Chemistry

1901 Submissions

[1] viXra:1901.0263 [pdf] submitted on 2019-01-19 01:54:43

Sodium Metal Battery Using Cobaltoxide Through in Situ Plating of Sodium Metal

Authors: Saurav L. Chaudhari ; Ketan P. Pise
Comments: 9 Pages.

In this work, we demonstrate that an impugn of energy density for sodium chemistries can be prevail through an anode-free architecture enabled by the use of a (nanocarbon/Cobaltoxide) nucleation layer formed on Aluminium current collectors. Electrochemical studies show this configuration to provide highly stable and efficient plating and stripping of sodium metal over a range of currents up to 5 mA/cm2, sodium loading up to 14 mAh/cm2, and with long-term endurance exceeding 1000 cycles at a current of 0.7 mA/cm2. Building upon this anode-free architecture, we demonstrate a full cell using a presodiated pyrite cathode to achieve energy densities of ∼400 Wh/kg, far surpassing recent reports on SIBs and even the theoretical maximum for LIB technology while still relying on naturally abundant raw materials and cost-effective aqueous processing.
Category: Chemistry