Abstract
This project at the DOE Battery Manufacturing R&D Facility (BMF) at Oak Ridge National Laboratory (ORNL) has built research successes on advanced battery processing science and engineering (PSnE), cost reduction, and cell energy and power density improvements. Our goal is to perform the processing science and engineering needed to reduce high-risk, high-payoff technologies to lower risk levels, such that the U.S. industry will consider their integration in future products.Electron beam curing is demonstrated as a promising method for high speed, low cost and environmentally friendly battery electrode manufacturing. This work reports transfer of this process to pilot scale equipment and evaluation of electrochemical performance in prototype 1.5 Ah pouch cells. Thick NMC composite electrodes with an areal loading of 25 mg cm−2 (∼4 mAh cm−2) are successfully cured at a line speed of 500 feet per minute. This work demonstrates that electron beam curing is a promising method for manufacturing thick battery electrodes at high speeds and low capital/operation cost.
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