Stmicroelectronics has begun limited production of EnFilm's advanced rechargeable batteries, which are less than 0.25mm thick. These paper-thin batteries free designers from the limitations of standard battery sizes and are ideal for powering the next generation of personal technology and iot devices. At 220μm thick and measuring 25.7 mm x 25.7 mm, the SST EFL700A39 EnFilm solid-state thin film lithium battery is ideal for use in ultra-low-profile devices. Surface mount terminals allow direct connection to the board, which simplifies assembly and eliminates wires and connectors. Optional tape and reel packaging allows for high speed automatic placement.
With a nominal voltage of 3.9V and a capacity of 0.7mAh, the EFL700A39 can be used for a wide range of applications. Its lithium technology charges quickly through a 4.2V charging circuit and shows low capacity loss and long cycle life, which can be used for about 10 years if charged once a day. The EFL700A39 is RoHS and UL certified, meets United Nations testing and battery transport standards, meets IEC 62133 safety specifications, and meets ISO7816/IEC10373 smart card machinery and flexibility standards. ST is ready to fill orders for engineering samples and low-volume production, targeting applications such as wireless sensor nodes, RFID tags, smart cards, wearable technology, non-implantable medical monitors, and backup or storage of energy harvesting devices.
