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首页> 外文期刊>Journal of manufacturing science and engineering: Transactions of the ASME >Analysis of Deposition Methods for Lithium-Ion Battery Anodes Using Reduced Graphene Oxide Slurries on Copper Foil
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Analysis of Deposition Methods for Lithium-Ion Battery Anodes Using Reduced Graphene Oxide Slurries on Copper Foil

机译：铜箔上石墨烯氧化物浆料锂离子电池阳极沉积方法分析

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摘要

Graphene oxide (GO) slurries were deposited onto copper foil for use in lithium-ion battery anodes to determine the best deposition method(s) for research or high-volume manufacturing. Four deposition methods were tested: doctor blade, Mayer rod, slot die, and low volume low pressure (LVLP) spray. Analytical models that link tooling and process characteristics to mass flow rate of slurry and the resulting dry deposition height are developed and validated experimentally. While all methods successfully produced functioning batteries, a number of different qualitative and quantitative metrics from experimental results identified the best method for both situations. Observations were recorded on adhesion, deposition consistency, usability, and cleanability. Data on specific discharge capacity were recorded to show performance over the anode lifetime and at different charge/discharge rates. The data indicate that anodes produced using reduced graphene oxide (rGO) deliver a specific charge storage capacity of 50 to 400 mAh/g at charge-discharge rates of 1 C to 0.05 C. Doctor blading proved to be best for laboratory setups because of its adjustability, while the Mayer rod shows promise for high-volume manufacturing due to better performance and the use of nonadjustable, dedicated tooling. All methods, analysis, and metrics are discussed.
机译：将氧化物氧化物（GO）浆液沉积在铜箔上，用于用于锂离子电池阳极，以确定用于研究或高批量生产的最佳沉积方法。测试了四种沉积方法：刮刀，Mayer杆，槽模​​和低体积低压（LVLP）喷雾。通过实验开发并验证了浆料质量流量和所得的干沉积高度和所得的干沉积高度的分析模型。虽然所有方法成功地生产了功能电池，但是从实验结果中获得了许多不同的定性和定量度量，确定了两个情况的最佳方法。记录粘附，沉积一致性，可用性和可清洁性的观察结果。记录有关特定放电容量的数据以显示对阳极寿命和不同电荷/放电速率的性能。该数据表明，使用降脂的氧化石墨烯（RGO）产生的阳极在1c至0.05℃的电荷 - 放电速率下提供50至400mAh / g的特定电荷存储容量，证明是最适合实验室设置的可调节性，而Mayer Rod由于更好的性能和使用非可调节，专用工具而显示了高批量生产的承诺。讨论了所有方法，分析和度量。

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