WO2023030237A1 - 储能装置及电子设备 - Google Patents

储能装置及电子设备 Download PDF

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Publication number
WO2023030237A1
WO2023030237A1 PCT/CN2022/115457 CN2022115457W WO2023030237A1 WO 2023030237 A1 WO2023030237 A1 WO 2023030237A1 CN 2022115457 W CN2022115457 W CN 2022115457W WO 2023030237 A1 WO2023030237 A1 WO 2023030237A1
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WO
WIPO (PCT)
Prior art keywords
bending section
energy storage
opening
storage device
end cover
Prior art date
Application number
PCT/CN2022/115457
Other languages
English (en)
French (fr)
Inventor
陈志勇
Original Assignee
广东微电新能源有限公司
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 广东微电新能源有限公司 filed Critical 广东微电新能源有限公司
Priority to EP22863373.1A priority Critical patent/EP4398385A1/en
Publication of WO2023030237A1 publication Critical patent/WO2023030237A1/zh

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    • 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
    • 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
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • 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
    • 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
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
    • 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
    • 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
    • H01M50/184—Sealing members characterised by their shape or structure
    • 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
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • 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
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
    • 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
    • H01M50/19—Sealing members characterised by the material
    • H01M50/193—Organic material
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • 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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
    • 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 present invention relates to the technical field of energy storage, and more specifically, the present invention relates to an energy storage device and electronic equipment.
  • the upper and lower half shells are usually assembled to form a shell.
  • the electrodes of the energy storage device are welded to the shell to form electrodes, and the electrical connection positions with the outside are formed at different positions of the shell.
  • the electrical connection between the external circuit and the energy storage device needs to be electrically connected to the surface of the shell, and the electrodes in the shell cannot be directly led out, so it is difficult to form a connection with the external circuit on the surface of the shell.
  • An object of the present invention is to provide a new technical solution for an energy storage device and electronic equipment.
  • an energy storage device comprising:
  • the casing has a first opening, and the cavity of the casing communicates with the outside through the first opening;
  • the end cover is connected to the housing, the end cover covers the first opening, and the end cover is provided with a second opening;
  • the metal piece is arranged on the inner side of the end cover, the metal piece has a first boss, and the first boss protrudes from the second opening to the outside of the end cover;
  • An insulating seal is disposed between the metal piece and the end cap.
  • the energy storage device further includes an electric cell, the electric cell is arranged in the cavity, one electrode of the electric cell is electrically connected to the metal part, and the other electrode of the electric cell is electrically connected to the metal part.
  • the end cap or the housing is electrically connected.
  • the battery core is provided with a first electrical connector
  • the first electrical connector includes a first bending section, a second bending section and a third bending section, and the second bending section is connected to the first bending section and the third bending section respectively.
  • the third bending section is electrically connected to the battery core
  • the second bending section is bent to the end face of the battery core relative to the third bending section
  • the first bending section is relatively The second bending section is bent, the first bending section is located between the second bending section and the metal piece, and the first bending section is connected to the metal piece.
  • the metal part is provided with a first insulating part, and the first insulating part is provided with a third opening, and the first bent section is exposed through the third opening and connected with the metal part.
  • the first bending section has a second boss, and the second boss is exposed through the third opening and connected to the metal piece.
  • the cell includes a positive electrode sheet, a negative electrode sheet, and a separator located between the positive electrode sheet and the negative electrode sheet, and the positive electrode sheet, the negative electrode sheet, and the separator are stacked to form a wound structure;
  • One of the positive electrode sheet and the negative electrode sheet is electrically connected to the metal part as an electrode of the battery cell, and the other is electrically connected to the end cap or the casing as the other electrode of the battery cell;
  • the part of the diaphragm protruding from the end of the winding structure is an ironing structure.
  • explosion-proof scoring lines are set on the metal piece.
  • the explosion-proof marking line is arranged around the first boss.
  • the insulating seal includes an annular bottom plate and an annular side wall disposed on the annular bottom plate, the annular bottom plate is located between the end cover and the metal part, the annular The side wall extends into the second opening and is located between the inner wall of the second opening and the first boss.
  • an electronic device which includes the energy storage device described in any one of the above items.
  • a technical effect of the present invention is that, by arranging the metal piece inside the end cover, the electrodes of the energy storage device can be electrically connected to the metal piece, and the first boss on the metal piece extends from the second opening to the end cover
  • the outer side of the energy storage device can lead the electrodes of the energy storage device to the outside of the energy storage device, making it easier to electrically connect with an external circuit.
  • Fig. 1 is a schematic diagram of the external structure of an energy storage device in an embodiment of the present invention.
  • Fig. 2 is a cross-sectional view of an energy storage device in one embodiment of the present invention.
  • Fig. 3 is an exploded view of an energy storage device in one embodiment of the present invention.
  • an energy storage device as shown in Figures 1-3, the energy storage device includes:
  • the casing 11, the casing 11 has a first opening, and the cavity of the casing 11 communicates with the outside through the first opening.
  • the housing 11 is composed of a bottom plate and a side wall surrounding the bottom plate, the bottom plate closes one end of the side wall, and the other end of the side wall forms a first opening.
  • the space inside the bottom plate and the side wall is a cavity.
  • An end cover 12 is connected with the housing 11 , the end cover 12 covers the first opening, and the second opening 120 is disposed on the end cover 12 .
  • the connection between the end cover 12 and the housing 11 is a sealed connection.
  • the metal piece 2, the metal piece 2 is arranged on the inner side of the end cover 12, the metal piece 2 has a first boss 21, and the first boss 21 protrudes from the second opening 120 to the end cover 12 outside.
  • the first boss 21 protrudes from the outer surface of the end cover 12, and the part protruding from the end cover 12 can form a structure on the outside of the energy storage device for connection with an external circuit, making it easier to connect the electrodes on the metal piece 2 It is electrically connected with the external circuit.
  • the insulating seal 3 is arranged between the metal part 2 and the end cover 12 .
  • the insulating seal 3 has the effect of sealing and insulating between the metal part and the end cover 12, which not only ensures the sealing in the energy storage device, but also insulates the end cover from the metal part 2. In this way, a short circuit between the electrodes on the metal part 2 and the electrodes on the end cap 12 can be avoided.
  • the insulating seal 3 is provided with a fourth opening 30 , and the first boss 21 protrudes outside the end cover 12 after passing through the fourth opening 30 and the second opening 120 in sequence.
  • a technical effect of the present invention is that, by arranging the metal piece 2 inside the end cap 12, the electrodes of the energy storage device can be electrically connected to the metal piece 2, and through the first boss 21 on the metal piece 2, the second opening 120 protrudes to the outside of the end cap 12, so that the electrodes of the energy storage device can be led out to the outside of the energy storage device, making it easier to electrically connect with an external circuit.
  • the energy storage device further includes an electric core 4, the electric core 4 is arranged in the cavity, and one electrode of the electric core 4 is electrically connected to the metal part 2.
  • the other electrode of the cell 4 is electrically connected to the end cap 12 or the casing 11 .
  • the electrode of the battery cell 4 electrically connected to the metal part 2 serves as one of the positive pole and the negative pole of the energy storage device.
  • the other of the positive pole and the negative pole can be formed by electrically connecting the other electrode of the battery cell 4 to the casing 11 , or can be formed by electrically connecting the other electrode of the battery cell 4 to the end cap 12 .
  • the positive pole of the battery cell 4 is electrically connected to the metal piece 2, and the metal piece 2 serves as the positive pole of the energy storage device.
  • An external circuit that needs to be electrically connected to the positive pole of the energy storage device is electrically connected to the first boss 21 .
  • the negative pole of the battery cell 3 is electrically connected to the casing 11, so that the casing 11 forms the negative pole of the energy storage device.
  • the negative pole of the battery cell 4 can also be electrically connected to the end cap 12, so that the end cap 12 forms the negative pole of the energy storage device.
  • connection structure between the end cover 12 and the housing 11 may be an electrical connection, for example, the end cover 12 and the housing 11 are welded.
  • the negative pole of the battery cell 3 is electrically connected to the end cap 12 or the casing 11, both the end cap 12 and the casing 11 can be used as the negative pole of the energy storage device.
  • the battery cell 4 is provided with a second electrical connector 8 , and the battery cell 4 is electrically connected to the end cap 12 or the casing 11 through the second electrical connector 8 .
  • the surface of the second electrical connector 8 is provided with a second insulating tape 80 .
  • the second insulating tape 80 can prevent the second electrical connector 8 from contacting and shorting the other electrode at the end of the electric core 4.
  • the second electrical connector 8 is a sheet structure, and the second insulating tape 80 is provided on both surfaces of the second electrical connector 8 .
  • a third insulating member 9 is provided between the second electrical connecting member 8 and the electric core 4, and the third insulating member 9 forms an insulating layer between the second electrical connecting member 8 and the end face of the electric core 4, so as to avoid The second electrical connector 8 forms a short circuit on the end face of the battery core 4 .
  • the electric core 4 has a winding structure, and the middle part of the winding structure is a hollow structure. After the electric core 4 is inserted into the casing 11, the second electrical connector 8 and the casing 11 are welded through the position of the hollow structure.
  • the third insulating member 9 is provided with a fifth opening 90 .
  • the fifth opening 90 corresponds to the hollow structure on the battery cell 4 , and after the battery cell 4 is put into the housing 11 , part of the structure of the second electrical connector 8 can be exposed in the fifth opening 90 . In this way, it is easier to weld the second electrical connector 8 and the housing 11 .
  • a part of the second electrical connector 8 is located on the side of the electric core 4 and forms an electrical connection, and another part of the second electrical connector 8 is bent toward the end surface of the electric core 4 close to the bottom of the casing 11 .
  • a notch is provided on the third insulating member 9 , and the notch avoids the second electrical connecting member 8 .
  • the third insulator 9 has a ring structure, and a part of the outer structure of the ring structure is cut off to form a gap, so as to prevent the structures of the third insulator 9 and the second electrical connector 8 from squeezing and interfering with each other.
  • the battery core 4 is provided with a first electrical connector 5 .
  • the first electrical connector 5 includes a first bending section 51, a second bending section 52 and a third bending section 53, and the second bending section 52 is connected to the first bending section 51 and the third bending section 53 respectively.
  • the third bending section 53 is connected electrically to the battery cell 4 , and the second bending section 52 is bent to the battery cell 4 relative to the third bending section 53
  • the end surface of the first bending section 51 is bent relative to the second bending section 52, and the first bending section 51 is located between the second bending section 52 and the metal part 2,
  • the first bent section 51 is connected to the metal part 2 .
  • the first electrical connection member 5 is electrically connected to the battery core 4 through the third bending section 53 .
  • the second bending section 52 is bent to the end surface of the electric core 4 relative to the third bending section 53, so that the second bending section 52 is flatly laid on the end surface of the electric core 4. In this way, the space occupied by the second bending section 52 can be reduced.
  • the first bending section 51 is bent relative to the second bending section 52 , so that the first bending section 51 and the second bending section 52 are stacked together, so as to further reduce the space occupied by the first electrical connector 5 .
  • the third bent section 53 may be electrically connected to the battery cell 4 first, and then the battery cell 4 is put into the casing 11 . After putting the electric core 4 in, the first bent section 51 is electrically connected to the metal piece 2 . Finally, the first electrical connector 5 is bent so that the second bent section 52 is flatly laid on the end surface of the electric core 4 , and the first bent section 51 and the second bent section 52 are laminated.
  • the first electrical connector 5 includes a first bending section 51, a second bending section 52 and a third bending section 53, the first bending section 51 and the second bending section 52 can provide sufficient length dimension, so that the second A bent section 51 and the metal piece 2 are welded together more easily. This reduces the difficulty of assembly.
  • a first insulating tape 50 is disposed on the surface of the first electrical connector 5 , and the first insulating tape 50 can form insulation protection on the surface of the first electrical connector 5 .
  • the first electrical connector 5 is a sheet structure, and first insulating tapes 50 are provided on both surfaces of the first electrical connector 5 .
  • a first insulating part 6 is provided on the metal part 2
  • a third opening 60 is provided on the first insulating part 6, and the first bending The segment 51 is exposed through the third opening 60 and connected to the metal part 2 .
  • the first insulating part 6 is located on the side of the metal part 2 facing the first electrical connection part 5 .
  • the first insulating member 6 can prevent the metal member 2 from being in contact with structures other than the first bent section 51 , thereby avoiding short circuit problems. For example, avoid contact between the metal part 2 and the battery core 4 .
  • the first bent section 51 has a second boss, and the second boss is exposed through the third opening 60 and connected to the metal part 2 .
  • the first bending section 51 is bent relative to the second bending section 52 and is located on one side of the metal piece 2, and the second boss enables the first bending section 51 to provide sufficient thickness to expose the third
  • the opening 60 is in contact with the metal piece 2 , so that the first bent section 51 is more easily electrically connected to the metal piece 2 .
  • the first bent section 51 abuts against the surface of the first insulating member 6 , and the second boss exposes the third opening 60 to contact the surface of the metal member 2 , thereby electrically connecting the second boss and the metal member 2 .
  • a second insulating member 7 is provided between the first bending section 51 and the second bending section 52, and the second insulating member 7 can prevent the surfaces of the first bending section 51 and the second bending section 52 from contact, thereby preventing the second bent section 52 from being punctured.
  • the first bent section 51 is welded to the metal piece 2 .
  • the surface of the first bending section 51 has welding spots, and the second insulating member 7 can prevent the welding spots from piercing the second bending section 52 . In this way, the first electrical connector 5 can be protected from being damaged, and effective insulation is formed between the first bent section 51 and the end surface of the electric core 4 .
  • the cell 4 includes a positive electrode sheet, a negative electrode sheet and a separator between the positive electrode sheet and the negative electrode sheet.
  • the positive electrode sheet, the negative electrode sheet and the separator are stacked to form a wound structure.
  • One of the positive electrode sheet and the negative electrode sheet is electrically connected to the metal part 2 as an electrode of the battery cell 4, and the other is electrically connected to the end cap 12 or the casing 11 as the other electrode of the battery cell 4 .
  • the part of the diaphragm protruding from the end of the winding structure is an ironing structure.
  • the electric core 4 is a winding structure, and the diaphragm protruding from the end of the electric core 4 is shrunk and pressed down by ironing, thereby reducing the space occupied by the diaphragm at the end, so as to reduce the diaphragm and increase the occupancy of the electric core 4 Space.
  • the metal piece 2 is provided with an explosion-proof score line 22 .
  • the explosion-proof marking line 22 can burst and release pressure when the internal pressure of the energy storage device 2 is high, thereby preventing the energy storage device from exploding.
  • the explosion-proof marking line 22 is arranged around the first boss 21 .
  • the explosion-proof score line 22 is arranged around the first boss 21, so that the explosion-proof score line 22 is at a thinner position, and it is easier to rupture when the internal pressure is high, so as to complete the pressure relief function.
  • the explosion-proof score line 22 is exposed in the second opening 120 to prevent the end cover 12 from affecting the explosion-proof score line 22 to release pressure.
  • the insulating seal 3 includes an annular bottom plate and an annular side wall disposed on the annular bottom plate, and the annular bottom plate is located between the end cover 12 and the metal part 2 , the annular sidewall extends into the second opening 120 and is located between the inner wall of the second opening 120 and the first boss 21 .
  • the annular bottom plate forms a sealing and insulating effect between the inner side of the end cover 12 and the metal part 2 .
  • the annular sidewall forms an insulating effect between the inner wall of the second opening 120 and the first boss 21 , preventing the first boss 21 from contacting the inner wall of the second opening 120 .
  • the explosion-proof score line 22 is exposed on the inner side of the annular sidewall.
  • the inner side of the annular sidewall forms a fourth opening 30 .
  • an electronic device in one embodiment of the present invention, includes the energy storage device according to any one of the above embodiments.
  • the energy storage device of the electronic equipment has the technical effect brought by the above energy storage device.

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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)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

一种储能装置及电子设备。该储能装置包括：壳体，所述壳体具有第一开口，所述壳体的腔体通过所述第一开口与外界连通。端盖，所述端盖与所述壳体连接，所述端盖覆盖所述第一开口，所述端盖上设置有第二开口。金属件，所述金属件设置在所述端盖的内侧，所述金属件具有第一凸台，所述第一凸台由所述第二开口伸出至端盖的外侧。绝缘密封件，所述绝缘密封件设置在所述金属件与所述端盖之间。

Description

储能装置及电子设备
本发明要求于2021年08月31日提交中国专利局，申请号为202122086907.2，申请名称为“储能装置及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本发明中。
技术领域
本发明涉及储能技术领域，更具体地，本发明涉及一种储能装置及电子设备。
背景技术
目前，在储能装置的结构中，通常采用上下半壳组装形成壳体。储能装置的电极通过与壳体焊接在壳体上形成电极，在壳体的不同位置形成与外部导通的电连接位置。外部电路与储能装置电连接需要与壳体表面形成电连接，壳体内的电极不能直接引出，在壳体表面与外部电路形成连接的难度大。
发明内容
本发明的一个目的是提供一种储能装置及电子设备的新技术方案。
根据本发明的一个方面，提供一种储能装置，该储能装置包括：
壳体，所述壳体具有第一开口，所述壳体的腔体通过所述第一开口与外界连通；
端盖，所述端盖与所述壳体连接，所述端盖覆盖所述第一开口，所述端盖上设置有第二开口；
金属件，所述金属件设置在所述端盖的内侧，所述金属件具有第一凸台，所述第一凸台由所述第二开口伸出至端盖的外侧；
绝缘密封件，所述绝缘密封件设置在所述金属件与所述端盖之间。
可选地，所述储能装置还包括电芯，所述电芯设置在所述腔体内，所述电芯的一个电极与所述金属件电连接，所述电芯的另一个电极与所述端盖或所述壳体电连接。
可选地，所述电芯上设置有第一电连接件；
所述第一电连接件包括第一弯折段、第二弯折段和第三弯折段，所述第二弯折段分别与所述第一弯折段和所述第三弯折段连接，所述第三弯折段与所述电芯电连接，所述第二弯折段相对于所述第三弯折段弯折至电芯的端面，所述第一弯折段相对于所述第二弯折段弯折，所述第一弯折段位于所述第二弯折段与所述金属件之间，所述第一弯折段与所述金属件连接。
可选地，所述金属件上设置有第一绝缘件，所述第一绝缘件上设置有第三开口，所述第一弯折段通过所述第三开口露出与所述金属件连接。
可选地，所述第一弯折段具有第二凸台，所述第二凸台通过所述第三开口露出与所述金属件连接。
可选地，所述电芯包括正极片、负极片和位于所述正极片与负极片之间的隔膜，正极片、负极片和隔膜层叠设置并形成卷绕结构；
所述正极片和负极片中的一个作为电芯的一个电极与所述金属件电连接，另一个作为电芯的另一个电极与所述端盖或所述壳体电连接；
所述隔膜伸出于所述卷绕结构端部的部分为烫边结构。
可选地，所述金属件上设置有防爆刻线。
可选地，所述防爆刻线环绕所述第一凸台设置。
可选地，所述绝缘密封件包括环状底板和设置在所述环状底 板上的环状侧壁，所述环状底板位于所述端盖与所述金属件之间，所述环状侧壁伸入所述第二开口且位于所述第二开口的内壁与所述第一凸台之间。
根据本发明的另一个方面，提供一种电子设备，该电子设备包括如上任意一项所述的储能装置。
本发明的一个技术效果在于，通过在端盖的内侧设置金属件，能够使储能装置的电极与金属件电连接，并且通过金属件上的第一凸台由第二开口伸出至端盖的外侧，能够使储能装置的电极引出至储能装置的外侧，更容易与外部电路电连接。
通过以下参照附图对本发明的示例性实施例的详细描述，本发明的其它特征及其优点将会变得清楚。
附图说明
构成说明书的一部分的附图描述了本发明的实施例，并且连同说明书一起用于解释本发明的原理。
图1是本发明一个实施例中的储能装置的外部结构示意图。
图2是本发明一个实施例中的储能装置的剖面图。
图3是本发明一个实施例中的储能装置的分解图。
附图标记说明：
11-壳体，12-端盖，120-第二开口，2-金属件，21-第一凸台，22-防爆刻线，3-绝缘密封件，30-第四开口，4-电芯，5-第一电连接件，50-第一绝缘胶纸，51-第一弯折段，52-第二弯折段，53-第三弯折段，6-第一绝缘件，60-第三开口，7-第二绝缘件，8-第二电连接件，80-第二绝缘胶纸，9-第三绝缘件，90-第五开口。
具体实施方式
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和 步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术和设备可能不作详细讨论，但在适当情况下，所述技术和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
根据本发明的一个实施例，提供了一种储能装置，如图1-图3所示，该储能装置包括：
壳体11，所述壳体11具有第一开口，所述壳体11的腔体通过所述第一开口与外界连通。例如，壳体11由底板和环绕底板设置的侧壁组成，底板封闭侧壁的一端，侧壁的另一端形成第一开口。底板与侧壁内部的空间为腔体。
端盖12，所述端盖12与所述壳体11连接，所述端盖12覆盖所述第一开口，所述端盖12上设置有第二开口120。端盖12与壳体11之间连接的部分为密封连接。
金属件2，所述金属件2设置在所述端盖12的内侧，所述金属件2具有第一凸台21，所述第一凸台21由所述第二开口120伸出至端盖12的外侧。第一凸台21伸出于端盖12的外侧表面，伸出端盖12的部分能够在储能装置的外侧形成用于与外部电路连接的结构，使连接在金属件2上的电极更容易与外部电路电连接。
绝缘密封件3，所述绝缘密封件3设置在所述金属件2与所述端盖12之间。绝缘密封件3在金属件与端盖12之间起到密封和绝缘的效果，既保障了储能装置内的密封性，又使端盖与金属 件2绝缘。这样能够避免金属件2上的电极与端盖12上的电极之间短路。
例如，绝缘密封件3上设置有第四开口30，第一凸台21依次穿过第四开口30和第二开口120后，伸出于端盖12的外侧。
本发明的一个技术效果在于，通过在端盖12的内侧设置金属件2，能够使储能装置的电极与金属件2电连接，并且通过金属件2上的第一凸台21由第二开口120伸出至端盖12的外侧，能够使储能装置的电极引出至储能装置的外侧，更容易与外部电路电连接。
在一个实施例中，如图2所示，所述储能装置还包括电芯4，所述电芯4设置在所述腔体内，所述电芯4的一个电极与所述金属件2电连接，所述电芯4的另一个电极与所述端盖12或所述壳体11电连接。
在该实施例中，电芯4的与金属件2电连接的电极作为储能装置的正极和负极中的一个。正极和负极中的另一个可以是电芯4的另一个电极与壳体11电连接形成，也可以是电芯4的另一个电极与端盖12电连接形成。
例如，电芯4的正极与金属件2电连接，金属件2作为储能装置的正极。需要与储能装置的正极电连接的外部电路与第一凸台21电连接。
电芯3的负极与壳体11电连接，使壳体11形成储能装置的负极。电芯4的负极还可以与端盖12电连接，使端盖12形成储能装置的负极。
例如，端盖12与壳体11的连接结构可以为电连接，例如端盖12与壳体11焊接。电芯3的负极与端盖12或壳体11电连接时，端盖12与壳体11均可以作为储能装置的负极。
可选地，电芯4上设置有第二电连接件8，电芯4通过第二电连接件8与端盖12或壳体11电连接。例如，第二电连接件8的表面设置有第二绝缘胶纸80。第二绝缘胶纸80能够避免第二电 连接件8与电芯4的端部的另一个电极接触短路。
例如，第二电连接件8为片状结构，在第二电连接件8的两个表面均设置第二绝缘胶纸80。
可选地，第二电连接件8与电芯4之间设置有第三绝缘件9，第三绝缘件9在第二电连接件8与电芯4的端面之间形成绝缘层，以避免第二电连接件8在电芯4的端面上形成短路。
例如，电芯4为卷绕结构，卷绕结构中部为空心结构，在将电芯4入壳体11后，通过空心结构的位置伸入对第二电连接件8与壳体11进行焊接。例如，第三绝缘件9上设置有第五开口90。第五开口90与电芯4上的空心结构对应，在电芯4放入壳体11内之后，能够使第二电连接件8的部分结构暴露在第五开口90内。这样能够更容易对第二电连接件8与壳体11进行焊接。
可选地，第二电连接件8的一部分位于电芯4的侧面位置并形成电连接，第二电连接件8的另一部分弯折向电芯4的靠向壳体11底部的端面。第三绝缘件9上设置有缺口，该缺口避让第二电连接件8。例如，第三绝缘件9位圆环结构，切去圆环结构外侧的一部分结构形成缺口，避免第三绝缘件9与第二电连接件8的结构相互挤压干扰。
在一个实施例中，如图2，图3所示，所述电芯4上设置有第一电连接件5。
所述第一电连接件5包括第一弯折段51、第二弯折段52和第三弯折段53，所述第二弯折段52分别与所述第一弯折段51和所述第三弯折段53连接，所述第三弯折段53与所述电芯4电连接，所述第二弯折段52相对于所述第三弯折段53弯折至电芯4的端面，所述第一弯折段51相对于所述第二弯折段52弯折，所述第一弯折段51位于所述第二弯折段52与所述金属件2之间，所述第一弯折段51与所述金属件2连接。
在该实施例中，第一电连接件5通过第三弯折段53与电芯4电连接。第二弯折段52相对于第三弯折段53弯折至电芯4的端 面，使第二弯折段52平铺在电芯4的端面。这样能够减小第二弯折段52占用的空间。
第一弯折段51相对于第二弯折段52弯折，使第一弯折段51与第二弯折段52层叠在一起，以进一步减小第一电连接件5占用的空间。
例如，在装配储能装置时，可以先将第三弯折段53与电芯4电连接，再将电芯4放入壳体11内。放入电芯4后将第一弯折段51与金属件2电连接。最后将第一电连接件5弯折，使第二弯折段52平铺在电芯4的端面，第一弯折段51与第二弯折段52层叠。
也可以先将第一电连接件5与电芯4以及金属件2电连接后，将电芯4装配到壳体11内并将端盖12覆盖在第一开口。
第一电连接件5包括第一弯折段51、第二弯折段52和第三弯折段53，第一弯折段51与第二弯折段52能够提供足够的长度尺寸，使第一弯折段51与金属件2更容易焊接在一起。这样降低了装配难度。
可选地，在第一电连接件5的表面设置有第一绝缘胶纸50，第一绝缘胶纸50能够在第一电连接件5的表面形成绝缘保护。
例如，第一电连接件5为片状结构，在第一电连接件5的两个表面均设置第一绝缘胶纸50。
在一个实施例中，如图2，图3所示，所述金属件2上设置有第一绝缘件6，所述第一绝缘件6上设置有第三开口60，所述第一弯折段51通过所述第三开口60露出与所述金属件2连接。
在该实施例中，第一绝缘件6位于金属件2朝向第一电连接件5的一侧。第一绝缘件6能够避免金属件2与第一弯折段51以外的其他部件结构接触，避免出现短路问题。例如，避免金属件2与电芯4接触。
在一个实施例中，所述第一弯折段51具有第二凸台，所述第二凸台通过所述第三开口60露出与所述金属件2连接。
在该实施例中，第一弯折段51相对于第二弯折段52弯折后 位于金属件2的一侧，第二凸台使第一弯折段51能够提供足够的厚度露出第三开口60与金属件2接触，从而使第一弯折段51更容易与金属件2电连接。
例如，第一弯折段51与第一绝缘件6的表面相抵，第二凸台露出第三开口60与金属件2的表面接触，从而将第二凸台与金属件2电连接。
可选地，在第一弯折段51与第二弯折段52之间设置有第二绝缘件7，第二绝缘件7能够避免第一弯折段51与第二弯折段52的表面接触，从而避免第二弯折段52被穿刺。例如，第一弯折段51与金属件2焊接。第一弯折段51的表面具有焊点，第二绝缘件7能够避免焊点穿刺在第二弯折段52上。这样能够保护第一电连接件5不被破坏，并且在第一弯折段51与电芯4的端面之间形成了有效的绝缘。
在一个实施例中，所述电芯4包括正极片、负极片和位于所述正极片与负极片之间的隔膜，正极片、负极片和隔膜层叠设置并形成卷绕结构。
所述正极片和负极片中的一个作为电芯4的一个电极与所述金属件2电连接，另一个作为电芯4的另一个电极与所述端盖12或所述壳体11电连接。
所述隔膜伸出于所述卷绕结构端部的部分为烫边结构。
在该实施例中，电芯4为卷绕结构，通过烫边使伸出电芯4端部的隔膜收缩下压，从而降低隔膜在端部占用的空间，以减少隔膜使电芯4增加占用的空间。
在一个实施例中，如图2所示，所述金属件2上设置有防爆刻线22。
防爆刻线22能够在储能装置2内部气压较大时破裂泄压，从而避免储能装置爆炸。
在一个实施例中，所述防爆刻线22环绕所述第一凸台21设置。
在金属件2上，第一凸台21所在的位置厚度较厚。将防爆刻线22围绕第一凸台21设置，使防爆刻线22处于厚度较薄的位置，更容易在内部压力较大使破裂，以完成泄压功能。
例如，防爆刻线22暴露在第二开口120内，以避免端盖12影响防爆刻线22泄压。
在一个实施例中，所述绝缘密封件3包括环状底板和设置在所述环状底板上的环状侧壁，所述环状底板位于所述端盖12与所述金属件2之间，所述环状侧壁伸入所述第二开口120且位于所述第二开口120的内壁与所述第一凸台21之间。
在该实施例中，环状底板在端盖12的内侧与金属件2之间形成密封和绝缘的效果。环状侧壁在第二开口120的内壁与第一凸台21之间形成绝缘效果，避免第一凸台21与第二开口120的内壁接触。
例如，防爆刻线22暴露于环状侧壁的内侧。环状侧壁的内侧形成第四开口30。
在本发明的一个实施例中，提供了一种电子设备，该电子设备包括如上述实施例中任意一项所述的储能装置。该电子设备的储能装置具有上述储能装置所带来的技术效果。
上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。
虽然已经通过示例对本发明的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上示例仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围和精神的情况下，对以上实施例进行修改。本发明的范围由所附权利要求来限定。

Claims (10)

  1. 一种储能装置，其特征在于，包括：
    壳体(11)，所述壳体(11)具有第一开口，所述壳体(11)的腔体通过所述第一开口与外界连通；
    端盖(12)，所述端盖(12)与所述壳体(11)连接，所述端盖(12)覆盖所述第一开口，所述端盖(12)上设置有第二开口(120)；
    金属件(2)，所述金属件(2)设置在所述端盖(12)的内侧，所述金属件(2)具有第一凸台(21)，所述第一凸台(21)由所述第二开口(120)伸出至端盖(12)的外侧；
    绝缘密封件(3)，所述绝缘密封件(3)设置在所述金属件(2)与所述端盖(12)之间。
  2. 根据权利要求1所述的储能装置，其特征在于，所述储能装置还包括电芯(4)，所述电芯(4)设置在所述腔体内，所述电芯(4)的一个电极与所述金属件(2)电连接，所述电芯(4)的另一个电极与所述端盖(12)或所述壳体(11)电连接。
  3. 根据权利要求2所述的储能装置，其特征在于，所述电芯(4)上设置有第一电连接件(5)；
    所述第一电连接件(5)包括第一弯折段(51)、第二弯折段(52)和第三弯折段(53)，所述第二弯折段(52)分别与所述第一弯折段(51)和所述第三弯折段(53)连接，所述第三弯折段(53)与所述电芯(4)电连接，所述第二弯折段(52)相对于所述第三弯折段(53)弯折至电芯(4)的端面，所述第一弯折段(51)相对于所述第二弯折段(52)弯折，所述第一弯折段(51) 位于所述第二弯折段(52)与所述金属件(2)之间，所述第一弯折段(51)与所述金属件(2)连接。
  4. 根据权利要求3所述的储能装置，其特征在于，所述金属件(2)上设置有第一绝缘件(6)，所述第一绝缘件(6)上设置有第三开口(60)，所述第一弯折段(51)通过所述第三开口(60)露出与所述金属件(2)连接。
  5. 根据权利要求4所述的储能装置，其特征在于，所述第一弯折段(51)具有第二凸台，所述第二凸台通过所述第三开口(60)露出与所述金属件(2)连接。
  6. 根据权利要求2所述的储能装置，其特征在于，所述电芯(4)包括正极片、负极片和位于所述正极片与负极片之间的隔膜，正极片、负极片和隔膜层叠设置并形成卷绕结构；
    所述正极片和负极片中的一个作为电芯(4)的一个电极与所述金属件(2)电连接，另一个作为电芯(4)的另一个电极与所述端盖(12)或所述壳体(11)电连接；
    所述隔膜伸出于所述卷绕结构端部的部分为烫边结构。
  7. 根据权利要求1所述的储能装置，其特征在于，所述金属件(2)上设置有防爆刻线(22)。
  8. 根据权利要求7所述的储能装置，其特征在于，所述防爆刻线(22)环绕所述第一凸台(21)设置。
  9. 根据权利要求1所述的储能装置，其特征在于，所述绝缘密封件(3)包括环状底板和设置在所述环状底板上的环状侧壁，所述环状底板位于所述端盖(12)与所述金属件(2)之间，所述 环状侧壁伸入所述第二开口(120)且位于所述第二开口(120)的内壁与所述第一凸台(21)之间。
  10. 一种电子设备，其特征在于，包括如权利要求1-9任意一项所述的储能装置。
PCT/CN2022/115457 2021-08-31 2022-08-29 储能装置及电子设备 WO2023030237A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6486444A (en) * 1986-09-27 1989-03-31 Hitachi Maxell Explosion-prevented sealed battery with lead terminal
CN101345293A (zh) * 2008-08-20 2009-01-14 苏州星恒电源有限公司 一种铝壳锂离子电池
CN209804723U (zh) * 2019-04-30 2019-12-17 宁德时代新能源科技股份有限公司 顶盖组件以及二次电池
CN112635922A (zh) * 2020-12-16 2021-04-09 宁德新能源科技有限公司 电芯、电池及用电设备
CN112952300A (zh) * 2021-03-29 2021-06-11 厦门海辰新能源科技有限公司 电芯、电芯组件、电池及使用电池的装置
CN215911481U (zh) * 2021-08-31 2022-02-25 广东微电新能源有限公司 储能装置及电子设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6486444A (en) * 1986-09-27 1989-03-31 Hitachi Maxell Explosion-prevented sealed battery with lead terminal
CN101345293A (zh) * 2008-08-20 2009-01-14 苏州星恒电源有限公司 一种铝壳锂离子电池
CN209804723U (zh) * 2019-04-30 2019-12-17 宁德时代新能源科技股份有限公司 顶盖组件以及二次电池
CN112635922A (zh) * 2020-12-16 2021-04-09 宁德新能源科技有限公司 电芯、电池及用电设备
CN112952300A (zh) * 2021-03-29 2021-06-11 厦门海辰新能源科技有限公司 电芯、电芯组件、电池及使用电池的装置
CN215911481U (zh) * 2021-08-31 2022-02-25 广东微电新能源有限公司 储能装置及电子设备

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