Lithium battery thermal runaway testing device and battery explosive power evaluation method

• Main Authors: HAO MINGMING, YANG MING, DING HUIBIN, LANG WENQI, ZHANG JING
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TESTING

The invention relates to the technical field of to-be-tested batteries, in particular to a lithium battery thermal runaway testing device and a battery explosive power evaluation method.The lithium battery thermal runaway testing device comprises a testing bin, a limiting piece, a fastening piece and a detection tool, a to-be-tested battery is placed in the testing bin and fixed in the testing bin through the limiting piece and the fastening piece, and the to-be-tested battery is placed in the testing bin; and the explosive power of the to-be-detected battery can be evaluated by connecting the detection tool. The testing device and method have the advantages that the structure is simple, operability is high, the requirement for high-energy lithium battery thermal runaway explosive power testing can be met, battery thermal runaway one-way eruption is closer to the battery thermal runaway loading state in a system or a module, the accuracy of the testing result is improved, and the testing efficiency is improve