CN210576045U - Sealing structure for high-temperature battery - Google Patents

Sealing structure for high-temperature battery Download PDF

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Publication number
CN210576045U
CN210576045U CN201822080759.1U CN201822080759U CN210576045U CN 210576045 U CN210576045 U CN 210576045U CN 201822080759 U CN201822080759 U CN 201822080759U CN 210576045 U CN210576045 U CN 210576045U
Authority
CN
China
Prior art keywords
insulating ceramic
ceramic ring
metal sleeve
pole
pole column
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.)
Expired - Fee Related
Application number
CN201822080759.1U
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Chinese (zh)
Inventor
周志文
熊平
刘文极
陈运洪
翟勇
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.)
Guangdong Zhicheng Champion Electrical Equipment Technology Co ltd
Original Assignee
Guangdong Zhicheng Champion Electrical Equipment 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 Guangdong Zhicheng Champion Electrical Equipment Technology Co ltd filed Critical Guangdong Zhicheng Champion Electrical Equipment Technology Co ltd
Priority to CN201822080759.1U priority Critical patent/CN210576045U/en
Application granted granted Critical
Publication of CN210576045U publication Critical patent/CN210576045U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The utility model discloses a sealing structure for high-temperature batteries, which comprises a pole column, and a sealing layer, a top cover, a metal sleeve, an insulating ceramic ring cover, an insulating ceramic ring and a metal sleeve bottom plate which are sequentially arranged along the axial direction of the pole column, wherein the top cover, the metal sleeve, the insulating ceramic ring cover, the insulating ceramic ring and the metal sleeve bottom plate are provided with through holes with coincident central axes; the pole is provided with a first pole and a second pole, and the first pole penetrates through the through holes of the top cover, the metal sleeve, the insulating ceramic ring cover, the insulating ceramic ring and the metal sleeve bottom plate; the top cover is provided with an annular first flanging in an upward protruding mode along the edge of the through hole, the top of the first flanging is turned outwards to form a second flanging, a sealing layer for coating the first flanging and the second flanging is arranged between the top cover and the pole, the insulating ceramic ring and the insulating ceramic ring cover are in sealing fit to form a sealed cavity, and molten salt for liquid sealing is filled in the cavity. The utility model has the advantages of compact structure, high connection strength, good sealing effect and the like.

Description

Sealing structure for high-temperature battery
Technical Field
The utility model belongs to the technical field of the battery, concretely relates to seal structure for high temperature battery.
Background
The high-temperature battery is generally divided into five grades used under the environment of 100 ℃, 125 ℃, 150 ℃, 175 ℃, 200 ℃ and above, has the advantages of high energy efficiency, high temperature resistance and the like, and is an energy storage technology with good application prospect. When the battery works in a high-temperature environment, the electrode material and the electrolyte material are likely to be melted or gasified, and because the electrolyte material and the electrolyte material have strong activity at room temperature, the activity of the electrolyte material and the electrolyte material is exponentially increased along with the rise of the temperature, and if the high-temperature battery is sealed and fails, the leakage of the electrolyte material or the electrolyte material can cause short circuit or capacity attenuation of the battery and serious safety accidents.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a seal structure for high temperature battery, this seal structure is compact, and joint strength is high, and is sealed effectual.
In order to realize the above object, the technical scheme of the utility model is that:
a high-temperature battery sealing structure is characterized by comprising a pole, and a sealing layer, a top cover, a metal sleeve, an insulating ceramic ring cover, an insulating ceramic ring and a metal sleeve bottom plate which are sequentially arranged along the axial direction of the pole, wherein the top cover, the metal sleeve, the insulating ceramic ring cover, the insulating ceramic ring and the metal sleeve bottom plate are provided with through holes with coincident central axes; the pole column is provided with a first pole column and a second pole column, the cross section formed by connecting the first pole column and the second pole column is in an inverted T shape, the central axis of the first pole column is superposed with the central axis of the second pole column, the radius of the first pole column is smaller than that of the second pole column, and the axial length of the first pole column is larger than that of the second pole column; the first pole column penetrates through holes of the top cover, the metal sleeve, the insulating ceramic ring cover, the insulating ceramic ring and the metal sleeve bottom plate, an annular first flanging is arranged on the top cover in an upward protruding mode along the edge of the through hole, the top of the first flanging is folded outwards to form a second flanging, a sealing layer for coating the first flanging and the second flanging is arranged between the top cover and the first pole column, the insulating ceramic ring is a ceramic cylinder with one open end and one through hole, the insulating ceramic ring and the insulating ceramic ring cover are in sealing fit to form a sealed cavity, molten salt for liquid seal is filled in the cavity, and the melting point of the molten salt is lower than the temperature of the battery during stable operation; the insulating ceramic ring is wrapped with a metal sleeve, and the metal sleeve is welded and sealed with the metal sleeve bottom plate; the metal sleeve bottom plate is tightly attached to the second pole column.
Furthermore, the pole, the insulating ceramic ring and the metal sleeve are assembled into an integral piece in an interference fit mode.
Furthermore, the first flanging and the second flanging of the top cover are L-shaped.
Further, the inner surface of the first flanging and the surface of the first pole post are arranged in a concave shape to increase the roughness of the surfaces.
The utility model has the advantages that: seal structure for high temperature battery's seal structure is compact, and joint strength is high, and is sealed effectual.
Drawings
Fig. 1 is a schematic structural view of the present invention;
description of the figure numbering: 1. the electrode comprises an electrode column, 2, a sealing layer, 3, a top cover, 4, a metal sleeve, 5, an insulating ceramic ring cover, 6, fused salt, 7, an insulating ceramic ring, 8 and a metal sleeve bottom plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in fig. 1, a high-temperature battery sealing structure is characterized by comprising a pole 1, and a sealing layer 2, a top cover 3, a metal sleeve 4, an insulating ceramic ring cover 5, an insulating ceramic ring 7 and a metal sleeve bottom plate 8 which are sequentially arranged along the axial direction of the pole 1, wherein the top cover 3, the metal sleeve 4, the insulating ceramic ring cover 5, the insulating ceramic ring 7 and the metal sleeve bottom plate 8 are provided with through holes with coincident central axes; the pole 1 is provided with a first pole and a second pole, the cross section formed by connecting the first pole and the second pole is in an inverted T shape, the central axis of the first pole is superposed with the central axis of the second pole, the radius of the first pole is smaller than that of the second pole, and the axial length of the first pole is larger than that of the second pole; the first pole column penetrates through holes of a top cover 3, a metal sleeve 4, an insulating ceramic ring cover 5, an insulating ceramic ring 7 and a metal sleeve bottom plate 8, an annular first flanging is arranged on the edge of the top cover 3 in an upward protruding mode, the top of the first flanging is folded outwards to form a second flanging, a sealing layer for coating the first flanging and the second flanging is arranged between the top cover 3 and the first pole column, the insulating ceramic ring 7 is a ceramic cylinder with one open end and one through hole, the insulating ceramic ring 7 and the insulating ceramic ring cover 5 are in sealing fit to form a sealed cavity, molten salt 6 for liquid seal is filled in the cavity, and the melting point of the molten salt 6 is lower than the temperature of the battery during stable operation; the insulating ceramic ring 7 is coated with a metal sleeve 4, and the metal sleeve 4 and a metal sleeve bottom plate 8 are welded and sealed; the metal sleeve bottom plate 8 is tightly attached to the second pole column.
The pole 1, the insulating ceramic ring 7 and the metal sleeve 4 are assembled into an integral piece in an interference fit mode. Wherein, the first flanging and the second flanging of the top cover 3 are L-shaped.
Wherein the first flange inner surface and the first pole surface are arranged in a concave shape to increase the roughness of the surfaces.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (4)

1. A high-temperature battery sealing structure is characterized by comprising a pole, and a sealing layer, a top cover, a metal sleeve, an insulating ceramic ring cover, an insulating ceramic ring and a metal sleeve bottom plate which are sequentially arranged along the axial direction of the pole, wherein the top cover, the metal sleeve, the insulating ceramic ring cover, the insulating ceramic ring and the metal sleeve bottom plate are provided with through holes with coincident central axes; the pole column is provided with a first pole column and a second pole column, the cross section formed by connecting the first pole column and the second pole column is in an inverted T shape, the central axis of the first pole column is superposed with the central axis of the second pole column, the radius of the first pole column is smaller than that of the second pole column, and the axial length of the first pole column is larger than that of the second pole column; the first pole column penetrates through holes of the top cover, the metal sleeve, the insulating ceramic ring cover, the insulating ceramic ring and the metal sleeve bottom plate, an annular first flanging is arranged on the top cover in an upward protruding mode along the edge of the through hole, the top of the first flanging is folded outwards to form a second flanging, a sealing layer for coating the first flanging and the second flanging is arranged between the top cover and the first pole column, the insulating ceramic ring is a ceramic cylinder with one open end and one through hole, the insulating ceramic ring and the insulating ceramic ring cover are in sealing fit to form a sealed cavity, molten salt for liquid seal is filled in the cavity, and the melting point of the molten salt is lower than the temperature of the battery during stable operation; the insulating ceramic ring is wrapped with a metal sleeve, and the metal sleeve is welded and sealed with the metal sleeve bottom plate; the metal sleeve bottom plate is tightly attached to the second pole column.
2. A high-temperature battery sealing structure as claimed in claim 1, wherein the pole, the insulating ceramic ring and the metal sleeve are assembled into an integral piece in an interference fit manner.
3. A high temperature battery seal structure as claimed in claim 1, wherein the first and second flanges of the top cover are L-shaped.
4. The high temperature battery seal structure of claim 1, wherein the first cuff inner surface and the first post surface are configured to be concave to increase surface roughness.
CN201822080759.1U 2018-12-12 2018-12-12 Sealing structure for high-temperature battery Expired - Fee Related CN210576045U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822080759.1U CN210576045U (en) 2018-12-12 2018-12-12 Sealing structure for high-temperature battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822080759.1U CN210576045U (en) 2018-12-12 2018-12-12 Sealing structure for high-temperature battery

Publications (1)

Publication Number Publication Date
CN210576045U true CN210576045U (en) 2020-05-19

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ID=70637451

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822080759.1U Expired - Fee Related CN210576045U (en) 2018-12-12 2018-12-12 Sealing structure for high-temperature battery

Country Status (1)

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CN (1) CN210576045U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022077686A1 (en) * 2020-10-16 2022-04-21 惠州亿纬锂能股份有限公司 Capacitor, manufacturing method therefor, and use thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022077686A1 (en) * 2020-10-16 2022-04-21 惠州亿纬锂能股份有限公司 Capacitor, manufacturing method therefor, and use thereof

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200519

Termination date: 20211212

CF01 Termination of patent right due to non-payment of annual fee