||Prussian Blue (PB) or Prussian Blue analog (PBA) attracts many attentions recently for it’s application potential not only in the field of Lithium battery but also in Sodium battery, a novel one compared to the former, because it offers large enough voids at the center portion of the lattice to accommodate Lithium or Sodium ions. In this thesis, the A-Ni-Co PBA (A=K , Ni) has been studied and divided into two parts.|
In the first part is determination of physical property. By added additional Potassium chloride in production process can make a bigger particle size sample.And if we added Rubidium chloride in production process, we can get the PBA sample that it’s center ionic is rubidium ion. And cause rubidium ion is larger than chloride ion, PBA sample with Rb in center usually crystal size is bigger than the sample that K in the center. By XPS analysis knows that both K-Ni-Co PBA1 and Rb-Ni-Co PBA were contained with Nickel(II), Cobalt(II), Cobalt(III). But two sample has different Co3+/Co2+ prorprtion. Rb-Ni-Co PBA has higher Co3+/Co2+ prorprtion then K-Ni-Co PBA1. In Raman spectroscopy shows that three sample has similar chemical bonding, and all of then are has higher energy than Fariba Safizadeh’s data shows that these sample has charge transfer that drive then to higher energy bonding.
The second part is A-Ni-Co electrochemistry analysis. In this part has two testing, one is full charge/discharge test, second testing is applied magnetic field effect to battery performance. In full charge/discharge test shows that Rb-Ni-Co PBA has highest anti-decilne ability. K-Ni-Co PBA shows that this sample has highest capacity. In applied magnetic field effect to battery performance test shows changing applied magnetic field will increase capacity in the short time when nixed 10% Ni nano powder in the electrodes production process.
|| Lian Shen, Zhaoxiang Wang and Liquan Chen , Che m. Eur. J. 2014, 20,12559 -12562|
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