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High-power multi-series-parallel lithium battery protection system

A protection system, lithium battery technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve problems such as inability to manage and control high-power batteries, complex charge and discharge chemical reactions, and complex lithium battery mechanisms.

Inactive Publication Date: 2018-01-05
广州明美新能源股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The internal mechanism of the lithium battery is relatively complicated, and the chemical reaction of charge and discharge is complicated, so there are many problems when the lithium battery is used. When the lithium battery is used, a monitoring and management system is required for monitoring and protection.
Most of the existing lithium battery protection systems are controlled by FETs in the switch control of charge and discharge, but the current range of FETs is generally below 80A, and FETs cannot realize high-power batteries. management control

Method used

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] see figure 1 , is a module connection diagram of a high-power multi-series parallel lithium battery protection system provided in Embodiment 1 of the present invention.

[0030] A high-power multi-serial parallel lithium battery protection system, comprising a battery pack 100, a passive balancing module 101, an analog front-end module 102, a single-chip microcomputer 103, a current detection module 202, a temperature detection module 201, a second control m...

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Abstract

The invention discloses a high-power multi-series-parallel lithium battery protection system. The system comprises a battery pack, a passive balancing module, an analog front-end module, a single chipmicrocomputer, a current detection module, a temperature detection module, a first control module, a second control module, a battery cathode output, a charging terminal and a battery anode output. Through a technical scheme of detecting the temperature, current and voltage of the battery pack and controlling a charging end and a discharging end through the single chip microcomputer and an analogfront-end according to detection signals, a problem that a high-power battery can not be managed and controlled in the prior art is solved, and the management monitoring and protection of the high-power lithium battery can be effectively realized.

Description

technical field [0001] The invention relates to the field of lithium battery management, in particular to a high-power multi-series parallel lithium battery protection system. Background technique [0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. In 1912, the lithium metal battery was first proposed and studied by Gilbert N. Lewis. In the 1970s, M.S.Whittingham proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become the mainstream now. [0003] The internal mechanism of the lithium battery is relatively complicated, and the chemical reaction of charge and discharge is complicated, so there are many problems when the lithium battery is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 梁昌明欧阳光蒋新华
Owner 广州明美新能源股份有限公司
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