CN207353094U - Energy storage device - Google Patents
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- CN207353094U CN207353094U CN201721507289.1U CN201721507289U CN207353094U CN 207353094 U CN207353094 U CN 207353094U CN 201721507289 U CN201721507289 U CN 201721507289U CN 207353094 U CN207353094 U CN 207353094U
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Abstract
The utility model discloses a kind of energy storage device, the end set of the shell of the energy storage device has first through hole, and gap is set in first through hole successively since the lower end of shell for positive electrode deriving structure, core and negative cover；Positive electrode deriving structure includes flow collection sheet and the extraction lid as cathode, and the outer rim gap inserting of flow collection sheet draws lid gap inserting in the blind hole of flow collection sheet in first through hole, and end, the end of extraction lid and the end of shell of flow collection sheet are once welded to connect；Negative electrode deriving structure includes collector, the pole as anode and the connecting column being arranged between collector and pole, it is provided with connecting column for the third through-hole with pole clearance fit, the lower end of collector and connecting column is welded to connect, and the upper end between connecting column and pole in third through-hole is welded to connect.The utility model not only can guarantee that its reliability and stability, service life, but also can improve its production efficiency and reduce processing cost.
Description
Technical field
It the utility model is related to energy storage device technical field.
Background technology
Battery or ultracapacitor are widely used in the fields such as industry, the energy, military affairs as energy storage device.It is wherein super
Its interior tissue is mainly played the leakage for preventing electrolyte in the encapsulating structure part of capacitor, and prevents that water, dust etc. are outer
The effect of influence of boundary's adverse circumstances to ultracapacitor in itself；Meanwhile ultracapacitor also provides power extraction pole, for
The connection of external equipment.As the key component of ultracapacitor, using which kind of encapsulating structure not only to the electricity of ultracapacitor
Resistance has a major impact, and the reliability and service life to monomer are also most important.
Common encapsulating structure has following two forms in energy storage device at present, the first structure type as shown in Figure 1,
Core 7 ' is equipped with the shell 5 ' of one end open, collector 4 ' and flow collection sheet 6 ', flow collection sheet 6 ' is respectively welded in the both ends of core 7 '
Connected using interference fit with the bottom of shell 5 ', generally assembled by way of hot charging or cold charge, while in shell 5 '
The position of the corresponding flow collection sheet 6 ' in outside is fixedly connected by way of ultrasonic wave/magnetic pulse welding, so as to draw cathode；
Insulating washer 2 ' is placed with the shaft shoulder of collector 4 ', by being carried out to the specified location of shell 5 ' at slot rolling and compression shaping
Reason, makes its inner cavity obtain an embedded step, and the lower face of the step carries out collector 4 ' axial restraint, and O is placed in upper surface
Type circle 3 ', negative cover 1 ' using being interference fitted, are generally assembled, so as to draw with collector 4 ' by way of hot charging or cold charge
Go out anode.
It is bad that the energy storage device of this structure type in all too many levels be easy to cause product quality.1st, shell 5 ' is in ultrasound
After ripple/magnetic pulse welding, the welding slag of weldering spot position can be uneven, influences presentation quality；Meanwhile in ultrasonic wave/magnetic field impulse weldering
In termination process, since core 7 ' has certain softness, it can produce certain deformation after being squeezed, its one side can make core after deformation
The internal organizational structure of body 7 ', which produces change, then influences properties of product, on the other hand can cause flow collection sheet 6 ' because of no rigid support,
Cause welding quality bad, cause rosin joint；2nd, the embedded step of shell 5 ' needs first to carry out slot rolling positioning when being formed, then carries out
Axial compression is handled, and the embedded step of shell 5 ' can be subject to larger pressure in forming process, if material inside organization is homogeneous
Property is bad, or has the defects of slag blister, bubble, tomography, then be easy to cause the hidden danger of quality of encapsulation；3rd, it is complicated to assemble link, its
In two at interference fit generally can only utilize metal thermal expansion and contraction principle, assembled by hot charging or cold charge mode；4、
Shell 5 ' uses the structure type of one end open, it is generally produced by the way of punching stretch, this processing method, processing capacity
Journey is smaller, and cost is higher.Critical size at the respective outer side edges is required to carry out machine and adds production, while collector, flow collection sheet, negative
The parts such as polar cap also generally add production using machine, its cost is usually 5-10 times of mould profile production cost, processing cost compared with
It is high.
In conclusion using the above structure, not only assembling link is more complicated, and production and processing cost is higher and all polycyclic
Section be easy to cause that product quality is bad, and certain uncertainty is produced to the performance of energy storage device.
Second of structure type as shown in Fig. 2, being equipped with core 8 " in the shell 1 " being open at one end, divide by the both ends of core 8 "
Collector 4 " and flow collection sheet 7 " are not welded with it；It is connected between collector 4 " and negative cover 3 " using transition, afterwards at both
Circumference soldering is carried out at the coincidence gap of end face, realizes fixed and increase contact area purpose；Flow collection sheet 7 " and shell 1 "
Bottom transition is connected, then by ultrasonic wave/magnetic field impulse mode to carrying out soldering at cooperation.
The cathode lead-out mode of the energy storage device of this structure type and using the shell of one end open design and the first
The problem of energy storage device of structure type is basically identical, it is produced is same as above；Its anode lead-out mode, employs transition cooperation and is welded with
The structure connect, this structure are higher to collector 4 " and the requirement on machining accuracy at the cooperation of negative cover 3 ", and difficulty of processing is larger, by
This also increases the processing cost and testing cost of part.
Utility model content
The technical problem to be solved by the present invention is to provide one kind not only can guarantee that its reliability and stability, service life, but also
Its production efficiency can be improved and reduce the energy storage device of processing cost.
In order to solve the above technical problems, the utility model offer technical solution is as follows：
A kind of energy storage device, including shell, positive electrode deriving structure, core, negative cover and negative electrode deriving structure, its
In：
The end set of the shell has a first through hole, and positive electrode deriving structure, core and the negative cover are from described outer
The lower end of shell starts gap successively and is set in the first through hole；
The positive electrode deriving structure includes the flow collection sheet being connected with the core and the extraction lid as cathode, the collection
The end set of flow has blind hole, and the outer rim gap inserting of the flow collection sheet is in the first through hole, the extraction lid gap
In the blind hole, end, the end of extraction lid and the end of shell of the flow collection sheet are once welded to connect for inserting；
The end set of the negative cover is useful for being arranged the second through hole of the negative electrode deriving structure；
Collector that the negative electrode deriving structure includes being connected with the core, the pole as anode and be arranged at
Connecting column between the collector and pole, is provided with for the threeway with the pole clearance fit on the connecting column
Hole, the lower end of the collector and the connecting column are welded to connect, in the third through-hole between the connecting column and pole
Upper end is welded to connect.
Further, the lid of drawing includes lid body and is arranged at the boss of the lid body lower end, the lid body
The end of end, the flow collection sheet away from the core away from the core is concordant with the end of the shell.
Further, the upper end of the connecting column is provided with and diameter coaxial with the third through-hole and is more than the threeway
The fourth hole of bore dia, welding connects in the groove that the pole and fourth hole are formed between the connecting column and pole
Connect.
Further, the corresponding position of the fourth hole is provided with annular notch, institute in the outer rim of the pole
State the step of annular notch and the step flush of the fourth hole.
Further, the poles up position is provided with diameter of the diameter less than the annular notch in the upper end of annular notch
Protrusion.
Further, the lower end of the connecting column is provided with and diameter coaxial with the third through-hole and is less than the threeway
The fifth hole of the diameter in hole, the collector are welded to connect with the connecting column at the fifth hole.
Further, set fluted in the outer rim of the connecting column, felt pad and O-ring be provided with the groove,
The upper end of the felt pad rides upon the appearing on the stage between terrace and the upper surface of the negative cover of the groove, and the O-ring is set
Put between the leave from office terrace of the groove and the lower face of the second through hole.
Further, the groove be arranged at it is annular recessed by obtaining at flange in the connecting column outer rim
Groove.
Further, the groove is by being surrounded between the upper surface of the connecting column and the upper surface of the collector
Annular groove.
Further, it is provided with the negative cover positioned at the lower end of second through hole with second through hole coaxially simultaneously
And diameter is more than the 6th through hole of the diameter of second through hole, the depth of second through hole is less than the depth of the groove,
The O-ring is arranged between the step surface of the 6th through hole and the leave from office terrace of the groove.
The utility model has the advantages that：
Compared with prior art, in the energy storage device of the utility model the end set first through hole of shell structure side
Formula so that core, positive electrode deriving structure and the equal gap of negative cover are set in first through hole, and negative electrode deriving structure passes through negative
Polar cap and cage connection, and positive electrode deriving structure, negative cover are attached with shell using welding manner respectively.This knot
Structure mode causes energy storage device to be cooled down in assembling process to parts or be heated up and pre-determined bit processing, saves
Installation time, improves production efficiency.Wherein, shell uses the design of both ends open, is produced by extrusion stretching mode,
It is larger that it produces range, is usually produce 6-8 times of punching stretch mode, cost is relatively low.In positive electrode deriving structure, it is logical
Cross the individually designed extraction lid as cathode, and lid gap inserting will be drawn in the blind hole of flow collection sheet, and flow collection sheet then gap
It is set in the first through hole of shell, shell, flow collection sheet and extraction lid is fixedly connected by once welding, can with realization
Purpose by fixing and obtaining preferable electric conductivity.In negative electrode deriving structure, it is by connecting column by pole and afflux
Body connects, and the lower end of collector and connecting column carries out soldering, clearance fit between connecting column and pole, afterwards by connecting column
With pole third through-hole upper end carry out soldering, in assembling process without be cooled down to parts or heated up and
Pre-determined bit processing, saves the time, improves production efficiency；Meanwhile the frame mode of negative electrode deriving structure causes shell not
Need to carry out exterior slot rolling processing, reduce manufacturing procedure, and core extrudes from external force, can ensure energy storage device well
Internal organization is indeformable, is conducive to extend the service life of energy storage device.In addition, welding is company optimal in being conductively connected
Mode is connect, the contact area between parts can be increased, reduces contact internal resistance, so that the internal resistance of energy storage device is advantageously reduced,
High temperature or low temperature environment, substantially without influence, thereby increase the reliability and stability of electrode lead-out mode, are conducive on welding effect
Extend the service life of energy storage device.
In conclusion requirement of the energy storage device of the utility model to the machining accuracy of each parts is relatively low, it is easy to accomplish,
The qualification rate and production efficiency of product can be largely improved, reduces production and processing cost.
Brief description of the drawings
Fig. 1 is the structure diagram of the first encapsulating structure of energy storage device in the prior art；
Fig. 2 is the structure diagram of second of encapsulating structure of energy storage device in the prior art；
Fig. 3 is the structure diagram of the energy storage device of the utility model；
Fig. 4 be the utility model energy storage device in positive electrode deriving structure structure diagram；
Fig. 5 is the close-up schematic view at I in Fig. 4；
Fig. 6 be the utility model energy storage device in negative electrode deriving structure structure diagram；
Fig. 7 be the utility model energy storage device in insulation and sealing structure structure diagram.
Embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
The utility model provides a kind of energy device, as shown in Fig. 3 to Fig. 7, including shell 7, positive electrode deriving structure, core
10th, negative cover 5 and negative electrode deriving structure, wherein：
The end set of shell 7 has a first through hole 7-1, and positive electrode deriving structure, core 10 and negative cover 5 are from shell 7
Lower end starts gap successively and is set in first through hole 7-1；
Positive electrode deriving structure includes the flow collection sheet 8 being connected with core 10 and the extraction lid 9 as cathode, flow collection sheet 8
End set has blind hole 8-1, and the outer rim gap inserting of flow collection sheet 8 draws lid gap inserting in blind hole 8- in first through hole 7-1
In 1, end, the end of extraction lid 9 and the end of shell 7 of flow collection sheet 8 are once welded to connect；
The end set of negative cover 5 is useful for being arranged the second through hole 5-1 of negative electrode deriving structure；
Collector 6 that negative electrode deriving structure includes being connected with core 10, the pole 1 as anode and be arranged at afflux
Connecting column 2 between body 6 and pole 1, is provided with for the third through-hole 2-1 with 1 clearance fit of pole, afflux on connecting column 2
Body 6 and the lower end of connecting column 2 are welded to connect, and are welded to connect between connecting column 2 and pole 1 in the upper end of third through-hole 2-1.
The frame mode of the end set first through hole 7-1 of shell 7 in the energy storage device of the utility model so that core
10th, positive electrode deriving structure and 5 equal gap of negative cover are set in first through hole 7-1, and negative electrode deriving structure passes through negative cover 5
It is connected with shell 7, and positive electrode deriving structure, negative cover 5 are attached with shell 7 using welding manner respectively.This knot
Structure mode causes energy storage device to be cooled down in assembling process to parts or be heated up and pre-determined bit processing, saves
Installation time, improves production efficiency.Wherein, shell 7 is given birth to using the design of both ends open by extrusion stretching mode
Production, it is larger that it produces range, is usually produce 6-8 times of punching stretch mode, cost is relatively low.In positive electrode deriving structure,
It will draw 9 gap inserting of lid in the blind hole 8-1 of flow collection sheet 8 by the individually designed extraction lid 9 for being used as cathode, and collect
Then gap is set in the first through hole 7-1 of shell 7 for flow 8, by once weld to shell 7, flow collection sheet 8 and draw lid 9 into
Row is fixedly connected with (i.e. at A in Fig. 5), to realize purpose that is reliable fixed and obtaining preferable electric conductivity.Draw in negative electrode
Go out in structure, pole 1 is connected by it by connecting column 2 with collector 6, and collector 6 and the lower end of connecting column 2 carry out weld
Reason, clearance fit between connecting column 2 and pole 1, is afterwards welded connecting column 2 with pole 1 in the upper end of third through-hole 2-1
Processing, in assembling process without be cooled down to parts or heated up and pre-determined bit processing, save the time, improve life
Produce efficiency；Meanwhile the frame mode of negative electrode deriving structure causes shell 7 to carry out exterior slot rolling processing, reduce and add
Work process, and core 10 extrudes from external force, can ensure that energy storage device internal organization is indeformable, is conducive to prolong well
The service life of long energy storage device.In addition, welding is connection mode optimal in being conductively connected, connecing between parts can be increased
Contacting surface is accumulated, and reduces contact internal resistance, so as to advantageously reduce the internal resistance of energy storage device, high temperature or low temperature environment are basic to welding effect
Without influence, the reliability and stability of electrode lead-out mode is thereby increased, is conducive to extend the service life of energy storage device.
In conclusion requirement of the energy storage device of the utility model to the machining accuracy of each parts is relatively low, it is easy to accomplish,
The qualification rate and production efficiency of product can be largely improved, reduces production and processing cost.
Energy storage device in the utility model preferably includes ultracapacitor and battery.
Further, lid 9 is drawn to preferably include lid body 9-1 and be arranged at the boss 9-2, Gai Ben of lid body 9-1 lower ends
Ends of the body 9-1 away from core 10, end of the flow collection sheet 8 away from core 10 are concordant with the end of shell 7 in order between three
Once it is welded to connect.Boss 9-2 is used for the exit of the positive electrode deriving structure as the utility model.
In order to increase the welding contact area between connecting column 2 and pole 1, the upper end of connecting column 2 is preferably provided with and the
Three through hole 2-1 are coaxial and diameter is more than the fourth hole 2-4 of third through-hole 2-1 diameters, in pole 1 between connecting column 2 and pole 1
It is welded to connect in the groove formed with fourth hole 2-4.
In addition, annular notch 1-2, ring can also be provided with the corresponding positions of fourth hole 2-4 in the outer rim of pole 1
The step of v notch v 1-2 and the step flush of fourth hole 2-4 are further to increase the welding between connecting column 2 and pole 1
Contact area.
Further, diameter is preferably provided with positioned at the upper end of annular notch 1-2 be less than annular notch 1-2's on pole 1
The raised 1-1 of diameter.Raised 1-1 is used for the exit of the negative electrode deriving structure as the utility model.
Preferably, the lower end of connecting column 2 can be provided with and diameter coaxial with third through-hole 2-1 and be less than third through-hole 2-1
Diameter fifth hole 2-2, collector 6 is welded to connect with connecting column 2 at fifth hole 2-2, to realize collector 6 with turning
Connect being fixedly connected for column 2.
Further, fluted 2-3 is set in the outer rim of connecting column 2, felt pad 3 and O-ring 4 are provided with groove 2-3,
The upper end of felt pad 3 rides upon the appearing on the stage between terrace and the upper surface of negative cover 5 of groove 2-3, and O-ring 4 is arranged on groove 2-3
Leave from office terrace and the second through hole 5-1 lower face between.
As shown in fig. 6, groove 2-3 can be arranged at it is annular recessed by obtaining at flange in 2 outer rim of connecting column
Groove.After the negative cover 5 for placing felt pad 3 is nested with the leave from office terrace for place the groove 2-3 of connecting column 2 of O-ring 4,
Handled by the flange carried out to the upper end of connecting column 2 toward outer, the upper surface of connecting column 2 is formed the top bar of groove 2-3
Face and thereon step surface are pressed on the upper end of felt pad 3, you can fix negative cover 5, felt pad 3, O-ring 4 and connecting column 2
Connection.
Certainly, groove 2-3 can also be the annular by being surrounded between the upper surface of connecting column 2 and the upper surface of collector 6
Groove.The negative cover 5 for placing felt pad 3 can be nested with the outer rim of connecting column 2 by this structure from the bottom up, and make groove
The terrace of appearing on the stage of 2-3 is pressed on the upper end of felt pad 3, and O-ring 4 is nested with the outer rim of connecting column 2 from the bottom up afterwards, and
O-ring 4 is pressed on the lower face of the second through hole 5-1, be afterwards welded to connect connecting column 2 and collector 6, make collector 6
Upper surface form the leave from office terrace of groove 2-3.
As shown in fig. 7, it is preferably provided with negative cover 5 positioned at the lower end of the second through hole 5-1 with the second through hole 5-1 coaxially simultaneously
And the 6th through hole 5-2 of diameter of the diameter more than the second through hole 5-1, the depth h1 of the second through hole 5-1 are less than the depth of groove 2-3
H2, O-ring 4 are arranged between the step surface of the 6th through hole 5-2 and the leave from office terrace of groove 2-3.This structure can reduce negative
The weight of polar cap 5, makes the structure of negative cover 5 more reasonable.The depth h1 of the depth h2 of its further groove 2-3 and the second through hole 5-1
Difference should ensure that the deflection of O-ring 4.
The installation step of the energy storage device of the utility model is as follows：
Step 1：Collector 6 and flow collection sheet 8 are respectively welded on the upper/lower terminal face for being fixed on core 10, afterwards by three
Person is integrally nested with the endoporus of shell 7；
Step 2：Felt pad 3 is placed in the second through hole 5-1 of negative cover 5, and make felt pad 3 upper end ride upon it is negative
Integrally it is nested with the upper surface of polar cap 5, both it on the leave from office terrace in the groove 2-3 for the connecting column 2 for being placed with O-ring 4,
Handled by the flange carried out to the upper end of connecting column 2 toward outer, the upper surface of connecting column 2 is formed the top bar of groove 2-3
Face and thereon step surface are pressed on the upper end of felt pad 3, thus carry out negative cover 5, felt pad 3, O-ring 4 and connecting column 2
Connection is fixed to form cap assemblies, while O-ring 4 produces compression and realizes sealing；
Step 3：Cap assemblies in step 2 are integrally positioned at the first through hole 7-1 of shell 7, while the bottom of connecting column 3
Face is pressed on the upper surface of collector 6, and negative cover 5 and shell 7 are welded and fixed in the end of shell 7 afterwards, is being turned
Connect and carry out welding with collector 6 at the fifth hole 2-2 of column 2 and achieve a fixed connection；
Step 4：Pole 1 is nested with the first half of the third through-hole 2-1 of connecting column 2, will be transferred in the upper end of three through hole 2-1
Column 2 and pole 1 are welded and fixed, and thus draw the negative electrode of energy storage device；
Step 5：Lid 9 will be drawn to be nested with the blind hole 8-1 of flow collection sheet 8, and end, the end of flow collection sheet 8 to extraction lid 9
Portion and the end of shell 7 are once welded and fixed, and thus draw the positive electrode of energy storage device.
Above is the preferred embodiment of the utility model, it is noted that for those skilled in the art
For, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of energy storage device, it is characterised in that drawn including shell, positive electrode deriving structure, core, negative cover and negative electrode
Structure, wherein：
The end set of the shell has a first through hole, and positive electrode deriving structure, core and the negative cover are from the shell
Lower end starts gap successively and is set in the first through hole；
The positive electrode deriving structure includes the flow collection sheet being connected with the core and the extraction lid as cathode, the flow collection sheet
End set have blind hole, the outer rim gap inserting of the flow collection sheet in the first through hole, it is described extraction lid gap inserting
In the blind hole, end, the end of extraction lid and the end of shell of the flow collection sheet are once welded to connect；
The end set of the negative cover is useful for being arranged the second through hole of the negative electrode deriving structure；
Collector that the negative electrode deriving structure includes be connected with the core, the pole as anode and described in being arranged at
Connecting column between collector and pole, is provided with for the third through-hole with the pole clearance fit on the connecting column,
The lower end of the collector and the connecting column is welded to connect, in the upper end of the third through-hole between the connecting column and pole
It is welded to connect.
2. energy storage device according to claim 1, it is characterised in that the lid of drawing includes lid body and is arranged at described
The boss of lid body lower end, the end of the lid body away from the core, end of the flow collection sheet away from the core are equal
It is concordant with the end of the shell.
3. energy storage device according to claim 1, it is characterised in that the upper end of the connecting column is provided with and the described 3rd
Through hole is coaxial and diameter is more than the fourth hole of the third through-hole diameter, between the connecting column and pole the pole with
It is welded to connect in the groove that fourth hole is formed.
4. energy storage device according to claim 3, it is characterised in that in the outer rim of the pole with the fourth hole phase
Corresponding position is provided with annular notch, the step flush of the step and the fourth hole of the annular notch.
5. energy storage device according to claim 4, it is characterised in that the poles up position is set in the upper end of annular notch
There is the protrusion that diameter is less than the diameter of the annular notch.
6. energy storage device according to claim 3, it is characterised in that the lower end of the connecting column is provided with and the described 3rd
Through hole is coaxial and diameter be less than the third through-hole diameter fifth hole, the collector and the connecting column are described the
Five through holes are welded to connect.
7. according to any energy storage device in claim 1 to 6, it is characterised in that set in the outer rim of the connecting column
It is fluted, felt pad and O-ring are provided with the groove, the upper end of the felt pad rides upon the terrace of appearing on the stage of the groove
Between the upper surface of the negative cover, the O-ring is arranged on the leave from office terrace of the groove and the lower face of the second through hole
Between.
8. energy storage device according to claim 7, it is characterised in that the groove is to be arranged in the connecting column outer rim
Pass through the obtained annular groove at flange.
9. energy storage device according to claim 7, it is characterised in that the groove be by the connecting column upper surface with
The annular groove surrounded between the upper surface of the collector.
10. energy storage device according to claim 7, it is characterised in that positioned at second through hole in the negative cover
Lower end be provided with and diameter coaxial with second through hole more than second through hole diameter the 6th through hole, described second
The depth of through hole is less than the depth of the groove, and the O-ring is arranged at the step surface of the 6th through hole and the groove
Between leave from office terrace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721507289.1U CN207353094U (en) | 2017-11-13 | 2017-11-13 | Energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721507289.1U CN207353094U (en) | 2017-11-13 | 2017-11-13 | Energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207353094U true CN207353094U (en) | 2018-05-11 |
Family
ID=62350511
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721507289.1U Active CN207353094U (en) | 2017-11-13 | 2017-11-13 | Energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207353094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786133A (en) * | 2017-11-13 | 2019-05-21 | 济南圣泉集团股份有限公司 | Energy storage device |
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2017
- 2017-11-13 CN CN201721507289.1U patent/CN207353094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786133A (en) * | 2017-11-13 | 2019-05-21 | 济南圣泉集团股份有限公司 | Energy storage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180621 Address after: 250204 Shandong province Ji'nan Zhangqiu District Diao town Ji'nan Holy Spring Company South Patentee after: Shandong Shengquan Amperex Technology Limited Address before: 250204 Industrial Development Zone, Diao Town, Zhangqiu, Ji'nan, Shandong Patentee before: Shengquan Group Co., Ltd., Ji'nan City |
|
| TR01 | Transfer of patent right |