Battery and mobile terminal for detecting battery cell deformation

摘要

A battery capable of detecting battery cell deformation is provided. The battery includes a battery cell, a grounded encapsulation part, and a film that is located between the battery cell and the encapsulation part and keeps a separation between the film and the encapsulation part. The film is deployed with a serial impedance cabling, where a resistance value of the serial impedance cabling changes as the length of the serial impedance cabling changes. When deformation of the battery cell exceeds a predetermined value, the film is capable of bearing extrusion of the battery cell and becomes deformed, so that the serial impedance cabling contacts the encapsulation part, so as to short-circuit the serial cabling of a certain length to ground. The battery provided in the embodiments of the present invention is capable of improving safety of the battery cell.

主权项

1. A battery, comprising:
a battery cell; a grounded encapsulation part; a film located between the battery cell and the encapsulation part, wherein there is a separation between the film and the encapsulation part; a serial impedance cabling located on the film, wherein a resistance value of the serial impedance cabling changes as a length of the serial impedance cabling changes; and an electric current detection pin located on the battery cell and separate from first and second pins that are connected to electrodes of the battery cell, wherein the electric current detection pin is connected to the serial impedance cabling, and wherein the electric current detection pin is connected by the serial impedance cabling to the grounded encapsulation part when the serial impedance cabling contacts the grounded encapsulation part.