Lithium battery charging and discharging temperature online detection system and method

• Main Authors: CHEN ZHONGFEN, LIU BO, WANG RUIJUAN
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2024
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The invention discloses a lithium battery charging and discharging temperature on-line detection system and method, and relates to the technical field of lithium battery charging and discharging temperature detection, and the system comprises a battery data acquisition unit, a charging process analysis unit, a discharging process analysis unit and an analysis result output unit. The technical problem that the detection result is inaccurate due to the fact that the capacity is directly detected by obtaining the temperature is solved, the charging process and the discharging process are analyzed respectively, the charging state is analyzed according to the change of the temperature in the charging process, the charging electric quantity is divided, and the detection result is accurate. The charging temperature and the charging efficiency in different charging time periods are analyzed, the accuracy of temperature detection is further improved, the same charging rate is adopted for analysis according to the temp