Abstract Battery cell swelling — the volumetric expansion of lithium-ion cells during charge and discharge from lithium-ion intercalation, gas evolution, and temperature changes —…
1. Background During long-term cycling of lithium‑ion batteries, irreversible expansion caused by battery aging is a key factor limiting service life. Battery swelling is not mere…
1. The 4680 Format: Promise and the Expansion Challenge The 4680 cylindrical cell, championed by Tesla, represents a next-generation lithium battery technology. Its larger format …
1. Article Information Title: Inhomogeneous degradation mechanisms in LiFePO4 Graphite pouch cells under temperature and over-discharge coupled accelerated aging First Author: Rui…
1. The Challenge: Managing Volume Expansion in High-Energy Anodes In the race for higher energy density, silicon based anode materials are unparalleled due to their significantly …
1. Article Abstract Silicon-based electrodes are promising for high-capacity lithium-ion batteries but are challenged by large mechanical changes during cycling. This study—buildi…
1. Abstract This study characterizes thickness expansion during formation of silicon-carbon composite cells with different silicon loadings (450 Si/C vs 800 Si/C) using an …
1. Abstract The expansion behavior of silicon-carbon cells is primarily attributed to the volumetric expansion of the silicon component. Excessive accumulation of irreversible exp…
Abstract External pressure exerts a non-linear effect on battery cycle life in silicon-carbon anode cells: moderate compression reduces capacity fading by improving interfacial co…
1. Abstract Lithium plating (lithium dendrite formation) remains a principal failure mode in lithium-ion pouch cells, especially under fast charging, low temperature or when elect…
Abstract Cell mechanical stiffness affects appearance, module integrity and abuse resistance of lithium-ion batteries. We used an in-situ swelling analyzer (IEST SWE2110) to quant…
1. Preface Mechanical properties are an increasingly important performance axis for lithium-ion cells. In electric vehicles, cells experience external loads during assembly, therm…
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