电池级合成石墨的碳足迹和脱碳潜力

IF 7.3 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

ACS Sustainable Chemistry & Engineering Pub Date : 2025-05-29 DOI:10.1021/acssuschemeng.5c00921

Fang Wang, Shaojun Zhang, Min Liu, Yiling Xiong, Daniel De Castro Gomez, Xin He, Mohammed A. Almoniee, Omar Hurtado Perez, Ziyu Liu, Xuexing Pan, Guangliang Lin, Ye Wu

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引用次数: 0

摘要

由于电池阳极的需求激增，天然石墨被列为关键矿物。然而，合成石墨（SG）因其优越的产品性能而主导着电池负极市场。SG生产及其碳足迹（CF）缺乏明确性，对电池CF法规的实施构成了挑战。在这里，我们检查了中国12家已运营和22家即将投产的SG工厂的流程解决库存，代表了全球电池级SG的主要产能。我们发现，由于原料和能源效率的差异，植物特异性碳当量平均为每吨SG 9.0吨CO2 (tCO2/t)，范围为6.8 ~ 12.9 tCO2/t。以油基针状焦为主要原料，经过额外炭化工艺的强化优质SG的CF值更高，达到11.2 tCO2/t。我们进一步预测，在SG生产中使用可再生电力和绿色氢可以有效地将CF降低41%至70%，为电池阳极材料提供了巨大的脱碳潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Carbon Footprint and Decarbonization Potential of Battery-Grade Synthetic Graphite

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Carbon Footprint and Decarbonization Potential of Battery-Grade Synthetic Graphite

Natural graphite was listed as a critical mineral due to the demand surge for battery anodes. However, synthetic graphite (SG) dominates the battery anode market because of its superior product performance. The lack of clarity regarding SG production and its carbon footprint (CF) poses challenges to the implementation of battery CF regulations. Here, the process-resolved inventories of 12 operational and 22 upcoming SG plants in China were examined, representing major capacities of global battery-grade SG. We reveal that the average plant-specific CF is 9.0 tonne CO₂ per tonne of SG (tCO₂/t), with a wide range of 6.8 ∼ 12.9 tCO₂/t, due to variances in feedstocks and energy efficiency. Reinforced premium SG that undergoes additional carbonization processes and uses oil-based needle coke as the main feedstock exhibits a higher CF of 11.2 tCO₂/t. We further project that the utilization of renewable electricity and green hydrogen in SG production could effectively reduce the CF by 41% to 70%, presenting substantial decarbonization potential for battery anode materials.

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来源期刊

ACS Sustainable Chemistry & Engineering CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL

CiteScore

13.80

自引率

4.80%

发文量

1470

审稿时长

1.7 months

期刊介绍： ACS Sustainable Chemistry & Engineering is a prestigious weekly peer-reviewed scientific journal published by the American Chemical Society. Dedicated to advancing the principles of green chemistry and green engineering, it covers a wide array of research topics including green chemistry, green engineering, biomass, alternative energy, and life cycle assessment. The journal welcomes submissions in various formats, including Letters, Articles, Features, and Perspectives (Reviews), that address the challenges of sustainability in the chemical enterprise and contribute to the advancement of sustainable practices. Join us in shaping the future of sustainable chemistry and engineering.