WO2023138586A1 - 电池壳、电池及电子装置 - Google Patents

电池壳、电池及电子装置 Download PDF

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Publication number
WO2023138586A1
WO2023138586A1 PCT/CN2023/072681 CN2023072681W WO2023138586A1 WO 2023138586 A1 WO2023138586 A1 WO 2023138586A1 CN 2023072681 W CN2023072681 W CN 2023072681W WO 2023138586 A1 WO2023138586 A1 WO 2023138586A1
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WO
WIPO (PCT)
Prior art keywords
battery
case
flange
opening
port
Prior art date
Application number
PCT/CN2023/072681
Other languages
English (en)
French (fr)
Inventor
柳宁
赵唯
严坤
何平
Original Assignee
宁德新能源科技有限公司
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Filing date
Publication date
Application filed by 宁德新能源科技有限公司 filed Critical 宁德新能源科技有限公司
Publication of WO2023138586A1 publication Critical patent/WO2023138586A1/zh

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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
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • 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
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
    • 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
    • H01M50/183—Sealing members
    • 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

Definitions

  • the embodiments of the present application relate to the technical field of batteries, in particular to a battery case, a battery and an electronic device.
  • the technical problem mainly solved by the embodiments of the present application is to provide a battery case, a battery and an electronic device, which can improve the sealing effect of the battery.
  • the battery case includes a first case, the first case defines a first recess for accommodating the electrode assembly, the first case has a first port communicating with the first recess, the first case includes a first plate for defining the first port, the first plate is provided with a first opening through the first recess, the first opening is configured for the pole assembly to pass through, the first plate includes a first side at the position of the first port, and the closest distance L1 between the first opening and the first side satisfies 0.4mm ⁇ L1 .
  • the first opening of the first plate is set at a position away from the first side for welding to greater than or equal to 0.4 millimeters, so that when the first side of the first casing is welded, the pole assembly pierced at the first opening will not receive excessive welding heat, thereby ensuring the sealing effect of the pole assembly and enhancing the overall sealing of the battery.
  • the first side is connected to the first flange, and the first flange extends in a direction away from the first recess.
  • the first flange is used for further cooperation with other shells outside the first shell. Welding further reduces the heat transferred to the first opening when the first casing is welded, and improves the overall sealing effect of the battery.
  • the first board includes a first wall away from the first recess, and along a direction perpendicular to the first wall, the dimension H1 of the first flange satisfies 0.2mm ⁇ H1 ⁇ 5mm.
  • H1 is less than 0.2 mm
  • the effect of the first flange on blocking heat transfer to the first opening is not ideal.
  • H1 is larger than 5mm
  • the first flange occupies too much space of the battery, which reduces the energy density of the battery.
  • 0.2mm ⁇ H1 ⁇ 5mm the first flange can not only prevent heat from being transferred to the first opening position, but also prevent it from occupying too much space of the battery.
  • 0.35mm ⁇ L1 ⁇ 1.5mm 0.35mm ⁇ L1 ⁇ 1.5mm.
  • the thickness H2 of the first flange satisfies 0.05mm ⁇ H2 ⁇ 0.3mm.
  • H2 is less than 0.05 mm
  • the effect of the first flange on reducing heat transfer to the second opening is not ideal.
  • H2 is greater than 0.3 mm
  • the space occupied by the first flange is too large, which increases the volume and quality of the battery. Therefore, when 0.05mm ⁇ H2 ⁇ 0.3mm, the first flange can not only reduce the heat transferred to the first opening position during welding of the first shell, but also prevent the occupied space of the first flange from being too large.
  • the first housing further includes several plates arranged along the circumference of the first port. Along the circumferential direction of the first port, the size of the first board is smaller than or equal to any one of the several boards.
  • the pole assembly protruding from the first plate body can occupy the least effective space, so that the overall energy density of the battery is higher.
  • the battery case further includes a second case, the second case is used for connecting with the first case, and the second case is configured to seal the first port when connected with the first case, so as to define together with the first case an accommodating cavity for accommodating the electrode assembly.
  • the battery shell is a complete shell required by the battery, which facilitates the processing of the battery.
  • the second housing is plate-shaped. In this solution, when the second case is plate-shaped, it is easier to weld the second case and the side of the first port of the first case, which reduces the processing difficulty of the battery.
  • the second aspect of the present application also provides a battery, including any one of the above battery cases.
  • the battery also includes an electrode assembly and a pole assembly.
  • the electrode assembly is at least partially disposed in the first recess, and the electrode assembly includes a first tab.
  • the pole component is passed through the first opening, the pole component is electrically connected to the first tab, and the pole component is insulated from the first casing.
  • the shortest distance L2 between the pole assembly and the first side satisfies 0.1mm ⁇ L2.
  • the first side is connected to the first flange, and the first flange extends in a direction away from the first recess. 0.05mm ⁇ L2.
  • the size of the first plate body along the direction perpendicular to the first side can be reduced, so that the minimum size of the battery can be smaller.
  • 0.05mm ⁇ L2 ⁇ 1mm In a further embodiment, 0.05mm ⁇ L2 ⁇ 1mm.
  • the size of the first plate body along the direction perpendicular to the first side can be further reduced, so that the minimum size of the battery can be smaller.
  • the end of the pole assembly away from the first recess does not exceed the corresponding end of the first flange.
  • the first flange does not occupy too much effective space of the battery, so that the energy density of the battery is higher.
  • the battery case further includes a second case, the second case is plate-shaped, the second case includes a second wall, the first case is welded to the second wall, and the second wall seals the first port, so that the second case and the first case jointly define an accommodating cavity for accommodating the electrode assembly.
  • the first shell includes a second plate body, the second plate body is used to define the first port, the second plate body includes a second side edge at the position of the first port, the second side edge is welded to the second wall surface, the second plate body includes a third wall surface away from the first recess, and the dimension H3 extending from the second wall surface of the second shell surface in a direction perpendicular to the third wall surface satisfies H3 ⁇ 0.2mm.
  • the second shell protrudes a part of the second plate body, and the protruding distance is less than 0.2mm, so that the second plate body can be more easily welded with the second wall surface of the second shell body.
  • the second aspect of the present application also provides an electronic device, including any battery described above.
  • the application provides a battery case, the first plate of the battery case is provided with a The first opening through which the component penetrates, and the shortest distance L1 between the first opening and the first side satisfies 0.4mm ⁇ L1.
  • the first opening of the first plate is set at a position away from the first side for welding to a position greater than or equal to 0.4 mm, so that when the first side of the first case is welded, the pole assembly passing through the first opening will not receive excessive welding heat, thereby ensuring the sealing effect of the position of the pole assembly and enhancing the airtightness of the battery as a whole.
  • Fig. 1 is a schematic cross-sectional view of a first housing provided in the first embodiment of the present application
  • Fig. 2 is a schematic side view of the first housing provided by the first embodiment of the present application.
  • Fig. 3 is a schematic perspective view of the first housing provided by the second embodiment of the present application.
  • Fig. 4 is a schematic cross-sectional view of the first housing provided by the second embodiment of the present application.
  • Fig. 5 is a schematic perspective view of the battery case provided by the second embodiment of the present application.
  • Fig. 6 is a schematic cross-sectional view of the battery provided by the first embodiment of the present application.
  • Fig. 7 is a schematic cross-sectional view of the battery provided by the second embodiment of the present application.
  • Fig. 8 is a schematic side view of the battery provided by the second embodiment of the present application.
  • the battery is formed by connecting two shells, one of the shells is provided with a first opening, and the pole assembly of the battery passes through the first opening.
  • the pole assembly of the battery is in sealing connection with the first opening position.
  • the present applicant found that in the above-mentioned type of battery, after the battery is processed as a whole, the sealing of the first opening position has a relatively large proportion that fails to meet the standard. However, even if the connection relationship of the pole assembly at the first opening is set closer, the sealing of the first opening is still poor after the battery is processed, and the yield rate is not significantly improved.
  • the applicant found that during the connection (specifically, welding) of the housing, the heat during connection will be transferred to the position of the pole assembly. On the one hand, the connection heat will cause slight deformation of the first opening, and on the other hand, the components on the pole assembly (such as the sealing ring) will also be deformed by heat. That is to say, the inventors found that the heat generated when the shells are connected has an important influence on the sealing effect of the first opening.
  • the present embodiment provides a battery case 10 , which can improve the sealing effect of the battery 1 processed by using the battery case 10 .
  • the battery case 10 includes a first case 100 defining a first recess 120 for receiving the electrode assembly 400 , and the first case 100 has a first port 130 communicating with the first recess 120 .
  • the first recess 120 of the first casing 100 can be used to accommodate the whole electrode assembly 400 , or can accommodate a part of the electrode assembly 400 .
  • the battery case 10 in this embodiment may only include the first casing 100.
  • the casing of the battery 1 needs to include an additional casing to be connected to the battery casing 10 in this embodiment (specifically, it may be welding, and welding will be used as an example below) to seal the first port 130.
  • the additional shell can be in the shape of a plate, at this time, the first recess 120 completely accommodates the electrode assembly 400 .
  • the additional casing can also define a second recess, and the second recess and the first recess 120 jointly define the accommodating cavity 500 for accommodating the electrode assembly 400 , and the first recess 120 is used to accommodate a part of the electrode assembly 400 .
  • the battery case 10 in this embodiment can also include an additional casing (specifically, it can The second housing 200 in the subsequent embodiment), the additional housing is used for welding with the first housing 100 to seal the first port 130 .
  • the battery case 10 in this embodiment includes an additional case that seals the first port 130 of the first case 100
  • the battery case 10 in this embodiment can be all the cases of the battery 1 .
  • the first housing 100 includes a first plate 110 for defining a first port 130 , the first plate 110 is provided with a first opening 111 passing through the first recess 120 , the first opening 111 is configured for the pole assembly 300 to pass through, and the pole assembly 300 seals the first opening 111 after passing through the first opening 111 .
  • the end of the pole assembly 300 located in the first concave portion 120 is used for electrical connection with the electrode assembly 400 in the first concave portion 120 .
  • the end of the pole assembly 300 located outside the first casing 100 is used for electrical connection with an external circuit.
  • the specific shape of the first opening 111 may depend on the shape of the pole assembly 300 , and in this embodiment, for example, the first opening 111 is circular.
  • the first board 110 includes a first side 113 at the position of the first port 130, and the shortest distance L1 between the first opening 111 and the first side 113 satisfies 0.4mm ⁇ L1.
  • L1 may be 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm or 0.65mm, etc.
  • the applicant has demonstrated that when the closest distance between the first opening 111 and the first side 113 is greater than 0.4 mm, the welding process of the first side 113 will have less influence on the sealing effect at the position of the first opening 111 .
  • the first opening 111 is opened on the first plate 110 defining the first port 130 , and the closest distance between the first opening 111 and the first side 113 of the first plate 110 needs to be greater than 0.4mm.
  • the pole assembly 300 passes through the first opening 111 and seals the first opening 111, the pole assembly 300 can be separated from the first side 113 by a longer distance, so that when other shells outside the first housing 100 are welded to the first side 113, the heat generated during the welding process is transferred to the first opening 111, and the residual heat is relatively low, which has less impact on the sealing effect of the first opening 111, thus improving the overall sealing effect of the battery 1.
  • the first flange 140 is used for welding with other shells outside the first shell 100, further reducing the thickness of the first shell 100.
  • the heat transferred to the position of the first opening 111 during welding improves the overall sealing effect of the battery 1 .
  • the first flange 140 is connected to the wall surface of the first plate body 110 away from the first recess 120 , and the wall surface of the first flange 140 away from the first opening 111 is connected to the wall surface where the first side 113 is located, and the two can be coplanar.
  • the first flange 140 can be integrally formed with the first plate body 110 .
  • the size of the first flange 140 has a corresponding relationship with the heat surplus transferred to the position of the first opening 111 during welding of the first shell 100.
  • H1 may be 0.2mm, 0.5mm, 1mm, 2mm, 3mm, 4mm or 5mm, etc.
  • H1 is less than 0.2 mm
  • the effect of the first flange 140 on blocking heat transfer to the first opening 111 is not ideal.
  • H1 is greater than 5 mm
  • the first flange 140 occupies too much space of the battery 1 , reducing the energy density of the battery 1 .
  • the first flange 140 can not only prevent heat from being transferred to the position of the first opening 111 , but also prevent it from occupying too much space of the battery 1 .
  • L1 can effectively prevent excessive transfer of welding heat to the position of the first opening 111 .
  • the first flange 140 is provided on the first shell 100, the heat transferred to the position of the first opening 111 during the welding process of the first shell 100 is reduced, so the value of L1 can be further reduced, which can reduce the size of the first plate 110 along the direction perpendicular to the first side 113, so that the minimum size of the battery 1 can be reduced.
  • L1 can be 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm or 0.65mm, etc.
  • L1 can be 0.35mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1mm, 1.2mm, 1.4mm or 1.5mm.
  • 0.35mm ⁇ L1 ⁇ 1.5mm it can not only ensure that the heat transferred to the position of the first opening 111 during welding of the first housing 100 will not be too high, but also prevent the size of the first plate 110 from being too large along the direction perpendicular to the first side 113 .
  • the thickness of the first flange 140 is related to the Heat has an effect.
  • the thickness H2 of the first flange 140 satisfies 0.05mm ⁇ H2 ⁇ 0.3mm.
  • H2 may be 0.05mm, 0.1mm, 0.15mm, 0.20mm, 0.25mm or 0.30mm, etc.
  • H2 is less than 0.05 mm
  • the effect of the first flange 140 on reducing heat transfer to the second opening is not ideal.
  • H2 is greater than 0.3 mm, the space occupied by the first flange 140 is too large, which increases the volume and mass of the battery 1 . Therefore, when 0.05mm ⁇ H2 ⁇ 0.3mm, the first flange 140 can reduce the heat transferred to the position of the first opening 111 when the first shell 100 is welded, and the occupied space of the first flange 140 will not be too large.
  • the first housing 100 further includes several plates 160 arranged along the circumference of the first port 130 .
  • the size of the first plate 110 is smaller than or equal to any one of the plurality of plates 160 .
  • the first housing 100 includes four plates, wherein, along the circumferential direction of the first port 130 , the size of the first plate 110 is the smallest, that is, the size of the first plate 110 along the length direction of the first side 113 is the smallest.
  • the pole assembly 300 protruding from the first plate body 110 can occupy the least effective space, so that the overall energy density of the battery 1 is higher.
  • the first casing 100 in order to further increase the energy density of the battery 1 , along the circumferential direction of the first port 130 , the first casing 100 only has the first flange 140 on the first side 113 , and no flanges on the other sides.
  • the battery case 10 further includes a second case 200 , the second case 200 is used to connect with the first case 100 , specifically, it may be welded, and the second case 200 is configured to seal the first port 130 when connected with the first case 100 , so as to define together with the first case 100 an accommodating cavity 500 for accommodating the electrode assembly 400 .
  • the battery case 10 is a complete shell required by the battery 1 , which facilitates the processing of the battery 1 .
  • the shape of the second casing 200 can be determined according to specific requirements.
  • the second casing 200 can be in the shape of a plate, and at this time, the first recess 120 completely accommodates the electrode assembly 400 .
  • the second casing 200 may further define a second concave portion, and the second concave portion and the first concave portion 120 jointly define the accommodating cavity 500 for accommodating the electrode assembly 400 , at this time, the first concave portion 120 is used to accommodate a part of the electrode assembly 400 .
  • the second case 200 When the second case 200 is in the shape of a plate, it is easier to weld the second case 200 and the side of the first port 130 of the first case 100 , which reduces the processing difficulty of the battery 1 .
  • the second aspect of the present application also provides a battery 1 , which includes the battery case 10 described above.
  • the battery 1 further includes an electrode assembly 400 and a pole assembly 300 .
  • the electrode assembly 400 is at least partially disposed in the first recess 120 , and the electrode assembly 400 includes a first tab 410 .
  • the pole assembly 300 passes through the first opening 111 , the pole assembly 300 is electrically connected to the first tab 410 , and the pole assembly 300 is insulated from the first housing 100 .
  • the shortest distance L2 between the pole assembly 300 and the first side 113 satisfies 0.1mm ⁇ L2.
  • L2 may be 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm or 0.35mm, etc.
  • the applicant has demonstrated that when the shortest distance between the pole assembly 300 and the first side 113 is greater than 0.1 mm, the welding process of the first side 113 has less influence on the sealing effect of the first opening 111 .
  • the first shell 100 and the second shell 200 are welded, the heat transferred to the pole assembly 300 will not cause deformation of the pole assembly 300 due to high temperature.
  • the first side 113 of the first shell 100 is connected to the first flange 140, and the first flange 140 extends away from the first recess 120, and 0.05mm ⁇ L2.
  • L2 may be 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm or 0.5mm, etc.
  • the shortest distance between the pole assembly 300 and the first side 113 may be closer when the first housing 100 is provided with the first flange 140 than when the first housing 100 is not provided with the first flange 140 . In this way, the size of the first plate body 110 along the direction perpendicular to the first side 113 can be reduced, so that the minimum size of the battery 1 can be smaller.
  • L2 may be 0.05mm, 0.1mm, 0.3mm, 0.5mm, 0.7mm, 0.9mm, or 1mm. In this solution, L2 ⁇ 1mm, so that the distance between the pole assembly 300 and the first side 113 in the direction perpendicular to the first side 113 will not be too large, so that the overall occupied space of the battery 1 will not be too large.
  • the first casing 100 of the battery 1 has the first flange 140, in order to prevent the first flange 140 from occupying too much space, in one embodiment, along the extending direction of the first flange 140, the The end of the post assembly 300 facing away from the first recess 120 does not protrude beyond the corresponding end of the first flange 140 . In this way, the first flange 140 does not occupy too much effective space of the battery 1 , so that the energy density of the battery 1 is higher.
  • the dimension H1 of the first flange 140 along the direction perpendicular to the first wall surface 112 can be enlarged, for example, H1 can be between 3 mm and 7 mm.
  • the first flange 140 and the welded parts of the second shell 200 and the first flange 140 can be polished, so that the residual dimension of the first flange 140 along the direction perpendicular to the first wall surface 112 is smaller than that of the pole assembly 300 along the direction perpendicular to the first wall surface 112 The dimension of the direction.
  • the battery case 10 further includes a second case 200, the second case 200 is plate-shaped, the second case 200 includes a second wall 210, the first case 100 is welded to the second wall 210, and the second wall 210 seals the first port 130, so that the second case 200 and the first case 100 jointly define a housing cavity 500 for accommodating the electrode assembly 400.
  • the first housing 100 includes a second plate 150, the second plate 150 is used to define the first port 130, the second plate 150 includes a second side at the position of the first port 130, the second side is welded to the second wall 210, the second plate 150 includes a third wall 151 away from the first recess 120, along a direction perpendicular to the third wall 151, the dimension H3 of the second housing 200 extending out of the second wall 210 satisfies H3 ⁇ 0.2mm.
  • H3 may be 0.2mm, 0.19mm, 0.18mm, 0.17mm, 0.16mm, 0.15mm or 0.14mm, etc.
  • the second shell 200 protrudes a part of the second plate body 150 , and the protruding distance is less than 0.2 mm, so that the second plate body 150 can be more easily welded with the second wall surface 210 of the second shell 200 .
  • the part of the second plate 150 extending beyond the third wall 151 can be polished, and the size of the grinding depends on specific requirements, which is not limited in this application.
  • the second aspect of the present application also provides an electronic device, which includes the battery 1 in any one of the above-mentioned embodiments.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

本申请实施例公开了一种电池壳、电池及电子装置，电池壳包括第一壳体，第一壳体限定出用于容纳电极组件的第一凹部，第一壳体具有与第一凹部连通的第一端口，第一壳体包括用于限定第一端口的第一板体，第一板体设有与第一凹部贯通的第一开口，第一开口配置为用于供极柱组件穿设，第一板体包括位于第一端口位置的第一侧边，第一开口距第一侧边的最近距离L1满足0.4㎜≤L1。本申请中，将第一板体的第一开口设置为远离用于焊接的第一侧边的位置至大于等于0.4毫米，使得第一壳体的第一侧边位置焊接时，穿设于第一开口位置的极柱组件不会接收过多的焊接热量，从而保证了极柱组件位置的密封效果，增强了电池整体的密封性。

Description

电池壳、电池及电子装置
相关申请的交叉参考
本本申请要求于2022年01月21日提交中国专利局，申请号为202210074289.6，名称为“电池壳、电池及电子装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及电池的技术领域，特别是涉及一种电池壳、电池及电子装置。
背景技术
现有的电池在装配完成后，电池壳体位于极柱组件位置的密封性较差。
发明内容
本申请实施例主要解决的技术问题是提供一种电池壳、电池及电子装置，能够提升电池的密封效果。
为解决上述技术问题，本申请采用的一个技术方案是：提供一种电池壳，电池壳包括第一壳体，第一壳体限定出用于容纳电极组件的第一凹部，第一壳体具有与第一凹部连通的第一端口，第一壳体包括用于限定第一端口的第一板体，第一板体设有与第一凹部贯通的第一开口，第一开口配置为用于供极柱组件穿设，第一板体包括位于第一端口位置的第一侧边，第一开口距第一侧边的最近距离L1满足0.4㎜≤L1。本方案中，将第一板体的第一开口设置为远离用于焊接的第一侧边的位置至大于等于0.4毫米，使得第一壳体的第一侧边位置焊接时，穿设于第一开口位置的极柱组件不会接收过多的焊接热量，从而保证了极柱组件位置的密封效果，增强了电池整体的密封性。
进一步的实施例中，第一侧边连接第一凸缘，第一凸缘朝背离第一凹部的方向延伸。本方案中，第一凸缘用于与第一壳体外的其他壳体进 行焊接，进一步降低了第一壳体焊接时传递至第一开口位置的热量，提升了电池整体的密封效果。
进一步的实施例中，第一板体包括背离第一凹部的第一壁面，沿垂直于第一壁面的方向，第一凸缘的尺寸H1满足0.2㎜≤H1≤5㎜。本方案中，本申请人发现，当H1小于0.2㎜时，第一凸缘阻隔热量传递至第一开口的效果不够理想。当H1大于5㎜时，第一凸缘占据了电池过多的空间，降低了电池的能量密度。当0.2㎜≤H1≤5㎜时，第一凸缘既能够防止热量传递至第一开口位置，又能够避免其占用电池过多的空间。
进一步的实施例中，0.35㎜≤L1。本方案中，能够减小第一板体沿垂直于第一侧边方向的尺寸，从而使电池的最小尺寸能够变小。
进一步的实施例中，0.35㎜≤L1≤1.5㎜。本方案中，当0.35㎜≤L1≤1.5㎜时，既能够保证第一壳体焊接时传递至第一开口位置的热量不会过高，又能够防止第一板体沿垂直于第一侧边的方向的尺寸过大。
进一步的实施例中，沿第一开口至第一凸缘的方向，第一凸缘的厚度H2满足0.05㎜≤H2≤0.3㎜。本方案中，本申请人发现，当H2小于0.05㎜时，第一凸缘对减少热量传递至第开口位置的效果不理想。当H2大于0.3㎜时，第一凸缘的占用空间过大，增大了电池的体积以及质量。故当0.05㎜≤H2≤0.3㎜时，能够使第一凸缘即能够减小第一壳体焊接时传递至第一开口位置的热量，又能够使第一凸缘的占用空间不会过大。
进一步的实施例中，第一壳体还包括沿第一端口的周向布置的若干板体。沿第一端口的周向，第一板体的尺寸小于或等于若干板体中的任意一块板体。本方案中，伸出第一板体的极柱组件能够占用最少的有效空间，使得电池整体的能量密度更高。
进一步的实施例中，电池壳还包括第二壳体，第二壳体用于与第一壳体连接，且第二壳体配置为与第一壳体连接时密封第一端口、从而与第一壳体共同限定出容纳电极组件的容置腔。本方案中，电池壳为电池需要的完整的外壳，便于电池的加工。
进一步的实施例中，第二壳体呈板状。本方案中，当第二壳体呈板状时，第二壳体与第一壳体的第一端口位置的侧边更容易焊接，降低了电池的加工难度。
本申请的第二方面还提供了一种电池，包括上述任一项的电池壳。电池还包括电极组件以及极柱组件。电极组件至少部分设于第一凹部，电极组件包括第一极耳。极柱组件穿设于第一开口，极柱组件与第一极耳电连接，且极柱组件与第一壳体绝缘。其中，极柱组件距第一侧边的最近距离L2满足0.1㎜≤L2。本方案中，第一壳体与第二壳体焊接时，传递至极柱组件上的热量不会导致极柱组件因高温而变形。
进一步的实施例中，第一侧边连接第一凸缘，第一凸缘朝背离第一凹部的方向延伸。0.05㎜≤L2。本方案中，能够减小第一板体沿垂直于第一侧边方向的尺寸，使得电池的最小尺寸可以更小。
进一步的实施例中，0.05㎜≤L2≤1㎜。本方案中，能够进一步减小第一板体沿垂直于第一侧边方向的尺寸，使得电池的最小尺寸可以更小。
进一步的实施例中，沿第一凸缘的延伸方向，极柱组件背离第一凹部的端部不超出第一凸缘相对应的端部。本方案中，第一凸缘不会占据电池过多的有效空间，使得电池的能量密度更高。
进一步的实施例中，电池壳还包括第二壳体，第二壳体呈板状，第二壳体包括第二壁面，第一壳体与第二壁面焊接，且第二壁面密封第一端口，以使得第二壳体与第一壳体共同限定出容纳电极组件的容置腔。第一壳体包括第二板体，第二板体用于限定第一端口，第二板体包括位于第一端口位置的第二侧边，第二侧边焊接于第二壁面，第二板体包括背离第一凹部的第三壁面，沿垂直于第三壁面的方向，第二壳体延伸出第二壁面的尺寸H3满足H3≤0.2㎜。本方案中，第二壳体伸出第二板体一部分，且伸出的距离小于0.2㎜，使得第二板体能够更便于与第二壳体的第二壁面进行焊接。
本申请的第二方面还提供了一种电子装置，包括上述任一项的电池。
本申请提供了一种电池壳，该电池壳的第一板体上设有用于极柱组 件穿设的第一开口，且第一开口距第一侧边的最近距离L1满足0.4㎜≤L1。本申请人发现，现有的电池装配完成后极柱组件位置密封效果差是由于第一壳体焊接时热量传递至极柱组件位置导致极柱组件位置的密封效果变差，因此，将第一板体的第一开口设置为远离用于焊接的第一侧边的位置至大于等于0.4毫米，使得第一壳体的第一侧边位置焊接时，穿设于第一开口位置的极柱组件不会接收过多的焊接热量，从而保证了极柱组件位置的密封效果，增强了电池整体的密封性。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1是本申请第一种实施例提供的第一壳体的剖视示意图；
图2是本申请第一种实施例提供的第一壳体的侧视示意图；
图3是本申请第二种实施例提供的第一壳体的立体示意图；
图4是本申请第二种实施例提供的第一壳体的剖视示意图；
图5是本申请第二种实施例提供的电池壳的立体示意图；
图6是本申请第一种实施例提供的电池的剖视示意图；
图7是本申请第二种实施例提供的电池的剖视示意图；
图8是本申请第二种实施例提供的电池的侧视示意图。
具体实施方式
为了便于理解本申请，下面结合附图和具体实施例，对本申请进行更详细的说明。需要说明的是，当元件被表述“固定于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本说明书中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是用于限制本申请。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
现有的一种类型的电池，电池由两个壳体连接形成，其中一个壳体上设有第一开口，电池的极柱组件穿设于第一开口。电池的极柱组件与第一开口位置密封连接。
本申请人发现，上述类型的电池中，当电池整体加工完成后，第一开口位置的密封不达标的比例较大。然而即使将极柱组件在第一开口处的连接关系设置得更紧密，电池加工完成后第一开口处的密封性仍较差，良品率提升不够明显。经过论证，本申请人发现壳体在连接(具体可以为焊接)过程中，连接时的热量会传递至极柱组件位置，一方面，连接热量会导致第一开口产生轻微形变，另一方面，极柱组件上的部件(例如密封圈)亦会受热变形。即本发明人发现，壳体连接时产生的热量对第一开口位置的密封效果有重要影响。
鉴于此，参见图1-8，本实施例提供了一种电池壳10，该电池壳10能够使利用该电池壳10加工出的电池1的密封效果更佳。具体地，电池壳10包括第一壳体100，第一壳体100限定出用于容纳电极组件400的第一凹部120，第一壳体100具有与第一凹部120连通的第一端口130。第一壳体100的第一凹部120可以用于容纳电极组件400整体，也可以容纳电极组件400的其中一部分。本实施例中的电池壳10可以仅包括第一壳体100，此时，电池1的壳体除了包括本实施例提供的电池壳10外，还需要包括额外的壳体来与本实施例中的电池壳10进行连接(具体可以为焊接，以下以焊接进行举例说明)，以密封第一端口130。而额外的壳体可以呈板状，此时第一凹部120完全容纳电极组件400。额外的壳体还可以限定出第二凹部，第二凹部与第一凹部120共同限定出容纳电极组件400的容置腔500，此时第一凹部120用于容纳电极组件400的一部分。本实施例中的电池壳10还可以包括额外的壳体(具体可以 为后续实施例中的第二壳体200)，额外的壳体用于与第一壳体100焊接，以密封第一端口130。当本实施例中的电池壳10包括额外的密封第一壳体100的第一端口130的壳体时，本实施例中的电池壳10可以为电池1的所有壳体。
第一壳体100包括用于限定第一端口130的第一板体110，第一板体110设有与第一凹部120贯通的第一开口111，第一开口111配置为用于供极柱组件300穿设，极柱组件300穿设于第一开口111后密封第一开口111。极柱组件300位于第一凹部120内的端部用于与第一凹部120内的电极组件400电连接。极柱组件300位于第一壳体100外的端部用于与外部电路电连接。第一开口111的具体形状可以视极柱组件300的形状而定，本实施例中，示例性地，第一开口111呈圆形。
参见图1-2，本实施例中，第一板体110包括位于第一端口130位置的第一侧边113，第一开口111距第一侧边113的最近距离L1满足0.4㎜≤L1。示例性地，L1可以为0.4㎜、0.45㎜、0.5㎜、0.55㎜、0.6㎜或0.65㎜等。换句话说，本申请人通过论证，当第一开口111距第一侧边113的最近距离大于0.4㎜时，第一侧边113焊接过程对于第一开口111位置的密封效果的影响变小。
本实施例中的第一壳体100，第一开口111开设于用于限定第一端口130的第一板体110上，且第一开口111与第一板体110的第一侧边113的最近距离需要大于0.4㎜。这样，当极柱组件300穿设于第一开口111位置且密封第一开口111后，极柱组件300能够与第一侧边113相隔较长的距离，使得第一壳体100外的其他壳体焊接于第一侧边113时，焊接过程中产生的热量传递至第一开口111位置后残余的热量较低，对第一开口111位置的密封效果影响变小，故提升了电池1整体的密封效果。
为了进一步减小第一壳体100焊接对第一开口111位置的密封效果的影响，参见图3-4，一种实施例中，第一侧边113连接第一凸缘140，第一凸缘140朝背离第一凹部120的方向延伸。本方案中，第一凸缘140用于与第一壳体100外的其他壳体进行焊接，进一步降低了第一壳体100 焊接时传递至第一开口111位置的热量，提升了电池1整体的密封效果。需要注意的是，本实施例中，定义第一凸缘140连接于第一板体110背离第一凹部120的壁面，且第一凸缘140背离第一开口111的壁面与第一侧边113所在的壁面连接，且两者可以共面。第一凸缘140可以与第一板体110一体式成型。
本申请人发现，第一凸缘140的尺寸大小与第一壳体100焊接时传递至第一开口111位置的热余量有对应关系，本实施例中，参见图3-4，第一板体110包括背离第一凹部120的第一壁面112，沿垂直于第一壁面112的方向，第一凸缘140的尺寸H1满足0.2㎜≤H1≤5㎜。示例性地，H1可以为0.2㎜、0.5㎜、1㎜、2㎜、3㎜、4㎜或5㎜等。本申请人发现，当H1小于0.2㎜时，第一凸缘140阻隔热量传递至第一开口111的效果不够理想。当H1大于5㎜时，第一凸缘140占据了电池1过多的空间，降低了电池1的能量密度。当0.2㎜≤H1≤5㎜时，第一凸缘140既能够防止热量传递至第一开口111位置，又能够避免其占用电池1过多的空间。
本申请人发现，当第一壳体100没有第一凸缘140时，0.4㎜≤L1便能够有效防止焊接热量过多的传递至第一开口111位置。而当第一壳体100设置第一凸缘140后，第一壳体100焊接过程中传递至第一开口111位置的热量变少，故可以进一步减小L1的取值，这样能够减小第一板体110沿垂直于第一侧边113方向的尺寸，从而使电池1的最小尺寸能够变小。本实施例中，参见图2-4，当第一壳体100具有第一凸缘140时，0.35㎜≤L1，示例性的，L1可以为0.35㎜、0.4㎜、0.45㎜、0.5㎜、0.55㎜、0.6㎜或0.65㎜等。
为了降低第一板体110的尺寸，一种实施例中，0.35㎜≤L1≤1.5㎜。例如L1可以为0.35㎜、0.4㎜、0.5㎜、0.6㎜、0.8㎜、1㎜、1.2㎜、1.4㎜或1.5㎜等。当0.35㎜≤L1≤1.5㎜时，既能够保证第一壳体100焊接时传递至第一开口111位置的热量不会过高，又能够防止第一板体110沿垂直于第一侧边113的方向的尺寸过大。
本申请人发现，第一凸缘140的厚度与传递至第一开口111位置的 热量有影响，本实施例中，沿第一开口111至第一凸缘140的方向，第一凸缘140的厚度H2满足0.05㎜≤H2≤0.3㎜。示例性地，H2可以为0.05㎜、0.1㎜、0.15㎜、0.20㎜、0.25㎜或0.30㎜等。本申请人发现，当H2小于0.05㎜时，第一凸缘140对减少热量传递至第开口位置的效果不理想。当H2大于0.3㎜时，第一凸缘140的占用空间过大，增大了电池1的体积以及质量。故当0.05㎜≤H2≤0.3㎜时，能够使第一凸缘140即能够减小第一壳体100焊接时传递至第一开口111位置的热量，又能够使第一凸缘140的占用空间不会过大。
由于极柱组件300伸出第一板体110的部分会占据电池1整体过多的空间，为了最大程度减少极柱组件300占用的有效空间，一种实施例中，第一壳体100还包括沿第一端口130的周向布置的若干板体160。沿第一端口130的周向，第一板体110的尺寸小于或等于若干板体160中的任意一块板体。参见图5，本实施例中，沿第一端口130的周向，第一壳体100包括四块板体，其中，沿第一端口130的周向，第一板体110的尺寸最小，即第一板体110沿第一侧边113长度方向的尺寸最小。上述方案中，伸出第一板体110的极柱组件300能够占用最少的有效空间，使得电池1整体的能量密度更高。
一种实施例中，为了进一步提升电池1的能量密度，可以使沿第一端口130的周向，第一壳体100仅在第一侧边113位置具有第一凸缘140，其他的侧边位置不具有凸缘。
参见图5，一种实施例中，电池壳10还包括第二壳体200，第二壳体200用于与第一壳体100连接，具体可以为焊接，且第二壳体200配置为与第一壳体100连接时密封第一端口130、从而与第一壳体100共同限定出容纳电极组件400的容置腔500。电池壳10为电池1需要的完整的外壳，便于电池1的加工。
第二壳体200的形状可以视具体需求而定，一种实施例中，参见图5，第二壳体200可以呈板状，此时第一凹部120完全容纳电极组件400。另一种实施例中，第二壳体200还可以限定出第二凹部，第二凹部与第一凹部120共同限定出容纳电极组件400的容置腔500，此时第一凹部 120用于容纳电极组件400的一部分。
当第二壳体200呈板状时，第二壳体200与第一壳体100的第一端口130位置的侧边更容易焊接，降低了电池1的加工难度。
参见图4-8，本申请的第二方面还提供了一种电池1，该电池1包括上述任一项的电池壳10。电池1还包括电极组件400以及极柱组件300。电极组件400至少部分设于第一凹部120，电极组件400包括第一极耳410。极柱组件300穿设于第一开口111，极柱组件300与第一极耳410电连接，且极柱组件300与第一壳体100绝缘。其中，极柱组件300距第一侧边113的最近距离L2满足0.1㎜≤L2。示例性地，L2可以为0.1㎜、0.15㎜、0.2㎜、0.25㎜、0.3㎜或0.35㎜等。换句话说，本申请人通过论证，当极柱组件300距第一侧边113的最近距离大于0.1㎜时，第一侧边113焊接过程对于第一开口111位置的密封效果的影响变小。第一壳体100与第二壳体200焊接时，传递至极柱组件300上的热量不会导致极柱组件300因高温而变形。
为了进一步防止第一壳体100与第二壳体200焊接时极柱组价因高温而变形，一种实施例中，第一壳体100的第一侧边113连接第一凸缘140，第一凸缘140朝背离第一凹部120的方向延伸，且0.05㎜≤L2。示例性地，L2可以为0.05㎜、0.1㎜、0.2㎜、0.3㎜、0.4㎜或0.5㎜等。换句话说，第一壳体100设有第一凸缘140相较于第一壳体100不具有第一凸缘140而言，第一壳体100设有第一凸缘140时极柱组件300距第一侧边113的最近距离可以更近。这样能够减小第一板体110沿垂直于第一侧边113方向的尺寸，使得电池1的最小尺寸可以更小。
进一步的实施例中，0.05㎜≤L2≤1㎜。示例性地，L2可以为0.05㎜、0.1㎜、0.3㎜、0.5㎜、0.7㎜、0.9㎜或1㎜等。本方案中，使L2≤1㎜，使得极柱组件300在垂直于第一侧边113的方向上距第一侧边113的距离不会过大，使得电池1的整体占用空间不会过大。
当电池1的第一壳体100具有第一凸缘140时，为了防止第一凸缘140占据过多的空间，一种实施例中，沿第一凸缘140的延伸方向，极 柱组件300背离第一凹部120的端部不超出第一凸缘140相对应的端部。这样，第一凸缘140不会占据电池1过多的有效空间，使得电池1的能量密度更高。
特别地，为了便于焊接，且为了减少极柱组件300在第一壳体100焊接时接收过高的温度，一种实施例中，可以将第一凸缘140沿垂直于第一壁面112的方向的尺寸H1做大，例如H1可以为3㎜至7㎜之间。此时若第一凸缘140沿垂直于第一壁面112方向的尺寸大于极柱组件300沿垂直于第一壁面112的方向的尺寸，可以在第一壳体100与第二壳体200焊接后，将第一凸缘140以及第二壳体200与第一凸缘140焊接的部位进行打磨，使最终第一凸缘140沿垂直于第一壁面112方向的残留的尺寸小于极柱组件300沿垂直于第一壁面112方向的尺寸。
进一步的实施例中，电池壳10还包括第二壳体200，第二壳体200呈板状，第二壳体200包括第二壁面210，第一壳体100与第二壁面210焊接，且第二壁面210密封第一端口130，以使得第二壳体200与第一壳体100共同限定出容纳电极组件400的容置腔500。第一壳体100包括第二板体150，第二板体150用于限定第一端口130，第二板体150包括位于第一端口130位置的第二侧边，第二侧边焊接于第二壁面210，第二板体150包括背离第一凹部120的第三壁面151，沿垂直于第三壁面151的方向，第二壳体200延伸出第二壁面210的尺寸H3满足H3≤0.2㎜。示例性地，H3可以为0.2㎜、0.19㎜、0.18㎜、0.17㎜、0.16㎜、0.15㎜或0.14㎜等。本实施例中，第二壳体200伸出第二板体150一部分，且伸出的距离小于0.2㎜，使得第二板体150能够更便于与第二壳体200的第二壁面210进行焊接。
为了提升电池1的能量密度，一种实施例中，可以在第二板体150与第二壳体200的第二壁面210焊接后，将第二板体150延伸出第三壁面151的部分进行打磨，打磨的尺寸视具体需求而定，本申请不做限定。
本申请的第二方面还提供了一种电子装置，该电子装置包括上述任一实施例中的电池1。
需要说明的是，本申请的说明书及其附图中给出了本申请的较佳的 实施例，但是，本申请可以通过许多不同的形式来实现，并不限于本说明书所描述的实施例，这些实施例不作为对本申请内容的额外限制，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。并且，上述各技术特征继续相互组合，形成未在上面列举的各种实施例，均视为本申请说明书记载的范围；进一步地，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (15)

  1. 一种电池壳，其特征在于，所述电池壳包括第一壳体，所述第一壳体限定出用于容纳电极组件的第一凹部，所述第一壳体具有与所述第一凹部连通的第一端口，所述第一壳体包括用于限定所述第一端口的第一板体，所述第一板体设有与所述第一凹部贯通的第一开口，所述第一开口配置为用于供极柱组件穿设，所述第一板体包括位于所述第一端口位置的第一侧边，所述第一开口距所述第一侧边的最近距离L1满足0.4㎜≤L1。
  2. 根据权利要求1所述的电池壳，其特征在于，
    所述第一侧边连接第一凸缘，所述第一凸缘朝背离所述第一凹部的方向延伸。
  3. 根据权利要求2所述的电池壳，其特征在于，
    所述第一板体包括背离所述第一凹部的第一壁面，沿垂直于所述第一壁面的方向，所述第一凸缘的尺寸H1满足0.2㎜≤H1≤5㎜。
  4. 根据权利要求2所述的电池壳，其特征在于，
    0.35㎜≤L1。
  5. 根据权利要求2所述的电池壳，其特征在于，
    0.35㎜≤L1≤1.5㎜。
  6. 根据权利要求1所述的电池壳，其特征在于，
    沿所述第一开口至所述第一凸缘的方向，所述第一凸缘的厚度H2满足0.05㎜≤H2≤0.3㎜。
  7. 根据权利要求1所述的电池壳，其特征在于，
    所述第一壳体还包括沿所述第一端口的周向布置的若干板体；
    沿所述第一端口的周向，所述第一板体的尺寸小于或等于所述若干板体中的任意一块板体。
  8. 根据权利要求1所述的电池壳，其特征在于，
    所述电池壳还包括第二壳体，所述第二壳体用于与所述第一壳体连接，且所述第二壳体配置为与所述第一壳体连接时密封所述第一端口、从而与所述第一壳体共同限定出容纳电极组件的容置腔。
  9. 根据权利要求8所述的电池壳，其特征在于，
    所述第二壳体呈板状。
  10. 一种电池，其特征在于，包括：
    权利要求1-9任一项所述的电池壳；
    电极组件，至少部分设于所述第一凹部，所述电极组件包括第一极耳；
    极柱组件，穿设于所述第一开口，所述极柱组件与所述第一极耳电连接，且所述极柱组件与所述第一壳体绝缘；
    其中，所述极柱组件距所述第一侧边的最近距离L2满足0.1㎜≤L2。
  11. 根据权利要求10中所述的电池，其特征在于，
    所述第一侧边连接第一凸缘，所述第一凸缘朝背离所述第一凹部的方向延伸；
    0.05㎜≤L2。
  12. 根据权利要求11中所述的电池，其特征在于，
    0.05㎜≤L2≤1㎜。
  13. 根据权利要求10中所述的电池，其特征在于，
    沿所述第一凸缘的延伸方向，所述极柱组件背离所述第一凹部的端部不超出所述第一凸缘相对应的端部。
  14. 根据权利要求10中所述的电池，其特征在于，
    所述电池壳还包括第二壳体，所述第二壳体呈板状，所述第二壳体包括第二壁面，所述第一壳体与所述第二壁面焊接，且所述第二壁面密封所述第一端口，以使得所述第二壳体与所述第一壳体共同限定出容纳所述电极组件的容置腔；
    所述第一壳体包括第二板体，所述第二板体用于限定所述第一端口，所述第二板体包括位于所述第一端口位置的第二侧边，所述第二侧边焊接于所述第二壁面，所述第二板体包括背离所述第一凹部的第三壁面，沿垂直于所述第三壁面的方向，所述第二壳体延伸出所述第二壁面的尺寸H3满足H3≤0.2㎜。
  15. 一种电子装置，其特征在于，包括权利要去10-14任一项所述的电池。
PCT/CN2023/072681 2022-01-21 2023-01-17 电池壳、电池及电子装置 WO2023138586A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013005922A1 (ko) * 2011-07-04 2013-01-10 주식회사 루트제이드 이차 전지
CN109817849A (zh) * 2017-11-21 2019-05-28 宁德新能源科技有限公司 包装壳及电池
CN214477667U (zh) * 2021-06-24 2021-10-22 比亚迪股份有限公司 电池壳及电池
CN214706073U (zh) * 2021-06-24 2021-11-12 比亚迪股份有限公司 电池壳体、电池和电子器件
CN214898535U (zh) * 2021-03-12 2021-11-26 湖北亿纬动力有限公司 电池单体、电池冷却系统及电动汽车
CN114447486A (zh) * 2022-01-21 2022-05-06 宁德新能源科技有限公司 电池壳、电池及电子装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4278222B2 (ja) * 1999-03-17 2009-06-10 三洋電機株式会社 密閉式電池用封口板、密閉式電池及びその製造方法
CN101162765B (zh) * 2006-10-13 2010-10-06 比亚迪股份有限公司 一种电池壳焊接方法
CN207818750U (zh) * 2018-02-12 2018-09-04 宁德时代新能源科技股份有限公司 电池模组
CN110880563B (zh) * 2019-10-10 2021-12-14 宁德新能源科技有限公司 电池壳体组件及具有所述电池壳体组件的电池
CN213026287U (zh) * 2020-08-24 2021-04-20 比亚迪股份有限公司 电池绝缘片、电池盖板和电池包
CN214123982U (zh) * 2021-06-23 2021-09-03 比亚迪股份有限公司 壳体及电池

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013005922A1 (ko) * 2011-07-04 2013-01-10 주식회사 루트제이드 이차 전지
CN109817849A (zh) * 2017-11-21 2019-05-28 宁德新能源科技有限公司 包装壳及电池
CN214898535U (zh) * 2021-03-12 2021-11-26 湖北亿纬动力有限公司 电池单体、电池冷却系统及电动汽车
CN214477667U (zh) * 2021-06-24 2021-10-22 比亚迪股份有限公司 电池壳及电池
CN214706073U (zh) * 2021-06-24 2021-11-12 比亚迪股份有限公司 电池壳体、电池和电子器件
CN114447486A (zh) * 2022-01-21 2022-05-06 宁德新能源科技有限公司 电池壳、电池及电子装置

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