CN205752365U - Battery protecting apparatus, cover plate assembly and battery - Google Patents
Battery protecting apparatus, cover plate assembly and battery Download PDFInfo
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- CN205752365U CN205752365U CN201620450365.9U CN201620450365U CN205752365U CN 205752365 U CN205752365 U CN 205752365U CN 201620450365 U CN201620450365 U CN 201620450365U CN 205752365 U CN205752365 U CN 205752365U
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- electrode terminal
- battery
- temperature memory
- board body
- cover board
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
This utility model provides a kind of battery protecting apparatus, cover plate assembly and battery, this battery protecting apparatus includes cover board body and temperature memory element, one end of described temperature memory element electrically connects with described second electrode terminal, described temperature memory element has low temperature memory configuration and high temperature memory configuration, the other end of described temperature memory element disconnects with described cover board body respectively under described low temperature memory configuration and high temperature memory configuration and contacts, described temperature memory element can be deformed into high temperature memory configuration higher than when presetting temperature control threshold values by low temperature memory configuration at internal temperature of battery.This battery protecting apparatus; when internal temperature of battery exceedes the preset temperature threshold values of temperature memory element; short circuit is formed between the first electrode terminal and the second electrode terminal; utilize cover board body and the isostructural impedance of temperature memory element to consume battery remaining energy, reduce battery catches fire or the risk of blast.
Description
Technical field
This utility model belongs to cell safety guard technology field, particularly relate to a kind of battery protecting apparatus,
Cover plate assembly and battery.
Background technology
At present, its cover plate of battery of the overwhelming majority not having safety protection structure, cover plate is as just supporting pole
Post uses.When battery by clashing into, foreign body pierce through or during the abuse conditions such as overheated, inside battery can send out one
The electrochemical reaction that series is complicated.It is not effectively controlled when these are abnormal, during battery generation thermal runaway,
Battery just has the danger even exploded on fire.
Taiwan Patent TW093118829 discloses a kind of battery protecting apparatus, and this battery has at least two leads
Electric terminal and at least one conduction introduction, conduction introduction keeps contacting to connect circuit with conducting terminal.Should
Battery protecting apparatus comprises at least one breaking units, when ambient temperature is higher than a predetermined temperature, and breaking units
Produce deformation and make conduction introduction separate to cut off circuit with conducting terminal.This battery protecting apparatus can be at electricity
When pond occurs thermal runaway, produce deformation by breaking units and make conduction introduction separate with conducting terminal to cut off electricity
Road, and then protection battery.
But, above-mentioned battery protecting apparatus, when battery generation thermal runaway, is only turned off circuit, cuts off circuit
Time, owing to battery power does not reduce, often inside battery is also carrying out the electrochemical reaction of complexity, this
Sample, the risk that battery catches fire even explodes is the biggest.
It addition, the conduction introduction of above-mentioned battery protecting apparatus only contacts to connect electricity by holding with conducting terminal
Road, breaking units is frequent transitions between being switched on and off, and breaking units connects with conduction introduction or conducting terminal
Touch the poor reliability of circuit passband, and then make above-mentioned battery protecting apparatus that battery conveyance capacity is had the relatively day of one's doom
System, and the precision controlling temperature is not high enough.
Utility model content
Technical problem to be solved in the utility model is to use cut-out circuit mode to carry out battery for existing
The battery protecting apparatus of protection, when cutting off circuit in battery generation thermal runaway, battery power does not reduce, and leads
Cause the defect that the risk even exploded of battery catches fire is the biggest, it is provided that a kind of battery protecting apparatus.
The technical scheme that the above-mentioned technical problem of this utility model solution is used is:
Thering is provided a kind of battery protecting apparatus, this battery has the first electrode terminal and the second electrode terminal, and first
In electrode terminal and the second electrode terminal one is positive terminal, and another is negative terminal, described battery
Protection device includes cover board body and temperature memory element, one end of described temperature memory element and described second
Electrode terminal electrically connects, and described temperature memory element has low temperature memory configuration and high temperature memory configuration, described
The other end of temperature memory element under described low temperature memory configuration and high temperature memory configuration respectively with described cover plate
Body disconnects and contacts, and described temperature memory element can be at internal temperature of battery higher than when presetting temperature control threshold values
It is deformed into high temperature memory configuration by low temperature memory configuration.
Further, described first electrode terminal is positive terminal, and described second electrode terminal is negative terminal.
Further, described temperature memory element is memorial alloy or bimetal leaf.
Further, described temperature memory element arranges bending away from one end of described second electrode terminal, institute
State and in bending, be formed with the contact surface mated with cover board body medial surface.
Further, described contact surface arranges the coat of metal.
Further, described temperature memory element is provided with the nonmetal protection of the surface configuration beyond the coat of metal
Coating.
Further, the span of described default temperature control threshold values is 80-250 DEG C.
Further, described battery protecting apparatus also includes being connected electrically in described cover board body and described first electricity
Short-circuit resistance between extreme son.
Further, the resistance R span of described short-circuit resistance is:
1/ (2Ic) < R < 5/Ic, wherein, Ic represents the numerical value of the charging current of battery.
According to battery protecting apparatus of the present utility model, one end of temperature memory element and described second electrode tip
Son electrical connection, the other end under its low temperature memory configuration and high temperature memory configuration respectively with cover board body disconnect and
Contact, temperature memory element can be when internal temperature of battery is higher than default temperature control threshold values by low temperature memory configuration
It is deformed into high temperature memory configuration, when internal temperature of battery exceedes the preset temperature threshold values of temperature memory element,
Temperature memory element is deformed to carry out in advance the high temperature memory configuration of based process according to " memory ", and temperature is remembered
Recall element and the conducting of the first electrode terminal, thus, by the first electrode terminal, cover board body, temperature memory unit
Part and the conducting of the second electrode terminal, and then between the first electrode terminal and the second electrode terminal, form short circuit,
Achieve internal short-circuit of battery, and then outside abnormal loop can be cut off, battery is isolated, prevents more
Big potential safety hazard occurs, and prevents from causing chain hidden danger because of abnormal battery.Whole exception is made to start from this different
Often battery, also terminates in this exception battery, reduces battery to greatest extent and abuses the risk brought.Further,
When being short-circuited, cover board body and the isostructural impedance of temperature memory element is utilized to consume the remnants energy of battery
Amount, farthest reduces battery catches fire or the risk of blast.
It addition, this utility model additionally provides a kind of cover plate assembly, including the first electrode terminal, the second electrode
Terminal, between described first electrode terminal and cover board body seal first sealing structure, for described
Second insulation and sealing structure of insulated enclosure and above-mentioned battery protection between second electrode terminal and cover board body
Device, described cover plate main body is provided with the first through hole and the second through hole, described first electrode terminal and second
Electrode terminal is plugged in described first through hole and the second through hole respectively.
Further, described cover plate assembly also include first in lead-out tablet in lead-out tablet and second, described first
In interior lead-out tablet and second, lead-out tablet is connected to described first electrode terminal and the inner side of the second electrode terminal
End, one end of described temperature memory element is fixing with lead-out tablet in described second to be connected.
Further, described cover plate assembly also includes short-circuit resistance and is connected to outside described first electrode terminal
First outer lead-out tablet of side, described short-circuit resistance is connected electrically in described cover board body and the described first outer extraction
Between sheet.
Further, described first sealing structure includes that ecto-entad is sequentially sleeved at described first electrode terminal
On the first dead ring, the first video disc and the first insulating sealer, described first dead ring is fixed on described
On one electrode terminal, the interior edge of described first video disc is arranged on described first insulating sealer and the first dead ring
Between, the outer of described first video disc is arranged between described first insulating sealer and cover board body, described
First insulating sealer is connected in described cover board body and first between lead-out tablet, lead-out tablet in described first
It is fixed on the medial extremity of described first electrode terminal.
Further, described second sealing structure includes that ecto-entad is sequentially sleeved at described second electrode terminal
On the second dead ring, the second video disc and the second insulating sealer, described second dead ring is fixed on described
On two electrode terminals, the interior edge of described second video disc is arranged on described second insulating sealer and the second dead ring
Between, the outer of described second video disc is arranged between described second insulating sealer and cover board body, described
Second insulating sealer is connected in described cover board body and second between lead-out tablet, lead-out tablet in described second
It is fixed on the medial extremity of described second electrode terminal.
It addition, this utility model additionally provides a kind of battery, it includes above-mentioned cover plate assembly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cover plate assembly that this utility model one embodiment provides；
Fig. 2 is the normal operating conditions (bimetallic of the battery protecting apparatus that this utility model one embodiment provides
Sheet is in low temperature memory configuration)；
Fig. 3 is that the short-circuit condition of the battery protecting apparatus that this utility model one embodiment provides is (at bimetal leaf
In high temperature memory configuration)；
Fig. 4 is that the local near its first electrode terminal of cover plate assembly that this utility model one embodiment provides is put
Big figure.
Reference in description is as follows:
1, cover board body；101, the first through hole；102, the second through hole；2, the first electrode terminal；201、
First buffering ring；3, lead-out tablet in first；4, the first outer lead-out tablet；5, the second electrode terminal；501、
Second buffering ring；6, lead-out tablet in second；7, bimetal leaf；701, bending；8, short-circuit resistance；9、
First seals structure；10, the second insulation and sealing structure；11, the first dead ring；12, the first video disc；13、
First insulating sealer；14, the second dead ring；15, the second video disc；16, the second insulating sealer.
Detailed description of the invention
In order to make this utility model be solved the technical problem that, technical scheme and beneficial effect clearer,
Below in conjunction with drawings and Examples, this utility model is described in further detail.Should be appreciated that this
Specific embodiment described by place, only in order to explain this utility model, is not used to limit this utility model.
As it is shown in figure 1, the cover plate assembly that this utility model one embodiment provides, including cover board body 1, first
Draw in lead-out tablet 3, first outer lead-out tablet the 4, second electrode terminal 5, second in electrode terminal 2, first
Sheet 6, bimetal leaf 7, short-circuit resistance 8, for the insulation between the first electrode terminal 2 and cover board body 1
First sealed seals structure 9 and for the insulated enclosure between the second electrode terminal 5 and cover board body 1
Second insulation and sealing structure 10.Wherein, cover board body 1, bimetal leaf 7 and short-circuit resistance 8 constitute battery
Protection device.Described short-circuit resistance 8 be connected electrically in described cover board body 1 and described first outer lead-out tablet 4 it
Between.
In the present embodiment, the resistance R span of described short-circuit resistance 8 is:
1/(2Ic)<R<5/Ic (1)；
Wherein, Ic represents the numerical value of charging current of battery.The unit of charging current Ic and the unit of resistance R
Unit in same level, even Ic is ampere, then the unit of resistance R of short-circuit resistance is ohm；If Ic
Unit be milliampere, then the unit of resistance R of short-circuit resistance is milliohm.In formula (1), Ic only represents numerical value
Size.The preferred scope of resistance R of short-circuit resistance in formula (1), designs according to the difference of charge power supply, this
Sample, it is possible to reduce short-circuit resistance and produce excessive Joule heat.
In the present embodiment, temperature memory element is bimetal leaf 7.
As it is shown in figure 1, be provided with the first through hole 91 and the second through hole 92 on described cover plate main body 1, described
One electrode terminal 2 and the second electrode terminal 5 are plugged in described first through hole 91 and the second through hole 92 respectively,
In described first, in lead-out tablet 3 and second, lead-out tablet 6 is respectively welded at described first electrode terminal 2 and second
The medial extremity of electrode terminal 5, described first outer lead-out tablet 4 is welded on the outside of described first electrode terminal 2
End.
As Fig. 2 and Fig. 3 shows, one end of described bimetal leaf 7 is fixed on institute by the way of welding or riveting
State the edge of lead-out tablet 6 in second.
In the present embodiment, as shown in Figures 2 and 3, described bimetal leaf 7 have low temperature memory configuration (as
Shown in Fig. 2) and high temperature memory configuration (as shown in Figure 3), the other end of described bimetal leaf 7 is in Fig. 2 institute
The low temperature memory configuration shown disconnects with described cover board body 1, and in the high temperature memory configuration shown in Fig. 3 and institute
State cover board body 1 contact conducting.Described bimetal leaf 7 can be at internal temperature of battery higher than presetting temperature-sensing valve
During value, low temperature memory configuration as shown in Figure 2 is deformed into the high temperature memory configuration shown in Fig. 3.
In the present embodiment, as shown in Figures 2 and 3, described bimetal leaf 7 is away from described second electrode terminal 5
One end bending 701 is set, described bending 701 is formed the contact surface mated with cover board body 1 medial surface.
In the present embodiment, in order to ensure that cover board body 1 contacts with bimetal leaf 7 well, contact impedance is enough low,
On the contact surface of the bending 701 of bimetal leaf 7, the coat of metal is set.The coat of metal herein includes but does not limits
And the material of stable chemical performance superior in the electric conductivity such as gold, silver and nickel, herein preferred silvering, since
Low ESR requirement can be met, can well control again product cost.The thickness of the coat of metal is 5 μm～60 μm,
More preferably 8～20 μm.In high temperature memory configuration, the contact of the described bending 701 of bimetal leaf 7
The coat of metal on face forms face with the medial surface of cover board body 1 and contacts, and increases bimetal leaf 7 and cover plate
The contact area of body 1, improves the reliability of contact.
In the present embodiment, in order to prevent the active element inside bimetal leaf 7 from participating in electrochemical reaction, double
Sheet metal 7 be provided with the nonmetal protective coating of the surface configuration beyond the coat of metal, such as PPS, PPO and
Fluororine-carbon coating etc..When the thickness of nonmetal protective coating is less than 30 μm, can be because of nonmetal protective coating
Compactness reason, causes the electrolyte of inside battery to penetrate into, may cause nonmetal protective coating partial failure.
When the thickness of nonmetal protective coating is blocked up, it is easy to occur that bimetal leaf 7 deformation causes nonmetal protection
Coating surface cracks, and cost also can increase.Thus, the thickness of nonmetal protective coating is preferably
30-300 μm, more preferably 50-150 μm.
In the present embodiment, the span of described default temperature control threshold values is 80-250 DEG C.Further excellent
Scope is selected to be 80-150 DEG C.That is, when battery generation thermal runaway, internal temperature rapidly increases to 80-250 DEG C
Between one value time, bimetal leaf 7 low temperature memory configuration as shown in Figure 2 is deformed into the height shown in Fig. 3
Temperature memory configuration, by contacting, by the second electrode terminal 5 and cover plate of bimetal leaf 7 and cover board body 1
Body 1 turns on, and owing to short-circuit resistance 8 is connected electrically between cover board body 1 and the first outer lead-out tablet 4,
Make now, short circuit between the first electrode terminal 2 and the second electrode terminal 5.
In the present embodiment, as shown in Figure 4, described first sealing structure 9 includes that ecto-entad is sequentially sleeved at
The first dead ring the 11, first video disc 12 and the first insulating sealer 13 on described first electrode terminal 2,
Described first dead ring 11 is fixed on described first electrode terminal 2, and the interior edge of described first video disc 12 sets
Putting between described first insulating sealer 13 and the first dead ring 11, the outer of described first video disc 11 sets
Putting between described first insulating sealer 13 and cover board body 1, described first insulating sealer 13 connects
In described cover board body 1 and first between lead-out tablet 3, in described first, lead-out tablet 3 is fixed on described
The medial extremity of one electrode terminal 2.It is formed with the first buffering on the outboard end periphery of described first electrode terminal 2
Ring 201, described first buffering ring 201 is welded on described first dead ring 11, the first buffering ring 201 energy
Enough buffer the first electrode terminal 2 and welding stress of the first dead ring 11.When specifically assembling, the first dead ring
The outer surface of 11 is welded on the first buffering ring 201, and the interior edge of described first video disc 11 is welded on described
The inner surface of one dead ring 11, the outer of described first video disc 11 is welded on the inner side table of cover board body 1
Face, the first insulating sealer 13 inserts in the inner chamber of the first video disc 11, lead-out tablet 3 and the first electricity in first
The medial extremity welding of extreme son 2, and support the first insulating sealer 13 with this.
In the present embodiment, the first sealing structure 9 and the second insulation and sealing structure 10 use similar structure, i.e.
As in figure 2 it is shown, described second insulation and sealing structure 10 includes that ecto-entad is sequentially sleeved at described second electrode
The second dead ring the 14, second video disc 15 and the second insulating sealer 16 on terminal 5, described second insulation
Ring 14 is fixed on described second electrode terminal 5, and the interior edge of described second video disc 15 is arranged on described second
Between insulating sealer 20 and the second dead ring 14, the outer of described second video disc 15 is arranged on described second
Between insulating sealer 20 and cover board body 1, described second insulating sealer 20 is connected to described cover plate originally
In body 1 and second between lead-out tablet 6, in described second, lead-out tablet 6 is fixed on described second electrode terminal 5
Medial extremity.The second buffering ring 501 it is formed with on the outboard end periphery of described second electrode terminal 5, described
Two buffering rings 501 are welded on described second dead ring 14, and the second buffering ring 501 can buffer the second electrode
Welding stress between terminal 2 and the second dead ring 14.When specifically assembling, the outside of the second dead ring 14
Surface soldered is on the second buffering ring 501, and the interior edge of described second video disc 15 is welded on described second dead ring
The inner surface of 14, the outer of described second video disc 15 is welded on the inner surface of cover board body 1, and second is exhausted
Edge sealing member 20 inserts in the inner chamber of the second video disc 15, lead-out tablet 6 and the second electrode terminal 5 in second
Medial extremity welds, and supports the second insulating sealer 20 with this.
In the present embodiment, the first dead ring 11 and the second dead ring 14 can be ceramic insulation rings.First dish
Sheet the 12, second video disc 15 is endless metal video disc, to provide good support.
It addition, as it is shown in figure 1, in the present embodiment, the first insulating sealer 13 and the second insulating sealer 16
For integrated injection plastic.Certainly, in other embodiments, the first insulating sealer 13 and the second insulating sealer
16 can also be the moulding formed respectively.
Certainly, in other embodiments, the first sealing structure 9 can also be adopted with the second insulation and sealing structure 10
By different structures, i.e. first seal structure 9 can not provide cover board body 1 and the first electrode terminal 2 it
Between insulation.Certainly, the first sealing structure 9 and the second insulation and sealing structure 10 can also use other conventional
Version.
Furthermore it is preferred that in the present embodiment, the first electrode terminal 2 is positive terminal, the second electrode terminal 5
For negative terminal.Correspondingly, lead-out tablet the 3, first outer lead-out tablet 4 is lead-out tablet, positive pole in positive pole in first
Outer lead-out tablet, in second, lead-out tablet 6 is lead-out tablet in negative pole.So, short-circuit resistance 8 is connected to outside positive pole
Between lead-out tablet and cover board body 1, bimetal leaf 7 is connected with lead-out tablet in negative pole.
Certainly, in other embodiments, it is also possible to arrange in turn, the i.e. first electrode terminal 2 is negative pole end
Son, the second electrode terminal 5 is positive terminal.Owing to cover board body turns on battery container, when first
When electrode terminal is negative terminal, it is outer between lead-out tablet and cover board body that short-circuit resistance is connected to negative pole, thus
Negative terminal is turned on housing, it is possible to analysis lithium phenomenon occurs, causes battery capacity to reduce.Thus, should
In embodiment, it is preferable that avoid analysing lithium phenomenon by other means.
The battery protecting apparatus of above-described embodiment, its principle is as follows:
When battery by clashing into, foreign body pierce through or during the abuse conditions such as overheated, battery thermal runaway, in battery
Portion's temperature can raise along with the generation of thermal runaway, when internal temperature exceedes the preset temperature valve of bimetal leaf 7
During value, owing to the deformation of the active layers of bimetal leaf 7 is greater than the deformation of passive layer, thus bimetal leaf 7
Entirety will (low temperature memory configuration as shown in Figure 2 be deformed into Fig. 3 institute to cover board body 1 curving
The high temperature memory configuration shown), bimetal leaf 7 contacts with cover board body 1, and then by lead-out tablet 6 in second
Turn on cover board body 1, thus, by first electrode terminal the 2, first outer lead-out tablet 4, short-circuit resistance 8,
In cover board body 1, bimetal leaf 7, second, lead-out tablet 6 and the second electrode terminal 5 turn on, and then first
Short circuit is formed, it is achieved that internal short-circuit of battery between electrode terminal 2 and the second electrode terminal 5, so permissible
Cut off outside abnormal loop, battery is isolated, prevents bigger potential safety hazard from occurring, prevent because of exception
Battery cause chain hidden danger.Make whole exception start from this exception battery, also terminate in this exception battery,
Reduce battery to greatest extent and abuse the risk brought.Further, when being short-circuited, short-circuit resistance, lid are utilized
Plate body and the isostructural impedance of bimetal leaf consume battery remaining energy, farthest reduce battery catches fire
Or the risk of blast.When internal temperature of battery is less than this predetermined temperature, bimetal leaf 7 returns to Fig. 2 institute
The state shown, battery recovery is to normal connected state.
Visible, this battery protecting apparatus does not interferes with the connection reliability under battery normal condition, overcurrent energy
Power is strong, and the stability of bimetal leaf change of shape is high, up to 2 × 107Secondary, temperature controls precisely.
It addition, in other embodiments, it is also possible to memorial alloy etc., there is similar shape memory function
Element substitutes the bimetal leaf in above-described embodiment.
It addition, in other embodiments, it is also possible to cancel short-circuit resistance, directly by the first electrode terminal or the
One outer lead-out tablet electrically connects with cover board body.Owing to need not insulation between the first electrode terminal and cover board body,
Thus, in the present embodiment, first seals structure can not include the first dead ring.
It addition, this utility model additionally provides a kind of battery, it includes housing, pole piece and above-mentioned cover plate group
Part.Pole piece is wound by positive plate, barrier film and negative plate and obtains.Cover plate assembly inserts also from the opening part of housing
Fix with housing, by the liquid injection hole on cover plate assembly, inject electrolyte between cover plate assembly and housing
Confined space.Positive pole ear and negative lug it is provided with on positive plate and negative plate.
If the first electrode terminal 2 is positive terminal, then lead-out tablet 3 is connected on positive pole ear in first,
In two, lead-out tablet 6 is connected in negative lug.
In turn, if the first electrode terminal 2 is negative terminal, then lead-out tablet 3 is connected to negative pole pole in first
On ear, in second, lead-out tablet 6 is connected on positive pole ear.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, all should
Within being included in protection domain of the present utility model.
Claims (15)
1. a battery protecting apparatus, this battery has the first electrode terminal and the second electrode terminal, the first electricity
One in extreme son and the second electrode terminal is positive terminal, and another is negative terminal, it is characterised in that
Described battery protecting apparatus includes cover board body and temperature memory element, one end of described temperature memory element with
Described second electrode terminal electrical connection, described temperature memory element has low temperature memory configuration and high temperature memory shape
State, the other end of described temperature memory element under described low temperature memory configuration and high temperature memory configuration respectively with
Described cover board body disconnects and contacts, and described temperature memory element can be at internal temperature of battery higher than presetting temperature
It is deformed into high temperature memory configuration by low temperature memory configuration during control threshold values.
Battery protecting apparatus the most according to claim 1, it is characterised in that described first electrode terminal
For positive terminal, described second electrode terminal is negative terminal.
Battery protecting apparatus the most according to claim 1, it is characterised in that described temperature memory element
For memorial alloy or bimetal leaf.
Battery protecting apparatus the most according to claim 1, it is characterised in that described temperature memory element
One end away from described second electrode terminal arranges bending, described bending is formed and cover board body medial surface
The contact surface of coupling.
Battery protecting apparatus the most according to claim 4, it is characterised in that arrange on described contact surface
The coat of metal.
Battery protecting apparatus the most according to claim 5, it is characterised in that described temperature memory element
It is provided with the nonmetal protective coating of the surface configuration beyond the coat of metal.
Battery protecting apparatus the most according to claim 1, it is characterised in that described default temperature control threshold values
Span be 80-250 DEG C.
8. according to the battery protecting apparatus described in claim 1-7 any one, it is characterised in that described electricity
Pond protection device also includes the short circuit electricity being connected electrically between described cover board body and described first electrode terminal
Resistance.
Battery protecting apparatus the most according to claim 8, it is characterised in that the resistance of described short-circuit resistance
Value R span is:
1/ (2Ic) < R < 5/Ic, wherein, Ic represents the numerical value of the charging current of battery.
10. a cover plate assembly, it is characterised in that include the first electrode terminal, the second electrode terminal,
One seals structure is used for the first sealing structure of sealing between described first electrode terminal and cover board body, is used for
Second insulation and sealing structure of insulated enclosure and claim between described second electrode terminal and cover board body
Battery protecting apparatus described in 1-7 any one, described cover plate main body is provided with the first through hole and second and leads to
Hole, described first electrode terminal and the second electrode terminal are plugged in described first through hole and the second through hole respectively.
11. cover plate assemblies according to claim 10, it is characterised in that described cover plate assembly also includes
Lead-out tablet in lead-out tablet and second in first, in described first, in lead-out tablet and second, lead-out tablet is connected to
Described first electrode terminal and the medial extremity of the second electrode terminal, one end of described temperature memory element is with described
In second, lead-out tablet is fixing connects.
12. cover plate assemblies according to claim 10, it is characterised in that described cover plate assembly also includes
Short-circuit resistance and be connected to the first outer lead-out tablet of outboard end of described first electrode terminal, described short-circuit resistance
It is connected electrically between described cover board body and described first outer lead-out tablet.
13. cover plate assemblies according to claim 11, it is characterised in that described first seals structure bag
Including ecto-entad, to be sequentially sleeved at the first dead ring on described first electrode terminal, the first video disc and first exhausted
Edge sealing member, described first dead ring is fixed on described first electrode terminal, the interior edge of described first video disc
Being arranged between described first insulating sealer and the first dead ring, the outer of described first video disc is arranged on institute
Stating between the first insulating sealer and cover board body, described first insulating sealer is connected to described cover board body
And in first between lead-out tablet, in described first, lead-out tablet is fixed on the medial extremity of described first electrode terminal.
14. cover plate assemblies according to claim 11, it is characterised in that described second seals structure bag
Including ecto-entad, to be sequentially sleeved at the second dead ring on described second electrode terminal, the second video disc and second exhausted
Edge sealing member, described second dead ring is fixed on described second electrode terminal, the interior edge of described second video disc
Being arranged between described second insulating sealer and the second dead ring, the outer of described second video disc is arranged on institute
Stating between the second insulating sealer and cover board body, described second insulating sealer is connected to described cover board body
And in second between lead-out tablet, in described second, lead-out tablet is fixed on the medial extremity of described second electrode terminal.
15. 1 kinds of batteries, it is characterised in that include the cover plate assembly described in claim 10-14 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620450365.9U CN205752365U (en) | 2016-05-17 | 2016-05-17 | Battery protecting apparatus, cover plate assembly and battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620450365.9U CN205752365U (en) | 2016-05-17 | 2016-05-17 | Battery protecting apparatus, cover plate assembly and battery |
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| CN205752365U true CN205752365U (en) | 2016-11-30 |
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| WO2018153155A1 (en) * | 2017-02-27 | 2018-08-30 | 比亚迪股份有限公司 | Battery cover assembly and battery |
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| CN107394101A (en) * | 2016-05-17 | 2017-11-24 | 比亚迪股份有限公司 | Battery protecting apparatus, cover plate assembly and battery |
| CN106785105A (en) * | 2016-12-23 | 2017-05-31 | 东莞威胜储能技术有限公司 | A kind of liquid metal cell and its sealed insulation device |
| WO2018153155A1 (en) * | 2017-02-27 | 2018-08-30 | 比亚迪股份有限公司 | Battery cover assembly and battery |
| CN108598298A (en) * | 2017-09-04 | 2018-09-28 | 苏州绿标新能源科技有限公司 | A kind of cap structure of power lithium-ion battery |
| CN115621580A (en) * | 2022-07-07 | 2023-01-17 | 荣耀终端有限公司 | Battery with a battery cell |
| CN115621580B (en) * | 2022-07-07 | 2023-08-18 | 荣耀终端有限公司 | Battery cell |
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