Conjugated Ladder-Type Polymer with Hexaazatriphenylene Units as a Cathode Material for Lithium, Sodium, and Potassium Batteries

Roman R. Kapaev; Alexander F. Shestakov; Sergey G. Vasil'Ev; Keith J. Stevenson

doi:10.1021/acsaem.1c01970

Conjugated Ladder-Type Polymer with Hexaazatriphenylene Units as a Cathode Material for Lithium, Sodium, and Potassium Batteries

Roman R. Kapaev, Alexander F. Shestakov, Sergey G. Vasil'Ev, Keith J. Stevenson

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A ladder-type conjugated polymer with hexaazatriphenylene moieties is reported, and its application as a cathode material for Li-, Na-, and K-based batteries is assessed. The material demonstrates specific capacities of 170-180 mA h g-1 at 0.1 A g-1, and up to 113 mA h g-1 at 5 A g-1 (charge/discharge in ∼80 s). It also shows superior cycling stability, especially in potassium cells that show no capacity fade after 4000 cycles at 5 A g-1. Charge-discharge processes of the material are probed using operando Raman spectroscopy.

Original language	English
Pages (from-to)	10423-10427
Number of pages	5
Journal	ACS Applied Energy Materials
Volume	4
Issue number	10
DOIs	https://doi.org/10.1021/acsaem.1c01970
State	Published - 25 Oct 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
©

Funding

The reported study was funded by RFBR, project 19-33-90034. The authors thank Dr. Nadezhda Dremova (IPCP RAS, Chernogolovka) for SEM measurements, as well as Dr. Pavel Troshin (IPCP RAS) for valuable discussions.

Funders	Funder number
Russian Foundation for Basic Research	19-33-90034

Keywords

cathode material
lithium-ion battery
organic material
potassium-ion battery
sodium-ion battery

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acsaem.1c01970

Cite this

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AU - Vasil'Ev, Sergey G.

AU - Stevenson, Keith J.

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Conjugated Ladder-Type Polymer with Hexaazatriphenylene Units as a Cathode Material for Lithium, Sodium, and Potassium Batteries

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

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