Explosion-proof lithium battery power supply having two output types, and operating method thereof

Abstract

The invention discloses an explosion-proof lithium battery power supply having two output types, and an operating method thereof. The explosion-proof lithium battery power supply comprises a power supply body and an external protection system, wherein the external protection system is composed of an intrinsically safe type dangerous mixture concentration monitoring and power supply protection system, and the power supply body comprises an explosion-proof power supply outer shell and an encapsulation module. The operating method comprises the steps that a battery module charges and discharges with the outside by means of a discharge positive electrode, a discharge negative electrode, a charge positive electrode and a charge negative electrode, and a battery management system and the intrinsically safe type dangerous mixture concentration monitoring and power supply protection system control the on-off of a controllable switching unit inside the encapsulation module, thereby realizing different output types of the lithium battery power supply. The explosion-proof lithium battery power supply and the operating method thereof have the advantages that: by adopting the explosion-proof protection method combining encapsulation protection, intrinsic safe protection and explosion-proof protection, multiple electrical protection mechanisms and a plurality of circuit isolation methods, restrictions on use of the lithium ion battery power supply in dangerous regions such as ''0'' region are effectively eliminated, and the application range of the lithium ion battery power supply is expanded.

Description

technical field [0001] The invention relates to the application field of a lithium battery power supply in an explosive mixture environment, in particular to an explosion-proof lithium battery power supply with two output types and a working method thereof. Background technique [0002] At present, the high-power battery power used in the explosive mixture environment is mostly lead-acid batteries. Lead-acid batteries have defects such as low energy storage and large volume, and there is a side reaction of hydrogen evolution during the charging process, which seriously affects the safety of the explosive mixture environment. As the hazardous mixture monitoring and monitoring system in the explosive mixture environment and other electrical equipment such as handheld devices, auxiliary transportation equipment, etc. have more and more requirements on battery capacity, industrial production tends to choose to use lithium-ion batteries with higher energy. However, the larger the...

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Problems solved by technology

Most of the currently used explosion-proof and intrinsically safe lithium-ion power supplies or the patents that have been applied for only have intrinsically safe output or non-intrinsically safe output, which cannot meet the requirements of various power units such as intrinsically safe systems and non-intrinsically safe systems. , and the explosion-proof protection level cannot meet the requirements in hazardous places like "0" zone

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