Hybrid photoelectrochemical-rechargeable seawater battery for efficient solar energy storage systems

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dc.contributor.author Han, Jinhyup ko
dc.contributor.author Lee, Sangwoo ko
dc.contributor.author Youn, Chulmin ko
dc.contributor.author Lee, Jinho ko
dc.contributor.author Kim, Youngsik ko
dc.contributor.author Choi, Taekjib ko
dc.date.available 2020-01-30T09:07:59Z -
dc.date.created 2020-01-29 ko
dc.date.issued 2020-02 ko
dc.identifier.citation ELECTROCHIMICA ACTA, v.332, pp.135443 ko
dc.identifier.issn 0013-4686 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/30938 -
dc.description.abstract Eco-friendly harnessing of both ocean chemical energy and solar energy would represent a sustainable solution for future energy conversion/storage systems, but it has been challenging to enhance the energy efficiency of such systems for practical applications. Here, we demonstrate an efficient photoelectrochemical-assisted rechargeable seawater battery. By integrating TiO2 nanostructure-based photoelectrodes with the seawater battery, we achieved significant enhancement of the voltage efficiency during the charging/discharging processes; effective photocharging with the TiO2 photoanode reduced the charging voltage to similar to 2.65 V, while the heated carbon felt (HCF) cathode in the seawater battery exhibited charging/discharging voltages of similar to 3.8 V and similar to 2.9 V, respectively. Such a charging voltage reduction led to a voltage efficiency of similar to 109%. Moreover, interestingly, we found that TiO2 nanostructures showed excellent photoelectrochemical performances in seawater in association with the efficient photocharging. As a result, the utilization of TiO2 nanostructures as photocharging/discharging electrodes provides a feasible strategy to optimize the cell configuration for highly efficient solar seawater batteries. ko
dc.language 영어 ko
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD ko
dc.title Hybrid photoelectrochemical-rechargeable seawater battery for efficient solar energy storage systems ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85076237656 ko
dc.identifier.wosid 000506201800013 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.electacta.2019.135443 ko
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S0013468619323151?via%3Dihub ko
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