公开(公告)号：US20230110488A1

公开(公告)日：2023-04-13

申请号：US17792246

申请日：2021-01-08

申请人： BYD COMPANY LIMITED

发明人： Yan ZHU ,  Shichao HU

IPC分类号： H01M50/119 ,  B60L50/64 ,  H01M50/133 ,  H01M50/15 ,  H01M50/159 ,  H01M50/184 ,  H01M50/209 ,  H01M10/04

摘要： A battery (100), a battery module, a battery pack (200), and an electric vehicle are provided. The battery (100) includes a metal housing (11), a packaging member, and multiple electrode core assemblies (12). The packaging member includes two packaging portions (13) that are arranged opposite to each other. The packaging member has an internal space. The two packaging portions (13) are joined at a predetermined position to divide the internal space of the packaging member into multiple sealed accommodating cavities. At least one sealed accommodating cavity is provided with the electrode core assembly (12). The metal housing (11) is sleeved outside the packaging member.

公开(公告)号：US20230102725A1

公开(公告)日：2023-03-30

申请号：US18077612

申请日：2022-12-08

申请人： BYD COMPANY LIMITED

发明人： Yue ZHANG ,  Yanfei ZHOU ,  Zhonglin ZHANG ,  Xiaofeng GU

IPC分类号： H01M50/264 ,  H01M50/209

摘要： A battery pack includes a box body including a mounting space. A cell array is disposed in the mounting space and includes multiple battery cores arranged in a first direction, and the first direction is parallel to a thickness direction of the battery cores. An adjustment shim set includes at least one adjustment shim and is disposed in the mounting space on a first side of the cell array in the first direction, and a first wedge-shaped member is disposed in the mounting space on a second side of the cell array in the first direction or a first side of the at least one adjustment shim away from the cell array, to press the cell array and the adjustment shim set. The number of adjustment shims of the adjustment shim set is configured to generate a pressure on the cell array in the mounting space to reach a pre-tightening force.

公开(公告)号：US20230093575A1

公开(公告)日：2023-03-23

申请号：US18070850

申请日：2022-11-29

申请人： BYD COMPANY LIMITED

发明人： Huajun SUN ,  Gaowu WANG ,  Wensheng LIN ,  Ling ZHAO ,  Yan ZHU

IPC分类号： H01M10/0587 ,  H01M10/0525 ,  H01M50/531 ,  H01M4/70 ,  H01M4/66 ,  H01M50/103

摘要： The present disclosure provides a lithium ion battery, a battery pack, an electric vehicle and an energy storage device. The lithium ion battery includes a casing and an electrode core packaged in the casing. The electrode core includes a positive electrode sheet, a negative electrode sheet, and a separator located between the positive electrode sheet and the negative electrode sheet. The positive electrode sheet includes a positive electrode current collector and a positive electrode material layer loaded on the positive electrode current collector. Among the positive electrode current collector, the positive electrode material layer, the negative electrode sheet, and the separator, the one with the lowest melting point is defined as an effective component. The effective component meets: 80

公开(公告)号：US20230080549A1

公开(公告)日：2023-03-16

申请号：US17988120

申请日：2022-11-16

申请人： BYD COMPANY LIMITED

发明人： Shichao HU ,  Mingming ZHANG

IPC分类号： H01M50/291 ,  H01M50/105 ,  H01M50/211 ,  H01M50/588 ,  H01M50/593 ,  H01M50/293 ,  H01M50/514

摘要： A battery includes a housing and multiple electrode core assemblies in the housing. The electrode core assemblies are connected. Each electrode core assembly includes an encapsulation film and an electrode core arranged in an accommodating cavity defined by the encapsulation film. An insulating spacer is arranged between two connected electrode core assemblies and has a through hole. The electrode core assembly includes a first electrode and a second electrode. The first electrode of one electrode core assembly is connected to the second electrode of the other electrode core assembly of the connected two electrode core assemblies at a connecting part accommodated in the through hole. The insulating spacer includes a peripheral surface facing an inner surface of the housing. A metal member is arranged on the peripheral surface of the insulating spacer. The metal member is connected to the housing to fix the insulating spacer with the housing.

公开(公告)号：US20230079318A1

公开(公告)日：2023-03-16

申请号：US17991693

申请日：2022-11-21

申请人： BYD COMPANY LIMITED

发明人： Huajun SUN ,  Yan ZHU

IPC分类号： H01M50/289 ,  H01M50/249 ,  H01M50/271 ,  H01M50/51 ,  H01M50/512 ,  H01M50/211 ,  H01M50/121 ,  H01M50/124 ,  B60L50/64

摘要： This application provides a battery pack, a vehicle, and an energy storage device. The battery pack includes at least one battery sequence. The battery sequence includes a plurality of batteries. A thickness of each battery extends along a first direction. The plurality of batteries are successively arranged along the first direction to form the battery sequence. At least one of the batteries includes a casing and a core packaged in the casing. A gap exists between at least two neighboring batteries. A ratio of the gap to the thickness of the battery is c, and c satisfies the following relational expression: c/a=0.01-0.5, where a represents an expansion rate of the battery.

公开(公告)号：US20230076552A1

公开(公告)日：2023-03-09

申请号：US17988053

申请日：2022-11-16

申请人： BYD COMPANY LIMITED

发明人： Shichao HU ,  Yan ZHU

IPC分类号： H01M50/538 ,  H01M50/289 ,  H01M50/682

摘要： A battery core assembly includes an encapsulation film and multiple electrode core assemblies disposed in the encapsulation film. The electrode core assemblies are connected to form an electrode core string, and each of the electrode core assemblies includes at least one electrode core. A spacer is disposed between two adjacent electrode core assemblies, the first spacer divides an accommodating space inside the encapsulation film into multiple accommodating cavities, cavity walls of the accommodating cavities includes the first spacer and the encapsulation film connected to the first spacer, and the electrode core assemblies are respectively accommodated in the accommodating cavities. The first spacer includes at least one first liquid reservoir, and the at least one first liquid reservoir communicates with one of accommodating cavities on both sides of the first spacer.

公开(公告)号：US20230075479A1

公开(公告)日：2023-03-09

申请号：US17988097

申请日：2022-11-16

申请人： BYD COMPANY LIMITED

发明人： Shichao HU ,  Yan ZHU

IPC分类号： H01M50/533 ,  H01M50/105 ,  H01M50/178 ,  H01M50/548 ,  H01M50/566 ,  H01M50/474 ,  H01M50/477 ,  H01M50/586 ,  H01M50/593 ,  H01M50/609

摘要： The present disclosure provides a battery core assembly, a battery, a battery pack, and a vehicle. The battery core assembly includes an encapsulation film and an electrode core assembly encapsulated in the encapsulation film. The electrode core assembly includes an electrode core assembly body and two electrode lead-out members of opposite polarities electrically connected to the electrode core assembly body. The electrode core assembly body includes at least two electrode cores connected in parallel. Each of the electrode cores includes an electrode core body and two tabs of opposite polarities that are electrically connected to the electrode core body. The electrode core assembly body further includes a tab support. The two electrode lead-out members are respectively electrically connected to one of the tab supports located two sides of the electrode core assembly body in a first direction.

公开(公告)号：US20230072369A1

公开(公告)日：2023-03-09

申请号：US17988023

申请日：2022-11-16

申请人： BYD COMPANY LIMITED

发明人： Shichao HU ,  Mingming ZHANG ,  Yan ZHU

IPC分类号： H01M50/289 ,  H01M50/242 ,  H01M50/51 ,  H01M50/249

摘要： A battery includes a housing and multiple electrode core assemblies in the housing. Each electrode core assembly includes a packing film and an electrode core located in an accommodating cavity defined by the packing film. A spacer is arranged between two adjacent electrode core assemblies connected in series. Each electrode core assembly includes a first electrode and a second electrode extending out of the packing film. The first electrode of a first electrode core assembly is connected to the second electrode of a second electrode core assembly of the two adjacent electrode core assemblies through a connecting portion in a through hole. The spacer includes an outer surface facing the housing. A first positioning portion is formed on the outer surface, A second positioning portion corresponding to the first positioning portion is formed on the inner surface of the housing and is coupled with the first positioning portion.

公开(公告)号：US20230040013A1

公开(公告)日：2023-02-09

申请号：US17792658

申请日：2021-01-04

申请人： BYD COMPANY LIMITED

发明人： Long HE ,  Huajun SUN ,  Shichao HU ,  Zhiyong AO ,  Yan ZHU

IPC分类号： H01M50/24 ,  H01M50/249 ,  H01M50/271 ,  H01M50/30 ,  H01M50/51 ,  H01M50/224

摘要： A battery pack and an electric vehicle are provided. The battery pack includes a battery sequence. The battery sequence includes multiple cells. A thickness of each cell extends along a first direction. The multiple cells are arranged in sequence along the first direction to form the battery sequence. At least one of the cells includes a metal shell and an electrode core packaged in the metal shell. An air pressure inside the metal shell is lower than an air pressure outside the metal shell. A gap is provided between at least two adjacent cells. A ratio of the gap to the thickness of the cell ranges from 0.001 to 0.15.

公开(公告)号：US20230030577A1

公开(公告)日：2023-02-02

申请号：US17777854

申请日：2020-11-27

申请人： BYD COMPANY LIMITED

发明人： Hai XIAO ,  Jinlong QUAN ,  Haidong KANG ,  Jiye HUANG ,  Ye YUAN

IPC分类号： H01R4/02 ,  H01R4/62

摘要： A structure for connecting an aluminum cable and a terminal includes an aluminum cable and a terminal. The aluminum cable includes a cable core. The cable core is constructed with a cable welding portion. The terminal is welded to the cable welding portion. A nominal cross-sectional area of the cable core is M, and a welding area S between the cable welding portion and the terminal meets 5*M≤S≤6*M.