公开(公告)号：US20210126293A1

公开(公告)日：2021-04-29

申请号：US17017461

申请日：2020-09-10

Applicant: BYD COMPANY LIMITED

Inventor： Chuanfu WANG ,  Long HE ,  Huajun SUN ,  Zhipei LU ,  Jianhua ZHU ,  Yan ZHU ,  Shichao HU

IPC: H01M10/42 ,  H01M2/10 ,  H01M2/36 ,  H01M10/0525 ,  H01M10/0585

Abstract: The present invention provides a lithium-ion battery, including: a housing and a separator located inside the housing, where the separator separates internal space of the housing into a plurality of accommodation cavities, battery core sets are disposed inside the accommodation cavities, the battery core sets each include at least one pole shank, and the battery core sets are connected in series; and at least one separator is provided with a liquid injection hole, and the liquid injection hole is used to connect two adjacent accommodation cavities on two sides of the separator; and a block mechanism, where the block mechanism is located inside the housing, the block mechanism enables the liquid injection hole to be in a predetermined state, and the predetermined state includes an open state and a closed state. The battery provided in the present invention ensures isolation and safety of each battery core set while facilitating liquid injection.

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。

公开(公告)号：US20230017407A1

公开(公告)日：2023-01-19

申请号：US17778731

申请日：2020-11-18

Applicant: BYD COMPANY LIMITED

Inventor： Jianhua ZHU ,  Yan ZHU ,  Dongjun DENG

IPC: H01M50/645 ,  H01M50/474 ,  H01M50/51 ,  H01M50/682 ,  H01M50/184

Abstract: A battery, a battery module, a battery pack, and an electric vehicle. The battery includes a housing, end covers, partition plates, and a number of electrode core assemblies. The end covers are arranged on two opposite ends of the housing for sealing an internal space of the housing. The partition plates are spaced apart from each other in the housing for separating the internal space of the housing into a number of accommodating cavities successively arranged along a first direction. Each electrode core assembly is arranged in each accommodating cavity. The electrode core assembly includes at least one electrode core. The number of electrode core assemblies are successively arranged along the first direction and connected in series. The partition plate is provided with an electrolyte solution filling channel. The electrolyte solution filling channel is in communication with the accommodating cavity on at least one side of the partition plate, and is configured for electrolyte solution to be filled into the accommodating cavity from an outside of the battery. The electrolyte solution filling channel is in a closed state upon completion of the electrolyte solution filling, to prevent communication between the accommodating cavity and the outside of the battery. A through hole is provided at a position of the housing corresponding to the electrolyte solution filling channel on the partition plate.

公开(公告)号：US20210126231A1

公开(公告)日：2021-04-29

申请号：US17019852

申请日：2020-09-14

Applicant: BYD COMPANY LIMITED

Inventor： Chuanfu WANG ,  Long HE ,  Huajun SUN ,  Jianhua ZHU ,  Zhipei LU ,  Yan ZHU ,  Shichao HU

IPC: H01M2/10 ,  B60L50/64 ,  H01M2/36

Abstract: A battery includes a case and a battery core assembly disposed in the case, the battery core assembly includes a plurality of battery core groups and an receiving space holding the plurality of battery core groups, the battery core groups are connected in series, and the battery core group includes at least one battery core; a separator plate is disposed between at least two adjacent battery core groups, the separator plate divides the receiving space into a plurality of receiving cavities, each of the receiving cavities holds one or more battery core groups , and a cavity wall of the receiving cavity comprised by a connection of the separator plate and a separation membrane; and the battery further includes a liquid injection channel and the liquid injection channel in a sealed state, the liquid injection channel is disposed on at least one of the separation membranes and the separator plates.

公开(公告)号：US20190334146A1

公开(公告)日：2019-10-31

申请号：US16474868

申请日：2017-06-08

Applicant: BYD COMPANY LIMITED

Inventor： Qing LAI ,  Zhiwei TONG ,  Yan ZHU ,  Jianhua ZHU

IPC: H01M2/12 ,  A62C3/16 ,  A62C31/00

Abstract: A protection device includes a casing assembly, a sealing film, and a temperature-sensitive actuating piece. A receiving chamber for receiving an inert gas is defined in the casing assembly. One end of the receiving chamber is provided with an opening. The sealing film is disposed at the opening to seal the receiving chamber. The actuating piece is disposed in the receiving chamber, and the actuating piece is provided with a piercing protrusion. When the actuating piece is deformed, the piercing protrusion pierces the sealing film.

公开(公告)号：US20230082924A1

公开(公告)日：2023-03-16

申请号：US17989608

申请日：2022-11-17

Applicant: BYD COMPANY LIMITED

Inventor： Xiaopeng WANG ,  Qingbo PENG ,  Zhipei LU ,  Jianhua ZHU ,  Yan ZHU

IPC: H01M50/112 ,  H01M50/242 ,  H01M50/383 ,  H01M10/6551 ,  B60L50/64 ,  H01M50/249

Abstract: A battery pack housing includes a housing body, the housing body includes multiple connected sub-housings, and at least one reinforcing plate is disposed in at least one of the sub-housings. Each of the sub-housings includes a top plate and a bottom plate arranged opposite to each other in a first direction, the first direction is a height direction of the housing, the at least one reinforcing plate is located between a top plate and a bottom plate, the at least one reinforcing plate is connected to the top plate and the bottom plate, and the at least one reinforcing plate divides an interior of the at least one of the sub-housings into multiple accommodating cavities. A mounting portion is provided on the housing and is configured to be connected and fixed to an external load.

公开(公告)号：US20220407186A1

公开(公告)日：2022-12-22

申请号：US17778799

申请日：2020-11-19

Applicant: BYD COMPANY LIMITED

Inventor： Jianhua ZHU ,  Yan ZHU ,  Xinyue WANG

IPC: H01M50/474 ,  H01M50/112 ,  H01M50/148 ,  H01M50/477 ,  H01M50/531 ,  H01M50/636 ,  H01M50/204

Abstract: A battery is provided. The battery includes: a housing and a plurality of accommodating cavities provided in the housing. Two adjacent accommodating cavities are separated by a partition plate. An electrode core assembly is arranged in each of the accommodating cavities. A plurality of electrode core assemblies are sequentially arranged along the first direction and connected in series. A spacer is arranged between the end of the electrode core assembly along the first direction and the partition plate.

公开(公告)号：US20200058908A1

公开(公告)日：2020-02-20

申请号：US16499790

申请日：2018-03-16

Applicant: BYD COMPANY LIMITED

Inventor： Weixin ZHENG ,  Xi SHEN ,  Jianhua ZHU ,  Luxia JIANG ,  Yan ZHU

IPC: H01M2/02 ,  B60K1/04 ,  B60L50/64

Abstract: A battery cover assembly includes a cover plate, an electrode inner terminal and an electrode outer terminal. The electrode inner terminal is electrically connected to the electrode outer terminal through a current interrupt structure disposed on the cover plate. The current interrupt structure includes a sealed chamber configured to fill a gas-producing medium therein. The sealed chamber is configured to make the gas-producing medium to be electrically connected to positive electrodes and negative electrodes of a battery. When a voltage difference between the positive electrodes and negative electrodes of the battery exceeds a rated value, the gas-producing medium is capable of producing gas, to disrupt the electrical connection between the electrode inner terminal and the electrode outer terminal under the action of the pressure of the gas.

公开(公告)号：US20190273227A1

公开(公告)日：2019-09-05

申请号：US16348419

申请日：2017-11-07

Applicant: BYD COMPANY LIMITED

Inventor： Yi ZENG ,  Weixin ZHENG ,  Jianhua ZHU ,  Yan ZHU

IPC: H01M2/10 ,  H01M10/613

Abstract: A power battery base includes a tray and a liquid cooling tube disposed on the tray, wherein the tray includes a bottom plate and side plates disposed around the periphery of the bottom plate, the bottom plate and the side plates jointly form a receiving cavity for receiving a power battery pack, the bottom plate is provided with at least one beam, the beam divides the bottom plate into at least two sub-bottom plates, the liquid cooling tube is laid on at least one of the sub-bottom plates, and the liquid cooling tube is disposed across the beam that it passes through.

公开(公告)号：US20140178744A1

公开(公告)日：2014-06-26

申请号：US14193613

申请日：2014-02-28

Applicant: BYD COMPANY LIMITED ,  SHENZHEN BYD AUTO R&D COMPANY LIMITED

Inventor： Jianhua ZHU ,  Qing LAI ,  Zhiwei TONG ,  Luxia JIANG

IPC: H01M2/06 ,  H01M2/02 ,  H01M2/30

CPC classification number: H01M2/06 ,  H01M2/024 ,  H01M2/08 ,  H01M2/202 ,  H01M2/305 ,  H01M2/32

Abstract: A battery terminal includes an outer terminal segment, the outer terminal segment being made of a first conductive material; an inner terminal segment being made of a second conductive material different from the first conductive material and having an upper end connected to a lower end of the outer terminal segment forming a connection portion between the upper end of the inner terminal segment and the lower end of the outer terminal segment, and a protection member around the connection portion. With the battery terminal according to an embodiment of the present invention into batteries, adjacent batteries can be connected together more reliably.

Abstract translation: 电池端子包括外端子段，外端子段由第一导电材料制成; 内部端子段由与第一导电材料不同的第二导电材料制成，并且具有连接到外部端子段的下端的上端，其形成内部端子段的上端和下端之间的连接部分 外部端子段和围绕连接部分的保护构件。 根据本发明的实施例的电池端子变成电池，相邻的电池可以更可靠地连接在一起。