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Acupuncture-Inspired Active-Material Microenvironment Engineering for High-Throughput Thick Electrodes by Instant

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Researchers developed microneedle-array templated extrusion (MATE) technology and active-material microenvironment (AMME) therapy to create advanced battery electrodes. This innovation significantly boosts energy density and performance in electrochemical energy storage devices.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • High-energy and power density batteries require efficient thick electrodes.
  • Fabricating these electrodes is hindered by challenges in controlling the active-material microenvironment (AMME).
  • Existing methods lack theoretical understanding and cost-effective technologies for AMME regulation.

Purpose of the Study:

  • To introduce a novel microneedle-array templated extrusion (MATE) technology for fabricating high-throughput thick electrodes.
  • To propose an active-material microenvironment (AMME) therapy theory for optimizing ion and electron transport.
  • To address the limitations in designing and manufacturing advanced battery electrodes.

Main Methods:

  • Development of a clay-alike thixotropic (CAT) slurry with 3D-morphing capabilities.
  • Application of MATE technology for rapid fabrication of 3D thick electrodes with ordered ion-transport channels.
  • Establishment of an AMME therapy theory using an artificial potential field algorithm for ion-transport path optimization.

Main Results:

  • Successful fabrication of high-throughput 3D thick electrodes with customizable ion-transport channels.
  • Achieved a 300% improvement in specific capacity at an ultrahigh active-material loading of 60 mg cm⁻².
  • Demonstrated enhanced ion-transport dynamics through the developed AMME therapy theory.

Conclusions:

  • The MATE technology offers an industry-friendly approach for advanced electrode fabrication.
  • The AMME-therapy theory provides fundamental insights into ion transport mechanisms.
  • These advancements hold potential for improving batteries and other electrochemical energy-storage devices.