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首页> 外文期刊>Advanced functional materials >Could Capacitive Behavior be Triggered in Inorganic Electrolyte-Based All-Solid-State Batteries?
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Could Capacitive Behavior be Triggered in Inorganic Electrolyte-Based All-Solid-State Batteries?

机译：Could Capacitive Behavior be Triggered in Inorganic Electrolyte-Based All-Solid-State Batteries?

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摘要

Recent studies in all-solid-state batteries (ASSBs) based on inorganic solidelectrolytes (ISEs) have improved the energy density to a higher level.However, its commercialization is still delayed by many intrinsic limitations,among which the fast-charging capability is not mentioned enough. Despitefew elaborately selected electrolytes coupled with electrodes that can deliveran extremely high rate, the rate improvement strategy is still lacking. Here,a novel and effective strategy of introducing liquid metal is demonstrated totrigger the capacitive behavior in the ASSBs for the first time. Two paramountcriteria of inducing capacitive behavior in ASSBs are proposed, and both ofthem are accomplished by utilizing liquid metal Ga. As a result, the capacitivebehavior contribution to total charge storage reaches 73 at 1 mV s~(?1). Benefittedfrom the improved kinetics, both an excellent rate of performance (81specific capacity retained at 5 C) and a good cyclability (0.02 decay per cycleduring 800 cycles at 1 C) are delivered. The universality of the liquid metalinduced capacitive behavior in ASSBs is further verified in multiple activematerials. This work provides a fundamental understanding of the origin ofthe capacitive behavior and opens a new route for fast-charging ASSBs.

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