Patent ID: 9531039
Filing Date: 2016-12-27
CPC Classification: G01R,H01M,Y02E,Y02P,Y02T

Claim Text:
1. A battery management system of a battery which has at least one battery cell including a cell housing and an electrode winding which is arranged inside the cell housing, the battery management system comprising: a battery state detection mechanism; and a pressure-sensitive film sensor positioned in contact with and covering at least certain areas of the electrode winding of the battery cell, the pressure-sensitive film sensor being configured to generate a measurement signal indicative of a pressure being applied to the pressure-sensitive film sensor by the electrode winding, wherein the battery state detection mechanism receives the measurement signal from the pressure-sensitive film and determines, a swelling force being generated by the electrode winding based on the pressure indicated by the measurement signal, and wherein the swelling force is used for a further determination of a state of charge or of a state of health.