# Reduced graphene oxide paper electrode for lithium-ion cells – towards optimized thermal reduction

## TL;DR

This paper studies reduced graphene oxide paper as a potential electrode material for lithium-ion batteries, focusing on its properties after thermal reduction.

## Contribution

The novelty lies in optimizing thermal reduction of graphene oxide paper to enhance its electrical and electrochemical properties for battery applications.

## Key findings

- The conductivity of the material reached approximately 70 S/cm after thermal reduction at 800 °C.
- The discharge capacity of the material was approximately 160 mAh/g at a current density of 100 mA/g.

## Abstract

This work introduces the results of characterizing free-standing reduced graphene oxide paper, given its potential use as an electrode material in lithium-ion cells. Mildly reduced graphene oxide paper underwent further thermal reduction steps. The structural and chemical properties of the obtained materials were determined using Raman and Fourier-transform infrared spectroscopies and elemental combustion analysis. The morphology and thickness were determined with scanning electron microscopy imaging. This paper also reveals electrical and electrochemical properties of the material. The conductivity of the material obtained at 800 °C reached ≈70 S/cm, and the discharge capacity reached ≈160 mAh/g at 100 mA/g current density.