Lithium battery system and lithium battery system management method and application

Abstract

The invention discloses a lithium battery system, a management method and an application of the lithium battery system. The lithium battery system includes: a lithium battery pack composed of more than one lithium battery cell and a battery management system, a fuse mechanism is connected in series at the positive terminal of the lithium battery pack; the negative terminal of the lithium battery pack is respectively connected to the first power switch , the second power switch is connected in series, and a power resistor is connected in series between the negative end of the lithium battery pack and the second power switch; the battery management system is also connected with the lithium battery pack, the first power switch, and the second power switch respectively. switch connection. The lithium battery system provided by the present invention can directly replace the lead-acid battery. It does not need to modify the hardware such as the circuit of the motor control system of the original electric vehicle, nor does it need to modify other structures of the electric vehicle. Directly interface with various models of motor control systems.

Description

technical field [0001] The invention particularly relates to a lithium battery system and a management method and application of the lithium battery system. Background technique [0002] Facing the increasingly severe energy situation and social environmental protection pressure, lithium battery forklifts are considered to be one of the inevitable choices for the transformation and upgrading of the electric forklift industry. Since lithium batteries and lead-acid batteries are two different systems of power batteries, and their battery principles are also different, when electric vehicles are converted from lead-acid batteries to lithium-ion batteries, their management methods also need to be changed: [0003] 1) Traditional forklifts use lead-acid battery packs, which do not have a battery management system, so there is no communication interface between the motor controller and the lead-acid battery pack; [0004] 2) At present, when an electric forklift uses a lithium ba...

AI Technical Summary

Problems solved by technology

[0003] 1) Traditional forklifts use lead-acid battery packs, which do not have a battery management system, so there is no communication interface between the motor controller and the lead-acid battery pack;

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