STMicroelectronics has now started producing paper thin rechargeable batteries called 'EnFilm' which are just 0.25mm thick. These thin batteries designed for personal technology and Internet-of-Things (IoT) devices.
220µm and 25.7mm x 25.7mm sized EFL700A39 solid-state lithium thin-film battery made for ultra-low-profile devices. Surface-mount terminals allow direct attachment to the circuit board, which simplifies assembly and eliminates wires and connectors. Optional tape-and-reel packaging allows high-speed automated placement.
Specs of this battery: With 3.9V nominal voltage and 0.7mAh capacity, the EFL700A39 can power a wide range of applications. Its lithium technology recharges rapidly from a 4.2V charging circuit and displays low capacity loss as well as long cycle life allowing some 10 years of use if charged once per day. The EFL700A39 is RoHS compliant and UL1 certified, satisfies UN2 tests and criteria for battery transportation, meets IEC 62133 safety specifications, and meets the ISO7816/IEC10373 mechanical and flexibility standards for smart cards.
ST said it is ready to fulfill orders for engineering samples and small production quantities, targeting applications including wireless sensor nodes, RFID tags, smart cards, wearable technology, non-implantable medical monitors, and back-up or storage for energy-harvesting devices. The unit price is $30.00 for orders of five units.
For more details visit: www.st.com/enfilm-nb