Performance Evaluation and Analysis of Rolechem's New ARC-S14 PRS (PST) Derivative

Rolechem has launched its new additive, ARC-S14. As a derivative of PRS (PST), this product delivers exceptional high-temperature performance while significantly reducing cell impedance, outperforming PRS in all aspects. We welcome industry partners to engage with us for further discussions.

Cell Type: 1Ah pouch cell Chemistry System: LCO / Graphite Voltage Window: 3.0 V – 4.45 V Electrolyte Baseline (Ref): EC : PC : DMC = 6 : 1 : 3 , 1.1M LiPF6, with VC additive Reference Group: 1% PRS (PST) Experimental Group: 1% S14

S14 exhibits a higher reduction potential than PRS. As seen from the differential capacity curve, S14 forms a protective film earlier than PRS during the formation stage, resulting in higher film-forming efficiency. The impedance of S14 is significantly lower than that of PRS, effectively overcoming the drawbacks of high impedance and poor low-temperature performance associated with PRS. Furthermore, S14 enhances the already excellent high-temperature performance of PRS: under 60°C storage conditions, both the capacity retention and recovery rates of the S14 cell group are comprehensively higher than those of the PRS group. In addition, S14 demonstrates outstanding rate capability, entirely surpassing PRS, while its high-temperature cycling performance remains on par with PRS.

Based on the comprehensive evaluation data, as a derivative of PRS, S14 can significantly reduce internal cell resistance, improve high-temperature performance, and enhance rate capability and cycling performance. Its overall performance is comprehensively superior to that of PRS.