TY - JOUR
T1 - Direct measurement of nanoscale lithium diffusion in solid battery materials using radioactive tracer of 8Li
AU - Ishiyama, H.
AU - Jeong, S. C.
AU - Watanabe, Y. X.
AU - Hirayama, Y.
AU - Imai, N.
AU - Jung, H. S.
AU - Miyatake, H.
AU - Oyaizu, M.
AU - Osa, A.
AU - Otokawa, Y.
AU - Matsuda, M.
AU - Nishio, K.
AU - Makii, H.
AU - Sato, T. K.
AU - Kuwata, N.
AU - Kawamura, J.
AU - Ueno, H.
AU - Kim, Y. H.
AU - Kimura, S.
AU - Mukai, M.
N1 - Funding Information:
This work supported by Grants-in Aid of #25390036 from the Ministry of Education, Culture, Sports, Science and Technology of Japan ( MEXT ), and a grant from the Institute of Materials Structure Science (IMSS) at High Energy Accelerator Research Organization (KEK) of Japan. The experiment was performed under the shared use program of the JAEA Facilities in Japan.
PY - 2016/6/1
Y1 - 2016/6/1
N2 - We have developed an in situ and nanoscale Li diffusion measurement method in Li battery materials using an α-emitting radioactive 8Li tracer. In this method, while implanting a low-energy (8 keV) 8Li beam, the α particles emitted at a small angle (10°) relative to the sample surface were detected as a function of time. Measurement for Li diffusion coefficients in a spinel phase LiMn2O4 (LMO) thin film has been started, which is used as an electrode in a Li ion secondary battery. An obvious Li diffusion effect in LMO was observed at the sample temperature of 623 K, and the further measurement is underway.
AB - We have developed an in situ and nanoscale Li diffusion measurement method in Li battery materials using an α-emitting radioactive 8Li tracer. In this method, while implanting a low-energy (8 keV) 8Li beam, the α particles emitted at a small angle (10°) relative to the sample surface were detected as a function of time. Measurement for Li diffusion coefficients in a spinel phase LiMn2O4 (LMO) thin film has been started, which is used as an electrode in a Li ion secondary battery. An obvious Li diffusion effect in LMO was observed at the sample temperature of 623 K, and the further measurement is underway.
KW - Li ion secondary battery
KW - Lithium diffusion coefficient
KW - Radioactive tracer
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U2 - 10.1016/j.nimb.2015.12.036
DO - 10.1016/j.nimb.2015.12.036
M3 - Article
AN - SCOPUS:84954285922
VL - 376
SP - 379
EP - 381
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
SN - 0168-583X
ER -