Non-aqueous electrolyte lithium secondary cell

摘要

A device for protecting a cell is described comprising a cell body arranged in a container which has opening and closing means to open and close the cell body from the exterior atmosphere of the container. The device also has a sensor for sensing an impact to the cell body. When the impact is above a predetermined value, a barrier fluid is sprayed into the interior of the container. The opening and closing means of the container is operated in response to the spraying of the barrier fluid.