TY - JOUR
T1 - Lithium intercalation into bilayer graphene
AU - Ji, Kemeng
AU - Han, Jiuhui
AU - Hirata, Akihiko
AU - Fujita, Takeshi
AU - Shen, Yuhao
AU - Ning, Shoucong
AU - Liu, Pan
AU - Kashani, Hamzeh
AU - Tian, Yuan
AU - Ito, Yoshikazu
AU - Fujita, Jun ichi
AU - Oyama, Yutaka
N1 - Funding Information:
This work was sponsored by JSPS Grant-in-Aid for Scientific Research on Innovative Areas “Discrete Geometric Analysis for Materials Design” (grant number: JP18H04477), JSPS KAKENHI (grant numbers JP16J06828, JP17H01325, JP15H05473, JP18K14174, JP26107504, JP23246063, and JP15H02195), JST-PRESTO “Creation of Innovative Core Technology for Manufacture and Use of Energy Carriers from Renewable Energy” (JPMJPR1541), and the fusion research funds of “World Premier International (WPI) Research Center Initiative for Atoms, Molecules and Materials” from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. This work was also partially sponsored by the THz evaluation group under the Center of World Intelligence Project for Nuclear S&T and Human Resource Development by MEXT, Japan. K.J. was sponsored by the JSPS fellowship program (JP16J06828), University of Tsukuba Basic Research Support Program Type S, and the Mukai science and technology foundation. We thank Professor M.W. Chen at AIMR and Ms. Kazuyo Omura at the Institute for Material Research in Tohoku University for experiment assistance. We also appreciate the comments by Professor Takashi Kyotani and Professor Hongmin Zhu at Tohoku University.
PY - 2019/12/1
Y1 - 2019/12/1
N2 - The real capacity of graphene and the lithium-storage process in graphite are two currently perplexing problems in the field of lithium ion batteries. Here we demonstrate a three-dimensional bilayer graphene foam with few defects and a predominant Bernal stacking configuration, and systematically investigate its lithium-storage capacity, process, kinetics, and resistances. We clarify that lithium atoms can be stored only in the graphene interlayer and propose the first ever planar lithium-intercalation model for graphenic carbons. Corroborated by theoretical calculations, various physiochemical characterizations of the staged lithium bilayer graphene products further reveal the regular lithium-intercalation phenomena and thus fully illustrate this elementary lithium storage pattern of two-dimension. These findings not only make the commercial graphite the first electrode with clear lithium-storage process, but also guide the development of graphene materials in lithium ion batteries.
AB - The real capacity of graphene and the lithium-storage process in graphite are two currently perplexing problems in the field of lithium ion batteries. Here we demonstrate a three-dimensional bilayer graphene foam with few defects and a predominant Bernal stacking configuration, and systematically investigate its lithium-storage capacity, process, kinetics, and resistances. We clarify that lithium atoms can be stored only in the graphene interlayer and propose the first ever planar lithium-intercalation model for graphenic carbons. Corroborated by theoretical calculations, various physiochemical characterizations of the staged lithium bilayer graphene products further reveal the regular lithium-intercalation phenomena and thus fully illustrate this elementary lithium storage pattern of two-dimension. These findings not only make the commercial graphite the first electrode with clear lithium-storage process, but also guide the development of graphene materials in lithium ion batteries.
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U2 - 10.1038/s41467-018-07942-z
DO - 10.1038/s41467-018-07942-z
M3 - Article
C2 - 30655526
AN - SCOPUS:85060174473
VL - 10
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 275
ER -