A nanoporous sulfur-bridged hexaazatrinaphthylene framework as an organic cathode for lithium ion batteries with well-balanced electrochemical performance.

Some inherent drawbacks of organic cathode materials include low conductivity and high solubility in electrolytes, which lead to low rate capability and low cycling stability. Herein, a novel nanoporous sulfur-bridged hexaazatrinaphthylene (NSHATN) framework has been developed. The sulfur-bridged aromatic framework has good electrical conductivity and is insoluble in electrolytes. The well-defined nanoporous structure with the pore size dominant at 1.26 nm endows the framework with good ionic conductivity. With that, the NSHATN cathode for lithium ion batteries gives well-balanced electrical performances in capacity, cycling stability and rate capability.

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