Lithium battery system and management method thereof and application of lithium battery system management method

Abstract

The invention discloses a lithium battery system and a management method thereof and application of the lithium battery system management method. The lithium battery system includes a lithium batterypack formed by one or more li-ion cells and a battery management system, wherein the anode end of the lithium battery pack is connected in series with a fusing mechanism; the cathode end of the lithium battery pack is respectively connected in series with a first power switch and a second power switch, and a power resistor is further connected in series between the cathode end of the lithium battery pack and the second power switch; and the battery management system is further connected with the lithium battery pack, the first power switch, and the second power switch respectively. According to the lithium battery system, the lithium battery system can be used directly instead of a lead-acid battery, and circuits and other hardware of motor control systems of original electric vehicles donot need to be changed, other structures of the electric vehicles also do not need to be changed, and the lithium battery system can be directly connected with the motor control systems with differenttypes.

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;

Images