CN215451575U - Rechargeable lithium battery - Google Patents

Rechargeable lithium battery Download PDF

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Publication number
CN215451575U
CN215451575U CN202121128500.5U CN202121128500U CN215451575U CN 215451575 U CN215451575 U CN 215451575U CN 202121128500 U CN202121128500 U CN 202121128500U CN 215451575 U CN215451575 U CN 215451575U
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CN
China
Prior art keywords
winding core
lithium battery
rechargeable lithium
shell
steel cap
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Active
Application number
CN202121128500.5U
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Chinese (zh)
Inventor
宋浩堂
李林森
黄明咏
文辰
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Dongguan Weike New Energy Co ltd
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Dongguan Weike New Energy Co ltd
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Priority to CN202121128500.5U priority Critical patent/CN215451575U/en
Application granted granted Critical
Publication of CN215451575U publication Critical patent/CN215451575U/en
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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

Abstract

The utility model relates to the technical field of batteries, in particular to a rechargeable lithium battery which comprises a shell, a winding core, a positive terminal, a negative terminal, a sealing element, a protective plate, an insulating element, a steel cap, a pressure release valve and a positive connecting sheet, wherein the positive and negative electrodes are arranged at the upper end of the winding core.

Description

Rechargeable lithium battery
Technical Field
The utility model relates to the technical field of batteries, in particular to a rechargeable lithium battery.
Background
Batteries can be classified into various types according to their sizes. The types commonly used are AAA, AA, C and D, which correspond to the types 7, 5, 2 and 1 batteries commonly called, wherein the types 1 and 5 batteries are most widely used. The No. 1 battery is widely applied to civil, military and special DC power supplies, and the No. 5 battery is more widely applied in daily life, such as digital cameras, electric toys and the like.
However, the current battery cell is assembled with PACK, and the battery cell and PACK need to be assembled twice and tested respectively, so that the existing battery is complex to process and high in production cost.
SUMMERY OF THE UTILITY MODEL
The present invention provides a rechargeable lithium battery that addresses the problems of the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a rechargeable lithium battery, which comprises a shell, a winding core, a positive terminal, a negative terminal, a sealing element, a protective plate, an insulating part, a steel cap, a pressure release valve and a positive connecting sheet, wherein the winding core is arranged in the shell, the sealing element is arranged at the upper part of the winding core, the protective plate is arranged in the sealing element, the upper end of the winding core is provided with a positive electrode and a negative electrode, the positive electrode of the winding core is connected with the positive terminal, the negative electrode of the winding core is connected with the negative terminal, the positive terminal and the negative terminal are both connected with the protective plate, the positive terminal is connected with the steel cap through the positive connecting sheet, the insulating part is arranged between the shell and the steel cap, the pressure release valve is arranged at the lower end of the steel cap, and the steel cap is provided with a plurality of air release holes, the lower end of the winding core is provided with a negative end, the negative end is connected with the shell, and the outer surface of the positive terminal and the outer surface of the negative terminal are both provided with nickel plating layers.
Preferably, a gasket is arranged between the steel cap and the pressure release valve, the gasket is made of metal materials, and the gasket is annular.
Preferably, the bottom of the winding core and the shell are provided with insulating sheets, and the insulating sheets are made of corrosion-resistant materials.
Preferably, the bottom of the pressure release valve is provided with a nickel sheet, the lower end of the nickel sheet is connected with the positive connecting sheet, and the middle part of the nickel sheet is provided with an avoiding hole.
Preferably, the outer surface of the protection plate is injected with a sealing protection layer, and the sealing protection layer is made of corrosion-resistant materials.
Preferably, the sealing member is made of a resin material.
Preferably, the upper end of the shell is provided with an annular yielding part, and the cross section of the annular yielding part is semicircular.
Preferably, the upper part of the insulating part is provided with a mounting cavity, and the steel cap, the gasket and the pressure release valve are sequentially mounted in the mounting cavity from top to bottom.
The utility model has the beneficial effects that:
the utility model provides a rechargeable lithium battery, which comprises a shell, a winding core, a positive terminal, a negative terminal, a sealing element, a protective plate, an insulating part, a steel cap, a pressure release valve and a positive connecting sheet, wherein the winding core is arranged in the shell, the sealing element is arranged at the upper part of the winding core, the protective plate is arranged in the sealing element, the upper end of the winding core is provided with a positive electrode and a negative electrode, the positive electrode of the winding core is connected with the positive terminal, the negative electrode of the winding core is connected with the negative terminal, the positive terminal and the negative terminal are both connected with the protective plate, the positive terminal is connected with the steel cap through the positive connecting sheet, the insulating part is arranged between the shell and the steel cap, the pressure release valve is arranged at the lower end of the steel cap, and the steel cap is provided with a plurality of air release holes, the utility model relates to a packaging structure of a PACK, which comprises a shell, a winding core, a sealing element, a protective plate, a sealing element, a steel cap and a nickel-plated layer, wherein the lower end of the winding core is provided with a negative end, the negative end is connected with the shell, the outer surface of a positive terminal and the outer surface of a negative terminal are both provided with nickel-plated layers.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a top view of the present invention.
The reference numerals are respectively:
the structure comprises a shell (1), a winding core (2), a positive terminal (3), a negative terminal (4), a sealing element (5), a protective plate (6), an insulating element (7), a steel cap (8), a pressure release valve (9), a positive connecting sheet (10), a positive electrode (11), a negative electrode (12), a gasket (13), an insulating sheet (14), a nickel sheet (15), an avoiding hole (16), an avoiding part (17), a mounting cavity (18), an air leakage hole (19) and a negative electrode end (20).
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention is described in detail below with reference to the attached drawings.
As shown in fig. 1-4, the rechargeable lithium battery provided by the present invention includes a case 1, a winding core 2, a positive terminal 3, a negative terminal 4, a sealing member 5, a protective plate 6, an insulating member 7, a steel cap 8, a pressure relief valve 9, and a positive connecting piece 10, wherein the winding core 2 is installed inside the case 1, the sealing member 5 is installed on the upper portion of the winding core 2, the protective plate 6 is installed inside the sealing member 5, the upper end of the winding core 2 is provided with a positive electrode 11 and a negative electrode 12, the positive electrode 11 of the winding core 2 is connected to the positive terminal 3, the negative electrode 12 of the winding core 2 is connected to the negative terminal 4, both the positive terminal 3 and the negative terminal 4 are connected to the protective plate 6, the positive terminal 3 is connected to the steel cap 8 through the positive connecting piece 10, the insulating member 7 is installed between the case 1 and the steel cap 8, the pressure release valve 9 is arranged at the lower end of the steel cap 8, the steel cap 8 is provided with a plurality of air release holes 19, the lower end of the winding core 2 is provided with a negative end 20, the negative end 20 is connected with the shell 1, the outer surface of the positive terminal 3 and the outer surface of the negative terminal 4 are both provided with nickel-plated layers, the winding core 2 and the protection plate 6 are arranged in the same cavity, the protection plate 6 is protected by the sealing element 5, and the protection plate 6 is prevented from being corroded by electrolyte in the winding core 2.
In this embodiment, steel cap 8 with be provided with gasket 13 between the relief valve 9, gasket 13 adopts the metal material to make, gasket 13 is the annular, and relief valve 9 can be with the inside gas outgoing of battery when the battery expands gas, and gasket 13 is used for consolidating the relief valve all around, prevents that gas from spilling over from relief valve 9 lateral part.
In this embodiment, roll up core 2 bottom with be provided with insulating piece 14 between the shell 1, insulating piece 14 adopts corrosion-resistant material to make, and insulating piece 14 prevents to roll up core 2 bottom and shell 1 and is connected.
In this embodiment, the bottom of the pressure release valve 9 is provided with a nickel sheet 15, the lower end of the nickel sheet 15 is connected with the positive connecting sheet 10, the middle of the nickel sheet 15 is provided with a avoiding hole 16, the pressure release valve 9 is made of a metal sheet, the upper part of the insulating part 7 is provided with an installation cavity 18, the steel cap 8, the gasket 13, the pressure release valve 9 is sequentially installed inside the installation cavity 18 from top to bottom.
In this embodiment, the outer surface of the protection plate 6 is injection-molded with a sealing protection layer, the sealing protection layer is made of corrosion-resistant material, and the sealing protection layer can further prevent the electrolyte inside the housing 1 from corroding the electronic components inside the protection plate 6.
In this embodiment, the sealing member 5 is made of a resin material.
In this embodiment, the upper end of the housing 1 is provided with an annular relief portion 17, and the cross section of the annular relief portion 17 is semicircular.
Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (8)

1. A rechargeable lithium battery, characterized in that: comprises a shell, a winding core, an anode terminal, a cathode terminal, a sealing element, a protective plate, an insulating part, a steel cap, a pressure relief valve and an anode connecting sheet, wherein the winding core is arranged inside the shell, the sealing element is arranged in the shell, the sealing element is arranged on the upper part of the winding core, the protective plate is arranged in the sealing element, the anode and the cathode are arranged on the upper end of the winding core, the anode of the winding core is connected with the anode terminal, the cathode of the winding core is connected with the cathode terminal, the anode terminal and the cathode terminal are both connected with the protective plate, the anode terminal is connected with the steel cap through the anode connecting sheet, the insulating part is arranged between the shell and the steel cap, the pressure relief valve is arranged at the lower end of the steel cap, a plurality of air leakage holes are arranged on the steel cap, the lower end of the winding core is provided with a cathode end, and the cathode end is connected with the shell, and nickel plating layers are arranged on the outer surface of the positive terminal and the outer surface of the negative terminal.
2. A rechargeable lithium battery according to claim 1, wherein: the steel cap with be provided with the gasket between the relief valve, the gasket adopts the metal material to make, the gasket is the annular.
3. A rechargeable lithium battery according to claim 1, wherein: roll up core bottom with be provided with the insulating piece between the shell, the insulating piece adopts corrosion-resistant material to make.
4. A rechargeable lithium battery according to claim 1, wherein: the pressure release valve bottom is provided with the nickel piece, the lower extreme of nickel piece with positive pole connection piece is connected, the nickel piece middle part is provided with dodges the hole.
5. A rechargeable lithium battery according to claim 1, wherein: the outer surface of the protection plate is injected with a sealing protection layer, and the sealing protection layer is made of corrosion-resistant materials.
6. A rechargeable lithium battery according to claim 1, wherein: the sealing element is made of resin.
7. A rechargeable lithium battery according to claim 1, wherein: the shell upper end is provided with the annular and lets the position portion, the annular lets the position portion cross section be semi-circular.
8. A rechargeable lithium battery according to claim 2, wherein: the upper portion of the insulating part is provided with an installation cavity, and the steel cap, the gasket and the pressure release valve are sequentially installed in the installation cavity from top to bottom.
CN202121128500.5U 2021-05-24 2021-05-24 Rechargeable lithium battery Active CN215451575U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121128500.5U CN215451575U (en) 2021-05-24 2021-05-24 Rechargeable lithium battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121128500.5U CN215451575U (en) 2021-05-24 2021-05-24 Rechargeable lithium battery

Publications (1)

Publication Number Publication Date
CN215451575U true CN215451575U (en) 2022-01-07

Family

ID=79708216

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121128500.5U Active CN215451575U (en) 2021-05-24 2021-05-24 Rechargeable lithium battery

Country Status (1)

Country Link
CN (1) CN215451575U (en)

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