DataVXACS Applied Materials & InterfacesPaper
journal article·2023-08-30

Influence of the Lithium-Ion Concentration in Electrolytes on the Performance of Dye-Sensitized Photorechargeable Batteries

Hyun-Gyu Han, So Yeon Yoon, Byung-Man Kim, Myeong-Hee Lee, Sungtae Kim, HyeonOh Shin, Deok-Ho Roh, Hyun-Kon Song, Tae-Hyuk Kwon

ACS Applied Materials & Interfaces· Volume 15· Issue 34
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Source abstract

Abstract

Dye-sensitized photorechargeable batteries (DSPBs) have recently gained attention for realizing energy recycling systems under dim light conditions. However, their performance under high storage efficiency (i.e., the capacity charged within a limited time) for practical application remains to be evaluated. Herein, we varied the lithium (Li)-ion concentration, which plays a dual role as energy charging and storage components, to obtain the optimized energy density of DSPBs. Electrochemical studies showed that the Li-ion concentration strongly affected the resistance characteristics of DSPBs. In particular, increasing the Li-ion concentration improved the output capacity and decreased the output voltage. Consequently, the energy density of the finely optimized DSPB improved from 8.73 to 12.64 mWh/cm 3 when irradiated by a 1000-lx indoor light-emitting-diode lamp. These findings on the effects of Li-ion concentrations in electrolytes on the performance of DSPBs represent a step forward in realizing the practical application of DSPBs.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Transition Metal Oxide Nanomaterials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea

Center for Wave Energy Materials, UNIST, Ulsan 44919, Republic of Korea

Industrial R&D Center, P2SG Global Corporation, Seoul 05052, Republic of Korea

Department of Engineering, University of Cambridge, Cambridge CB3 0FS, U.K.

School of Energy and Chemical Engineering, UNIST, Ulsan 44919, Republic of Korea

Graduate School of Carbon Neutrality, UNIST, Ulsan 44919, Republic of Korea

Graduate School of Semiconductor Materials and Device Engineering, UNIST, Ulsan 44919, Republic of Korea

Funding

Ulsan National Institute of Science and Technology · Korea Electric Power Corporation · Air Force Office of Scientific Research · Ministry of Trade, Industry and Energy

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