A lithium battery management system integrating information collection, data communication, and power balance functions

Abstract

The invention discloses a lithium battery management system integrating information collection, data communication, and power balance functions, the system includes a battery pack controller and a plurality of cell controllers, the input port of each cell controller is connected with a cell, the plurality of cell controllers are connected in series to form a battery pack at the output terminal thereof, the output terminal of the battery pack is connected with the output terminal of the battery pack controller, and the input terminal of the battery pack controller is connected with an electricity utilization load or a charging device. The power topology of the cell controllers adopts a bidirectional DC-DC converter for realizing charging or discharging of cells; the cell controllers and thebattery pack controller communicate through power signal composite modulation communication. The invention can realize multiple functions such as information collection, data communication, battery electric energy active balance, battery pack protection, and historical information storage, and has the advantages of low communication cost, simple maintenance, wiring harness saving, compact structure and convenient secondary use of the battery.

Description

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AI Technical Summary

Benefits of technology

This technology uses one small component called this module instead of two big components like another bigger ones - each with its own functions – making sure they have complete functionality without being affected from any other things happening around them. By integrating these smaller parts into a larger part, the overall size of the device becomes more compact while still maintaining good efficiency during operation. Additionally, the integrated solution allows for easier customization based upon different applications and environments where the devices operate. Overall, this innovation makes up a lottery-changing challenge because current systems require multiple components such as sensors, circuits, etc., increasing their complexity and requiring significant effort to install and service over time.

Problems solved by technology

Technological Problem: Current Li ion batteries require expensive equipment due to limited capacity, while newer models offer greater durable lifespan and improved functionality than older ones. Additionally, some advanced materials like vanadium oxide also pose challenging issues during operation at extreme temperatures.

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