Oak Ridge Micro-Energy, Inc. develops and produces custom designed thin film lithium and lithium-ion batteries that are ideally suited for a variety of applications where a small power source is needed. These batteries can be fabricated on a variety of substrates as well as onto chips, chip carriers or multi-chip module packages. By using the available space on a ceramic package or a silicon die, the battery can provide the required power while occupying otherwise wasted space and adding negligible mass.

The range of possible applications of these batteries derives from their important advantages compared to conventional battery technologies: (1) Because of their all solid-state construction, the batteries are completely safe under all operating conditions. (2) They can be made in any shape and size to meet the requirements of each application, and unlike many conventional batteries, the cost of thin-film batteries decreases as their size decreases. (3) Lithium-ion thin-film batteries can be heated to 280°C with no degradation in performance. This means they can be added to integrated circuits using the solder reflow process. (4) The batteries are rechargeable which means they can be significantly smaller than primary or non-rechargeable batteries for the same applications.