CN105932322A - Cylindrical battery with external PTC structure - Google Patents
Cylindrical battery with external PTC structure Download PDFInfo
- Publication number
- CN105932322A CN105932322A CN201610459317.0A CN201610459317A CN105932322A CN 105932322 A CN105932322 A CN 105932322A CN 201610459317 A CN201610459317 A CN 201610459317A CN 105932322 A CN105932322 A CN 105932322A
- Authority
- CN
- China
- Prior art keywords
- battery
- positive terminal
- ptc
- cylindrical battery
- negative pole
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
Abstract
The invention discloses a cylindrical battery, which comprises a battery body, a positive terminal and a negative terminal, wherein the positive terminal and the negative terminal are located at two axial end surfaces of the battery body; and a PTC overflow protection component is arranged on the outer wall of the positive terminal or the negative terminal. The external PTC overflow protection component is adopted by the cylindrical battery, so that the over-high heat-collecting capacity in the battery is avoided when the safety of the battery is ensured. Furthermore, when any battery is in a short circuit, the PTC overflow protection component acts, the other parallel batteries are not isolated in general, and the influence on the operating characteristics of a battery pack is small.
Description
Technical field
The present invention relates to a kind of cylindrical battery, a kind of cylindrical battery with external PTC structure.
Background technology
Along with the fast development of electronic technology, high-energy-density, high performance column lithium ion battery obtains
Wider application.This kind of battery not only performance good and also without harmful substance, be green power supply.It each
Individual performance has nearly all reached the best degree that current battery can reach.
In actual applications, in order to improve battery capacity, generally utilize numerous column lithium ion battery strings
It is parallel together and constitutes jumbo battery pack.In high capacity cell, the most a certain cylinder
Battery is short-circuited, and holds producing thermal runaway and causing battery catches fire accident the most very much.
With reference to shown in Fig. 1, in order to eliminate above-mentioned potential safety hazard, generally go here and there in the inside of every cylindrical battery
Being connected with and put PTC overflow protecting element, this PTC overflow protecting element is typically located at the positive terminal and just of battery
Between polar cap cap.When certain root battery is short-circuited fault, PTC overflow protecting element disconnects the most voluntarily and rises
To overcurrent protection, prevent the generation of battery thermal runaway accident.
Certain work calories can be produced during the work of PTC overflow protecting element, and it is arranged in the inside of battery,
The work heat production causing PTC overflow protecting element is focused in battery, it is impossible to distribute in time, to electricity
The performance in pond adversely affects.
Summary of the invention
The present invention seeks to: in order to overcome the problems referred to above, it is provided that a kind of cylindrical battery, outside this battery uses
The PTC overflow protecting element put, while ensureing cell safety, it is to avoid inside battery heat-collecting capacity is excessive.
The technical scheme is that a kind of cylindrical battery, including battery body, lay respectively at this battery
The positive terminal of the axial both ends of the surface of body and negative pole end, the outer wall of described positive terminal or negative pole end is provided with PTC
Overflow protecting element.
The present invention, on the basis of technique scheme, also includes following preferred version:
Described PTC overflow protecting element is arranged on described positive terminal.
This cylindrical battery is lithium ion battery.
Also include the negative pole box hat being enclosed within outside described battery body and be fixed on the positive pole of described battery body one end
End, described negative pole end is formed on described negative pole box hat, and described positive terminal is formed on this positive terminal.
The invention have the advantage that the present invention PTC overflow protecting element is arranged in cylindrical battery outside and
Non-inside, it is ensured that the heat produced during the work of PTC overflow protecting element can distribute in time, and heat is not
Can assemble in a large number in battery and PTC overflow protecting element, improve the security of battery.And battery work
When making, its internal heat produced will not directly conduct to PTC overflow protecting element, makes PTC overcurrent protection unit
Part is in relatively low temperature environment.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, required in embodiment being described below
Accompanying drawing to be used is briefly described, and the accompanying drawing in describing below is only some embodiments of the present invention,
For those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other accompanying drawing.
Fig. 1 is the structural representation of common cylindrical shaped battery；
Fig. 2 is the structural representation of cylindrical battery in the embodiment of the present invention；
Wherein: 1-battery body, 2-positive terminal, 3-negative pole end, 4-PTC overflow protecting element.
Detailed description of the invention
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiments are to use
It is not limited in the explanation present invention limit the scope of the present invention.The implementation condition used in embodiment can basis
The condition of concrete producer does adjustment further, and not marked implementation condition is usually the condition in normal experiment.
Fig. 1 shows a specific embodiment of this cylindrical battery of the present invention, with conventional cylindrical cells
Identical, identical with traditional cylindrical cell, this battery also includes battery body 1, respectively position
In the positive terminal 2 of axial both ends of the surface and the negative pole end 3 of this battery body 1, and this cylindrical battery in this example
For lithium ion battery, i.e. cylindrical lithium ion battery.The most in the present embodiment, this battery also includes set
Negative pole box hat outside described battery body 1 and the positive terminal being fixed on described battery body 1 one end, positive pole
End is also steel material.Described negative pole end 3 is formed on described negative pole box hat, and described positive terminal 2 is formed at
On this positive terminal.
The key improvements of the present embodiment is: be provided with PTC overcurrent protection unit on the outer wall of described positive terminal 2
Part 4.When this cylindrical battery is short-circuited accident, described PTC overflow protecting element 4 can disconnect rapidly,
So that this battery is isolated from circuit in time, prevent cell safety accident from occurring.
PTC overflow protecting element 4 is arranged in the outside of cylindrical battery rather than internal by the present embodiment so that
The heat produced when PTC overflow protecting element 4 works can distribute in time, heat will not at battery and
PTC overflow protecting element is assembled in a large number, improves the security of battery.And time battery operated inside it
The heat produced also will not directly conduct to PTC overflow protecting element 4, makes at PTC overflow protecting element 4
In relatively low temperature environment.
Certainly, PTC overflow protecting element 4 can also be arranged on the negative pole end 3 of battery by we.
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to make people's energy much of that
Solve present disclosure and implement according to this, can not limit the scope of the invention with this.All according to this
Equivalent transformation that the Spirit Essence of bright main technical schemes is done or modification, all should contain the protection in the present invention
Within the scope of.
Claims (4)
1. there is a cylindrical battery for external PTC structure, including battery body (1), lay respectively at
The positive terminal (2) of the axial both ends of the surface of this battery body and negative pole end (3), it is characterised in that: described positive pole
It is provided with PTC overflow protecting element (4) on the outer wall of end (2) or negative pole end (3).
The cylindrical battery with external PTC structure the most according to claim 1, it is characterised in that:
Described PTC overflow protecting element (4) is arranged on described positive terminal (2).
The cylindrical battery with external PTC structure the most according to claim 1, it is characterised in that:
This cylindrical battery is lithium ion battery.
The cylindrical battery with external PTC structure the most according to claim 1, it is characterised in that:
Also include being enclosed within described battery body (1) negative pole box hat outward and being fixed on described battery body (1) one end
Positive terminal, described negative pole end (3) is formed on described negative pole box hat, and described positive terminal (2) is formed at
On this positive terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459317.0A CN105932322A (en) | 2016-06-23 | 2016-06-23 | Cylindrical battery with external PTC structure |
| PCT/CN2017/075551 WO2017219698A1 (en) | 2016-06-23 | 2017-03-03 | Cylindrical battery with external ptc structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459317.0A CN105932322A (en) | 2016-06-23 | 2016-06-23 | Cylindrical battery with external PTC structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105932322A true CN105932322A (en) | 2016-09-07 |
Family
ID=56831608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610459317.0A Pending CN105932322A (en) | 2016-06-23 | 2016-06-23 | Cylindrical battery with external PTC structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105932322A (en) |
| WO (1) | WO2017219698A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219698A1 (en) * | 2016-06-23 | 2017-12-28 | 苏州安靠电源有限公司 | Cylindrical battery with external ptc structure |
| CN109638368A (en) * | 2018-12-20 | 2019-04-16 | 苏州安靠电源有限公司 | Battery system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0269440U (en) * | 1988-11-15 | 1990-05-25 | ||
| CN2899126Y (en) * | 2005-12-16 | 2007-05-09 | 比亚迪股份有限公司 | Cylindrical lithium-ion battery |
| JP2013101794A (en) * | 2011-11-08 | 2013-05-23 | Fdk Tottori Co Ltd | External ptc element unit and cell |
| US20130143077A1 (en) * | 2011-12-02 | 2013-06-06 | Bouziane Yebka | Electrochemical cell package |
| CN206040849U (en) * | 2016-06-23 | 2017-03-22 | 苏州安靠电源有限公司 | Cylinder battery with external PTC structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737797A (en) * | 2011-04-02 | 2012-10-17 | 谢维 | External lithium battery protection PTC device |
| CN102737798A (en) * | 2011-04-02 | 2012-10-17 | 谢维 | Battery protection PTC device |
| CN105932322A (en) * | 2016-06-23 | 2016-09-07 | 苏州安靠电源有限公司 | Cylindrical battery with external PTC structure |
-
2016
- 2016-06-23 CN CN201610459317.0A patent/CN105932322A/en active Pending
-
2017
- 2017-03-03 WO PCT/CN2017/075551 patent/WO2017219698A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0269440U (en) * | 1988-11-15 | 1990-05-25 | ||
| CN2899126Y (en) * | 2005-12-16 | 2007-05-09 | 比亚迪股份有限公司 | Cylindrical lithium-ion battery |
| JP2013101794A (en) * | 2011-11-08 | 2013-05-23 | Fdk Tottori Co Ltd | External ptc element unit and cell |
| US20130143077A1 (en) * | 2011-12-02 | 2013-06-06 | Bouziane Yebka | Electrochemical cell package |
| CN206040849U (en) * | 2016-06-23 | 2017-03-22 | 苏州安靠电源有限公司 | Cylinder battery with external PTC structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219698A1 (en) * | 2016-06-23 | 2017-12-28 | 苏州安靠电源有限公司 | Cylindrical battery with external ptc structure |
| CN109638368A (en) * | 2018-12-20 | 2019-04-16 | 苏州安靠电源有限公司 | Battery system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017219698A1 (en) | 2017-12-28 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |
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| RJ01 | Rejection of invention patent application after publication |