Use of b2o3 additive in non-aqueous rechargeable lithium...

Details Use of b2o3 additive in non-aqueous rechargeable lithium... Use of b2o3 additive in non-aqueous rechargeable lithium...

H - Electricity

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M

H01M 10/26 (2006.01) H01M 4/62 (2006.01) H01M 10/40 (2006.01) H01M 6/10 (2006.01) H01M 6/16 (2006.01)

Patent

CA 2175755

The loss in delivered capacity upon cycling non-aqueous rechargeable lithium batteries can be reduced by incorporating a small amount of B2O3 additive in the electrolyte. The B2O3 additive is preferably dissolved in the electrolyte prior to assembling the battery. The invention is particularly suited to lithium ion rechargeable batteries.

La perte de puissance débitée au cours des cycles successifs de charge-décharge des piles rechargeables non aqueuses au lithium peut être réduite par l'incorporation d'une petite quantité d'additif B2O3 dans l'électrolyte. L'additif B2O3 est, de préférence, dissous dans l'électrolyte avant l'assemblage de la pile. L'invention convient particulièrement aux piles rechargeables à ion lithium.

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