CIRCUIT CONTROL METHOD, BATTERY AND CONTROLLER AND MANAGEMENT SYSTEM THEREOF, AND ELECTRIC APPARATUS

Title:

CIRCUIT CONTROL METHOD, BATTERY AND CONTROLLER AND MANAGEMENT SYSTEM THEREOF, AND ELECTRIC APPARATUS

Document Type and Number:

WIPO Patent Application WO/2023/050264

Kind Code:

A1

Abstract:

Embodiments of the present application relate to the technical field of batteries, and provide a circuit control method, a battery controller, a battery management system, a battery, an electric apparatus, and a vehicle. The circuit control method comprises: obtaining an apparatus wake-up signal; determining whether the power supply terminal voltage of the charging circuit of a battery on an apparatus is greater than a first threshold, and whether a rate of change within a first duration is less than a second threshold, wherein the charging circuit is a circuit connecting the battery on the apparatus to a power generator, and the power supply terminal voltage is the output voltage of the power generator; and in the case that the power supply terminal voltage of the charging circuit of the battery on the apparatus is greater than the first threshold, and the rate of change within the first duration is less than the second threshold, issuing a first instruction, so that the charging circuit is turned on. According to the described mode, the present application can avoid that the charging circuit of the battery is turned on when the apparatus is not started, and when the apparatus is subsequently started, a lithium battery is over-charged to cause the thermal runaway of the battery, thereby improving the safety of the battery.

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Inventors:

LU FANGYOU (CN)
MA HANG (CN)
TIAN WEI (CN)
WANG XINGCHANG (CN)
HUANG ZHENHUI (CN)

Application Number:

PCT/CN2021/122068

Publication Date:

April 06, 2023

Filing Date:

September 30, 2021

Export Citation:

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Assignee:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)

International Classes:

H02J7/00; H01M10/42

Foreign References:

CN204068363U	2014-12-31
CN106364354A	2017-02-01
CN101373904A	2009-02-25
US20110001352A1	2011-01-06

Other References: