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Cobalt phthalocyanine material is successfully applied as active materials for lithium-ion batteries for the first time. Amazing activity of the as-prepared CoPPc with the capability of reversible Li-ion insertion/extraction is demonstrated experimentally with long cycle life and a relatively high capacity. It delivers a reversible discharge capacity of 514 mA h g-1 at 200 mA g-1 after 550 cycles. The successful application of cobalt phthalocyanine provides a new approach for the development of electrode materials for lithium-ion batteries.

https://doi.org/10.1149/1945-7111/ac2ac7