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| Natural graphite/artificial graphite composite anode for lithium-ion batteries |
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Received:August 11, 2025
Revised:September 15, 2025
Accepted:September 26, 2025
Published Online:April 30, 2026
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| DOI：10.3969/j.issn.1005-7854.2025.05.014 |
| KeyWord:lithium-ion batteries;natural graphite;artificial graphite;composite modification;spray drying |
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1.School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;2.Chongqing Innovation Center, Beijing Institute of Technology, Chongqing 401120, China;3.China Minmetals Group Graphite Industry Co. Ltd. (Heilongjiang)
, Hegang 154100, Heilongjiang, China |
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| Abstract: |
| Against the backdrop of the "dual-carbon" strategy, the electric vehicles are progressively replacing fuel-powered vehicles to achieve carbon neutrality goals. As a key component of electric vehicles, the performance and manufacturing processes of lithium-ion batteries significantly impact the realization of the dual-carbon strategy. Among mainstream anode materials for lithium-ion batteries, artificial graphite offers superior performance but involves high production energy consumption and substantial carbon emissions, whereas natural graphite has lower energy consumption yet inferior performance. To resolve this conflict, natural graphite and artificial graphite were composited via spray drying, and the electrochemical performance of composite anodes with varying natural graphite/artificial graphite ratios was investigated. Results indicate that all composite anodes outperformed pure artificial graphite, with the 5∶5 natural-to-artificial graphite ratio demonstrating optimal performance—delivering a specific capacity of 360.7 mAh·g?1 after 550 cycles and a capacity retention rate of 98.4%. This approach provides a novel strategy for producing graphite anodes with low energy consumption and high performance. |
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