BATTERY AND METHOD FOR OPERATING SAME

摘要

The invention relates to a battery (1) comprising a battery housing (10) and at least one battery cell (11) and at least one fiber optic sensor (2) which has at least one waveguide (20) with a core and a material surrounding said core. At least one fiber Bragg grating (21) is introduced in the core and is mechanically coupled to the battery housing (10) and/or to the battery cell (11) in order to detect a change in size of the battery housing (10) and/or of the battery cell (11). At least a second fiber Bragg grating (22) is introduced in the core and is mechanically decoupled from the battery housing (10) and the battery cell (11). The invention further relates to a method for the open loop or closed loop control of the charging and/or discharging of a battery, measurement values being acquired by at least one fiber optic sensor (2).