Title:
BATTERY MANAGEMENT SYSTEM, ELECTRIC DEVICE, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/046412
Kind Code:
A1
Abstract:
Provided are a vehicle (200) and an electric device (100), each comprising a battery management system (10). The battery management system (10) comprises a battery (1), an electrical-signal conversion module (2), and a control module (3). The battery (1) comprises a winding battery cell (11), wherein the winding battery cell (11) comprises a positive electrode sheet and a negative electrode sheet. The positive electrode sheet comprises a first positive electrode tab (B+1) and a second positive electrode tab (B+2), and the negative electrode sheet comprise a first negative electrode tab (B-1) and a second negative electrode tab (B-2). A first power supply connection end of the electrical-signal conversion module (2) is connected to the second positive electrode tab (B+2), and a second power supply connection end thereof is connected to the first negative electrode tab (B-1). An output end of the electrical-signal conversion module (2) is connected to the first positive electrode tab (B+1) and the second positive electrode tab (B+2), and/or the output end of the electrical-signal conversion module (2) is connected to the first negative electrode tab (B-1) and the second negative electrode tab (B-2). The control module (3) is connected to the electrical-signal conversion module (2) and is used for controlling the electrical-signal conversion module (2) according to the temperature of the battery (1).
Inventors:
ZHOU JIHAO (CN)
LI KANGQUAN (CN)
CAI XIAOLI (CN)
LI KANGQUAN (CN)
CAI XIAOLI (CN)
Application Number:
PCT/CN2023/116057
Publication Date:
March 07, 2024
Filing Date:
August 31, 2023
Export Citation:
Assignee:
BYD CO LTD (CN)
International Classes:
H01M10/052; H01M10/42; H01M10/615; H01M50/531
Domestic Patent References:
| WO2019041144A1 | 2019-03-07 |
Foreign References:
| CN113782811A | 2021-12-10 | |||
| CN114497817A | 2022-05-13 | |||
| CN111613854A | 2020-09-01 | |||
| CN111584971A | 2020-08-25 | |||
| CN106450582A | 2017-02-22 | |||
| CN218242002U | 2023-01-06 |
Attorney, Agent or Firm:
JW&PARTNERS (CN)
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