Sulfur-Carbon Composite Cathode Material for High-Rate Lithium-Sulfur Batteries (75% S, 0.1C 1180 mAh/g)

Cat No:BMSPEM-0711

Description

This sulfur-carbon composite cathode material from Eata Battery targets high-rate lithium-sulfur batteries. Specifications: sulfur content 75% (30-80% customizable); particle size D10 5 um, D50 15 um, Dmax 33 um; tap density 0.37 g/cm3. Electrochemical performance: 0.1C first capacity 1180 mAh/g with 1000 mAh/g retained after 50 cycles (testing ongoing); 0.2C first capacity 1090 mAh/g with 860 mAh/g after 100 cycles. In a 400 Wh/kg pouch cell, first capacity reaches 1200 mAh/g with capacity retention above 80% after 70 cycles. Reference electrode formulation: 91 wt% sulfur-carbon composite, 3 wt% conductive carbon, 6 wt% PVDF binder; electrolyte 1 M LiTFSI with 2 wt% LiNO3 additive in DOL/DME (1/1, v/v). Packaging 10 g per bag.