CN102930994B - A kind of high reliability electrochemical energy storage device vibration-proof structure - Google Patents
A kind of high reliability electrochemical energy storage device vibration-proof structure Download PDFInfo
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- CN102930994B CN102930994B CN201210434586.3A CN201210434586A CN102930994B CN 102930994 B CN102930994 B CN 102930994B CN 201210434586 A CN201210434586 A CN 201210434586A CN 102930994 B CN102930994 B CN 102930994B
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Abstract
The present invention discloses a kind of high reliability electrochemical energy storage device vibration-proof structure, comprises shell, battery core, collector; Described battery core is arranged in the enclosure, is electrically connected with collector; Be filled with electrolyte between described shell and battery core, it is characterized in that: described shell is provided with multiple groove, described battery core outer surface is provided with multiple elastomeric element, and battery core limits its position in shell by groove and elastomeric element.Battery core of the present invention is introduced many shell fragments, and introduce groove on housing, these shell fragments and groove structure make battery core be defined on three-dimensional, and shell fragment can also cushion Oscillation Amplitude, substantially increase the stability of this device under vibration occasion.Effectively prevent battery core and collector weld sealing-off under vibration occasion to lose efficacy, and the situation such as electrode shedding and uncoiling occur.
Description
Technical field
The present invention relates to a kind of high reliability electrochemical energy storage device vibration-proof structure.
Background technology
Along with sharp increase and the socioeconomic fast development of world population, resource and the energy are day by day short, 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 as energy storage device and has used widely, along with the development of China's electrical source of power industry, increasing to the demand of electrochemical energy storing device, requires also more and more higher to its unfailing performance.
In order to adapt to the development 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 marketable product often have takeup type or stacked battery core and put into square or cylindrical structural and then seal formation, and battery core distance housing has certain distance electrolysis liquid flowing and store the gas that some device insides produce is unlikely to make device stress excessive and lost efficacy.As shown in Figure 4 because battery core two is connected on outside extraction electrode by welding on a current collector, the weld being so in the battery core of vacant state and collector is just easy to be produced sealing-off and lost efficacy under the occasion of the especially dither of frequent vibration, affects the stability of electrochemical device.Unsettled battery core also can produce the inefficacy of the instability such as electrode shedding and electrode roll uncoiling under high vibration conditions simultaneously.
Also have the anti-vibration structure carrying out limiting location by being arranged on annular groove on shell to inner battery core in prior art, but this structure cannot buffering vibration amplitude, or easily cause electrode shedding and electrode roll uncoiling situation.Also have in addition by arranging the structure that flexible collar carrys out buffering vibration amplitude between shell and Inner core, but this structure can intercept the flowing of electrolyte.
Summary of the invention
The object of the invention is to for above-mentioned due to battery core unsettled and under vibration occasion battery core and the easy sealing-off of collector weld lost efficacy, and the shortcoming such as electrode shedding and uncoiling, there is provided a kind of and effectively can limit the position of battery core in shell, and can the high reliability electrochemical energy storage device vibration-proof structure of buffering vibration amplitude.
The present invention for achieving the above object, adopts following technical scheme:
A kind of high reliability electrochemical energy storage device vibration-proof structure, comprises shell, battery core, collector; Described battery core is arranged in the enclosure, is electrically connected with collector; Be filled with electrolyte between described shell and battery core, it is characterized in that: described shell is provided with multiple groove, described battery core outer surface is provided with multiple elastomeric element, and battery core limits its position in shell by groove and elastomeric element.
It is further characterized in that: described groove is uniformly distributed at described shell axial and circumferential, and described elastomeric element is positioned at 1/2 place of battery core axis, and is uniformly distributed in the circumferential, staggers mutually in groove and elastomeric element position.
Preferred: described elastomeric element is the shell fragment of the insulating material PTFE of high elastic modulus, is fixed in 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 shell.
Further: described battery core is have the cylindrical or stacked square structure of multilaminate coiled formula, shell is that the size that matches with it is slightly larger than the cylindrical of battery core or square structure.
Described battery core is connected by the mode of welding with collector, and collector is joined by hot charging with shell, weld or the mode of bolt is connected and fixed.
Battery core of the present invention is introduced many shell fragments, and introduce groove on housing, these shell fragments and groove structure make battery core be defined on three-dimensional, and shell fragment can also cushion Oscillation Amplitude, substantially increase the stability of this device under vibration occasion.Effectively prevent battery core and collector weld sealing-off under vibration occasion to lose efficacy, and the situation such as electrode shedding and uncoiling occur.
Accompanying drawing explanation
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, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.For 3000F2.7V column type ultracapacitor, structure of the present invention is made an explanation below.
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 shell 1, is electrically connected with collector 3; Be filled with electrolyte between described shell 1 and battery core 2, described shell 1 is provided with multiple groove 11, described battery core 2 outer surface is provided with multiple shell fragment 21, and battery core 2 limits its position in shell 1 by groove 11 and shell fragment 21.
Described groove 11 is uniformly distributed at described shell 1 axial and circumferential, and described shell fragment 21 is positioned at 1/2 place of battery core 2 axis, and is uniformly distributed in the circumferential, staggers mutually in groove 11 and shell fragment 21 position.
Described shell fragment 21 is the insulating material PTFE material of high elastic modulus, is fixed in 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 shell 1.
This example high reliability ultracapacitor such as following steps process:
1. positive pole, barrier film and negative pole first form the structure of sandwich then by being rolled into the battery core that diameter is 57mm, and the outermost layer of battery core is that barrier film keeps electric insulation.
2. be highly 120mm after two of battery core flattens, and be welded into the battery core of two ends with collector respectively with both positive and negative polarity collector.
3. utilize Kapton Tape to be fixed on the outer middle position of battery core on make with PTFE 3 shell fragments, 120 degree, 3 shell fragments are uniformly distributed, and this battery core as shown in Figure 1.
4. the above-mentioned battery core fixing the band collector of shell fragment being loaded to have is uniformly distributed in the shell of groove, and as shown in Figure 2,6 grooves are uniformly distributed at 120 degree, shell 1/4 and 3/4 place this shell, and groove and 60 degree, shell fragment evenly stagger.
5. the shell loading battery core is put into vacuum drying oven and carry out vacuumize, then note electrolyte, sealing, test.
6. make with same material and make 3000F2.7V ultracapacitor according to the structure of current normal commercialization ultracapacitor, directly load by the battery core of having welded collector in step 2 and do not have in 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 the ultracapacitor vibrationproof performance without this structure.
By each for the ultracapacitor shown in Fig. 3 and Fig. 43 (invention 1, invention 2, inventions 3; Common 1, common 2, common 3) carry out the contrast of initial situation electrical property, and carry out vibration reliability test on a vibration table, vibration frequency is 100Hz, and acceleration is 1g, carries out electrical property contrast again after 1000 hours.Shown in table specific as follows:
| Initial capacity | Capacity after vibration | Initial internal resistance | Internal resistance after vibration | |
| 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 |
As can be seen from upper table data, high reliability ultracapacitor of the present invention electrical property after reliability vibration-testing is substantially constant, and does not have the common capacity of super capacitor decay of shell fragment of the present invention and groove structure obvious, and internal resistance increases 2 times nearly, crash.Dissect device, common super capacitor anode collector part sealing-off, existing carbon dust comes off in electrolyte, and the ultracapacitor that the present invention has vibration-proof structure is substantially unchanged, demonstrates high reliability of the present invention.
Claims (4)
1. a high reliability electrochemical energy storage device vibration-proof structure, comprises shell, battery core, collector; Described battery core is arranged in the enclosure, is electrically connected with collector; Be filled with electrolyte between described shell and battery core, it is characterized in that: described shell is provided with multiple groove, described battery core outer surface is provided with multiple separate elastomeric element, is not interconnected by miscellaneous part between described elastomeric element; Battery core limits its position in shell by groove and elastomeric element; Described groove is uniformly distributed at described shell axial and circumferential, and described elastomeric element is positioned at 1/2 place of battery core axis, and is uniformly distributed in the circumferential, staggers mutually in groove and elastomeric element position.
2. high reliability electrochemical energy storage 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 in 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 shell.
3. high reliability electrochemical energy storage device vibration-proof structure according to claim 1, it is characterized in that: described battery core is have the cylindrical or stacked square structure of multilaminate coiled formula, shell is that the size that matches with it is slightly larger than the cylindrical of battery core or square structure.
4. high reliability electrochemical energy storage device vibration-proof structure according to claim 1, is characterized in that: described battery core is connected by the mode of welding with collector, and collector is joined by hot charging with shell, weld or the mode of bolt is connected and fixed.
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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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| 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 CN102930994A (en) | 2013-02-13 |
| CN102930994B true CN102930994B (en) | 2016-03-30 |
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| 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 |
| CN114337056B (en) * | 2021-12-31 | 2022-09-13 | 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (2)
| 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 |
| JP4415558B2 (en) * | 2003-04-09 | 2010-02-17 | エルナー株式会社 | Electric double layer capacitor |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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