Biochar as a Renewable Substitute for Carbon Black in Lithium-Ion Battery Electrodes
Biochar as a Renewable Substitute for Carbon Black in Lithium-Ion Battery Electrodes
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生物炭作为锂离子电池电极中炭黑的可再生替代品
DOI：
10.1021/acssuschemeng.2c02974
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发表时间：
2022
影响因子：
8.4
通讯作者：
Stadie, Nicholas P.
中科院分区：
文献类型：
--
作者：
Kane, Seth;Storer, Aksiin;Xu, Wei;Ryan, Cecily;Stadie, Nicholas P.
摘要制备了木质素生物炭，并对其作为导电电极添加剂和锂离子电池活性主体材料的应用前景进行了表征。这种生物炭因其高导电性而被特别选择，其导电性可与常见的导电炭黑标准（例如Super P）相媲美。由于其高导电性，这种生物炭在以石墨为活性材料的电极中作为有效的导电添加剂，与使用炭黑作为添加剂的电极相比，显示出略微提高的电池效率和速率能力。尽管生物炭作为锂离子电池阳极的导电添加剂是有效的，但初步结果表明，本研究开发的生物炭并不适合直接替代炭黑作为lifepo4阴极的导电添加剂。后一种不足可能是由于生物炭和炭黑之间颗粒几何形状的差异；进一步的优化是必要的，以允许生物炭作为一种通用的导电添加剂在lib中的应用。然而，这些研究结合对生物炭生产产生的温室气体排放的评估表明，用生物炭代替炭黑可能是提高lib可持续性的有效方法。
Lignin-derived biochar was prepared and characterized toward potential applications as a conductive electrode additive and active lithium host material within lithium-ion batteries (LIBs). This biochar was specifically selected for its high electrical conductivity, which is comparable to that of common conductive carbon black standards (e.g., Super P). Owing to its high electrical conductivity, this biochar serves as an effective conductive additive within electrodes comprising graphite as the active material, demonstrating slightly improved cell efficiency and rate capability over those of electrodes using carbon black as the additive. Despite its effectiveness as a conductive additive in LIB anodes, preliminary results show that the biochar developed in this work is not suitable as a direct replacement for carbon black as a conductive additive in LiFePO4cathodes. This latter insufficiency may be due to differences in particle geometry between biochar and carbon black; further optimization is necessary to permit the application of biochar as a general-purpose conductive additive in LIBs. Nevertheless, these investigations combined with an assessment of greenhouse gas emissions from biochar production show that replacing carbon black with biochar can be an effective method to improve the sustainability of LIBs.
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影响因子：
5.2
作者：
Kane, Seth;Warnat, Stephan;Ryan, Cecily
通讯作者：
Ryan, Cecily
DOI：
--
发表时间：
2016
期刊：
影响因子：
--
作者：
Y. Kodera;M. Kaiho
通讯作者：
M. Kaiho
影响因子：
6
作者：
R. Xu;L. Ferrante;K. Hall;C. Briens;F. Berruti
通讯作者：
F. Berruti
影响因子：
4.2
作者：
S. Singh;Anthony W. Savoy;Zhaoyang Yuan;Hao Luo;S. Stahl;E. Hegg;D. Hodge
通讯作者：
D. Hodge