CN102447090B - Assembled battery - Google Patents
Assembled battery Download PDFInfo
- Publication number
- CN102447090B CN102447090B CN201010502366.0A CN201010502366A CN102447090B CN 102447090 B CN102447090 B CN 102447090B CN 201010502366 A CN201010502366 A CN 201010502366A CN 102447090 B CN102447090 B CN 102447090B
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- CN
- China
- Prior art keywords
- cap
- battery
- assembled battery
- electrically connected
- positive electrode
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- 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
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- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides an assembled battery which comprises a winding cell, a housing, a cover cap, an anode cap and a cathode cap. The anode cap is electrically connected with the cover cap. The anode cap comprises an insulating cap and an anode metal cover cap. The external structure of the anode cap is suitable for battery packs with various assembling modes. The cathode cap is electrically connected with the housing by welding. The cathode cap is made of a metal material which is difficult to rust. The electrical connection stability in the using process of the assembled battery can be ensured.
Description
Technical field
The present invention relates to a kind of battery.
Background technology
The application of battery is more and more extensive, and the requirement of modern society to the index such as performance, capacity of battery is also more and more higher.As electric bicycle and electric automobile need jumbo battery pack, such battery pack is by a large amount of serial battery or compose in parallel.
The battery case of existing cylindrical battery is generally negative pole, and battery cap is generally positive pole.Because the contact area that cylindrical battery positive pole block is used for positive pole electrical connection is less, can only adopt welding manner when cylindrical battery being connected into battery pack, this limits the assembling mode of cylindrical battery composition battery pack to a certain extent.By welding be electrically connected the battery pack that is connected into break down time, can easily not detect single battery and change, whole battery pack can only be scrapped, therefore cause huge waste.
The block of existing secondary lithium-ion cylindrical battery is generally all designed with explosion-proof valve device, in case during battery failure, block is produced, but when explosion-proof valve lost efficacy, block a shot after battery failure and still may produce, and cause electrolyte leakage, thus affect other normal battery.
The shell of secondary lithium-ion cylindrical battery is generally the steel of outer nickel plating, in production and use procedure, coating is easily worn, thus cause getting rusty, finally causing the resistance of battery pack and battery positive and negative electrode electrical connections to increase even cannot conducting, reduce the electric current output performance of battery or make battery not export electric energy, have impact on the normal use of battery pack, even some time can cause larger security incident.
Summary of the invention
The object of the invention is to provide one to be convenient to dismounting and replacing in battery pack, has higher-security energy, ensures that battery in use keeps the assembled battery of low internal resistance.
In order to achieve the above object, the invention provides a kind of assembled battery, this assembled battery comprises winding battery core, shell, block, and this assembled battery also comprises positive electrode cap, and positive electrode cap is positioned at block outside and is electrically connected with block.Positive electrode cap comprises insulator cap and the outer cap of cathode metal.
Assembled battery provided by the invention, positive electrode cap is electrically connected by welding with block, and the cathode metal of positive electrode cap is outer arranges insulator cap to keep the insulation of positive electrode cap and shell between cap and battery case.
In order to achieve the above object, the invention provides a kind of assembled battery, this assembled battery also comprises negative pole cap, and negative pole cap is electrically connected with battery case.
The outer whole outer surface of cap of cathode metal of assembled battery provided by the invention may be used to outside to carry out being electrically connected to be assembled into battery pack, so can adopt for the battery pack of various electric connection mode, such as, by being inserted in the conductive hole of battery frame, the periphery of the outer cap of cathode metal or bottom surface are electrically connected with conductive hole and are assembled into battery pack, easily dismantle when the battery pack of this structure breaks down, and can detect single battery and change.
Assembled battery provided by the invention, negative pole cap is electrically connected by welding with battery case, connected mode is reliably fastening, electrical connections does not get rusty by shell and affects, negative pole cap can adopt the copper of outer nickel plating, to guarantee to be electrically connected reliably with battery pack with battery, improve the security performance of battery pack.
Assembled battery provided by the invention, negative pole cap is electrically connected by welding with battery case, and electrical connections does not get rusty by shell and affects, and can ensure that battery in use keeps low internal resistance, thus ensure that normal use and the security of battery.
Accompanying drawing explanation
Fig. 1 is the explosive view of assembled battery provided by the invention.
Fig. 2 is the positive electrode cap structural representation of assembled battery of the present invention.
Fig. 3 be the insulator cap of assembled battery of the present invention partly cut open schematic diagram.
Fig. 4 is the negative pole cap schematic diagram of assembled battery of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1 and Figure 2, assembled battery 1 comprises battery 2, positive electrode cap 3 and negative pole cap 4.Positive electrode cap 3 is made up of insulator cap 5 and the outer cap 6 of cathode metal, and negative pole cap 4 is metallic conductor.
The outer cap 6 of cathode metal is electrically connected by spot welding with block 7, and the outer cap 6 of cathode metal utilizes insulator cap 5 and shell 8 to insulate, and insulator cap 5 has step 9, and step 9 is for guaranteeing that the outer cap 6 of cathode metal insulate with shell 8.The outer cap 6 of cathode metal is for being assembled into battery pack during by assembled battery 1, battery 1 is electrically connected with the positive pole of battery pack.The outer layer area of the outer cap 6 of cathode metal is large, is applicable to the assembling of the large-capacity battery pack of various assembling mode.Such as, be inserted in the conductive hole of battery frame by outer for cathode metal cap 6, periphery or the bottom surface of the outer cap 6 of cathode metal carry out being electrically connected being assembled into battery pack with conductive hole.Easily dismantle when the battery pack of this structure breaks down, and can detect single battery and change.
Wherein the through hole 10 of the outer cap 6 of cathode metal is for exhaust.
As shown in Figure 3, there are the card rank 11 be connected in shell 8 slot rolling the inner side of insulator cap 5, and these card rank 11 are for the stable assembling of positive electrode cap 3 with battery 2.When the explosion-proof valve of battery 2 lost efficacy, battery 2 broke down, then block 7 can be subject to the resistance on the card rank 11 of insulator cap 5 and can not produce, thus ensure that stability and the security of battery pack.
The outer cap 6 of cathode metal can become by the copper of outer nickel plating.Insulator cap 5 can adopt the PTFE of high temperature high voltage resistant (polytetrafluoroethylene (PTFE)) material and other suitable macromolecular material.
Be illustrated in figure 4 the negative pole cap 4 of assembled battery 1, negative pole cap 4 is electrically connected by spot welding with battery case 8.When battery case 8 gets rusty, negative pole cap 4 and the spot welding electric connection mode of shell 8 can ensure to be electrically connected to be stablized, and prevents electric connection resistance from increasing, thus ensure that security performance and the serviceability of battery pack.
Negative pole cap 4 can become by the copper of outer nickel plating.
The above is only embodiments of the invention, and unrestricted practical range of the present invention, all equivalence changes of doing according to structure, feature and the principle described in the present patent application the scope of the claims or modify, within the protection domain that all should be included in patent application of the present invention.
Claims (3)
1. an assembled battery, comprises winding battery core, shell, blocks a shot, it is characterized in that: described assembled battery also comprises positive electrode cap, positive electrode cap is positioned at block outside and is electrically connected with described block; Described positive electrode cap comprises insulator cap and the outer cap of cathode metal; There are the card rank be connected in shell slot rolling the inner side of described insulator cap; Described insulator cap is arranged the step by outer for cathode metal cap and casing insulation; The outer cap copper of outer nickel plating of described cathode metal becomes; Assembled battery also comprises negative pole cap, and negative pole cap is electrically connected with described shell.
2. assembled battery according to claim 1, described positive electrode cap and described casing insulation.
3. assembled battery according to claim 1, described negative pole cap is electric conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010502366.0A CN102447090B (en) | 2010-10-01 | 2010-10-01 | Assembled battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010502366.0A CN102447090B (en) | 2010-10-01 | 2010-10-01 | Assembled battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102447090A CN102447090A (en) | 2012-05-09 |
| CN102447090B true CN102447090B (en) | 2015-03-25 |
Family
ID=46009367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010502366.0A Active CN102447090B (en) | 2010-10-01 | 2010-10-01 | Assembled battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102447090B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882576A (en) * | 2015-06-09 | 2015-09-02 | 廖婕 | Button type combined battery |
| CN104900840B (en) * | 2015-06-12 | 2017-03-08 | 福建南平南孚电池有限公司 | A kind of sealing ring for secondary battery negative pole seal body |
| CN110931697A (en) * | 2019-12-12 | 2020-03-27 | 惠州亿纬锂能股份有限公司 | Battery combination structure and combined battery pack |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841058A (en) * | 2010-05-12 | 2010-09-22 | 深圳市倍特力电池有限公司 | Cylindrical anti-explosive battery |
| CN201812872U (en) * | 2010-10-01 | 2011-04-27 | 微宏动力系统（湖州）有限公司 | Assembled battery |
-
2010
- 2010-10-01 CN CN201010502366.0A patent/CN102447090B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841058A (en) * | 2010-05-12 | 2010-09-22 | 深圳市倍特力电池有限公司 | Cylindrical anti-explosive battery |
| CN201812872U (en) * | 2010-10-01 | 2011-04-27 | 微宏动力系统（湖州）有限公司 | Assembled battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102447090A (en) | 2012-05-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 313000 Huzhou economic and Technological Development Zone, Zhejiang, Hung Fung Road, No. 2198 Patentee after: Microvast Power Systems (Huzhou) Co., Ltd. Address before: 313000 Zhejiang Province, Huzhou City Road No. 1555 sunny Industrial Science and Technology Park 1 Patentee before: Microvast Power Systems (Huzhou) Co., Ltd. |