Review Paper on Adhesives for Solid-State Batteries Published, Accelerating Next-Gen Battery Development

July 5, 2026

Journal of Electrochemical Energy Conversion and Storage Global

Overview

A review paper has been published summarizing recent research progress on adhesive technologies crucial for high-performance solid-state batteries. This paper meticulously analyzes the challenges of interfacial adhesion between solid electrolytes and electrodes, discussing adhesive design principles and new materials to achieve high energy density and long cycle life. It provides critical guidelines to accelerate the practical implementation of next-generation solid-state batteries.

In Depth

Key Findings

As a critical step towards the commercialization of solid-state batteries, a comprehensive review paper has been published, summarizing recent research progress in adhesive technologies indispensable for their high performance. This paper deeply explores the inherent challenges faced by interfacial adhesion between solid electrolytes and electrodes. It meticulously discusses adhesive design principles, material selection, and the latest research trends aimed at realizing solid-state batteries that combine high energy density, high power output, and long cycle life. This provides a crucial knowledge base and direction for accelerating the development of next-generation solid-state batteries.

Technical Details

Interfacial Adhesion Challenges: At the solid electrolyte-electrode interface, robust adhesion is required to form efficient ion conduction paths while preventing delamination and cracking due to volume changes during cycling. The paper introduces various approaches regarding interfacial wettability, mechanical strength, and chemical stability.
New Materials and Designs Proposed: The review covers advancements in silicone-based, epoxy-based, and acrylic-based adhesives, as well as new compositions and structural designs such as hybridization with polymer electrolytes. Particular attention is given to the development trends of polymer-based adhesives that balance flexibility and ion conductivity, and those incorporating self-healing functionalities.
Importance of Adhesion Technology: Solid-state battery performance is largely determined not only by bulk materials but also by the characteristics of each interface. Adhesives are essential for ensuring the physical and electrical stability of these interfaces, with particular emphasis on their role in reducing interfacial resistance between electrodes and solid electrolytes and enabling stable ion transport.
Evaluation Methods: The paper also describes the latest measurement techniques and simulation methods used for evaluating adhesive strength, interfacial resistance, cycle life, and safety, serving as guidelines for future research and development.

Background & Context

Solid-state batteries hold immense promise as next-generation batteries for extending the range and shortening charging times of electric vehicles (EVs), while also offering enhanced safety. However, their complex internal structure and the high interfacial resistance between solid electrolytes and electrodes, compared to lithium-ion batteries, have been major hurdles to practical implementation. Specifically, interfacial delamination due to electrode volume changes during charge-discharge cycles has been a significant cause of capacity fade and reduced lifespan, making the development of high-performance adhesives to solve this problem an urgent necessity.

Strategic Significance & Outlook

This review paper is expected to identify knowledge gaps in the research and development of solid-state battery adhesives and point to future research directions, thereby accelerating technological innovation across the industry. Once high-performance adhesive technology is established, solid-state batteries will move closer to practical application, realizing their potential in a wide range of applications including the EV market, stationary energy storage systems, and wearable devices. Going forward, interdisciplinary collaboration across materials science, electrochemistry, and mechanical engineering will be essential for the further advancement of this field.

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