Planar electrode and preparation method and application thereof

A planar electrode and planar technology, which is applied in the field of capacitors, can solve the problems of poor compatibility of electrode structures and achieve the effects of increasing charge and discharge rates, controllable thickness, and low cost

Active Publication Date: 2021-09-17
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the structural compatibility of electrodes prepared by the mask-assisted suction filtration method is not strong, and the preparation of electrodes with different structures often requires the preparation of corresponding masks.

Method used

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  • Planar electrode and preparation method and application thereof
  • Planar electrode and preparation method and application thereof
  • Planar electrode and preparation method and application thereof

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Experimental program
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Effect test

Embodiment

[0048] This embodiment provides a flexible thin film electrode and applies it to assembling micro supercapacitors. The preparation process is as follows figure 1 The specific operation steps are as follows:

[0049] 1) A polypropylene microfiltration membrane with a diameter of 50 mm and a pore size of 0.22 μm was clamped on a stainless steel sheet substrate washed with absolute ethanol and deionized water and dried. The stainless steel sheet with the polypropylene microporous filter membrane clamped was placed on the processing substrate of the laser, and CO was carried out under ambient conditions. 2 Laser local thermal fusion patterning is performed to form a pattern with 3 pairs of interdigitated structures by in-situ cooling and stacking.

[0050] Among them, CO 2 The preparation conditions and parameters of the laser partial hot melt patterning are as follows: a carbon dioxide laser with a wavelength of 10.6 μm is used, the focal length is 23 mm, and the spot diameter ...

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Abstract

The invention discloses a planar electrode and a preparation method and application thereof. The preparation method comprises the following steps: forming an electrode pattern on a microfiltration membrane by adopting a laser hot melting method; depositing a conductive material on the electrode pattern to form a patterned electrode material layer; and transferring the patterned electrode material layer to a substrate to obtain the planar electrode. The shape of the planar electrode junction is controllable, series-parallel connection of multiple sets of miniature super capacitors is easy to achieve, the requirement for supplying energy to miniature flexible multifunctional electronic equipment is met, the preparation process is rapid, and the preparation conditions are simple.

Description

technical field [0001] The present invention relates to the technical field of capacitors, in particular to a planar electrode and a preparation method and application thereof. Background technique [0002] The development of portable, miniaturized and highly integrated flexible electronic products has greatly promoted the development and application of miniature energy storage devices. As an emerging micro-energy storage unit, planar micro-supercapacitors have gradually become a research hotspot. Compared with micro-batteries, micro-supercapacitors show broader prospects in industrial applications due to their ultra-fast charge-discharge rate, ultra-high power density, ultra-long cycle life and lower manufacturing cost. [0003] In recent years, many scholars at home and abroad have made many contributions to the research and development of micro-supercapacitors. For example, Li et al. fabricated a high-performance flexible NiFe capable of driving graphene pressure sensor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/26H01G11/86
CPCH01G11/26H01G11/86Y02E60/13
Inventor 袁伟吴耀鹏王淳袁宇航
Owner SOUTH CHINA UNIV OF TECH
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