Multi-box parallel SOC equalization control system for explosion-proof lithium battery power supply device

Abstract

The invention discloses a multi-box parallel SOC equalization control system for an explosion-proof lithium battery power supply device, and the system comprises a first battery box, a second batterybox, a third battery box, and a fourth battery box, and the surfaces of the first battery box, the second battery box, the third battery box, and the fourth battery box are fixedly connected with a hand-held rod. Heat dissipation holes are formed in the surfaces of the first battery box, the second battery box, the third battery box and the fourth battery box, and the cathode of the battery collection and management system BMS is electrically connected with a bus current sensor CT. The present invention relates to the technical field of lithium batteries. According to the multi-box parallel SOC equalization control system for the explosion-proof lithium battery power supply device, through the arrangement of a field bus CAN, before a battery system is charged, a battery collection and management system (BMS) of each battery box automatically detects the SOC equalization degree between boxes, charging is carried out on the battery boxes which are detected to be unbalanced, and rapid charging maintenance is carried out on a battery pack through an electronic control mode; and manual maintenance operation is avoided, and maintenance efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a multi-box parallel SOC balance control system for an explosion-proof lithium battery power supply device. Background technique [0002] Lithium batteries are a type of batteries that use lithium metal or lithium alloys as positive / negative electrode materials and use non-aqueous electrolyte solutions. People proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become the mainstream. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Li-ion batteries do not contain metallic lithium and are rechargeable. The rechargeable fifth-generation lithium metal battery is superior to lithium-ion ba...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a multi-box parallel SOC balance control system for an explosion-proof lithium battery power supply device, which solves the problem of inefficiency and troublesome manual balance maintenance when the battery box SOC is unbalanced.

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