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Understanding the degradation of a model Si-anode in Li-ion battery at the atomic-scale

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arxiv 2207.08154 v1 pith:YMTU3GWL submitted 2022-07-17 cond-mat.mtrl-sci

Understanding the degradation of a model Si-anode in Li-ion battery at the atomic-scale

classification cond-mat.mtrl-sci
keywords degradationanalysisanodesatomic-levelatomic-scalebatterybeencandidates
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Si-anodes have long been candidates thanks to an expected ten-fold increase in capacity compared to graphite. However, details of the mechanisms governing their degradation remain elusive, hindering science-guided development of long-lived Si-based anodes. Here we demonstrate how the latest developments in cryo-atom probe tomography enable the in-depth analysis of the electrode and electrolyte, and their interface at atomic-level.

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