Japan Intellectual Property Rights: ABNORMALITY DETECTION DEVICE OF SECONDARY BATTERY

Japan, July 14 -- SEMICONDUCTOR ENERGY LAB CO LTD has got intellectual property rights for 'ABNORMALITY DETECTION DEVICE OF SECONDARY BATTERY.' Other related details are as follows:

Application Number: JP,2025-035251

Category (FI): H02J7/82,H02J7/84,G01R31/367,G01R31/378,G01R31/389,G01R31/396,H01M10/48@P,H02J7/00@Y,H02J7/00,H02J7/50,H02J7/80

Stage: PROBLEM TO BE SOLVED: To provide a control system of secondary battery that performs abnormality detection while predicting other parameters, such as internal resistance and SOC with high accuracy.SOLUTION: A Kalman filter is used to detect a difference between an observed value (voltage) at a given time point and a voltage estimated using a prior state variable. A threshold voltage is set in ...