Optimizing Energy Efficiency in Lab Scale LFP Battery Cell: LCA Approach to Improve Environmental Performance

The increasing demand on battery energy storage technologies that are sustainable and efficient makes it important to assess aproduct's entire life cycle, from the extraction of raw materials to end-of-life treatment. In the context of LFP batteries, whichare increasingly employed for their safety, longevity, and better environmental performance, a lab-scale LCA of a batteryserves as a crucial tool for identifying and mitigating potential environmental hotspots stemming from its cradle-to-gateimpacts.In this particular field, there is a research gap, given the distinctive differences between laboratory-scale manufacturing andlarger-scale production. These variations encompass unique energy consumption patterns, challenges in resource utilization,and technological limitations. This study aims to investigate the amount of energy, which is utilized by equipment in dry roomoperations, and during battery cell manufacturing.A cradle-to-gate life cycle assessment is carried out for the battery cell. The functional unit considered is battery storagecapacity measured in kilowatt-hours (kWh). Battery has a mass of 26g, average voltage 3.2V, and has an energy density of92Wh/kg. Primary data is from the pilot line and respective background database processes is from Ecoinvent 3.9.1. Twoscenarios were considered, where in real time scenario with 5 cells per day equal capacity 11.6. If the lab unit had a continuousscale of production, it could produce 16 cells per day with total capacity of 38.3Wh which would be the ideal case scenario.For the manufacture of 5 LFP battery cells, the highest unit process energy consumption comes from the dry and formationroom counting up to 86% of total consumption. Lab-scale operations may require more thorough testing, experimentation, andprototyping, potentially resulting in higher demands on the dry and formation room’s-controlled environment. The Life cycleimpact assessment showed that there is a reduction of GWP by 69% per cell manufactured if the laboratory unit was running infull capacity (ReCiPe 2016 midpoint-H).The study makes particular recommendations for future research, such as investigating lab-scale energy dynamics in moredetail, identifying potential hotspots along with a mitigation strategy, and also taking renewable energy integration intoaccount. These intended suggestions seek to close the noted research gap and advance the continuous advancement ofenvironmentally friendly manufacturing methods.