Superior Performance of Activated Carbon Cathode Materials for Rechargeable Li-Cl <sub>2</sub> Batteries at Low Temperature
低温におけるLi-Cl₂電池用活性炭カソード材料の優れた性能 (AI 翻訳)
Weicheng Zhou, Ying Han, Ruizhen Jiang, Yongkang Ma, Lijun Gao
🤖 gxceed AI 要約
日本語
本研究は高表面積活性炭（3200 m²/g）をLi-Cl₂電池のカソードとして応用し、−20℃で2000 mAh/gという高容量と410サイクル以上の安定動作を実現した。低温環境が不可逆的LiCl生成を抑制し、Cl₂の利用性を高めることで常温より優れた性能を示す機構を解明。高エネルギー密度電池の低温性能課題に対する新たなアプローチを提供する。
English
This study applies high-surface-area activated carbon (3200 m²/g) as cathode for Li-Cl₂ batteries, achieving 2000 mAh/g capacity at -20°C with >410 stable cycles. Low temperature suppresses irreversible LiCl formation and enhances Cl₂ availability, outperforming room temperature. Offers a novel approach to low-temperature performance of high-energy-density lithium-chlorine batteries.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本のGX文脈では、蓄電池の低温性能向上は電気自動車や再生可能エネルギー貯蔵の普及促進に寄与する。この研究成果は、寒冷地でのEV運用や系統用蓄電池の信頼性向上につながる可能性がある。
In the global GX context
Globally, this work advances high-energy-density battery technology, critical for electric vehicle range and grid storage reliability in cold climates. It demonstrates that low temperature can be exploited for better cycle life, challenging conventional battery degradation models.
👥 読者別の含意
🔬研究者:This work provides mechanistic insights into low-temperature enhancement of Li-Cl2 batteries and demonstrates the potential of high-surface-area activated carbon cathodes.
🏢実務担当者:Battery manufacturers can explore activated carbon cathodes for Li-Cl2 chemistry to improve cold-weather performance, though commercialization is early.
📄 Abstract（原文）
Rechargeable lithium-chlorine (Li-Cl 2 ) batteries have garnered significant interest due to their high energy density, yet challenges such as the cycling stability and low-temperature adaptability remain to be tackled. This study successfully applied high surface area activated carbon material (3200 m 2 g −1 ) to the cathode of a lithium-chlorine battery with AlCl 3, LiFSI, LiTFSI, LiCl, and SOCl 2 electrolytes, which demonstrate exceptional electrochemical performance. The results indicate that the Li-Cl 2 @AC battery can be cycled stably within a wide current density range of 0.5−5 A g −1 . Remarkably, the system exhibits an anomalous low-temperature enhancement effect: at −20 °C, a high capacity of 2000 mAh g −1 is demonstrated, and a stable charge/discharge for over 410 cycles is achieved, a performance significantly superior to that of room temperature. Mechanistic studies show that the low-temperature environment effectively reduces the generation of irreversible LiCl and enhances Cl 2 availability, thereby substantially extending the cycle life of the battery. This work not only demonstrates the potential of high surface area activated carbon materials in Li-Cl 2 batteries but also provides an innovative approach to addressing the low-temperature performance issue of high-energy-density lithium-chlorine batteries.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acsaem.6c00969first seen 2026-06-14 04:47:40 · last seen 2026-06-16 04:51:34
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