CN107665970A - Over-charging of battery safety guard and lithium ion battery - Google Patents
Over-charging of battery safety guard and lithium ion battery Download PDFInfo
- Publication number
- CN107665970A CN107665970A CN201711144092.0A CN201711144092A CN107665970A CN 107665970 A CN107665970 A CN 107665970A CN 201711144092 A CN201711144092 A CN 201711144092A CN 107665970 A CN107665970 A CN 107665970A
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- Prior art keywords
- battery
- conducting strip
- charging
- over
- safety
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Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 12
- 238000009413 insulation Methods 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 31
- 239000000463 material Substances 0.000 description 4
- 230000009172 bursting Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 238000009783 overcharge test Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/578—Devices or arrangements for the interruption of current in response to pressure
-
- 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
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to battery technology field, more particularly, to a kind of over-charging of battery safety guard and lithium ion battery.The over-charging of battery safety guard, including the first conducting strip, the second conducting strip and safety upset component；Safety upset component includes Safety shell；The inner chamber of Safety shell is connected with inside battery, for when the gas pressure intensity of inside battery changes, the gas pressure intensity in the inner chamber of Safety shell can also to change；Safety shell includes rotating sheet；Rotating sheet can be overturn in the gas pressure intensity increase in the inner chamber of Safety shell, so that the first conducting strip and the second conducting strip are electrically connected to form short circuit.The lithium ion battery, including described over-charging of battery safety guard.The present invention has preferable security performance.
Description
Technical field
The present invention relates to battery technology field, more particularly, to a kind of over-charging of battery safety guard and lithium-ion electric
Pond.
Background technology
Lithium ion battery is due to high-energy, high power capacity and high power, having been used for hybrid vehicle and electronic vapour
Car.Because inside battery positive and negative electrode material has very strong chemical reactivity, there are the unexpected situations such as overcharge or short circuit
When, the reaction of positive and negative pole material and electrolyte produces substantial amounts of high-temperature gas, if battery does not possess reliable protection device,
Expansion may bring battery catches fire or blast to gas rapidly.Therefore, for the electrokinetic cell for being used as automobile power source, it is pacified
Full property is the most important thing, and it is exactly one of three most extreme safety tests of electrokinetic cell to overcharge test.Current battery protection side
In formula, risen using the pressure of inside battery when overcharging and bursting diaphragm is cut off electric current, realize the safeguard protection of battery, but its
Effect has certain limitation, it is possible to the situation that can not cut off electric current occurs.
The content of the invention
It is an object of the invention to provide a kind of over-charging of battery safety guard and lithium ion battery, to solve existing skill
Bursting diaphragm present in art cuts off the limited technical problem of the protective effect of the protected mode of electric current.
The invention provides a kind of over-charging of battery safety guard, including the first conducting strip, the second conducting strip and safety
Overturn component；The safety upset component includes Safety shell；The inner chamber of the Safety shell is connected with inside battery, is used for
When the gas pressure intensity of inside battery changes, the gas pressure intensity in the inner chamber of the Safety shell can also change；Institute
Stating Safety shell includes rotating sheet；The rotating sheet can be when the gas pressure intensity in the inner chamber of the Safety shell increases
Upset, so that first conducting strip and the second conducting strip are electrically connected to form short circuit.
Further, the rotating sheet includes the upset main body of the inner chamber convex to the Safety shell.
Further, the length bearing of trend in the section of the upset main body is in arc line shaped.
Further, the rotating sheet also includes the bulge-structure positioned at the outside of the upset main body；The raised knot
Structure electrically connects with first conducting strip；The bulge-structure and the second conducting strip gap setting；The bulge-structure energy
It is enough to be in contact when the upset main body is changed into evagination from convex with the second conducting strip, so that first conducting strip is led with second
Electric piece is electrically connected to form short circuit.
Further, the top surface of the bulge-structure is curved surface or plane.
Further, the bulge-structure and the rotating sheet are integral type structure or split-type structural；The raised knot
Structure is solid or hollow body.
Further, the top surface of the bulge-structure is less than the plane where the periphery of the rotating sheet.
Further, the Safety shell also includes gusset part, the periphery of the rotating sheet and the side round part split-phase
Connection.
Further, connected between the gusset part and second conducting strip by insulation spacer.
Present invention also offers a kind of lithium ion battery, including described over-charging of battery safety guard.
Compared with prior art, beneficial effects of the present invention are：
Over-charging of battery safety guard provided by the invention, including the first conducting strip, the second conducting strip and safety upset
Component；Safety upset component includes Safety shell；The inner chamber of Safety shell is connected with inside battery, in inside battery
When gas pressure intensity changes, the gas pressure intensity in the inner chamber of Safety shell can also change；Safety shell includes rotating sheet；
Rotating sheet can be overturn in the gas pressure intensity increase in the inner chamber of Safety shell, so that the first conducting strip and the second conduction
Piece is electrically connected to form short circuit.Overcharged or short circuit phenomenon by using in battery, when gases are heated, they expand leads for inside battery
Send a telegraph pond air pressure inside drastically to raise, so as to cause the also corresponding increase therewith of the gas pressure intensity in the inner chamber of Safety shell, when complete
When gas pressure intensity in the inner chamber of housing is increased to a certain extent, force rotating sheet to deform upon, make the first conducting strip and second
Conducting strip electrically connects, and the short circuit for forming outside batteries discharges battery core energy, avoids causing security incident, so as to be advantageous to carry
The security performance of high battery, it can also overcome the shortcomings of that electrokinetic cell top cover security of the prior art is not satisfactory.
The lithium ion battery that the present invention also provides, including described over-charging of battery safety guard.Based on above-mentioned analysis
Understand, the lithium ion battery has preferable security performance.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the over-charging of battery safety guard that the embodiment of the present invention one provides；
Fig. 2 is the structural representation at another visual angle for the over-charging of battery safety guard that the embodiment of the present invention one provides；
Fig. 3 is the structural representation at the another visual angle for the over-charging of battery safety guard that the embodiment of the present invention one provides；
Fig. 4 is the sectional view for the over-charging of battery safety guard that the embodiment of the present invention one provides.
In figure：
The conducting strips of 101- first；The conducting strips of 102- second；103- Safety shells；
104- overturns main body；105- gussets part；106- insulation spacers；
107- bulge-structures；108- air admission holes.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Embodiment one
Referring to shown in Fig. 1 to Fig. 4, the embodiments of the invention provide a kind of over-charging of battery safety guard, including first
Conducting strip 101, the second conducting strip 102 and safety upset component；Safety upset component includes Safety shell 103；Safety shell 103
Inner chamber be connected with inside battery, for when the gas pressure intensity of inside battery changes, in the inner chamber of Safety shell 103
Gas pressure intensity can also change, namely the gas pressure intensity in the content cavity of Safety shell 103 is with the gas pressure of inside battery
Strong one changes；Safety shell 103 includes rotating sheet；Rotating sheet can increase in the gas pressure intensity in the inner chamber of Safety shell 103
Overturn when big, so that the first conducting strip 101 and the second conducting strip 102 are electrically connected to form short circuit, that is to say, that work as containment
When gas pressure intensity in the inner chamber of body 103 increases to setting value, rotating sheet can be in the work of the gas of the inner chamber of Safety shell 103
Deformed upon under, so that the first conducting strip 101 electrically connects with the second conducting strip 102, form the short-circuit feelings of outside batteries
Shape, to discharge battery core energy.Air admission hole 108 on Safety shell 103 is connected with inside battery.
In the optional scheme of the embodiment, when the first conducting strip 101 electrically connects with the positive pole of battery, the second conducting strip
102 electrically connect with the negative pole or external ground line of battery；And when negative pole or external ground the line electricity of the first conducting strip 101 and battery
Connection, the second conducting strip 102 electrically connect with the positive pole of battery.
The embodiment provide over-charging of battery safety guard, by using battery overcharge or short circuit show
As, inside battery, when gases are heated, they expand causes inside battery air pressure drastically to raise, so as to cause in the inner chamber of Safety shell 103
Gas pressure intensity also corresponding increase therewith, when the gas pressure intensity increase in the inner chamber of full housing to a certain extent when, force upset
Piece deforms upon, and the first conducting strip 101 is electrically connected with the second conducting strip 102, and the short circuit for forming outside batteries discharges electricity
Core energy, avoid causing security incident, so as to be advantageous to improve the security performance of battery, can also overcome of the prior art dynamic
The not satisfactory deficiency of power battery cap security.
In the optional scheme of the embodiment, Safety shell 103 also includes gusset part 105, the periphery and gusset of rotating sheet
Part 105 is connected, i.e., the periphery of rotating sheet is tightly connected with gusset part 105, and rotating sheet can be one with gusset part 105
Body structure, or Split type structure.
In the optional scheme of the embodiment, connected between the conducting strip 102 of gusset part 105 and second by insulation spacer 106
Connect.
Specifically, the second conducting strip 102 is located at the side of the opening of gusset part 105；The material of insulation spacer 106 can
Think polyethylene, polypropylene or polyvinyl chloride.It should be noted that the material of insulation spacer 106 is not only limited in the embodiment
In three of the above, the isolation material of other forms can also be freely chosen according to actual condition, to realize the function of insulation；It is right
In the insulation spacer 106 of other forms, the embodiment no longer specifically repeats one by one.
In the optional scheme of the embodiment, rotating sheet includes the upset main body 104 of the inner chamber convex to Safety shell 103.
Specifically, upset main body 104 is connected with the periphery of gusset part 105.Come from the outside of Safety shell 103
See, overturn the inner chamber of the recessed Safety shell 103 of main body 104；Convex overturns main body 104 i.e. from the inner chamber of Safety shell 103
It is convex enter Safety shell 103 inner chamber.When the pressure increase in the inner chamber of Safety shell 103, due to that can send out upset main body 104
Raw deformation, makes outer projection of the upset main body 104 from the inner chamber of Safety shell 103 to Safety shell 103.It should be noted that turn over
Turning main body 104 can be made up of shell fragment, to ensure that it can be deformed upon.
In the optional scheme of the embodiment, the length bearing of trend for overturning the section of main body 104 is in arc line shaped.
Specifically, overturning main body 104 can in the form of sheets, after upset main body 104 is sectioned, the length extension side in its section
To in arc line shaped, so as to be advantageous to, elastic deformation can occurs in it, be changed into evagination from convex.It should be noted that the embodiment
In, the length bearing of trend that can also make the section of upset main body 104 is in other shapes, such as fold-line-shaped, as long as in Safety shell
In 103 inner chamber gas pressure intensity increase when, upset main body 104 can due to the inner chamber convex of Safety shell 103 be changed into
The outside evagination of Safety shell 103.
In the optional scheme of the embodiment, the shape that gusset part 105 is surrounded can be circular or polygon.In addition,
The periphery of gusset part 105 can also have flanging, and flanging, which makes the one of gusset part 105 to form one, has less hole, and
Upset main body 104 is connected with flanging.
In the optional scheme of the embodiment, rotating sheet also includes the bulge-structure 107 positioned at the outside of upset main body 104；
Bulge-structure 107 electrically connects with the first conducting strip 101；The gap setting of 107 and second conducting strip of bulge-structure 102；Bulge-structure
107 can be in contact with the second conducting strip 102 when overturning main body 104 and being changed into evagination from convex so that the first conducting strip 101 and
Second conducting strip 102 is electrically connected to form short circuit.
Specifically, the outside of upset main body 104 is relative with the inner side for overturning main body 104, and the inner side of upset main body 104 refers to
Be upset side of the main body 104 towards the inner chamber of Safety shell 103, and the outside for overturning main body 104 is referred to backwards to safety
The side of the inner chamber of housing 103.Bulge-structure 107 can be in the form of a column or hemispherical etc.；Second conducting strip 102 and bulge-structure
107 are oppositely arranged, and the second conducting strip 102 is located at the outside of Safety shell 103.Gas in the inner chamber of Safety shell 103
After pressure increases to setting value, upset main body 104 deforms upon, and is changed into evagination from convex, and bulge-structure 107 is with upset main body
104 move together, and bulge-structure 107 moves to the direction where the second conducting strip 102, the top surface of bulge-structure 107 just with
Second conducting strip 102 is in contact, and so as to realize that the second conducting strip 102 electrically connects with the first conducting strip 101, is formed afterwards short
Road.
In the optional scheme of the embodiment, bulge-structure 107 is positioned at the center of upset main body 104, certainly, projection knot
Structure 107 can also be located at the other positions in upset main body 104.The top surface of bulge-structure 107 is curved surface or plane.
In the optional scheme of the embodiment, bulge-structure 107 and rotating sheet are integral type structure or split-type structural；It is raised
Structure 107 is solid or hollow body.Bulge-structure 107 can be by being fixed on upset master by welding or other connected modes
On body 104.
In the optional scheme of the embodiment, the top surface of bulge-structure 107 prevents less than the plane where the periphery of rotating sheet
When upset main body 104 is not overturn, bulge-structure 107 can touch the second conducting strip 102.
Over-charging of battery safety guard is provided in the embodiment, during use is charged normal, bulge-structure 107 is not
Contacted with the second conducting strip 102, short circuit current is not present between the first conducting strip 101 and the second conducting strip 102, battery normally fills
Electricity.When battery occurs accident or overcharged, internal temperature of battery rise, the gas pressure intensity increase of inside battery, so that peace
Gas pressure intensity increase in the inner chamber of full housing 103, when gas pressure intensity reaches upset main body 104 in the inner chamber of Safety shell 103
Eversion pressure when, upset main body 104 overturn, i.e., upset main body 104 evagination is changed into from convex, bulge-structure 107 moves up,
And contacted with the second conducting strip 102, the second conducting strip 102 is contacted with bulge-structure 107 or the second conducting strip 102 and bulge-structure
The position of 107 contacts fuses, so that the first conducting strip 101 is connected with the second conducting strip 102, realizes battery outer short
Road, battery core energy is discharged, have the function that to protect battery.On the one hand it may insure to digest and overcharge electric current, on the other hand may be used
To discharge the hidden danger energy content of battery, eliminate safe hidden trouble.
In the optional scheme of the embodiment, venthole can be set on the second conducting strip 102, the venthole and outside batteries
It is connected, i.e., is connected with air；The inversion air pressure of the upset main body 104 of safety upset component is 0.3MPa~0.5MPa,
And it will not be ruptured under 0.7MPa air pressure, turning height is not less than 0.5mm.When the gas pressure in the inner chamber of Safety shell 103
It is powerful when 0.7MPa, the gusset part 105 of Safety shell 103 and/or upset main body 104 can then rupture, such battery
Internal gases at high pressure discharge from rent first, and are discharged by the venthole on the second conducting strip 102 to outside battery
Portion, it effectively prevent the blast of whole battery.It should be noted that in the embodiment, can also be installed on Safety shell 103
Relief valve, in a manner of replacing Safety shell 103 and rupture, when the gas pressure intensity in the inner chamber of Safety shell 103 is more than 0.7MPa
When, to realize at relief valve, the gas in inside battery is discharged.
In summary, the over-charging of battery safety guard that the embodiment provides, both by overturning the upset of main body 104,
The first conducting strip 101 is connected with the second conducting strip 102, battery is realized external short circuit, discharge battery core energy；It can pass through again
Rupturing to realize the release of gas for Safety shell 103, effectively avoids battery explosion, so as to substantially increase cell charge protection
Performance.
Embodiment two
The embodiments of the invention provide a kind of lithium ion battery, including over-charging of battery safety guard.Specifically, side
The relative opposite side for enclosing the opening of part 105 is fixedly connected with the housing of battery, and in the inner chamber and battery of Safety shell 103
Portion is connected.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other implementations
Included some features rather than further feature in example, but the combination of the feature of different embodiments means in the present invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed
It is one of any mode to use in any combination.
Claims (10)
1. a kind of over-charging of battery safety guard, it is characterised in that including the first conducting strip, the second conducting strip and safety upset
Component；The safety upset component includes Safety shell；The inner chamber of the Safety shell is connected with inside battery, in electricity
When gas pressure intensity inside pond changes, the gas pressure intensity in the inner chamber of the Safety shell can also change；The peace
Full housing includes rotating sheet；The rotating sheet can turn in the gas pressure intensity increase in the inner chamber of the Safety shell
Turn, so that first conducting strip and the second conducting strip are electrically connected to form short circuit.
2. over-charging of battery safety guard according to claim 1, it is characterised in that the rotating sheet is included to described
The upset main body of the inner chamber convex of Safety shell.
3. over-charging of battery safety guard according to claim 2, it is characterised in that the section of the upset main body
Length bearing of trend is in arc line shaped.
4. the over-charging of battery safety guard according to Claims 2 or 3, it is characterised in that the rotating sheet also includes
Bulge-structure positioned at the outside of the upset main body；The bulge-structure electrically connects with first conducting strip；The projection
Structure and the second conducting strip gap setting；The bulge-structure can it is described upset main body evagination is changed into from convex when with
Second conducting strip is in contact, so that first conducting strip and the second conducting strip are electrically connected to form short circuit.
5. over-charging of battery safety guard according to claim 4, it is characterised in that the top surface of the bulge-structure is
Curved surface or plane.
6. over-charging of battery safety guard according to claim 4, it is characterised in that the bulge-structure turns over described
Rotor is integral type structure or split-type structural；The bulge-structure is solid or hollow body.
7. over-charging of battery safety guard according to claim 4, it is characterised in that the top surface of the bulge-structure is low
Plane where the periphery of the rotating sheet.
8. the over-charging of battery safety guard according to any one of claim 1-3, it is characterised in that the containment
Body also includes gusset part, and the periphery of the rotating sheet is connected with the side round part split-phase.
9. over-charging of battery safety guard according to claim 8, it is characterised in that the gusset part and described the
Connected between two conducting strips by insulation spacer.
10. a kind of lithium ion battery, it is characterised in that including over-charging of battery as claimed in any one of claims 1-9 wherein safety
Protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144092.0A CN107665970A (en) | 2017-11-16 | 2017-11-16 | Over-charging of battery safety guard and lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144092.0A CN107665970A (en) | 2017-11-16 | 2017-11-16 | Over-charging of battery safety guard and lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107665970A true CN107665970A (en) | 2018-02-06 |
Family
ID=61143809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711144092.0A Pending CN107665970A (en) | 2017-11-16 | 2017-11-16 | Over-charging of battery safety guard and lithium ion battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN107665970A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738805A (en) * | 2018-12-29 | 2019-05-10 | 蜂巢能源科技有限公司 | Battery and its test method, device, electronic equipment |
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| CN207381473U (en) * | 2017-11-16 | 2018-05-18 | 北京国能电池科技有限公司 | Over-charging of battery safety guard and lithium ion battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950812A (en) * | 2009-07-09 | 2011-01-19 | Sb锂摩托有限公司 | Rechargeable battery |
| JP2013235814A (en) * | 2012-04-11 | 2013-11-21 | Mitsubishi Heavy Ind Ltd | Nonaqueous electrolyte secondary battery |
| US20150072189A1 (en) * | 2013-09-06 | 2015-03-12 | Samsung Sdi Co., Ltd. | Rechargeable battery having short-circut member |
| WO2016197375A1 (en) * | 2015-06-11 | 2016-12-15 | 宁德时代新能源科技股份有限公司 | Power battery cap structure and power battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109738805A (en) * | 2018-12-29 | 2019-05-10 | 蜂巢能源科技有限公司 | Battery and its test method, device, electronic equipment |
| CN109738805B (en) * | 2018-12-29 | 2021-02-23 | 蜂巢能源科技有限公司 | Battery, testing method and device thereof, and electronic equipment |
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