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Cathode materials for single-phase solid-solid conversion Li-S batteries
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DOI：10.1016/j.matt.2022.11.019.png)
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Abstract
En 中文
Widespread adoption of lithium-sulfur batteries (LSBs) remains in-hibited, given their unrealized energy densities, drastic capacity fade, and severe self-discharge stemming from the polysulfide shut-tle effect. Although countless endeavors have attempted to over-come this key bottleneck, shuttle-freelithium-sulfur batteries (SfLSBs) that operate by single-phase solid-solid conversion are a preeminent technology with vast potential to facilitate universal adoption of LSBs. In this review, we first provide a fundamental understanding of SfLSBs by comparing their operating mechanism with traditional LSBs. Then we present various strategies that have been used to enable SfLSBs in the liquid and solid state, placing particular emphasis on cathode materials. Finally, perspectives ranging from fundamental research to practical engineering design are provided to bolster future endeavors regarding SfLSB tech-nology.
Keywords:
LITHIUM-SULFUR BATTERIES
HIGH-PERFORMANCE
STATE BATTERIES
CONFINING SULFUR
STABLE CATHODE
ENERGY-DENSITY
POROUS CARBON
COMPOSITE
ELECTROLYTE
CAPACITY
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