CN110380141A - Battery core and electrochemical appliance - Google Patents
Battery core and electrochemical appliance Download PDFInfo
- Publication number
- CN110380141A CN110380141A CN201810331350.4A CN201810331350A CN110380141A CN 110380141 A CN110380141 A CN 110380141A CN 201810331350 A CN201810331350 A CN 201810331350A CN 110380141 A CN110380141 A CN 110380141A
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- Prior art keywords
- tab
- battery core
- core according
- electrochemical appliance
- battery
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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
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- 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
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
-
- 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)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of electrochemical appliance, electrochemical appliance includes: battery core, including main body and the first tab, and first tab is connect with the main body；The shrinkage temperature of first element, the first element is more than or equal to 70 degree, and the first element is set on first tab.Electrochemical appliance will be shunk when overcharging failure and temperature is more than or equal to 70 degree as a result, and the first tab is broken before over-charging of battery failure, the charging circuit of battery in this way is in an off state, current interruptions, so that the safety of electrochemical appliance is guaranteed.
Description
Technical field
The present invention relates to a kind of electrochemical appliance, in particular to a kind of electrochemical appliance comprising being heat-shrinked part.
Background technique
Lithium ion battery is a kind of high-efficient movable energy storage device, with high voltage, high-energy-density, long circulation life it is excellent
Gesture is widely used in the electronic products such as mobile phone, laptop, digital camera, electric car and energy-accumulating power station.Lithium from
Sub- battery main problem to be solved first is that improve battery safety, as avoid battery be more than allow current or voltage
Charge and discharge are carried out, this process, which becomes, overcharges failure electricity or overdischarge.Battery is during overcharging failure electricity and overdischarge, electricity
Temperature inside pond increases and battery producing gas increases air pressure inside, causes battery flatulence phenomenon, electrochemical appliance can be sent out when serious
Heat failure, burning cause safety accident.
Summary of the invention
The present invention is directed at least solve the problems, such as it is in the prior art overcharge failure electricity.For this purpose, the present invention proposes a kind of electrification
Learn device, the electrochemical appliance can when overcharging failure quick-speed interruption electric current, it is ensured that the safety in utilization of its own.
Battery core according to the present invention, comprising: the first tab；First element, the shrinkage temperature of the first element are greater than etc.
In 70 degree, the first element is set on first tab.
Electrochemical appliance will be shunk, and when overcharging failure and temperature is more than or equal to 70 degree in over-charging of battery as a result,
The first tab is broken before failure, the charging circuit of such battery is in an off state, current interruptions, so that electrochemical
The safety for learning device is guaranteed.
In some examples of the invention, the first element is casing, and the first element is covered in first tab
Outside.
In some examples of the invention, the section of described sleeve pipe is rectangle or round or ellipse or triangle.
In some examples of the invention, the surface of first tab is arranged in the first element.
In some examples of the invention, the first element is sheet material or casing.
In some examples of the invention, the first element includes the first width and the first length, first width
With first length meet: the first width be more than or equal to first tab width 40% and first length be more than or equal to
At least one of 40% of the length of first tab.In some examples of the invention, the first element is covered completely
Cover first tab.
In some examples of the invention, the electrochemical appliance includes multiple first tabs, and the electrochemical appliance is also
Including lead terminal, the multiple first tab and the lead terminal are coupled.
In some examples of the invention, the material of the first element may include polyethylene, polypropylene, polyvinyl chloride,
At least one of polyethylene terephthalate, EP rubbers, butadiene-styrene rubber, nitrile rubber and polytetrafluoroethylene (PTFE).
In some examples of the invention, the battery core further includes the second tab and second element, and the second element is set
It is placed in second tab, the shrinkage temperature of the second element is more than or equal to 70 degree.
In some examples of the invention, the battery core further includes the second tab, and the first element is also provided at described
On second tab.
In some examples of the invention, the first element is casing, and first tab and second tab are set
It sets in the same described sleeve pipe.
In some examples of the invention, the first element is sheet material.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic diagram of electrochemical appliance according to a first embodiment of the present invention；
Fig. 2 is the side view of electrochemical appliance according to a first embodiment of the present invention；
Fig. 3 is the schematic diagram of electrochemical appliance according to a second embodiment of the present invention；
Fig. 4 is the side view of electrochemical appliance according to a second embodiment of the present invention；
Fig. 5 is the schematic diagram of electrochemical appliance according to a third embodiment of the present invention.
Appended drawing reference:
Electrochemical appliance 10；
Battery core 1；Main body 11；First tab 12a；Second tab 12b；
Lead terminal 2；First element 3；Second element 4.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more of the features surely.Of the invention
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Below with reference to the accompanying drawings electrochemical appliance 10 according to an embodiment of the present invention is described in detail, electrochemical appliance 10 can be
The shell of lithium ion battery, battery can be packaging film.
As Figure 1-Figure 5, electrochemical appliance 10 according to an embodiment of the present invention may include: battery core 1 and first element
3, battery core 1 includes: main body 11 and the first tab 12a, and the first tab 12a is connect with main body 11, and the shrinkage temperature of first element 3 is big
In being equal to 70 degree, first element 3 is set on the first tab 12a.That is, first element 3 is overcharged in electrochemical appliance 10
It shrinks before failure, and breaks the first tab 12a within the regular hour, the charging circuit of such battery, which is in, disconnects shape
State, current interruptions, so that the safety of electrochemical appliance 10 is guaranteed.It is mentioned here overcharge failure it should be understood that
For the state of over-charging of battery burning.
An alternative embodiment according to the present invention, as depicted in figs. 1 and 2, first element 3 can be casing, first yuan
3 sets of part outside the first tab 12a.It on the one hand can guarantee the arrangement reliability of first element 3 by the way of being arranged, in addition one
Aspect can allow first element 3 to apply active force to the first tab 12a simultaneously in all directions, can make first yuan
Part 3 can effectively break the first tab 12a, it is ensured that the safety in utilization of electrochemical appliance 10.
It should be noted that the form that first element 3 is arranged the first tab 12a is not limited to one kind.
For example, as depicted in figs. 1 and 2, first element 3 only covers outside the first tab 12a, in other words, first element 3 is the
Without departing from the first tab 12a on the length extending direction of one tab 12a, being arranged such can make the size of first element 3 suitable
Preferably, can be to avoid the waste of material, and other component can be interfered to avoid first element 3.
For another example, as shown in Figure 3 and Figure 4, first element 3 not only covers outside the first tab 12a, can also cover in other component
On, specifically, multiple first tab 12a are coupled with lead terminal 2, and first element 3 can also cover on lead terminal 2, in this way
First element 3 can not only act at the first tab 12a, may also act on the connection of the first tab 12a and lead terminal 2
Place, the fracture before overcharging failure so as to more easily the first tab 12a, and then can guarantee the use of electrochemical appliance 10
Safety.
Further, the section of casing can be rectangle or round or ellipse or triangle.The of above-mentioned arbitrary shape
One element 3 can effectively play the effect of contraction, and can effectively be sheathed at the first tab 12a.
According to another alternative embodiment of the present invention, the surface of the first tab 12a is arranged in first element 3.Namely
It says, first element 3 can also be provided only on the surface of the first tab 12a, reach first element 3 in electrochemical appliance 10 in this way
After shrinkage temperature, first element 3 can drive the surface of the first tab 12a constantly to shrink, and final first element 3 is by the first pole
Ear 12a breaks or disconnects the connection between the first tab 12a and lead terminal 2, thereby may be ensured that electrochemical appliance 10
Safety.
Optionally, first element 3 is sheet material or casing.That is, first element 3 can be set in sheet form
The surface of first tab 12a uses alternatively, first element 3 can be set to the surface of the first tab 12a in the form of casing
The first element 3 of above two form can effectively break the first tab 12a in shrinkage temperature, thereby may be ensured that electrification
Learn the safety of device 10.
Wherein, there are many setting forms of first element 3, citing is illustrated below.First element 3 includes the first width
With the first length, wherein the first length direction of first element 3 can be up and down direction, and the first width direction can be left and right
Direction, alternatively, the first length direction of first element 3 can be left and right directions, the first width direction can be up and down direction.Example
Such as, the 40% of width of first width more than or equal to the first tab 12a, for another example, the first length is more than or equal to the first tab 12a's
The 40% of length, for another example, the first width is more than or equal to the 40% of the width of the first tab 12a and the first length is more than or equal to first
The 40% of the length of tab 12a.By limiting the first width and the first length range of first element 3, first yuan can be made
Part 3 can effectively drive the first tab 12a to shrink until being pulled off in heat shrinkable, interrupt so as to realize in the short time
Electric current.
Optionally, the first tab 12a is completely covered in first element 3.That is, on the surface of the first tab 12a, the
One element 3 can be using the form on the surface the first tab 12a be completely covered, and the contraction intensity of such first element 3 is big, can be with
The first tab 12a quickly is broken, so as to realize interruptive current in the short time.
Specifically, as depicted in figs. 1 and 2, electrochemical appliance 10 includes multiple first tab 12a, and electrochemical appliance 10 is also
Including lead terminal 2, multiple first tab 12a and lead terminal 2 are coupled.Lead terminal 2 can play effectively the first pole of connection
The effect of ear 12a and main body 11 thereby may be ensured that the structural reliability of electrochemical appliance 10.
Wherein, the material of first element 3 can be selected from polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate,
At least one of EP rubbers, butadiene-styrene rubber, nitrile rubber and polytetrafluoroethylene (PTFE).Using 3 energy of first element of above-mentioned material
Enough effectively in shrinkage temperature contract, and the normal work of electrochemical appliance 10 is not influenced.
In addition, as shown in Figure 1, electrochemical appliance 10 further includes being provided with second on the second tab 12b, the second tab 12b
The shrinkage temperature of element 4, second element is more than or equal to 70 degree.It is understood that passing through first element 3 and second element 4
Combination, can be in electrochemical appliance 10 before overcharging failure, it is ensured that at least one of first element 3 and second element 4 can
Work so that current interruptions, and then can guarantee using such form electrochemical appliance 10 using safe
Property.
It should be noted that the mode of the second tab 12b layout elements is not limited to this, it is detailed again below with reference to Fig. 5
The arrangement form of another electrochemical appliance 10 once is carefully described.
As shown in figure 5, first element 3 is also provided at the second tab 12b.In other words, first element 3 is not only arranged at first
Tab 12a also while being set to the second tab 12b.The first element 3 of such setting is arranged simply, and combines
One tab 12a and the second tab 12b, for electrochemical appliance 10 before overcharging failure, the temperature of first element 3, which is equal to, is greater than 70 degree
When, first element 3 shrinks one for capable of at least breaking in the first tab 12a and the second tab 12b, so that electric current
It interrupts, and then can guarantee the safety in utilization of the electrochemical appliance 10 using such form.
A kind of optionally first element 3 can be casing, and casing is integrally sheathed on the first tab 12a and the second tab
12b, i.e. the first tab 12a and the second tab 12b are set in the same first element 3, wherein the first tab 12a and second
Tab 12b is located at the first end and second end of casing.The casing setting of such setting is simple, and by by the end of casing
Portion is corresponding with tab, can to break tab in time when casing shrink, it is ensured that electrochemical appliance 10 using safe
Property.
Another optionally first element 3 can be sheet material, and first element 3 is located at the first tab 12a and the second tab
The same side surface of 12b.3 structure of first element of such setting is simple, and material saving, in addition, sheet material shrink when can and
When break tab, it is ensured that the safety in utilization of electrochemical appliance 10.
Wherein, electrochemical appliance 10 can be battery.
In general, the lithium ion secondary battery cathode that include lithium base oxide constituted as positive electrode active materials and carbon materials
Expect the anode constituted as negative electrode active material.Cathode and anode by partition (typically micropore polymer diaphragm) mutually every
From partition allows to exchange lithium ion between two electrodes.According to the electrolyte for lithium ion secondary battery, battery is by into one
Step is classified as liquid electrolyte battery and polymer electrolyte cells.For example, the secondary cell using liquid electrolyte is referred to as
" lithium ion secondary battery " is referred to as " lighium polymer secondary battery " using the secondary cell of polyelectrolyte.Lithium ion two
Primary cell can be formed as various shape, such as can type lithium secondary battery and pouch-type lithium ion secondary battery.
Since the cathode material (for example, LiCoO 2, LiFePO 4) and anode material (such as carbon) of electric discharge are steady in an atmosphere
It is fixed simultaneously therefore easily to be handled in industrial practice, therefore battery unit is usually assembled with discharge condition.In charging process
In, two electrodes are coupled externally to power supply, and electronics is caused to be discharged into anode from cathode.Meanwhile lithium ion by electrolyte from
Cathode internally moves.In this way, external energy in the form of chemical energy electrochemical storage with different chemical potentials, (i.e. cathode is high
Current potential and anode low potential) anode and cathode material in.During discharge, electronics is by external loading (for example, mobile electricity
The engine in circuit or electric vehicle in words) it is mobile to work from anode to outside, and lithium ion is in electrolyte
Portion is moved to cathode from anode.As a result, the chemical energy of the electrochemical reaction release storage at two electrodes.This is also referred to as " shuttle
Chair " mechanism, lithium ion shuttle between the anode and cathode during being charged and discharged circulation.
Wherein, pouch-type lithium ion secondary battery includes pouch-type casing and electrode assembly, which includes top shell
And bottom shell, electrode assembly accommodate in the shell.It top and bottom shell and is engaged with each other in side, and the other side is opened wide
With accommodate electrod component.The accommodation space of electrode assembly is formed in lower casing.By such as top of thermal shell sum and
Bottom periphery forms top and bottom hermetic unit.
Shell is a multilayered structure, and shell includes the heat bonding with bonding characteristics as sealing, metal material
What is formed is used to keep mechanical strength and is used as the metal layer and insulating layer for stopping aqueous vapor.
Electrode assembly may include be connected to the first pole piece, the second pole piece and setting the first pole piece and the second pole piece it
Between partition, the first tab is electrically connected to the first pole piece, and the second tab is electrically connected to the second pole piece.Electrode assembly can be by first
Pole piece, partition and the second pole piece coiling form.
Positive plate includes plus plate current-collecting body and the positive-active material coated in the lithium base oxide on plus plate current-collecting body surface
The bed of material.Positive pole ear can be fixed by welding on plus plate current-collecting body, directly can also cut to be formed by plus plate current-collecting body.Just
The material of pole tab generally can be nickel or nickel alloy.
Negative electrode tab includes negative current collector and the negative electrode active material that is arranged on negative current collector, and negative current collector is aluminium
Foil, negative electrode active material include carbon material.Negative lug can be fixed by welding on negative current collector, can also be by negative
Pole collector directly cuts to be formed, and the material of negative lug generally can be nickel or nickel alloy.
Separator is arranged between positive plate and negative electrode tab to play insulating effect.Separator can by polyethylene, poly- third
Alkene or polyethylene and polyacrylic composition are formed.In one embodiment, the width of separator is greater than positive plate and negative electrode tab
Width, can effectively prevent the short circuit between positive plate and negative electrode tab in this way.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (15)
1. a kind of battery core, wherein include:
First tab；
First element is set on first tab, and the shrinkage temperature of the first element is more than or equal to 70 degree.
2. battery core according to claim 1, wherein the first element is casing, and described sleeve pipe is covered in first pole
On ear.
3. battery core according to claim 2, wherein the cross sectional shape of described sleeve pipe is selected from rectangle, circle, ellipse and three
It is one of angular.
4. battery core according to claim 1, wherein the surface of first tab is arranged in the first element.
5. battery core according to claim 4, wherein the first element is sheet material.
6. battery core according to claim 5, wherein the first element includes the first width and the first length, and described the
One width and first length meet: the first width be more than or equal to the width of first tab 40% and first length it is big
In at least one of 40% of the length for being equal to first tab.
7. battery core according to claim 6, wherein first tab is completely covered in the first element.
8. battery core according to claim 1, wherein the battery core includes multiple first tabs, and the battery core further includes drawing
Line terminals, the multiple first tab and the lead terminal couple.
9. battery core according to claim 8, wherein the first element is arranged on first tab and the lead
On terminal.
10. battery core according to claim 1, wherein the material of the first element includes polyethylene, polypropylene, polychlorostyrene
At least one of ethylene, polyethylene terephthalate, EP rubbers, butadiene-styrene rubber, nitrile rubber and polytetrafluoroethylene (PTFE).
11. battery core according to claim 1, wherein the battery core further includes the second tab and second element, and described second
Element is set to second tab, and the shrinkage temperature of the second element is more than or equal to 70 degree.
12. battery core according to claim 1, wherein the battery core further includes the second tab, and the first element is also set up
In on second tab.
13. battery core according to claim 11, wherein the first element is casing, first tab and described the
Two tabs are arranged in described sleeve pipe.
14. battery core according to claim 12, wherein the first element is sheet material.
15. a kind of electrochemical appliance, including the battery core as described in any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810331350.4A CN110380141A (en) | 2018-04-13 | 2018-04-13 | Battery core and electrochemical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810331350.4A CN110380141A (en) | 2018-04-13 | 2018-04-13 | Battery core and electrochemical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110380141A true CN110380141A (en) | 2019-10-25 |
Family
ID=68243666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810331350.4A Pending CN110380141A (en) | 2018-04-13 | 2018-04-13 | Battery core and electrochemical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110380141A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114079127A (en) * | 2020-08-11 | 2022-02-22 | 北京小米移动软件有限公司 | Battery pack and terminal |
| WO2022110142A1 (en) * | 2020-11-30 | 2022-06-02 | 东莞新能安科技有限公司 | Battery and electric device |
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| JPH1154007A (en) * | 1997-08-06 | 1999-02-26 | Sumitomo Electric Ind Ltd | Current interrupting device and battery using it |
| KR100858796B1 (en) * | 2002-01-05 | 2008-09-17 | 삼성에스디아이 주식회사 | Safety apparatus and secondary battery having the same |
| CN100448091C (en) * | 2004-03-29 | 2008-12-31 | 株式会社东芝 | Nonaqueous electrolyte secondary battery |
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2018
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| JPH1154007A (en) * | 1997-08-06 | 1999-02-26 | Sumitomo Electric Ind Ltd | Current interrupting device and battery using it |
| KR100858796B1 (en) * | 2002-01-05 | 2008-09-17 | 삼성에스디아이 주식회사 | Safety apparatus and secondary battery having the same |
| CN100448091C (en) * | 2004-03-29 | 2008-12-31 | 株式会社东芝 | Nonaqueous electrolyte secondary battery |
| CN101517781A (en) * | 2006-07-18 | 2009-08-26 | 株式会社Lg化学 | Safety switch using heat shrinkage tube and secondary battery including the same |
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| Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114079127A (en) * | 2020-08-11 | 2022-02-22 | 北京小米移动软件有限公司 | Battery pack and terminal |
| WO2022110142A1 (en) * | 2020-11-30 | 2022-06-02 | 东莞新能安科技有限公司 | Battery and electric device |
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Application publication date: 20191025 |