A hydrated strontium cobalt oxyhydroxide Ruddlesden–Popper phase as an oxygen electrocatalyst for aqueous lithium–oxygen rechargeable batteries

2019 ◽  
Vol 55 (52) ◽  
pp. 7454-7457 ◽  
Author(s):  
Hidetoshi Sonoki ◽  
Daisuke Mori ◽  
Sou Taminato ◽  
Yasuo Takeda ◽  
Osamu Yamamoto ◽  
...  

A hydrated oxyhydroxide Ruddlesden–Popper phase, Sr3Co2O5(OH)2·2H2O, enhances oxygen electrocatalytic activity in an aqueous lithium salt solution.

2008 ◽  
Vol 155 (8) ◽  
pp. A583 ◽  
Author(s):  
Young-Gyoon Ryu ◽  
SeokSoo Lee ◽  
SangKook Mah ◽  
Dong Joon Lee ◽  
Kyungjung Kwon ◽  
...  

2009 ◽  
Vol 140 (9) ◽  
pp. 1001-1010 ◽  
Author(s):  
Aninda Jiban Bhattacharyya ◽  
Monalisa Patel ◽  
Shyamal Kumar Das

2004 ◽  
Vol 60 (6) ◽  
pp. 716-724 ◽  
Author(s):  
Peter Y. Zavalij ◽  
Shoufeng Yang ◽  
M. Stanley Whittingham

Recently lithium bis(oxalato)borate, LiB(C2O4)2, has been proposed as an alternative lithium salt for the electrolyte in rechargeable batteries that do not contain explosive perchlorate, reactive fluoride or toxic arsenic. This lithium salt crystallizes in the form of solvates from such solvents as water, acetonitrile, acetone, dimethoxyethane, 1,3-dioxolane and ethylene carbonate. Their crystal structures were determined in order to explore the crystal chemistry of this lithium salt. It was found that most of the solvents consist of a lithium bis(oxalato)borate dimer in which the ligand acts as both a chelating and a bridging agent. Lithium has octahedral coordination that typically includes one or, less commonly, two solvent molecules. An exception to this rule is the ethylene carbonate solvate where the lithium is tetrahedrally surrounded exclusively by the solvent and bis(oxalato)borate plays the role of counter-ion only. The ethylene carbonate solvates were also studied for LiPF6 and LiAsF6 salts and they have similar structures to the bis(oxalato)borate tetrahedral complexes.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
M. D. Becker ◽  
G. N. Garaventta ◽  
A. Visintin

Although the pulse-current electrodeposition method is a commonly used technique, it has not been widely employed in electrode preparation. This method was applied to sintered nickel electrodes in a nickel salt solution containing additives. The active material that was obtained, nickel hydroxide, was studied using different characterization techniques. Electrodes impregnated with pulse current had higher capacity than those impregnated with continuous current. The active material is homogeneous and compact with optimum loading and good performance during discharge. These characteristics would provide a large amount of energy in a short time due to an increase in the electrode kinetic reaction.


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