articleJournal of The Electrochemical SocietyMay 5, 2022HYBRID OA

Review—“Knees” in Lithium-Ion Battery Aging Trajectories

PMPeter M. AttiaABAlexander BillsFBFerran Brosa PlanellaPDPhilipp DechentGDGonçalo dos Reis

Stanford University · Carnegie Mellon University · +14 more institutions

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Abstract

Lithium-ion batteries can last many years but sometimes exhibit rapid, nonlinear degradation that severely limits battery lifetime. In this work, we review prior work on “knees” in lithium-ion battery aging trajectories. We first review definitions for knees and three classes of “internal state trajectories” (termed snowball, hidden, and threshold trajectories) that can cause a knee. We then discuss six knee “pathways”, including lithium plating, electrode saturation, resistance growth, electrolyte and additive depletion, percolation-limited connectivity, and mechanical deformation—some of which have internal state trajectories with signals that are electrochemically undetectable. We also identify key design…

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433
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Authors

17

Topics & keywords

Topics
Keywords
  • Battery (electricity)
  • Internal resistance
  • Lithium-ion battery
  • Electrolyte
  • Lithium (medication)
  • Work (physics)
  • Computer science
  • Electrode
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