Chemomechanics: Friend or foe of the "AND problem" of solid-state batteries?. Issue 4 (August 2022)

• Record Type: Journal Article
• Authors: Ahmad, Zeeshan; Venturi, Victor; Sripad, Shashank; Viswanathan, Venkatasubramanian
• Is Part Of: Current opinion in solid state & materials science. Volume 26:Issue 4(2022)
• Publication Date: 2022-08
• Subjects: Batteries -- Solid-state -- Chemomechanics; Materials science -- Periodicals; Solid state physics -- Periodicals; 620.11
• DOI: 10.1016/j.cossms.2022.101002
• Languages: English
• ISSNs: 1359-0286

Abstract

Highlights: Review of chemomechanical origins of failure mechanisms in solid-state batteries. Analysis of modified thermodynamics, kinetics, contact mechanics, stack pressure. Discussion on crack propagation, pitting, and grain boundary penetration. New research paths: failure mechanism origins and stress-electrochemistry coupling. Abstract: Solid electrolytes are widely considered as the enabler of lithium metal anodes for safe, durable, and high energy density rechargeable lithium-ion batteries. Despite the promise, failure mechanisms associated with solid-state batteries are not well-established, largely due to limited understanding of the chemomechanical factors governing them. We focus on the recent developments in understanding solid-state aspects including the effects of mechanical stresses, constitutive relations, fracture, and void formation, and outline the gaps in the literature. We also provide an overview of the manufacturing and processing of solid-state batteries in relation to chemomechanics. The gaps identified provide concrete directions towards the rational design and development of failure-resistant solid-state batteries.