Safety characterization of Li/MnO{sub}2 cells: Li/MnO{sub}2 cells are designed to avoid cell venting providing an advantage over Li/SO{sub}2 cells

摘要

The following paper provides an overview of the Ultralife Batteries, Inc. and Ultralife Batteries (UK) Ltd. cell design and component selection utilized in the manufacturing of lithium-manganese dioxide (Li/MnO{sub}2) cells. A limited comparison of Li/MnO{sub}2 to lithium-sulfur dioxide (Li/SO{sub}2) cells is presented focusing on each cell's performance characteristics under abuse conditions. These characteristics indicate that LuMnO{sub}2 cells may be used safely in applications where Li/SO{sub}2 cells may be considered inappropriate.. The Li/MnO{sub}2 cells essentially have an additional safety feature that is not present in Li/SO{sub}2 cells. Shutdown separator provides this additional feature. This information is important to end users so that proper decisions can be made about the applicability of using Li/MnO{sub}2 cells in applications that can benefit from their inherent safety over Li/SO{sub}2 and/or by the performance benefit over alternative chemistries in demanding applications. Applications in enclosed areas that may reach high storage and operating temperatures are especially appropriate for the Li/MnO{sub}2 cells in comparison to Li/SO{sub}2 cells.