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

A system management and battery management system technology, applied in battery/fuel cell control devices, electric vehicles, transportation and packaging, etc., can solve the problem that the battery pack does not have a battery management system, and the motor controller and the lead-acid battery pack have no communication interface and other issues to achieve the effect of simple structure

Active Publication Date: 2019-07-16
江苏赣锋动力科技有限公司
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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;

Method used

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

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Embodiment Construction

[0018] In view of the deficiencies in the prior art, the inventor of this case was able to propose the technical solution of the present invention after long-term research and extensive practice. The technical solution, its implementation process and principle will be further explained as follows.

[0019] An embodiment of the present invention provides a lithium battery system, including: a lithium battery pack composed of more than one lithium battery cell and a battery management system, the positive terminal of the lithium battery pack is connected in series with a fuse mechanism; the negative terminal of the lithium battery pack is connected in series with the first power switch and the second power switch respectively, 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 and the first power switch respectively. The power s...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/10
CPCB60L58/10Y02T10/70
Inventor 陈娜朱雄伟
Owner 江苏赣锋动力科技有限公司
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