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Title: Overcharging a lithium-ion battery: effect on the LixC6 negative electrode determined by in situ neutron diffraction
Other Titles: 16th International Meeting on Lithium Batteries (IMLB-2012), June 17–22, 2012, Jeju International Conference Center (Jeju ICC), Jeju, Korea, “New Era for Smart Energy Storage".
Authors: Sharma, N
Peterson, VK
Keywords: X-ray lasers
Neutron diffraction
Issue Date: 15-Dec-2013
Publisher: Elsevier Science BV
Citation: Sharma, N., & Peterson, V. K. (2013). Overcharging a lithium-ion battery: effect on the LixC6 negative electrode determined by in situ neutron diffraction. [Special Issue - 16th International Meeting on Lithium Batteries (IMLB -2012)]. Journal of Power Sources, 244, 695-701. doi:10.1016/j.jpowsour.2012.12.019
Abstract: In situ neutron powder diffraction measurements of a commercial lithium-ion battery reveal perturbations to the phase evolution of the LixC6 electrode caused by overcharge. Above similar to 4.5 V the anode is entirely composed of LiC6. During discharge from the post-overcharged state LiC6 persists to the 90% discharge state, compared with its persistence to the 27% discharge state during conventional cycling. At the completely discharged state the post-overcharged anode is a mixture of LiC12, LiC18, and graphite, while the conventionally cycled anode is composed of graphite alone. The phase evolution of a post-overcharged battery during charge also differs relative to conventional cycling, most noticeably until the 9% state of charge. © 2013, Elsevier Ltd.
Gov't Doc #: 5426
ISSN: 0378-7753
Appears in Collections:Journal Articles

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