公开(公告)号：US20240356115A1

公开(公告)日：2024-10-24

申请号：US18758684

申请日：2024-06-28

Applicant: BYD COMPANY LIMITED

Inventor： Jiancheng LUO ,  Wansong YUAN ,  Xinyue WANG ,  Yukai ZHAO ,  Pingan DUAN

IPC: H01M50/129 ,  H01M50/105 ,  H01M50/119 ,  H01M50/121 ,  H01M50/133

CPC classification number: H01M50/129 ,  H01M50/105 ,  H01M50/119 ,  H01M50/121 ,  H01M50/133 ,  H01M2220/20

Abstract: An aluminum plastic film of a battery, includes a pit and a flanging. The pit is used for placing a battery core and has a bottom surface that is connected to a first side elevation and a second side elevation. The first side elevation and the second side elevation are connected to each other. A first lower arc chamfer is formed at the joint of the bottom surface and the first side elevation, and a second lower arc chamfer is formed at the joint of the bottom surface and the second side elevation. The flanging is located at the upper periphery rim of the pit and connected to the upper end of the side elevation. A first upper arc chamfer and a second upper arc chamfer are formed at the joints of the first side elevation and the flanging and of the second side elevation and the flanging.

公开(公告)号：US20230231287A1

公开(公告)日：2023-07-20

申请号：US18176179

申请日：2023-02-28

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue WANG ,  Pingan DUAN ,  Han CHENG

IPC: H01M50/536 ,  H01M50/538

CPC classification number: H01M50/536 ,  H01M50/538

Abstract: The present disclosure discloses a battery core, a battery, and a battery pack. The battery core includes: at least one core, where each core has a plurality of tabs, the plurality of tabs successively form, after being converged, a tab end-portion staggered layer region, a tab soldering region, and a pre-soldered press-fit region, parts of the plurality of tabs exposed out of the core form a tab exposure region, and a length of the tab exposed out of the core in the tab exposure region is determined according to a width of the tab end-portion staggered layer region, a width of the tab soldering region, a width of the pre-soldered press-fit region, a thickness of the core, and a tab bending angle of the tab.

公开(公告)号：US20230216153A1

公开(公告)日：2023-07-06

申请号：US18176145

申请日：2023-02-28

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue WANG ,  Da ZHANG ,  Wen LUO

IPC: H01M50/533 ,  H01M50/169

CPC classification number: H01M50/533 ,  H01M50/169

Abstract: A cell has at least one pole core. Each pole core has a plurality of tabs. The plurality of tabs are converged and then soldered to a cover plate of a battery to form a solder joint. When the pole core is parallel to the cover plate before convergence or after the pole core is unfolded, a spacing between the pole core and the solder joint is determined by a thickness of the pole core, a tab bending angle of the tab, and a width of a tab protection plate at the solder joint.

公开(公告)号：US20230207982A1

公开(公告)日：2023-06-29

申请号：US18115212

申请日：2023-02-28

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue WANG ,  Dongjun DENG

IPC: H01M50/533 ,  H01M50/474 ,  H01M50/172 ,  H01M50/54

CPC classification number: H01M50/533 ,  H01M50/474 ,  H01M50/172 ,  H01M50/54

Abstract: A battery includes a casing, a cover plate, and a core. The cover plate is configured to cover the casing, and the core is disposed in the casing. A plurality of tabs is connected between the core and the cover plate. A tab bending space is formed between the cover plate and the core, and the tabs are disposed in the tab bending space. A height of the tab bending space along a first direction is greater than D/10 and less than 3D/4, and D is a thickness of the core.

公开(公告)号：US20230118034A1

公开(公告)日：2023-04-20

申请号：US18084055

申请日：2022-12-19

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue WANG ,  Wansong YUAN ,  Dongjun DENG ,  Kefeng HE

IPC: H01M50/474 ,  H01M50/477 ,  H01M50/483 ,  H01M50/486

Abstract: A battery core and a battery are provided. The battery core includes a plate, a separator, a tab, and an insulating support portion. The tab is connected with the plate. The insulating support portion is arranged on an end of the plate and supports the tab. The tab extends through the insulating support portion and extends outward.

公开(公告)号：US20220416336A1

公开(公告)日：2022-12-29

申请号：US17781306

申请日：2020-10-23

Applicant: BYD COMPANY LIMITED

Inventor： Peng LU ,  Zhipei LU ,  Xinyue WANG ,  Dongjun DENG ,  Yan ZHU

IPC: H01M50/164 ,  H01M50/159 ,  H01M50/543 ,  H01M50/148 ,  H01M50/593

Abstract: A cover plate assembly, a battery, a battery module, a power battery pack, and an electric vehicle are disclosed. The cover plate assembly includes a cover plate body (1), a first electrode terminal (2), a second electrode terminal, and a resistive coating (3). The second electrode terminal is insulatively connected with the cover plate body (1). The first electrode terminal (2) is electrically connected with the cover plate body (1) by the resistive coating (3). The resistive coating (3) includes a weak portion (331). When a current flowing through the resistive coating (3) is greater than a predetermined threshold, the weak portion (331) is melted to disconnect the cover plate body (1) from the first electrode terminal (2).

公开(公告)号：US20220118841A1

公开(公告)日：2022-04-21

申请号：US17421895

申请日：2019-06-21

Applicant: BYD COMPANY LIMITED

Inventor： Long HE ,  Huajun SUN ,  Wenfeng JIANG ,  Zhipei LU ,  Weixin ZHENG ,  Jianglong TANG ,  Yan ZHU ,  Xinyue WANG ,  Kefeng HE

IPC: B60K1/04 ,  B60L50/64 ,  B60L50/60 ,  H01M10/6554 ,  H01M50/209 ,  H01M50/244 ,  H01M50/35 ,  H01M50/342

Abstract: Provided are a power battery pack and an electric vehicle. The power battery pack includes: a pack body, where an accommodating space is defined in the pack body, the pack body is provided therein with at least one widthwise cross beam or lengthwise cross beam, the widthwise cross beam extends along a width direction of the power battery pack, the lengthwise cross beam extends along a length direction of the power battery pack, and the accommodating space is divided into a plurality of accommodating chambers by the at least one widthwise cross beam or lengthwise cross beam; and a plurality of cells, disposed in the pack body and directly arranged in the accommodating chambers, where at least one cell is arranged in each accommodating chamber to form a cell array.

公开(公告)号：US20220102787A1

公开(公告)日：2022-03-31

申请号：US17422084

申请日：2019-06-21

Applicant: BYD COMPANY LIMITED

Inventor： Long HE ,  Huajun SUN ,  Wenfeng JIANG ,  Zhipei LU ,  Weixin ZHENG ,  Jianglong TANG ,  Yan ZHU ,  Xinyue WANG ,  Kefeng HE

IPC: H01M50/103 ,  H01M50/342 ,  H01M50/119 ,  H01M50/531

Abstract: A cell, a power battery pack, and an electric vehicle are provided. The cell includes a cell body, and the cell body has a length L, a width H and a thickness D. The length L of the cell body is greater than the width H, the width H of the cell body is greater than the thickness D, the length L of the cell body is greater than 600 mm, and the length L and the width H of the cell body satisfy L/H=4-21.

公开(公告)号：US20210066700A1

公开(公告)日：2021-03-04

申请号：US17040409

申请日：2019-01-22

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue WANG ,  Han CHENG ,  Keli YANG ,  Luxia JIANG ,  Lingyi PENG

IPC: H01M2/34 ,  H01M2/24 ,  H01M10/38 ,  H01M2/04

Abstract: A battery cell includes: a housing; a cover plate located at an end of the housing; a pole core located in the housing and having an electrode tab electrically connected to a conductive terminal disposed on the cover plate; an inner spacer including a bottom plate disposed on a surface of the pole core facing the cover plate, an end of a connecting plate connected to an edge of the bottom plate and formed in a bent shape with an edge of the bottom plate, and a support plate connected to another end of the connecting plate formed in a bent shape with the support plate and extending from the bottom plate. A part of the electrode tab extends from a surface of the support plate facing the pole core to a surface away from the pole core.

公开(公告)号：US20250070369A1

公开(公告)日：2025-02-27

申请号：US18943542

申请日：2024-11-11

Applicant: BYD COMPANY LIMITED

Inventor： Xinyue WANG ,  Wansong Yuan ,  Han Cheng ,  Qiu Pan ,  Kai Li

IPC: H01M50/325

Abstract: A vehicle has a battery pack. The battery pack includes batteries or a battery module. The battery module includes batteries. Each battery includes a battery casing and an explosion-proof valve. The explosion-proof valve is arranged on the battery casing. The explosion-proof valve is provided with a notch groove. The explosion-proof valve includes an opening area. In the depth direction of the notch groove, the shape of the orthographic projection of the opening area is non-circular. The outer edge of the orthographic projection of the opening area is a preset opening boundary, the area of the orthographic projection of the opening area being S1, the area of the orthographic projection of the explosion-proof valve being S, S1 and S meeting: S1/S≥3, and the units of S1 and S both being mm2.