Lithium battery pack control system, lithium battery and control method

A lithium battery pack and control system technology, which is applied in the direction of charging/discharging secondary batteries, secondary batteries, and secondary battery repair/maintenance, etc., to achieve the effects of good safety performance, improved service life, and perfect protection measures

Inactive Publication Date: 2019-09-20
SHANDONG GOLDENCELL ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the so-called lithium-ion batteries on the market basically use hardware protection boards. This type of lithium-io

Method used

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  • Lithium battery pack control system, lithium battery and control method

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[0022] The specific structure of the present invention will be further described below:

[0023] The lithium battery pack control system of the present invention mainly includes a micro-control unit. Specifically, a temperature acquisition circuit, an equalization circuit, a voltage acquisition front-end circuit, and a heating film temperature acquisition circuit are arranged in the lithium battery pack. The lithium battery pack starts from the negative terminal to the The load terminal is connected in series with the discharge overcurrent short-circuit acquisition circuit, the discharge MOSFET switch, the charge MOSFET switch and the charge overcurrent detection circuit, the temperature acquisition circuit, the equalization circuit, and the voltage acquisition front-end circuit are connected to the signal input end of the micro control unit, the micro control unit The signal output terminal is connected to the communication circuit, the power status circuit, the UART communicatio...

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Abstract

The invention relates to a lithium battery pack control system, a lithium battery and a control method, and belongs to the field of lithium batteries. The adopted technical scheme is that the lithium battery pack control system comprises a micro control unit, the lithium battery pack is internally provided a temperature acquisition circuit, an equalization circuit, a voltage acquisition front-end circuit and a heating film temperature acquisition circuit, the lithium battery pack is sequentially connected to a discharge overcurrent and short circuit acquisition circuit, a discharge MOSFET switch, a charge MOSFET switch and a charge overcurrent detection circuit in series from the negative electrode end to the load end, the temperature acquisition circuit, the equalization circuit and the voltage acquisition front-end circuit are connected to a signal input end of the micro control unit, and a signal output end of the micro control unit is connected to a communication circuit, an electric quantity state circuit, an RS485 communication circuit, a UART communication circuit and a heating control circuit. The lithium battery pack control system can realize a bluetooth (or Internet of Things) function, a low temperature protection function, a low temperature heating function, a low voltage protection function and a charging current limiting function of the battery pack, and can improve the service life of the lithium battery.

Description

technical field [0001] The invention relates to a lithium battery pack control system, a lithium battery and a control method, belonging to the field of lithium batteries. Background technique [0002] In recent years, the country has listed the new energy-lithium battery as a strategic emerging industry. China's lithium battery industry has developed by leaps and bounds, and the lithium battery market has also brought diversified development and increasing demand. The batteries used in electric tools, electric forklifts, electric bicycles, and electric vehicles are gradually being replaced by lithium batteries. However, lithium-ion batteries currently on the market can only be used blindly, without knowing the state of the battery at all. At present, the so-called lithium-ion batteries on the market basically use hardware protection boards. This type of lithium-ion batteries cannot meet the diversified needs of the market and cannot perfectly realize the replacement needs...

Claims

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Application Information

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IPC IPC(8): H01M10/42H01M10/44H01M10/48H01M10/615
CPCH01M10/4207H01M10/425H01M10/441H01M10/443H01M10/482H01M10/486H01M10/488H01M10/615H01M2010/4271H01M2010/4278Y02E60/10
Inventor 韩业庭任士界孙浩
Owner SHANDONG GOLDENCELL ELECTRONICS TECH
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