利用富镍正极活性材料和硅-石墨复合阳极的锂离子电池袋电池自下而上的性能和成本评估

IF 5.4 Q2 CHEMISTRY, PHYSICAL Journal of Power Sources Advances Pub Date : 2021-06-01 DOI:10.1016/j.powera.2021.100055
Matthew Greenwood , Marc Wentker , Jens Leker
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引用次数: 25

摘要

与最先进的技术相比,富镍阴极活性材料(CAMs)和硅石墨复合阳极有望大幅提高锂离子电池(LIB)的性能。然而,为了与当前的LIB技术竞争,它们也必须以与它们的前辈具有竞争力的成本生产。本文采用石墨和硅-石墨复合阳极对基于当前和未来cam的全袋电池进行了建模,以检验每种技术的性能。然后利用当前公开市场的材料成本来估计生产每个电池的成本。然后将两者联系起来,以确定每个电池在USD kWh−1的基础上的值。未来的富镍cam将比目前的技术提供强大的性能优势,特别是如果它们的实验室规模的性能可以在商业规模上复制。硅石墨阳极同样显示出性能的提高,尽管这高度依赖于电池的化学和设计。然而,目前收集到的生产这些技术所需材料的公开市场价格太高,无法带来价值的提高。因此,计算了实现与当前技术同等价值所需的成本削减,并讨论了未来可能的发展。
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A bottom-up performance and cost assessment of lithium-ion battery pouch cells utilizing nickel-rich cathode active materials and silicon-graphite composite anodes

Nickel-rich cathode active materials (CAMs) and silicon-graphite composite anodes promise substantial lithium-ion battery (LIB) performance increases over state-of-the-art technologies. In order to compete with current LIB technologies, however, they must also be producible at a cost competitive with that of their predecessors. In this paper, full pouch cells based on state-of-the-art and prospective future CAMs are modeled using both graphite and silicon-graphite composite anodes to examine each technology's performance. Current open-market material costs are then utilized to estimate the costs of producing each cell. The two are then related to determine each cell's value on a USD kWh−1 basis. Future nickel-rich CAMs are shown to provide a strong performance advantage over current technologies, especially if their laboratory-scale performance can be replicated at a commercial scale. Silicon-graphite anodes likewise display performance gains, though these are shown to be highly dependent on cell chemistry and design. The collected current open-market prices of the materials needed to produce these technologies, however, are shown to be too high to result in a value improvement. Cost reductions necessary to achieve value parity with current technologies are thus calculated and possible future developments are discussed.

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来源期刊
CiteScore
9.10
自引率
0.00%
发文量
18
审稿时长
64 days
期刊最新文献
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