Thin vs. Thick Boride Films: A Tale of Stability in Solid-State Lithium Batteries. (IMAGE)

Tsinghua University Press

Thin vs. Thick Boride Films: A Tale of Stability in Solid-State Lithium Batteries.

Caption

Thin vs. Thick Boride Films: A Tale of Stability in Solid-State Lithium Batteries. This figure illustrates how boride film thickness dictates lithium-ion distribution and battery performance. Thin CoB films (5 minutes sputtering) enable uniform ion penetration, stable redox peaks, and long-term cycling stability, while thicker films (30–70 minutes) develop steep ion concentration gradients, unstable voltage plateaus, and inferior performance. The results highlight thickness as a critical design factor for achieving high-capacity, durable thin-film lithium batteries.

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Energy Materials and Devices, Tsinghua University Press

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