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Capacity Fading Mechanisms of Silicon Nanoparticle Negative Electrodes for Lithium Ion Batteries

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0731512jes· OSTI ID:1454696
 [1];  [2];  [2];  [2]
  1. Univ. of Rhode Island, Kingston, RI (United States); Rhode Island University
  2. Univ. of Rhode Island, Kingston, RI (United States)
+ Show Author Affiliations
A thorough analysis of the evolution of the voltage profiles of silicon nanoparticle electrodes upon cycling has been conducted. The largest changes to the voltage profiles occur at the earlier stages (> 0.16 V vs Li/Li+) of lithiation of the silicon nanoparticles. The changes in the voltage profiles suggest that the predominant failure mechanism of the silicon electrode is related to incomplete delithiation of the silicon electrode during cycling. The incomplete delithiation is attributed to resistance increases during delithiation, which are predominantly contact and solid electrolyte interface (SEI) resistance. The capacity retention can be significantly improved by lowering delithiation cutoff voltage or by introducing electrolyte additives, which generate a superior SEI. The improved capacity retention is attributed to the reduction of the contact and SEI resistance.
Research Organization:
Brown Univ., Providence, RI (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0007074
OSTI ID:
1454696
Journal Information:
Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 12 Vol. 162; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (20)

Probing the Critical Role of Sn Content in SnSb@C Nanofiber Anode on Li Storage Mechanism and Battery Performance journal December 2017
On the Capacity Losses Seen for Optimized Nano‐Si Composite Electrodes in Li‐Metal Half‐Cells journal July 2019
Interfacial Incompatibility and Internal Stresses in All‐Solid‐State Lithium Ion Batteries journal August 2019
Graphit‐ und‐Silicium‐Anoden für Lithiumionen‐ Hochenergiebatterien journal October 2019
Integration of Graphite and Silicon Anodes for the Commercialization of High‐Energy Lithium‐Ion Batteries journal January 2020
Effect of Morphologically Different Conductive Agents on the Performance of Silicon Anode in Lithium-Ion Batteries journal October 2018
Quantification and modeling of mechanical degradation in lithium-ion batteries based on nanoscale imaging journal June 2018
Towards High Capacity Li-ion Batteries Based on Silicon-Graphene Composite Anodes and Sub-micron V-doped LiFePO4 Cathodes journal November 2016
Slurry-Coated Sheet-Style Sn-PAN Anodes for All-Solid-State Li-Ion Batteries journal January 2019
Capacity Fading Mechanism and Improvement of Cycling Stability of the SiO Anode for Lithium-Ion Batteries journal January 2018
Monitoring the Lithium Concentration across the Thickness of Silicon-Graphite Electrodes during the First (De-)Lithiation journal January 2019
Surface Film Degradation on LiCoO 2 Electrode by Hydrogen Fluoride Attack at Moderately Elevated Temperature and CuO Addition to Mitigate the Degradation journal January 2019
Simulations of a LiF Solid Electrolyte Interphase Cracking on Silicon Anodes Using Molecular Dynamics journal January 2018
Effects of Mechanical Compression on the Aging and the Expansion Behavior of Si/C-Composite|NMC811 in Different Lithium-Ion Battery Cell Formats journal January 2019
Morphological Changes of Silicon Nanoparticles and the Influence of Cutoff Potentials in Silicon-Graphite Electrodes journal January 2018
Quantifying the Distribution of Electrolyte Decomposition Products in Silicon-Graphite Electrodes by Neutron Depth Profiling journal January 2018
Lithium Salt Effects on Silicon Electrode Performance and Solid Electrolyte Interphase (SEI) Structure, Role of Solution Structure on SEI Formation journal January 2017
Differentiating the Degradation Phenomena in Silicon-Graphite Electrodes for Lithium-Ion Batteries journal January 2017
Quantification and modeling of mechanical degradation in lithium-ion batteries based on nanoscale imaging text January 2018
On the Capacity Losses Seen for Optimized Nano‐Si Composite Electrodes in Li‐Metal Half‐Cells text January 2019

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