Development of coin-type cell and engineering of its compartments for rechargeable seawater batteries

Han, Jinhyup; Hwang, Soo Min; Go, Wooseok; Senthilkumar, S.; Jeon, Dong-Hoon; Kim, Young‐Sik

doi:10.1016/j.jpowsour.2017.11.022

Cited by 42 publications

(20 citation statements)

References 27 publications

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“…The 2032-type coin cell (Wellcos Co., Korea) and modified 2465-type coin cell were used to characterize the electrochemical performance of Na metal plating and stripping. 45 Electrochemical experiments were performed by using a flow-cell structure (4 TO ONE Energy Co., Korea) with the 4 mm thick carbon felt current collector (XF30A, Toyobo, Japan).…”

Section: Materials and Cell Fabricationmentioning

confidence: 99%

“…The 2032-type coin cells were fabricated by using a pre-patterned current collector, polymeric separator, 1 M NaOTf in dimethyl ether (DME, 99.5%, Sigma-Aldrich) electrolyte, and Na foil. For seawater battery assembly, modified 2465-type coin cells were used with Na-super ionic conductor (NASICON,Na3Zr2Si2PO12, 4 TO ONE Energy Co., Korea) separator and 1 M NaOTf in DME electrolyte 45.…”

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Deterministic growth of a sodium metal anode on a pre-patterned current collector for highly rechargeable seawater batteries

et al. 2019

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Section: Materials and Cell Fabricationmentioning

confidence: 99%

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confidence: 99%

Deterministic growth of a sodium metal anode on a pre-patterned current collector for highly rechargeable seawater batteries

et al. 2019

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“…Through the development of a normalized coin cell type, it was possible to conduct a uniform electrochemical evaluation and compare cell performance quantitatively and qualitatively, such that suitable active and passive materials for SWBs could be newly determined and applied to improve cell performance. [17] With the development of the rectangular cell type, the improvement in electrochemical performance accelerated along with the scale-up of batteries. In addition, the rectangular cell with a standardized design was a structure capable of automation and processability of cell manufacturing, and it presented a practical architecture advantageous for designing a parallel stacked Rechargeable seawater batteries (SWBs) using seawater as a catholyte have attracted extensive attention owing to the ocean's high theoretical energy density (3051 Wh L -1 , 3145 Wh kg -1 ) and excellent thermal management.…”

Section: Development Of Prismatic Cells For Rechargeable Seawater Bat...mentioning

confidence: 99%

Development of Prismatic Cells for Rechargeable Seawater Batteries

Kim

Shin

Jung

et al. 2022

Advanced Sustainable Systems

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Rechargeable seawater batteries (SWBs) using seawater as a catholyte have attracted extensive attention owing to the ocean's high theoretical energy density (3051 Wh L‐1, 3145 Wh kg‐1) and excellent thermal management. However, despite many improvements in materials and cell designs used in SWBs so far, there is a limit on the energy density in practical use, because of the lack of optimization of the cell structure. Herein, this work introduces a novel design by applying a rigid frame with an extended space called “prismatic‐type.” Consequently, an energy density of 23 Wh (242 Wh L‐1) is obtained by increasing the specific area of the unit cell and the capability of the anode active materials in the internal space. In addition, it enables the design of a discrete type that can improve the power density by increasing the surface area of the cathode current collectors. With the increased surface area, a peak power of 1162 mW is achieved for the discrete type compared to 727 mW for the integral type. These results suggest that these newly designed prismatic SWBs could contribute to practical applications in the near future.

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“…Then, we fabricated a gas-tight Swagelok-type CBS system consisting of a modified 2465-type coin cell comprising a BN-GFLP cathode, Na metal anode, natural seawater as the electrolyte, and superionic conductor membrane, which enables the formation of an aprotic electrolyte-based seawater hybrid system 35 ( Supplementary Fig. 7).…”

Section: Electrocatalytic Co 2 R Activity Of Bn-gflp In Cbs Systemmentioning

confidence: 99%

CO2 Reduction for C2+ in Seawater Using a Graphitic Frustrated Lewis Pair Catalyst

Kwon¹,

Kim²,

Park³

et al. 2020

Preprint

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Ocean acidification due to the absorption of 40% of the world’s anthropogenic CO2 emissions severely affects the faltering marine ecosystem and the economy. However, there are few reports on reducing CO2 dissolved in seawater. Herein, we introduce an electrochemical CO2 reduction battery system for use in seawater with a graphitic frustrated Lewis pair catalytic cathode doped with boron and nitrogen (BN-GFLP). BN-GFLP converts CO2 dissolved in seawater to multi-carbon (C2+) products during the discharge process, thus increasing the pH of intentionally acidified seawater from 6.4 to 8.0 with more than 87% Faradaic efficiency. In computational chemistry and spectroscopy, BN-GFLP binds CO2 in a unique manner that enables exothermic C–C coupling pathway to deliver 95% selectivity for valuable C2+ products. Based on our results, we suggest a molecular design strategy for next-generation CO2 reduction catalysts for both green oceans and the atmosphere.

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Development of coin-type cell and engineering of its compartments for rechargeable seawater batteries

Cited by 42 publications

References 27 publications

Deterministic growth of a sodium metal anode on a pre-patterned current collector for highly rechargeable seawater batteries

Deterministic growth of a sodium metal anode on a pre-patterned current collector for highly rechargeable seawater batteries

Development of Prismatic Cells for Rechargeable Seawater Batteries

CO2 Reduction for C2+ in Seawater Using a Graphitic Frustrated Lewis Pair Catalyst

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