SoftBattery – Thin Power Source

“Enfucell”, a Finland-based company, has developed a flexible thin battery named “SoftBattery”. This 0.3 – 1.0 millimeter battery (1.5 or 3.0 V) can produce a peak electric current of 4mA/cm². Enfucell was founded in 2002, after nearly ten years of research on power sources for low-power application conducted at the Automation Laboratory of the Helsinki University of Technology. The SoftBattery has several interesting applications in the pharmaceutical, cosmetics, and logistics industries.

SoftBattery, Enfucell’s primary product, is similar to a thin galvanic cell and is made of low-cost environmentally friendly materials. The device was designed to be a disposable provider of low voltage, yet stable power. Because the SoftBattery is manufactured in a roll form, it can be easily integrated into existing production lines. The battery can be manufactured in various sizes, and due to its flexible size and shape will perform well even if it is slightly bent. Capable of operating in a wide range of temperatures (-25˚C to +60˚C), this moisture and wetness resistant battery is exceptionally durable. 

Enfucell envisions three main fields of application for SoftBattery: cosmetics, logistics and paper industries. In collaboration with a cosmetics company, Enfucell developed cosmetic patches that require a small current for the proper diffusion of pharmaceutical drugs. Flexible and small, SoftBatteries are able to provide an accurate and balanced electric current – a power source perfect for transdermal drug delivery. The company plans to integrate the technology into logistic (RFID) tags, and is currently working on the technology. In the paper industry SoftBatteries can be used as an alternative to button cells in applications like music-playing greeting cards and other short-lifetime gadgets that only require a low power supply.   

Enfucell Ltd. was selected as one of the Technology Pioneers 2007 by The World Economic Forum, for the company’s involvement in the development of an innovative technology that has a potential for long-term impact on business and society. 

TFOT covered several innovative battery technologies including Sony sugar-powered batteries, MIT’s Engine on a Chip, and Tel-Aviv University’s Nanobatteries

More information can be found on Enfucell’s official website.

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