CN201402845Y - Insulating sheath of square battery and square battery with insulating sheath - Google Patents
Insulating sheath of square battery and square battery with insulating sheath Download PDFInfo
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- CN201402845Y CN201402845Y CN2009200033476U CN200920003347U CN201402845Y CN 201402845 Y CN201402845 Y CN 201402845Y CN 2009200033476 U CN2009200033476 U CN 2009200033476U CN 200920003347 U CN200920003347 U CN 200920003347U CN 201402845 Y CN201402845 Y CN 201402845Y
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- battery
- insulating sleeve
- square battery
- edge portion
- square
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- 238000000926 separation method Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- -1 polypropylene Polymers 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims 1
- 229910052744 lithium Inorganic materials 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 28
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 10
- 229910001416 lithium ion Inorganic materials 0.000 description 10
- 238000003466 welding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000012797 qualification Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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Classifications
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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
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- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The utility model provides an insulating sheath of square battery and use this insulating sheath's square battery. The insulating sheath (1) comprises a sheath top part (3) and sheath edge parts (21, 22), the sheath top part (3) is provided with a notch (4), and the sheath edge parts (21, 22) are positioned on the periphery of the sheath top part (3) and comprise at least 2 separated clamping pieces; when the insulating sheath (1) is sleeved on the upper part of the square battery (9), the separated clamping pieces are respectively clamped on a part of the side surface of the upper part of the battery (9), the sleeve top part (3) covers the upper surface of a sealing plate (8) of the battery, and a negative electrode terminal (5) of the battery is exposed from the notch (4). When the battery is charged and discharged, unsafe problems of short circuit, heating, fire and the like of the battery caused by deviation of the relative position of the battery and charging and discharging equipment can be avoided, and the safety in the transportation process is improved. Meanwhile, the insulating sheath can be repeatedly used, so that the production cost is further reduced.
Description
Technical field
The square battery that the utility model relates to a kind of insulating sleeve of square battery and has this insulating sleeve, this insulating sleeve can prevent that square battery from external short circuit taking place in discharging and recharging operation, and improves stability and the fail safe of square battery in transportation.
Background technology
Square battery in the market generally comprises square shell, hush panel, is sealed in the closed chamber that is formed by square shell and hush panel and by positive pole, negative pole and insulating paper and passes through electrode group and the electrolyte of infiltration inside this electrode group that coiling forms.Wherein, anodal by positive wire and hush panel welding, negative pole and the negative terminal welding that is positioned at the hush panel middle part and insulate with the hush panel body.Because hush panel and square shell link together by welding, the entire cell shell that has therefore formed except that the negative terminal that is positioned at the hush panel middle part is anodal battery polar form.Because this special structural form, make when square battery discharges and recharges in discharging and recharging operation, the voltage of charging/discharging apparatus or amperometric determination terminal have deviation just very easily to cause the external short circuit of battery with respect to the position of battery slightly, thereby the performance that causes battery is bad, even causes battery heating, potential safety hazard such as on fire.
For example, Fig. 1 (a) is the vertical view of aforesaid square battery, and hush panel 8 is positioned at the upper surface of square battery 9, and its two ends that are positioned at the both sides of cell widths direction are arcuation.Negative terminal 5 is positioned at the middle part of hush panel 8, and with other SI semi-insulations of hush panel 8.Near negative terminal 5, be provided with a relief valve port 11.Under the state shown in Fig. 1 (b), square battery 9 is with respect to voltage, 10 run-off the straights of amperometric determination terminal of charging/discharging apparatus, therefore, negative terminal 5 conducts via the voltage of charging/discharging apparatus, amperometric determination terminal 10 and positive terminal 6 as battery case, thereby causes the external short circuit of battery.In addition, under the state shown in Fig. 1 (c), negative terminal 5 is offset with the voltage of charging/discharging apparatus, the relative position of amperometric determination terminal 10, therefore, negative terminal 5 is that positive terminal 6 conducts with battery case, thereby also can causes the external short circuit of battery via voltage, the amperometric determination terminal 10 of charging/discharging apparatus.
Usually, in order to prevent square battery aforesaid short circuit phenomenon takes place when discharging and recharging, can on the hush panel of battery, paste a slice insulation and at the top insulating trip of the negative terminal place of battery opening.General top insulating trip dispatches from the factory as the part of battery as safety component.But the top insulating trip easily is worn, makes dirty in production process, the fail safe during in order to ensure battery charging and discharging, the insulating trip that need more renew sometimes.And some client does not need to post the battery of insulating trip, and the insulating trip of need manually tearing this moment cleans battery again.These have all increased the production cost and the working strength of workers of battery.Therefore in addition, the very thin thickness of some square battery is difficult for pasting the top insulating trip or sticking tablet comes off easily, thereby the battery that directly causes exposing generates heat when discharging and recharging, unsafe problems such as on fire.
In order to solve the external short circuit problem of battery, many schemes have been proposed in the prior art.For example; in patent documentation 1, put down in writing a kind of special tooling of column lithium ion battery; its upper surface that changes into pallet in formation device has increased by one and has changed into baffle; this upper surface that changes into baffle is provided with several circular holes, and is corresponding and be on the same axis with the circular hole on changing into pallet.Said structure makes the last probe of formation device touch the positive pole of battery by this hole and can not touch other positions of battery, and then prevent that distortion owing to last probe from touching the short circuit phenomenon that cause at other positions of battery, successfully carries out charging process.But; the problem that technique scheme exists is; this changes into baffle can keep relative fixed with the position that changes into pallet of placing battery; but each circular hole that can not guarantee to change on the baffle is corresponding exactly with the position of each battery, thereby also exists because of the improper possibility that external short circuit takes place of battery placement.
In addition, put down in writing a kind of battery cell for preventing short circuit in the patent documentation 2, a lid has been installed, covered porosely, can prevent after the installation that dust from dropping on the upper surface of storage battery, thereby prevented the leak electricity short-circuit phenomenon that causes because of the dust between the binding post at the upper surface of storage battery.But the problem of its existence is, the side of lid is located in this hole, can only prevent that therefore dust from entering and the negative or positive electrode of battery is exposed, and therefore can not be applicable to that the manufacturing of battery discharges and recharges operation.
On the other hand, the especially small-sized square battery of battery is in transportation, because volume is difficult to fix for a short time, each other collision or extruding takes place easily, also cause easily thus battery short circuit, break or phenomenon on fire, thereby have fail safe hidden danger.
To this, a kind of battery packing case is disclosed in the patent documentation 3, it comprises the body and the backboard of a side opening, and described backboard is extended to open side by a side of body and forms, and backboard is provided with slit.Described body is used to hold the battery of flexible package, and two lead-in wires of battery are respectively placed in the slit on body front side and the backboard, thereby has avoided battery storing, causing problem of short-circuit because of the both positive and negative polarity contact in the transportation.But this packing case is only applicable to the battery of flexible package, and battery integral body need be wrapped into, and therefore has problems such as it is of limited application, manufacturing cost height.In addition, because battery is tightly encased by body, in case battery generation abnormal conditions and when internal gas pressure is sharply raise, can not successfully discharge the problem that also can cause fail safes such as battery is out of shape, breaks to descend from the gas that the relief valve port of battery is released.
Patent documentation 1: Chinese utility application 200610130040.3
Patent documentation 2: Chinese utility application 200510119545.5
Patent documentation 3: Chinese utility model patent ZL03277675.6
The utility model content
The purpose of this utility model is to provide a kind of insulating sleeve of square battery, and it can prevent that battery from external short circuit taking place in discharging and recharging operation, and improves the fail safe of battery in transportation, can reduce production costs simultaneously.In addition, the purpose of this utility model also is to provide a kind of square battery that has insulating sleeve.
The insulating sleeve of square battery of the present utility model is characterised in that, comprises cover top and cover edge portion, and described cover top is provided with a breach, and described cover edge portion is positioned at the periphery at described cover top, comprises the fastener of at least 2 separation; When described insulating sleeve is enclosed within the top of described square battery, the fastener of described separation is sticked in the part of the upper side of described square battery (9) respectively, described cover top covers the upper surface of the hush panel of described square battery, the position of described breach makes negative terminal expose from this breach corresponding to the position at the negative terminal place of described square battery.
The square battery that has insulating sleeve of the present utility model is characterised in that, comprise square battery body and insulating sleeve, described insulating sleeve comprises cover top and cover edge portion, described cover edge portion is positioned at the periphery at described cover top, the fastener that comprises at least 2 separation, the fastener of described separation are sticked in the part of the upper side of described square battery (9) respectively; Described cover top covers the upper surface of the hush panel of described square battery, and is provided with a breach, and the position of described breach makes negative terminal expose from this breach corresponding to the position at the negative terminal place of described square battery.
The insulating sleeve of the square battery that provides according to the utility model, discharge and recharge in the operation when battery discharged and recharged in manufacturing, can avoid causing short circuit, heating and the unsafe problems such as on fire of battery because of the deviation of the relative position of the voltage of battery and charging/discharging apparatus or amperometric determination terminal, thereby improved the qualification rate of battery, and improved stability and the fail safe of secondary cell in transportation.Above-mentioned insulating sleeve can reuse simultaneously, has further reduced production cost.
Description of drawings
Fig. 1 discharges and recharges the view that external short circuit takes place when discharging and recharging in the operation for square battery in manufacturing.Fig. 1 (a) is the vertical view of square battery, and Fig. 1 (b) expression square battery is with respect to the state of charging/discharging apparatus run-off the straight; Fig. 1 (c) is that the state of skew takes place negative terminal and the voltage of charging/discharging apparatus, the relative position of amperometric determination terminal of square battery.
Fig. 2 is the schematic diagram of an example of the insulating sleeve of square battery of the present utility model.
Fig. 3 is the schematic diagram of insulating sleeve under user mode shown in Figure 2.
Fig. 4 is the schematic diagram of another example of the insulating sleeve of square battery of the present utility model.
Symbol description
1 insulating sleeve
21,22 cover edge portions
3 cover tops
4 breach
5 negative terminals
6 positive terminals
7 steam vents
8 hush panel
9 square batteries
The voltage of 10 charging/discharging apparatus, amperometric determination terminal
11 relief valve port
Embodiment
Below, come in conjunction with the accompanying drawings insulating sleeve of the present utility model and the execution mode that has a square battery of insulating sleeve are carried out specific description.But insulating sleeve of the present utility model and square battery are not limited to the object lesson of following explanation.
＜insulating sleeve 〉
(execution mode 1) at first describes the insulating sleeve of execution mode 1 of the present utility model with reference to Fig. 2～Fig. 3.
Fig. 2 is the schematic diagram of an example of the insulating sleeve of square battery of the present utility model.As can be seen from Figure 2, the insulating sleeve 1 of present embodiment comprises cover top 3 and cover edge portion, is provided with a breach 4 at the approximate center place at cover top 3.Wherein, the fastener of above-mentioned cover edge portion for separating comprises opposed two arcuation fasteners 21, and when this insulating sleeve 1 was enclosed within the top of square battery 9, above-mentioned two arcuation fasteners 21 were sticked in the side of two ends on the top of square battery 9 respectively.In addition, insulating sleeve 1 is set to respectively to be complementary with the thickness and the width of battery in the size of thickness direction and Width by the inner space that inner surface surrounded of cover lower surface at top 3 and arcuation fastener 21.Like this, when being enclosed within insulating sleeve 1 on the square battery 9, the top that can make insulating sleeve 1 just in time entangle battery 9, sheath and battery close as a whole, and degree of tightness is suitable.
Because above-mentioned arcuation fastener 21 is sticked in the side of two ends on the top of square battery 9 respectively, make that the position of insulating sleeve 1 and square battery 9 can relative fixed, the negative terminal 5 of battery exposes from the breach 4 at cover top reliably.Simultaneously, the cover top 3 of insulating sleeve has covered the entire upper surface except negative terminal 5 on the hush panel 8 of battery, therefore, insulated reliably between the negative terminal 5 of battery and the positive terminal 6, can prevent that square battery 9 from the possibility of external short circuit taking place, and has improved the qualification rate of battery in discharging and recharging operation.
And, because the cover edge portion of present embodiment is the arcuation fastener 21 of two separation, can guarantee to leave certain space between the hush panel of insulating sleeve and battery, when battery generation abnormal conditions and internal pressure when sharply raising, can successfully discharge from the gas that the relief valve port of battery is discharged from this gap of battery side, thereby avoid the distortion of battery or break, can further guarantee the fail safe of battery.In addition, owing to do not need to surround the whole periphery of the upper side of square battery 9, therefore can when keeping reliable engaging power, reduce the production cost of insulating sleeve.
(execution mode 2)
Secondly, with reference to Fig. 4 execution mode 2 of the present utility model is described.Fig. 4 is the schematic diagram of another example of the insulating sleeve of square battery of the present utility model.Give identical indicia for the parts identical, and omit its explanation with the battery insulation sheath of execution mode 1.
As can be seen from Figure 4, the insulating sleeve 1 of present embodiment comprises cover top 3 and cover edge portion, is provided with a breach 4 at the approximate center place at cover top 3.Wherein, cover edge portion is the fastener of separation, comprises the tabular fastener 22 of opposed pair of parallel.When this insulating sleeve 1 was enclosed within the top of square battery 9, above-mentioned two parallel tabular fasteners 22 were sticked in two upper side that are parallel to each other of described square battery respectively.In addition, insulating sleeve 1 is set to respectively to be complementary with the thickness and the width of battery in the size of thickness direction and Width by the inner space that inner surface surrounded of cover lower surface at top 3 and tabular fastener 22.Like this, when being enclosed within insulating sleeve 1 on the square battery 9, the top that can make insulating sleeve 1 just in time entangle battery 9, sheath and battery close as a whole, and degree of tightness is suitable.
Because above-mentioned two parallel tabular fasteners 22 are sticked in two parallel upper side of square battery 9 respectively, make that the position of insulating sleeve 1 and square battery 9 can relative fixed, the negative terminal 5 of battery exposes from the breach 4 at cover top reliably.Simultaneously, the cover top 3 of insulating sleeve 1 has covered the entire upper surface except negative terminal 5 on the hush panel 8 of battery, therefore, insulated reliably between the negative terminal 5 of battery and the positive terminal 6, can prevent that square battery 9 from the possibility of external short circuit taking place, and has improved the qualification rate of battery in discharging and recharging operation.
And, because the cover edge portion of present embodiment is the tabular fastener 23 of two separation, can guarantee to leave certain space between the hush panel of insulating sleeve and battery, when battery generation abnormal conditions and internal pressure when sharply raising, can successfully discharge from the gas that the relief valve port of battery is discharged from this gap of battery side, thereby avoid the distortion of battery or break, can further guarantee the fail safe of battery.In addition, owing to do not need to surround the whole periphery of the upper side of battery, therefore can when keeping reliable engaging power, reduce the production cost of insulating sleeve.
And then, because two ends of battery can be stretched out between above-mentioned two parallel tabular fasteners 23, therefore, no matter how are the width of battery and end shape, as long as the thickness of battery is suitable, the insulating sleeve 1 of present embodiment just can be fixed in the top of battery reliably by tabular fastener 23, therefore goes for multiple dissimilar square battery with suitable thickness.
More than be illustrated by the concrete form of each execution mode cell sheath of the present utility model.But sheath of the present utility model is not limited to above-mentioned concrete form, also the structural element of above-mentioned disclosed cell sheath can be carried out suitable combination.In addition, the arcuation fastener in the execution mode 1 is bending arc shape not necessarily also, as long as can be fastened on the end of battery, can be arbitrary shape, for example is square brackets shape, " " " " shape or the like.And, as long as cover edge portion has certain height, can be fastened on the battery side, also can be arbitrary shape, for example be edge, its underpart is zigzag or wavy shape etc.
Number to the described separator card component that constitutes described cover edge portion is not done special restriction, as long as can make cover edge portion be fastened on the battery side.But from saving production cost and keeping engaging reliably the angle of power, be preferably 2～6, more preferably 2～4, most preferably be opposed a pair of engaging part.
In above-mentioned all execution modes, cover top 3 can also possess a steam vent 7 (not shown), and the position of this steam vent 7 is corresponding to the relief valve port on the hush panel 8 of being positioned at of square battery 9.Like this, under some abnormal conditions, when battery generation internal short-circuit and air pressure when too high, the gas of inside battery can further be discharged from this steam vent 7 via relief valve port, the fail safe that can improve battery thus more.
For the material that constitutes insulating sleeve, so long as have certain intensity and flexible insulating properties macromolecular material is just passable, have no particular limits, but preferably constitute, especially preferably constitute by polypropylene material by any material that is selected from polyurethane, polypropylene, polyethylene, polyamide and the polyimides.Because above-mentioned material has good insulation performance and certain intensity, the resistance to wear of insulating sleeve is better, can repeat to utilize again, thereby reduce the production cost of insulating sleeve.
In addition, the wall thickness of the cover edge portion of insulating sleeve 1 is preferably 0.5～5.0mm, more preferably 0.8～3.0mm, more preferably 1.0～2.0mm.Because cover edge portion has certain wall thickness, makes and leaves a fixed gap between the adjacent square battery that has insulating sleeve.In the process of the above-mentioned battery of transportation, have and can not be in contact with one another between the battery of insulating sleeve and be short-circuited, even collision has perhaps taken place each other, also the constituent material because of cover edge portion possesses certain buffer capacity, can avoid that battery breaks, phenomenon such as on fire, thereby improve stability and the fail safe of battery in transportation.
The height of the cover edge portion of insulating sleeve of the present utility model can equate with the height of battery, but from taking into account the angle that possesses reliable engaging power and save the sheath production cost, the height of cover edge portion is preferably 5%～50% with respect to the ratio of cell height, more preferably 10%～40%, more preferably 15～30%.For small-sized square battery commonly used, the cover edge portion of the insulating sleeve that is suitable for highly is preferably 3mm～15mm, more preferably 5mm～10mm.
In addition, in insulating sleeve of the present utility model, preferred described cover top and described cover edge portion are integrated, but the cover top also can with cover edge portion between be connected with any-modes such as bonding, riveted joints.
＜have a square battery of insulating sleeve 〉
Square battery of the present utility model is the square battery that has dismantled and assembled special isolation sheath freely.Wherein, the square battery body comprise square shell, hush panel, the electrode group that forms by reeling by positive pole and negative pole and insulating paper and soak into electrolyte inside this electrode group.Described hush panel and described square shell link together by welding, described electrode group is sealed in the closed chamber that is formed by square shell and hush panel, described positive pole is by positive wire and hush panel welding, described negative pole and negative terminal welding, this negative terminal is positioned at the approximate central part of hush panel and insulate with the hush panel body.For example shown in Fig. 1 (a), the approximate center place on hush panel 8 is provided with negative terminal 5 to the top vertical view of above-mentioned battery body (following also abbreviate as sometimes " battery "), can also be provided with relief valve port 11 near negative terminal.
The insulating sleeve of the present utility model 1 that is enclosed within on the battery body can possess above-described any structural form, comprise cover top 3 and cover edge portion, cover edge portion is positioned at the periphery at described cover top 1, the fastener that comprises at least 2 separation, the fastener of described separation are sticked in the part of the upper side of described square battery (9) respectively; Cover top 3 covers the upper surface of the hush panel 8 of square battery 9, and is provided with a breach 4 at approximate central part, and this breach 4 makes negative terminal 5 expose from this breach 4 corresponding to the position at negative terminal 5 places of described square battery 9.
Below, to using insulating sleeve of the present utility model the method that battery discharges and recharges is introduced.At first, the insulating sleeve of above-mentioned special use is enclosed within the top of battery, and it is as a whole that sheath and battery are closed, and the negative terminal of battery is exposed from the indentation, there at the cover top of insulating sleeve, simultaneously, the cover top has covered the entire upper surface except negative terminal of the hush panel of battery.Then, the battery that has insulating sleeve that assembles like this be placed on the charge-discharge machine discharge and recharge, discharge and recharge finish after, before battery shipment packing, take off insulating sleeve, the insulating sleeve that takes off can be reused.Above-mentioned discharging and recharging can be carried out on the charge-discharge machine of single battery charging and discharging, in the battery tray of also battery can being packed into, carries out on the pellet type charge-discharge machine.Battery of the present utility model greatly reduces in the possibility that discharges and recharges operation generation external short circuit owing to possess above-mentioned insulating sleeve.
Battery of the present utility model discharges and recharges in the operation above-mentioned, by using above-mentioned insulating sleeve, can not cause short circuit, heating and the unsafe problems such as on fire of battery because of the deviation of the relative position of the voltage determination terminal of battery or charging/discharging apparatus and current terminal with the voltage determination terminal of the charging/discharging apparatus of battery cathode termination contact and current terminal, improve the qualification rate of battery greatly, and improved stability and the fail safe of secondary cell in transportation.Above-mentioned insulating sleeve can reuse simultaneously, has further reduced production cost.
Embodiment
As square battery, prepared lithium ion battery CGA632750.Its size specification is: cell thickness is 6.3mm, and width is 27mm, highly is 50mm.
In addition, prepared the special isolation sheath of above-mentioned lithium ion battery CGA632750, its basic comprising raw material are insulating resins, and material is polypropylene (abbreviating PP as).The shape of insulating sleeve is overlapped a pair of arcuation engaging part of edge portion for separating as shown in Figure 2, and the wall thickness of cover edge portion is 1mm, and the thickness direction of its inner space is 6.3mm, and the Width of inner space is 27.1mm, and the short transverse of inner space is 9mm.Like this, when being enclosed within insulating sleeve on the battery, the top that can make insulating sleeve just in time entangle battery, sheath and battery close as a whole, and degree of tightness is suitable.
Below, the step that discharges and recharges operation of lithium ion battery CGA632750 is introduced.
At first, to put into battery charge and discharge box by the complete lithium ion battery CGA632750 of device assembles, put above-mentioned special-purpose sheath to battery, again this battery charge and discharge box is put into charging/discharging apparatus, make the terminal (electric current, voltage terminal) that discharges and recharges in the charging/discharging apparatus contact and discharge and recharge with the lithium ion battery CGA632750 that has insulating sleeve.After discharging and recharging end, the fail safe of the square battery in the whole charging and discharging operation is estimated.
Owing to have insulating sleeve, avoided the terminal of charging/discharging apparatus partly to contact, thereby made the external short circuit, heating of lithium ion battery CGA632750 and the incidence of dangerous phenomenon such as on fire reduce to 0 with the hush panel of lithium ion battery is promptly anodal.Simultaneously owing to have insulating sleeve, lithium ion battery is toppled in handling process and is caused that short circuit causes battery to be out of shape or the phenomenon of breaking etc. also reduces to 0.
Insulating sleeve of the present utility model goes for all batteries, wherein preferably is applicable to especially preferably to be applicable to small lithium ion secondary batteries by secondary cell.In addition, introduced its employed insulating sleeve though this specification is example with the square battery, insulating sleeve of the present utility model is through also going for the battery of other shapes after suitably being out of shape, as cylindrical battery, platypelloid type battery etc.
More than execution mode of the present utility model is had been described in detail, certainly the utility model is not limited to above-mentioned concrete example.Those skilled in the art can expect various distortion or modification in the record category of accompanying Claim book, these variation and modification also belong to protection range of the present utility model certainly.
Claims (10)
1, a kind of insulating sleeve of square battery is characterized in that, described insulating sleeve (1) comprises cover top (3) and cover edge portion (21,22), described cover top is provided with a breach (4), described cover edge portion (21,22) be positioned at the periphery at described cover top (3), comprise the fastener of at least 2 separation;
When described insulating sleeve (1) is enclosed within the top of described square battery (9), the fastener of described separation is sticked in the part of the upper side of described square battery (9) respectively, described cover top (3) covers the upper surface of the hush panel (8) of described square battery, described breach (4) makes negative terminal (5) expose from this breach (4) corresponding to the position at negative terminal (5) place of described square battery.
2, insulating sleeve according to claim 1, it is characterized in that, described cover edge portion is opposed two arcuation fasteners (21), when described insulating sleeve (1) was enclosed within the top of described square battery (9), described two arcuation fasteners (21) were sticked in the side of two ends on described square battery (9) top respectively.
3, insulating sleeve according to claim 1, it is characterized in that, described cover edge portion is the tabular fastener (22) of opposed pair of parallel, when described insulating sleeve (1) was enclosed within the top of described square battery (9), described two tabular fasteners (22) were sticked in two parallel sides on described square battery (9) top respectively.
According to each described insulating sleeve in the claim 1～3, it is characterized in that 4, described cover top (3) is integrated with described cover edge portion (21,22).
5, according to each described insulating sleeve in the claim 1～3, it is characterized in that, described cover top (3) also possesses a steam vent (7), and the position of this steam vent (7) is corresponding to the position at relief valve port (11) place on the hush panel (8) of described square battery (9).
According to each described insulating sleeve in the claim 1～3, it is characterized in that 6, the material that constitutes described insulating sleeve (1) is any material that is selected from polyurethane, polypropylene, polyethylene, polyamide and the polyimides.
According to each described insulating sleeve in the claim 1～3, it is characterized in that 7, described square battery (9) is a lithium rechargeable battery.
According to each described insulating sleeve in the claim 1～3, it is characterized in that 8, the wall thickness of described cover edge portion (21,22) is 0.5～5.0mm.
According to each described insulating sleeve in the claim 1～3, it is characterized in that 9, the height of described cover edge portion (21,22) is 5%～50% with respect to the ratio of the height of described square battery (9).
10, a kind of square battery that has insulating sleeve, it comprises each described insulating sleeve in square battery body and the claim 1～9, it is characterized in that, described insulating sleeve (1) comprises cover top (3) and cover edge portion (21,22), described cover edge portion (21,22) is positioned at the periphery at described cover top (3), the fastener that comprises at least 2 separation, the fastener of described separation are sticked in the part of the upper side of described square battery (9) respectively; Described cover top (3) covers the upper surface of the hush panel (8) of described square battery (9), and be provided with a breach (4), the position of described breach (4) makes negative terminal (5) expose from this breach (4) corresponding to the position at negative terminal (5) place of described square battery (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200033476U CN201402845Y (en) | 2009-01-23 | 2009-01-23 | Insulating sheath of square battery and square battery with insulating sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200033476U CN201402845Y (en) | 2009-01-23 | 2009-01-23 | Insulating sheath of square battery and square battery with insulating sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201402845Y true CN201402845Y (en) | 2010-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200033476U Expired - Lifetime CN201402845Y (en) | 2009-01-23 | 2009-01-23 | Insulating sheath of square battery and square battery with insulating sheath |
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| Country | Link |
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| CN (1) | CN201402845Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315396A (en) * | 2011-08-08 | 2012-01-11 | 佛山市顺德区精进能源有限公司 | Structure of lithium ion battery module |
| CN103367660A (en) * | 2012-03-29 | 2013-10-23 | 三星Sdi株式会社 | Rechargeable battery |
| US9012060B2 (en) | 2012-12-26 | 2015-04-21 | General Electric Company | System and method for battery insulation |
| CN107184153A (en) * | 2016-03-14 | 2017-09-22 | 东莞市吉欧特环保科技有限公司 | Vacuum cleaner |
| CN108054423A (en) * | 2018-01-12 | 2018-05-18 | 漳州万宝能源科技有限公司 | A kind of poly-lithium battery |
| WO2023133788A1 (en) * | 2022-01-14 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electronic device, and method and apparatus for preparing battery cell |
-
2009
- 2009-01-23 CN CN2009200033476U patent/CN201402845Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315396A (en) * | 2011-08-08 | 2012-01-11 | 佛山市顺德区精进能源有限公司 | Structure of lithium ion battery module |
| CN102315396B (en) * | 2011-08-08 | 2014-12-03 | 佛山市顺德区精进能源有限公司 | Structure of lithium ion battery module |
| CN103367660A (en) * | 2012-03-29 | 2013-10-23 | 三星Sdi株式会社 | Rechargeable battery |
| US9012060B2 (en) | 2012-12-26 | 2015-04-21 | General Electric Company | System and method for battery insulation |
| CN107184153A (en) * | 2016-03-14 | 2017-09-22 | 东莞市吉欧特环保科技有限公司 | Vacuum cleaner |
| CN108054423A (en) * | 2018-01-12 | 2018-05-18 | 漳州万宝能源科技有限公司 | A kind of poly-lithium battery |
| WO2023133788A1 (en) * | 2022-01-14 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electronic device, and method and apparatus for preparing battery cell |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20100210 |
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| CX01 | Expiry of patent term |