CN106229442A - Explosion-proof lithium battery - Google Patents
Explosion-proof lithium battery Download PDFInfo
- Publication number
- CN106229442A CN106229442A CN201610729029.2A CN201610729029A CN106229442A CN 106229442 A CN106229442 A CN 106229442A CN 201610729029 A CN201610729029 A CN 201610729029A CN 106229442 A CN106229442 A CN 106229442A
- Authority
- CN
- China
- Prior art keywords
- shell
- inner core
- described inner
- film
- lithium battery
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
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- 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
- H01M10/058—Construction or manufacture
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Primary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention provides a kind of explosion-proof lithium battery, including columned shell, and the inner core being located in shell；Described inner core includes that described inner core film back and forth folds and forms described inner core by cathode film, barrier film, the inner core film of negative electrode film laminating；Described inner core is packaged in a cylindrical metal inner shell coaxial with described shell, the outside of described inner shell be equally spaced that extend in the axial direction, be parallel to the sheet metal of described inner core film fold plane；Described inner shell can rotate freely around own axes, and the cathode film of described inner core is electrically articulated in the positive terminal of described shell one end, and negative electrode film is electrically articulated in the negative terminal of the described shell other end.This battery is after being punctured by metal pointed cone, it is difficult to makes both positive and negative polarity film layer penetrate, thus is not susceptible to peril, has higher safety.
Description
Technical field
The present invention relates to field of batteries, especially, relate to a kind of cylinder shape aneroid battery.
Background technology
Lithium battery is due to excellent performance, the most universal in each field；But, owing to lithium ion chemism is relatively strong, lithium
The danger of ion is the highest, especially lithium battery can not be carried out physical damage, as used metal pointed cone utensil to enter lithium battery
When row punctures, the positive and negative film layer the most easily making lithium battery interior is short-circuit because being run through by metal, causes lithium battery fast heating, combustion
Burn, then explode time serious.Especially, for current cylindricality lithium battery, its internal positive and negative film layer is all around battery axis
Rolling into one, in the case, if there being metal pointed cone to puncture into lithium battery, then positive and negative film layer many places will be made to be short-circuited, therefore
And easily have an accident.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of explosion-proof lithium battery, this battery is by metal pointed cone
After puncture, it is difficult to make both positive and negative polarity film layer penetrate, thus be not susceptible to peril, there is higher safety.
The technical solution adopted for the present invention to solve the technical problems is: this explosion-proof lithium battery includes columned shell,
And the inner core being located in shell；Described inner core includes by cathode film, barrier film, the inner core film of negative electrode film laminating, described interior
Core film back and forth folds and forms described inner core；Described inner core is packaged in a cylindrical metal inner shell coaxial with described shell,
The outside of described inner shell be equally spaced that extend in the axial direction, be parallel to the sheet metal of described inner core film fold plane；Described
Inner shell can rotate freely around own axes, and the cathode film of described inner core is electrically articulated in the positive terminal of described shell one end, negative
Pole film is electrically articulated in the negative terminal of the described shell other end.
As preferably, the common profile of all described sheet metals constitutes a gabarit circle, and described gabarit circle is with described
Gap is left, during so that described inner shell rotates, without friction between sheet metal and described shell between the inwall of shell.
As preferably, described sheet metal is one-body molded with described inner shell, and along being parallel to the fold plane of described inner core film
Direction and be orthogonal to battery axis direction magnetization；So that extraneous taper ironware near time, described inner shell under Magnetic force tracting,
The axis being automatically rotated to described sheet metal and taper ironware connects subparallel position.
As preferably, described inner housing inner has one and is orthogonal to battery axis and is parallel to the folding of described inner core film
The bar magnet in face, the two ends of described bar magnet constitute support to described inner shell；Thus, described bar magnet not only makes battery under hammer action
Be difficult to deformation, and, equally make extraneous taper ironware near time, described inner shell, under Magnetic force tracting, is automatically rotated to institute
The axis stating sheet metal and taper ironware connects subparallel position.
The beneficial effects of the present invention is: this explosion-proof lithium battery is fashionable by metal tip bore spine, and first metal pointed cone stings
Enter between the sheet metal of described inner housing surface, then, under the effect of contraction of sheet metal, described inner shell will rotate around own axes, directly
To each sheet metal and metal pointed cone to thrust direction parallel, even if it is parallel with the fold plane of described inner core film also to thrust direction；This
Time, even if metal pointed cone penetrates inner shell and enters inner core, also by penetrating between the fold plane of inner core film, it is allowed to be difficult to run through inner core film
Cathode film and negative electrode film, therefore, it is difficult to the phenomenon that is short-circuited, thus significantly reduce potential safety hazard.
Accompanying drawing explanation
Fig. 1 is the cross sectional representation of this explosion-proof lithium battery embodiment one.
Fig. 2 is the cross sectional representation of this explosion-proof lithium battery embodiment two.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings:
Embodiment one:
In the embodiment one shown in Fig. 1, this explosion-proof lithium battery includes columned shell 1, and is located at the inner core in shell 1
2；Described inner core 2 includes that described inner core film back and forth folds and forms institute by cathode film, barrier film, the inner core film of negative electrode film laminating
State inner core 2；Described inner core 2 is packaged in a cylindrical metal inner shell 3 coaxial with described shell 1, the outside of described inner shell 3
Be equally spaced that extend in the axial direction, be parallel to the sheet metal 31 of described inner core film fold plane；Described inner shell 3 can be around self
Axis rotates freely, and the cathode film of described inner core 2 is electrically articulated in the positive terminal (not shown) of described shell one end, negative electrode film
Electrically it is articulated in the negative terminal (not shown) of the described shell other end.
Above-mentioned explosion-proof lithium battery, the common profile of all described sheet metals 31 constitutes a gabarit circle (outside actually
The overwhelming majority of profile is circular arc, profile avris sheet metal 31 ' place is straight line), and described gabarit circle with described outside
Gap is left, during so that described inner shell 3 rotates, without friction between sheet metal 31 and described shell 1 between the inwall of shell 1.
Above-mentioned explosion-proof lithium battery, described sheet metal 31 is one-body molded with described inner shell 3, and along being parallel to described inner core
The fold plane direction of film and be orthogonal to the direction magnetization of battery axis, anticipates the most as indicated by the dashed arrow in fig. 1.According to the program,
Extraneous taper ironware near time, described inner shell 3, under Magnetic force tracting, will be automatically rotated to described sheet metal 31 and taper ironware
Axis connect subparallel position so that taper ironware be easier between adjacent two panels sheet metal 31, be parallel to described in
The direction of the fold plane of core film enters inner core 2.
Above-mentioned explosion-proof lithium battery is fashionable by metal tip bore spine, and first metal pointed cone thrusts the gold on described inner shell 3 surface
Belong between sheet 31, then, under the effect of contraction of sheet metal 31, described inner shell 3 will rotate around own axes, until each sheet metal 31
With metal pointed cone to thrust direction parallel, even if it is parallel with the fold plane of described inner core film also to thrust direction；Now, even if metal
Pointed cone penetrates inner shell 3 and enters inner core 2, also by penetrating between the fold plane of inner core film, is allowed to the cathode film being difficult to run through inner core film
With negative electrode film, therefore, it is difficult to the phenomenon that is short-circuited, thus significantly reduce potential safety hazard.
Embodiment two:
In the embodiment two shown in Fig. 2, unlike embodiment one, described inner shell 3 inside has one and is orthogonal to battery
Axis and be parallel to the bar magnet 4 of fold plane of described inner core film, described inner shell 3 is constituted and supports by the two ends of described bar magnet 4；By
This, described bar magnet 4 not only makes battery be difficult to deformation under hammer action, and, equally make extraneous taper ironware near time,
Making described inner shell 3 under Magnetic force tracting, the axis being automatically rotated to described sheet metal 31 and taper ironware connects subparallel position.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any amendment of being made, equivalent, should be included within the scope of the present invention.
Claims (4)
1. an explosion-proof lithium battery, including columned shell (1), and the inner core (2) being located in shell, described inner core (2)
Including by cathode film, barrier film, the inner core film of negative electrode film laminating；It is characterized in that: described inner core film back and forth folds and forms institute
State inner core；Described inner core (2) is packaged in a cylindrical metal inner shell (3) coaxial with described shell (1), described inner shell
(3) outside be equally spaced that extend in the axial direction, be parallel to the sheet metal (31) of described inner core film fold plane；In described
Shell (3) can rotate freely around own axes, and the cathode film of described inner core (2) is electrically articulated in the positive terminal of described shell one end
Son, negative electrode film is electrically articulated in the negative terminal of the described shell other end.
Explosion-proof lithium battery the most according to claim 1, it is characterised in that: the common profile of all described sheet metals (31)
Constitute a gabarit circle, and leave gap between described gabarit circle and the inwall of described shell (1), so that described inner shell (3) rotation
When turning, without friction between sheet metal (31) and described shell (1).
Explosion-proof lithium battery the most according to claim 1, it is characterised in that: described sheet metal (31) and described inner shell (3)
Body formed, and along being parallel to the fold plane direction of described inner core film and being orthogonal to the direction magnetization of battery axis.
Explosion-proof lithium battery the most according to claim 1, it is characterised in that: described inner shell (3) inside has one and is orthogonal to
Battery axis and be parallel to the bar magnet (4) of fold plane of described inner core film, the two ends of described bar magnet (4) are to described inner shell (3) structure
Become to support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729029.2A CN106229442B (en) | 2016-08-26 | 2016-08-26 | explosion-proof lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729029.2A CN106229442B (en) | 2016-08-26 | 2016-08-26 | explosion-proof lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106229442A true CN106229442A (en) | 2016-12-14 |
| CN106229442B CN106229442B (en) | 2019-01-08 |
Family
ID=57555241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610729029.2A Active CN106229442B (en) | 2016-08-26 | 2016-08-26 | explosion-proof lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106229442B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2904308Y (en) * | 2006-05-24 | 2007-05-23 | 殷世抒 | Safety explosion-proof hard case lithium ion secondary battery |
| CN201438473U (en) * | 2009-03-31 | 2010-04-14 | 深圳市同力高科技有限公司 | Battery core shell |
| CN203521489U (en) * | 2013-11-11 | 2014-04-02 | 湖北允升科技工业园有限公司 | Aluminum-cased lithium ion battery |
| US20150118531A1 (en) * | 2013-10-31 | 2015-04-30 | Smk Corporation | Method for cold-forging thin-walled portion and explosion-proof valve |
-
2016
- 2016-08-26 CN CN201610729029.2A patent/CN106229442B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2904308Y (en) * | 2006-05-24 | 2007-05-23 | 殷世抒 | Safety explosion-proof hard case lithium ion secondary battery |
| CN201438473U (en) * | 2009-03-31 | 2010-04-14 | 深圳市同力高科技有限公司 | Battery core shell |
| US20150118531A1 (en) * | 2013-10-31 | 2015-04-30 | Smk Corporation | Method for cold-forging thin-walled portion and explosion-proof valve |
| CN203521489U (en) * | 2013-11-11 | 2014-04-02 | 湖北允升科技工业园有限公司 | Aluminum-cased lithium ion battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106229442B (en) | 2019-01-08 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181116 Address after: 321201 No. 7 Weiwu East Road, Tongqin Industrial Zone, Jinhua City, Zhejiang Province Applicant after: Wuyi Shenglong Metal Product Co., Ltd. Address before: 215200 Nan Yang village residents' committee, Ping Wang Town, Wujiang District, Suzhou, Jiangsu Applicant before: Ma Genchang |
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| GR01 | Patent grant |