公开(公告)号：US20230155239A1

公开(公告)日：2023-05-18

申请号：US17987144

申请日：2022-11-15

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Ruisheng MA ,  Jiafei SHI

IPC: H01M50/264 ,  H01M50/209 ,  H01M50/507 ,  H01M50/588 ,  H01M50/593 ,  H01M50/242

CPC classification number: H01M50/264 ,  H01M50/209 ,  H01M50/507 ,  H01M50/588 ,  H01M50/593 ,  H01M50/242

Abstract: A cell fixing apparatus includes a first shell element, a second shell element, and a plurality of pressure-adding beams. The first shell element and the second shell element are relatively fixedly connected, the first shell element and the second shell element are disposed at intervals in a first direction, so that an accommodating cavity is provided between the first shell element and the second shell element, and the accommodating cavity is configured to accommodate the cell. The plurality of pressure-adding beams may be disposed on a surface of the first shell element that is away from the second shell element. The plurality of pressure-adding beams may include a first-type beam and a second-type beam. A size of the first-type beam in the first direction is greater than that of the second-type beam. The pressure-adding beams are used to limit deformation of the cell in the accommodating cavity.

公开(公告)号：US20240088480A1

公开(公告)日：2024-03-14

申请号：US18508973

申请日：2023-11-14

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Inventor： Ruisheng MA ,  Hao MENG

IPC: H01M10/6561 ,  H01M10/613 ,  H02J3/32 ,  H02J3/38

CPC classification number: H01M10/6561 ,  H01M10/613 ,  H02J3/32 ,  H02J3/38 ,  H02J2300/24

Abstract: An energy storage device includes a first cell, a second cell, and an air channel mechanical part. The first cell and the second cell are disposed outside the air channel mechanical part and are sequentially arranged between the air inlet end and the air outlet end, the air channel mechanical part includes a first air channel region and a second air channel region, the first air channel region is disposed correspondingly with the first cell, the second air channel region is disposed correspondingly with the second cell, and a heat dissipation area per unit volume of the second air channel region is greater than a heat dissipation area per unit volume of the first air channel region, to reduce a temperature difference between the second cell and the first cell.

公开(公告)号：US20240162528A1

公开(公告)日：2024-05-16

申请号：US18226995

申请日：2023-07-27

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Inventor： Hao MENG ,  Kui ZHOU ,  Ruisheng MA

IPC: H01M10/6566 ,  H01M10/48 ,  H01M10/613 ,  H01M10/617 ,  H01M10/625 ,  H01M10/6556 ,  H01M10/6563 ,  H01M50/249 ,  H01M50/367 ,  H01M50/593

CPC classification number: H01M10/6566 ,  H01M10/486 ,  H01M10/613 ,  H01M10/617 ,  H01M10/625 ,  H01M10/6556 ,  H01M10/6563 ,  H01M50/249 ,  H01M50/367 ,  H01M50/593 ,  H01M2220/20

Abstract: This application relates to a battery module, including a case, a first electrochemical cell layer, a second electrochemical cell layer, a middle separator, and an air supply unit. A main air duct, a first secondary air duct, and a second secondary air duct are disposed in the middle separator. The main air duct penetrates the middle separator. A first ventilation hole and a second ventilation hole are disposed on the case. In this application, by using the middle separator in the battery module, heat dissipation effect of air intake on three sides and air exhaust on one side may be implemented, and a cooling capability for the first electrochemical cell layer and the second electrochemical cell layer may be improved, thereby reducing a temperature difference of the battery module, and improving a service life of the battery module. This application further relates to a transportation means equipped with the battery module.