Journal ArticleDOI
Aging of a Commercial Graphite/LiFePO4 Cell
TLDR
In this article, the aging behavior of a commercial 2.3 Ah graphite/LFP cell during a year of cycling or storage at either 25 or 45 C was investigated, and the performance decline of the cells during the aging period was monitored by non-destructive electrochemical techniques and discussed in detail.Abstract:
The aging behavior of a commercial 2.3 Ah graphite/LFP cell during a year of cycling or storage at either 25 or 45 � C is investigated. The performance decline of the cells during the aging period is monitored by non-destructive electrochemical techniques and is discussed in detail. An in-depth analysis of the aging results reveals that aging manifests itself more in terms of capacity loss rather than in terms of impedance increase, regardless of the cycling or storage conditions and of the temperature. The capacity fade is larger at 45 � C than at 25 � C, regardless of the cycling or storage conditions, and at a same temperature, cycling conditions are always more detrimental to capacity fade than storage conditions. The loss of cyclable lithium is identified as the main source of capacity fade in all cases, and for the cells aged at 45 � C, a partial loss of graphite active material is suspected asread more
Citations
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A review on lithium-ion battery ageing mechanisms and estimations for automotive applications
Anthony Barré,Benjamin Deguilhem,Sebastien Grolleau,Mathias Gerard,Frédéric Suard,Delphine Riu +5 more
TL;DR: In this paper, the authors present a summary of techniques, models, and algorithms used for battery ageing estimation, going from a detailed electrochemical approach to statistical methods based on data, and their respective characteristics are discussed.
Journal ArticleDOI
Data-driven prediction of battery cycle life before capacity degradation
Kristen A. Severson,Peter M. Attia,Norman Jin,Nicholas Perkins,Benben Jiang,Zi Yang,Michael H. Chen,Muratahan Aykol,Patrick Herring,Dimitrios Fraggedakis,Martin Z. Bazant,Stephen J. Harris,Stephen J. Harris,William C. Chueh,Richard D. Braatz +14 more
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Journal ArticleDOI
Experimental investigation of the lithium-ion battery impedance characteristic at various conditions and aging states and its influence on the application
TL;DR: In this paper, a 40 Ah lithium-ion cell with nickel manganese cobalt oxide (NMC) cathode material was used to investigate the battery impedance and its dependence on the battery state-of-charge (SoC), temperature, current and previous history.
Journal ArticleDOI
Synthesize battery degradation modes via a diagnostic and prognostic model
TL;DR: In this paper, a mechanistic model that can enable battery diagnosis and prognosis is presented, which can simulate various "what-if" scenarios of battery degradation modes via a synthetic approach based on specific electrode behavior with proper adjustment of the loading ratio and the extent of degradation in and between the two electrodes.
References
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Journal ArticleDOI
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Journal ArticleDOI
Ageing mechanisms in lithium-ion batteries
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Journal ArticleDOI
Capacity Fade Mechanisms and Side Reactions in Lithium‐Ion Batteries
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Journal ArticleDOI
Cycle-life model for graphite-LiFePO4 cells
John Wang,Ping Liu,Jocelyn Hicks-Garner,Elena Sherman,Souren Soukiazian,Mark W. Verbrugge,Harshad Tataria,James W. Musser,Peter Finamore +8 more
TL;DR: Experimental results indicated that the capacity loss was strongly affected by time and temperature, while the DOD effect was less important, and attempts in establishing a generalized battery life model that accounts for Ah throughput, C-rate, and temperature are discussed.
Journal ArticleDOI
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