CN210223796U - Energy storage and sensing integrated super capacitor capable of resisting overload impact - Google Patents
Energy storage and sensing integrated super capacitor capable of resisting overload impact Download PDFInfo
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- CN210223796U CN210223796U CN201921038287.1U CN201921038287U CN210223796U CN 210223796 U CN210223796 U CN 210223796U CN 201921038287 U CN201921038287 U CN 201921038287U CN 210223796 U CN210223796 U CN 210223796U
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- 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
- Y02E60/13—Energy storage using capacitors
Abstract
The utility model provides an energy storage and sensing integrated super capacitor capable of resisting overload impact, which comprises a capacitor core and a shell; the capacitor core is encapsulated in a shell through high-strength resin, and the shell is made of hard metal; the capacitor core comprises: the first metal current collector, the first elastic support body, the vacuum imbibing module, the second elastic support body and the second metal current collector are sequentially connected in a layered stacking manner to obtain a laminated structure; the elastic object comprises an elastic object and an energy storage module, the energy storage module is filled in the elastic object, the energy storage module comprises a first elastic electrode, a diaphragm and a second elastic electrode, and the first elastic electrode, the diaphragm and the second elastic electrode are sequentially stacked in a layered manner to obtain a laminated structure; the vacuum imbibing module comprises a third metal current collector, a fourth metal current collector and a fifth metal current collector which are sequentially connected in a layered stacking manner to obtain a stacked structure.
Description
Technical Field
The utility model relates to a new material and new forms of energy technical field especially relate to an energy storage and sensing integration ultracapacitor system that can anti overload impact.
Background
Super capacitor energy storage technology
1. Electric double layer super capacitor: when the electrodes are charged, the charges on the surfaces of the positive and negative electrodes attract the opposite ions in the electrolyte solution around, so that the ions are adsorbed on the surfaces of the electrodes to form a double-charge layer, and a double-electric-layer super capacitor is formed, thereby realizing energy storage;
2. pseudocapacitance ultracapacitor: when the electrode is electrified, the metal oxide coating on the surface of the electrode and electrolyte generate oxidation-reduction reaction to generate a base coordination compound, the base coordination compound is reduced into metal oxide during discharging, and energy storage is realized through the oxidation-reduction reaction of the metal oxide;
the two capacitors only have energy storage and supply capabilities, but not sensing capabilities.
Sensing technology
1. Piezoelectric sensing technology: when the PVDF membrane is acted by an external force in a certain fixed direction, an electric polarization phenomenon is generated inside the PVDF membrane, and charges with opposite signs are generated on certain two surfaces to form a certain potential difference, so that voltage change is triggered, and a sensing function is realized;
2. piezoresistive sensing technology: when the elastic piezoresistive electrode is subjected to the action of external force, the thickness of the electrode can be changed, the resistance of the electrode can be mutated, voltage change is caused, and the sensing function is realized;
3. capacitive sensing technology: the capacitance change of the capacitor is triggered by changing the distance between the capacitor polar plates, so that the purpose of voltage change is achieved, and the sensing function is realized;
4. the electrochemical sensing technology is characterized in that electrolyte is used as inertial mass, and when the inertial mass is impacted, convection current is formed nearby an electrode to cause the change of ion concentration nearby the electrode, so that voltage change is formed, and the sensing function is realized;
the four sensors only have sensing function, but do not have energy storage capacity and energy supply capacity.
In the prior art, a sensor has a sensing function but no energy storage function, a capacitor has an energy storage function but no sensing function, and when the sensor needs to be used, a power supply needs to be connected externally; and when need use the condenser and carry out the sensing simultaneously, must install two devices simultaneously, lead to equipment occupation space big, be unfavorable for holistic miniaturization, consequently, need one kind at present can resist the energy storage and the sensing integration ultracapacitor system that transship assaults urgently, realize that the sensor possesses the energy storage function simultaneously, need not adopt the battery power supply in addition, save the volume.
SUMMERY OF THE UTILITY MODEL
The utility model provides an energy storage and sensing integration ultracapacitor system that can anti overload impact to sensor does not store energy and condenser do not sense and lead to the volume too big among the solution prior art, and the technical problem of sensing inefficacy when receiving high overload impact, thereby combine to establish a ultracapacitor system that can realize energy storage and sensing function simultaneously and need not external battery through condenser energy storage principle and sensor sensing principle, in order to realize the energy storage, energy supply and sensing function integration are in a device.
In order to solve the technical problem, an embodiment of the present invention provides an energy storage and sensing integrated super capacitor capable of resisting overload impact, including a capacitor core and a housing; the capacitor core is encapsulated in the shell through high-strength resin, and the shell is made of hard metal;
the capacitor core includes: the device comprises a first metal current collector, a first elastic support body, a vacuum imbibing module, a second elastic support body and a second metal current collector;
the first metal current collector, the first elastic support, the vacuum imbibing module, the second elastic support and the second metal current collector are sequentially stacked in a layered manner to obtain a stacked structure;
the elastic support body comprises an elastic object and an energy storage module, the energy storage module is filled in the elastic object, the energy storage module comprises a first elastic electrode, a diaphragm and a second elastic electrode, and the first elastic electrode, the diaphragm and the second elastic electrode are sequentially stacked in a layered manner to obtain a laminated structure;
the vacuum imbibition module comprises a third metal current collector, a fourth metal current collector and a fifth metal current collector, wherein the third metal current collector, the fourth metal current collector and the fifth metal current collector are sequentially connected in a layered stacking manner to obtain a laminated structure.
Preferably, the first metal current collector and the first elastic support, the first elastic support and the vacuum imbibing module, the vacuum imbibing module and the second elastic support, and the second elastic support and the second metal current collector are bonded together by an adhesive to form a point adhesive layer.
Preferably, the elastic body is high-elasticity rubber.
As a preferred scheme, the third metal current collector and the fourth metal current collector, and the fourth metal current collector and the fifth metal current collector are bonded together by an adhesive to form a spot adhesive layer.
As a preferred scheme, a first point glue layer between the third metal current collector and the fourth metal current collector, and a second point glue layer between the fourth metal current collector and the fifth metal current collector both have a notch.
Preferably, the notches on the first dispensing layer and the second dispensing layer are aligned in position and orientation.
Preferably, the third metal current collector and the fifth metal current collector are both of an annular structure; the fourth metal current collector is of a sheet structure.
Preferably, the elastic body is a ring-shaped structure.
Preferably, the shape of the super capacitor comprises a circle, a square, a triangle or various profiles.
Preferably, the elastic support and the vacuum liquid absorption module control the working voltage and capacitance of the device through increasing and decreasing the internal series number, and the sensing range and sensitivity can be changed by changing the internal series number, so that the vacuum liquid absorption module is suitable for more application scenes.
Compared with the prior art, the embodiment of the utility model provides a have following beneficial effect:
the utility model discloses a combine two kinds of supercapacitors's of pseudo-capacitor ultracapacitor system and electric double layer ultracapacitor system energy storage principle to realize the energy storage of device, and realize the sensing response of device through combining piezoelectric sensor, piezoresistive sensor, capacitive sensor and electrochemical sensor's multiple sensing principle, it can realize energy storage and sensing function simultaneously and need not the ultracapacitor system of external battery to construct one kind, the device volume has been saved, and adopt stereoplasm metal shell and high strength resin embedment, realized can the resistance under the high overload impact condition, strengthen the impact resistance ability.
Drawings
FIG. 1: is a schematic diagram of the integral structure of the integrated super capacitor in the embodiment of the utility model;
FIG. 2: is a schematic structural diagram of an energy storage module in the embodiment of the utility model;
FIG. 3: is a schematic structural diagram of a vacuum imbibing module in the embodiment of the utility model;
FIG. 4: do the embodiment of the utility model provides an in the embodiment the principle sketch of realization sensing effect.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, a preferred embodiment of the present invention provides an energy storage and sensing integrated super capacitor capable of resisting overload impact, which includes a capacitor core and a housing; the capacitor core is encapsulated in the shell through high-strength resin, and the shell is made of hard metal;
the capacitor core includes: the device comprises a first metal current collector, a first elastic support body, a vacuum imbibing module, a second elastic support body and a second metal current collector;
the first metal current collector, the first elastic support, the vacuum imbibing module, the second elastic support and the second metal current collector are sequentially stacked in a layered manner to obtain a stacked structure;
the elastic support body comprises an elastic object and an energy storage module, the energy storage module is filled in the elastic object, the energy storage module comprises a first elastic electrode, a diaphragm and a second elastic electrode, and the first elastic electrode, the diaphragm and the second elastic electrode are sequentially stacked in a layered manner to obtain a laminated structure;
the vacuum imbibition module comprises a third metal current collector, a fourth metal current collector and a fifth metal current collector, wherein the third metal current collector, the fourth metal current collector and the fifth metal current collector are sequentially connected in a layered stacking manner to obtain a laminated structure.
In this embodiment, the first metal current collector and the first elastic support, the first elastic support and the vacuum imbibing module, the vacuum imbibing module and the second elastic support, and the second elastic support and the second metal current collector are bonded together by an adhesive to form a point adhesive layer.
The device adopts the design of stromatolite formula structure, carry out the stratiform with the metal mass flow body, elastic object and vacuum imbibition module and pile up, adopt the gluing agent to bond between the layer, the specific structure is as following figure, the superiors are the titanium alloy mass flow body of surface sintering ruthenium oxide film, as the one utmost point of device, the next floor is annular high-elastic rubber, annular rubber is inside to be the pressure drag electrode and silver-plated PVDF diaphragm, the next lower floor is vacuum imbibition module, the next lower floor is annular high-elastic rubber, the lower floor is the metal mass flow body as the other utmost point of device, all adopt the gluing agent to bond between each layer.
In this embodiment, the elastic body is a high elastic rubber.
In this embodiment, the elastic object is a ring-shaped structure.
In this embodiment, the elastic support and the vacuum imbibing module control the operating voltage and capacitance of the device by increasing and decreasing the number of internal series connections.
Referring to fig. 2, the energy storage module is fixed and sealed by an annular elastic object, the interior of the energy storage module is of a laminated structure and is totally divided into three layers, the upper layer is an elastic piezoresistive electrode, the middle layer is a silver-plated PVDF diaphragm, and the lower layer is also an elastic piezoresistive electrode.
In this embodiment, the third metal current collector and between the fourth metal current collectors, the fourth metal current collector and between the fifth metal current collectors are all bonded through an adhesive to form a spot adhesive layer.
In this embodiment, the third metal current collector with first point glue film between the fourth metal current collector, and the fourth metal current collector with second point glue film between the fifth metal current collector all has the breach.
In this embodiment, the positions of the notch on the first dispensing layer and the notch on the second dispensing layer face in the same direction.
In this embodiment, the third metal current collector and the fifth metal current collector are both annular structures; the fourth metal current collector is of a sheet structure.
Referring to fig. 3, the internal structure of the vacuum imbibing module: the superiors adopt the titanium alloy mass flow body of annular surface sintering ruthenium oxide film, the intermediate level adopts the slice mass flow body, upper strata and intermediate level adopt the hot melt adhesive point to glue the mode and bond, design one section breach as the vacuum liquid absorption mouth during point is glued, the lower floor also adopts the titanium alloy mass flow body of annular surface sintering ruthenium oxide film, also adopts the some glue films that have the breach to bond between the layer, and the breach orientation is unanimous with upper strata point glue layer breach orientation.
In the present embodiment, the shape of the supercapacitor includes a circle, a square, a triangle, or various profiles. The device can be made of titanium alloy current collectors with different shapes and high-elasticity rubber elastic objects, and can be made into various shapes such as a round shape, a square shape, a triangular shape and the like, so that the shape customization of the device is realized.
For adapting to different application scenes, need to produce the device that can use under different voltage conditions, the utility model discloses can be through the operating voltage and the electric capacity of the mode control device of controlling inside series module quantity to can realize the control to the sensing volume scope through the module that increases or reduces the series connection.
As shown in fig. 4, the sensing effect is achieved by utilizing the sudden change of voltage generated when the device is impacted. In the discharging process, the device is impacted, and the whole device is deformed after being impacted, so that the response of piezoelectric, piezoresistive, capacitive and electrochemical sensing principles is triggered, voltage mutation is formed, and the sensing effect is achieved.
The utility model discloses super capacitor has realized the self-sensing function of energy storage device, realizes pressure drag and piezoelectric type sensing function through adopting pressure drag formula active carbon elastic electrode and silvering PVDF diaphragm in super capacitor to utilize the shape change and the inside flow of electrolyte when the elastic object receives the impact to realize capacitanc and electrochemical type sensing function;
the utility model discloses ultracapacitor system has still realized sensor's self-powered function, through the inside stromatolite formula structure that adopts the active carbon electrode, has realized the energy storage of electric double layer ultracapacitor system, has the RuO of ruthenium oxide film through adopting the surface2/H2SO4The system and the internal self-series laminated structure realize the energy storage of the pseudo-capacitor super capacitor.
The utility model discloses ultracapacitor system has still realized the sensitive response in succession to the high-frequency high overload impact; different energy storage or sensing principles are applied through different selections of the pole piece diaphragm; the shape of the device can be specially customized, and the device can be made into different shapes by adopting the metal current collectors and the rubber gaskets in different shapes, so that the device is suitable for different application scenes and environments; the voltage of the device can be freely adjusted, the use requirements under various power supply environments can be met, and the flexible adjustment of the use voltage and the capacitance of the device can be realized by controlling the number of the monomers which are self-connected in series in the device; the device realizes free adjustment of the sensing measurement range, meets various application scenes, and can realize flexible adjustment of the sensing measurement range of the device by controlling the number of the monomers which are self-connected in series in the device; by utilizing the modularized assembly technology and the line production, the small-batch manufacturing of the devices is realized, the elastic object parts, the vacuum liquid suction module and the energy storage module are manufactured in batches and then are sequentially assembled, the high manufacturing efficiency can be realized, and the good stability and consistency can be ensured.
The traditional sensor usually needs an external power supply, so that the energy supply of the sensor and the recording and feedback of sensing information are maintained, the sensor cannot better cope with high-frequency impact signals, the signals cannot be accurately recorded, and the 'energy storage-sensing' integrated super capacitor combines the advantages of multiple sensing mechanisms, and has the advantages of high precision, wide sensing range and extremely fast response time, so that the device has accurate and sensitive counting response capability under the high-frequency impact condition.
The common super capacitor or sensor is easy to lose efficacy due to poor shock resistance of each part under the condition of high overload impact, and the integrated super capacitor of energy storage and sensing adopts high-strength metal as a support and adopts a hard metal shell and a high-strength resin encapsulation process, so that the conditions of liquid leakage, deformation and the like caused by impact are avoided, and the normal and stable operation of the device under the condition of high overload impact is realized.
Flexible packaging technology: the flexible packaging method for sealing by using the annular high-elastic rubber ring adopts annular rubber as a sealing ring, and utilizes a binder to bond and seal the support rubber and the current collector metal, so that the device has certain compressibility in the thickness direction under the impact condition, after the external force is removed, the rubber rebounds, the device can recover the original shape, and the capacitive sensing function of the device is realized;
vacuum imbibition technology: the metal pole pieces with the holes and the metal pole pieces are laminated in a dispensing mode to manufacture the vacuum liquid suction module, and a dispensing notch is designed to serve as a vacuum liquid suction port, so that multiple functions of intercommunication of monomer cavities, fixation of the pole pieces, sharing of a current collector between modules and the like are realized;
overload impact resistant packaging technology: the metal shell is used, and the device is encapsulated in the shell by high-strength resin, so that the overall impact resistance of the device can be greatly improved;
modular assembly technology: the device is divided into an energy storage module, a vacuum liquid absorption module and a sensing module by utilizing different functional purposes of each part of the device, and small-batch manual manufacturing of the device is realized by manufacturing each functional module in batch and assembling each functional module.
The metal pole piece can use a metal oxide pole piece and a metal pole piece without active substances, wherein the metal oxide pole piece has strong activity, the metal oxide pole piece is used for applying the energy storage principle of a pseudo-capacitor super capacitor, the main component of the elastic electrode is activated carbon, and the energy storage principle of a double electric layer super capacitor is applied; the elastic electrode in the invention can use a piezoresistive electrode and an electric double layer sheet electrode, wherein, the piezoresistive sensing principle is applied, the piezoresistive electrode is used for sensing by pressure, and the electric double layer sheet electrode is used for sensing by the capacitance sensing principle and realizes sensing by voltage between electric double layers; the metal diaphragm can use a silver-plated PVDF diaphragm and a PTFE diaphragm, wherein the silver-plated PVDF (polyvinylidene fluoride) diaphragm can be polarized on two surfaces of the diaphragm to generate potential difference when being subjected to overload impact after being subjected to polarization pretreatment, and the piezoelectric sensing principle is applied; the PTFE (polytetrafluoroethylene) diaphragm has the characteristics of good acid and alkali resistance, corrosion resistance and the like, and has excellent overload impact resistance.
The utility model discloses produce a novel micro energy device, at first, this device has integrateed electric double layer super capacitor and pseudo electric capacity super capacitor's energy storage function and piezoelectric sensor, piezoresistive sensor, capacitive sensor and electrochemical sensor's sensing function, has combined super capacitor's energy storage principle and the sensing principle of sensor, through adopting RuO2/H2SO4Pseudocapacitive supercapacitor system, and activated carbon/H2SO4The double electric layer super capacitor system meets the application requirements of energy storage and energy supply of the device; the piezoelectric sensing effect under an impact environment is realized by adopting a silver-plated PVDF membrane, when the membrane is impacted, polarization can occur, electrons can be concentrated on one side of the membrane, so that a potential difference is formed, voltage change is caused, and the piezoelectric sensing function is realized; the elastic piezoresistive electrode manufactured by rubber and an activated carbon electrode is used as a functional part of the piezoresistive sensor, when the piezoresistive sensor is impacted, the piezoresistive electrode deforms, the resistance value of the piezoresistive electrode changes due to the deformation, voltage fluctuation is generated in the charging and discharging processes, the piezoresistive sensing function is realized, meanwhile, the activated carbon electrode can also be used as a pole piece of a double electric layer super capacitor for storing energy, the activated carbon electrode can adsorb anions and cations in electrolyte, and potential difference is formed on two sides of a diaphragm, so that energy storage is realized; device adoption of H2SO4As electrolyte, the electrolyte can move along the impact direction when being impacted, so that a certain concentration difference is formed inside the device, the change of the concentration difference of the local electrolyte inside the device can cause the charge distribution of each part inside the device to be uneven, a potential difference is formed inside the device, so that the voltage change is caused, and the electrochemical sensing function of the device is realized(ii) a The titanium alloy is used as a current collector of the device, rubber is used as an elastic object between metal current collector layers, and when the elastic object is impacted, the elastic object is compressed, so that the distance between the two current collectors is reduced, the capacitance value of the capacitor is changed, the voltage of the device is changed, and the capacitance type sensing of the device is realized.
The utility model realizes the dual functions of energy storage and sensing by a single device, and reduces the volume of the sensing system to a certain extent; secondly, the utility model adopts a laminated internal self-series design mode with titanium alloy and high-elastic rubber as main bodies, which reduces the redundant space inside the device to the maximum extent, has no redundant gap structure, avoids the mechanical failures such as welding spot failure, structural fracture and the like caused by overlarge local stress in the impact process, and also avoids the possibility of failure of external leads and circuit elements under high impact load; thirdly, the stacked expandable structure enables the device to flexibly adjust the sensing range and voltage, and expands the application range and application scene of the device; fourthly, the metal shell is adopted, and high-strength resin is adopted for encapsulation, so that the shock resistance is strong, and the reliability of the device is greatly improved.
The utility model discloses develop a novel micro-energy device of a section, change traditional sensor and need rely on outside energy supply and the poor shortcoming of anti overload impact ability, realize device self energy storage and energy supply to improve sensitive response and the accurate count problem of traditional sensor can't be under the high-frequency high overload impact condition, realized sensitive response and accurate count under the high-frequency high overload impact condition.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention. It should be understood that any modification, equivalent replacement, or improvement made by those skilled in the art without departing from the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An energy storage and sensing integrated super capacitor capable of resisting overload impact is characterized by comprising a capacitor core and a shell; the capacitor core is encapsulated in the shell through high-strength resin, and the shell is made of hard metal;
the capacitor core includes: the device comprises a first metal current collector, a first elastic support body, a vacuum imbibing module, a second elastic support body and a second metal current collector;
the first metal current collector, the first elastic support, the vacuum imbibing module, the second elastic support and the second metal current collector are sequentially connected in a layered stacking manner to obtain a stacked structure;
the elastic support body comprises an elastic object and an energy storage module, the energy storage module is filled in the elastic object, the energy storage module comprises a first elastic electrode, a diaphragm and a second elastic electrode, and the first elastic electrode, the diaphragm and the second elastic electrode are sequentially stacked in a layered manner to obtain a laminated structure;
the vacuum imbibition module comprises a third metal current collector, a fourth metal current collector and a fifth metal current collector, wherein the third metal current collector, the fourth metal current collector and the fifth metal current collector are sequentially connected in a layered stacking manner to obtain a laminated structure.
2. An energy storage and sensing integrated supercapacitor capable of resisting overload impact according to claim 1, wherein the first metal current collector and the first elastic support, the first elastic support and the vacuum imbibing module, the vacuum imbibing module and the second elastic support, and the second elastic support and the second metal current collector are bonded together by an adhesive to form a point adhesive layer.
3. The integrated energy storage and sensing supercapacitor of claim 1, wherein the elastic body is a high elastic rubber.
4. An energy storage and sensing integrated supercapacitor capable of resisting overload impacts according to claim 1, wherein the third metal current collector and the fourth metal current collector and the fifth metal current collector are bonded through adhesives to form point adhesive layers.
5. An energy storage and sensing integrated supercapacitor as claimed in claim 4, wherein a first layer of adhesive between the third and fourth metal current collectors and a second layer of adhesive between the fourth and fifth metal current collectors have gaps.
6. The energy storage and sensing integrated supercapacitor capable of resisting overload impact according to claim 5, wherein the notch on the first dispensing layer is aligned with the notch on the second dispensing layer.
7. An energy storage and sensing integrated supercapacitor as claimed in claim 1, wherein the third and fifth metal current collectors are both ring structures; the fourth metal current collector is of a sheet structure.
8. The integrated energy storage and sensing supercapacitor of claim 1, wherein the elastic body is of a ring structure.
9. The integrated energy storage and sensing supercapacitor of claim 1, wherein the shape of the supercapacitor comprises a circle, a square, a triangle or various profiles.
10. The energy storage and sensing integrated supercapacitor capable of resisting overload impact according to claim 1, wherein the elastic supporting body and the vacuum liquid absorption module control working voltage and capacitance of devices through increase and decrease of internal series connection quantity, and sensing range and sensitivity can be changed through changing of internal series connection quantity, so that the supercapacitor is suitable for more application scenarios.
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| CN201921038287.1U CN210223796U (en) | 2019-07-04 | 2019-07-04 | Energy storage and sensing integrated super capacitor capable of resisting overload impact |
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