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A preparation method for a membrane electrode used for a microbattery, the membrane electrode and the microbattery

A thin-film electrode and micro-battery technology, applied in the field of micro-battery, can solve problems such as inability to achieve micro-battery, and achieve the effects of reliable performance, good controllability and simple preparation process

Inactive Publication Date: 2013-11-13
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the area specific capacity of the existing thin-film electrodes for lithium-ion micro-batteries is 100nAh / cm 2 Below, it is impossible to meet the requirement that the working current of micro-battery is on the order of microampere

Method used

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  • A preparation method for a membrane electrode used for a microbattery, the membrane electrode and the microbattery
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preparation example Construction

[0033] The embodiment of the present invention discloses a method for preparing a thin-film electrode for a micro-battery, wherein the operation steps include:

[0034] a), configure an electrolytic solution composed of 90-99wt% non-aqueous polar alcohol and 1-10wt% fluoride;

[0035] b) Place the titanium sheet as an anode in the electrolytic solution obtained in the above step a), and perform electrolysis under the action of a periodic voltage, and obtain initial TiO with a micro-nanotube structure on the titanium sheet 2 film;

[0036] c), the initial TiO obtained in the above step b) 2 The film is heated at a temperature of 300-600°C for 1-48 hours;

[0037] d) Obtain TiO with micro-nanotube structure 2 thin film, the TiO 2 Thin films are used as thin-film electrodes for micro-batteries;

[0038] Wherein, the periodic voltage includes: performing a voltage action at a first voltage of 5-100V for 1-300min, and then performing a voltage action at a second voltage of -10...

Embodiment 1

[0053] a) Configure an electrolytic solution composed of 96wt% glycerin + 3wt% sodium fluoride + 1wt% water;

[0054] b) The titanium sheet is used as the anode and the platinum sheet is used as the cathode, respectively placed in the electrolytic solution obtained in the above step a), and the electrolysis is carried out under the action of the periodic voltage, wherein the periodic voltage is: 300min at the first voltage of 10V The voltage is applied, and the number of cycles is 1; then it is washed several times with distilled water, and the initial TiO with micro-nanotube structure is obtained on the titanium sheet. 2 film;

[0055] c), the initial TiO obtained in the above step b) 2 The film is heated at 300°C for 48 hours;

[0056] d) Obtain TiO with micro-nanotube structure 2 thin film, TiO 2 The thin film serves as a thin film electrode for a microbattery.

[0057] The above-mentioned present embodiment obtains TiO 2 The thin-film electrode is used as the thin-fi...

Embodiment 2

[0059] a) Configure an electrolytic solution composed of 96wt% ethanol + 3wt% sodium fluoride + 1wt% water;

[0060] b) The titanium sheet is used as the anode and the platinum sheet is used as the cathode, respectively placed in the electrolytic solution obtained in the above step a), and the electrolysis is carried out under the action of the periodic voltage, wherein the periodic voltage is: 2min at the first voltage of 30V The voltage is applied, and then the voltage is applied at the second voltage of 10V for 2min, and the number of cycles is 60 times; then it is washed several times with distilled water, and the initial TiO with micro-nanotube structure is obtained on the titanium sheet. 2 film;

[0061] c), the initial TiO obtained in the above step b) 2 The film is heated at a temperature of 600°C for 1 hour;

[0062] d) Obtain TiO with micro-nanotube structure 2 thin film, TiO 2 The thin film serves as a thin film electrode for a microbattery.

[0063] The above-...

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Abstract

The invention discloses a preparation method for a membrane electrode used for a microbattery, the membrane electrode and the microbattery. The method comprises operation steps of a) preparing an electrolytic solution comprising 90-99 wt% of a non-water polar alcohol and 1-10 wt% of a fluoride; b) placing a titanium sheet as an anode in the electrolytic solution prepared by the step a), and performing electrolysis under the action of periodic voltages to obtain an initial TiO2 membrane with a micro / nano tube structure on the titanium sheet; c) heating the initial TiO2 membrane, prepared by the step b), at 300-600 DEG C for 1-48 h; and d) obtaining a TiO2 membrane with a micro / nano tube structure and using the TiO2 membrane as the membrane electrode used for the microbattery. The membrane electrode has high area specific capacity, simple preparation technology and good controllability. The microbattery has a long recycling service lifetime and reliable performances, and can meet a requirement that the working current is in a microamp order of magnitude.

Description

technical field [0001] The invention belongs to the technical field of micro-batteries, and in particular relates to a preparation method of a thin-film electrode for a micro-battery, a thin-film electrode and a micro-battery. Background technique [0002] Microelectronics technology is developing toward miniaturization, and it has become a mainstream trend to integrate the micro-energy of microelectronic instruments (because batteries are generally used, so it can also be called microbattery) into microelectronic instruments. However, if the existing micro-energy is integrated into the components of the microelectronic instrument, the volume of the micro-energy will account for 40-80% of the entire microelectronic instrument, and the mass will account for 50-80% of the entire microelectronic instrument. The core reason why the miniaturization of micro-electronic instruments of micro-energy is limited comes from the technical development bottleneck of micro-energy. [0003]...

Claims

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Application Information

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IPC IPC(8): H01M4/1391H01M4/131H01M10/0525H01M10/056
CPCY02E60/122Y02E60/10
Inventor 鞠华孙丰霞徐艳辉
Owner SUZHOU UNIV
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