公开(公告)号：US20220393321A1

公开(公告)日：2022-12-08

申请号：US17892609

申请日：2022-08-22

Applicant: BYD COMPANY LIMITED

Inventor： Huajun SUN ,  Gaowu WANG ,  Guoxiong LIU ,  Yan ZHU

IPC: H01M50/583 ,  H01M50/209 ,  H01M50/51 ,  H01M50/509 ,  H01M50/55 ,  H01M50/249 ,  B60L50/64

Abstract: A battery pack includes at least one battery unit. The battery unit includes at least one battery string. The battery string includes one or at least two cells. A voltage difference across the battery string is less than or equal to 60 V. When the battery string includes at least two cells, the cells in the battery string are arranged sequentially along a first direction, and the first direction is parallel to a direction from the tail of the vehicle to the head of the vehicle.

公开(公告)号：US20230093575A1

公开(公告)日：2023-03-23

申请号：US18070850

申请日：2022-11-29

Applicant: BYD COMPANY LIMITED

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

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

Abstract: 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：US20230216049A1

公开(公告)日：2023-07-06

申请号：US17928554

申请日：2021-05-24

Applicant: BYD COMPANY LIMITED

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

IPC: H01M4/58 ,  H01M10/0525 ,  H01M50/46 ,  H01M4/04 ,  H01M4/66 ,  H01M50/103 ,  H01M50/136 ,  H01M50/553

CPC classification number: H01M4/5825 ,  H01M10/0525 ,  H01M50/46 ,  H01M4/0404 ,  H01M4/661 ,  H01M50/103 ,  H01M50/136 ,  H01M50/553 ,  H01M2004/028

Abstract: The present disclosure provides a lithium ion battery, a power battery module, 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:





3
≤
A

=



d
2

⁢
ρ
⁢

C
p

×

(


1.35
L

W

)


≤
850.

公开(公告)号：US20240113384A1

公开(公告)日：2024-04-04

申请号：US18531937

申请日：2023-12-07

Applicant: BYD COMPANY LIMITED

Inventor： Tao CHEN ,  Guoxiong LIU ,  Xiaorui ZHANG ,  Jian LIU ,  Gaowu WANG

IPC: H01M50/358 ,  B60R16/02 ,  B60R16/033 ,  H01M50/209 ,  H01M50/271 ,  H01M50/298 ,  H01M50/342

CPC classification number: H01M50/358 ,  B60R16/0207 ,  B60R16/033 ,  H01M50/209 ,  H01M50/271 ,  H01M50/298 ,  H01M50/3425 ,  H01M2220/20

Abstract: A battery module, a battery pack, and a vehicle are provided. The battery module includes a battery body, an end plate, and a cover body. The battery body includes multiple battery cells. The multiple battery cells are arranged side by side. The end plate is arranged on an end portion of the battery body. According to the battery module, the end plate is arranged on the end portion of the battery body, the end plate is provided with a first exhaust channel therein, the cover body is engaged with multiple pressure relief valves to form a second exhaust channel, and the second exhaust channel is in communication with the first exhaust channel.

公开(公告)号：US20230086598A1

公开(公告)日：2023-03-23

申请号：US18070876

申请日：2022-11-29

Applicant: BYD COMPANY LIMITED

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

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M4/66 ,  H01M4/58 ,  H01M4/583

Abstract: 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 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: 1 ≤ d 2 ⁢ ρ ⁢ C p × ( 1.12 nL ( n + 1 ) ⁢ W ) ≤ 500.

公开(公告)号：US20160006013A1

公开(公告)日：2016-01-07

申请号：US14655537

申请日：2013-09-12

Applicant: BYD COMPANY LIMITED

Inventor： Xi SHEN ,  Luxia JIANG ,  Jianhua ZHU ,  Shichao HU ,  Gaowu WANG ,  Hongjuan GU

IPC: H01M2/34 ,  H01M10/0525

CPC classification number: H01M2/34 ,  H01M10/0413 ,  H01M10/0431 ,  H01M10/0463 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587 ,  H01M10/617 ,  H01M10/654 ,  H01M10/6553 ,  H01M2200/00 ,  H01M2220/20 ,  Y02E60/122 ,  Y02P70/54

Abstract: A battery includes a shell, a core and a protection component received in the shell. The core includes a first electrode tab connected to a first current collector and a second electrode tab connected to a second current collector of the core. The protection component includes two insulating layers and a conducting layer disposed between two insulating layers. The conducting layer defines a first end electrically connected to the first electrode tab and a second end configured as a free end, and an outmost current collector of the core is configured by the second current collector.

Abstract translation: 电池包括壳体，芯部和接收在壳体中的保护部件。 芯包括连接到第一集电器的第一电极片和连接到芯的第二集电器的第二电极片。 保护部件包括两个绝缘层和设置在两个绝缘层之间的导电层。 导电层限定电连接到第一电极接线片的第一端和被配置为自由端的第二端，并且芯的最外部的集流器由第二集电器构成。