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11.
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:US20230054089A1
公开(公告)日:2023-02-23
申请号:US17792305
申请日:2020-12-29
Applicant: BYD COMPANY LIMITED
Inventor: Long HE , Huajun SUN , Yan ZHU , Shichao HU
IPC: H01M50/186 , H01M50/46 , H01M50/358 , H01M50/446 , H01M50/489 , H01M50/531
Abstract: A cell, a battery pack, and an electric vehicle are provided in the present disclosure. The cell includes a hermetical metal housing and at least two hermetical accommodating cavities, multiple electrode core assemblies, and an encapsulation film arranged in the metal housing. The electrode core assemblies are arranged along a first direction. The electrode core assemblies are connected in series. A length of each electrode core assembly extends along the first direction. The electrode core assembly includes an electrode core assembly body and a first electrode and a second electrode configured to lead out a current. The first electrode and the second electrode are respectively arranged on two sides of the electrode core assembly body along the first direction. At least one of the accommodating cavities is defined by the encapsulation film, and the electrode core assembly body is arranged in the accommodating cavity. A length of the cell extends along the first direction. The length of the cell ranges from 400 mm to 2500 mm. A thickness of the cell extends along a second direction perpendicular to the first direction. A ratio of the length to the thickness of the cell ranges from 5 to 250.
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公开(公告)号:US20230023909A1
公开(公告)日:2023-01-26
申请号:US17780892
申请日:2020-10-22
Applicant: BYD COMPANY LIMITED
Inventor: Long HE , Huajun SUN , Zhipei LU , Long WAN , Yan ZHU
IPC: H01M50/209 , H01M50/236 , H01M50/244 , H01M50/249 , H01M50/26
Abstract: A battery pack and an electric vehicle are provided. The battery pack includes a cell array and two first reinforcing plates. The cell array includes a number of cells. Each of the cells is defined with a length L, a thickness D, and a height H between the length L and the thickness D. The number of cells are arranged along a thickness direction, and the cells are adhered to each other by a structural adhesive. The two first reinforcing plates are arranged opposite to each other and are respectively adhered to two surfaces of the cell array along the arrangement direction of the cells, and are configured to constrain relative positions between the cells.
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公开(公告)号:US20220181730A1
公开(公告)日:2022-06-09
申请号:US17437348
申请日:2019-07-25
Applicant: BYD COMPANY LIMITED
Inventor: Huajun SUN , Zhipei LU , Jianglong TANG , Wenfeng JIANG , Yan ZHU
IPC: H01M50/209 , H01M50/249
Abstract: The present disclosure relates to a power battery pack, an energy storage device, an electric vehicle. The power battery pack includes an accommodating device and a plurality of cells, the accommodating device includes a plurality of accommodating regions, and each accommodating region has a first side edge and a second side edge and cells disposed between the first side edge and the second side edge. A distance between the first side edge and the second side edge along a first direction varies with different accommodating regions, each cell includes a first end and a second end, and a distance between the first end and the second end matches a distance between a corresponding first side edge and a corresponding second side edge.
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公开(公告)号:US20220126666A1
公开(公告)日:2022-04-28
申请号:US17422130
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 , B60L50/60 , B60L50/64 , H01M50/209 , H01M50/249 , H01M50/342
Abstract: Provided are a power battery pack and an electric vehicle. The power battery pack includes: a pack body; and a plurality of cells, directly arranged in the pack body. The cell extends from a first side of the pack body to a second side of the pack body, and the first side and the second side are disposed opposite to each other. The first side of the pack body is provided with a first side wall, the second side of the pack body is provided with a second side wall, an end of the cell is supported by the first side wall, and the other end of the cell is supported by the second side wall.
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公开(公告)号:US20240250359A1
公开(公告)日:2024-07-25
申请号:US18608980
申请日:2024-03-19
Applicant: BYD COMPANY LIMITED
Inventor: Long HE , Huajun SUN , Wenfeng JIANG , Zhipei Lu , Weixin ZHENG , Jianglong TANG , Yan ZHU , Xinyue WANG , Kefeng HE
IPC: H01M50/209 , B60K1/04 , B60L50/60 , B60L50/64 , B60L58/26 , H01M10/052 , H01M10/42 , H01M10/613 , H01M10/625 , H01M10/647 , H01M10/6551 , H01M10/6554 , H01M50/103 , H01M50/119 , H01M50/244 , H01M50/249 , H01M50/271 , H01M50/317 , H01M50/342 , H01M50/35 , H01M50/383 , H01M50/531 , H01M50/543
CPC classification number: H01M50/209 , B60K1/04 , B60L50/64 , B60L50/66 , H01M10/052 , H01M10/425 , H01M10/613 , H01M10/625 , H01M10/647 , H01M10/6551 , H01M10/6554 , H01M50/103 , H01M50/119 , H01M50/244 , H01M50/249 , H01M50/271 , H01M50/317 , H01M50/342 , H01M50/3425 , H01M50/35 , H01M50/383 , H01M50/531 , H01M50/543 , B60K2001/0405 , B60K2001/0438 , B60L58/26 , H01M2010/4271 , H01M2220/20
Abstract: A battery pack and an electric vehicle are provided. The battery pack includes a housing; and a plurality of cells, provided in the housing, wherein the sum V1 of the volumes of the plurality of cells and the volume V2 of the battery pack satisfy V1/V2≥55%. The battery pack has a first direction and a second direction perpendicular to each other. A length direction of the cell is arranged along the first direction of the battery pack, and the plurality of cells are arranged along the second direction of the battery pack. The cell comprises a cell body, and the length of the cell body is 400-2500 mm.
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公开(公告)号:US20240222764A1
公开(公告)日:2024-07-04
申请号:US18604566
申请日:2024-03-14
Applicant: BYD COMPANY LIMITED
Inventor: Long HE , Huajun SUN , Wenfeng JIANG , Zhipei LU , Weixin ZHENG , Jianglong TANG , Yan ZHU , Xinyue WANG , Kefeng HE
IPC: H01M50/209 , B60K1/04 , B60L50/60 , B60L50/64 , H01M10/052 , H01M10/42 , H01M10/613 , H01M10/625 , H01M10/647 , H01M10/6551 , H01M10/6554 , H01M50/103 , H01M50/119 , H01M50/244 , H01M50/249 , H01M50/271 , H01M50/317 , H01M50/342 , H01M50/35 , H01M50/383 , H01M50/531 , H01M50/543 , B60L58/26
CPC classification number: H01M50/209 , B60K1/04 , B60L50/64 , B60L50/66 , H01M10/052 , H01M10/425 , H01M10/613 , H01M10/625 , H01M10/647 , H01M10/6551 , H01M10/6554 , H01M50/103 , H01M50/119 , H01M50/244 , H01M50/249 , H01M50/271 , H01M50/317 , H01M50/342 , H01M50/3425 , H01M50/35 , H01M50/383 , H01M50/531 , H01M50/543 , B60K2001/0405 , B60K2001/0438 , B60L58/26 , H01M2010/4271 , H01M2220/20
Abstract: A battery pack and an electric vehicle are provided. The battery pack includes a housing; and a plurality of cells, provided in the housing, wherein the sum V1 of the volumes of the plurality of cells and the volume V2 of the battery pack satisfy V1/V2≥255%. The battery pack has a first direction and a second direction perpendicular to each other. A length direction of the cell is arranged along the first direction of the battery pack, and the plurality of cells are arranged along the second direction of the battery pack. The cell comprises a cell body, and the length of the cell body is 400-2500 mm.
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公开(公告)号:US20240128565A1
公开(公告)日:2024-04-18
申请号:US18398950
申请日:2023-12-28
Applicant: BYD COMPANY LIMITED
Inventor: Long HE , Huajun SUN , Wenfeng JIANG , Zhipei LU , Weixin ZHENG , Jianglong TANG , Yan ZHU , Xinyue WANG , Kefeng HE
IPC: H01M50/209 , B60K1/04 , B60L50/60 , B60L50/64 , H01M10/052 , H01M10/42 , H01M10/613 , H01M10/625 , H01M10/647 , H01M10/6551 , H01M10/6554 , H01M50/103 , H01M50/119 , H01M50/244 , H01M50/249 , H01M50/271 , H01M50/317 , H01M50/342 , H01M50/35 , H01M50/383 , H01M50/531 , H01M50/543
CPC classification number: H01M50/209 , B60K1/04 , B60L50/64 , B60L50/66 , H01M10/052 , H01M10/425 , H01M10/613 , H01M10/625 , H01M10/647 , H01M10/6551 , H01M10/6554 , H01M50/103 , H01M50/119 , H01M50/244 , H01M50/249 , H01M50/271 , H01M50/317 , H01M50/342 , H01M50/3425 , H01M50/35 , H01M50/383 , H01M50/531 , H01M50/543 , B60K2001/0405 , B60K2001/0438 , B60L58/26 , H01M2220/20
Abstract: A battery pack, a vehicle, and an energy storage device are provided. The battery pack includes a cell array and a support member, where the cell array includes a plurality of cells, the cell has a first dimension, and the first dimension is a maximum spacing between two imaginary parallel planes sandwiching the cell; and at least one of the cells 600 mm≤first dimension≤2500 mm the at least one cell includes a casing and a core located inside the casing, a supporting region is formed on the casing, and the cell is connected to the support member through the supporting region and is supported by the support member. The support member is connected to the supporting region to support the cell.
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公开(公告)号:US20240128535A1
公开(公告)日:2024-04-18
申请号:US18532624
申请日:2023-12-07
Applicant: BYD COMPANY LIMITED
Inventor: Yuanmao SHU , Yanfeng WU , Weixin ZHENG , Zhipei LU , Huajun SUN
IPC: H01M10/613 , H01M10/625 , H01M10/653 , H01M10/6556 , H01M50/30
CPC classification number: H01M10/613 , H01M10/625 , H01M10/653 , H01M10/6556 , H01M50/30 , H01M2220/20
Abstract: A battery assembly, a battery pack and a vehicle are provided. The battery assembly includes: multiple cells; a connecting member, where the cells is electrically connected to each other through the connecting member; and a thermally conductive member, where the cell has a housing, the thermally conductive member is provided between the connecting member and the housing, and the thermally conductive member is thermally conductively connected to the connecting member and the housing.
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公开(公告)号:US20230020386A1
公开(公告)日:2023-01-19
申请号:US17778767
申请日:2020-11-19
Applicant: BYD COMPANY LIMITED
Inventor: Huajun SUN , Yan ZHU , Xinyue WANG
IPC: H01M50/636 , H01M50/289 , H01M50/51
Abstract: This application provides a battery. The battery includes a housing and a plurality of accommodating cavities located in the housing. Two adjacent accommodating cavities are isolated by a partition plate, and an electrode core assembly comprising at least one electrode core is arranged in the accommodating cavity. A plurality of electrode core assemblies are sequentially arranged along a first direction and connected in series. A liquid guiding hole and a gas guiding hole are provided on the partition plate. The liquid guiding hole and the gas guiding hole are used to connect two adjacent accommodating cavities at both sides of the partition plate. The battery further includes a blocking mechanism that enables the liquid guiding hole to be in a settable state including an open state and a closed state.
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