Abstract
AbstractSSS We fabricated asymmetric hybrid supercapacitors using binary materials composed of various ratios of H 2 Ti 12 O 25 and Li 4 Ti 5 O 12 as anodes and activated carbon as cathodes to investigate the tenability of their electrochemical performances. The binary materials have two advantageous properties: not only outstanding cyclability derived from Li 4 Ti 5 O 12 , but also excellent rate ability derived from H 2 Ti 12 O 25 . Because of these characteristics, hybrid supercapacitors with an 8:2 ratio of Li 4 Ti 5 O 12 /H 2 Ti 12 O 25 as the anodes show promising electrochemical performance by complementary synergistic effects of H 2 Ti 12 O 25 and Li 4 Ti 5 O 12 . Thus, we believe that hybrid supercapacitors containing Li 4 Ti 5 O 12 /H 2 Ti 12 O 25 (8/2) could be used for high-grade energy storage devices that require longevity and ultrahigh electrochemical performance.
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