CN110736420A - Preparation method of portable self-powered hydrogel strain sensor - Google Patents
Preparation method of portable self-powered hydrogel strain sensor Download PDFInfo
- Publication number
- CN110736420A CN110736420A CN201910886703.1A CN201910886703A CN110736420A CN 110736420 A CN110736420 A CN 110736420A CN 201910886703 A CN201910886703 A CN 201910886703A CN 110736420 A CN110736420 A CN 110736420A
- Authority
- CN
- China
- Prior art keywords
- hydrogel
- strain sensor
- self
- positive
- powered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2389/00—Characterised by the use of proteins; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1545—Six-membered rings
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Primary Cells (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A portable self-powered hydrogel strain sensor is prepared by selecting flexible hydrogel with excellent tensile property as electrolyte, assembling zinc sheet as negative electrode at both ends, using copper sheet as positive electrode to construct flexible hydrogel batteries, connecting constant value resistors between positive and negative electrodes of the batteries as signal output ends to construct a strain sensor, converting chemical energy between positive and negative electrodes of the batteries into electric energy, detecting voltage signals at both ends of the constant value resistors, namely detection signals of the sensor, when hydrogel material as main matrix is deformed by external force, the change can cause the change of internal resistance value, thereby changing the voltage of the output end.
Description
Technical Field
The invention relates to a preparation method of a strain sensor, belongs to the field of sensors, and particularly relates to a design and preparation method of self-powered strain sensors which are portable and do not need an external power supply and are based on the principle of a primary battery.
Background
The hydrogel-based strain sensor can convert hydrogel shape change caused by tiny mechanical stimulation (such as pressure and tension) into a measurable electrical signal, and meanwhile, due to the characteristics of good stretchability, flexibility, biocompatibility, self-repairability and the like, the hydrogel-based strain sensor has a good potential application prospect in the preparation of electronic equipment in the fields related to human health, such as a pulse detector, a soft robot, a super capacitor, artificial skin and the like, so far, the reported hydrogel-based strain sensor can be mainly divided into two types according to the difference of detection signals, wherein is used for detecting resistance value change caused by shape change of hydrogel due to external force stimulation and is also called as a resistance sensor, and is used for detecting capacitance change caused by shape change of hydrogel in the presence of external force and is also called as a capacitance sensor.
Disclosure of Invention
The invention aims to provide preparation methods of portable self-powered hydrogel strain sensors based on the principle of a primary battery, aiming at the defects that most of the reported hydrogel sensors need an external power supply for driving and are not beneficial to equipment portability.
The technical scheme includes that hydrogel with fixed mechanical property is used as electrolyte, active metal is selected as negative electrode material, a hydrogel battery is constructed according to the principle of a primary battery, then fixed value resistors are added to form a circuit loop to realize preparation of self-powered hydrogel strain sensors, signal output ends of the sensors are two ends of the fixed value resistors, output signals are voltage, and the expression is voltage
Wherein E is the electromotive force of the primary cell, R is the resistance of the hydrogelfThe hydrogel is a constant value resistor, when the hydrogel deforms under the action of external force, the resistance R of the hydrogel can be changed, so that the output voltage V is changed, and the purpose of monitoring external stress stimulation can be achieved through voltage detection.
The method comprises the following specific steps:
(1) preparation of hydrogels
Dissolving gelatin and tannic acid in deionized water at 80 ℃ in a mass ratio of 0.7:1, stirring for two hours, cooling the obtained precipitate, and molding for use;
(2) construction of galvanic cells
Attaching a zinc sheet as a cathode material of the primary battery and a copper sheet as an anode material of the primary battery to two sides of hydrogel, and forming the primary battery by taking the hydrogel as an electrolyte;
(3) preparing a self-energized hydrogel strain sensor;
the constant value resistor with constant value is selected to be connected to the two ends of the positive and negative electrodes of the primary battery to form circuit loops, and the construction of the self-powered hydrogel strain sensor is completed.
, the mass ratio of gelatin to tannin in step (1) can be adjusted within the range of 0.1: 1 to 1: 1.
, the gelatin-tannin composite hydrogel in step (1) can be replaced by other hydrogels which can be used as battery electrolyte and have mechanical properties.
, the zinc sheet in step (2) can be replaced by other active metal materials for the cathode of the primary battery.
, the positive electrode material in step (2) can be replaced by other materials that can react with the selected negative electrode material to form a galvanic cell, or can be an air electrode.
, the metal electrode in step (2) may be a metal sheet, or a metal electrode film layer may be plated on both ends of the hydrogel by vacuum evaporation, and the assembly method of the electrode on the hydrogel is not limited.
Further , the constant resistance in step (3) can be any value that maximizes the sensitivity of the self-powered strain sensor in the initial state when the resistance is as large as the initial resistance of the hydrogel.
The method is characterized in that is that hydrogel is selected as electrolyte of a galvanic cell, the three-dimensional network structure and the high water content of the hydrogel are beneficial to ion transmission, the hydrogel has conductivity determined by and can be used as electrolyte material, in addition, the resistance of the hydrogel can change along with the strain of the hydrogel, and the method is characterized in that a self-powered hydrogel strain sensor is constructed based on the principle of the galvanic cell, chemical energy of the reaction of the galvanic cell is converted into electric energy without the support of an additional external power supply, when the hydrogel is stimulated to be strained by external force, the change of the resistance of the hydrogel causes the output voltage signal of the sensor to change, and the purpose of detection is achieved.
Compared with the reported hydrogel strain sensor method, the strain sensor prepared by the invention is easy to miniaturize design due to self-energy supply and no external power supply, the portability of the sensor is improved, and the preparation method is very simple and easy to implement.
Drawings
FIG. 1 is a schematic diagram of a portable self-energized hydrogel strain sensor.
Detailed Description
Example 1
(1) Preparation of hydrogels
Dissolving gelatin and tannic acid in deionized water at 80 ℃ in a mass ratio of 0.7:1, stirring for two hours, and cooling and molding the obtained precipitate to obtain target hydrogel;
(2) construction of galvanic cells
Attaching a zinc sheet as a cathode material of the primary battery and a copper sheet as an anode material of the primary battery to two ends of two sides of the hydrogel to form the primary battery;
(3) preparing a self-powered strain sensor;
and connecting a 100 omega constant value resistor to the anode and the cathode of the primary battery, wherein two ends of the constant value resistor are signal output points, and the output signals are voltage signals, so that the preparation of the self-powered strain sensor can be realized.
Example 2
(1) Preparation of hydrogels
Dissolving gelatin and tannic acid in deionized water at 80 ℃ in a mass ratio of 0.9:1, stirring for two hours, and cooling and molding the obtained precipitate to obtain target hydrogel;
(2) construction of galvanic cells
Attaching a zinc sheet as a cathode material of the primary battery and a copper sheet as an anode material of the primary battery to two ends of two sides of the hydrogel to form the primary battery;
(3) preparing a self-powered strain sensor;
and connecting the 1k omega constant value resistor to the anode and the cathode of the primary battery, wherein two ends of the constant value resistor are signal output points, and the output signals are voltage signals, so that the preparation of the self-powered strain sensor can be realized.
Example 3
(1) Preparation of hydrogels
Dissolving gelatin and tannic acid in deionized water at 80 ℃ in a mass ratio of 0.7:1, stirring for two hours, and cooling and molding the obtained precipitate to obtain target hydrogel;
(2) construction of galvanic cells
Attaching a zinc sheet as a cathode material of the primary battery and an air electrode as an anode material of the primary battery to two ends of two sides of the hydrogel to form the primary battery;
(3) preparing a self-powered strain sensor;
and connecting a 100 omega constant value resistor to the anode and the cathode of the primary battery, wherein two ends of the constant value resistor are signal output points, and the output signals are voltage signals, so that the preparation of the self-powered strain sensor can be realized.
Example 4
(1) Preparation of hydrogels
Dissolving gelatin and tannic acid in deionized water at 80 ℃ in a mass ratio of 0.7:1, stirring for two hours, and cooling and molding the obtained precipitate to obtain target hydrogel;
(2) construction of galvanic cells
Plating layers of zinc films on the end of the hydrogel in a vacuum evaporation mode to serve as a negative electrode material of the primary cell, and attaching a copper sheet serving as a positive electrode material of the primary cell to the other end of the hydrogel to form the primary cell;
(3) preparing a self-powered strain sensor;
and connecting the 1k omega constant value resistor to the anode and the cathode of the primary battery, wherein two ends of the constant value resistor are signal output points, and the output signals are voltage signals, so that the preparation of the self-powered strain sensor can be realized.
Example 5
(1) Preparation of hydrogels
Dissolving gelatin and tannic acid in deionized water at 80 ℃ in a mass ratio of 0.5:1, stirring for two hours, and cooling and molding the obtained precipitate to obtain target hydrogel;
(2) construction of galvanic cells
Plating layers of zinc films on the end of the hydrogel in a vacuum evaporation mode to serve as a negative electrode material of the galvanic cell, and attaching an air electrode serving as a positive electrode material of the galvanic cell to the other end of the hydrogel to form the galvanic cell;
(3) preparing a self-powered strain sensor;
and connecting a 100 omega constant value resistor to the anode and the cathode of the primary battery, wherein two ends of the constant value resistor are signal output points, and the output signals are voltage signals, so that the preparation of the self-powered strain sensor can be realized.
Claims (5)
1, A method for preparing a portable self-powered hydrogel strain sensor, which is characterized by comprising the following steps:
(1) preparation of hydrogel:
dissolving gelatin and tannic acid in deionized water at 80 ℃ in a mass ratio of 0.7:1, stirring for 1.5-2.5h, cooling the obtained precipitate, and shaping to obtain hydrogel with excellent tensile property;
(2) construction of the galvanic cell:
attaching a zinc sheet as a cathode material of the primary battery and a copper sheet as an anode material of the primary battery to two ends of two sides of the hydrogel to form the primary battery;
(3) preparing a self-energized hydrogel strain sensor;
constant value resistors are connected to the positive and negative electrodes of the primary battery to form loops, and the self-powered hydrogel strain sensor can be obtained, wherein two ends of each constant value resistor are signal output ends, and output voltage signals are detected signals.
2. The method for preparing portable self-energized hydrogel strain sensors as claimed in claim 1, wherein the mass ratio of hydrogel gelatin to tannic acid in step (1) is adjustable within the range of 0.1: 1 to 1:1, and can be replaced by other hydrogels which can be used as galvanic cell electrolytes and have mechanical properties.
3. The method for preparing portable self-powered hydrogel strain sensors as claimed in claim 1, wherein the electrode combination zinc (negative) -copper (positive) in step (2) can be replaced by other metal or nonmetal materials for the positive and negative electrodes of a galvanic cell, including zinc (negative) -manganese dioxide (positive), zinc (negative) -silver oxide (positive), zinc-air electrode, and aluminum-air electrode.
4. The method for preparing portable self-energized hydrogel strain sensors as claimed in claim 1, wherein the metal electrodes in step (2) are made of metal sheet, and metal electrode films are plated on both ends of the hydrogel by vacuum evaporation, and the assembly of the electrodes on the hydrogel is not limited.
5. The method for preparing portable self-energized hydrogel strain sensors as claimed in claim 1, wherein the fixed resistor in step (3) can be any value, and the sensitivity of the self-energized strain sensor in the initial state is maximized when the resistance is as large as the initial resistance of the hydrogel, i.e., the resistance without external force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910886703.1A CN110736420B (en) | 2019-09-19 | 2019-09-19 | Preparation method of portable self-powered hydrogel strain sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910886703.1A CN110736420B (en) | 2019-09-19 | 2019-09-19 | Preparation method of portable self-powered hydrogel strain sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110736420A true CN110736420A (en) | 2020-01-31 |
| CN110736420B CN110736420B (en) | 2020-09-11 |
Family
ID=69268161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910886703.1A Active CN110736420B (en) | 2019-09-19 | 2019-09-19 | Preparation method of portable self-powered hydrogel strain sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110736420B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113471460A (en) * | 2021-07-15 | 2021-10-01 | 广州大学 | Preparation and application of green and environment-friendly starch-based pressure-sensitive battery |
| CN114759258A (en) * | 2022-03-16 | 2022-07-15 | 广州大学 | Preparation and application of starch-based self-powered flexible sensor |
Citations (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1234751A (en) * | 1996-08-26 | 1999-11-10 | 尤尼利弗公司 | Aqueous solution composition comprising polymer hydrogel compositions |
| US6117296A (en) * | 1998-07-21 | 2000-09-12 | Thomson; Timothy | Electrically controlled contractile polymer composite |
| CN1917352A (en) * | 2006-09-01 | 2007-02-21 | 重庆大学 | Self-powered structure in use for sensor |
| CN102339163A (en) * | 2010-07-20 | 2012-02-01 | 索尼公司 | Contact-pressure detecting apparatus and input apparatus |
| CN103663414A (en) * | 2012-09-03 | 2014-03-26 | 国家纳米科学中心 | Preparation method of graphene sponge |
| CN105066863A (en) * | 2015-08-04 | 2015-11-18 | 上海交通大学 | Displacement sensor based on electroactive elastomer polymer |
| CN105103401A (en) * | 2013-04-02 | 2015-11-25 | 欧姆龙株式会社 | Sensor device and monitoring system |
| CN105330885A (en) * | 2015-12-01 | 2016-02-17 | 华中科技大学 | Piezoelectric gel and preparation method and application thereof |
| CN106441380A (en) * | 2016-09-20 | 2017-02-22 | 中国科学院深圳先进技术研究院 | Preparation method of three-dimensional graphene strain sensor |
| CN106546162A (en) * | 2016-10-09 | 2017-03-29 | 深圳瑞湖科技有限公司 | A kind of flexible sensor of detection strain |
| US20170123374A1 (en) * | 2014-06-30 | 2017-05-04 | Dublin Institute Of Technology | Holographic Recording Composition |
| CN106893120A (en) * | 2017-03-06 | 2017-06-27 | 乌鲁木齐诺西辰环境工程有限公司 | A kind of preparation method of strain-responsive conductive hydrogel |
| CN109054402A (en) * | 2018-07-20 | 2018-12-21 | 湖南工业大学 | A kind of preparation method and applications of flexibility gelatin/nano conducting powders composite material |
| CN109180962A (en) * | 2018-07-27 | 2019-01-11 | 常州大学 | A kind of preparation method of PAA class pectin self-healing hydrogel and its capacitance type sensor |
| CN109215319A (en) * | 2018-09-29 | 2019-01-15 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of low-consumption wireless poppet pressure sensor based on pressure jump triggering |
| CN109251449A (en) * | 2018-07-05 | 2019-01-22 | 太原理工大学 | A kind of composite hydrogel and its preparation method and application |
| CN109259891A (en) * | 2018-08-29 | 2019-01-25 | 华中科技大学 | A kind of electronic skin and preparation method thereof measuring pressure |
| CN109294133A (en) * | 2018-09-25 | 2019-02-01 | 南京工业大学 | Stretchable self-healing hydrogel flexible strain sensor and preparation method thereof |
| CN109489539A (en) * | 2018-08-29 | 2019-03-19 | 北京邮电大学 | The preparation method of flexible strain transducer and flexible strain transducer |
| CN109503765A (en) * | 2018-11-19 | 2019-03-22 | 华南理工大学 | The preparation method of cellulose ion conductive hydrogel and the hydrogel being prepared |
| CN109612610A (en) * | 2018-11-06 | 2019-04-12 | 重庆大学 | A kind of color variable electronic skin and preparation method thereof based on hydrogel |
| CN109724725A (en) * | 2018-12-29 | 2019-05-07 | 西南科技大学 | A kind of flexibility strain transducer and its manufacturing method |
| CN109901340A (en) * | 2019-02-28 | 2019-06-18 | 中国科学技术大学 | A kind of self energizing electrochomeric films and its preparation method and application |
| CN109974907A (en) * | 2019-03-15 | 2019-07-05 | 钛深科技(深圳)有限公司 | Integrated pliable pressure sensor of actively powering |
| CN110054856A (en) * | 2019-04-22 | 2019-07-26 | 常州大学 | The preparation method and applications of low temperature resistant self-healing hydrogel |
| CN110105590A (en) * | 2019-04-30 | 2019-08-09 | 南京林业大学 | Based on carboxymethyl cellulose/lithium chloride-polyacrylamide hydrogel flexible strain transducer preparation method and applications |
| CN110128596A (en) * | 2019-07-12 | 2019-08-16 | 苏州宏久航空防热材料科技有限公司 | A kind of stretchable self-healing ionic conduction Nanometer composite hydrogel of high transparency and preparation method thereof |
| CN110146198A (en) * | 2019-05-22 | 2019-08-20 | 厦门大学 | A kind of flexibility self energizing pressure sensor |
| CN110183688A (en) * | 2019-04-30 | 2019-08-30 | 南京林业大学 | Preparation method based on the flexible strain transducer of nano-cellulose-carbon nanotube/polypropylene amide conductive hydrogel |
-
2019
- 2019-09-19 CN CN201910886703.1A patent/CN110736420B/en active Active
Patent Citations (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1234751A (en) * | 1996-08-26 | 1999-11-10 | 尤尼利弗公司 | Aqueous solution composition comprising polymer hydrogel compositions |
| US6117296A (en) * | 1998-07-21 | 2000-09-12 | Thomson; Timothy | Electrically controlled contractile polymer composite |
| CN1917352A (en) * | 2006-09-01 | 2007-02-21 | 重庆大学 | Self-powered structure in use for sensor |
| CN102339163A (en) * | 2010-07-20 | 2012-02-01 | 索尼公司 | Contact-pressure detecting apparatus and input apparatus |
| CN103663414A (en) * | 2012-09-03 | 2014-03-26 | 国家纳米科学中心 | Preparation method of graphene sponge |
| CN105103401A (en) * | 2013-04-02 | 2015-11-25 | 欧姆龙株式会社 | Sensor device and monitoring system |
| US20170123374A1 (en) * | 2014-06-30 | 2017-05-04 | Dublin Institute Of Technology | Holographic Recording Composition |
| CN105066863A (en) * | 2015-08-04 | 2015-11-18 | 上海交通大学 | Displacement sensor based on electroactive elastomer polymer |
| CN105330885A (en) * | 2015-12-01 | 2016-02-17 | 华中科技大学 | Piezoelectric gel and preparation method and application thereof |
| CN106441380A (en) * | 2016-09-20 | 2017-02-22 | 中国科学院深圳先进技术研究院 | Preparation method of three-dimensional graphene strain sensor |
| CN106546162A (en) * | 2016-10-09 | 2017-03-29 | 深圳瑞湖科技有限公司 | A kind of flexible sensor of detection strain |
| CN106893120A (en) * | 2017-03-06 | 2017-06-27 | 乌鲁木齐诺西辰环境工程有限公司 | A kind of preparation method of strain-responsive conductive hydrogel |
| CN109251449A (en) * | 2018-07-05 | 2019-01-22 | 太原理工大学 | A kind of composite hydrogel and its preparation method and application |
| CN109054402A (en) * | 2018-07-20 | 2018-12-21 | 湖南工业大学 | A kind of preparation method and applications of flexibility gelatin/nano conducting powders composite material |
| CN109180962A (en) * | 2018-07-27 | 2019-01-11 | 常州大学 | A kind of preparation method of PAA class pectin self-healing hydrogel and its capacitance type sensor |
| CN109489539A (en) * | 2018-08-29 | 2019-03-19 | 北京邮电大学 | The preparation method of flexible strain transducer and flexible strain transducer |
| CN109259891A (en) * | 2018-08-29 | 2019-01-25 | 华中科技大学 | A kind of electronic skin and preparation method thereof measuring pressure |
| CN109294133A (en) * | 2018-09-25 | 2019-02-01 | 南京工业大学 | Stretchable self-healing hydrogel flexible strain sensor and preparation method thereof |
| CN109215319A (en) * | 2018-09-29 | 2019-01-15 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of low-consumption wireless poppet pressure sensor based on pressure jump triggering |
| CN109612610A (en) * | 2018-11-06 | 2019-04-12 | 重庆大学 | A kind of color variable electronic skin and preparation method thereof based on hydrogel |
| CN109503765A (en) * | 2018-11-19 | 2019-03-22 | 华南理工大学 | The preparation method of cellulose ion conductive hydrogel and the hydrogel being prepared |
| CN109724725A (en) * | 2018-12-29 | 2019-05-07 | 西南科技大学 | A kind of flexibility strain transducer and its manufacturing method |
| CN109901340A (en) * | 2019-02-28 | 2019-06-18 | 中国科学技术大学 | A kind of self energizing electrochomeric films and its preparation method and application |
| CN109974907A (en) * | 2019-03-15 | 2019-07-05 | 钛深科技(深圳)有限公司 | Integrated pliable pressure sensor of actively powering |
| CN110054856A (en) * | 2019-04-22 | 2019-07-26 | 常州大学 | The preparation method and applications of low temperature resistant self-healing hydrogel |
| CN110105590A (en) * | 2019-04-30 | 2019-08-09 | 南京林业大学 | Based on carboxymethyl cellulose/lithium chloride-polyacrylamide hydrogel flexible strain transducer preparation method and applications |
| CN110183688A (en) * | 2019-04-30 | 2019-08-30 | 南京林业大学 | Preparation method based on the flexible strain transducer of nano-cellulose-carbon nanotube/polypropylene amide conductive hydrogel |
| CN110146198A (en) * | 2019-05-22 | 2019-08-20 | 厦门大学 | A kind of flexibility self energizing pressure sensor |
| CN110128596A (en) * | 2019-07-12 | 2019-08-16 | 苏州宏久航空防热材料科技有限公司 | A kind of stretchable self-healing ionic conduction Nanometer composite hydrogel of high transparency and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 无: "兼顾灵敏与强度的导电水凝胶传感器", 《传感器世界》 * |
| 熊耀旭 等: "微纳结构柔性压力传感器的制备及应用", 《化学进展》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113471460A (en) * | 2021-07-15 | 2021-10-01 | 广州大学 | Preparation and application of green and environment-friendly starch-based pressure-sensitive battery |
| CN114759258A (en) * | 2022-03-16 | 2022-07-15 | 广州大学 | Preparation and application of starch-based self-powered flexible sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110736420B (en) | 2020-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Berchmans et al. | An epidermal alkaline rechargeable Ag–Zn printable tattoo battery for wearable electronics | |
| Han et al. | A flexible, high-voltage and safe zwitterionic natural polymer hydrogel electrolyte for high-energy-density zinc-ion hybrid supercapacitor | |
| CN109974907B (en) | Integrated active power supply flexible pressure sensor | |
| CN103107380B (en) | Battery and manufacturing method thereof | |
| Ma et al. | Flexible energy storage devices for wearable bioelectronics | |
| CN110736420A (en) | Preparation method of portable self-powered hydrogel strain sensor | |
| US7517615B2 (en) | Gel electrolyte, process for producing the same, and use thereof | |
| CN111697280B (en) | Battery device capable of monitoring electrode stress change in real time, battery adopting device and application of device | |
| CN113258156B (en) | Three-electrode cell structure, preparation method thereof and method for testing negative electrode potential | |
| CN113097578B (en) | Composite gel electrolyte membrane and preparation method and application thereof | |
| CN112505114A (en) | Preparation of all-polymer self-supporting electrode and application of all-polymer self-supporting electrode in flexible electrochemical sensor | |
| CN112886100A (en) | Preparation method of high-toughness gel electrolyte and all-solid-state zinc-air battery with firm interface | |
| Wang et al. | Powering electronics by scavenging energy from external metals | |
| Pu et al. | Grafted MXene Assisted Bifunctional Hydrogel for Stable and Highly Sensitive Self‐Powered Fibrous System | |
| WO2024114381A1 (en) | Intrinsic stretchable polymer electrolyte, preparation method therefor, and use thereof | |
| CN110246701B (en) | Super capacitor with impact sensor function and application | |
| CN114414106B (en) | Active power supply flexible pressure sensor | |
| WO2023108318A1 (en) | Self-powered flexible pressure sensor | |
| CN103390744B (en) | A kind of preparation method of micro cell membrane electrode and membrane electrode and micro cell | |
| CN202917587U (en) | Hybrid nano-generator | |
| CN113823511B (en) | Miniature capacitor and preparation method thereof | |
| Nohara et al. | Electric double layer capacitor using polymer hydrogel electrolyte with 4 M H2SO4 aqueous solution | |
| CN113793757B (en) | Flexible planar capacitor and preparation method and application thereof | |
| CN114598257A (en) | Flexible electronic device and wing skin structure of aircraft | |
| AU2021104304A4 (en) | An electronic-ionic polymer sensor for voltage generation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |