Patent ID: 8071233

Claim:
A battery, comprising: a) a first terminal in electrical communication with a first electrode of the battery, wherein the first terminal is a negative terminal; b) a second terminal in electrical communication with a second electrode of the battery, wherein the second terminal in a positive terminal; c) a battery can that includes aluminum and is electrically insulated from the first terminal, wherein at least a portion of the battery can is at least a component of the second terminal, or is electrically connected to the second terminal, the battery can including a cell casing and a lid which are in electrical communication with each other; and d) at least one current interrupt device in electrical communication with the battery can, the current interrupt device including, i) a first conductive plate, composed at least in part of aluminum, in electrical communication with the second electrode; and ii) a second conductive plate, composed at least in part of aluminum, in electrical communication with the first conductive plate and with the lid of the battery can, wherein the first conductive plate is between the second electrode and the second conductive plate, and in electrical communication with the lid through the second conductive plate, and in electrical communication with the lid through the second conductive plate, wherein the second conductive plate separates from the first conductive plate without rupturing when pressure inside the battery is greater than a predetermined value, whereby a current flow between the second electrode and the second terminal is interrupted.