Fibrous Materials for Flexible Li-S Battery

The lithium-sulfur (Li-S) battery is an attractive high-energy-density technology for future flexible and wearable electronics, but it is a challenge to simultaneously realize adequate flexibility, stability, and energy density. Recent studies show that fibrous materials are promising to achieve flexible batteries with high energy density, by taking advantages of their intrinsic flexibility, lightweight, large surface area, and cost-effectiveness. With a good tunability of the structure and function, fibrous materials can be suitable to construct various components of a working battery, including current collectors, buffer layers, interlayers, and solid-state electrolytes. This review summarizes the recent development of fibrous materials for flexible Li-S batteries, with an emphasis on the discussion of the synthesis and preparation of materials, design of fibrous structures and functionalities, and layout of battery cells for achieving high Coulombic efficiency, long cycle life, and good flexibility.

Automated summary

Fibrous materials show promising prospects for achieving high-energy-density flexible Li-S batteries due to their intrinsic flexibility, lightweight, large surface area, and cost-effectiveness. These materials can be suitable for constructing various battery components and offer good tunability of structure and function. The review focuses on recent developments in fibrous materials for flexible Li-S batteries, with an emphasis on material synthesis, design of fibrous structures and functionalities, and battery cell layout for achieving high Coulombic efficiency, long cycle life, and good flexibility.