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Charging control method based on lithium battery characteristics

A charging control method, lithium battery technology, applied in battery circuit devices, current collectors, electric vehicles, etc.

Inactive Publication Date: 2018-11-23
杭州奥能电源设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new charging control method based on the characteristics of lithium batteries, which solves the technical problem of overcharging during charging and starting

Method used

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  • Charging control method based on lithium battery characteristics
  • Charging control method based on lithium battery characteristics
  • Charging control method based on lithium battery characteristics

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the drawings.

[0030] reference figure 1 This figure is a schematic flow chart of an embodiment of a charging control method based on the characteristics of a lithium battery according to the present invention, and the flow includes:

[0031] S1, it is detected that a lithium battery needs to be charged;

[0032] S2, performing stepwise precharging on the lithium battery according to a preset precharging current;

[0033] S3, after completing the pre-charging, charge the lithium battery with constant current according to the preset constant current charging current;

[0034] S4, performing constant voltage charging on the lithium battery after completing the constant current charging.

[0035] In specific implementation, the specific process of step s2 is different from the current commonly used charging method. At the beginning of charging, a smaller current is used for charging. After maintaining for a ...

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Abstract

The invention discloses a novel charging control method based on lithium battery characteristics. The method comprises the steps of: S1, detecting that a lithium battery needs to be charged; S2, according to a preset pre-charging current, carrying out stepped pre-charging on the lithium battery; S3, after completing pre-charging, carrying out constant-current charging on the lithium battery according to a preset constant-current charging current; and S4, after completing constant-current charging, carrying out constant-voltage charging on the lithium battery. By adopting the novel charging control method, the technical problem of overcharge in the charging starting process is solved.

Description

Technical field [0001] The invention belongs to the technical field of charging piles, and in particular relates to a charging output control method of a DC charging pile that directly charges a battery. Background technique [0002] At present, there are two types of charging piles: AC and DC. Among them, the AC charging pile directly transmits the mains power to the vehicle through a circuit breaker, and the vehicle charges the battery through its internal electric energy conversion device; the DC charging pile is the The electricity is converted into electric energy in the pile, and then directly transmitted to the battery of the vehicle through the switch. [0003] The current DC charging pile, its output voltage and output current are based on the vehicle battery management system (hereinafter referred to as BMS), but in actual applications, the output voltage and output current sent by the BMS does not take into account the current electric The characteristics of the lithium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0077
Inventor 林鑫陈卓冯斌
Owner 杭州奥能电源设备有限公司
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