TY - JOUR
T1 - Size dependence of transport non-uniformities on localized plating in lithium-ion batteries
AU - Liu, Xinyi M.
AU - Fang, Alta
AU - Haataja, Mikko Petteri
AU - Arnold, Craig B.
N1 - Funding Information:
This work is funded by National Science Foundation through Materials Research Science and Engineering Center (DMR-1420541). We acknowledge support from the PRISM Imaging and Analysis Center (IAC) and Micro/Nano Fabrication Laboratory (MNFL), as well as summer students, Jon Wilson and Anne-Marie Obiadi, who had contributed to this project. Alta Fang acknowledges the National Science Foundation Graduate Research Fellowship under grant No. DGE 1148900. We thank Semcorp Co. for providing us with thin separators. We thank CAMP (Cell Analysis, Modeling and Prototyping) Facility and Support group at Argonne National Laboratory for providing test electrodes.
PY - 2018
Y1 - 2018
N2 - Plating in lithium-ion batteries not only reduces their lifetime, but also raises safety concerns. Preventing metallic lithium from forming is difficult, as the heterogeneity of materials typically used in batteries can create transport non-uniformities, which can lead to unanticipated local plating. Therefore, being able to predict the occurrence of plating due to a non-uniformity of a certain shape and size becomes essential. In this study, we probe the importance of the size scale and geometry on localized plating through numerical simulations and experiments. Using modified separators to create transport non-uniformities, we show that certain geometric features lead to more vulnerability to plating, and localization strongly depends on size. A single large feature in a separator induces more plating than a collection of smaller features with same total area. Our findings help elucidate the fundamentals behind heterogeneous plating, which can provide practical insights into battery safety and product control.
AB - Plating in lithium-ion batteries not only reduces their lifetime, but also raises safety concerns. Preventing metallic lithium from forming is difficult, as the heterogeneity of materials typically used in batteries can create transport non-uniformities, which can lead to unanticipated local plating. Therefore, being able to predict the occurrence of plating due to a non-uniformity of a certain shape and size becomes essential. In this study, we probe the importance of the size scale and geometry on localized plating through numerical simulations and experiments. Using modified separators to create transport non-uniformities, we show that certain geometric features lead to more vulnerability to plating, and localization strongly depends on size. A single large feature in a separator induces more plating than a collection of smaller features with same total area. Our findings help elucidate the fundamentals behind heterogeneous plating, which can provide practical insights into battery safety and product control.
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U2 - 10.1149/2.1181805jes
DO - 10.1149/2.1181805jes
M3 - Article
AN - SCOPUS:85046534964
SN - 0013-4651
VL - 165
SP - A1147-A1155
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 5
ER -