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Biomass-based solid-state electrolyte: An emerging material toward high-performance and sustainable solid-state batteries
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DOI：10.1016/j.mattod.2025.10.012.png)
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Abstract
En 中文
Solid-state lithium metal batteries (SSLMBs) have been widely considered the next-generation electrochemical energy storage technology due to their high energy density and intrinsic safety. Biomass materials are emerging solid-state electrolytes (SSEs) for advanced SSLMBs because they exhibit unique physical and chemical properties coming from their natural compositions, diverse structures, and ample functional groups. In addition, biomass materials are inexpensive, abundant, sustainable, modifiable, flexible, and easy to handle. Therefore, they are expected to provide high ionic conductivity, manipulated mechanical strength, excellent interfacial contacts, large scalability, and high sustainability, which cannot be simultaneously achieved by traditional polymer-based and ceramic-based SSEs. Recently, significant progress has been made in the area of biomass-based SSEs. However, they are individually researched without providing a systematical and comprehensive understanding on the general design of biomass-based SSEs, motivating us to formulate this review. Firstly, we summarize the structures and properties of common biomass materials. Subsequently, we review the primary advances of pure biomass SSEs and biomass-based composite SSEs. In addition, we emphasize the design of multifunctional biomass-based SSEs, including self-healing, all-climate operation, and interfacial regulation. Finally, we present key insights into the present challenges and perspective with a focus on efficient design and utilization of biomass-based SSE.