A large π-conjugated tetrakis (4-carboxyphenyl) porphyrin anode enables high specific capacity and superior cycling stability in lithium-ion batteries

Han Wu, Jianjun Zhang, Jianjun Zhang, Xiaofan Du, Min Zhang, Jinfeng Yang, Jinning Zhang, Jinning Zhang, Ting Luo, Hao Liu,

Chemical Communications · 2019 · 42 citations · 20 references

Concepts

Abstract

We demonstrated a novel single molecule - tetrakis(4-carboxyphenyl) porphyrin (TCPP) with a large π-conjugated system as a high-performance organic anode of lithium batteries. It was found that this TCPP displayed relatively low solubility (<0.1 mg mL-1) in a 1 M LiDFOB/PC electrolyte, high reversible specific capacity (ca. 1200 mA h g-1 at 358 mA g-1), excellent rate capability (548.4 mA h g-1 at 8 A g-1) and superior cycling performance (capacity retention of 89% after 2500 cycles at 6 A g-1).

References

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