CN204216139U - Energy storage device - Google Patents
Energy storage device Download PDFInfo
- Publication number
- CN204216139U CN204216139U CN201420642736.4U CN201420642736U CN204216139U CN 204216139 U CN204216139 U CN 204216139U CN 201420642736 U CN201420642736 U CN 201420642736U CN 204216139 U CN204216139 U CN 204216139U
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- Prior art keywords
- end cap
- collector
- storage device
- energy storage
- lug boss
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- 238000004146 energy storage Methods 0.000 title claims abstract description 65
- 238000003466 welding Methods 0.000 claims abstract description 42
- 230000000994 depressogenic effect Effects 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims description 22
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 9
- 229910052744 lithium Inorganic materials 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The utility model provides a kind of energy storage device, belongs to energy storage device field, is made up of body, the first collector, the first end cap, the second collector, the second end cap and battery core.First end cap is provided with depressed part, and the first collector is provided with the first lug boss coordinated with the described depressed part of the first end cap, and state the first collector and be connected with described first end cap interference fit, depressed part is connected by the mode of welding with the first lug boss.Such structure, can make full use of the space in body, increases the contact area of the contact area of the first collector and the first end cap, the first collector and battery core, makes the resistance of energy storage device less.The welding track of depressed part and the first lug boss is visible, controlled simultaneously, and bond pad locations is in body, on cavities seals without any impact.
Description
Technical field
The utility model relates to energy storage device field, in particular to energy storage device.
Background technology
Ultracapacitor or lithium battery are energy storage device common on market, and energy storage device traditional at present comprises battery core, the first collector, the second collector, the first end cap, the second end cap and the body for splendid attire battery core.First collector, the second collector weld with the two ends of battery core respectively, and the first end cap, the second end cap cover the opening at body two ends respectively, and respectively be arranged at first collector at battery core two ends, the second collector is connected.Wherein, the connected mode of the first end cap and the first collector is, first end cap is provided with through hole, and a part for the first collector is stretched out from the through hole of the first end cap, stretches out and the part that can directly observe directly is welded to connect with the openings of the first end cap in the first collector through hole; Other contact-making surfaces that cannot directly observe of first collector and the first end cap adopt ultrasonic spot welding or the blind weldering of laser to weld.First collector and the such connected mode of the first end cap, the connection area of the first collector and the first end cap is too little, make condenser resistance comparatively large, and welding effect cannot quantize to examine, and condenser resistance is increased further.
Utility model content
The purpose of this utility model is to provide a kind of energy storage device, causes the larger situation of energy storage device resistance to improve to make current energy storage device because of the connected mode of collector and end cap.
The utility model is achieved in that a kind of energy storage device, comprises body, the first collector, the first end cap, the second collector, the second end cap and battery core,
Described first end cap, described second end cap are arranged at the two ends of described body respectively, described body, described first end cap and described second end cap form cavity, described first collector, described second collector and described battery core are placed in described cavity, the two ends of described battery core are connected with described first collector, described second collector respectively, described first collector is connected with described first end cap, described second collector is connected with described second end cap
Described first end cap is provided with depressed part, and described first collector is provided with the first lug boss coordinated with described depressed part, and described first collector and described first end cap interference fit, described depressed part is connected by the mode of welding with described first lug boss.
Further, described first collector, described second collector are connected by the mode of welding with described battery core.Adopt welding manner, the tightness that described first collector, described second collector are connected with described battery core is higher, and also more firm, resistance is each other lower relative to other connected modes.
Further, described second collector and described body are integrated, and described second collector and described body form the sunk structure coordinated with described second end cap, and described second collector is connected by the mode of welding with described second end cap.
Adopt this structure, decrease the welding sequence that described second collector is connected with described body, avoid welding the resistive instability caused, it also avoid the high accuracy centered assembling carried out when described second collector is connected with described body, reduce frock precision, Simplified flowsheet requirement, meanwhile, sunk structure makes the connection of described second end cap and described body more firm.
Meanwhile, the contact area of the contact area of described second collector and described second end cap, described second collector and described battery core can maximize, and makes the minimizing that the resistance of energy storage device is also corresponding.The welding track that described second collector welds with described battery core can cover the whole end face of battery core, and welding track is visible, controlled.
Further, described first end cap is provided with the second lug boss, and described second lug boss is arranged at the side of described first end cap away from described cavity.The setting of the second lug boss is convenient to described energy storage device in use, that described first end cap can be more conveniently is connected with other devices that are outside.
Further, described second end cap is provided with the 3rd lug boss, and described 3rd lug boss is arranged at the side of described second end cap away from described cavity.The setting of the 3rd lug boss is convenient to described energy storage device in use, that described second end cap can be more conveniently is connected with other devices that are outside.
Further, described second end cap is provided with the through hole for injecting electrolyte, and described cavity is by described through hole and ft connection, and described energy storage device also comprises the stopper coordinated with described through hole.Through hole be arranged so that described energy storage device produce assembling time, technique is more simple, after internal structure has connected, has only needed to inject electrolyte by through hole, then is clogged by through hole with stopper, seal cavity.
Further, described two stoppers comprise outer plug and interior plug, and described interior plug is arranged in described through hole, and described outer plug is arranged at one end of described through hole and ft connection, and described outer plug is connected by the mode of welding with described second end cap.Interior plug is communicated with cavity one end to through hole and seals, and outer plug is communicated with outside one end to through hole and seals, and outer plug welding is connected on the second end cap, and the sealing of cavity is further ensured.
Further, described energy storage device also comprises the insulated ring be arranged between described first end cap, described body, and described insulated ring is connected with described first end cap, described body respectively.The setting of insulated ring directly contacts with described body to prevent described first end cap, causes electric leakage.
Further, described energy storage device also comprises the sealing ring for sealing described cavity, the inwall of described body is provided with the 4th lug boss coordinated with described sealing ring, and the inner side of described sealing ring is connected with described first end cap, and the outside of described sealing ring is connected with the inwall of described body.Described sealing ring by with the first end cap, coordinating of body cavity is sealed, prevent electrolyte from leaking outside.
Further, described energy storage device is ultracapacitor or lithium battery.During the operating state of ultracapacitor or lithium battery, compared with general electric capacity or battery, have larger electric current, the structure of the energy storage device that the utility model provides, for the operating state of this big current.
The energy storage device that the utility model provides, is made up of body, the first collector, the first end cap, the second collector, the second end cap and battery core.First end cap is provided with depressed part, and the first collector is provided with the first lug boss coordinated with the described depressed part of the first end cap, and state the first collector and be connected with described first end cap interference fit, depressed part is connected by the mode of welding with the first lug boss.Such structure, can make full use of the space in body, increases the contact area of the contact area of the first collector and the first end cap, the first collector and battery core, makes the resistance of energy storage device less.The welding track of depressed part and the first lug boss is visible, controlled simultaneously, and bond pad locations is in body, on cavities seals without any impact.
For making above-mentioned purpose of the present utility model, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
The external structure schematic diagram of the energy storage device that Fig. 1 provides for the utility model first embodiment;
The internal structure schematic diagram of the energy storage device that Fig. 2 provides for the utility model first embodiment;
The partial enlarged drawing of the internal structure schematic diagram of the energy storage device that Fig. 3 provides for the utility model first embodiment;
The vertical view of the energy storage device that Fig. 4 provides for the utility model first embodiment;
The bottom view of the energy storage device that Fig. 5 provides for the utility model first embodiment;
The internal structure schematic diagram of the energy storage device that Fig. 6 provides for the utility model second embodiment.
Wherein, 101-body; 102-first collector; 103-first end cap; 104-second collector; 105-second end cap; 106-battery core; 107-depressed part; 108-first lug boss; 109-second lug boss; 110-the 3rd lug boss; 111-through hole; 112-fills in outward; Plug in 113-; 114-insulated ring; 115-sealing ring; 116-the 4th lug boss.
Embodiment
Below in conjunction with accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.The assembly of the utility model embodiment describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiment of the present utility model provided in the accompanying drawings and the claimed scope of the present utility model of not intended to be limiting, but selected embodiment of the present utility model is only represented.Based on embodiment of the present utility model, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
Ultracapacitor or lithium battery are energy storage device common on market, and energy storage device traditional at present comprises battery core, the first collector, the second collector, the first end cap, the second end cap and the body for splendid attire battery core.First collector, the second collector weld with the two ends of battery core respectively, and the first end cap, the second end cap cover the opening at body two ends respectively, and respectively be arranged at first collector at battery core two ends, the second collector is connected.Wherein, the connected mode of the first end cap and the first collector is, first end cap is provided with through hole, and a part for the first collector is stretched out from the through hole of the first end cap, stretches out and the part that can directly observe directly is welded to connect with the openings of the first end cap in the first collector through hole; Other contact-making surfaces that cannot directly observe of first collector and the first end cap adopt ultrasonic spot welding or the blind weldering of laser to weld.
Inventor finds through long-term observation and research, first collector and the such connected mode of the first end cap, the connection area of the first collector and the first end cap is too little, makes condenser resistance larger, and welding effect cannot quantize to examine, and makes condenser resistance increase further.
The energy storage device that the utility model embodiment provides, first end cap is provided with depressed part, first collector is provided with the first lug boss coordinated with the depressed part of the first end cap, and state the first collector and be connected with the first end cap interference fit, depressed part is connected by the mode of welding with the first lug boss.Adopt such connected mode, the connection area of the first collector and the first end cap increases greatly, and the junction of depressed part and the first lug boss is changed in welding position, welding track is visible, controlled, do not need to re-use ultrasonic spot welding or the blind weldering of laser, simplify the technique of product, enhance productivity and reliability.
Consult Fig. 1-5, the energy storage device that the utility model first embodiment provides, comprise body 101, first collector 102, first end cap 103, second collector 104, second end cap 105 and battery core 106.
First end cap 103, second end cap 105 is arranged at the two ends of body 101, body 101, first end cap 103 and the second end cap 105 form cavity, first collector 102, second collector 104 and battery core 106 are placed in cavity, the two ends of battery core 106 are connected with the first collector 102, second collector 104 respectively, first collector 102 is connected with the first end cap 103, and the second collector 104 is connected with the second end cap 105.
First end cap 103 is provided with depressed part 107, and the first collector 102 is provided with the first lug boss 108, first collector 102 and the first end cap 103 interference fit coordinated with depressed part 107, and depressed part 107 is connected by the mode of welding with the first lug boss 108.
The cup depth of depressed part 107 is equal with the height of projection of the first lug boss 108, and the first collector 102 and the first end cap 103 can be clamped mutually.The solder joint that depressed part 107 welds with the first lug boss 108 is positioned at the external joint place of depressed part 107 and the first lug boss 108, and then welding track when welding can directly be seen.When welding, if there is error, just can observe directly, being convenient to timely control, adjustment.
First collector 102 and the first end cap 103 adopt such connected mode, the space in body 101 can be made full use of, increase the contact area of the first collector 102 and the first end cap 103, the first collector 102 and the contact area of battery core 106, make the resistance of energy storage device less.And the solder joint that depressed part 107 welds with the first lug boss 108 is positioned at body 101, on the sealing of the cavity of energy storage device without any impact.
As the optimal way of the utility model embodiment, the first collector 102, second collector 104 is connected by the mode of welding with battery core 106.Adopt welding manner, the first collector 102, second collector 104 is higher, also more firm with the connection tightness of battery core 106.Meanwhile, relative to other connected modes, the first collector 102, second collector 104 is lower with battery core 106 resistance each other.
As the optimal way of the utility model embodiment, the first end cap 103 is provided with the second lug boss 109, second lug boss 109 and is arranged at the side of the first end cap 103 away from cavity.The setting of the second lug boss 109 is convenient to energy storage device in use, that the first end cap 103 can be more conveniently is connected with other devices that are outside.
As the optimal way of the utility model embodiment, the second end cap 105 is provided with the 3rd lug boss the 110, three lug boss 110 and is arranged at the side of the second end cap 105 away from cavity.The setting of the 3rd lug boss 110 is convenient to energy storage device in use, that the second end cap 105 can be more conveniently is connected with other devices that are outside.
As the optimal way of the utility model embodiment, the second end cap 105 is provided with the through hole 111 for injecting electrolyte, and cavity is by through hole 111 and ft connection, and energy storage device also comprises the stopper coordinated with through hole 111.Through hole 111 be arranged so that energy storage device produce assembling time, technique is more simple, after internal structure has connected, has only needed to inject electrolyte by through hole 111, then is clogged by through hole 111 with stopper, can seal cavity.
As the optimal way of the utility model embodiment, two stoppers comprise outer plug 112 and Nei Sai 113, interior plug 113 is arranged in through hole 111, and outer plug 112 is arranged at one end of through hole 111 and ft connection, and outer plug 112 is connected by the mode of welding with the second end cap 105.Interior plug 113 pairs of through holes 111 are communicated with cavity one end and seal, and outer plug 112 pairs of through holes 111 are communicated with outside one end and seal, and outer plug 112 is welded on the second end cap 105, and the sealing of cavity is further ensured.
As the optimal way of the utility model embodiment, energy storage device also comprises the insulated ring 114 be arranged between the first end cap 103, body 101, and insulated ring 114 is connected with the first end cap 103, body 101 respectively.The setting of insulated ring 114 directly contacts with body 101 to prevent the first end cap 103, causes electric leakage.
As the optimal way of the utility model embodiment, energy storage device also comprises the sealing ring 115 for seal chamber, the inwall of body 101 is provided with the 4th lug boss 116 coordinated with sealing ring 115, the inner side of sealing ring 115 is connected with the first end cap 103, and the outside of sealing ring 115 is connected with the inwall of body 101.Sealing ring 115, by sealing cavity with the first end cap 103, coordinating of body 101, prevents electrolyte from leaking outside.
Further, energy storage device is ultracapacitor or lithium battery.During the operating state of ultracapacitor or lithium battery, compared with general electric capacity or battery, have larger electric current, the structure of the energy storage device that the utility model provides, for the operating state of this big current.
Consult Fig. 6, the energy storage device that the utility model second embodiment provides, comprise body 101, first collector 102, first end cap 103, second collector 104, second end cap 105 and battery core 106,
First end cap 103, second end cap 105 is arranged at the two ends of body 101, body 101, first end cap 103 and the second end cap 105 form cavity, first collector 102, second collector 104 and battery core 106 are placed in cavity, the two ends of battery core 106 are connected with the first collector 102, second collector 104 respectively, first collector 102 is connected with the first end cap 103, second collector 104 is connected with the second end cap 105
First end cap 103 is provided with depressed part 107, and the first collector 102 is provided with the first lug boss 108, first collector 102 and the first end cap 103 interference fit coordinated with depressed part 107, and depressed part 107 is connected by the mode of welding with the first lug boss 108.
The cup depth of depressed part 107 matches with the height of projection of the first lug boss 108, and the first collector 102 and the first end cap 103 can be clamped mutually.The solder joint that depressed part 107 welds with the first lug boss 108 is positioned at the external joint place of depressed part 107 and the first lug boss 108, and then welding track when welding can directly be seen.When welding, if there is error, just can observe directly, being convenient to timely control, adjustment.
First collector 102 and the first end cap 103 adopt such connected mode, the space in body 101 can be made full use of, increase the contact area of the first collector 102 and the first end cap 103, the first collector 102 and the contact area of battery core 106, make the resistance of energy storage device less.And the solder joint that depressed part 107 welds with the first lug boss 108 is positioned at body 101, on the sealing of the cavity of energy storage device without any impact.
As the optimal way of the utility model embodiment, second collector 104 is integrated with body 101, second collector 104 and body 101 form the sunk structure coordinated with the second end cap 105, and the second collector 104 is connected by the mode of welding with the second end cap 105.
Adopt this structure, decrease the welding sequence that the second collector 104 is connected with body 101, avoid welding the resistive instability caused, it also avoid the high accuracy centered assembling that when the second collector 104 is connected with body 101, needs carry out, reduce frock precision, Simplified flowsheet requirement.Meanwhile, sunk structure makes the second end cap 105 more firm with the connection of body 101.
Meanwhile, contact area, second collector 104 of the second collector 104 and the second end cap 105 can maximize with the contact area of battery core 106, make the minimizing that the resistance of energy storage device is also corresponding.The welding track that second collector 104 welds with battery core 106 can cover the whole end face of battery core, and welding track is visible, controlled.
In the present embodiment, energy storage device is ultracapacitor or lithium battery.During the operating state of ultracapacitor or lithium battery, compared with general electric capacity or battery, have larger electric current, the structure of the energy storage device that the utility model provides, for the operating state of this big current.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. an energy storage device, is characterized in that, described energy storage device comprises body, the first collector, the first end cap, the second collector, the second end cap and battery core,
Described first end cap, described second end cap are arranged at the two ends of described body respectively, described body, described first end cap and described second end cap form cavity, described first collector, described second collector and described battery core are placed in described cavity, the two ends of described battery core are connected with described first collector, described second collector respectively, described first collector is connected with described first end cap, described second collector is connected with described second end cap
Described first end cap is provided with depressed part, described first collector is provided with the first lug boss coordinated with described depressed part, described first collector is connected with described first end cap interference fit, and described depressed part is connected by the mode of welding with described first lug boss.
2. energy storage device according to claim 1, is characterized in that, described first collector, described second collector are connected by the mode of welding with described battery core.
3. energy storage device according to claim 1, it is characterized in that, described second collector and described body are integrated, described second collector and described body form the sunk structure coordinated with described second end cap, and described second collector is connected by the mode of welding with described second end cap.
4. energy storage device according to claim 1, is characterized in that, described first end cap is provided with the second lug boss, and described second lug boss is arranged at the side of described first end cap away from described cavity.
5. energy storage device according to claim 1, is characterized in that, described second end cap is provided with the 3rd lug boss, and described 3rd lug boss is arranged at the side of described second end cap away from described cavity.
6. energy storage device according to claim 1, is characterized in that, described second end cap is provided with the through hole for injecting electrolyte, and described cavity is by described through hole and ft connection, and described energy storage device also comprises the stopper coordinated with described through hole.
7. energy storage device according to claim 6, it is characterized in that, described stopper comprises outer plug and interior plug, and described interior plug is arranged in described through hole, described outer plug is arranged at one end of described through hole and ft connection, and described outer plug is connected by the mode of welding with described second end cap.
8. energy storage device according to claim 1, is characterized in that, described energy storage device also comprises the insulated ring be arranged between described first end cap, described body, and described insulated ring is connected with described first end cap, described body respectively.
9. energy storage device according to claim 1, it is characterized in that, described energy storage device also comprises the sealing ring for sealing described cavity, the inwall of described body is provided with the 4th lug boss coordinated with described sealing ring, the inner side of described sealing ring is connected with described first end cap, and the outside of described sealing ring is connected with the inwall of described body.
10. the energy storage device according to claim 1-9 any one, is characterized in that, described energy storage device is ultracapacitor or lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642736.4U CN204216139U (en) | 2014-10-30 | 2014-10-30 | Energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642736.4U CN204216139U (en) | 2014-10-30 | 2014-10-30 | Energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204216139U true CN204216139U (en) | 2015-03-18 |
Family
ID=52984786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420642736.4U Active CN204216139U (en) | 2014-10-30 | 2014-10-30 | Energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204216139U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611471A (en) * | 2017-10-17 | 2018-01-19 | 广东正业科技股份有限公司 | A kind of battery and its manufacture method |
| DE102022132405A1 (en) | 2021-12-23 | 2024-06-06 | Skeleton Technologies GmbH | Process for producing a supercapacitor |
-
2014
- 2014-10-30 CN CN201420642736.4U patent/CN204216139U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611471A (en) * | 2017-10-17 | 2018-01-19 | 广东正业科技股份有限公司 | A kind of battery and its manufacture method |
| DE102022132405A1 (en) | 2021-12-23 | 2024-06-06 | Skeleton Technologies GmbH | Process for producing a supercapacitor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Effective date of registration: 20160325 Address after: 300350 Tianjin city high camp north gate model town Jinnan District Road No. 8 A District 2001-16 Patentee after: TIANJIN PULAN NANO TECHNOLOGY CO., LTD. Address before: 310000, Zhejiang, Hangzhou province Jianggan District Xiasha dream Bay 10, a unit 2704 Patentee before: Ou Kexing |