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GONFLEMENT IRREVERSIBLE [1 record]

Record 1 2006-06-14

English

Subject field(s)
  • Storage Cells (Electr.)
  • Inspection for Defects (Materials Engineering)
OBS

The electrode dilatometer ... monitors two concurrent processes involved in the swelling of electrodes, ... the reversible swelling of active mass in an electrode [and] the irreversible swelling of the electrode, which adds to the cumulative swelling.

OBS

Contrary to irreversible swelling of the electrode material, reversible swelling is beneficial for battery cycle life since it provides chemical species (hydrogen ions) with better access into the electrode active mass.

French

Domaine(s)
  • Accumulateurs (Électricité)
  • Détection des défauts des matériaux
OBS

Le dilatomètre d'électrode [permet de] mesurer, en temps réel et sur place, le gonflement des matériaux des électrodes de piles [et] peut distinguer entre [les] gonflements réversible et irréversible (ou cumulatif).

OBS

Contrairement au gonflement irréversible, le gonflement réversible est bénéfique pour le cycle de vie de la pile puisqu'il procure aux espèces chimiques (ions d'hydrogène) un meilleur accès à la masse active de l'électrode.

Spanish

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