公开(公告)号：US11959970B2

公开(公告)日：2024-04-16

申请号：US18300116

申请日：2023-04-13

Applicant: Beijing Institute of Technology

Inventor： Huixing Meng ,  Mengyao Geng ,  Cheng Wang ,  Jinduo Xing

IPC: G01R31/387 ,  G01R31/367

CPC classification number: G01R31/387 ,  G01R31/367

Abstract: One or more embodiments of the present specification provide a method and device for capacity degradation prediction of a lithium-ion battery. The method comprises the following steps: acquiring an original battery discharge capacity; decomposing the original battery discharge capacity through a predetermined mode decomposition method to obtain battery discharge capacities composed of a plurality of different frequency signals; inputting the respective frequency signals into a pre-constructed capacity prediction model to obtain capacity prediction results corresponding to the respective frequency signals; selecting capacity prediction result that satisfies a predetermined relevance condition corresponding to the respective frequency signals; and reconstructing the finally predicted battery discharge capacity according to the capacity prediction result that satisfies the predetermined relevance condition.

公开(公告)号：US11951343B1

公开(公告)日：2024-04-09

申请号：US18520483

申请日：2023-11-27

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Zhiyue Han ,  Cheng Wang ,  Xinrui Zhang

IPC: A62C35/02 ,  A62C35/10

CPC classification number: A62C35/023 ,  A62C35/10

Abstract: A temperature-sensitive automatic rapid gas generation fire extinguishing device is provided, including a box body; a plurality of heat absorption fire extinguishing units are placed on an inner side wall of the box body, and a first trigger unit is arranged between one of the heat absorption fire extinguishing units close to the first baffle and the inner side wall of the box body; the one of the heat absorption fire extinguishing units triggers the first baffle to move down through the first trigger unit, and a relatively closed space is formed in the box body; a plurality of gas generation fire extinguishing units are placed on an inner side wall of the box body, and a second trigger unit is arranged between one of the gas generation fire extinguishing units close to the second baffle and the inner side wall of the box body.