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

Chem Commun (Camb). 2024 Nov 25. doi: 10.1039/d4cc04441j. Online ahead of print.

Authors

Affiliations

¹ Department of Materials Design Innovation Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8603, Japan. iriyama.yasutoshi@material.nagoya-u.ac.jp.
² Department of Chemical Systems Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8603, Japan.
³ Kyushu University Platform of Inter-Transdisciplinary Energy Research, Kyushu University, Kasuga, Fukuoka, 816-8580, Japan.
⁴ Faculty of Science and Engineering, Waseda University, Tokyo, 169-8555, Japan.
⁵ Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba, Sendai, Miyagi, 980-8579, Japan.

PMID: 39584257
DOI: 10.1039/d4cc04441j

Abstract

A multilayer graphene film with random twist angles between layers (TAGr) on SiC(0001̄) 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.