According to one embodiment, an information processing apparatus includes a wireless communication module including an event notifier, an embedded controller and a setting module. The bias stack includes a biasing layer and is separated from a free layer in the sensor by a spacer layer. The insert is then fit within a pocket in the back cover of the cover. Also, in order to form a spacer, a first insulating layer is deposited on an entire resultant structure and then selectively patterned. When the inner temperature of the battery rises due to overcharging, the thermal protector installed in the can accurately detects the increase in temperature, and cuts off current flow, thereby preventing thermal runaway and improving reliability of the secondary battery.