CN201927646U - Nut cap for battery and battery using same - Google Patents
Nut cap for battery and battery using same Download PDFInfo
- Publication number
- CN201927646U CN201927646U CN2011200245725U CN201120024572U CN201927646U CN 201927646 U CN201927646 U CN 201927646U CN 2011200245725 U CN2011200245725 U CN 2011200245725U CN 201120024572 U CN201120024572 U CN 201120024572U CN 201927646 U CN201927646 U CN 201927646U
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- circular
- arc
- orifice plate
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
The utility model relates to a nut cap for a battery and a battery provided with the nut cap for the battery, which ensures that an area for melting is as large as possible in the limited area and the interval of thin parts is as short as possible in the diameter direction; the nut cap for the battery is provided with a diaphragm and a pore plate, wherein the diaphragm is split when the pressure is too high and the pore plate is melt with the diaphragm; the diaphragm is electrically connected with the pore plate through the a melting part; the nut cap for the battery is characterized in that the pore plate is provided with a circular area for melting, a plurality of arc opening parts and a plurality of arc thin parts, wherein the circular area for melting is used for forming the melting part, the arc opening parts are adjacent to the outside of the area for melting in the radius direction, and the arc thin parts are respectively connected with edge parts of two adjacent arc opening parts in the circumferential direction; when an inner pressure acted on the diaphragm reaches a specified value, the arc thin parts are torn to lose electric connection; therefore, the nut cap for the battery guarantees the melting intensity of the diaphragm of a product and the pore plate, reduces the influences caused by the deviation of melting operation and ensures the stable electric cut-off effect of the product.
Description
Technical field
The utility model relates to a kind of battery with blocking a shot and using the battery of this battery with block.
Background technology
In recent years, as the power supply of e-machine, secondary cell has obtained using widely.As the representative of secondary cell, comprising types such as plumbous secondary cell, nickel-hydrogen secondary cell, lithium secondary batteries.Lithium secondary battery particularly, because it has good driving voltage and unit energy density, the related development research of lithium secondary battery is more noticeable.
But above-mentioned secondary cell adopts the battery structure of hermetic type usually, when unusual chemical reaction takes place the electricity generation material that is housed in inside battery, causes that the structure of this hermetic type can cause the blast and the burning of battery usually when inner pressure of battery raise.For example, when secondary cell overcharges or during short circuit, the abnormal gas that inside battery produces makes inner pressure of battery excessive, will cause cell fracture or damage in this case, can cause the damage of the machine that uses this battery simultaneously.
Because therefore above problem solves, prevents this problem, reduces the application risk of secondary cell, most important for the practicability of secondary cell.In order to realize the purpose of secondary cell safe handling, developed the enclosed-type battery of safety device up to now with various forms.Wherein, as a kind of form of the safety device of secondary cell, battery as shown in Figure 10 and Figure 11 is applied in practice with the structure of block.
Figure 10 is the cutaway view of existing battery with block, and Figure 11 constitutes the rearview of battery shown in Figure 10 with the orifice plate of block.
As shown in Figure 10 and Figure 11, battery comprises cover plate 81, diaphragm 82, insulator 83, orifice plate 84 and the sealing ring 85 of upper and lower settings successively with block 80.Sealing ring 85 is used to keep cover plate 81, diaphragm 20, insulator 83 and orifice plate 84, and the periphery of cover plate 81, diaphragm 20, insulator 83 and orifice plate 84 is closely contacted.Orifice plate 84 is provided with pair of openings portion 90, a pair of unfertile land portion 91 and is surrounded the regional M of the dimetric welding that is used to form weld portion by peristome 90 and unfertile land portion 91.Diaphragm 82 and orifice plate 84 are fixed by weld portion, realize being electrically connected.When battery overcharge or short circuit, inside battery produces abnormal gas, and the pressure of this gas surpasses setting constantly, and the pressure of gas causes diaphragm 82 to produce distortion, thereby the unfertile land portion 91 on the orifice plate 84 is torn, and loses to be electrically connected.
Battery with said structure has been realized reducing the purpose of battery application risk with block to a certain extent, but following problem is arranged.Usually, on orifice plate, have certain diameter, be roughly circular orifice plate core and be used to form welding with zone, peristome and unfertile land portion.And because the requirement of product size, the area of above-mentioned orifice plate core is limited by strictness.In order to ensure the heat seal strength of diaphragm and orifice plate, when carrying out the welding of diaphragm and orifice plate,, also can guarantee the finished product rate simultaneously even the correct relatively posetionof weld of weld portion has certain deviation, need make the welding of orifice plate big as much as possible with the zone.And on the other hand, on guaranteeing that welding is with enough big basis, zone, need make unfertile land portion short as much as possible at diametric interval, thereby guarantee stable electric cut-out effect.Shown in Figure 11 has on the orifice plate core of regulation area, is surrounded by peristome and unfertile land portion and is roughly the regional M of rectangle welding, does not enough utilize the orifice plate core fully.When shortening unfertile land portion at diametric interval, welding diminishes with regional M.In this case, heat seal strength can not get guaranteeing that when the unusual gas of inside battery generation did not reach setting, the weld portion of diaphragm and orifice plate had the possibility that comes off.Because the deviation that may occur is operated in welding, and weld portion may be overlapped with the position of peristome or unfertile land portion, cause heat seal strength reduction or unfertile land portion to be broken in addition.And when increasing as the rectangle welding with the length of side of the peristome on the both sides of regional M, unfertile land portion becomes greatly at diametric interval.In this case, when the unusual gas of inside battery generation reaches setting, it is elongated to the time interval that the unfertile land portion of opposite side is torn that the unfertile land portion of one side is torn the back, and it is should the time interval indefinite, therefore can not obtain gratifying stable electric cut-out effect, cause the deviation of product quality.
The utility model content
The utility model is in view of above-mentioned situation, the problem that solves provide a kind of on limited area, guarantee welding with the zone big as far as possible in, realize the battery block that unfertile land portion is short as much as possible at diametric interval, and a kind of battery with described battery with block is provided as battery safety device.The battery of this kind structure has been guaranteed the diaphragm of product and the heat seal strength of orifice plate with block, reduces the influence that welding operation deviation causes, and guarantees the stable electric cut-out effect of product simultaneously.
In order to reach above-mentioned purpose, realize above-mentioned effect, battery of the present utility model is with blocking a shot, have: the diaphragm that breaks when airtight pressure inside is too high with the described diaphragm orifice plate of welding mutually, described diaphragm and described orifice plate are electrically connected by weld portion, are provided with on described orifice plate: the circular welding that is used to form described weld portion is with regional; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively, act on when pressure inside reaches setting on the described diaphragm, described circular-arc unfertile land portion is torn, and loses to be electrically connected.
In addition, other batteries of the present utility model are on the basis of above-mentioned utility model with block, and described circular-arc peristome and described circular-arc unfertile land portion respectively are 2.
In addition, other batteries of the present utility model are on the basis of above-mentioned utility model with block, and described diaphragm is formed by aluminium, and its thickness is below the above 0.30mm of 0.20mm.
In addition, other batteries of the present utility model are on the basis of above-mentioned utility model with block, be provided with between described diaphragm and the described orifice plate and stop the two insulated ring that is electrically connected, face relative with described orifice plate on the described diaphragm is provided with a plurality of alignment pins, on the described insulated ring and the contact-making surface of described diaphragm be provided with cannelure with described alignment pin tabling.
In addition, other batteries of the present utility model are on the basis of above-mentioned utility model with block, and described circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with described diaphragm on the described orifice plate.
In addition, other batteries of the present utility model are on the basis of above-mentioned utility model with block, and described 2 circular-arc unfertile land portions are below the above 2.4mm of 2.0mm at diametric spacing distance each other.
In addition, other batteries of the present utility model are on the basis of above-mentioned utility model with block, have and be arranged between described diaphragm and the described orifice plate, stop the two insulated ring that is electrically connected and sealing ring, when described sealing ring is used to keep described diaphragm and battery assembling as the block parts of lid, described sealing ring and described insulated ring have respectively to opposite one of described block parts side-prominent handguard portion, and the height of described separately handguard portion is identical.
In addition, other batteries of the present utility model are on the basis of above-mentioned utility model with block, and described sealing ring separates setting with described insulated ring.
In addition, other batteries of the present utility model are on the basis of above-mentioned utility model with block, block parts as lid during the battery assembling have exhaust outlet and the cutting blade that is configured in described exhaust ports, described diaphragm is provided with ring-type unfertile land portion, the above cell internal pressure of setting causes when described diaphragm constantly expands, and described cutting blade cuts described ring-type unfertile land portion.
In addition, other batteries of the present utility model are on the basis of above-mentioned utility model with block, are provided with annular projection with contacted of described diaphragm on the described sealing ring.
In addition, other batteries of the present utility model have: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm, described diaphragm and described orifice plate are electrically connected by weld portion, in described hole. and be provided with on the plate: the circular welding that is used to form described weld portion is with the zone; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively, face relative with described orifice plate on the described diaphragm is provided with a plurality of alignment pins, on the described insulated ring and the contact-making surface of described diaphragm be provided with cannelure with described alignment pin tabling, described circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with described diaphragm on the described orifice plate, described sealing ring and described insulated ring have respectively to opposite one of described block parts side-prominent handguard portion, the height of described separately handguard portion is identical, described block parts have exhaust outlet and are configured in the cutting blade of described exhaust ports, described diaphragm is provided with ring-type unfertile land portion, the above cell internal pressure of setting causes when described diaphragm constantly expands, and described cutting blade cuts described ring-type unfertile land portion.
In addition, other batteries of the present utility model have: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm, described diaphragm and described orifice plate are electrically connected by weld portion, are provided with on described orifice plate: the circular welding that is used to form described weld portion is with the zone; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively, face relative with described orifice plate on the described diaphragm is provided with a plurality of alignment pins, on the described insulated ring and the contact-making surface of described diaphragm be provided with cannelure with described alignment pin tabling, described circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with described diaphragm on the described orifice plate.
In addition, other batteries of the present utility model have: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm, described diaphragm and described orifice plate are electrically connected by weld portion, are provided with on described orifice plate: the circular welding that is used to form described weld portion is with the zone; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively, face relative with described orifice plate on the described diaphragm is provided with a plurality of alignment pins, on the described insulated ring and the contact-making surface of described diaphragm be provided with cannelure with described alignment pin tabling, described sealing ring and described insulated ring have respectively to opposite one of described block parts side-prominent handguard portion, and the height of described separately handguard portion is identical.
In addition, other batteries of the present utility model have: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm, described diaphragm and described orifice plate are electrically connected by weld portion, are provided with on described orifice plate: the circular welding that is used to form described weld portion is with the zone; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively, face relative with described orifice plate on the described diaphragm is provided with a plurality of alignment pins, on the described insulated ring and the contact-making surface of described diaphragm be provided with cannelure with described alignment pin tabling, described block parts have exhaust outlet and are configured in the cutting blade of described exhaust ports, described diaphragm is provided with ring-type unfertile land portion, the above cell internal pressure of setting causes when described diaphragm constantly expands, and described cutting blade cuts described ring-type unfertile land portion.
In addition, other batteries of the present utility model have: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm, described diaphragm and described orifice plate are electrically connected by weld portion, are provided with on described orifice plate: the circular welding that is used to form described weld portion is with the zone; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively, described circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with described diaphragm on the described orifice plate, described sealing ring and described insulated ring have respectively to opposite one of described block parts side-prominent handguard portion, and the height of described separately handguard portion is identical.
In addition, other batteries of the present utility model have: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm, described diaphragm and described orifice plate are electrically connected by weld portion, are provided with on described orifice plate: the circular welding that is used to form described weld portion is with the zone; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively, described circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with described diaphragm on the described orifice plate, described block parts have exhaust outlet and are configured in the cutting blade of described exhaust ports, described diaphragm is provided with ring-type unfertile land portion, the above cell internal pressure of setting causes when described diaphragm constantly expands, and described cutting blade cuts described ring-type unfertile land portion.
In addition, other batteries of the present utility model have: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm, described diaphragm and described orifice plate are electrically connected by weld portion, are provided with on described orifice plate: the circular welding that is used to form described weld portion is with the zone; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively, described sealing ring and described insulated ring have respectively to opposite one of described block parts side-prominent handguard portion, the height of described separately handguard portion is identical, described block parts have exhaust outlet and are configured in the cutting blade of described exhaust ports, described diaphragm is provided with ring-type unfertile land portion, the above cell internal pressure of setting causes when described diaphragm constantly expands, and described cutting blade cuts described ring-type unfertile land portion.
In addition, other batteries of the present utility model are on the basis of any described battery of claim 11 to 17 with block with block, and described circular-arc peristome and described circular-arc unfertile land portion respectively are 2.
In addition, other batteries of the present utility model have as any described battery of claim 1 to 18 with blocking a shot.
Description of drawings
Fig. 1 is the front view of battery of the present utility model with block.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the rearview of battery of the present utility model with block.
Fig. 4 is the rearview of battery of the present utility model with the diaphragm of block.
Fig. 5 is the B-B cutaway view of Fig. 4.
Fig. 6 is the rearview of battery of the present utility model with the orifice plate of block.
Fig. 7 is the C-C cutaway view of Fig. 6.
Fig. 8 is the cutaway view of battery of the present utility model with the insulated ring of block.
Fig. 9 is the cutaway view of battery of the present utility model with the sealing ring of block.
Figure 10 is the cutaway view of existing battery with block.
Figure 11 is for constituting the rearview of battery shown in Figure 10 with the orifice plate of block.
Symbol description
10 block parts
18 ring plates
20 diaphragms
25 alignment pins
26 ring-type unfertile land portions
30 orifice plates
31 circular-arc peristomes
32 circular-arc unfertile land portions
50 sealing rings
51 annular projections
60 insulated rings
62 cannelures
The circular welding of S is with regional
Embodiment
Below, the battery that the utility model is related to reference to accompanying drawing is with block and use this battery to be described in detail with the various suitable execution mode of the battery of blocking a shot.
(embodiment)
Fig. 1 is the front view of battery of the present utility model with block.Fig. 2 is the A-A cutaway view of Fig. 1.Fig. 3 is the rearview of battery of the present utility model with block.
As Figure 1-3, the battery of present embodiment 1 comprises with block: the block parts 10 of upper and lower settings, ring plate 18, diaphragm 20, orifice plate 30 and sealing ring 50 successively.Sealing ring 50 is used for keeping block parts 10, ring plate 18 and diaphragm 20, and the periphery of block parts 10, ring plate 18 and diaphragm 20 is closely contacted.Have in the inboard of sealing ring 50 and to be arranged between diaphragm 20 and the orifice plate 30, to stop the two insulated ring that is electrically connected 60.
Described exhaust outlet 12 be that the form that the edge part in the radial direction outside in the center of circle becomes cutting blade 13 serves as preferred with jut 11 centers, when battery is too high with the airtight pressure inside of block, cutting blade 13 can cut diaphragm, to prevent the danger of cell fracture or blast.
The material of ring plate 18 is preferably the PTC element.By the ring plate 18 that the PTC element constitutes is set, when having served as current flowing, ring plate 18 can be passed through to increase the resistance drop low current at short notice, thereby plays the effect that reduces the battery application risk to a certain extent.But,, ring plate 18 can be set according to actual design, the performance requirement of product.
Fig. 4 is the rearview of diaphragm 20.Fig. 5 is the B-B cutaway view of Fig. 4.
Shown in Fig. 4,5, the central authorities of diaphragm 20 have lug boss 21, and lug boss 21 forms by welding with aftermentioned orifice plate 30 and is electrically connected.The material of diaphragm 20 does not limit, and can reach the purpose of this utility model and get final product, and preferably to be formed by aluminum, its thickness is preferably below the above 0.30mm of 0.20mm.
In addition, preferably on the relative face of described diaphragm 20 and orifice plate 30, alignment pin 25 is set.Compare with the form that alignment pin 25 is not set, by alignment pin 25 is set, simultaneously at the cannelure 62 that is provided with on the insulated ring 60 described later and on the contact-making surface of described diaphragm 30 with described alignment pin 25 tablings, when assembly operation, can locate orifice plate 30 easily, thereby guarantee to obtain gratifying stable electric cut-out effect.Alignment pin 25 is positioned at the outside of lug boss 21 radial directions.The form of alignment pin 25 does not limit, can play positioning action gets final product, its configuration can be to be the ring-type in the center of circle with diaphragm 20 centers, also can be to be a plurality of in a circumferential direction suitable distributions in the center of circle with diaphragm 20 centers, being good evenly, its number can suitably be provided with according to designing requirement, is preferably 6-10, most preferably is 8.
In addition, preferably on diaphragm 20, be provided with ring-type unfertile land portion 26.Ring-type unfertile land portion 26 is arranged on the roughly corresponding position of edge part that becomes the exhaust outlet 12 of cutting blade 13 on the inner periphery of described diaphragm 20 and ring plate 18 or the parts 10 of blocking a shot.Ring-type unfertile land portion 26 is formed by known method, and its form is good with V-notch.By ring-type unfertile land portion 26 is set, cell internal pressure more than setting causes when described diaphragm constantly expands, and can make diaphragm 20 easily by ring plate 18, or non-cutting blade 13 when ring plate 18 is set cuts, thereby abnormal gas is discharged internally, reach the effect of the safety that reduces pressure.
Fig. 6 is the rearview of orifice plate 30.Fig. 7 is the C-C cutaway view of Fig. 6.
Shown in Fig. 6,7, the circular welding that orifice plate 30 has the weld portion of being used to form with region S, in welding with adjacent a plurality of circular-arc peristome 31 in the radial direction outside of region S and a plurality of circular-arc unfertile land portion 32, described circular-arc unfertile land portion 32 connects the edge part of 2 adjacent described circular-arc peristomes 31 in a circumferential direction respectively.Orifice plate 30 is electrically connected with the weld portion and the diaphragm 20 of region S by being formed at circular welding.When the abnormal gas by circular-arc peristome 31 acts on pressure on the diaphragm 20 when reaching setting, the lug boss 21 counter steers top distortion of the central authorities of diaphragm 20, under the effect of shearing force, circular-arc unfertile land portion 32 is torn.The part that circular-arc peristome 31 and circular-arc unfertile land portion 32 are surrounded breaks away from orifice plate 30 together with the lug boss 21 of the central authorities of diaphragm 20.Thereby make current interruptions by the weld portion conducting.Circular-arc peristome 31 and circular-arc unfertile land portion 32 evenly are provided with along circumference, and its number is to be provided with two respectively for good.Circular-arc unfertile land portion 32 with on the face that is arranged on a relative side with 20 diaphragms on the orifice plate 30 for good, its form is preferably V-notch.The circular-arc unfertile land portion 32 of V-notch form is arranged on the face of a relative side with 20 diaphragms on the orifice plate 30 and is more conducive to obtain gratifying stable electric cut-out effect.Scope below the above 2.4mm is good with 2.0mm at diametric spacing distance each other in 2 circular-arc unfertile land portions 32, circular-arc unfertile land portion 32 with this number range can reduce the tearing the time interval of priority of circular-arc unfertile land portion 32, improves the stability of electric cut-out effect.On the orifice plate 30 in the radial direction outside of circular-arc peristome 31 and circular-arc unfertile land portion 32, for improve abnormal gas to battery with the inner transmission of block, can relative set air vent hole 35, air vent hole 35 can evenly be provided with along circumference, its number can rationally be provided with, and is preferably 4.Have above-mentioned form orifice plate 30 can guarantee welding with the zone big as far as possible in, realize that unfertile land portion is short as much as possible at diametric interval, effective and reasonable utilization can be used to form the limited orifice plate core of area of weld portion.Battery with orifice plate of this kind structure has been guaranteed the diaphragm of product and the heat seal strength of orifice plate with block, reduces the influence that welding operation deviation causes, and guarantees the stable electric cut-out effect of product simultaneously.
Fig. 8 is the cutaway view of insulated ring 60.As shown in Figure 8, insulated ring 60 has handguard portion 61 and cannelure 62, and its section is inverted L shape.Handguard portion 61 is the form to inside battery one side-prominent setting.Cannelure 62 be arranged on the insulated ring 60 and the contact-making surface of diaphragm 20 on, with aforementioned alignment pin 25 tablings.By the tabling of cannelure 62, when assembly operation, can locate orifice plate 30 easily, thereby guarantee to obtain gratifying stable electric cut-out effect with alignment pin 25.In addition, to be provided with to the outstanding protuberance 63 of inside circumference to good, by the setting of protuberance 63, after orifice plate 30 being pressed into the cannelure that handguard portion 61 constitutes, protuberance 63 can be stablized and keeps orifice plate 30, prevents that it from coming off at the edge part of handguard portion 61.
Fig. 9 is the cutaway view of sealing ring 50.As shown in Figure 9, sealing ring 50 is used for keeping block parts 10, ring plate 18 and diaphragm 20, and the periphery of block parts 10, ring plate 18 and diaphragm 20 is closely contacted.Sealing ring 50 preferably has to the inside battery one side-prominent form that handguard portion 51 is set.Preferably be provided with annular projection 51 on the sealing ring 50 with on contacted of the diaphragm.Annular projection 51 is set, can strengthens the sealing of 20 on sealing ring 50 and diaphragm, and prevent the contingent leakage of inside battery liquid.
Sealing ring 50 and insulated ring 60 preferable separate settings.In the assembly operation process, owing to the separate setting of sealing ring 50,, can not make insulated ring 60 to the inside circumference extruding even sealing ring 50 is out of shape by external compression with insulated ring 60 yet, therefore can improve the product percent of pass that battery is installed.
In addition, when sealing ring 50 preferably had the form of handguard portion 51, the handguard portion 51 of preferred sealing ring 50 was identical to the height of inside battery one side-prominent part with the handguard portion 61 of insulated ring 60.Because handguard portion 51 is identical to the height of inside battery one side-prominent part with handguard portion 61, can effectively suppress the inside battery component part, the for example displacement that produces because of external force such as electrode part, consequently, can prevent because of inside battery component part and orifice plate 30 bumps against the damage of orifice plate 30 cores that cause, thereby the stability that can prevent electric cut-out effect reduces.
Have the battery of the battery of above-mentioned form, can obtain stable electric cut-out effect, therefore can effectively prevent the generation of phenomenons such as battery explosion and burning with block.
Below to this battery with the block the effect of playing describe.This battery has triphasic function with block.
Phase I.When excessive current flowing, the ring plate that the PCT element constitutes reaches its reaction temperature at short notice, and then the resistance increase, causes super-high-current significantly to reduce.Therefore can prevent because the battery that external short circuit or misuse super-high-current cause damages.
Second stage.For lithium secondary battery,, battery charger failure overcharges or during reversed charge, even without the kinetic current that reaches above-mentioned PCT element, inner pressure of battery rises and also happens occasionally because causing.In this case, along with the decomposition of electrolyte and active material, battery temperature sharply rises, and produces a large amount of abnormal gas, thereby causes and catch fire or explode.This moment, this battery was had an effect with the function of the second stage of block, prevented the generation of this phenomenon.That is, when inner pressure of battery surpassed the pressure of regulation, pressure passed to diaphragm by circular-arc peristome, the lug boss counter steer top distortion of the central authorities of diaphragm.Therefore, under the effect of shearing force, the circular-arc unfertile land portion of orifice plate breaks.The part that circular-arc peristome and circular-arc unfertile land portion are surrounded breaks away from orifice plate together with the lug boss of the central authorities of diaphragm.Thereby make current interruptions by the weld portion conducting.Prevent the further decomposition of electrolyte and active material, the continuation that stops abnormal gas produces.
Phase III.Under above-mentioned situation, if inner pressure of battery rises with keeping, this battery will be had an effect with the function of the phase III of block, prevent the generation of dangerous phenomenon.That is, under the inner pressure of battery effect, diaphragm is upwards distortion constantly, under the effect of ring plate inner periphery, and rupture of diaphragm, this moment, abnormal gas was discharged outside batteries by the exhaust outlet of block parts, thereby reached the purpose that prevents cell fracture or blast.
Above-described triphasic function is not to immobilize, and can change accordingly according to the structure of battery with block.For example, when ring plate not being set, can omit the function of above-mentioned phase I,, can cut by cutting blade and split the purpose that prevents cell fracture or blast that diaphragm reaches the above-mentioned phase III simultaneously by the structure of cutting blade is set on the battery cap parts.
Although described the foregoing description of the present utility model, this embodiment only is for clearly demonstrating the utility model example, is not to be qualification to execution mode of the present utility model.It will be appreciated by those skilled in the art that explanation, under the prerequisite that guarantees the basic purpose of realization, can carry out respective combination, embodiment is made a change other additional technical features based on the foregoing description.
For example, on described orifice plate, be provided with circular welding with regional, welding is with adjacent a plurality of circular-arc peristome in the radial direction outside in zone and a plurality of circular-arc unfertile land portion, preferred circular-arc peristome and circular-arc unfertile land portion respectively are 2, circular-arc unfertile land portion connects the edge part of 2 adjacent circular-arc peristomes in a circumferential direction respectively, the face relative with orifice plate is provided with a plurality of alignment pins on the diaphragm, on the insulated ring and the contact-making surface of diaphragm be provided with cannelure with the alignment pin tabling, circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with diaphragm on the orifice plate, sealing ring and insulated ring have respectively to opposite one of the block parts side-prominent handguard portion, the height of handguard portion separately is identical, the block parts have exhaust outlet and are configured in the cutting blade of described exhaust ports, diaphragm is provided with ring-type unfertile land portion, the above cell internal pressure of setting causes when described diaphragm constantly expands, and cutting blade cuts described ring-type unfertile land portion.
In addition, for example, on described orifice plate, be provided with circular welding with regional, welding is with adjacent a plurality of circular-arc peristome in the radial direction outside in zone and a plurality of circular-arc unfertile land portion, preferred circular-arc peristome and circular-arc unfertile land portion respectively are 2, circular-arc unfertile land portion connects the edge part of 2 adjacent circular-arc peristomes in a circumferential direction respectively, the face relative with orifice plate is provided with a plurality of alignment pins on the diaphragm, on the insulated ring and the contact-making surface of diaphragm be provided with cannelure with the alignment pin tabling, circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with diaphragm on the orifice plate.
In addition, for example, on described orifice plate, be provided with circular welding with regional, welding is with adjacent a plurality of circular-arc peristome in the radial direction outside in zone and a plurality of circular-arc unfertile land portion, preferred circular-arc peristome and circular-arc unfertile land portion respectively are 2, circular-arc unfertile land portion connects the edge part of 2 adjacent circular-arc peristomes in a circumferential direction respectively, the face relative with orifice plate is provided with a plurality of alignment pins on the diaphragm, on the insulated ring and the contact-making surface of diaphragm be provided with cannelure with the alignment pin tabling, sealing ring and insulated ring have respectively to opposite one of the block parts side-prominent handguard portion, and the height of handguard portion separately is identical.
In addition, for example, on described orifice plate, be provided with circular welding with regional, welding is with adjacent a plurality of circular-arc peristome in the radial direction outside in zone and a plurality of circular-arc unfertile land portion, preferred circular-arc peristome and circular-arc unfertile land portion respectively are 2, circular-arc unfertile land portion connects the edge part of 2 adjacent circular-arc peristomes in a circumferential direction respectively, the face relative with orifice plate is provided with a plurality of alignment pins on the diaphragm, on the insulated ring and the contact-making surface of diaphragm be provided with cannelure with the alignment pin tabling, the block parts have exhaust outlet and are configured in the cutting blade of exhaust ports, diaphragm is provided with ring-type unfertile land portion, the above cell internal pressure of setting causes when diaphragm constantly expands that cutting blade cuts ring-type unfertile land portion.
In addition, for example, on described orifice plate, be provided with circular welding with regional, welding is with adjacent a plurality of circular-arc peristome in the radial direction outside in zone and a plurality of circular-arc unfertile land portion, preferred circular-arc peristome and circular-arc unfertile land portion respectively are 2, circular-arc unfertile land portion connects the edge part of 2 adjacent circular-arc peristomes in a circumferential direction respectively, circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with diaphragm on the orifice plate, sealing ring and insulated ring have respectively to opposite one of described block parts side-prominent handguard portion, and the height of handguard portion separately is identical.
In addition, for example, on described orifice plate, be provided with circular welding with regional, welding is with adjacent a plurality of circular-arc peristome in the radial direction outside in zone and a plurality of circular-arc unfertile land portion, preferred circular-arc peristome and circular-arc unfertile land portion respectively are 2, circular-arc unfertile land portion connects the edge part of 2 adjacent circular-arc peristomes in a circumferential direction respectively, circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with diaphragm on the orifice plate, the block parts have exhaust outlet and are configured in the cutting blade of exhaust ports, diaphragm is provided with ring-type unfertile land portion, the above cell internal pressure of setting causes when described diaphragm constantly expands that cutting blade cuts ring-type unfertile land portion.
In addition, for example, on described orifice plate, be provided with circular welding with regional, welding is with adjacent a plurality of circular-arc peristome in the radial direction outside in zone and a plurality of circular-arc unfertile land portion, preferred circular-arc peristome and circular-arc unfertile land portion respectively are 2, circular-arc unfertile land portion connects the edge part of 2 adjacent circular-arc peristomes in a circumferential direction respectively, sealing ring and insulated ring have respectively to opposite one of the block parts side-prominent handguard portion, the height of handguard portion separately is identical, the block parts have exhaust outlet and are configured in the cutting blade of exhaust ports, diaphragm is provided with ring-type unfertile land portion, the above cell internal pressure of setting causes when described diaphragm constantly expands that cutting blade cuts ring-type unfertile land portion.
Claims (19)
1. a battery has with block: the diaphragm that breaks when airtight pressure inside is too high with the described diaphragm orifice plate of welding mutually, described diaphragm and described orifice plate are electrically connected by weld portion,
Described battery with the block be characterised in that,
Be provided with on described orifice plate: the circular welding that is used to form described weld portion is with regional; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively,
Act on when pressure inside reaches setting on the described diaphragm, described circular-arc unfertile land portion is torn, and loses to be electrically connected.
2. battery as claimed in claim 1 is characterized in that with block, and described circular-arc peristome and described circular-arc unfertile land portion respectively are 2.
3. battery as claimed in claim 1 is characterized in that with block described diaphragm is formed by aluminium, and its thickness is below the above 0.30mm of 0.20mm.
4. battery as claimed in claim 1 is with blocking a shot, it is characterized in that, be provided with between described diaphragm and the described orifice plate and stop the two insulated ring that is electrically connected, face relative with described orifice plate on the described diaphragm is provided with a plurality of alignment pins, on the described insulated ring and the contact-making surface of described diaphragm be provided with cannelure with described alignment pin tabling.
5. battery as claimed in claim 1 is characterized in that with block, and described circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with described diaphragm on the described orifice plate.
6. battery as claimed in claim 2 is characterized in that with block, and described 2 circular-arc unfertile land portions are below the above 2.4mm of 2.0mm at diametric spacing distance each other.
7. battery as claimed in claim 1 is with blocking a shot, it is characterized in that, have and be arranged between described diaphragm and the described orifice plate, stop the two insulated ring that is electrically connected and sealing ring, when described sealing ring is used to keep described diaphragm and battery assembling as the block parts of lid, described sealing ring and described insulated ring have respectively to opposite one of described block parts side-prominent handguard portion, and the height of described separately handguard portion is identical.
8. battery as claimed in claim 7 is characterized in that with block described sealing ring separates setting with described insulated ring.
9. battery as claimed in claim 1 is with blocking a shot, it is characterized in that, block parts as lid during the battery assembling have exhaust outlet and the cutting blade that is configured in described exhaust ports, described diaphragm is provided with ring-type unfertile land portion, the above cell internal pressure of setting causes when described diaphragm constantly expands, and described cutting blade cuts described ring-type unfertile land portion.
10. battery as claimed in claim 7 is characterized in that with block, is provided with annular projection with contacted of described diaphragm on the described sealing ring.
11. a battery has: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm, described diaphragm and described orifice plate are electrically connected by weld portion,
Described battery with the block be characterised in that,
Be provided with on described orifice plate: the circular welding that is used to form described weld portion is with regional; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively,
Face relative with described orifice plate on the described diaphragm is provided with a plurality of alignment pins, on the described insulated ring and the contact-making surface of described diaphragm be provided with cannelure with described alignment pin tabling,
Described circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with described diaphragm on the described orifice plate,
Described sealing ring and described insulated ring have respectively to opposite one of described block parts side-prominent handguard portion, and the height of described separately handguard portion is identical,
Described block parts have exhaust outlet and are configured in the cutting blade of described exhaust ports, and described diaphragm is provided with ring-type unfertile land portion, and the above cell internal pressure of setting causes when described diaphragm constantly expands, and described cutting blade cuts described ring-type unfertile land portion.
12. a battery has: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm, described diaphragm and described orifice plate are electrically connected by weld portion,
Described battery with the block be characterised in that,
Be provided with on described orifice plate: the circular welding that is used to form described weld portion is with regional; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively,
Face relative with described orifice plate on the described diaphragm is provided with a plurality of alignment pins, on the described insulated ring and the contact-making surface of described diaphragm be provided with cannelure with described alignment pin tabling,
Described circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with described diaphragm on the described orifice plate.
13. a battery has: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm,
Described diaphragm and described orifice plate are electrically connected by weld portion,
Described battery with the block be characterised in that,
Be provided with on described orifice plate: the circular welding that is used to form described weld portion is with regional; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively,
Face relative with described orifice plate on the described diaphragm is provided with a plurality of alignment pins, on the described insulated ring and the contact-making surface of described diaphragm be provided with cannelure with described alignment pin tabling,
Described sealing ring and described insulated ring have respectively to opposite one of described block parts side-prominent handguard portion, and the height of described separately handguard portion is identical.
14. a battery has: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm, described diaphragm and described orifice plate are electrically connected by weld portion,
Described battery with the block be characterised in that,
Be provided with on described orifice plate: the circular welding that is used to form described weld portion is with regional; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively,
Face relative with described orifice plate on the described diaphragm is provided with a plurality of alignment pins, on the described insulated ring and the contact-making surface of described diaphragm be provided with cannelure with described alignment pin tabling,
Described block parts have exhaust outlet and are configured in the cutting blade of described exhaust ports, and described diaphragm is provided with ring-type unfertile land portion, and the above cell internal pressure of setting causes when described diaphragm constantly expands, and described cutting blade cuts described ring-type unfertile land portion.
15. a battery has: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm, described diaphragm and described orifice plate are electrically connected by weld portion,
Described battery with the block be characterised in that,
Be provided with on described orifice plate: the circular welding that is used to form described weld portion is with regional; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively,
Described circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with described diaphragm on the described orifice plate,
Described sealing ring and described insulated ring have respectively to opposite one of described block parts side-prominent handguard portion, and the height of described separately handguard portion is identical.
16. a battery has: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm,
Described diaphragm and described orifice plate are electrically connected by weld portion,
Described battery with the block be characterised in that,
Be provided with on described orifice plate: the circular welding that is used to form described weld portion is with regional; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively,
Described circular-arc unfertile land portion is the V-notch that is formed on the face of a relative side with described diaphragm on the described orifice plate,
Described block parts have exhaust outlet and are configured in the cutting blade of described exhaust ports, and described diaphragm is provided with ring-type unfertile land portion, and the above cell internal pressure of setting causes when described diaphragm constantly expands, and described cutting blade cuts described ring-type unfertile land portion.
17. a battery has: the block parts with block; The diaphragm that breaks when airtight pressure inside is too high; With the described diaphragm orifice plate of welding mutually; The insulated ring that be arranged between described diaphragm and the described orifice plate, stops the two to be electrically connected; And the sealing ring of be used to keep to block a shot parts and described diaphragm,
Described diaphragm and described orifice plate are electrically connected by weld portion,
Described battery with the block be characterised in that,
Be provided with on described orifice plate: the circular welding that is used to form described weld portion is with regional; At the radial direction outside adjacent a plurality of circular-arc peristome of described welding with the zone; And a plurality of circular-arc unfertile land portion, described circular-arc unfertile land portion connects the edge part of 2 adjacent described circular-arc peristomes in a circumferential direction respectively,
Described sealing ring and described insulated ring have respectively to opposite one of described block parts side-prominent handguard portion, and the height of described separately handguard portion is identical,
Described block parts have exhaust outlet and are configured in the cutting blade of described exhaust ports, and described diaphragm is provided with ring-type unfertile land portion, and the above cell internal pressure of setting causes when described diaphragm constantly expands, and described cutting blade cuts described ring-type unfertile land portion.
18. with block, it is characterized in that as any described battery of claim 11 to 17 described circular-arc peristome and described circular-arc unfertile land portion respectively are 2.
19. a battery is characterized in that, has as any described battery of claim 1 to 18 with blocking a shot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200245725U CN201927646U (en) | 2011-01-17 | 2011-01-17 | Nut cap for battery and battery using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200245725U CN201927646U (en) | 2011-01-17 | 2011-01-17 | Nut cap for battery and battery using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201927646U true CN201927646U (en) | 2011-08-10 |
Family
ID=44431482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200245725U Expired - Fee Related CN201927646U (en) | 2011-01-17 | 2011-01-17 | Nut cap for battery and battery using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201927646U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417139A (en) * | 2016-06-30 | 2019-03-01 | 三洋电机株式会社 | Battery block |
| CN111033790A (en) * | 2017-08-22 | 2020-04-17 | 大和制罐株式会社 | Sealing plate |
| CN112382826A (en) * | 2021-01-15 | 2021-02-19 | 蜂巢能源科技有限公司 | A explosion-proof valve, electric core and battery module for electric core |
-
2011
- 2011-01-17 CN CN2011200245725U patent/CN201927646U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417139A (en) * | 2016-06-30 | 2019-03-01 | 三洋电机株式会社 | Battery block |
| CN109417139B (en) * | 2016-06-30 | 2021-07-23 | 三洋电机株式会社 | Battery block |
| CN111033790A (en) * | 2017-08-22 | 2020-04-17 | 大和制罐株式会社 | Sealing plate |
| CN112382826A (en) * | 2021-01-15 | 2021-02-19 | 蜂巢能源科技有限公司 | A explosion-proof valve, electric core and battery module for electric core |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018120388A1 (en) | Button battery and manufacturing method therefor | |
| WO2007076693A1 (en) | Secondary batery | |
| CN201450036U (en) | Lithium-ion battery combination cap | |
| WO2015146077A1 (en) | Cylindrical hermetically sealed battery | |
| CN216213727U (en) | Battery cell, battery and power consumption device | |
| US9819004B2 (en) | Current interruption device and electricity storage device including same | |
| US20140045009A1 (en) | Secondary battery | |
| KR20110125488A (en) | Battery pack | |
| CN101262050B (en) | Explosion-proof cover cap for high-time discharging column lithium ion battery | |
| JP2006228520A (en) | Secondary battery | |
| CN201927646U (en) | Nut cap for battery and battery using same | |
| CN201994356U (en) | Battery assembly cover cap | |
| JP2016126975A (en) | Cylindrical battery | |
| JP3188012U (en) | Lithium-ion battery safety device | |
| CN207676956U (en) | Cylindrical lithium ion battery cap | |
| CN204946948U (en) | A kind of lithium ion battery safe cap with fuse | |
| WO2017143749A1 (en) | Single-cell battery, battery module, power battery, and electric automobile | |
| KR20150021732A (en) | Cap Assembly Having Safety Vent with Notch | |
| US20230207984A1 (en) | Battery cell, method and system for manufacturing same, battery, and electrical device | |
| CN107305936A (en) | Secondary cell | |
| CN101556993B (en) | Lithium ion battery combination block | |
| JP2007227283A (en) | Sealed battery | |
| WO2016187819A1 (en) | Cylindrical lithium ion battery | |
| KR20130034284A (en) | Current interrupting device and secondary battery using the same | |
| CN220291008U (en) | High-multiplying-power lithium ion explosion-proof battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: EIXIOU CO., LTD. Free format text: FORMER OWNER: CHENG ZEQING Effective date: 20130902 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130902 Address after: Aichi Prefecture, Aichi Prefecture, Japan, Rong Ting two, Ding mu, 58 times Patentee after: KK Address before: Nagano, Japan, Nagano Prefecture, Japan, 1587-5 Patentee before: Cheng Zeqing |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20170117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |