CN111430592A - Battery core cover plate, battery module and vehicle - Google Patents

Battery core cover plate, battery module and vehicle Download PDF

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Publication number
CN111430592A
CN111430592A CN202010366609.6A CN202010366609A CN111430592A CN 111430592 A CN111430592 A CN 111430592A CN 202010366609 A CN202010366609 A CN 202010366609A CN 111430592 A CN111430592 A CN 111430592A
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CN
China
Prior art keywords
layer
cover plate
metal layer
insulating layer
cell cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010366609.6A
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Chinese (zh)
Other versions
CN111430592B (en
Inventor
高顺航
王珏
孙新乐
王稳
陈森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Svolt Energy Technology Co Ltd
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Svolt Energy Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Svolt Energy Technology Co Ltd filed Critical Svolt Energy Technology Co Ltd
Priority to CN202010366609.6A priority Critical patent/CN111430592B/en
Publication of CN111430592A publication Critical patent/CN111430592A/en
Application granted granted Critical
Publication of CN111430592B publication Critical patent/CN111430592B/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/147—Lids or covers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The invention discloses a battery cell cover plate, a battery module and a vehicle, wherein the battery cell cover plate comprises: the metal layer, the first insulating layer, the second insulating layer, the electric connecting piece and the leading-out layer are arranged on two sides of the metal layer respectively; the electric connecting piece penetrates through the first insulating layer, the metal layer and the second insulating layer, and a sealing piece is arranged between the electric connecting piece and the metal layer; the extraction layer is connected with the electric connecting piece so as to be suitable for collecting the voltage of the pole group. Therefore, on one hand, the structure of the battery cell cover plate is simpler, the occupied space is small, and the energy density of the battery module can be improved while the cost of the battery cell cover plate is reduced; on the other hand, can be through measuring the voltage of drawing forth the layer in order to realize the voltage measurement to the utmost point group, need not to carry out the voltage detection of utmost point group through external member, under the prerequisite of further simplifying the structure, can improve battery module's safety in utilization.

Description

Battery core cover plate, battery module and vehicle
Technical Field
The invention relates to the technical field of vehicles, in particular to a battery cell cover plate, a battery module and a vehicle.
Background
In the related art, the cell cover plate is composed of a positive pole riveting block, a negative pole riveting block, positive pole upper plastic, negative pole upper plastic, positive and negative pole columns, positive pole lower plastic, negative pole lower plastic, a top cover plate, a sealing ring and the like. And the battery core cover plate is welded with the top of the battery core shell to realize the sealing of the single battery core. The electric core cover plate and the electrode group are connected internally through the connecting sheet, and the outside is conductive by the positive and negative poles.
However, the existing electric core cover plate is complex in structure, large in number of parts and large in occupied space, needs an external part to detect the voltage of an electric core, is difficult to assemble, and is low in use safety.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a cell cover plate, which has a simple structure, occupies a small space, can improve the energy density of a battery module, can acquire the voltage of a cell by collecting the voltage of an electrical connector, has a simple structure, does not need an external component to perform voltage detection of the cell, and has high safety in use.
The invention further provides a battery module, and the battery module adopts the battery core cover plate.
The invention also provides a vehicle with the battery module.
The cell cover plate according to the embodiment of the first aspect of the invention comprises: the metal layer, the first insulating layer, the second insulating layer, the electric connecting piece and the leading-out layer are arranged on two sides of the metal layer respectively; the electric connecting piece penetrates through the first insulating layer, the metal layer and the second insulating layer, and a sealing piece is arranged between the electric connecting piece and the metal layer; the extraction layer is connected with the electric connecting piece so as to be suitable for collecting the voltage of the pole group.
According to the battery cell cover plate disclosed by the embodiment of the invention, on one hand, the structure of the battery cell cover plate is simpler, the occupied space is small, the cost of the battery cell cover plate is reduced, and meanwhile, the occupied space of the battery cell cover plate can be reduced, so that the energy density of a battery module is improved; on the other hand, can be through measuring the voltage of drawing forth the layer in order to realize the voltage measurement to the utmost point group, need not to carry out the voltage detection of utmost point group through external member, under the prerequisite of further simplifying the structure, can improve battery module's safety in utilization.
According to some embodiments of the invention, the metal layer further comprises: a first metal layer, a second metal layer, and a third insulating layer disposed between the first metal layer and the second metal layer; the seal includes: a first seal disposed between the first metal layer and the electrical connector and a second seal disposed between the second metal layer and the electrical connector.
In some embodiments, the extraction layer is disposed within the third insulating layer and is connected to the electrical connection.
Further, the electrical connector includes: the connecting plate is attached to the outer side face of the first insulating layer, and the connecting column penetrates through the first insulating layer, the first metal layer, the third insulating layer, the leading-out layer, the second metal layer and the second insulating layer.
In some embodiments, the connecting plate is a copper piece, the connecting column is an aluminum piece, and the connecting plate and the connecting column are riveted and fixed.
Furthermore, the free end of the connecting column is provided with a bulge which protrudes outwards in the radial direction and is lapped with the peripheral surface of the second insulating layer.
Further, at least a portion of the first seal is disposed between the first insulating layer and the connecting post and abuts the connecting plate.
In some embodiments, at least a portion of the second seal is disposed between the second insulating layer and the connection post and abuts the boss.
A battery module according to an embodiment of a second aspect of the present invention includes: the device comprises a first shell and a second shell, wherein a first cavity is arranged in the first shell, and a second accommodating cavity is arranged in the second shell; a first pole group and a second pole group, the first pole group being disposed within the first chamber and the second pole group being disposed within the second chamber; the battery cell cover plate is arranged between the first shell and the second shell to separate the first cavity from the second cavity, the electric connecting pieces are respectively connected with the pole lugs of the first pole group and the pole lugs of the second pole group, and the metal layer is connected with the first shell and the second shell.
According to a vehicle of an embodiment of a third aspect of the invention, comprising: the battery module described in the above embodiments.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic cross-sectional view of a cell cover plate according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a cell cover plate according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a cell cover plate according to an embodiment of the present invention;
fig. 4 is a schematic view of a battery module according to an embodiment of the present invention.
Reference numerals:
the number of the battery modules 1000 is increased,
the cell cover plate 100 is provided with a cell cover plate,
a metal layer 110, a first metal layer 111, a second metal layer 112, a first insulating layer 120, a second insulating layer 130, an electrical connector 140, a connection plate 141, a connection post 142, a lead-out layer 150, a third insulating layer 160, a first sealing member 171, a second sealing member 172,
a first housing 200 and a second housing 300.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A cell cover 100, a battery module 1000, and a vehicle according to an embodiment of the present invention are described below with reference to fig. 1 to 4.
As shown in fig. 1 and fig. 2, a cell cover plate 100 according to an embodiment of the first aspect of the present invention includes: a metal layer 110, a first insulating layer 120, a second insulating layer 130, an electrical connector 140, and a lead-out layer 150.
Wherein, the first insulating layer 120 and the second insulating layer 130 are respectively disposed at two sides of the metal layer 110; the electric connecting piece 140 penetrates through the first insulating layer, the metal layer 110 and the second insulating layer 130, and a sealing piece is arranged between the electric connecting piece 140 and the metal layer 110; the extraction layer 150 is connected to the electrical connection 140 to be suitable for collecting the pack voltage.
Specifically, the cell cover plate 100 is disposed between two adjacent pole groups or directly formed as an outer cover plate of the battery module 1000, one end of the electrical connector 140 is electrically connected to the pole group, the other end of the electrical connector 140 is electrically connected to another pole group or formed as a positive or negative pole, the metal layer 110 is spaced apart from the pole group by the first insulating member, the metal layer 110 is spaced apart from the electrical connector 140 by the sealing member, the lead-out layer 150 is connected to the electrical connector 140, and the voltage of the pole group can be measured only by measuring the voltage of the lead-out layer 150.
According to the battery cell cover plate 100 of the embodiment of the invention, on one hand, the structure of the battery cell cover plate 100 is simpler, the occupied space is small, and the occupied space of the battery cell cover plate 100 can be reduced while the cost of the battery cell cover plate 100 is reduced, so that the energy density of the battery module 1000 is improved; on the other hand, the voltage of the lead-out layer 150 can be measured to measure the voltage of the electrode group, and the voltage of the electrode group does not need to be detected by external components, so that the use safety of the battery module 1000 can be improved on the premise of further simplifying the structure.
In the particular embodiments shown in fig. 1, 2, and 3, the metal layer 110 further includes, in accordance with some embodiments of the present invention: a first metal layer 111, a second metal layer 112, and a third insulating layer 160 disposed between the first metal layer 111 and the second metal layer 112; the sealing member includes: a first sealing member 171 and a second sealing member 172, the first sealing member 171 being disposed between the first metal layer 111 and the electrical connector 140, the second sealing member 172 being disposed between the second metal layer 112 and the electrical connector 140.
In this way, the first metal layer 111 is spaced from the first sealing member 171 by the first sealing member 171, the second metal layer 112 is spaced from the second sealing member 172 by the second sealing member 172, and the first metal layer 111 is spaced from the second metal layer 112 by the third insulating layer 160, so as to prevent the metal layer 110 from being electrified, thereby preventing creepage between metal members in the cell cover plate 100, preventing the cell cover plate 100 from being short-circuited, and improving the use safety of the battery module 1000.
As shown in fig. 2, the lead-out layer 150 is disposed within the third insulating layer 160 and connected to the electrical connection member 140. In this way, the connection between the lead-out layer 150 and the electrical connector 140 is simpler and more convenient, and meanwhile, the lead-out layer 150 is embedded in the third insulating layer 160, and the lead-out layer 150 is spaced from the first metal layer 111 and the lead-out layer 150 is spaced from the second metal layer 112 through the third insulating layer 160, so that the use safety of the cell cover plate 100 is further improved.
As shown in fig. 1, the electrical connector 140 includes: the connecting plate 141 is attached to the outer side surface of the first insulating layer 120, and the connecting column 142 penetrates through the first insulating layer 120, the first metal layer 111, the third insulating layer 160, the lead-out layer 150, the second metal layer 112, and the second insulating layer 130.
That is, the connection plate 141 is electrically connected with the pole group, and one end of the connection post 142 is electrically connected with the connection plate 141 and the other end passes through the first insulating layer 120, the first metal layer 111 and the third insulating layer 160, the lead-out layer 150, the second metal layer 112 and the second insulating layer 130 and protrudes out of the outer surface of the second insulating layer 130.
Further, the connecting plate 141 is a copper piece, the connecting column 142 is an aluminum piece, and the connecting plate 141 and the connecting column 142 are riveted and fixed. In this way, the connecting plate 141 and the connecting column 142 are made of metal pieces made of different materials, so that the materials of the connecting plate 141 and the connecting column 142 are respectively consistent with the positive electrode tab material and the negative electrode tab material of the battery cell, and the connection between the electric connector 140 and the tabs is facilitated.
As shown in fig. 2, the free end of the connection post 142 is provided with a protrusion protruding outward in the radial direction and overlapping the outer circumferential surface of the second insulation layer 130, at least a portion of the first sealing member 171 is disposed between the first insulation layer 120 and the connection post 142 and is in contact with the connection plate 141, and at least a portion of the second sealing member 172 is disposed between the second insulation layer 130 and the connection post 142 and is in contact with the protrusion. Therefore, on the premise of improving the sealing effect of the cell cover plate 100, the structural strength of the cell cover plate 100 and the insulating effect between adjacent components in the cell cover plate 100 can be further improved.
As shown in fig. 4, a battery module 1000 according to an embodiment of the second aspect of the present invention includes: the device comprises a first shell 200 and a second shell 300, wherein a first cavity is arranged in the first shell 200, and a second accommodating cavity is arranged in the second shell 300; the first pole group is arranged in the first cavity, and the second pole group is arranged in the second cavity; the battery cell cover plate 100 is disposed between the first casing 200 and the second casing 300 to separate the first chamber from the second chamber, the electrical connectors 140 are respectively connected to the tabs of the first pole group and the tabs of the second pole group, and the metal layer 110 is connected to the first casing 200 and the second casing 300.
According to the battery module 1000 of the embodiment of the invention, on one hand, the structure of the battery core cover plate 100 is simpler, so that the space in the battery module 1000 where the pole group can be arranged is larger, and the energy density of the battery module 1000 can be improved; on the other hand, the voltage of the shell of the battery module 1000 is directly measured, so that the voltage measurement of the pole group can be realized, an external component is not required to be arranged to lead out the voltage of the pole group, the structure of the battery module 1000 is simpler, the cost is lower, and the use safety of the battery module 1000 can be improved.
According to a vehicle of an embodiment of a third aspect of the invention, comprising: the battery module 1000 in the above embodiment.
According to the vehicle of the embodiment of the present invention, the battery module 1000 has the same technical effect as the battery module 1000, and the details are not repeated herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A cell cover plate (100), comprising:
a metal layer (110);
a first insulating layer (120) and a second insulating layer (130), the first insulating layer (120) and the second insulating layer (130) being disposed at both sides of the metal layer (110), respectively;
an electrical connector (140), the electrical connector (140) passing through the first insulation layer, the metal layer (110) and the second insulation layer (130), a seal being provided between the electrical connector (140) and the metal layer (110);
an extraction layer (150), the extraction layer (150) being connected to the electrical connection (140) for collecting the pack voltage.
2. The cell cover plate (100) of claim 1, wherein the metal layer (110) further comprises: a first metal layer (111), a second metal layer (112), and a third insulating layer (160) disposed between the first metal layer (111) and the second metal layer (112);
the seal includes: a first seal (171) and a second seal (172), the first seal (171) being disposed between the first metal layer (111) and the electrical connector (140), the second seal (172) being disposed between the second metal layer (112) and the electrical connector (140).
3. The cell cover plate (100) according to claim 2, wherein the extraction layer (150) is arranged within the third insulating layer (160) and is connected to the electrical connection (140).
4. The cell cover plate (100) of claim 3, wherein the electrical connector (140) comprises: the connecting plate (141) is attached to the outer side face of the first insulating layer (120), and the connecting column (142) penetrates through the first insulating layer (120), the first metal layer (111) and the third insulating layer (160), the lead-out layer (150), the second metal layer (112) and the second insulating layer (130).
5. The cell cover plate (100) according to claim 4, wherein the connecting plate (141) is a copper piece, the connecting column (142) is an aluminum piece, and the connecting plate (141) and the connecting column (142) are riveted.
6. The cell cover plate (100) according to claim 5, characterized in that the free end of the connecting column (142) is provided with a projection projecting radially outwards and overlapping the outer circumferential surface of the second insulating layer (130).
7. The cell cover plate (100) according to claim 6, characterized in that at least part of the first seal (171) is arranged between the first insulating layer (120) and the connection column (142) and rests against the connection plate (141).
8. The cell cover plate (100) of claim 6, wherein at least a portion of the second seal (172) is disposed between the second insulating layer (130) and the connection post (142) and abuts the protrusion.
9. A battery module (1000), comprising:
the device comprises a first shell (200) and a second shell (300), wherein a first cavity is arranged in the first shell (200), and a second accommodating cavity is arranged in the second shell (300);
a first pole group and a second pole group, the first pole group being disposed within the first chamber and the second pole group being disposed within the second chamber;
the cell cover plate (100) of any of claims 1-8, the cell cover plate (100) being disposed between the first casing (200) and the second casing (300) to separate the first chamber and the second chamber, the electrical connections (140) being connected to tabs of the first pole set and tabs of the second pole set, respectively, the metal layer (110) being connected to the first casing (200) and the second casing (300).
10. A vehicle, characterized by comprising: the battery module (1000) according to claim 9.
CN202010366609.6A 2020-04-30 2020-04-30 Battery core cover plate, battery module and vehicle Active CN111430592B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010366609.6A CN111430592B (en) 2020-04-30 2020-04-30 Battery core cover plate, battery module and vehicle

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Application Number Priority Date Filing Date Title
CN202010366609.6A CN111430592B (en) 2020-04-30 2020-04-30 Battery core cover plate, battery module and vehicle

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CN111430592B CN111430592B (en) 2022-04-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024031347A1 (en) * 2022-08-09 2024-02-15 宁德时代新能源科技股份有限公司 End cover assembly, battery assembly, battery, and electrical device
WO2024045065A1 (en) * 2022-08-31 2024-03-07 宁德时代新能源科技股份有限公司 End cover assembly, battery assembly, battery, and electric device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140017555A1 (en) * 2012-07-10 2014-01-16 Samsung Sdi Co., Ltd. Secondary battery
CN205900633U (en) * 2016-07-21 2017-01-18 北京新能源汽车股份有限公司 Power battery and car that has it
CN108511660A (en) * 2017-02-28 2018-09-07 宁德时代新能源科技股份有限公司 Battery module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140017555A1 (en) * 2012-07-10 2014-01-16 Samsung Sdi Co., Ltd. Secondary battery
CN205900633U (en) * 2016-07-21 2017-01-18 北京新能源汽车股份有限公司 Power battery and car that has it
CN108511660A (en) * 2017-02-28 2018-09-07 宁德时代新能源科技股份有限公司 Battery module

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024031347A1 (en) * 2022-08-09 2024-02-15 宁德时代新能源科技股份有限公司 End cover assembly, battery assembly, battery, and electrical device
WO2024045065A1 (en) * 2022-08-31 2024-03-07 宁德时代新能源科技股份有限公司 End cover assembly, battery assembly, battery, and electric device

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