Calendar and cycle ageing of commercial sodium-ion cells with layered oxide cathodes: how does operation influence degradation modes?

January 1, 2026EES batteries.Open Access

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Key Points

This research aims to explore how operation influences degradation modes in sodium-ion batteries with layered oxide cathodes.
Evaluated battery performance under different operational conditions.
Assessed calendar and cycle ageing effects on battery life.
Measured degradation modes specific to sodium-ion technology.
Found that operational conditions significantly impact degradation modes of sodium-ion cells.
Identified specific ageing patterns linked to layered oxide cathodes.
Demonstrated potential for enhanced longevity in sodium-ion batteries with optimized operations.

Compares degradation modes of sodium-ion batteries during operation, suggesting optimal performance strategies.

Despite the continuous success of lithium-ion batteries, sodium-ion batteries pose a relevant alternative to lithium-based storage systems.

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Bahrke et al. (2026) studied this question.

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