<br>使用可充电海水电池同时进行储能和海水淡化：可行性和未来方向,Advanced Science

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使用可充电海水电池同时进行储能和海水淡化：可行性和未来方向
Advanced Science ( IF 14.3 ) Pub Date : 2021-07-28 , DOI: 10.1002/advs.202101289
Moon Son ₁ , Sanghun Park ₁ , Namhyeok Kim ₂ , Anne Therese Angeles ₁ , Youngsik Kim ₂ , Kyung Hwa Cho ₁

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可充电海水电池（SWB）是一种独特的储能系统，可以直接将海水转化为可再生能源。在SWB阳极和阴极之间放置海水淡化室（表示为海水淡化电池；SWB-D），可以在为SWB充电的同时进行海水淡化。由于海水淡化是一项成熟的技术，主要采用反渗透（RO）等膜工艺，因此替代海水淡化技术必须考虑能源成本。到目前为止，基于单位淡化水成本（$ m ^-3 ）的SWB-D系统的可行性尚未得到充分讨论。因此，这个视角旨在提供这些信息，并根据详细的成本分析提供未来的研究方向。根据计算，当前SWB-D系统在96%能量回收且性能稳定的情况下，预计设备成本约为1.02 $ m ⁻³ （低于RO的0.60~1.20 $ m ⁻³ ）达到1000个周期。阴离子交换膜(AEM)和隔膜的材料成本贡献较大，分别占总成本的50%和41%。因此，未来的研究重点是创建低成本的AEM和分离器，将为SWB-D的大规模应用铺平道路。

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Simultaneous Energy Storage and Seawater Desalination using Rechargeable Seawater Battery: Feasibility and Future Directions

Rechargeable seawater battery (SWB) is a unique energy storage system that can directly transform seawater into renewable energy. Placing a desalination compartment between SWB anode and cathode (denoted as seawater battery desalination; SWB-D) enables seawater desalination while charging SWB. Since seawater desalination is a mature technology, primarily occupied by membrane-based processes such as reverse osmosis (RO), the energy cost has to be considered for alternative desalination technologies. So far, the feasibility of the SWB-D system based on the unit cost per desalinated water ($ m⁻³) has been insufficiently discussed. Therefore, this perspective aims to provide this information and offer future research directions based on the detailed cost analysis. Based on the calculations, the current SWB-D system is expected to have an equipment cost of ≈1.02 $ m⁻³ (lower than 0.60–1.20 $ m⁻³ of RO), when 96% of the energy is recovered and stable performance for 1000 cycles is achieved. The anion exchange membrane (AEM) and separator contributes greatly to the material cost occupying 50% and 41% of the total cost, respectively. Therefore, future studies focusing on creating low cost AEMs and separators will pave the way for the large-scale application of SWB-D.

更新日期：2021-09-22

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