Atomic Precision Engineered Silicon‐Carbon Composites for High‐Durability and Low‐Swelling Lithium‐Ion Batteries
原子精度で設計されたシリコン-カーボン複合材料による高耐久性・低膨張リチウムイオン電池 (AI 翻訳)
Fengjun Ji, Jingchuan Gao, Xueyi Nie, Guanglu Wei, Tiansheng Bai, Hongqiang Zhang, Haonan Wang, Yu Wang, Min Zhang, Lili Zhi, Jingyu Lu, Wei Zhai, Lijie Ci, Deping Li
🤖 gxceed AI 要約
日本語
本研究では、シリコンアノードの体積膨張問題を解決するため、原子レベルでシリコンを多孔質炭素に閉じ込めた複合材料を開発。この材料は、内部空隙により膨張を吸収し、2Ahパウチセルで1000サイクル後81.2%の容量維持率と11.5%の低膨張を達成。工業生産規模(100kg/バッチ)でもコスト競争力を示し、実用化への道を開いた。
English
This work develops a silicon-carbon composite with atomic-level confinement of silicon in microporous carbon to mitigate volume expansion. In 2 Ah pouch cells, it achieves 81.2% capacity retention after 1000 cycles with only 11.5% swelling. Industrial-scale production (100 kg/batch) confirms cost-competitiveness, enabling commercial high-performance silicon 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
本成果は、リチウムイオン電池のシリコンアノード実用化における最大課題である体積膨張を克服し、高エネルギー密度・長寿命の電池を工業規模で製造可能にする。日本のEV・蓄電池業界にとって航続距離向上やコスト低減に直結する重要技術である。
In the global GX context
This paper presents an industrially scalable solution to the volume expansion problem in silicon anodes, achieving high capacity retention and low swelling in pouch cells. It offers a practical pathway for commercializing high-energy-density lithium-ion batteries, critical for global EV adoption and energy storage.
👥 読者別の含意
🔬研究者:This paper provides a novel atomic-level confinement strategy with scalable synthesis, offering insights for advanced battery materials design.
🏢実務担当者:Battery manufacturers can leverage the demonstrated 100 kg/batch process to produce high-durability, low-swelling silicon anodes at competitive cost.
🏛政策担当者:Policymakers supporting battery R&D should note this breakthrough as it addresses key performance bottlenecks for EV adoption.
📄 Abstract（原文）
ABSTRACT The deployment of silicon anodes in high‐energy lithium‐ion batteries is restricted by substantial volume expansion during cycling. Herein, we report a scalable synthetic strategy for a silicon‐confined porous carbon composite anode to mitigate this limitation. Through an industrial‐scale process, we achieved the atomic‐level confinement of silicon, chemically anchoring single atoms and nanoclusters (below 1.0 nm) within the microporous architecture of a robust carbon host. This engineered structure utilizes pre‐reserved internal void space to accommodate lithiation‐induced expansion, significantly mitigating macroscopic electrode swelling relative to conventional materials. When integrated into 2 Ah P‐Si/C‐Gr||NCM811 pouch cells, the resulting cells deliver a high capacity retention of 81.2% after 1000 cycles with only 11.5% cell swelling. Furthermore, industrial production analysis confirms high consistency and cost‐competitiveness, establishing a viable pathway linking fundamental atomic‐level materials design with commercial requirements (100 kg/batch) for high‐performance silicon anodes.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1002/aenm.71319first seen 2026-07-24 05:44:23
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