锂离子电池即将发生故障检测

• Format: Patent
• Language: Chinese
• Published: 25.02.2025
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

一种被配置为检测锂离子电池单元的即将发生的故障的电池管理系统包括传感器阵列微芯片。微芯片包括多个硅化学敏感场效应晶体管(CS-FET),其被配置为检测由锂离子电池单元排出的多种不同气体。电池管理系统还包括电池监测单元(CMU),其被配置为从CS-FET中的至少一个接收指示由锂离子电池单元排出的气体的检测量的数据。CMU还被配置为将指示排出气体的检测量的数据与编程到CMU中的目标排出气体的预定阈值量进行比较。CMU还被配置为当排出气体的检测量超过目标排出气体的预定阈值量时，触发指示锂离子电池单元的即将发生的故障的信号。 A battery management system configured to detect impending failure of a lithium-ion battery cell includes a sensor array microchip. The microchip includes a plurality of silicon chemical-sensitive field effect transistors (CS-FETs) configured to detect multiple distinct gases vented by the lithium-ion battery cell. The battery management system also includes a cell monitoring unit (CMU) configured to receive from at least one of the CS-FETs data indicative of a detected amount of gas vented by the lithium-ion battery cell. The CMU is also configured to compare the data indicative of the detected amount of the vented gas to a predetermined threshold amount of the subject vented gas programmed into the CMU. The CMU is further configured to trigger a sign