Yu, Seungho Kim, Soo Kim, Tae Young Nam, Jin Hyun Cho, Won Il 2024-01-20T13:00:33Z 2024-01-20T13:00:33Z 2021-09-01 2013-03 0021-891X https://pubs.kist.re.kr/handle/201004/128297 To achieve a high energy density for Li-ion batteries, it is important to optimize the electrode thickness and electrode density. It is common to design the electrodes to be thick and dense to achieve a high energy density. However, highly tortuous transport paths in thick and dense electrodes can lead to severe transport losses, which negatively affect the cell performance. In this work, we investigated the effects of varying the electrode thickness and density on lithium ion transport in the electrolytes by means of both experiments and simulations. Both results indicated that an additional capacity loss occurs from the electrode with low porosity because the effective diffusivity decreased in the electrolyte phase. Optimal ranges of the electrode thickness and density (porosity) that can be used to help design high-power LiFePO4/graphite batteries were also suggested in this work. English SPRINGER CATHODE MATERIALS LITHIUM MICROSTRUCTURE OPTIMIZATION DISCHARGE Transportation properties in nanosized LiFePO4 positive electrodes and their effects on the cell performance Article 10.1007/s10800-012-0512-3 1 JOURNAL OF APPLIED ELECTROCHEMISTRY, v.43, no.3, pp.253 - 262 JOURNAL OF APPLIED ELECTROCHEMISTRY 43 3 253 262 scie scopus 000314683800002 2-s2.0-84893648863 Electrochemistry Electrochemistry Article CATHODE MATERIALS LITHIUM MICROSTRUCTURE OPTIMIZATION DISCHARGE Lithium-ion battery LiFePO4 Electrode density Electrode thickness Tortuosity Effective diffusivity