Radical Regulation of Bamboo Pyrolysis by Low‐Density Polyethylene Enables High‐Efficiency Hard Carbon Anodes for Sodium‐Ion Batteries
低密度ポリエチレンによる竹熱分解のラジカル制御によりナトリウムイオン電池用高効率ハードカーボンアノードを実現 (AI 翻訳)
Dong Xie, Bingwu Wang, Ying Huang, Yang Yu, Moqi Zhang, Yue Wang, Xiulan Qin, Tingting Xu, Long Kong, Ke Wang
🤖 gxceed AI 要約
日本語
本研究では、竹と低密度ポリエチレン(LDPE)の共熱分解により、ナトリウムイオン電池用ハードカーボンの微細構造を制御する手法を提案。擬黒鉛領域と閉孔構造を形成し、367.4mAh/gの可逆容量と89.6%の初回クーロン効率を達成。500サイクル後も92.5%の容量維持を示し、実用化への道筋を提示する。
English
This work demonstrates a scalable co-pyrolysis strategy using bamboo and LDPE to tailor the microstructure of hard carbon for sodium-ion batteries. The optimized material achieves a reversible capacity of 367.4 mAh g−1 with 89.6% initial Coulombic efficiency and 92.5% capacity retention after 500 cycles, offering a path toward commercial hard carbon anodes.
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
日本でもナトリウムイオン電池はリチウム代替技術として注目されており、バイオマス利用による低コスト化はGX戦略に寄与する可能性がある。ただし本論文は基礎材料研究であり、現時点では国内政策への直接的な示唆は限定的。
In the global GX context
Sodium-ion batteries offer a lithium-free alternative for energy storage, critical for the global energy transition. This material innovation improves hard carbon anode performance, enabling more sustainable and less geopolitically constrained battery supply chains.
👥 読者別の含意
🔬研究者:Provides a novel precursor-modulation strategy for tailoring hard carbon microstructure, relevant for battery materials scientists.
🏢実務担当者:For battery manufacturers: scalable co-pyrolysis approach that could lower anode costs, but further scale-up validation is needed.
🏛政策担当者:Supports development of alternative battery technologies, potentially reducing dependence on lithium; relevant for energy security and GX policy.
📄 Abstract（原文）
ABSTRACT Hard carbon has emerged as a highly promising anode material for sodium‐ion batteries. However, rational regulation of its microstructure to achieve synergistic enhancement in electrochemical performance remains a critical challenge. In this work, we demonstrate a scalable co‐pyrolysis strategy that integrates bamboo biomass with low‐density polyethylene (LDPE) to regulate free‐radical evolution and interactions during pyrolysis, thereby enabling the tailored formation of pseudo‐graphitic domains and closed‐pore architectures in biomass‐derived hard carbon. Through systematic structural, spectroscopic, and electrochemical analyses, including in situ Raman spectroscopy and the galvanostatic intermittent titration technique (GITT), we establish multiscale correlations among preparation parameters, structural evolution, sodium‐ion storage behavior, and overall electrochemical performance. The optimized hard carbon delivers a reversible capacity of 367.4 mAh g −1 , with an initial Coulombic efficiency of 89.6%, and retains 92.5% of its capacity after 500 cycles at 0.1 A g −1 . This work provides a novel precursor‐modulation strategy to facilitate the practical commercialization of hard carbon for high‐performance sodium‐ion batteries.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1002/smll.74627first seen 2026-07-18 05:39:00
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