TY - JOUR

T1 - Anthraquinone-Quinizarin Copolymer as a Promising Electrode Material for High-Performance Lithium and Potassium Batteries

AU - Shchurik, Elena

AU - Kraevaya, Olga

AU - Vasil’ev, Sergey

AU - Zhidkov, Ivan

AU - Kurmaev, Ernst z.

AU - Shestakov, Alexander

AU - Troshin, Pavel

N1 - This research was funded by the Ministry of Science and Higher Education of Russian Federation (project FFSG-2022-0001 (122111700046-3), “Laboratory of perspective electrode materials for chemical power sources”). The solid-state NMR spectroscopy measurements were performed at the Research Resource Center of the Scientific Center “Chernogolovka” of RAS. XPS measurements were supported by Ministry of Science and Higher Education of the Russian Federation (Ural Federal University Program of Development within the Priority-2030 Program and theme “Electron” No. AAAA-A18–118020190098-5).

PY - 2023

Y1 - 2023

N2 - The growing demand for cheap, safe, recyclable, and environmentally friendly batteries highlights the importance of the development of organic electrode materials. Here, we present a novel redox-active polymer comprising a polyaniline-type conjugated backbone and quinizarin and anthraquinone units. The synthesized polymer was explored as a cathode material for batteries, and it delivered promising performance characteristics in both lithium and potassium cells. Excellent lithiation efficiency enabled high discharge capacity values of >400 mA g−1 in combination with good stability upon charge–discharge cycling. Similarly, the potassium cells with the polymer-based cathodes demonstrated a high discharge capacity of >200 mAh g−1 at 50 mA g−1 and impressive stability: no capacity deterioration was observed for over 3000 cycles at 11 A g−1, which was among the best results reported for K ion battery cathodes to date. The synthetic availability and low projected cost of the designed material paves a way to its practical implementation in scalable and inexpensive organic batteries, which are emerging as a sustainable energy storage technology.

AB - The growing demand for cheap, safe, recyclable, and environmentally friendly batteries highlights the importance of the development of organic electrode materials. Here, we present a novel redox-active polymer comprising a polyaniline-type conjugated backbone and quinizarin and anthraquinone units. The synthesized polymer was explored as a cathode material for batteries, and it delivered promising performance characteristics in both lithium and potassium cells. Excellent lithiation efficiency enabled high discharge capacity values of >400 mA g−1 in combination with good stability upon charge–discharge cycling. Similarly, the potassium cells with the polymer-based cathodes demonstrated a high discharge capacity of >200 mAh g−1 at 50 mA g−1 and impressive stability: no capacity deterioration was observed for over 3000 cycles at 11 A g−1, which was among the best results reported for K ion battery cathodes to date. The synthetic availability and low projected cost of the designed material paves a way to its practical implementation in scalable and inexpensive organic batteries, which are emerging as a sustainable energy storage technology.

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U2 - 10.3390/molecules28145351

DO - 10.3390/molecules28145351

M3 - Article

VL - 28

JO - Molecules

JF - Molecules

SN - 1420-3049

IS - 14

M1 - 5351

ER -