CN105280400A - Method for growing energy storage electrode material by constant current charging-discharging method - Google Patents

Method for growing energy storage electrode material by constant current charging-discharging method Download PDF

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Publication number
CN105280400A
CN105280400A CN201510674567.1A CN201510674567A CN105280400A CN 105280400 A CN105280400 A CN 105280400A CN 201510674567 A CN201510674567 A CN 201510674567A CN 105280400 A CN105280400 A CN 105280400A
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China
Prior art keywords
energy storage
electrode material
constant current
storage electrode
discharging
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CN201510674567.1A
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Chinese (zh)
Inventor
杨晓朋
乔振松
曹丙强
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University of Jinan
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University of Jinan
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Priority to CN201510674567.1A priority Critical patent/CN105280400A/en
Publication of CN105280400A publication Critical patent/CN105280400A/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13—Energy storage using capacitors

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  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention relates to a method for growing an energy storage electrode material by a constant current charging-discharging method. The method comprises the following steps of taking a conducting substrate as a working electrode, putting the conducting substrate, a counter electrode and a reference electrode into a material growing solution, and performing a continuous charging and discharging for 10-10,000 times under the voltage of minus 5 to 5 V and the current of 0.0001 to 10A based on a constant current charging-discharging technology, to obtain the energy storage electrode material with a self-repairing function. According to the method, the energy storage electrode material growth is finished by only the constant current charging and discharging process, so that the method is simple and easy to implement; and in addition, the obtained energy storage material has the self-repairing function in the application process, and the problem of the pulverization and dropping of the electrode material caused by repeated charging and discharging of the electrode material is effectively solved.

Description

A kind of method of galvanostatic charge/discharge growth energy storage electrode material
Technical field
The present invention relates to a kind of method growing energy storage electrode material, particularly relate to the method for a kind of galvanostatic charge/discharge growth energy storage electrode material.
Background technology
Fossil energy crisis in global range and climate change have greatly promoted the research of countries in the world to new energy technology.The development that lithium ion battery and ultracapacitor are the novel environment friendly energy based on electrochemical energy storage as the fast development of chargeable energy storage device provides new direction.Lithium ion battery is the feature such as energy density is large, average output voltage is high, self discharge is little, environmental protection because having, and is used widely in fields such as communications and transportation, mobile communication, space flight and aviation.The energy storage mechanism of lithium ion battery is the charge and discharge process of Lithium-ion embeding between electrode material and electrolyte/deviate from.Ultracapacitor is a kind of novel energy storage device between traditional capacitor and battery, because it has high power density, fast charging and discharging, the feature features such as ultralow temperature characteristic is good, show wide application prospect in every field such as transport service, wind energy, energy storage and industrial UPS.According to the energy storage mechanism of electrode material, ultracapacitor is divided into double electric layer capacitor and fake capacitance ultracapacitor.Double electric layer capacitor is the separation of charge energy storage electric charge utilizing electrode material and electrolyte interface to be formed, and fake capacitance ultracapacitor adsorption desorption or electrochemical redox reaction occurs to store electric charge in electrode material surface or nearly surface.Therefore, no matter be lithium ion battery, or ultracapacitor, the research of electrode material has a great impact charge storage tool.
At present, in the research for electrochemical energy storage device electrode material, electrode material coming off or dissolve and cause the attenuation losses of capacitance because of electrode material in cyclic process, thus had a strong impact on electrochemical stability and the cycle life of energy storage device.Such as: vanadium oxide exists and layer structure and have higher energy storage capacity because of the oxide of multiple different valence state as the electrode material of ultracapacitor, but vanadium oxide carries out the embedding of repetition/deviate from electrochemistry circulation time in the electrolytic solution and easily causes vanadium oxide to dissolve and structural degradation, thus have impact on the application limiting vanadium oxide electrode material.Therefore, prepare a kind of energy storage electrode material with self-repair function and seem particularly important.
The invention provides a kind of constant current charge-discharge technology growth electrode material, the electrode material that the method obtains in use can realize selfreparing, effectively can solve the powder of detached problem of electrode material, thus improve cycle life and the electrochemical stability of energy storage device.
Summary of the invention
The object of this invention is to provide a kind of new method growing energy storage electrode material, the electrode material utilizing the method to obtain in use can realize selfreparing, effectively can solve the powder of detached problem of electrode material, thus improves the cycle life of energy storage device.
The preparation of energy storage electrode material of the present invention adopts constant current charge-discharge technology.Preparation method is as follows:
Using conductive substrates as work electrode, and with together with electrode, reference electrode, put into Material growth solution, utilize constant current charge-discharge technology under be-5 ~ 5V and electric current being the condition of 0.0001 ~ 10A at voltage, continuous discharge and recharge can obtain the energy storage electrode material with self-repair function for 10 ~ 10000 times.
Beneficial effect of the present invention:
1) product that prepared by the method is a kind of energy storage electrode material, can teaching display stand reparation in the use procedure in later stage.
2) the present invention's technique in the process of preparation is simple, only needs the electrochemical apparatus with constant current charge-discharge function.
3) electrode material prepared by has larger specific area.
Embodiment
By embodiment, the present invention is further illustrated.
Embodiment 1:
Using FTO conductive substrates as work electrode, and be 0.5MNa with putting into concentration together with electrode, reference electrode 2sO 4be the MnSO of 0.0005M with concentration 4in mixed solution, utilize constant current charge-discharge technology under be 1V and electric current being the condition of 0.0005A at voltage, continuous discharge and recharge can obtain the MnO with self-repair function for 1000 times 2energy storage electrode material.
Embodiment 2:
Using FTO conductive substrates as work electrode, and be 0.5MNa with putting into concentration together with electrode, reference electrode 2sO 4be the MnSO of 0.0005M with concentration 4in mixed solution, utilize constant current charge-discharge technology under be 1V and electric current being the condition of 0.002A at voltage, continuous discharge and recharge can obtain the energy storage electrode material with self-repair function for 150 times.
Embodiment 3:
Using FTO conductive substrates as work electrode, and be 0.5MNa with putting into concentration together with electrode, reference electrode 2sO 4with the Mn (CH that concentration is 0.001M 3cOO) 2in mixed solution, utilize constant current charge-discharge technology under be 1V and electric current being the condition of 0.0005A at voltage, continuous discharge and recharge can obtain the energy storage electrode material with self-repair function for 500 times.

Claims (2)

1. the method for a galvanostatic charge/discharge growth energy storage electrode material, it is characterized in that, step comprises: using conductive substrates as work electrode, and with together with electrode, reference electrode, put into Material growth solution, utilize constant current charge-discharge technology under be-5 ~ 5V and electric current being the condition of 0.0001 ~ 10A at voltage, continuous discharge and recharge can obtain the energy storage electrode material with self-repair function for 10 ~ 10000 times.
2. by the method utilizing galvanostatic charge/discharge to grow energy storage electrode material according to claim 1, it is characterized in that: utilize the electrochemical apparatus with constant current charge-discharge function, the energy storage electrode material with self-repair function is prepared in continuous discharge and recharge for 10 ~ 10000 times.
CN201510674567.1A 2015-10-19 2015-10-19 Method for growing energy storage electrode material by constant current charging-discharging method Pending CN105280400A (en)

Priority Applications (1)

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CN201510674567.1A CN105280400A (en) 2015-10-19 2015-10-19 Method for growing energy storage electrode material by constant current charging-discharging method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510674567.1A CN105280400A (en) 2015-10-19 2015-10-19 Method for growing energy storage electrode material by constant current charging-discharging method

Publications (1)

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CN105280400A true CN105280400A (en) 2016-01-27

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103400703A (en) * 2013-07-12 2013-11-20 天津大学 Self-supporting CNT (Carbon Nano-Tube) film-faradaic pseudocapacitance composite material
CN103440999A (en) * 2013-08-29 2013-12-11 南昌航空大学 Method for preparing nano MnO2 composite electrode for high-conductivity super-capacitor
CN104332324A (en) * 2014-10-31 2015-02-04 深圳大学 Preparation method of porous metal nickel and nickel-based porous film super-capacitor electrode material on surface of porous metal nickel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103400703A (en) * 2013-07-12 2013-11-20 天津大学 Self-supporting CNT (Carbon Nano-Tube) film-faradaic pseudocapacitance composite material
CN103440999A (en) * 2013-08-29 2013-12-11 南昌航空大学 Method for preparing nano MnO2 composite electrode for high-conductivity super-capacitor
CN104332324A (en) * 2014-10-31 2015-02-04 深圳大学 Preparation method of porous metal nickel and nickel-based porous film super-capacitor electrode material on surface of porous metal nickel

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
P.J. WALKER: "Electrodeposited MnO2 For Pseudocapacitive Deionization: Relating Deposition Condition and Electrode Structure to Performance", 《ELECTROCHIMICA ACTA》 *
SHULEI CHOU等: "Electrodeposition synthesis and electrochemical properties of nanostructured γ-MnO2 films", 《JOURNAL OF POWER SOURCES》 *

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Application publication date: 20160127