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Electrochemical lithium-ion insertion/extraction reactions of multilayered graphene with random twist angles
Satoshi Yamamoto1, Ryotaro Sakakibara2, Soichi Shima1
1Department of Materials Design Innovation Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8603, Japan. iriyama.yasutoshi@material.nagoya-u.ac.jp.
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.

