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Low-Temperature Lignin-Derived Carbon Electrodes Enabled by a Natural Casein Binder for Lithium-Ion, Sodium-Ion Batteries and Supercapacitors

天然カゼインバインダーを用いた低温リグニン由来炭素電極のリチウムイオン、ナトリウムイオン電池およびスーパーキャパシタへの応用 (AI 翻訳)

Xymena Gross, Beata Kurc, Ewelina Rudnicka, Jakub Tomasz, Maciej Galiński

Materials📚 査読済 / ジャーナル2026-05-27#エネルギー転換Origin: EU
DOI: 10.3390/ma19112271
原典: https://doi.org/10.3390/ma19112271

🤖 gxceed AI 要約

日本語

本研究は、kraftリグニンから低温炭化（300°C）で得た炭素材料に天然カゼインバインダーを組み合わせ、電極を開発。スーパーキャパシタ67 F/g、リチウムイオン電池250 mAh/g、ナトリウムイオン電池50 mAh/gの性能を示し、従来のバインダーより持続可能で経済的。

English

This study develops electrodes using kraft lignin carbonized at 300°C with natural casein binder, achieving 67 F/g for supercapacitors, 250 mAh/g for Li-ion and 50 mAh/g for Na-ion batteries, offering a sustainable and cost-effective alternative.

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

日本はバイオマス（リグニン）資源が豊富であり、リチウムイオン電池の代替材料として国内の蓄電技術向上に貢献する可能性がある。ただし、直接的なGX政策や開示要件との関連は薄い。

In the global GX context

This paper contributes to global GX by proposing a low-cost, sustainable electrode material from lignin and casein, supporting the transition to renewable energy storage. However, it does not directly address disclosure or policy frameworks.

👥 読者別の含意

🔬研究者:Shows a promising method to produce sustainable battery electrodes using low-temperature carbonization and natural binder, relevant for energy storage research.

🏢実務担当者:May inform eco-friendly battery manufacturing using waste lignin, though scalability needs further study.

📄 Abstract（原文）

This study presents a novel approach to the use of kraft lignin in electrochemical energy sources, with a focus on its use as anode material. The key novelty of this study is the use of natural casein as an innovative binder in electrode production, offering a sustainable and efficient alternative to conventional binders. The carbonaceous material was obtained from kraft lignin by two heat treatments at a relatively low temperature of 300 °C—one in a nitrogen atmosphere and the other in air. The results indicate that carbonization at this lower temperature provides promising electrochemical properties while improving cost-effectiveness and energy efficiency compared to higher temperature processes. Additionally, wettability analysis based on contact-angle measurements revealed substantially improved electrolyte affinity for casein-based electrodes, which correlates with their enhanced electrochemical performance. The study showed promising performance of the developed electrodes as follows: a capacity of 67 F g−1 for supercapacitor applications, 250 mAh g−1 for lithium-ion batteries, and 50 mAh g−1 for sodium-ion batteries. These results confirm that kraft lignin, in combination with casein as a binder, is an environmentally friendly and economically viable alternative to traditional electrode materials.

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