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. 2015 Jun 12;6:7278. doi: 10.1038/ncomms8278

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(a) The discharge/charge capacities and Coulombic efficiencies of the Li/S-TTCA-I and Li/S-TTCA-II cells for 300 cycles at different C rates. (b) Representative voltammograms of the S-TTCA-I cathode obtained at different scan rates and (c) Li⁺-ion diffusion coefficients of the S-TTCA-I, S-TTCA-II and S–C cathodes, calculated using the Randles–Sevcik equation. (d) Rate performance of the Li/S-TTCA-I cell, compared with that of the Li/S–C cell.