Water-based manufacturing processes are under development for greener manufacturing of lithium ion batteries but their environmental impacts are unclear with new introduced materials and a large consumption of deionized water. We report a life cycle assessment (LCA) study on the water-based manufacturing of the most popular NMC-graphite battery pack configured with 57 kWh capacity. A life cycle model has been developed based on experimental and mathematical studies of the water-based manufacturing processes. Per kg battery pack produced, the water-based manufacturing can reduce the manufacturing energy by 43% and lower the cradle-to-gate life cycle impacts by 0.6%∼88% over conventional battery manufacturing.

水基制造工艺正在开发中，以实现锂离子电池的绿色制造，但由于新引入的材料和大量的去离子水消耗，它们对环境的影响尚不清楚。我们报告了对配备 57 kWh 容量的最受欢迎的 NMC 石墨电池组的水性制造的生命周期评估 (LCA) 研究。基于对水基制造过程的实验和数学研究，开发了生命周期模型。每生产一公斤电池组，水基制造可以比传统电池制造降低43%的制造能耗，并将从摇篮到门的生命周期影响降低0.6%~88%。