<p>Dry-coating electrode fabrication technologies have emerged as a promising solution for green and low-cost battery manufacturing, which can eliminate the use of contaminative and toxic solvents that challenge current battery industry. The key challenges of current dry-coating electrode fabrication lie in the uneven dispersion of various components and limited scalability. In this review, we introduce the fundamental mechanisms and recent advances in dry-coating electrode fabrication technologies, with a focus on key strategies for material design and process optimization that can promote structural integrity and electrochemical performance of the dry-coating electrodes. We also discuss the effectiveness of these innovative approaches towards promoted processing and scalability. In addition, several solutions regarding inorganic additives, composite binders, and low-melting-point additives are further introduced, which shows promise to address the component agglomeration and interface adhesion. Moreover, we prospect the deployment of dry-coating electrode fabrication technologies in solid-state batteries and conversion-type batteries, where the solvent-free nature and interfacial compatibility offer appealing benefits. The current challenges and future opportunities for dry-coating electrode fabrication technologies are summarized, aiming to provide valuable insights to this emerging field.</p>

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Dry-coating electrode fabrication for sustainable, high-performance batteries

  • Chengxiao Zhang,
  • Yan Wang,
  • Hao Sun

摘要

Dry-coating electrode fabrication technologies have emerged as a promising solution for green and low-cost battery manufacturing, which can eliminate the use of contaminative and toxic solvents that challenge current battery industry. The key challenges of current dry-coating electrode fabrication lie in the uneven dispersion of various components and limited scalability. In this review, we introduce the fundamental mechanisms and recent advances in dry-coating electrode fabrication technologies, with a focus on key strategies for material design and process optimization that can promote structural integrity and electrochemical performance of the dry-coating electrodes. We also discuss the effectiveness of these innovative approaches towards promoted processing and scalability. In addition, several solutions regarding inorganic additives, composite binders, and low-melting-point additives are further introduced, which shows promise to address the component agglomeration and interface adhesion. Moreover, we prospect the deployment of dry-coating electrode fabrication technologies in solid-state batteries and conversion-type batteries, where the solvent-free nature and interfacial compatibility offer appealing benefits. The current challenges and future opportunities for dry-coating electrode fabrication technologies are summarized, aiming to provide valuable insights to this emerging field.