Capacity fade in high energy silicon-graphite electrodes for lithium-ion batteries

Capacity fade in high energy silicon-graphite electrodes for lithium-ion batteries

A silicon-graphite blended anode is paired with a high capacity LiFePO4 reference/counter electrode to track irreversibility and lithium inventory. The LiFePO4 electrode provides a reliable, flat potential for dQ dV-1 analysis of LixSi and LixC electrochemical reactions. We relate this electrochemis...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2018, Vol.54 (29), p.3586-3589
Hauptverfasser: Dose, W M, Piernas-Muñoz, M J, Maroni, V A, Trask, S E, Bloom, I, Johnson, C S
Format: Artikel
Sprache:eng
Schlagworte:
Chemical reactions
Electrochemistry
Electrodes
ENERGY STORAGE
Graphite
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Lithium
Lithium-ion batteries
MATERIALS SCIENCE
Rechargeable batteries
Silicon
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Beschreibung
Zusammenfassung:A silicon-graphite blended anode is paired with a high capacity LiFePO4 reference/counter electrode to track irreversibility and lithium inventory. The LiFePO4 electrode provides a reliable, flat potential for dQ dV-1 analysis of LixSi and LixC electrochemical reactions. We relate this electrochemistry to the morphological and physical changes taking place.
ISSN:1359-7345
1364-548X
DOI:10.1039/c8cc00456k