What does this research mean for the field?

A rationally designed nonporous high-entropy polymer separator enables the stable, long-term operation of lithium metal batteries across an ultra-wide temperature range of −70°C to 150°C by inhibiting lithium dendrites and parasitic reactions. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To develop a thermally robust battery separator capable of supporting lithium metal batteries across an ultra-wide temperature range from extreme cold to severe heat.

August 22, 2026Advanced Energy Materials

Entropy‐Mediated Nonporous Polymer Separator Unlocks Ultra‐Wide Temperature Range (−70°C to 150°C) Lithium Metal Batteries

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Authors

YWYongqi WangInner Mongolia University YHYaodong HuoGuangdong University of Technology 宋宋纯坤Inner Mongolia University

Discussion

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Implication

Experimental study demonstrates stable lithium metal battery operation from −70°C to 150°C using a high-entropy polymer separator, highlighting enhanced thermal safety and stability.

Key Points

To develop a thermally robust battery separator capable of supporting lithium metal batteries across an ultra-wide temperature range from extreme cold to severe heat.
Synthesized a nonporous high-entropy separator (HES) using a high-entropy polymer architecture to improve thermal stability, ion transport, and electrolyte wettability.
Evaluated interfacial stability and electrochemical performance in Li||Li symmetric cells and Li||V2O5 full batteries across temperatures from −70°C to 150°C.
Li||Li symmetric cells demonstrated extended cycling life of 2,200 hours at −70°C, 6,548 hours at 25°C, and 700 hours at 150°C.
The separator facilitated inorganic- and boron-rich solid and cathode electrolyte interphases that suppressed lithium dendrite growth and parasitic reactions, enabling full Li||V2O5 battery operation from −70°C to 150°C.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a895f74ca7ade938187e24f https://doi.org/10.1002/aenm.71480

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August 22, 2026Advanced Energy Materials

Entropy‐Mediated Nonporous Polymer Separator Unlocks Ultra‐Wide Temperature Range (−70°C to 150°C) Lithium Metal Batteries

View Full Paper

Ask AI

Bookmark

Authors

YWYongqi WangInner Mongolia University YHYaodong HuoGuangdong University of Technology 宋宋纯坤Inner Mongolia University

Discussion

Member takes

Implication

Experimental study demonstrates stable lithium metal battery operation from −70°C to 150°C using a high-entropy polymer separator, highlighting enhanced thermal safety and stability.

Key Points

To develop a thermally robust battery separator capable of supporting lithium metal batteries across an ultra-wide temperature range from extreme cold to severe heat.
Synthesized a nonporous high-entropy separator (HES) using a high-entropy polymer architecture to improve thermal stability, ion transport, and electrolyte wettability.
Evaluated interfacial stability and electrochemical performance in Li||Li symmetric cells and Li||V2O5 full batteries across temperatures from −70°C to 150°C.
Li||Li symmetric cells demonstrated extended cycling life of 2,200 hours at −70°C, 6,548 hours at 25°C, and 700 hours at 150°C.
The separator facilitated inorganic- and boron-rich solid and cathode electrolyte interphases that suppressed lithium dendrite growth and parasitic reactions, enabling full Li||V2O5 battery operation from −70°C to 150°C.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a895f74ca7ade938187e24f https://doi.org/10.1002/aenm.71480

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