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Effect of Porosity in Activated Carbon Supports for Silicon-Based Lithium-Ion Batteries (LIBs).

ABSTRACT: Activated carbon supports for Si deposition with different porosities were prepared, and the effect of porosity on the electrochemical characteristics was investigated. The porosity of the support is a key parameter affecting the Si deposition mechanism and the stability of the electrode. In the Si deposition mechanism, as the porosity of activated carbon increases, the effect of particle size reduction due to the uniform dispersion of Si was confirmed. This implies that the porosity of activated carbon can affect the rate performance. However, excessively high porosity reduced the contact area between Si and activated carbon, resulting in poor electrode stability. Therefore, controlling the porosity of activated carbon is essential to improving the electrochemical characteristics.

SUBMITTER: Choi YJ

PROVIDER: S-EPMC10249091 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature

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Effect of Porosity in Activated Carbon Supports for Silicon-Based Lithium-Ion Batteries (LIBs).

Choi Yun Jeong YJ Choi Jeong Bin JB Im Ji Sun JS Kim Ji Hong JH

ACS omega 20230523 22

Activated carbon supports for Si deposition with different porosities were prepared, and the effect of porosity on the electrochemical characteristics was investigated. The porosity of the support is a key parameter affecting the Si deposition mechanism and the stability of the electrode. In the Si deposition mechanism, as the porosity of activated carbon increases, the effect of particle size reduction due to the uniform dispersion of Si was confirmed. This implies that the porosity of activate ...[more]

PMID: 37305319

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