CN102930994A - High reliability electrochemical energy storage device vibration-proof structure - Google Patents
High reliability electrochemical energy storage device vibration-proof structure Download PDFInfo
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- CN102930994A CN102930994A CN2012104345863A CN201210434586A CN102930994A CN 102930994 A CN102930994 A CN 102930994A CN 2012104345863 A CN2012104345863 A CN 2012104345863A CN 201210434586 A CN201210434586 A CN 201210434586A CN 102930994 A CN102930994 A CN 102930994A
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Abstract
The invention discloses a high reliability electrochemical energy storage device vibration-proof structure. The high reliability electrochemical energy storage device vibration-proof structure comprises an outer shell, an electricity core and a current collector, the electricity core is arranged in the outer shell and electrically connected with the current collector, and an electrolyte is filled between the outer shell and the electricity core. The high reliability electrochemical energy storage device vibration-proof structure is characterized in that a plurality of grooves are arranged on the outer shell, a plurality of elastic parts are disposed on the outer surface of the electricity core, and the position of the electricity core in the outer shell is limited through the grooves and the elastic parts. According to the high reliability electrochemical energy storage device vibration-proof structure, a plurality of elastic sheets are introduced on the electricity core, the grooves are introduced on the outer shell, the electricity core is limited in a three-dimensional direction through the elastic sheets and the grooves, the elastic sheets can buffer the vibration amplitude, the stability of a device at vibration occasions is greatly improved, effectiveness loss caused by loose weld of the welding position between the electricity core and the current collector at the vibration occasions is effectively prevented, and conditions of electrode shelling, uncoiling and the like are effectively prevented.
Description
Technical field
The present invention relates to a kind of high reliability electrochemical energy storing device vibration-proof structure.
Background technology
Along with sharp increase and the socioeconomic fast development of world population, resource and the energy is shortage day by day, and biological environment goes from bad to worse, and the mankind will rely on clean and reproducible new forms of energy more, and 21 century has higher requirement to energy storage device.Electrochemical power source has obtained using widely as energy storage device, and is increasing to the demand of electrochemical energy storing device along with the development of China's electrical source of power industry, requires also more and more higher to its unfailing performance.
In order to adapt to the development such as emerging fields such as electric automobiles, the electrochemical energy storing device monomer size such as fuel cell, lithium ion battery, lithium-ion capacitance and ultracapacitor are increasing, at present these market-oriented products often have takeup type or stacked battery core is put into square or cylindrical structural then seals formation, and battery core apart from housing have certain flow and store gas that some device insides produce apart from electrolysis liquid be unlikely to make device stress excessive and lost efficacy.Be connected on the collector on the outside extraction electrode by being welded on owing to battery core two as shown in Figure 4, the weld that is in so the battery core of vacant state and collector just produces sealing-off easily and lost efficacy under the occasion of the especially dither of frequent vibration, affect the stability of electrochemical device.Unsettled battery core also can produce the unstable inefficacies such as electrode shedding and electrode roll uncoiling under high vibration condition simultaneously.
Also have the annular groove by being arranged on the shell that inner battery core is limited the anti-vibration structure of location in the prior art, but this structure can't the buffering vibration amplitude, still causes easily electrode shedding and electrode roll uncoiling situation.Also have in addition by between shell and Inner core the structure that flexible collar is come the buffering vibration amplitude being set, still this structure can intercept flowing of electrolyte.
Summary of the invention
The object of the invention is to for the above-mentioned easy sealing-off inefficacy of battery core and collector weld under the vibration occasion because battery core is unsettled, and the shortcomings such as electrode shedding and uncoiling, provide a kind of and can effectively limit the position of battery core in shell, and high reliability electrochemical energy storing device vibration-proof structure that can the buffering vibration amplitude.
The present invention adopts following technical scheme for achieving the above object:
A kind of high reliability electrochemical energy storing device vibration-proof structure comprises shell, battery core, collector; Described battery core setting is electrically connected with collector in the enclosure; Be filled with electrolyte between described shell and the battery core, it is characterized in that: be provided with a plurality of grooves on the described shell, described battery core outer surface is provided with a plurality of elastomeric elements, and battery core limits its position in shell by groove and elastomeric element.
It is further characterized in that: described groove evenly distributes at described shell axial and circumferential, and described elastomeric element is positioned at 1/2 axial place of battery core, and upwards evenly distributes in week, staggers mutually in groove and elastomeric element position.
Preferably: described elastomeric element is the shell fragment of the insulating material PTFE of high elastic modulus, is fixed on the battery core by high-performance high-temperature resistant anti-corrosive adhesive tape, and the height of shell fragment is slightly larger than the distance between battery core and the shell.
Further: described battery core is to have the cylindrical or stacked square structure of multilaminate coiled formula, and shell is slightly larger than the cylindrical or square structure of battery core for the size that is complementary with it.
Described battery core and collector are connected by the mode of welding, collector and shell by hot charging join, the mode of welding or bolt is connected and fixed.
Introduce many shell fragments on the battery core of the present invention, and introduce groove at housing, these shell fragments and groove structure are so that battery core is defined at three-dimensional, and shell fragment can also cushion Oscillation Amplitude, have greatly improved the stability of this device under the vibration occasion.Effectively prevent battery core and the inefficacy of collector weld sealing-off under the vibration occasion, and the situations such as electrode shedding and uncoiling occur.
Description of drawings
Fig. 1 is battery core schematic diagram of the present invention.
Fig. 2 is shell schematic diagram of the present invention.
Fig. 3 is structural representation of the present invention.
Fig. 4 is traditional cylindrical supercapacitor structures schematic diagram.
Embodiment
In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment and accompanying drawing, and this embodiment only is used for explaining the present invention, does not consist of the restriction to protection range of the present invention.The below makes an explanation to structure of the present invention for 3000F2.7V column type ultracapacitor.
The column type ultracapacitor comprises circular housing 1, circular battery core 2, collector 3 as shown in Figure 1, 2, 3; Described battery core 2 is arranged in the shell 1, is electrically connected with collector 3; Be filled with electrolyte between described shell 1 and the battery core 2, be provided with a plurality of grooves 11 on the described shell 1, described battery core 2 outer surfaces are provided with a plurality of shell fragments 21, and battery core 2 limits its position in shell 1 by groove 11 and shell fragment 21.
Described groove 11 evenly distributes at described shell 1 axial and circumferential, and described shell fragment 21 is positioned at 1/2 axial place of battery core 2, and upwards evenly distributes in week, staggers mutually in groove 11 and shell fragment 21 positions.
The insulating material PTFE material that described shell fragment 21 is high elastic modulus is fixed on the battery core 2 by high-performance high-temperature resistant anti-corrosive adhesive tape, and the height of shell fragment 21 is slightly larger than the distance between battery core 2 and the shell 1.
This example high reliability ultracapacitor such as following steps process:
1. then anodal, barrier film and the negative pole structure that forms first sandwich is rolled into the battery core that diameter is 57mm by coiling, and the outermost layer of battery core is that barrier film keeps electric insulation.
2. after two of battery core flattens, highly be 120 mm, and be welded into respectively two ends with the battery core of collector with the both positive and negative polarity collector.
3. will utilize Kapton Tape to be fixed on the outer middle position of battery core with 3 shell fragments that PTFE makes, 3 shell fragment 120 degree evenly distribute, and this battery core as shown in Figure 1.
4. the above-mentioned battery core with collector that fixes shell fragment being packed into has in the shell of even distribution groove, this shell as shown in Figure 2,6 grooves evenly distribute at shell 1/4 and 3/4 place, 120 degree, groove is spent with shell fragment 60 and is evenly staggered.
5. the shell of the battery core of will packing into is put into vacuum drying oven and is carried out vacuumize, then annotates electrolyte, sealing, test.
6. make according to the present structure of normal commercialization ultracapacitor with same material and make the 3000F2.7V ultracapacitor, the battery core that is about to have welded in the step 2 collector is directly packed into and is not had in the reeded shell, as shown in Figure 4.
Contrast adopts the present invention to introduce the high reliability ultracapacitor of outer casing groove structure and battery core fixation spring tab structure and without the ultracapacitor vibrationproof performance of this structure.
With Fig. 3 and ultracapacitor each 3 (invention 1, invention 2, inventions 3 shown in Figure 4; Common 1, common 2, common 3) carry out the contrast of initial situation electrical property, and carry out the vibration reliability test at vibration machine, vibration frequency is 100Hz, and acceleration is 1g, carries out the electrical property contrast after 1000 hours again.Shown in the table specific as follows:
| ? | Initial capacity | Capacity after the vibration | Initial internal resistance | Internal resistance after the |
| Invention | ||||
| 1 | 3163F | 3150?F | 0.243mohm | 0.243?mohm |
| Invention 2 | 3189?F | 3175?F | 0.238?mohm | 0.240?mohm |
| Invention 3 | 3172?F | 3161?F | 0.232?mohm | 0.235?mohm |
| Common 1 | 3201?F | 3108?F | 0.242?mohm | 0.471?mohm |
| Common 2 | 3149?F | 3030?F | 0.235?mohm | 0.398?mohm |
| Common 3 | 3179?F | 3068?F | 0.239?mohm | 0.425?mohm |
Can find out that from upper table data high reliability ultracapacitor of the present invention electrical property behind the reliability vibration-testing is substantially constant, and not have the common capacity of super capacitor decay of shell fragment of the present invention and groove structure obvious, internal resistance is increased 2 times nearly, crash.Dissect device, common super capacitor anode collector is the part sealing-off, and existing carbon dust comes off in electrolyte, and that the present invention has a ultracapacitor of vibration-proof structure is substantially unchanged, has proved high reliability of the present invention.
Claims (5)
1. a high reliability electrochemical energy storing device vibration-proof structure comprises shell, battery core, collector; Described battery core setting is electrically connected with collector in the enclosure; Be filled with electrolyte between described shell and the battery core, it is characterized in that: be provided with a plurality of grooves on the described shell, described battery core outer surface is provided with a plurality of elastomeric elements, and battery core limits its position in shell by groove and elastomeric element.
2. high reliability electrochemical energy storing device vibration-proof structure according to claim 1, it is characterized in that: described groove evenly distributes at described shell axial and circumferential, described elastomeric element is positioned at 1/2 axial place of battery core, and in upwards evenly distribution of week, stagger mutually in groove and elastomeric element position.
3. high reliability electrochemical energy storing device vibration-proof structure according to claim 1, it is characterized in that: described elastomeric element is the shell fragment of the insulating material of high elastic modulus, be fixed on the battery core by high-performance high-temperature resistant anti-corrosive adhesive tape, the height of shell fragment is slightly larger than the distance between battery core and the shell.
4. high reliability electrochemical energy storing device vibration-proof structure according to claim 1 and 2, it is characterized in that: described battery core is to have the cylindrical or stacked square structure of multilaminate coiled formula, and shell is slightly larger than the cylindrical or square structure of battery core for the size that is complementary with it.
5. high reliability electrochemical energy storing device vibration-proof structure according to claim 1 is characterized in that: described battery core is connected with the mode of collector by welding, collector and shell by hot charging join, the mode of welding or bolt is connected and fixed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210434586.3A CN102930994B (en) | 2012-11-01 | 2012-11-01 | A kind of high reliability electrochemical energy storage device vibration-proof structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210434586.3A CN102930994B (en) | 2012-11-01 | 2012-11-01 | A kind of high reliability electrochemical energy storage device vibration-proof structure |
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| CN102930994A true CN102930994A (en) | 2013-02-13 |
| CN102930994B CN102930994B (en) | 2016-03-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112397757A (en) * | 2020-11-13 | 2021-02-23 | 上海捷氢科技有限公司 | Fuel cell stack packaging structure, packaging box body thereof and cell structure |
| CN114337056A (en) * | 2021-12-31 | 2022-04-12 | 法罗适(上海)医疗技术有限公司 | Motor radiating assembly, motor radiating system and mainframe box for wire-drive gloves |
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| JP2000243670A (en) * | 1999-02-17 | 2000-09-08 | Matsushita Electric Ind Co Ltd | Electrical double-layer capacitor and manufacture of the same |
| CN1430233A (en) * | 2001-12-18 | 2003-07-16 | 松下电器产业株式会社 | Aluminium electrolytic capacitor and its making method |
| JP2004311831A (en) * | 2003-04-09 | 2004-11-04 | Elna Co Ltd | Electric double layer capacitor |
| CN201256077Y (en) * | 2008-08-13 | 2009-06-10 | 厦门法拉电子股份有限公司 | Shockproof structure for explosion-proof capacitor |
| CN201408808Y (en) * | 2009-05-27 | 2010-02-17 | 佛山市实达科技有限公司 | Improved structure of nickel-metal hydride battery |
| CN202996930U (en) * | 2012-11-01 | 2013-06-12 | 海博瑞恩电子科技无锡有限公司 | Highly-reliable vibration-proof structure of electrochemistry energy storage device |
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2012
- 2012-11-01 CN CN201210434586.3A patent/CN102930994B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000243670A (en) * | 1999-02-17 | 2000-09-08 | Matsushita Electric Ind Co Ltd | Electrical double-layer capacitor and manufacture of the same |
| CN1430233A (en) * | 2001-12-18 | 2003-07-16 | 松下电器产业株式会社 | Aluminium electrolytic capacitor and its making method |
| JP2004311831A (en) * | 2003-04-09 | 2004-11-04 | Elna Co Ltd | Electric double layer capacitor |
| CN201256077Y (en) * | 2008-08-13 | 2009-06-10 | 厦门法拉电子股份有限公司 | Shockproof structure for explosion-proof capacitor |
| CN201408808Y (en) * | 2009-05-27 | 2010-02-17 | 佛山市实达科技有限公司 | Improved structure of nickel-metal hydride battery |
| CN202996930U (en) * | 2012-11-01 | 2013-06-12 | 海博瑞恩电子科技无锡有限公司 | Highly-reliable vibration-proof structure of electrochemistry energy storage device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112397757A (en) * | 2020-11-13 | 2021-02-23 | 上海捷氢科技有限公司 | Fuel cell stack packaging structure, packaging box body thereof and cell structure |
| CN114337056A (en) * | 2021-12-31 | 2022-04-12 | 法罗适(上海)医疗技术有限公司 | Motor radiating assembly, motor radiating system and mainframe box for wire-drive gloves |
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| CN102930994B (en) | 2016-03-30 |
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Address after: No. 288 Lake Technology Park eighteen Bay Road District 214100 in Jiangsu province Wuxi City foreshore building No. 2 Patentee after: GMCC ELECTRONIC TECHNOLOGY WUXI CO., LTD. Address before: No. 288 Lake Technology Park eighteen Bay Road District 214100 in Jiangsu province Wuxi City foreshore building No. 2 Patentee before: Haibo Ryan Electronic Technology Wuxi Co., Ltd. |
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