CN206040849U - Cylinder battery with external PTC structure - Google Patents
Cylinder battery with external PTC structure Download PDFInfo
- Publication number
- CN206040849U CN206040849U CN201620624861.1U CN201620624861U CN206040849U CN 206040849 U CN206040849 U CN 206040849U CN 201620624861 U CN201620624861 U CN 201620624861U CN 206040849 U CN206040849 U CN 206040849U
- Authority
- CN
- China
- Prior art keywords
- battery
- positive terminal
- ptc
- negative pole
- utility
- 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
Links
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a cylinder battery who has external PTC structure, it includes cell ontology, is located positive terminal and the negative pole end of this cell ontology axial both ends face respectively, be provided with PTC overcurrent protection element on the outer wall of positive terminal or negative pole end. The utility model discloses this kind of cylinder battery adopts external PTC overcurrent protection element, when guaranteeing battery safety, avoids the inside thermal -arrest volume of battery too big, and any one battery the short circuit appears and causes the action of PTC component in addition, can not cause generally that other parallelly connected batteries are kept apart, and is little to the operating characteristic influence of group battery.
Description
Technical field
This utility model is related to a kind of cylindrical battery, especially a kind of cylindrical battery with external PTC structures.
Background technology
With the fast development of electronic technology, high-energy-density, high performance column lithium ion battery obtain more extensive
Application.Not only performance is good but also does not contain harmful substance for this kind of battery, is green power supply.Its each performance nearly all reaches
The best degree that current battery can reach.
In actual applications, in order to improve battery capacity, generally utilize numerous column lithium ion battery connection in series-parallel groups
It is combined and constitutes jumbo set of cells.In high capacity cell, once a certain cylindrical battery is short-circuited, just very
Hold and produce thermal runaway and cause battery catches fire accident.
With reference to shown in Fig. 1, in order to eliminate above-mentioned potential safety hazard, the generally inside series winding in every cylindrical battery is arranged
PTC overflow protecting elements, the PTC overflow protecting elements are typically located between the positive terminal of battery and positive pole block.When certain root
Battery be short-circuited failure when, PTC overflow protecting elements just voluntarily disconnect and play overcurrent protection, prevent battery thermal runaway
The generation of accident.
PTC overflow protecting elements can produce certain work calorieses when working, and which is arranged in the inside of battery, causes
The work heat production of PTC overflow protecting elements is focused in battery, it is impossible to distributed in time, and the performance of battery is caused negatively
Affect.
Utility model content
This utility model purpose is：In order to overcome the problems referred to above, there is provided a kind of cylindrical battery, the battery is using external
PTC overflow protecting elements, while cell safety is ensured, it is to avoid inside battery heat-collecting capacity is excessive.
The technical solution of the utility model is：A kind of cylindrical battery, including battery body, respectively positioned at the battery body
PTC overflow protecting elements are provided with the outer wall of the positive terminal and negative pole end of axial both ends of the surface, the positive terminal or negative pole end.
This utility model on the basis of above-mentioned technical proposal, also including following preferred version：
The PTC overflow protecting elements are arranged on the positive terminal.
The cylindrical battery is lithium ion battery.
Also include the negative pole box hat being enclosed within outside the battery body and the positive terminal for being fixed on described battery body one end, institute
State negative pole end to be formed on the negative pole box hat, the positive terminal is formed on the positive terminal.
The utility model has the advantages that：PTC overflow protecting elements are arranged in this utility model the outside of cylindrical battery
Rather than it is internal, it is ensured that the heat that PTC overflow protecting elements are produced when working can be distributed in time, heat will not in battery and
Assemble in PTC overflow protecting elements in a large number, improve the safety of battery.And heat that its inside produces when battery operated is not
Directly can conduct to PTC overflow protecting elements, PTC overflow protecting elements is in relatively low temperature environment.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to wanting needed for embodiment description
The accompanying drawing for using is briefly described, and drawings in the following description are only some embodiments of the present utility model, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, can be attached to obtain others according to these accompanying drawings
Figure.
Structural representations of the Fig. 1 for common cylindrical shaped battery；
Fig. 2 is the structural representation of cylindrical battery in this utility model embodiment；
Wherein：1- battery bodies, 2- positive terminals, 3- negative pole ends, 4-PTC overflow protecting elements.
Specific embodiment
Such scheme is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
This utility model and be not limited to limit scope of the present utility model.The implementation condition adopted in embodiment can be according to concrete producer
Condition do and further adjust, not marked implementation condition is usually the condition in normal experiment.
Fig. 1 shows a specific embodiment of this cylindrical battery of this utility model, with conventional cylindrical cells phase
It is same, it is that the battery also includes battery body 1, is located at the battery body 1 respectively with traditional cylindrical cell identical
Axial both ends of the surface positive terminal 2 and negative pole end 3, and the cylindrical battery is lithium ion battery in this example, i.e., cylindrical
Lithium ion battery.Specifically in the present embodiment, the battery also includes the negative pole box hat being enclosed within outside the battery body 1 and is fixed on
The positive terminal of 1 one end of the battery body, positive terminal are also steel material.The negative pole end 3 is formed on the negative pole box hat,
The positive terminal 2 is formed on the positive terminal.
The key improvements of the present embodiment are：PTC overflow protecting elements 4 are provided with the outer wall of the positive terminal 2.When this
Cylindrical battery be short-circuited accident when, the PTC overflow protecting elements 4 can disconnect rapidly, so that the battery is from circuit
Isolate in time, prevent cell safety accident from occurring.
PTC overflow protecting elements 4 are arranged in the present embodiment the outside rather than inside of cylindrical battery so that PTC excessively streams
The heat that protection element 4 is produced when working can be distributed in time, and heat will not be big in battery and PTC overflow protecting elements
Amount aggregation, improves the safety of battery.And its internal heat for producing also directly will not be protected to PTC excessively streams when battery operated
Protection element 4 conducts, and PTC overflow protecting elements 4 is in relatively low temperature environment.
Certainly, we can also be arranged on PTC overflow protecting elements 4 on the negative pole end 3 of battery.
Above-described embodiment only for illustrating technology design of the present utility model and feature, its object is to allow people will appreciate that
Content of the present utility model is simultaneously implemented according to this, can not limit protection domain of the present utility model with this.It is all new according to this practicality
Equivalent transformation or modification that the spirit of type main technical schemes is done, should all cover protection domain of the present utility model it
It is interior.
Claims (4)
1. a kind of cylindrical battery with external PTC structures, including battery body (1), is located at the battery body axial direction respectively
The positive terminal (2) and negative pole end (3) of both ends of the surface, it is characterised in that：Arrange on the outer wall of positive terminal (2) or negative pole end (3)
There are PTC overflow protecting elements (4).
2. the cylindrical battery with external PTC structures according to claim 1, it is characterised in that：The PTC excessively streams are protected
Protection element (4) is arranged on the positive terminal (2).
3. the cylindrical battery with external PTC structures according to claim 1, it is characterised in that：The cylindrical battery
For lithium ion battery.
4. the cylindrical battery with external PTC structures according to claim 1, it is characterised in that：Also include being enclosed within institute
State battery body (1) negative pole box hat outward and be fixed on the positive terminal of the battery body (1) one end, negative pole end (3) shape
On negative pole box hat described in Cheng Yu, positive terminal (2) are formed on the positive terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620624861.1U CN206040849U (en) | 2016-06-23 | 2016-06-23 | Cylinder battery with external PTC structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620624861.1U CN206040849U (en) | 2016-06-23 | 2016-06-23 | Cylinder battery with external PTC structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206040849U true CN206040849U (en) | 2017-03-22 |
Family
ID=58312955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620624861.1U Expired - Fee Related CN206040849U (en) | 2016-06-23 | 2016-06-23 | Cylinder battery with external PTC structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206040849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932322A (en) * | 2016-06-23 | 2016-09-07 | 苏州安靠电源有限公司 | Cylindrical battery with external PTC structure |
| CN108461757A (en) * | 2018-03-13 | 2018-08-28 | 苏州安靠电源有限公司 | Cylindrical battery and its electrode current collecting component and preparation method |
-
2016
- 2016-06-23 CN CN201620624861.1U patent/CN206040849U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932322A (en) * | 2016-06-23 | 2016-09-07 | 苏州安靠电源有限公司 | Cylindrical battery with external PTC structure |
| WO2017219698A1 (en) * | 2016-06-23 | 2017-12-28 | 苏州安靠电源有限公司 | Cylindrical battery with external ptc structure |
| CN108461757A (en) * | 2018-03-13 | 2018-08-28 | 苏州安靠电源有限公司 | Cylindrical battery and its electrode current collecting component and preparation method |
| CN108461757B (en) * | 2018-03-13 | 2024-02-13 | 苏州安靠电源有限公司 | Cylindrical battery and electrode current collecting assembly and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103730684B (en) | A kind of High-safety all-solid-state lithium ion battery and production method thereof | |
| WO2017180264A3 (en) | Separator for use in electrochemical cells and method of fabrication thereof | |
| CN103311539A (en) | High-voltage high-energy-density lithium ion battery | |
| JP2016177977A5 (en) | Electrode, non-aqueous electrolyte battery, battery pack and car | |
| WO2022179303A1 (en) | Energy storage system based on conductivity-controllable polymer current collector and preparation process for energy storage system | |
| CN206040849U (en) | Cylinder battery with external PTC structure | |
| CN105024047A (en) | Lithium ion secondary battery, composite positive electrode active material thereof and preparation method | |
| CN204793086U (en) | Large capacity lithium ion battery | |
| JP2019537210A5 (en) | ||
| CN105513827B (en) | A kind of (LMO NCM AC)/(LTO AC) hybrid battery capacitance electrode material and electrode slice | |
| CN204088432U (en) | Li-ion batteries piles | |
| CN206610860U (en) | A kind of lithium ion battery insures connection sheet | |
| CN105932322A (en) | Cylindrical battery with external PTC structure | |
| CN207009545U (en) | A kind of dynamic lithium battery overcharges cover sheet | |
| CN206040787U (en) | Big capacity batteries group security protection device | |
| CN105405668A (en) | (LMO-NCM-AC)/(LTO-AC) hybrid battery capacitor and preparation method thereof | |
| CN205646009U (en) | Battery anchor clamps and big capacity batteries group with accuse temperature protect function | |
| CN107706376A (en) | Coat hud typed composite positive pole, its preparation method and the purposes in lithium ion battery of thermistor material | |
| CN205452455U (en) | Safe high power capacity cylinder battery | |
| CN103985860A (en) | Cylindrical lithium ion battery and manufacturing method thereof | |
| CN104617262B (en) | Multivariate material composite positive electrode and lithium ion battery | |
| CN105914330A (en) | Safety protection device of high-capacity battery pack | |
| CN102299297A (en) | Cathode of lithium ion battery and preparation method thereof | |
| CN213483809U (en) | High-safety button type lithium ion battery | |
| CN205004411U (en) | Lithium cell group with fill discharge protection module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20210623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |