and with different capacities. In the future, the development of the Internet of Things will require billions of special power supplies to meet the demands of new ultra-low power semiconductors and sensors. These devices must operate for years with energy harvesting technology without external power. This places new demands on energy storage media: small size, rechargeable, intrinsically safe, easy to assemble, low cost and long service life. The current technology does not meet all of these requirements at the same time. For many applications, TDK Group's CeraCharge battery provides a solution to the current dilemma. Unlike most common technologies, CeraCharge uses a solid electrolyte instead of a conventional electrolyte to charge and discharge through the movement of lithium ions in the solid. CeraCharge is a laminate-based battery similar to MLCC, as shown. Figure: Sectional view of CeraCharge. A solid ceramic electrolyte is used instead of a liquid electrolyte. CeraCharge is a solid state rechargeable battery without any liquid electrolyte. The battery uses a multilayer technology similar to MCLL, which combines relatively high energy density and small component volume, as well as the safety and high volume manufacturing characteristics of ceramic multilayer components. In addition, the use of solid ceramics as an electrolyte eliminates the risk of fire, explosion and leakage of liquid electrolytes. As shown, CeraCharge has significant advantages in terms of size, pin, cost and suitability. The product is flexible for parallel and series configurations for high volume and high voltage applications. Particularly suitable for real-time clocks, Bluetooth beacons, wearable devices and energy harvesting systems. Guangzhou Lufeng Electronic Technology Co. , Ltd. , https://www.lufengelectronics.com
The number of charge and discharge cycles can be from tens of times up to 1000 times, with a compact EIA 1812 package size (4.5*3.2*1.1mm), rated voltage of 1.4V, and capacity of 100μAh. It can withstand currents up to several mA in a short time. Thanks to the SMD technology, the battery is very easy to deploy and can be soldered by reflow soldering technology, helping customers to reduce the production cost of the end product.
The security advantage is obvious:
There are many types of solid-state power supplies, including thin-film batteries, pouch cell soft pack batteries, etc. In contrast to these technologies in the market, CeraCharge has taken the lead in some respects.
Currently, EIA 1812 SMD-type products have begun to release samples. It is expected to be mass-produced in the spring of 2018. In addition, in order to cooperate with more applications, TDK is developing CeraCharge batteries of other specifications and capacities such as EIA 0603.