Electrochemical lithium-ion insertion/extraction reactions of multilayered graphene with random twist angles

Satoshi Yamamoto; Ryotaro Sakakibara; Soichi Shima; Shinsuke Matsuura; Takeshi Yajima; Munekazu Motoyama; Wataru Norimatsu; Yuta Kimura; Koji Amezawa; Yasutoshi Iriyama

doi:10.1039/D4CC04441J

Electrochemical lithium-ion insertion/extraction reactions of multilayered graphene with random twist angles†

Satoshi Yamamoto,^a Ryotaro Sakakibara,^b Soichi Shima,^a Shinsuke Matsuura,^a Takeshi Yajima,^a Munekazu Motoyama,^ac Wataru Norimatsu,^bd Yuta Kimura,

^e Koji Amezawa^e and Yasutoshi Iriyama

*^a

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* Corresponding authors

^a Department of Materials Design Innovation Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan
E-mail: iriyama.yasutoshi@material.nagoya-u.ac.jp

^b Department of Chemical Systems Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan

^c Kyushu University Platform of Inter-Transdisciplinary Energy Research, Kyushu University, Kasuga, Fukuoka, Japan

^d Faculty of Science and Engineering, Waseda University, Tokyo, Japan

^e Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba, Sendai, Miyagi, Japan

Abstract

A multilayer graphene film with random twist angles between layers (TAGr) on SiC(000 [1 with combining macron] ) shows six pairs of redox peaks for Li⁺ insertion/extraction reaction. The distributed twisted angle in TAGr regulates Li⁺ insertion sites, and smaller c-axis expansion (3%) is realized by Li⁺ insertion.

This article is part of the themed collection: Electrochemical energy storage

Chemical Communications

Electrochemical lithium-ion insertion/extraction reactions of multilayered graphene with random twist angles†

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Electrochemical lithium-ion insertion/extraction reactions of multilayered graphene with random twist angles

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